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A Study of Brentuximab Vedotin + Adriamycin, Vinblastine, and Dacarbazine in Pediatric Participants With Advanced Stage Newly Diagnosed Hodgkin Lymphoma

An Open-Label Study of Brentuximab Vedotin + Adriamycin, Vinblastine, and Dacarbazine in Pediatric Patients With Advanced Stage Newly Diagnosed Hodgkin Lymphoma

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02979522
Enrollment
59
Registered
2016-12-01
Start date
2017-09-06
Completion date
2029-09-24
Last updated
2025-11-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hodgkin Disease

Keywords

Drug therapy, pediatric Hodgkin disease, frontline Hodgkin disease, advanced stage Hodgkin disease, pediatric lymphoma

Brief summary

The purpose of this study is to assess the safety, tolerability, and anti-tumor activity, as well as confirm the recommended dose of brentuximab vedotin (ADCETRIS) in combination with a multiagent chemotherapy regimen, doxorubicin (Adriamycin), vinblastine, and dacarbazine, in pediatric participants with advanced stage newly diagnosed classical CD30+ Hodgkin Lymphoma (HL).

Detailed description

The drug being tested in this study is called brentuximab vedotin. Brentuximab vedotin is being tested to treat pediatric participants who have advanced stage, newly diagnosed, classical CD30+ HL. This study will assess the safety, tolerability, and anti-tumor activity, as well as recommended dose of brentuximab vedotin in combination with a multiagent chemotherapy regimen that is based on a current standard of care (SOC) first-line treatment regimen for newly diagnosed HL. The study will enroll approximately 55 evaluable participants. The study will be conducted in 2 phases, Phase 1 and Phase 2. Phase 1 study will enroll at least 6 participants to determine the recommended dose. Once the recommended dose is identified additional participants will be enrolled into phase 2 so that the total number of evaluable participants will be at least 55, including participants treated at recommended dose in Phase 1. Participants will be enrolled to the following initial dose cohort with an option to explore a reduced dose cohort at 36 mg/m\^2 if needed: • Brentuximab vedotin 48 mg/m\^2 in combination with doxorubicin, vinblastine, and dacarbazine. This multi-center trial will be conducted in the United States, Italy, Brazil and Japan. The overall time to participate in this study is approximately 55 months, including the follow-up period. Participants will be followed for a maximum of 30 days following the last dose of protocol therapy for a follow-up assessment and will be followed for survival and disease status every 12 weeks for 12 months, and then every 24 weeks until death or study closure or for up to 2 years from the date of the last participant enrolled.

Interventions

DRUGBrentuximab vedotin

Brentuximab vedotin infusion

DRUGDoxorubicin

Doxorubicin infusion

DRUGVinblastine

Vinblastine infusion

DRUGDacarbazine

Dacarbazine infusion

Sponsors

Takeda
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
5 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

Each participant must meet all the following inclusion criteria to be enrolled in the study: 1. Histologically confirmed CD30+ classical HL. 2. Advanced stage, newly diagnosed HL (Stage III and Stage IV disease). 3. Treatment-naive HL. 4. Have performance scores of greater than or equal to (\>=) 50 for Lansky Play-performance or Karnofsky Performance Status. 5. Have bidimensional measurable disease as documented by radiographic technique per International Working Group (IWG) criteria. 6. Have adequate blood counts, renal and liver function as defined in the protocol.

Exclusion criteria

1. Nodular lymphocyte predominant HL. 2. Known active cerebral/meningeal disease, including signs or symptoms of progressive multifocal leukoencephalopathy (PML) or any history of PML. 3. Any sensory or motor peripheral neuropathy. 4. Symptomatic neurologic disease compromising normal activities of daily living or requiring medications. 5. Any active systemic viral, bacterial, or fungal infection requiring systemic antibiotics within 2 weeks before the first study protocol therapy. 6. Known hypersensitivity to recombinant proteins, murine proteins, or to any excipient contained in the drug formulation of brentuximab vedotin or any component of AVD. 7. Known human immunodeficiency virus positive. 8. Known hepatitis B surface antigen positive or known or suspected active hepatitis C infection, as determined by hepatitis B DNA or hepatitis C RNA, respectively, in blood. 9. Diagnosed or treated for another malignancy within 3 years before the first dose or previously diagnosed with another malignancy and have any evidence of residual disease. Participants with nonmelanoma skin cancer or carcinoma in situ of any type are not excluded if they have undergone complete resection. 10. Use of any strong or listed moderate cytochrome P450 (CYP) 3A4 inhibitors less than (\<) 2 weeks before the first dose of protocol therapy (please refer to the Study Manual for an example list of prohibited CYP3A4 inhibitors). 11. Any of the following cardiovascular conditions or values within 6 months before the first dose of protocol therapy: * Shortening fraction of \<27 percent (%) by echocardiogram or, if echocardiogram not feasible, ejection fraction of \<50% by radionuclide angiogram (RNA or MUGA \[multiple-gated acquisition scan\]). * New York Heart Association Class III or IV heart failure. * Evidence of current uncontrolled cardiovascular conditions, including cardiac arrhythmias, congestive heart failure, angina, or electrocardiographic evidence of acute ischemia or active conduction system abnormalities.

Design outcomes

Primary

MeasureTime frameDescription
Phase 1: Recommended Dose of Brentuximab Vedotin in Combination With Doxorubicin, Vinblastine, and Dacarbazine in a Pediatric PopulationFrom the first dose (Cycle 1) up to Day 56 (Cycle length=28 days)The recommended dose was determined after considering all safety data in phase 1 and assessing for dose limiting toxicities (DLTs) which are defined as the dose range at which less than or equal to (\<=) 1 of 6 evaluable participants experience DLT within the defined observation period (Cycle 1 + 28 days). This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.
Phase 1: Percentage of Participants Who Experienced Adverse Events (AEs) From the First Dose of Protocol Therapy Through 30 Days After Administration of the Last Dose of Protocol TherapyFrom first dose in Cycle 1 Day 1 until 30 days after the last dose of study drug in Cycle 6 Day 15 (up to Cycle 7 Day 15) (Cycle length=28 days)AE means any untoward medical occurrence in a participant administered a pharmaceutical product; the untoward medical occurrence does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product whether or not it is related to the medicinal product. This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.
Phase 1: Percentage of Participants Who Experienced Serious Adverse Events (SAEs) From the First Dose of Protocol Therapy Through 30 Days After Administration of the Last Dose of Protocol TherapyFrom first dose in Cycle 1 Day 1 until 30 days after the last dose of study drug in Cycle 6 Day 15 (up to Cycle 7 Day 15) (Cycle length=28 days)AE means any untoward medical occurrence in a participant administered a pharmaceutical product; the untoward medical occurrence does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product whether or not it is related to the medicinal product. SAE is defined as any untoward medical occurrence that at any dose results in death, Is life-threatening, requires inpatient hospitalization or prolongation of an existing hospitalization, results in persistent or significant disability or incapacity, Is a congenital anomaly/birth defect, Is a medically important event.
Phase 2: Percentage of Participants Who Achieved a Complete Remission (CR) Per Independent Review Facility (IRF) Assessment Per International Working Group (IWG) Criteria at End of Treatment (EOT) VisitAt end of treatment (EOT) visit 30 days after the last dose of study drug (at Month 7)CR was defined as the disappearance of all evidence of disease as assessed by IRF as per IWG Criteria. The confidence interval was based on exact binomial distribution (Clopper-Pearson method). This outcome measure was planned to be assessed for all participants treated at the recommended dose in Phase 2. As prespecified in the statistical analysis plan (SAP) , data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Percentage of Participants Whose Disease Was Positron Emission Tomography (PET) Negative After 2 Cycles of Protocol Therapy Per IRF AssessmentFrom first dose of study drug up to Cycle 2 Day 25 (Each Cycle length=28 days)The Deauville score according to IRF assessment of response was used to evaluate the results of PET scans. PET negative after Cycle 2 was defined as an IRF Deauville score of (1 or 2 or 3). This outcome measure was planned to be assessed for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Percentage of Participants Who Achieved a Partial Remission (PR) Per IRF Assessment Per IWG Criteria at EOT VisitAt EOT visit 30 days after the last dose of study drug (at Month 7)PR was defined as regression of measurable disease and no new sites as assessed by IRF as per IWG criteria. Percentage of participants in the response-evaluable population who achieved a partial response based on the IRF assessment at the EOT visit based on the IWG criteria are reported. The confidence interval was based on exact binomial distribution (Clopper-Pearson method). This outcome measure was planned to be assessed for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Percentage of Participants Who Achieved an Overall Response Rate (ORR) Per IRF Assessment Per IWG Criteria at EOT VisitAt EOT visit 30 days after the last dose of study drug (at Month 7)Overall response rate was defined as the percentage of participants with CR or PR as assessed by IRF using IWG criteria. CR was defined as the disappearance of all evidence of disease and PR was defined as regression of measurable disease and no new diseases. The confidence interval was based on exact binomial distribution (Clopper-Pearson method). This outcome measure was planned to be assessed for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Percentage of Participants Who Were Able to Complete 6 Cycles of Protocol Therapy at the Recommended DoseFrom first dose of study drug up to Cycle 6 (Each Cycle length=28 days)This outcome measure was planned to be assessed for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Secondary

