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A Randomized Study of Iodine-131 Anti-b1 Antibody Versus Anti-b1 Antibody in Chemotherapy-relapsed/Refractory Low-grade or Transformed Low-grade Non-Hodgkin's Lymphoma (NHL)

Phase II a Randomized Study of Iodine-131 Anti-b1 Antibody Versus Anti-b1 Antibody in Chemotherapy-relapsed/Refractory Low-grade or Transformed Low-grade Non-Hodgkin's Lymphoma (NHL)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01573000
Enrollment
78
Registered
2012-04-06
Start date
1998-09-30
Completion date
2010-04-30
Last updated
2017-01-18

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

Conditions

Lymphoma, Non-Hodgkin

Keywords

Bexxar, Non-Hodgkin's Lymphoma, Tositumomab, Anti-B1 Antibody, Radioimmunotherapy, Iodine I-131, Iodine-131

Brief summary

Subjects were randomized to receive either tositumomab (Anti-B1 Antibody) and iodine I 131 tositumomab (Arm A) or unlabeled tositumomab (Arm B). Subjects randomized to Arm B were allowed to cross over and receive I 131 tositumomab once their disease had progressed as long as they still fulfilled the protocol entry criteria (except for exclusion criterion 12, prior monoclonal antibody therapy) and were human anti-murine antibody (HAMA) negative. Study endpoint assessments of response were conducted by a Masked Independent Randomized Radiographic and Oncologic Review (MIRROR) panel and the Study Investigators' assessments of safety and survival. Subjects who completed at least two years of follow-up in Protocol BEX104515 (formerly Corixa Protocol RIT-II-002) were enrolled in long term follow-up Protocol BEX104526 (formerly Corixa Protocol CCBX001-051), an administrative protocol, for continued radiographic response evaluations and safety evaluations every 6 months for years 3 through 5 post-treatment and annually for years 6 through 10 post-treatment. Subjects in BEX104526 were assessed for survival, disease status, subsequent therapy for NHL, and long-term safety, including the use of thyroid medication, development of hypothyroidism, human anti murine antibody (HAMA), myelodysplastic syndrome, acute myelogenous leukemia, and all other secondary malignancies. Additionally, subjects were followed for the development of any adverse event(s) deemed by the Principal Investigator as being possibly or probably related to a subject's previous treatment with Iodine I-131 tositumomab. Laboratory evaluations consisting of a thyroid stimulating hormone level and a complete blood cell count, with a differential and platelet count, were obtained annually through year 10 post-treatment. Dosimetric Dose: Subjects received 450 mg of tositumomab IV followed by 5.0 mCi of Iodine I-131 and 35 mg of tositumomab. Following the dosimetric dose, whole body dosimetry was performed on each subject using a total body gamma camera. Whole body anterior and posterior whole body images were obtained at the following timepoints. 1. Within one hour of infusion of the dosimetric dose and prior to urination 2. 2-4 days after infusion of the dosimetric dose, following urination 3. 6-7 days after infusion of the dosimetric dose, following urination Therapeutic Dose: The total body residence time, derived from total body gamma camera counts obtained at the 3 time points, was used to calculate the iodine-131 activity (mCi) to be administered to deliver the therapeutic total body irradiation dose of 65 or 75 cGy. The therapeutic step was administered 7-14 days after the dosimetric step and consisted of tositumomab 450 mg followed by an activity (mCi) of iodine-131 calculated to deliver 75 cGy or 65 cGy of total body irradiation, depending on platelet count, and 35 mg of tositumomab. For subjects with ≥150,000 platelets/mm3, the recommended dose was the activity of iodine-131 calculated to deliver 75 cGy of total body irradiation; for subjects with NCI Grade 1 thrombocytopenia (platelet counts ≥100,000 but \<150,000 platelets/mm3), the recommended dose was the activity of iodine-131 calculated to deliver 65 cGy of total body irradiation.