MeasureTime frameDescription
Phase 1: Percentage of Participants Who Achieved an ORR Per IRF Assessment Per IWG Criteria at EOT VisitAt EOT visit 30 days after the last dose of study drug (at Month 7)Overall response rate was defined as the percentage of participants with CR or PR as assessed by an IRF using IWG Revised Response Criteria. CR was defined as the disappearance of all evidence of disease and PR was defined as regression of measurable disease and no new sites. The confidence interval was based on exact binomial distribution (Clopper-Pearson method). This outcome measure was planned to be assessed only for participants treated in Phase 1 arm.
Phase 1: Percentage of Participants Whose Disease Was PET Negative After 2 Cycles of Protocol Therapy Per IRF AssessmentFrom first dose of study drug up to Cycle 2 (Each Cycle length=28 days)The Deauville score according to IRF assessment of response was used to evaluate the results of PET scans. PET negative after Cycle 2 was defined as an IRF Deauville score of (1 or 2 or 3). This outcome measure was planned to be assessed only for participants treated in Phase 1 arm.
Phase 1: Percentage of Participants Whose Disease Was PET Positive After 6 Cycles of Protocol Therapy Per IRF AssessmentFrom first dose of study drug up to Cycle 6 (Each Cycle length=28 days)The Deauville score according to IRF assessment of response was used to evaluate the results of PET scans. PET positive after Cycle 6 defined as an IRF Deauville score of (4 or 5). This outcome measure was planned to be assessed only for participants treated in Phase 1 arm.
Phase 1: Percentage of Participants Who Were Antitherapeutic Antibody (ATA) Positive, Persistently Positive or Transiently Positive, and Neutralizing Antitherapeutic Antibody (nATA) PositiveUp to 7 monthsATA positive was defined as participants who have a positive ATA in any postbaseline sample. Transiently ATA positive was defined as participants who have positive ATA in 1 or 2 postbaseline samples. Persistently ATA positive was defined as participants who have positive ATA in more than 2 postbaseline timepoints. Transiently ATA positive was defined as participants who have positive ATA in 1 or 2 postbaseline samples. nATA positive was defined as participants who have at least one positive nATA in any postbaseline ATA positive sample. Here, percentage of participants who were transiently or persistently ATA positive are considered as ATA positive. This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.
Phase 2: Progression-free Survival (PFS)Up to 24 monthsPFS per IRF:time from first dose until disease progression per IRF/death due to any cause,whichever occurred first.Participants with no objective progressive disease (PD),did not die,were still on study follow-up at time of analysis were removed from study prior to documentation of PD,PFS was censored on date of last adequate disease assessment before initiation of any non-protocol,alternative therapy.Participants who were on antitumor treatment,other than SCT/radiotherapy,censoring was at last adequate disease assessment before initiation of such alternative treatment.If participant experienced disease progression per IRF/died after initiation of antitumor treatment,other than SCT/radiotherapy,such participant was censored and not considered having PFS.Outcome measure was planned to be assessed for all participant treated at recommended dose in Phase 2.As per SAP,Phase 2 data was summarized and reported in two arms:Phase 2 and Phase 1 + Phase 2.
Phase 2: Event-free Survival (EFS)Up to 24 monthsEFS:Time from first dose until any treatment failure:PD per IRF including progression events during follow-up period,failing to complete 6 cycles of treatment due to any reason or death due to any cause,whichever occurred first.EFS per IRF were censored on last adequate disease assessment date per IRF if none of above events occur during study.Participants with antitumor treatment,other than SCT/radiotherapy as part of frontline treatment were censored at last adequate disease assessment before initiation of such alternative treatment.If a participant experienced disease progression per IRF/died after initiation of antitumor treatment,other than SCT/radiotherapy,such participant was censored,and not be considered having EFS.This outcome measure was planned to be assessed for all patients treated at recommended dose in Phase 2.As prespecified in SAP,data for Phase 2 was summarized and reported in two arms:Phase 2 and Phase 1 + Phase 2.
Phase 2: Overall Survival (OS)Up to 24 monthsOverall survival was defined as time from first dose until death. In the absence of confirmation of death, survival time was censored at the last date the participant was known to be alive, including study closure. This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Duration of Response (DOR)Up to 24 monthsDOR per IRF in participants with a response (CR or PR per IRF) was defined as the time from start of the first objective tumor response (CR or PR per IRF) to the first subsequent PD or death due to any cause, whichever occurred first. For patients who did not have an objective PD, did not die and are either still on a study follow-up at the time of the analysis, or were removed from the study prior to documentation of PD, DOR has been censored on the date of last adequate disease assessment. This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 1: Number of ATA Positive and ATA Negative Participants With AEs and SAEsUp to 24 monthsThis outcome measure is planned to be assessed only for participants treated in Phase 1 arm.
Phase 2: Percentage of Participants Receiving Irradiation for HL Following Study TreatmentUp to 24 monthsThis outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Percentage of Participants Who Experienced AEs From the First Dose of Protocol Therapy Through 30 Days After Administration of the Last Dose of Protocol TherapyFrom first dose in Cycle 1 Day 1 until 30 days after the last dose of study drug in Cycle 6 Day 15 (up to Cycle 7 Day 15) (Cycle length=28 days)This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Percentage of Participants Who Experienced SAEs From the First Dose of Protocol Therapy Through 30 Days After Administration of the Last Dose of Protocol TherapyFrom first dose in Cycle 1 Day 1 until 30 days after the last dose of study drug in Cycle 6 Day 15 (up to Cycle 7 Day 15) (Cycle length=28 days)This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Percentage of Participants Who Were ATA Positive, Persistently Positive, or Transiently Positive, and nATA PositiveFrom first dose until 30 days after the last dose of study drug (up to 7 months)ATA positive was defined as participants who have a positive ATA in any postbaseline sample. Transiently ATA positive was defined as participants who have positive ATA in 1 or 2 postbaseline samples. Persistently ATA positive was defined as participants who have positive ATA in more than 2 postbaseline timepoints. Transiently ATA positive was defined as participants who have positive ATA in 1 or 2 postbaseline samples. nATA positive was defined as participants who have at least one positive nATA in any postbaseline ATA positive sample. Here, percentage of participants who were transiently or persistently ATA positive are considered as ATA positive. This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbDays 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Mean Plasma Cmax of MMAEDays 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbDays 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Mean Plasma AUC0-15 of MMAEDays 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumDays 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Median Tmax of MMAE in PlasmaDays 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Percentage of Participants Who Experienced Peripheral Neuropathy, Regardless of Seriousness, From the First Dose of Protocol TherapyUp to 24 monthsPeripheral Neuropathy (PN) was defined by the peripheral neuropathy standardized MedDRA query (SMQ) broad search. This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Time to Onset and Resolution for All Peripheral Neuropathy EventsUp to 24 monthsTime to onset of first event was defined as time from first dose of study drug to onset of first treatment-emergent PN event. Time to resolution was calculated as the time from onset date to the date of resolution PN (SMQ) event. Participants with multiple resolved events were counted once at the longest time to resolution. Resolution was defined as an event outcome of resolved or resolved with sequelae. This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Immune Reconstitution-Change From Baseline Immunoglobulin G Levels at End of Treatment (EOT)Baseline and End of Treatment (Month 7)This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 1: Percentage of Participants With Low and High ATA Titer ValuesUp to 6 monthsHigh ATA titer was defined as participants who have at least one postbaseline ATA titer less than (\>) 25. Low ATA titer was defined as participants whose postbaseline ATA titer are all less than or equal to (\<=) 25. This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.
Phase 2: Percentage of Participants With Low and High ATA Titer ValuesUp to 6 monthsHigh ATA titer was defined as participants who have at least one postbaseline ATA titer \>25. Low ATA titer was defined as participants whose postbaseline ATA titer are all \<=25. This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 1: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsCycle 1 and 3: Days 1 and 15 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.
Phase 1: Mean AUC 0-15d of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsCycle 1 and 3: Days 1 and 15 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.
Phase 1: Percentage of Participants Achieving CR Per IRF Assessment Per IWG Criteria in ATA Positive and ATA Negative ParticipantsUp to 24 monthsCR was defined as the disappearance of all evidence of disease as assessed by IRF as per IWG Criteria. The data is reported per ATA status as categories. This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.
Phase 1: Mean Maximum Observed Serum Concentration (Cmax) of Brentuximab Vedotin Total Conjugated and Therapeutic Antibody (TAb)Days 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.
Phase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsCycle 1-3: Days 1 and 15 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Percentage of Participants Achieving CR Per IRF Assessment Per IWG Criteria in ATA Positive and ATA Negative ParticipantsUp to 24 monthsCR is defined as the disappearance of all evidence of disease as assessed by IRF as per IWG Criteria. This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Number of ATA Positive and ATA Negative Participants With AEs and SAEsUp to 24 monthsThis outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Immune Reconstitution-Change From Baseline in Immunoglobulin M at the End of Treatment (EOT)Baseline, EOT [Month 7]This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Immune Reconstitution-Change From Baseline in Immunoglobulin A at EOTBaseline, EOT [Month 7]This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Immune Reconstitution-Change From Baseline in Tetanus at EOTBaseline, EOT [Month 7]This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Immune Reconstitution-Change From Baseline in Haemophilus Influenzae B Antibody, IgG at EOTBaseline, EOT [Month 7]This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Immune Reconstitution-Change From Baseline Poliovirus Antibodies Ratio at EOTBaseline, EOT [Month 7]This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Immune Reconstitution-Change From Baseline Total Immunoglobulin at EOTBaseline, EOT [Month 7]This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Immune Reconstitution-Change From Baseline in Peripheral Blood CD34+A at EOTBaseline, EOT [Month 7]This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Immune Reconstitution-Change From Baseline in Total Lymphocyte Count at EOTBaseline, EOT [Month 7]This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTBaseline, EOT [Month 7]This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTBaseline, EOT [Month 7]This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsCycle 1-3: Days 1 and 15 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.
Phase 1: Mean Maximum Observed Plasma Concentration (Cmax) of Monomethyl Auristatin E (MMAE)Days 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.
Phase 1: Mean Area Under the Serum Concentration-Time Curve From Day 0 to Day 15 (AUC0-15) of Brentuximab Vedotin and TAbDays 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.
Phase 1: Mean Area Under the Plasma Concentration-Time Curve From Day 0 to Day 15 (AUC0-15) of MMAEDays 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.
Phase 1: Median Time to Reach Cmax (Tmax) of Brentuximab Vedotin and TAb in SerumCycle 1-6: Days 1 and 15 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.
Phase 1: Median Time to Reach Cmax (Tmax) of MMAE in PlasmaDays 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.
Phase 1: Percentage of Participants Who Achieved a CR Per IRF Assessment Per IWG Criteria at EOT VisitAt EOT visit 30 days after the last dose of study drug (at Month 7)CR was defined as the disappearance of all evidence of disease as assessed by IRF as per IWG Criteria. The confidence interval was based on exact binomial distribution (Clopper-Pearson method). This outcome measure was planned to be assessed only for participants treated in Phase 1 arm.
Phase 1: Percentage of Participants Who Achieved a PR Per IRF Assessment Per IWG Criteria at EOT VisitAt EOT visit 30 days after the last dose of study drug (at Month 7)PR was defined as regression of measurable disease and no new diseases as per IWG Criteria based on IRF. The confidence interval was based on exact binomial distribution (Clopper-Pearson method). This outcome measure was planned to be assessed only for participants treated in Phase 1 arm.

Countries

Brazil, Italy, Japan, United States

Participant flow

Recruitment details

Participants with advanced stage newly diagnosed, classical CD30+ Hodgkin Lymphoma (HL) took part in the study at 14 investigative sites in the United States, Italy, Brazil and Japan from 06 September 2017 to data cut-off date: 24 September 2021. This study is ongoing for Post-Treatment Follow-Up (which includes Progression-Free Survival Follow-Up \[PFSFU\] and Overall Survival Follow-Up \[OSFU\]) and optional Long-Term Safety Follow-up.

Pre-assignment details

Participants with advanced stage newly diagnosed, classical CD30+ HL received brentuximab vedotin 48 mg/m\^2 in combination with doxorubicin, vinblastine, and dacarbazine(A+AVD). Data for Phase 2 endpoints is reported for participants enrolled in Phase 2 only and for all treated in Phase 2, including Phase 1 participants.

Participants by arm

ArmCount
Phase 1: Brentuximab Vedotin 48 mg/m^2 + AVD
Brentuximab vedotin 48 mg/m\^2 (A), intravenous infusion, once on Days 1 and 15 of each 28-day cycle approximately 1 hour after administration of doxorubicin 25 mg/m\^2, vinblastine 6 mg/m\^2, and dacarbazine 375 mg/m\^2 (AVD), intravenous infusion, once on Days 1 and 15 of each 28-day cycle for up to 6 cycles.
8
Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVD
Brentuximab vedotin 48 mg/m\^2 (A), intravenous infusion, once on Days 1 and 15 of each 28-day cycle approximately 1 hour after administration of doxorubicin 25 mg/m\^2, vinblastine 6 mg/m\^2, and dacarbazine 375 mg/m\^2 (AVD), intravenous infusion, once on Days 1 and 15 of each 28-day cycle for up to 6 cycles.
51
Total59

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyParticpants Ongoing in Long-Term Safety Follow-Up823
Overall StudyPost-Treatment Follow-up (PFSFU and OSFU)028

Baseline characteristics

CharacteristicPhase 2: Brentuximab Vedotin 48 mg/m^2 + AVDTotalPhase 1: Brentuximab Vedotin 48 mg/m^2 + AVD
Age, Continuous13.9 years
STANDARD_DEVIATION 2.88
13.7 years
STANDARD_DEVIATION 3.03
12.4 years
STANDARD_DEVIATION 3.81
Ethnicity (NIH/OMB)
Hispanic or Latino
21 Participants23 Participants2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
26 Participants32 Participants6 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
4 Participants4 Participants0 Participants
Race/Ethnicity, Customized
Asian
3 Participants3 Participants0 Participants
Race/Ethnicity, Customized
Black or African American
12 Participants12 Participants0 Participants
Race/Ethnicity, Customized
Brown or Mulatto
9 Participants9 Participants0 Participants
Race/Ethnicity, Customized
Unknown or Not Reported
1 Participants1 Participants0 Participants
Race/Ethnicity, Customized
White
26 Participants34 Participants8 Participants
Region of Enrollment
Brazil
29 Participants30 Participants1 Participants
Region of Enrollment
Italy
10 Participants15 Participants5 Participants
Region of Enrollment
Japan
2 Participants2 Participants0 Participants
Region of Enrollment
United States
10 Participants12 Participants2 Participants
Sex: Female, Male
Female
24 Participants28 Participants4 Participants
Sex: Female, Male
Male
27 Participants31 Participants4 Participants
Weight49.91 kilograms (kg)
STANDARD_DEVIATION 15.649
49.37 kilograms (kg)
STANDARD_DEVIATION 16
45.91 kilograms (kg)
STANDARD_DEVIATION 18.867

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 80 / 51
other
Total, other adverse events
8 / 851 / 51
serious
Total, serious adverse events
1 / 823 / 51

Outcome results

Primary

Phase 1: Percentage of Participants Who Experienced Adverse Events (AEs) From the First Dose of Protocol Therapy Through 30 Days After Administration of the Last Dose of Protocol Therapy

AE means any untoward medical occurrence in a participant administered a pharmaceutical product; the untoward medical occurrence does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product whether or not it is related to the medicinal product. This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.

Time frame: From first dose in Cycle 1 Day 1 until 30 days after the last dose of study drug in Cycle 6 Day 15 (up to Cycle 7 Day 15) (Cycle length=28 days)

Population: The safety population included participants who had received at least 1 dose of any study drug (A+AVD regimen).

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Percentage of Participants Who Experienced Adverse Events (AEs) From the First Dose of Protocol Therapy Through 30 Days After Administration of the Last Dose of Protocol Therapy100 percentage of participants
Primary

Phase 1: Percentage of Participants Who Experienced Serious Adverse Events (SAEs) From the First Dose of Protocol Therapy Through 30 Days After Administration of the Last Dose of Protocol Therapy

AE means any untoward medical occurrence in a participant administered a pharmaceutical product; the untoward medical occurrence does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product whether or not it is related to the medicinal product. SAE is defined as any untoward medical occurrence that at any dose results in death, Is life-threatening, requires inpatient hospitalization or prolongation of an existing hospitalization, results in persistent or significant disability or incapacity, Is a congenital anomaly/birth defect, Is a medically important event.

Time frame: From first dose in Cycle 1 Day 1 until 30 days after the last dose of study drug in Cycle 6 Day 15 (up to Cycle 7 Day 15) (Cycle length=28 days)

Population: The safety population included participants who had received at least 1 dose of any study drug (A+AVD regimen).

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Percentage of Participants Who Experienced Serious Adverse Events (SAEs) From the First Dose of Protocol Therapy Through 30 Days After Administration of the Last Dose of Protocol Therapy13 percentage of participants
Primary

Phase 1: Recommended Dose of Brentuximab Vedotin in Combination With Doxorubicin, Vinblastine, and Dacarbazine in a Pediatric Population

The recommended dose was determined after considering all safety data in phase 1 and assessing for dose limiting toxicities (DLTs) which are defined as the dose range at which less than or equal to (\<=) 1 of 6 evaluable participants experience DLT within the defined observation period (Cycle 1 + 28 days). This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.

Time frame: From the first dose (Cycle 1) up to Day 56 (Cycle length=28 days)

Population: The DLT-evaluable population included participants who had received at least 1 dose of study drug therapy and experienced a DLT or no DLT during the DLT observation period. Participants who received granulocyte colony stimulating factor (G-CSF) during the DLT observation period were excluded from the DLT-Evaluable Population.

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Recommended Dose of Brentuximab Vedotin in Combination With Doxorubicin, Vinblastine, and Dacarbazine in a Pediatric Population48 mg/m^2
Primary

Phase 2: Percentage of Participants Who Achieved a Complete Remission (CR) Per Independent Review Facility (IRF) Assessment Per International Working Group (IWG) Criteria at End of Treatment (EOT) Visit

CR was defined as the disappearance of all evidence of disease as assessed by IRF as per IWG Criteria. The confidence interval was based on exact binomial distribution (Clopper-Pearson method). This outcome measure was planned to be assessed for all participants treated at the recommended dose in Phase 2. As prespecified in the statistical analysis plan (SAP) , data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: At end of treatment (EOT) visit 30 days after the last dose of study drug (at Month 7)

Population: Response-evaluable population included participants who received at least one dose of study drug, have measurable disease at baseline, and have at least one post-baseline disease assessment based on an independent review facility.

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Percentage of Participants Who Achieved a Complete Remission (CR) Per Independent Review Facility (IRF) Assessment Per International Working Group (IWG) Criteria at End of Treatment (EOT) Visit75 percentage of participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Percentage of Participants Who Achieved a Complete Remission (CR) Per Independent Review Facility (IRF) Assessment Per International Working Group (IWG) Criteria at End of Treatment (EOT) Visit76 percentage of participants
Primary

Phase 2: Percentage of Participants Who Achieved an Overall Response Rate (ORR) Per IRF Assessment Per IWG Criteria at EOT Visit

Overall response rate was defined as the percentage of participants with CR or PR as assessed by IRF using IWG criteria. CR was defined as the disappearance of all evidence of disease and PR was defined as regression of measurable disease and no new diseases. The confidence interval was based on exact binomial distribution (Clopper-Pearson method). This outcome measure was planned to be assessed for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: At EOT visit 30 days after the last dose of study drug (at Month 7)

Population: Response-evaluable population included participants who received at least one dose of study drug, have measurable disease at baseline, and have at least one post-baseline disease assessment based on an independent review facility.

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Percentage of Participants Who Achieved an Overall Response Rate (ORR) Per IRF Assessment Per IWG Criteria at EOT Visit86 percentage of participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Percentage of Participants Who Achieved an Overall Response Rate (ORR) Per IRF Assessment Per IWG Criteria at EOT Visit88 percentage of participants
Primary

Phase 2: Percentage of Participants Who Achieved a Partial Remission (PR) Per IRF Assessment Per IWG Criteria at EOT Visit

PR was defined as regression of measurable disease and no new sites as assessed by IRF as per IWG criteria. Percentage of participants in the response-evaluable population who achieved a partial response based on the IRF assessment at the EOT visit based on the IWG criteria are reported. The confidence interval was based on exact binomial distribution (Clopper-Pearson method). This outcome measure was planned to be assessed for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: At EOT visit 30 days after the last dose of study drug (at Month 7)

Population: Response-evaluable population included participants who received at least one dose of study drug, have measurable disease at baseline, and have at least one post-baseline disease assessment based on an independent review facility.

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Percentage of Participants Who Achieved a Partial Remission (PR) Per IRF Assessment Per IWG Criteria at EOT Visit12 percentage of participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Percentage of Participants Who Achieved a Partial Remission (PR) Per IRF Assessment Per IWG Criteria at EOT Visit12 percentage of participants
Primary

Phase 2: Percentage of Participants Whose Disease Was Positron Emission Tomography (PET) Negative After 2 Cycles of Protocol Therapy Per IRF Assessment

The Deauville score according to IRF assessment of response was used to evaluate the results of PET scans. PET negative after Cycle 2 was defined as an IRF Deauville score of (1 or 2 or 3). This outcome measure was planned to be assessed for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: From first dose of study drug up to Cycle 2 Day 25 (Each Cycle length=28 days)

Population: Response-evaluable population included participants who received at least one dose of study drug, have measurable disease at baseline, and have at least one post-baseline disease assessment based on an independent review facility.

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Percentage of Participants Whose Disease Was Positron Emission Tomography (PET) Negative After 2 Cycles of Protocol Therapy Per IRF Assessment90 percentage of participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Percentage of Participants Whose Disease Was Positron Emission Tomography (PET) Negative After 2 Cycles of Protocol Therapy Per IRF Assessment90 percentage of participants
Primary

Phase 2: Percentage of Participants Who Were Able to Complete 6 Cycles of Protocol Therapy at the Recommended Dose

This outcome measure was planned to be assessed for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: From first dose of study drug up to Cycle 6 (Each Cycle length=28 days)

Population: The safety population included participants who had received at least 1 dose of any study drug (A+AVD regimen).

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Percentage of Participants Who Were Able to Complete 6 Cycles of Protocol Therapy at the Recommended Dose100 percentage of participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Percentage of Participants Who Were Able to Complete 6 Cycles of Protocol Therapy at the Recommended Dose100 percentage of participants
Secondary

Phase 1: Mean Area Under the Plasma Concentration-Time Curve From Day 0 to Day 15 (AUC0-15) of MMAE

This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.

Time frame: Days 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)

Population: The PK population included participants with sufficient data to enable calculation of at least 1 PK parameter, with data available for analyses. Number analyzed is number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Area Under the Plasma Concentration-Time Curve From Day 0 to Day 15 (AUC0-15) of MMAECycle 1 Day 129.8 day* nanogram per milliliter (day*ng/mL)Standard Deviation 21.2
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Area Under the Plasma Concentration-Time Curve From Day 0 to Day 15 (AUC0-15) of MMAECycle 1 Day 1513.1 day* nanogram per milliliter (day*ng/mL)Standard Deviation 2.99
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Area Under the Plasma Concentration-Time Curve From Day 0 to Day 15 (AUC0-15) of MMAECycle 3 Day 18.88 day* nanogram per milliliter (day*ng/mL)Standard Deviation 2.53
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Area Under the Plasma Concentration-Time Curve From Day 0 to Day 15 (AUC0-15) of MMAECycle 3 Day 157.17 day* nanogram per milliliter (day*ng/mL)Standard Deviation 2.17
Secondary

Phase 1: Mean Area Under the Serum Concentration-Time Curve From Day 0 to Day 15 (AUC0-15) of Brentuximab Vedotin and TAb

This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.