Detailed description

This is a Phase II randomized, controlled, two-arm, open-label, multicenter study comparing the safety and efficacy of tositumomab and iodine I 131 tositumomab to tositumomab for the treatment of chemotherapy-relapsed or refractory low-grade or transformed low-grade B-cell NHL. Treatment Arm A: Subject will undergo 2 phases of study. In the first phase, termed dosimetric dose, subjects will receive tositumomab (450 mg) followed by tositumomab (35 mg) that has been trace labeled with 5mCi) Iodine-131 tositumomab. Whole body gamma camera scans will be obtained on day 0, day 2, 3, or 4, and day 6 or 7 following the dosimetric dose. Using the dosimetric data from three imaging time points, a subject-specific dose of iodine I 131 tositumomab to deliver the desired total body dose of radiotherapy will be calculated. In the second phase of the study, termed therapeutic dose, subjects will receive unlabeled tositumomab (450mg) followed by iodine tositumomab (35mg) labeled with the subject-specific dose of iodine I-131 to deliver a whole body dose of 75 cGy to subjects. Subjects with platelet counts of 100,001 - 149,999 cells/mm3, will receive 65 cGy and subjects who are obese will be doses based on 137% of their lean body mass. Subjects will be treated with either saturated solution potassium iodide (SSKI), Lugol's solution, or potassium iodide tablets starting at least 24 hours prior to the first infusion of the Iodine-131 tositumomab (i.e., the dosimetric dose) and continuing for 14 days following the last infusion of radiolabeled tositumomab (i.e., the therapeutic dose). Treatment Arm B: Subjects will receive the same amount of unlabeled tositumomab (450 + 35 mg) administered over the same time-frame as Arm A on the study Days 0 and 7 (the day 7 dose may be delayed but no longer than 14 days after the first dose). Crossover treatment Arm B: Subjects in Arm B may crossover and receive Iodine-131 tositumomab following progression of their lymphoma if they still fulfill the protocol inclusion exclusion criteria (except exclusion criteria#12) and are HAMA-negative.

Interventions

BIOLOGICALIodine-131 Anti-B1 Antibody Versus Anti-B1 Antibody in Chemotherapy-Relapsed/Refractory Low-Grade or Transformed Low-Grade Non-Hodgkin's Lymphoma (NHL)

Subjects will be randomized to receive tositumomab and iodine-131 tositumomab (Arm A) or unlabeled tositumomab (Arm B). Subjects randomized to receive unlabeled tositumomab may crossover and receive radiolabeled Iodine-131 tositumomab following progression of their lymphoma. Response in both arms will be assessed at 7 weeks, 13 weeks, and then at 3-monthly intervals for up to 2 years.

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Histologically confirmed low-grade or transformed NHL with evaluable, measurable disease * Tumor had to express CD20 antigen * One to three prior chemotherapy regimens * Karnofsky performance score ≥60% and anticipated survival ≥3 months * Absolute neutrophil count (ANC) \>1500/mm3 and platelet count \>100,000/mm3 * Adequate renal and hepatic function * 18 years of age or older. * Written informed consent and sign an IRB-approved Informed consent from prior to study entry.

Exclusion criteria

* More than an average of 25% of the intratrabecular marrow space involved by lymphoma in bone marrow biopsy specimens as assessed microscopically within 42 days of study entry. Bilateral posterior iliac crest core biopsies are required if the percentage of intratrabecular space involved exceeds 10% on a unilateral biopsy. The mean of bilateral biopsies must be no more than 25%. * Received cytotoxic chemotherapy, radiation therapy, immunosuppressants, or cytokine treatment within FOUR weeks prior to study entry (6 weeks of nitrosourea compounds) or who exhibit persistent clinical evidence of toxicity. The use of steroids must be discontinued at least 1 week prior to study entry. * Have undergone prior stem cell transplant. * Active obstructive hydronephrosis. * Evidence of active infection requiring intravenous antibiotics at the time of study entry. * New York Heart Association class III or IV heart disease or other serious illness that would preclude evaluation. * Prior malignancy other than lymphoma, except for adequately-treated skin cancer, in situ cervical cancer, or other cancer for which subject has been disease-free for 5 years. * Known HIV infection. * Known brain or leptomeningeal metastases. * Pregnant or nursing. Subjects of childbearing potential must undergo pregnancy test within 7 days of study entry and antibody is not to be administered until a negative result is obtained. For those subjects in Arm B, the pregnancy test must be repeated within 7 days of crossover. Male and female must agree to use effective contraception for 6 months following the therapeutic dose, as applicable. * Previous allergic reactions to iodine. This does not include reactions to intravenous iodine-containing contrast materials. * Previously given any monoclonal or polyclonal antibodies of any non-human species for either diagnostic or therapeutic purpose. This includes engineered chimeric and humanized antibodies. * Previously received radioimmunotherapy . * Progressive disease within one year of irradiation arising in a field that has been previously irradiated with \>3500 cGy. * de novo intermediate or high-grade lymphoma. * Received \>3 chemotherapy regimens (different or identical agents).