Time frame: Days 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)

Population: The PK population included participants with sufficient data to enable calculation of at least 1 PK parameter, with data available for analyses. Number analyzed is number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Area Under the Serum Concentration-Time Curve From Day 0 to Day 15 (AUC0-15) of Brentuximab Vedotin and TAbAUC0-15d of Brentuximab Vedotin at Cycle 1 Day 142.3 day*microgram per milliliter(day*mcg/mL)Standard Deviation 3.1
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Area Under the Serum Concentration-Time Curve From Day 0 to Day 15 (AUC0-15) of Brentuximab Vedotin and TAbAUC0-15d of Brentuximab Vedotin at Cycle 1 Day 1548.8 day*microgram per milliliter(day*mcg/mL)Standard Deviation 5.83
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Area Under the Serum Concentration-Time Curve From Day 0 to Day 15 (AUC0-15) of Brentuximab Vedotin and TAbAUC0-15d of Brentuximab Vedotin at Cycle 3 Day 172.7 day*microgram per milliliter(day*mcg/mL)Standard Deviation 27.8
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Area Under the Serum Concentration-Time Curve From Day 0 to Day 15 (AUC0-15) of Brentuximab Vedotin and TAbAUC0-15d of Brentuximab Vedotin at Cycle 3 Day 1564.8 day*microgram per milliliter(day*mcg/mL)Standard Deviation 13.5
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Area Under the Serum Concentration-Time Curve From Day 0 to Day 15 (AUC0-15) of Brentuximab Vedotin and TAbAUC0-15d of TAb at Cycle 1 Day 180.6 day*microgram per milliliter(day*mcg/mL)Standard Deviation 13
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Area Under the Serum Concentration-Time Curve From Day 0 to Day 15 (AUC0-15) of Brentuximab Vedotin and TAbAUC0-15d of TAb at Cycle 1 Day 15103 day*microgram per milliliter(day*mcg/mL)Standard Deviation 14.6
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Area Under the Serum Concentration-Time Curve From Day 0 to Day 15 (AUC0-15) of Brentuximab Vedotin and TAbAUC0-15d of TAb at Cycle 3 Day 1127 day*microgram per milliliter(day*mcg/mL)Standard Deviation 10.2
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Area Under the Serum Concentration-Time Curve From Day 0 to Day 15 (AUC0-15) of Brentuximab Vedotin and TAbAUC0-15d of TAb at Cycle 3 Day 15128 day*microgram per milliliter(day*mcg/mL)Standard Deviation 34.4
Secondary

Phase 1: Mean AUC 0-15d of Brentuximab Vedotin in ATA Positive and ATA Negative Participants

This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.

Time frame: Cycle 1 and 3: Days 1 and 15 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)

Population: The PK population included participants with sufficient data to enable calculation of at least 1 PK parameter. Number analyzed is number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean AUC 0-15d of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 1 Day 142.4 day*µg/mL
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean AUC 0-15d of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 1 Day 1550.0 day*µg/mL
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean AUC 0-15d of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 3 Day 156.6 day*µg/mL
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean AUC 0-15d of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 3 Day 1563.0 day*µg/mL
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean AUC 0-15d of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 1 Day 142.2 day*µg/mLStandard Deviation 3.4
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean AUC 0-15d of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 1 Day 1548.6 day*µg/mLStandard Deviation 6.48
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean AUC 0-15d of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 3 Day 175.4 day*µg/mLStandard Deviation 29.46
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean AUC 0-15d of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 3 Day 1565.1 day*µg/mLStandard Deviation 15.06
Secondary

Phase 1: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative Participants

This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.

Time frame: Cycle 1 and 3: Days 1 and 15 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)

Population: The PK population included participants with sufficient data to enable calculation of at least 1 PK parameter. Number analyzed is number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 1 Day 123.3 µg/mL
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 1 Day 1521.1 µg/mL
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 3 Day 123.1 µg/mL
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 3 Day 1521.6 µg/mL
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 1 Day 122.5 µg/mLStandard Deviation 1.62
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 1 Day 1523.5 µg/mLStandard Deviation 4.17
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 3 Day 127.2 µg/mLStandard Deviation 3.62
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 3 Day 1528.3 µg/mLStandard Deviation 7.32
Secondary

Phase 1: Mean Maximum Observed Plasma Concentration (Cmax) of Monomethyl Auristatin E (MMAE)

This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.

Time frame: Days 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)

Population: The PK population included participants with sufficient data to enable calculation of at least 1 PK parameter. Number analyzed is number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Maximum Observed Plasma Concentration (Cmax) of Monomethyl Auristatin E (MMAE)Cycle 1 Day 15.51 nanogram per milliliter (ng/ml)Standard Deviation 3.91
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Maximum Observed Plasma Concentration (Cmax) of Monomethyl Auristatin E (MMAE)Cycle 1 Day 152.08 nanogram per milliliter (ng/ml)Standard Deviation 0.677
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Maximum Observed Plasma Concentration (Cmax) of Monomethyl Auristatin E (MMAE)Cycle 3 Day 11.38 nanogram per milliliter (ng/ml)Standard Deviation 0.514
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Maximum Observed Plasma Concentration (Cmax) of Monomethyl Auristatin E (MMAE)Cycle 3 Day 151.19 nanogram per milliliter (ng/ml)Standard Deviation 0.366
Secondary

Phase 1: Mean Maximum Observed Serum Concentration (Cmax) of Brentuximab Vedotin Total Conjugated and Therapeutic Antibody (TAb)

This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.

Time frame: Days 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)

Population: The PK population included participants with sufficient data to enable calculation of at least 1 PK parameter. Number analyzed is number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Maximum Observed Serum Concentration (Cmax) of Brentuximab Vedotin Total Conjugated and Therapeutic Antibody (TAb)Conjugate Brentuximab Vedotin at Cycle 1 Day 122.6 microgram per milliliter(mcg/mL)Standard Deviation 1.51
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Maximum Observed Serum Concentration (Cmax) of Brentuximab Vedotin Total Conjugated and Therapeutic Antibody (TAb)Conjugate Brentuximab Vedotin at Cycle 1 Day 1523.1 microgram per milliliter(mcg/mL)Standard Deviation 3.85
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Maximum Observed Serum Concentration (Cmax) of Brentuximab Vedotin Total Conjugated and Therapeutic Antibody (TAb)Conjugate Brentuximab Vedotin at Cycle 3 Day 126.7 microgram per milliliter(mcg/mL)Standard Deviation 3.65
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Maximum Observed Serum Concentration (Cmax) of Brentuximab Vedotin Total Conjugated and Therapeutic Antibody (TAb)Conjugate Brentuximab Vedotin at Cycle 3 Day 1527.3 microgram per milliliter(mcg/mL)Standard Deviation 7.14
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Maximum Observed Serum Concentration (Cmax) of Brentuximab Vedotin Total Conjugated and Therapeutic Antibody (TAb)TAb at Cycle 1 Day 124.9 microgram per milliliter(mcg/mL)Standard Deviation 3.84
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Maximum Observed Serum Concentration (Cmax) of Brentuximab Vedotin Total Conjugated and Therapeutic Antibody (TAb)TAb at Cycle 1 Day 1525.5 microgram per milliliter(mcg/mL)Standard Deviation 5.28
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Maximum Observed Serum Concentration (Cmax) of Brentuximab Vedotin Total Conjugated and Therapeutic Antibody (TAb)TAb at Cycle 3 Day 129.6 microgram per milliliter(mcg/mL)Standard Deviation 4.05
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Mean Maximum Observed Serum Concentration (Cmax) of Brentuximab Vedotin Total Conjugated and Therapeutic Antibody (TAb)TAb at Cycle 3 Day 1528.1 microgram per milliliter(mcg/mL)Standard Deviation 7.45
Secondary

Phase 1: Median Time to Reach Cmax (Tmax) of Brentuximab Vedotin and TAb in Serum

This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.

Time frame: Cycle 1-6: Days 1 and 15 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)

Population: The PK population included participants with sufficient data to enable calculation of at least 1 PK parameter, with data available for analyses.

ArmMeasureGroupValue (MEDIAN)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Median Time to Reach Cmax (Tmax) of Brentuximab Vedotin and TAb in SerumTmax of TAb at Cycle 1 Day 11.00 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Median Time to Reach Cmax (Tmax) of Brentuximab Vedotin and TAb in SerumTmax of Brentuximab Vedotin at Cycle 1 Day 11.00 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Median Time to Reach Cmax (Tmax) of Brentuximab Vedotin and TAb in SerumTmax of Brentuximab Vedotin at Cycle 1 Day 150.915 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Median Time to Reach Cmax (Tmax) of Brentuximab Vedotin and TAb in SerumTmax of Brentuximab Vedotin at Cycle 3 Day 11.00 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Median Time to Reach Cmax (Tmax) of Brentuximab Vedotin and TAb in SerumTmax of Brentuximab Vedotin at Cycle 3 Day 150.830 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Median Time to Reach Cmax (Tmax) of Brentuximab Vedotin and TAb in SerumTmax of TAb at Cycle 1 Day 150.915 hour
Secondary

Phase 1: Median Time to Reach Cmax (Tmax) of MMAE in Plasma

This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.

Time frame: Days 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)

Population: The PK population included participants with sufficient data to enable calculation of at least 1 PK parameter. Number analyzed is number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEDIAN)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Median Time to Reach Cmax (Tmax) of MMAE in PlasmaCycle 1 Day 144.9 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Median Time to Reach Cmax (Tmax) of MMAE in PlasmaCycle 1 Day 1543.1 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Median Time to Reach Cmax (Tmax) of MMAE in PlasmaCycle 3 Day 148.0 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Median Time to Reach Cmax (Tmax) of MMAE in PlasmaCycle 3 Day 1548.2 hour
Secondary

Phase 1: Number of ATA Positive and ATA Negative Participants With AEs and SAEs

This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.

Time frame: Up to 24 months

Population: The Safety Population included participants who received at least 1 dose of any drug in the A+AVD regimen, with data available for analyses. Data is reported as per ATA positive and negative status.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Number of ATA Positive and ATA Negative Participants With AEs and SAEsATA Negative: AEs7 Participants
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Number of ATA Positive and ATA Negative Participants With AEs and SAEsATA Positive: AEs1 Participants
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Number of ATA Positive and ATA Negative Participants With AEs and SAEsATA Negative: SAEs0 Participants
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Number of ATA Positive and ATA Negative Participants With AEs and SAEsATA Positive: SAEs1 Participants
Secondary

Phase 1: Percentage of Participants Achieving CR Per IRF Assessment Per IWG Criteria in ATA Positive and ATA Negative Participants

CR was defined as the disappearance of all evidence of disease as assessed by IRF as per IWG Criteria. The data is reported per ATA status as categories. This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.

Time frame: Up to 24 months

Population: Immunogenicity population included participants who received at least 1 dose of study drug and had the baseline immunogenicity sample and at least 1 postbaseline immunogenicity sample assessment.

ArmMeasureGroupValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Percentage of Participants Achieving CR Per IRF Assessment Per IWG Criteria in ATA Positive and ATA Negative ParticipantsATA Negative who Achieved CR86 percentage of participants
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Percentage of Participants Achieving CR Per IRF Assessment Per IWG Criteria in ATA Positive and ATA Negative ParticipantsTransiently ATA Positive who Achieved CR100 percentage of participants
Secondary

Phase 1: Percentage of Participants Who Achieved a CR Per IRF Assessment Per IWG Criteria at EOT Visit

CR was defined as the disappearance of all evidence of disease as assessed by IRF as per IWG Criteria. The confidence interval was based on exact binomial distribution (Clopper-Pearson method). This outcome measure was planned to be assessed only for participants treated in Phase 1 arm.

Time frame: At EOT visit 30 days after the last dose of study drug (at Month 7)

Population: Response-evaluable population included participants who received at least one dose of study drug, have measurable disease at baseline, and have at least one post-baseline disease assessment based on an independent review facility.

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Percentage of Participants Who Achieved a CR Per IRF Assessment Per IWG Criteria at EOT Visit88 percentage of participants
Secondary

Phase 1: Percentage of Participants Who Achieved an ORR Per IRF Assessment Per IWG Criteria at EOT Visit

Overall response rate was defined as the percentage of participants with CR or PR as assessed by an IRF using IWG Revised Response Criteria. CR was defined as the disappearance of all evidence of disease and PR was defined as regression of measurable disease and no new sites. The confidence interval was based on exact binomial distribution (Clopper-Pearson method). This outcome measure was planned to be assessed only for participants treated in Phase 1 arm.

Time frame: At EOT visit 30 days after the last dose of study drug (at Month 7)

Population: Response-evaluable population included participants who received at least one dose of study drug, have measurable disease at baseline, and have at least one post-baseline disease assessment based on an independent review facility.

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Percentage of Participants Who Achieved an ORR Per IRF Assessment Per IWG Criteria at EOT Visit100 percentage of participants
Secondary

Phase 1: Percentage of Participants Who Achieved a PR Per IRF Assessment Per IWG Criteria at EOT Visit

PR was defined as regression of measurable disease and no new diseases as per IWG Criteria based on IRF. The confidence interval was based on exact binomial distribution (Clopper-Pearson method). This outcome measure was planned to be assessed only for participants treated in Phase 1 arm.

Time frame: At EOT visit 30 days after the last dose of study drug (at Month 7)

Population: Response-evaluable population included participants who received at least one dose of study drug, have measurable disease at baseline, and have at least one post-baseline disease assessment based on an independent review facility.

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Percentage of Participants Who Achieved a PR Per IRF Assessment Per IWG Criteria at EOT Visit13 percentage of participants
Secondary

Phase 1: Percentage of Participants Whose Disease Was PET Negative After 2 Cycles of Protocol Therapy Per IRF Assessment

The Deauville score according to IRF assessment of response was used to evaluate the results of PET scans. PET negative after Cycle 2 was defined as an IRF Deauville score of (1 or 2 or 3). This outcome measure was planned to be assessed only for participants treated in Phase 1 arm.

Time frame: From first dose of study drug up to Cycle 2 (Each Cycle length=28 days)

Population: Response-evaluable population included participants who received at least one dose of study drug, have measurable disease at baseline, and have at least one post-baseline disease assessment based on an independent review facility.

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Percentage of Participants Whose Disease Was PET Negative After 2 Cycles of Protocol Therapy Per IRF Assessment88 percentage of participants
Secondary

Phase 1: Percentage of Participants Whose Disease Was PET Positive After 6 Cycles of Protocol Therapy Per IRF Assessment

The Deauville score according to IRF assessment of response was used to evaluate the results of PET scans. PET positive after Cycle 6 defined as an IRF Deauville score of (4 or 5). This outcome measure was planned to be assessed only for participants treated in Phase 1 arm.

Time frame: From first dose of study drug up to Cycle 6 (Each Cycle length=28 days)

Population: This outcome measure was planned to be assessed only for participants treated in Phase 1 arm.

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Percentage of Participants Whose Disease Was PET Positive After 6 Cycles of Protocol Therapy Per IRF Assessment13 percentage of participants
Secondary

Phase 1: Percentage of Participants Who Were Antitherapeutic Antibody (ATA) Positive, Persistently Positive or Transiently Positive, and Neutralizing Antitherapeutic Antibody (nATA) Positive

ATA positive was defined as participants who have a positive ATA in any postbaseline sample. Transiently ATA positive was defined as participants who have positive ATA in 1 or 2 postbaseline samples. Persistently ATA positive was defined as participants who have positive ATA in more than 2 postbaseline timepoints. Transiently ATA positive was defined as participants who have positive ATA in 1 or 2 postbaseline samples. nATA positive was defined as participants who have at least one positive nATA in any postbaseline ATA positive sample. Here, percentage of participants who were transiently or persistently ATA positive are considered as ATA positive. This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.

Time frame: Up to 7 months

Population: Immunogenicity population included participants who received at least 1 dose of study drug and had the baseline immunogenicity sample and at least 1 postbaseline immunogenicity sample assessment.

ArmMeasureGroupValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Percentage of Participants Who Were Antitherapeutic Antibody (ATA) Positive, Persistently Positive or Transiently Positive, and Neutralizing Antitherapeutic Antibody (nATA) PositiveTransiently ATA Positive13 percentage of participants
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Percentage of Participants Who Were Antitherapeutic Antibody (ATA) Positive, Persistently Positive or Transiently Positive, and Neutralizing Antitherapeutic Antibody (nATA) PositivePersistently ATA Positive0 percentage of participants
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Percentage of Participants Who Were Antitherapeutic Antibody (ATA) Positive, Persistently Positive or Transiently Positive, and Neutralizing Antitherapeutic Antibody (nATA) PositivenATA Positive0 percentage of participants
Secondary

Phase 1: Percentage of Participants With Low and High ATA Titer Values

High ATA titer was defined as participants who have at least one postbaseline ATA titer less than (\>) 25. Low ATA titer was defined as participants whose postbaseline ATA titer are all less than or equal to (\<=) 25. This outcome measure is planned to be assessed only for participants treated in Phase 1 arm.

Time frame: Up to 6 months

Population: Immunogenicity population included participants who received at least 1 dose of study drug and had the baseline immunogenicity sample and at least 1 postbaseline immunogenicity sample assessment.

ArmMeasureGroupValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Percentage of Participants With Low and High ATA Titer ValuesATA Titer low13 percentage of participants
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 1: Percentage of Participants With Low and High ATA Titer ValuesATA Titer High0 percentage of participants
Secondary

Phase 2: Duration of Response (DOR)

DOR per IRF in participants with a response (CR or PR per IRF) was defined as the time from start of the first objective tumor response (CR or PR per IRF) to the first subsequent PD or death due to any cause, whichever occurred first. For patients who did not have an objective PD, did not die and are either still on a study follow-up at the time of the analysis, or were removed from the study prior to documentation of PD, DOR has been censored on the date of last adequate disease assessment. This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Up to 24 months

Population: Response Evaluable Population=Participants who received at least one dose of study drug, have measurable disease at baseline, and have at least one post-baseline disease assessment (assessments based on investigator assessments or assessments based on an independent review facility). For participants who do not have an objective PD and did not die at the last follow-up, DOR has been censored on the date of last adequate disease assessment.

ArmMeasureValue (MEDIAN)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Duration of Response (DOR)NA months
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Duration of Response (DOR)NA months
Secondary

Phase 2: Event-free Survival (EFS)

EFS:Time from first dose until any treatment failure:PD per IRF including progression events during follow-up period,failing to complete 6 cycles of treatment due to any reason or death due to any cause,whichever occurred first.EFS per IRF were censored on last adequate disease assessment date per IRF if none of above events occur during study.Participants with antitumor treatment,other than SCT/radiotherapy as part of frontline treatment were censored at last adequate disease assessment before initiation of such alternative treatment.If a participant experienced disease progression per IRF/died after initiation of antitumor treatment,other than SCT/radiotherapy,such participant was censored,and not be considered having EFS.This outcome measure was planned to be assessed for all patients treated at recommended dose in Phase 2.As prespecified in SAP,data for Phase 2 was summarized and reported in two arms:Phase 2 and Phase 1 + Phase 2.

Time frame: Up to 24 months

Population: The safety/efficacy population included participants who received at least 1 dose of any drug in the A+AVD regimen. For participants who do not have an objective PD and did not die at the last follow-up, EFS has been censored on the date of last adequate disease assessment.

ArmMeasureValue (MEDIAN)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Event-free Survival (EFS)NA months
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Event-free Survival (EFS)NA months
Secondary

Phase 2: Immune Reconstitution-Change From Baseline Immunoglobulin G Levels at End of Treatment (EOT)

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Baseline and End of Treatment (Month 7)

Population: Immune Reconstitution Population included participants who received at least 1 dose of study drug and had a sufficient immune reconstitution blood sampling to allow for immune reconstitution evaluation. Number analyzed= number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline Immunoglobulin G Levels at End of Treatment (EOT)Baseline16.518 g/LStandard Deviation 5.5306
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline Immunoglobulin G Levels at End of Treatment (EOT)Change from Baseline at EOT-4.822 g/LStandard Deviation 4.8964
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline Immunoglobulin G Levels at End of Treatment (EOT)Baseline16.217 g/LStandard Deviation 5.2175
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline Immunoglobulin G Levels at End of Treatment (EOT)Change from Baseline at EOT-4.675 g/LStandard Deviation 4.7204
Secondary

Phase 2: Immune Reconstitution-Change From Baseline in Haemophilus Influenzae B Antibody, IgG at EOT

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Baseline, EOT [Month 7]

Population: Immune Reconstitution Population included participants who received at least 1 dose of study drug and had a sufficient immune reconstitution blood sampling to allow for immune reconstitution evaluation. Overall number analyzed are the number of participants with data available for analyses. Number analyzed= number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in Haemophilus Influenzae B Antibody, IgG at EOTBaseline10.39 µg/mLStandard Deviation 27.017
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in Haemophilus Influenzae B Antibody, IgG at EOTChange from Baseline at EOT-7.00 µg/mLStandard Deviation 24.258
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in Haemophilus Influenzae B Antibody, IgG at EOTBaseline9.50 µg/mLStandard Deviation 25.167
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in Haemophilus Influenzae B Antibody, IgG at EOTChange from Baseline at EOT-6.03 µg/mLStandard Deviation 23.16
Secondary

Phase 2: Immune Reconstitution-Change From Baseline in Immunoglobulin A at EOT

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Baseline, EOT [Month 7]

Population: Immune Reconstitution Population included participants who received at least 1 dose of study drug and had a sufficient immune reconstitution blood sampling to allow for immune reconstitution evaluation. Overall number analyzed are the participants with data available for analyses. Number analyzed= number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in Immunoglobulin A at EOTChange from Baseline at EOT-0.195 g/LStandard Deviation 1.0479
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in Immunoglobulin A at EOTBaseline2.708 g/LStandard Deviation 1.2379
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in Immunoglobulin A at EOTChange from Baseline at EOT-0.125 g/LStandard Deviation 1.0844
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in Immunoglobulin A at EOTBaseline2.671 g/LStandard Deviation 1.1879
Secondary

Phase 2: Immune Reconstitution-Change From Baseline in Immunoglobulin M at the End of Treatment (EOT)

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Baseline, EOT [Month 7]