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants (Par.) With Confirmed Response as Assessed by the InvestigatorParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Responses had to be confirmed by 2 separate evaluations occurring \>=4 weeks apart. Par. with confirmed response include those with Complete Response (CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease), Clinical Complete Response (CCR: complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present), or Partial Response (PR: \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions; no new lesions).
Number of Participants With Confirmed Response Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the InvestigatorParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Participants receiving Unlabeled TST with progressive disease (defined as a \>=25% increase from the nadir value of the sum of the products of the longest perpendicular diameters of all measureable lesions or the appearance of any new lesion. Individual lesions must be \>2 centimeters \[cm\] in diameter by radiographic evaluation or \>1 cm in diameter by physical examination.) were assessed separately before and after receiving the crossover treatment of I 131 TST for confirmed response, which included participants with CR, CCR, and PR.
Number of Participants With Confirmed Complete Response (CR) as Assessed by the InvestigatorParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.CR is defined as the complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease.
Number of Participants (Par.) With a Confirmed Complete Response as Assessed by the Masked Independent Randomized Radiology and Oncology Review (MIRROR) PanelThe MIRROR panel reviewed responses of participants from 17 July 1998 to 17 January 2001Responses had to be confirmed by 2 separate evaluations occurring \>=4 weeks apart. Par. with confirmed response include those with Complete Response (CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease), Clinical Complete Response (CCR: complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present), or Partial Response (PR: \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions; no new lesions).
Number of Participants With Confirmed Complete Response (CR) Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the InvestigatorParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Participants receiving Unlabeled TST with progressive disease were assessed separately before and after receiving the crossover treatment of I 131 TST for CR. CR is defined as the complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease.
Number of Participants With Confirmed Clinical Complete Response (CCR) as Assessed by the InvestigatorParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.CCR is defined as the complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present. Generally, an unchanging lesion =\<2 cm in diameter by radiographic evaluation or =\<1 cm in diameter by physical examination can be considered scar tissue.
Number of Participants With Confirmed Clinical Complete Response (CCR) Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the InvestigatorParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Participants receiving Unlabeled TST with progressive disease were assessed separately before and after receiving the crossover treatment of I 131 TST for CCR. CCR is defined as the complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present. Generally, an unchanging lesion =\<2 cm in diameter by radiographic evaluation or =\<1 cm in diameter by physical examination can be considered scar tissue.
Number of Participants With Confirmed Complete Response Plus Clinical Complete Response (CR + CCR) as Assessed by the InvestigatorParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.CCR is defined as the complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present. Generally, an unchanging lesion =\<2 cm in diameter by radiographic evaluation or =\<1 cm in diameter by physical examination can be considered scar tissue. The extent of disease must be unchanged or decreased upon follow-up evaluations. If the extent of disease was unchanged or if further decreases occurred for 6 months or longer, the participant was reclassified as having a CR.
Number of Participants With Confirmed Complete Response Plus Clinical Complete Response (CR + CCR) Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the InvestigatorParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Participants receiving Unlabeled TST with progressive disease were assessed separately before and after receiving the crossover treatment of I 131 TST for CR + CCR.
Number of Participants With Confirmed Partial Response (PR) as Assessed by the InvestigatorParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Confirmed PR is defined as a \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions, with no new lesions.
Number of Participants With Confirmed Partial Response (PR) Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the InvestigatorParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Participants receiving Unlabeled TST with progressive disease were assessed separately before and after receiving the crossover treatment of I 131 TST confirmed PR. Confirmed PR is defined as a \>=50 percent reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions, with no new lesions.

Secondary

MeasureTime frameDescription
Number of Participants (Par.) With a Confirmed Response (CR, CCR, or PR) as Assessed by the MIRROR PanelThe MIRROR panel reviewed responses of participants from 17 July 1998 to 17 January 2001Responses had to be confirmed by 2 separate evaluations occurring \>=4 weeks apart. Par. with confirmed response include those with Complete Response (CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease), Clinical Complete Response (CCR: complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present), or Partial Response (PR: \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions; no new lesions).
Duration of Response for All Confirmed Responders, Confirmed Complete Responders, and Confirmed Partial RespondersParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.For all participants with CR, CCR, or PR, duration of response was defined as the time from first documented response to first documented progression. All confirmed responders included participants with CR, CCR, and PR, whereas confirmed complete responders included participants with CR and CCR.
MIRROR Panel Assessments of Duration of Complete Response (Time From the First Documented Response to the First Documented Progression)The MIRROR panel reviewed responses of participants from 17 July 1998 to 17 January 2001Responses had to be confirmed by 2 separate evaluations occurring \>=4 weeks apart. Par. with confirmed response include those with Complete Response (CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease), Clinical Complete Response (CCR: complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present), or Partial Response (PR: \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions; no new lesions).
MIRROR Panel Assessments of Duration of Confirmed Response (Time From the First Documented Response to the First Documented Progression)The MIRROR panel reviewed responses of participants from 17 July 1998 to 17 January 2001Responses had to be confirmed by 2 separate evaluations occurring \>=4 weeks apart. Par. with confirmed response include those with Complete Response (CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease), Clinical Complete Response (CCR: complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present), or Partial Response (PR: \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions; no new lesions).
Time to Progression of Disease or Death as Assessed by the InvestigatorParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Progression-free survival or time to progression is defined as the time from the dosimetric dose to the first documented occurrence of disease progression or death.
Time to Progression of Disease or Death in Participants Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the InvestigatorParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Progression-free survival or time to progression is defined as the time from the dosimetric dose to the first documented occurrence of disease progression or death.
MIRROR Panel Assessed Time to Response (Time From the Date of Enrollment to the First Documented Response (PR, CR, CCR)The MIRROR panel reviewed responses of participants from 17 July 1998 to 17 January 2001Responses had to be confirmed by 2 separate evaluations occurring \>=4 weeks apart. Par. with confirmed response include those with Complete Response (CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease), Clinical Complete Response (CCR: complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present), or Partial Response (PR: \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions; no new lesions).
MIRROR Panel Assessed Progression-free SurvivalThe MIRROR panel reviewed responses of participants from 17 July 1998 to 17 January 2001Time from the date of enrollment (the date of randomization) to the first documented progression or death.
Overall SurvivalParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Overall survival is defined as the time from the treatment start date to the date of death by any cause.
Number of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.An AE is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have a causal relationship with this treatment. Causality of AEs was determined by the investigators as none, remote, possible, probable, or highly probable. AEs considered by the investigator as being at least remotely related to the study treatment were considered to be DR AEs. White blood cell (WBC) count and absolute neutrophil count (ANC) were measured as cells per millimeters cubed (mm\^3); hemoglobin was measured in grams per deciliter (g/dL).
Number of Participants With the Indicated Type of InfectionParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.An infection is the colonization of a host organism by a parasite species. Infecting parasites seek to use the host's resources to reproduce, often resulting in disease. Specimen samples of the body fluid are cultured for testing whether the infectious organism is present and grown in the culture media to assess the growth pattern of the organisms present in the specimen. The culture results could be positive or negative. The positive culture results indicate that the tested participant has the infection under investigation, in which case therapeutic treatment with anti-infective is required.
Number of Participants With an Infection for Which Anti-infectives Were AdministeredParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Anti-infectives are capable of acting against infection, by inhibiting the spread of an infectious agent or by killing the infectious agent outright. Anti-infective is a general term that encompasses antibacterials, antibiotics, antifungals, antiprotozoans, and antivirals.