Population: Immune Reconstitution Population included participants who received at least 1 dose of study drug and had a sufficient immune reconstitution blood sampling to allow for immune reconstitution evaluation, with data available for analyses. Number analyzed is number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in Immunoglobulin M at the End of Treatment (EOT)Baseline1.275 g/LStandard Deviation 0.5065
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in Immunoglobulin M at the End of Treatment (EOT)Change at EOT (Month 7)-0.345 g/LStandard Deviation 0.5942
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in Immunoglobulin M at the End of Treatment (EOT)Baseline1.261 g/LStandard Deviation 0.4824
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in Immunoglobulin M at the End of Treatment (EOT)Change at EOT (Month 7)-0.375 g/LStandard Deviation 0.5766
Secondary

Phase 2: Immune Reconstitution-Change From Baseline in Peripheral Blood CD34+A at EOT

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Baseline, EOT [Month 7]

Population: Immune Reconstitution Population included participants who received at least 1 dose of study drug and had a sufficient immune reconstitution blood sampling to allow for immune reconstitution evaluation. Overall number analyzed are the number of participants with data available for analyses. Number analyzed= number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in Peripheral Blood CD34+A at EOTBaseline4.182 µLStandard Deviation 4.1227
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in Peripheral Blood CD34+A at EOTChange from Baseline at EOT-1.512 µLStandard Deviation 4.7075
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in Peripheral Blood CD34+A at EOTBaseline3.917 µLStandard Deviation 3.8917
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in Peripheral Blood CD34+A at EOTChange from Baseline at EOT-1.456 µLStandard Deviation 4.3472
Secondary

Phase 2: Immune Reconstitution-Change From Baseline in Tetanus at EOT

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Baseline, EOT [Month 7]

Population: Immune Reconstitution Population included participants who received at least 1 dose of study drug and had a sufficient immune reconstitution blood sampling to allow for immune reconstitution evaluation. Overall number analyzed are the number of participants with data available for analyses. Number analyzed =number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in Tetanus at EOTBaseline1.636 (IU)/mLStandard Deviation 2.56
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in Tetanus at EOTChange from Baseline at EOT-0.648 (IU)/mLStandard Deviation 1.3412
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in Tetanus at EOTBaseline1.935 (IU)/mLStandard Deviation 3.0358
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in Tetanus at EOTChange from Baseline at EOT-0.914 (IU)/mLStandard Deviation 2.2679
Secondary

Phase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOT

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Baseline, EOT [Month 7]

Population: Immune Reconstitution Population included participants who received at least 1 dose of study drug and had a sufficient immune reconstitution blood sampling to allow for immune reconstitution evaluation. Overall number analyzed are the number of participants with data available for analyses. Number analyzed= number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTBaseline: CD4+CD45RA-CD197-28.0 percentage of CD4+ subset cellsStandard Deviation 12.76
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTChange from Baseline at EOT: CD4+CD45RA-CD197--5.0 percentage of CD4+ subset cellsStandard Deviation 17.72
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTBaseline: CD4+CD45RA-CD197+23.7 percentage of CD4+ subset cellsStandard Deviation 14.33
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTChange from Baseline at EOT: CD4+CD45RA-CD197+13.0 percentage of CD4+ subset cellsStandard Deviation 14.14
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTBaseline: CD4+CD45RA+CD197-2.9 percentage of CD4+ subset cellsStandard Deviation 3.41
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTChange from Baseline at EOT: CD4+CD45RA+CD197--0.7 percentage of CD4+ subset cellsStandard Deviation 2.25
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTBaseline: CD4+CD45RA+CD197+46.2 percentage of CD4+ subset cellsStandard Deviation 14.44
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTChange from Baseline at EOT: CD4+CD45RA+CD197+-7.2 percentage of CD4+ subset cellsStandard Deviation 11.6
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTChange from Baseline at EOT: CD4+CD45RA+CD197+-6.8 percentage of CD4+ subset cellsStandard Deviation 11.04
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTBaseline: CD4+CD45RA-CD197-29.0 percentage of CD4+ subset cellsStandard Deviation 13.42
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTBaseline: CD4+CD45RA+CD197-3.1 percentage of CD4+ subset cellsStandard Deviation 3.22
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTChange from Baseline at EOT: CD4+CD45RA-CD197--5.1 percentage of CD4+ subset cellsStandard Deviation 16.44
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTBaseline: CD4+CD45RA+CD197+46.3 percentage of CD4+ subset cellsStandard Deviation 14.89
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTBaseline: CD4+CD45RA-CD197+22.3 percentage of CD4+ subset cellsStandard Deviation 13.86
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTChange from Baseline at EOT: CD4+CD45RA+CD197--0.7 percentage of CD4+ subset cellsStandard Deviation 2.41
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD4+ (CD4+CD45RA-CD197- and CD4+CD45RA+CD197+) Subset of Cells at EOTChange from Baseline at EOT: CD4+CD45RA-CD197+12.6 percentage of CD4+ subset cellsStandard Deviation 13.21
Secondary

Phase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOT

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Baseline, EOT [Month 7]

Population: Immune Reconstitution Population included participants who received at least 1 dose of study drug and had a sufficient immune reconstitution blood sampling to allow for immune reconstitution evaluation. Overall number analyzed are the number of participants with data available for analyses. Number analyzed= number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTBaseline: CD8+CD45RA+CD197-25.9 percentage of CD8+ subset cellsStandard Deviation 15.43
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTBaseline: CD8+CD45RA-CD197+2.4 percentage of CD8+ subset cellsStandard Deviation 1.81
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTChange from Baseline at EOT: CD8+CD45RA+CD197--6.0 percentage of CD8+ subset cellsStandard Deviation 11.27
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTBaseline: CD8+CD45RA-CD197-39.9 percentage of CD8+ subset cellsStandard Deviation 19.32
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTBaseline: CD8+CD45RA+CD197+31.3 percentage of CD8+ subset cellsStandard Deviation 18
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTChange from Baseline at EOT: CD8+CD45RA-CD197+1.6 percentage of CD8+ subset cellsStandard Deviation 2.52
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTChange from Baseline at EOT: CD8+CD45RA+CD197+15.7 percentage of CD8+ subset cellsStandard Deviation 11.48
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTChange from Baseline at EOT: CD8+CD45RA-CD197--11.5 percentage of CD8+ subset cellsStandard Deviation 13.85
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTChange from Baseline at EOT: CD8+CD45RA+CD197+15.4 percentage of CD8+ subset cellsStandard Deviation 12.15
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTChange from Baseline at EOT: CD8+CD45RA-CD197--11.0 percentage of CD8+ subset cellsStandard Deviation 14.33
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTBaseline: CD8+CD45RA-CD197+2.3 percentage of CD8+ subset cellsStandard Deviation 1.76
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTChange from Baseline at EOT: CD8+CD45RA-CD197+2.1 percentage of CD8+ subset cellsStandard Deviation 3.08
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTBaseline: CD8+CD45RA+CD197-25.8 percentage of CD8+ subset cellsStandard Deviation 14.6
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTChange from Baseline at EOT: CD8+CD45RA+CD197--6.5 percentage of CD8+ subset cellsStandard Deviation 11.83
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTBaseline: CD8+CD45RA+CD197+30.8 percentage of CD8+ subset cellsStandard Deviation 18.53
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in the Percentage of CD8+ (CD8+CD45RA-CD197- and CD8+CD45RA-CD197+) Subset of Cells at EOTBaseline: CD8+CD45RA-CD197-40.6 percentage of CD8+ subset cellsStandard Deviation 20
Secondary

Phase 2: Immune Reconstitution-Change From Baseline in Total Lymphocyte Count at EOT

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Baseline, EOT [Month 7]

Population: Immune Reconstitution Population included participants who received at least 1 dose of study drug and had a sufficient immune reconstitution blood sampling to allow for immune reconstitution evaluation.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in Total Lymphocyte Count at EOTBaseline1.8022 10^9 lymphocytes/LStandard Deviation 0.95206
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline in Total Lymphocyte Count at EOTChange from Baseline at EOT0.6736 10^9 lymphocytes/LStandard Deviation 3.77611
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in Total Lymphocyte Count at EOTBaseline1.7408 10^9 lymphocytes/LStandard Deviation 0.91394
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline in Total Lymphocyte Count at EOTChange from Baseline at EOT0.5965 10^9 lymphocytes/LStandard Deviation 3.50121
Secondary

Phase 2: Immune Reconstitution-Change From Baseline Poliovirus Antibodies Ratio at EOT

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Baseline, EOT [Month 7]

Population: Immune Reconstitution Population included participants who received at least 1 dose of study drug and had a sufficient immune reconstitution blood sampling to allow for immune reconstitution evaluation. Overall number analyzed are the number of participants with data available for analyses. Number analyzed= number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline Poliovirus Antibodies Ratio at EOTBaseline: Type I0.02447 ratioStandard Deviation 0.027568
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline Poliovirus Antibodies Ratio at EOTEOT: Type I0.00913 ratioStandard Deviation 0.024223
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline Poliovirus Antibodies Ratio at EOTBaseline: Type III0.03641 ratioStandard Deviation 0.036709
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline Poliovirus Antibodies Ratio at EOTEOT: Type III0.01141 ratioStandard Deviation 0.029889
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline Poliovirus Antibodies Ratio at EOTEOT: Type III0.01013 ratioStandard Deviation 0.028461
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline Poliovirus Antibodies Ratio at EOTBaseline: Type I0.02373 ratioStandard Deviation 0.028092
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline Poliovirus Antibodies Ratio at EOTBaseline: Type III0.03432 ratioStandard Deviation 0.036653
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline Poliovirus Antibodies Ratio at EOTEOT: Type I0.00845 ratioStandard Deviation 0.023091
Secondary

Phase 2: Immune Reconstitution-Change From Baseline Total Immunoglobulin at EOT

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Baseline, EOT [Month 7]

Population: Immune Reconstitution Population included participants who received at least 1 dose of study drug and had a sufficient immune reconstitution blood sampling to allow for immune reconstitution evaluation. Overall number analyzed are the number of participants with data available for analyses. Number analyzed= number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline Total Immunoglobulin at EOTBaseline2086.6 mg/dlStandard Deviation 615.62
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Immune Reconstitution-Change From Baseline Total Immunoglobulin at EOTChange from Baseline at EOT-582.3 mg/dlStandard Deviation 565.52
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline Total Immunoglobulin at EOTBaseline2045.1 mg/dlStandard Deviation 583.04
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Immune Reconstitution-Change From Baseline Total Immunoglobulin at EOTChange from Baseline at EOT-556.3 mg/dlStandard Deviation 553.97
Secondary

Phase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative Participants

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Cycle 1-3: Days 1 and 15 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)