Number of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.AEs were graded using the Common Toxicity Criteria from the Cancer Therapy Evaluation Program, Division of Cancer Therapy, National Cancer Institute. Grades: 0 = No adverse event or within normal limits; 1 = Mild adverse event; 2 = Moderate adverse event; 3 = Severe and undesirable adverse event; 4 = Life-threatening or disabling adverse event; 5 = Death related to adverse event.
Number of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.AEs were graded using the Common Toxicity Criteria from the Cancer Therapy Evaluation Program, Division of Cancer Therapy, National Cancer Institute. Grades: 0 = No adverse event or within normal limits; 1 = Mild adverse event; 2 = Moderate adverse event; 3 = Severe and undesirable adverse event; 4 = Life-threatening or disabling adverse event; 5 = Death related to adverse event.
Number of Participants With the Indicated Primary Cause of DeathParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Participants were categorized according to their primary cause of death. Deaths due to progressive disease or to another reason (Other) were not captured as serious adverse events (SAEs) and are thus not included in the SAE module.
Number of Participants With a Time to Death From the Last Dose of Study Drug Less Than or Equal to 30 Days or More Than 30 DaysParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Time to death from the last dose of study drug is the time from the last dose of study drug administered to the date of death. Deaths due to progressive disease or to another reason (Other) were not captured as serious adverse events (SAEs) and are thus not included in the SAE module.
Number of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.An SAE is any event occurring at any dose that results in any of the following: death, a life-threatening adverse drug experience (ADE; at immediate risk of death from the experience as it occurred), inpatient hospitalization/prolongation of existing hospitalization, a persistent/significant disability/incapacity, or a congenital anomaly/birth defect. Medical events that may not result in death, be life-threatening, or require hospitalization may be considered to be a serious ADEs when based upon appropriate medical judgment. Relatedness was based on the investigator's medical judgement.
Number of Participants With the Indicated Fatal SAEs Related to Study DrugParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.An SAE is any event occurring at any dose that results in any of the following: death, a life-threatening adverse drug experience (ADE; at immediate risk of death from the experience as it occurred), inpatient hospitalization/prolongation of existing hospitalization, a persistent/significant disability/incapacity, or a congenital anomaly/birth defect. Medical events that may not result in death, be life-threatening, or require hospitalization may be considered to be a serious ADEs when based upon appropriate medical judgment. Relatedness was based on the investigator's medical judgement.
Time to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Nadir is defined as the lowest laboratory value recorded following the administration of the study medication. Time to recovery to baseline in hematologic laboratory evaluations is the time required for recovery from nadir values to baseline values. Hematologic laboratory evaluations included ANC, hemoglobin (Hb), platelets (Plt), and WBC count.
Nadir Values for ANC, a Hematologic ParameterParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Nadir is defined as the lowest laboratory value recorded following the administration of study medication. ANC is a measure of the number of neutrophil granulocytes present in the blood. Neutrophils are a type of white blood cell that fights against infection.
Nadir Values for Hemoglobin, a Hematologic ParameterParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Nadir is defined as the lowest laboratory value recorded following the administration of study medication. Hemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells.
Nadir Values for the Hematologic Parameters Platelets and WBC CountParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Nadir is defined as the lowest laboratory value recorded following the administration of study medication. Platelets and WBCs are types of blood cells.
Number of Participants With the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Adverse events were graded using the Common Toxicity Criteria from the Cancer Therapy Evaluation Program, Division of Cancer Therapy, National Cancer Institute. Grades: 0 = No adverse event or within normal limits; 1 = Mild adverse event; 2 = Moderate adverse event; 3 = Severe and undesirable adverse event; 4 = Life-threatening or disabling adverse event; 5 = Death related to adverse event.
Duration of the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Adverse events were graded using the Common Toxicity Criteria from the Cancer Therapy Evaluation Program, Division of Cancer Therapy, National Cancer Institute. Grades: 0 = No adverse event or within normal limits; 1 = Mild adverse event; 2 = Moderate adverse event; 3 = Severe and undesirable adverse event; 4 = Life-threatening or disabling adverse event; 5 = Death related to adverse event.
Time to Human Anti-Murine Antibodies (HAMA) Positivity From the First Dosimetric DoseParticipants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.Tositumomab is a murine (mouse) antibody (immunoglobulin) of the IgG2a subclass. Participants in this study were evaluated to determine whether they developed an immune response to study treatment as evident by human anti-mouse antibodies (HAMA) after administration of tositumomab and iodine I 131 tositumomab. A positive HAMA value indicates that the participant developed human anti-mouse antibodies above the HAMA assay threshold, and a negative HAMA value indicates either the absence or below threshold level of human anti-mouse antibodies.

Participant flow

Pre-assignment details

Participants (par.) received radioimmunotherapy of tositumomab (TST)/Iodine I 131 TST (Arm A) or unlabeled TST (Arm B) in 2 phases: dosimetric and therapeutic dose. Arm B par. were allowed to crossover and receive I 131 TST, if disease progressed. After TST treatment, par. could have entered a Long-Term Follow-Up study (BEX104526; NCT00240591).

Participants by arm

ArmCount
TST and Iodine I 131 TST
Participants received a dosimetric dose (DD) consisting of 450 milligrams (mg) of tositumomab (TST) intravenously (IV) followed by 5.0 millicurie (mCi) of Iodine I 131 and 35 mg of TST IV. The therapeutic dose (TD) consisting of 450 mg of TST IV, followed by a participant-specific dose of I 131 (75 centigray \[cGy\] or 65 cGy) and 35 mg of TST IV, was administered 7-14 days after the DD. Participants who had completed at least 2 years of follow-up after administration of TST/I 131 TST during the TD phase and had signed the informed consent to participate in the Long-Term Follow-Up (LTFU) study (BEX104526) were followed for up to 10 years. Participants did not receive any study medication during the LTFU study.
42
Unlabeled TST
Participants received a DD consisting of 450 mg and 35 mg of unlabelled TST IV. The TD consisting of 450 mg and 35 mg of TST IV was administered 7-14 days after the DD. Participants randomized to receive 450 mg and 35 mg of unlabelled TST IV during the DD and TD phase were allowed to crossover and receive I 131 TST using the same regimen used in the TST and Iodine I 131 TST treatment arm once their disease had progressed as long as they still fulfilled the protocol entry criteria. Participants who had completed at least 2 years of follow-up after administration of TST during the TD phase and had signed the informed consent to participate in the LTFU study (BEX104526) were followed for up to 10 years. Participants did not receive any study medication during the LTFU study.
36
Total78

Withdrawals & dropouts

PeriodReasonFG000FG001
Crossover PhaseDeath03
Crossover PhaseLack of Efficacy013
Crossover PhaseLost to Follow-up02
Dosimetric and Therapeutic TreatmentDeath01
Dosimetric and Therapeutic TreatmentLack of Efficacy2732
Dosimetric and Therapeutic TreatmentLost to Follow-up42
Dosimetric and Therapeutic TreatmentReceived Other Treatment20
Dosimetric and Therapeutic TreatmentWithdrawal by Subject20
Long-Term Follow-UpDeath30
Long-Term Follow-UpLost to Follow-up01

Baseline characteristics

CharacteristicTST and Iodine I 131 TSTUnlabeled TSTTotal
Age, Continuous56.3 Years
STANDARD_DEVIATION 11.6
55.4 Years
STANDARD_DEVIATION 12.8
55.8 Years
STANDARD_DEVIATION 12.1
Race/Ethnicity, Customized
Asian
0 participants1 participants1 participants
Race/Ethnicity, Customized
Black
1 participants1 participants2 participants
Race/Ethnicity, Customized
Hispanic
1 participants1 participants2 participants
Race/Ethnicity, Customized
Other/Unknown
1 participants0 participants1 participants
Race/Ethnicity, Customized
White
39 participants33 participants72 participants
Sex/Gender, Customized
Female
19 Participants18 Participants37 Participants
Sex/Gender, Customized
Male
23 Participants18 Participants41 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
42 / 4233 / 3619 / 19
serious
Total, serious adverse events
18 / 426 / 3610 / 19

Outcome results

Primary

Number of Participants (Par.) With a Confirmed Complete Response as Assessed by the Masked Independent Randomized Radiology and Oncology Review (MIRROR) Panel

Responses had to be confirmed by 2 separate evaluations occurring \>=4 weeks apart. Par. with confirmed response include those with Complete Response (CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease), Clinical Complete Response (CCR: complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present), or Partial Response (PR: \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions; no new lesions).

Time frame: The MIRROR panel reviewed responses of participants from 17 July 1998 to 17 January 2001

Population: ITT-Exposed Population. Only those participants evaluable for confirmed response were analyzed.

ArmMeasureValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants (Par.) With a Confirmed Complete Response as Assessed by the Masked Independent Randomized Radiology and Oncology Review (MIRROR) Panel14 participants
Unlabeled TSTNumber of Participants (Par.) With a Confirmed Complete Response as Assessed by the Masked Independent Randomized Radiology and Oncology Review (MIRROR) Panel3 participants
p-value: 0.012Fisher Exact
Primary

Number of Participants (Par.) With Confirmed Response as Assessed by the Investigator

Responses had to be confirmed by 2 separate evaluations occurring \>=4 weeks apart. Par. with confirmed response include those with Complete Response (CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease), Clinical Complete Response (CCR: complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present), or Partial Response (PR: \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions; no new lesions).