Population: The PK population included participants with sufficient data to enable calculation of at least 1 PK parameter. Number analyzed is number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 1 Day 151.6 day*µg/mLStandard Deviation 17.17
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 1 Day 1545.6 day*µg/mLStandard Deviation 38.87
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 3 Day 153.7 day*µg/mLStandard Deviation 10.16
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 3 Day 1557.2 day*µg/mLStandard Deviation 12.37
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 1 Day 149.6 day*µg/mLStandard Deviation 17.41
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 1 Day 1555.8 day*µg/mLStandard Deviation 20.77
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 3 Day 163.0 day*µg/mLStandard Deviation 17.1
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 3 Day 1560.9 day*µg/mLStandard Deviation 11.23
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 3 Day 1561.7 day*µg/mLStandard Deviation 11.81
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 1 Day 149.3 day*µg/mLStandard Deviation 14.75
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 1 Day 148.8 day*µg/mLStandard Deviation 16.58
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 1 Day 1546.7 day*µg/mLStandard Deviation 31.81
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 3 Day 164.4 day*µg/mLStandard Deviation 18.99
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 3 Day 154.6 day*µg/mLStandard Deviation 7.38
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 1 Day 1554.8 day*µg/mLStandard Deviation 19.52
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean AUC 0-15 of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 3 Day 1559.1 day*µg/mLStandard Deviation 9.38
Secondary

Phase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative Participants

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Cycle 1-3: Days 1 and 15 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)

Population: The PK population included participants with sufficient data to enable calculation of at least 1 PK parameter. Number analyzed is number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 1 Day 127.8 µg/mLStandard Deviation 8.56
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 1 Day 1523.3 µg/mLStandard Deviation 6.88
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 3 Day 122.0 µg/mLStandard Deviation 2.92
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 3 Day 1525.6 µg/mLStandard Deviation 7.93
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 1 Day 122.8 µg/mLStandard Deviation 5.29
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 1 Day 1525.4 µg/mLStandard Deviation 5.02
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 3 Day 127.7 µg/mLStandard Deviation 6.14
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 3 Day 1525.4 µg/mLStandard Deviation 3.85
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 3 Day 1526.0 µg/mLStandard Deviation 4.76
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 1 Day 126.7 µg/mLStandard Deviation 7.34
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 1 Day 122.7 µg/mLStandard Deviation 5
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 1 Day 1522.7 µg/mLStandard Deviation 5.72
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 3 Day 127.6 µg/mLStandard Deviation 5.84
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 3 Day 122.4 µg/mLStandard Deviation 2.15
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Negative: Cycle 1 Day 1525.2 µg/mLStandard Deviation 4.91
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Cmax of Brentuximab Vedotin in ATA Positive and ATA Negative ParticipantsATA Positive: Cycle 3 Day 1524.2 µg/mLStandard Deviation 6.07
Secondary

Phase 2: Mean Plasma AUC0-15 of MMAE

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Days 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)

Population: The PK population included participants with sufficient data to enable calculation of at least 1 PK parameter, with data available for analyses. Number analyzed is number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Plasma AUC0-15 of MMAECycle 1 Day 131.2 day*ng/mLStandard Deviation 16.2
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Plasma AUC0-15 of MMAECycle 1 Day 1518.4 day*ng/mLStandard Deviation 11.9
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Plasma AUC0-15 of MMAECycle 3 Day 111.5 day*ng/mLStandard Deviation 5.16
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Plasma AUC0-15 of MMAECycle 3 Day 1512.3 day*ng/mLStandard Deviation 6.12
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Plasma AUC0-15 of MMAECycle 3 Day 1511.3 day*ng/mLStandard Deviation 5.9
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Plasma AUC0-15 of MMAECycle 1 Day 131.0 day*ng/mLStandard Deviation 16.8
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Plasma AUC0-15 of MMAECycle 3 Day 111.1 day*ng/mLStandard Deviation 4.93
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Plasma AUC0-15 of MMAECycle 1 Day 1517.9 day*ng/mLStandard Deviation 11.4
Secondary

Phase 2: Mean Plasma Cmax of MMAE

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Days 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)

Population: The PK population included participants with sufficient data to enable calculation of at least 1 PK parameter, with data available for analyses. Number analyzed is number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Plasma Cmax of MMAECycle 3 Day 11.75 ng/mLStandard Deviation 0.643
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Plasma Cmax of MMAECycle 1 Day 152.95 ng/mLStandard Deviation 1.66
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Plasma Cmax of MMAECycle 1 Day 15.49 ng/mLStandard Deviation 2.62
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Plasma Cmax of MMAECycle 3 Day 151.74 ng/mLStandard Deviation 0.599
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Plasma Cmax of MMAECycle 3 Day 151.61 ng/mLStandard Deviation 0.597
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Plasma Cmax of MMAECycle 3 Day 11.69 ng/mLStandard Deviation 0.635
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Plasma Cmax of MMAECycle 1 Day 15.49 ng/mLStandard Deviation 2.8
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Plasma Cmax of MMAECycle 1 Day 152.81 ng/mLStandard Deviation 1.57
Secondary

Phase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAb

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Days 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)

Population: The PK population included participants with sufficient data to enable calculation of at least 1 PK parameter, with data available for analyses. Number analyzed is number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbAUC0-15d of Brentuximab Vedotin at Cycle 1 Day 149.7 day*µg/mLStandard Deviation 17.2
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbAUC0-15d of Brentuximab Vedotin at Cycle 1 Day 1554.9 day*µg/mLStandard Deviation 22.2
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbAUC0-15d of Brentuximab Vedotin at Cycle 3 Day 162.6 day*µg/mLStandard Deviation 16.9
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbAUC0-15d of Brentuximab Vedotin at Cycle 3 Day 1560.6 day*µg/mLStandard Deviation 11.1
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbAUC0-15d of TAb at Cycle 1 Day 177.2 day*µg/mLStandard Deviation 18.6
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbAUC0-15d of TAb at Cycle 1 Day 1597.3 day*µg/mLStandard Deviation 28.7
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbAUC0-15d of TAb at Cycle 3 Day 1119 day*µg/mLStandard Deviation 30.6
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbAUC0-15d of TAb at Cycle 3 Day 15124 day*µg/mLStandard Deviation 21.6
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbAUC0-15d of TAb at Cycle 3 Day 15125 day*µg/mLStandard Deviation 24.1
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbAUC0-15d of Brentuximab Vedotin at Cycle 1 Day 148.8 day*µg/mLStandard Deviation 16.3
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbAUC0-15d of TAb at Cycle 1 Day 177.6 day*µg/mLStandard Deviation 18
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbAUC0-15d of Brentuximab Vedotin at Cycle 1 Day 1554.0 day*µg/mLStandard Deviation 20.6
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbAUC0-15d of TAb at Cycle 3 Day 1120 day*µg/mLStandard Deviation 29.1
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbAUC0-15d of Brentuximab Vedotin at Cycle 3 Day 163.9 day*µg/mLStandard Deviation 18.6
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbAUC0-15d of TAb at Cycle 1 Day 1598.1 day*µg/mLStandard Deviation 27
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Serum AUC0-15d of Brentuximab Vedotin and TAbAUC0-15d of Brentuximab Vedotin at Cycle 3 Day 1561.4 day*µg/mLStandard Deviation 11.5
Secondary

Phase 2: Mean Serum Cmax of Brentuximab Vedotin and TAb

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Days 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)

Population: The PK population included participants with sufficient data to enable calculation of at least 1 PK parameter, with data available for analyses. Number analyzed is number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbCmax of TAb Vedotin at Cycle 1 Day 1526.5 µg/mLStandard Deviation 9.02
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbCmax of TAb Vedotin at Cycle 3 Day 129.5 µg/mLStandard Deviation 8.89
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbCmax of TAb Vedotin at Cycle 3 Day 1532.2 µg/mLStandard Deviation 11
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbCmax of Brentuximab Vedotin at Cycle 1 Day 123.1 µg/mLStandard Deviation 5.54
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbCmax of Brentuximab Vedotin at Cycle 1 Day 1525.3 µg/mLStandard Deviation 5.12
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbCmax of Brentuximab Vedotin at Cycle 3 Day 127.4 µg/mLStandard Deviation 6.14
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbCmax of Brentuximab Vedotin at Cycle 3 Day 1525.4 µg/mLStandard Deviation 4.03
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbCmax of TAb Vedotin at Cycle 1 Day 122.1 µg/mLStandard Deviation 5.34
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbCmax of TAb Vedotin at Cycle 1 Day 122.4 µg/mLStandard Deviation 5.23
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbCmax of TAb Vedotin at Cycle 1 Day 1526.4 µg/mLStandard Deviation 8.52
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbCmax of Brentuximab Vedotin at Cycle 1 Day 1524.9 µg/mLStandard Deviation 4.97
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbCmax of TAb Vedotin at Cycle 3 Day 129.5 µg/mLStandard Deviation 8.44
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbCmax of Brentuximab Vedotin at Cycle 3 Day 1525.8 µg/mLStandard Deviation 4.81
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbCmax of TAb Vedotin at Cycle 3 Day 1531.4 µg/mLStandard Deviation 10.4
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbCmax of Brentuximab Vedotin at Cycle 3 Day 127.3 µg/mLStandard Deviation 5.82
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Mean Serum Cmax of Brentuximab Vedotin and TAbCmax of Brentuximab Vedotin at Cycle 1 Day 123.0 µg/mLStandard Deviation 5.21
Secondary

Phase 2: Median Tmax of Brentuximab Vedotin and TAb in Serum

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Days 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)

Population: The PK population included participants with sufficient data to enable calculation of at least 1 PK parameter, with data available for analyses. Number analyzed is number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEDIAN)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumTmax of Brentuximab Vedotin at Cycle 1 Day 11.03 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumTmax of Brentuximab Vedotin at Cycle 1 Day 151.00 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumTmax of Brentuximab Vedotin at Cycle 3 Day 11.00 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumTmax of Brentuximab Vedotin at Cycle 3 Day 151.00 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumTmax of TAb at Cycle 1 Day 11.01 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumTmax of TAb at Cycle 1 Day 151.00 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumTmax of TAb at Cycle 3 Day 11.00 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumTmax of TAb at Cycle 3 Day 151.00 hour
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumTmax of TAb at Cycle 3 Day 151.00 hour
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumTmax of Brentuximab Vedotin at Cycle 1 Day 11.00 hour
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumTmax of TAb at Cycle 1 Day 11.00 hour
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumTmax of Brentuximab Vedotin at Cycle 1 Day 151.00 hour
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumTmax of TAb at Cycle 3 Day 11.00 hour
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumTmax of Brentuximab Vedotin at Cycle 3 Day 11.00 hour
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumTmax of TAb at Cycle 1 Day 151.00 hour
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Median Tmax of Brentuximab Vedotin and TAb in SerumTmax of Brentuximab Vedotin at Cycle 3 Day 151.00 hour
Secondary

Phase 2: Median Tmax of MMAE in Plasma

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Days 1 and 15 of Cycles 1 and 3 pre-infusion and up to 30 minutes after the end of infusion (Cycle length=28 days)

Population: The PK population included participants with sufficient data to enable calculation of at least 1 PK parameter, with data available for analyses. Number analyzed is number of participants with data available for analysis at the given time point.

ArmMeasureGroupValue (MEDIAN)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Median Tmax of MMAE in PlasmaCycle 1 Day 144.1 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Median Tmax of MMAE in PlasmaCycle 1 Day 1542.9 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Median Tmax of MMAE in PlasmaCycle 3 Day 144.9 hour
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Median Tmax of MMAE in PlasmaCycle 3 Day 1545.4 hour
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Median Tmax of MMAE in PlasmaCycle 3 Day 1546.0 hour
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Median Tmax of MMAE in PlasmaCycle 1 Day 144.4 hour
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Median Tmax of MMAE in PlasmaCycle 3 Day 145.3 hour
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Median Tmax of MMAE in PlasmaCycle 1 Day 1542.9 hour
Secondary

Phase 2: Number of ATA Positive and ATA Negative Participants With AEs and SAEs

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Up to 24 months

Population: The Safety Population included participants who received at least 1 dose of any drug in the A+AVD regimen. Data is reported as per ATA positive and negative status.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Number of ATA Positive and ATA Negative Participants With AEs and SAEsATA Negative: AEs48 Participants
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Number of ATA Positive and ATA Negative Participants With AEs and SAEsATA Positive: AEs3 Participants
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Number of ATA Positive and ATA Negative Participants With AEs and SAEsATA Negative: SAEs21 Participants
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Number of ATA Positive and ATA Negative Participants With AEs and SAEsATA Positive: SAEs2 Participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Number of ATA Positive and ATA Negative Participants With AEs and SAEsATA Positive: SAEs3 Participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Number of ATA Positive and ATA Negative Participants With AEs and SAEsATA Negative: AEs55 Participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Number of ATA Positive and ATA Negative Participants With AEs and SAEsATA Negative: SAEs21 Participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Number of ATA Positive and ATA Negative Participants With AEs and SAEsATA Positive: AEs4 Participants
Secondary

Phase 2: Overall Survival (OS)

Overall survival was defined as time from first dose until death. In the absence of confirmation of death, survival time was censored at the last date the participant was known to be alive, including study closure. This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Up to 24 months

Population: The safety/efficacy population included participants who received at least 1 dose of any drug in the A+AVD regimen.

ArmMeasureValue (MEDIAN)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Overall Survival (OS)NA months
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Overall Survival (OS)NA months
Secondary

Phase 2: Percentage of Participants Achieving CR Per IRF Assessment Per IWG Criteria in ATA Positive and ATA Negative Participants

CR is defined as the disappearance of all evidence of disease as assessed by IRF as per IWG Criteria. This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Up to 24 months

Population: Immunogenicity Population included participants who received at least 1 dose of study drug and had the baseline immunogenicity sample and at least 1 postbaseline immunogenicity sample assessment. Number analyzed is the number of participants analyzed for the specified category.

ArmMeasureGroupValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Percentage of Participants Achieving CR Per IRF Assessment Per IWG Criteria in ATA Positive and ATA Negative ParticipantsATA Negative75 percentage of participants
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Percentage of Participants Achieving CR Per IRF Assessment Per IWG Criteria in ATA Positive and ATA Negative ParticipantsTransiently ATA Positive67 percentage of participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Percentage of Participants Achieving CR Per IRF Assessment Per IWG Criteria in ATA Positive and ATA Negative ParticipantsATA Negative76 percentage of participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Percentage of Participants Achieving CR Per IRF Assessment Per IWG Criteria in ATA Positive and ATA Negative ParticipantsTransiently ATA Positive75 percentage of participants
Secondary

Phase 2: Percentage of Participants Receiving Irradiation for HL Following Study Treatment

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Up to 24 months

Population: The safety/efficacy population included participants who received at least 1 dose of any drug in the A+AVD regimen.

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Percentage of Participants Receiving Irradiation for HL Following Study Treatment25 percentage of participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Percentage of Participants Receiving Irradiation for HL Following Study Treatment24 percentage of participants
Secondary

Phase 2: Percentage of Participants Who Experienced AEs From the First Dose of Protocol Therapy Through 30 Days After Administration of the Last Dose of Protocol Therapy

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: From first dose in Cycle 1 Day 1 until 30 days after the last dose of study drug in Cycle 6 Day 15 (up to Cycle 7 Day 15) (Cycle length=28 days)

Population: The safety population included participants who had received at least 1 dose of any study drug (A+AVD regimen).

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Percentage of Participants Who Experienced AEs From the First Dose of Protocol Therapy Through 30 Days After Administration of the Last Dose of Protocol Therapy100 percentage of participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Percentage of Participants Who Experienced AEs From the First Dose of Protocol Therapy Through 30 Days After Administration of the Last Dose of Protocol Therapy100 percentage of participants
Secondary

Phase 2: Percentage of Participants Who Experienced Peripheral Neuropathy, Regardless of Seriousness, From the First Dose of Protocol Therapy

Peripheral Neuropathy (PN) was defined by the peripheral neuropathy standardized MedDRA query (SMQ) broad search. This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Up to 24 months

Population: The safety population included participants who received at least 1 dose of any drug in the A+AVD regimen.

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Percentage of Participants Who Experienced Peripheral Neuropathy, Regardless of Seriousness, From the First Dose of Protocol Therapy20 percentage of participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Percentage of Participants Who Experienced Peripheral Neuropathy, Regardless of Seriousness, From the First Dose of Protocol Therapy19 percentage of participants
Secondary

Phase 2: Percentage of Participants Who Experienced SAEs From the First Dose of Protocol Therapy Through 30 Days After Administration of the Last Dose of Protocol Therapy

This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: From first dose in Cycle 1 Day 1 until 30 days after the last dose of study drug in Cycle 6 Day 15 (up to Cycle 7 Day 15) (Cycle length=28 days)

Population: The safety population included participants who had received at least 1 dose of any study drug (A+AVD regimen).

ArmMeasureValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Percentage of Participants Who Experienced SAEs From the First Dose of Protocol Therapy Through 30 Days After Administration of the Last Dose of Protocol Therapy45 percentage of participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Percentage of Participants Who Experienced SAEs From the First Dose of Protocol Therapy Through 30 Days After Administration of the Last Dose of Protocol Therapy41 percentage of participants
Secondary

Phase 2: Percentage of Participants Who Were ATA Positive, Persistently Positive, or Transiently Positive, and nATA Positive

ATA positive was defined as participants who have a positive ATA in any postbaseline sample. Transiently ATA positive was defined as participants who have positive ATA in 1 or 2 postbaseline samples. Persistently ATA positive was defined as participants who have positive ATA in more than 2 postbaseline timepoints. Transiently ATA positive was defined as participants who have positive ATA in 1 or 2 postbaseline samples. nATA positive was defined as participants who have at least one positive nATA in any postbaseline ATA positive sample. Here, percentage of participants who were transiently or persistently ATA positive are considered as ATA positive. This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: From first dose until 30 days after the last dose of study drug (up to 7 months)

Population: Immunogenicity population included participants who received at least 1 dose of study drug and had the baseline immunogenicity sample and at least 1 postbaseline immunogenicity sample assessment.

ArmMeasureGroupValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Percentage of Participants Who Were ATA Positive, Persistently Positive, or Transiently Positive, and nATA PositivePersistently ATA Positive0 percentage of participants
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Percentage of Participants Who Were ATA Positive, Persistently Positive, or Transiently Positive, and nATA PositivenATA Positive4 percentage of participants
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Percentage of Participants Who Were ATA Positive, Persistently Positive, or Transiently Positive, and nATA PositiveTransiently ATA Positive6 percentage of participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Percentage of Participants Who Were ATA Positive, Persistently Positive, or Transiently Positive, and nATA PositivePersistently ATA Positive0 percentage of participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Percentage of Participants Who Were ATA Positive, Persistently Positive, or Transiently Positive, and nATA PositiveTransiently ATA Positive7 percentage of participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Percentage of Participants Who Were ATA Positive, Persistently Positive, or Transiently Positive, and nATA PositivenATA Positive3 percentage of participants
Secondary

Phase 2: Percentage of Participants With Low and High ATA Titer Values

High ATA titer was defined as participants who have at least one postbaseline ATA titer \>25. Low ATA titer was defined as participants whose postbaseline ATA titer are all \<=25. This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Up to 6 months

Population: Immunogenicity population included participants who received at least 1 dose of study drug and had the baseline immunogenicity sample and at least 1 postbaseline immunogenicity sample assessment.

ArmMeasureGroupValue (NUMBER)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Percentage of Participants With Low and High ATA Titer ValuesATA Titer Low6 percentage of participants
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Percentage of Participants With Low and High ATA Titer ValuesATA Titer High0 percentage of participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Percentage of Participants With Low and High ATA Titer ValuesATA Titer Low7 percentage of participants
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Percentage of Participants With Low and High ATA Titer ValuesATA Titer High0 percentage of participants
Secondary

Phase 2: Progression-free Survival (PFS)

PFS per IRF:time from first dose until disease progression per IRF/death due to any cause,whichever occurred first.Participants with no objective progressive disease (PD),did not die,were still on study follow-up at time of analysis were removed from study prior to documentation of PD,PFS was censored on date of last adequate disease assessment before initiation of any non-protocol,alternative therapy.Participants who were on antitumor treatment,other than SCT/radiotherapy,censoring was at last adequate disease assessment before initiation of such alternative treatment.If participant experienced disease progression per IRF/died after initiation of antitumor treatment,other than SCT/radiotherapy,such participant was censored and not considered having PFS.Outcome measure was planned to be assessed for all participant treated at recommended dose in Phase 2.As per SAP,Phase 2 data was summarized and reported in two arms:Phase 2 and Phase 1 + Phase 2.

Time frame: Up to 24 months

Population: The safety/efficacy population included participants who received at least 1 dose of any drug in the A+AVD regimen.

ArmMeasureValue (MEDIAN)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Progression-free Survival (PFS)NA months
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Progression-free Survival (PFS)NA months
Secondary

Phase 2: Time to Onset and Resolution for All Peripheral Neuropathy Events

Time to onset of first event was defined as time from first dose of study drug to onset of first treatment-emergent PN event. Time to resolution was calculated as the time from onset date to the date of resolution PN (SMQ) event. Participants with multiple resolved events were counted once at the longest time to resolution. Resolution was defined as an event outcome of resolved or resolved with sequelae. This outcome measure was planned to be assessed only for all participants treated at the recommended dose in Phase 2. As prespecified in SAP, data for Phase 2 was summarized and reported in two arms: Phase 2 and Phase 1 + Phase 2.

Time frame: Up to 24 months

Population: The safety population included participants who received at least 1 dose of any drug in the A+AVD regimen. Overall number analyzed signifies participants who had peripheral neuropathy were analyzed for this outcome measure, number analyzed are participants with evaluable for the specific category.

ArmMeasureGroupValue (MEDIAN)
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Time to Onset and Resolution for All Peripheral Neuropathy EventsTime to Onset5.93 weeks
Phase 1: Brentuximab Vedotin 48 mg/m^2 +AVDPhase 2: Time to Onset and Resolution for All Peripheral Neuropathy EventsTime to Resolution1.57 weeks
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Time to Onset and Resolution for All Peripheral Neuropathy EventsTime to Onset5.93 weeks
Phase 1 + Phase 2: Brentuximab Vedotin 48 mg/m^2 + AVDPhase 2: Time to Onset and Resolution for All Peripheral Neuropathy EventsTime to Resolution1.57 weeks

Source: ClinicalTrials.gov · Data processed: Feb 23, 2026