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: Intent-to-Treat (ITT) Exposed Population: all participants who were enrolled into the study and received at least one dose of study drug. Only those participants evaluable for confirmed response were analyzed.

ArmMeasureValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants (Par.) With Confirmed Response as Assessed by the Investigator21 participants
Unlabeled TSTNumber of Participants (Par.) With Confirmed Response as Assessed by the Investigator8 participants
95% CI: [35, 65]
95% CI: [9, 36]
Primary

Number of Participants With Confirmed Clinical Complete Response (CCR) as Assessed by the Investigator

CCR is defined as the complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present. Generally, an unchanging lesion =\<2 cm in diameter by radiographic evaluation or =\<1 cm in diameter by physical examination can be considered scar tissue.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. Only those participants evaluable for confirmed response were analyzed.

ArmMeasureValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With Confirmed Clinical Complete Response (CCR) as Assessed by the Investigator1 participants
Unlabeled TSTNumber of Participants With Confirmed Clinical Complete Response (CCR) as Assessed by the Investigator1 participants
95% CI: [0, 7]
95% CI: [0, 8]
Primary

Number of Participants With Confirmed Clinical Complete Response (CCR) Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator

Participants receiving Unlabeled TST with progressive disease were assessed separately before and after receiving the crossover treatment of I 131 TST for CCR. CCR is defined as the complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present. Generally, an unchanging lesion =\<2 cm in diameter by radiographic evaluation or =\<1 cm in diameter by physical examination can be considered scar tissue.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. All participants receiving Unlabeled TST who received the crossover treatment were analyzed.

ArmMeasureValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With Confirmed Clinical Complete Response (CCR) Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator0 participants
Unlabeled TSTNumber of Participants With Confirmed Clinical Complete Response (CCR) Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator1 participants
95% CI: [0, 0]
95% CI: [0, 15]
Primary

Number of Participants With Confirmed Complete Response (CR) as Assessed by the Investigator

CR is defined as the complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. Only those participants evaluable for confirmed response were analyzed.

ArmMeasureValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With Confirmed Complete Response (CR) as Assessed by the Investigator11 participants
Unlabeled TSTNumber of Participants With Confirmed Complete Response (CR) as Assessed by the Investigator3 participants
95% CI: [13, 39]
95% CI: [0, 17]
Primary

Number of Participants With Confirmed Complete Response (CR) Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator

Participants receiving Unlabeled TST with progressive disease were assessed separately before and after receiving the crossover treatment of I 131 TST for CR. CR is defined as the complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. All participants receiving Unlabeled TST who received the crossover treatment were analyzed.

ArmMeasureValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With Confirmed Complete Response (CR) Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator0 participants
Unlabeled TSTNumber of Participants With Confirmed Complete Response (CR) Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator8 participants
95% CI: [0, 0]
95% CI: [20, 64]
Primary

Number of Participants With Confirmed Complete Response Plus Clinical Complete Response (CR + CCR) as Assessed by the Investigator

CCR is defined as the complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present. Generally, an unchanging lesion =\<2 cm in diameter by radiographic evaluation or =\<1 cm in diameter by physical examination can be considered scar tissue. The extent of disease must be unchanged or decreased upon follow-up evaluations. If the extent of disease was unchanged or if further decreases occurred for 6 months or longer, the participant was reclassified as having a CR.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. Only those participants evaluable for confirmed response were analyzed.

ArmMeasureValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With Confirmed Complete Response Plus Clinical Complete Response (CR + CCR) as Assessed by the Investigator13 participants
Unlabeled TSTNumber of Participants With Confirmed Complete Response Plus Clinical Complete Response (CR + CCR) as Assessed by the Investigator4 participants
95% CI: [17, 45]
95% CI: [1, 21]
Primary

Number of Participants With Confirmed Complete Response Plus Clinical Complete Response (CR + CCR) Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator

Participants receiving Unlabeled TST with progressive disease were assessed separately before and after receiving the crossover treatment of I 131 TST for CR + CCR.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. All participants receiving Unlabeled TST who received the crossover treatment were analyzed.

ArmMeasureValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With Confirmed Complete Response Plus Clinical Complete Response (CR + CCR) Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator0 participants
Unlabeled TSTNumber of Participants With Confirmed Complete Response Plus Clinical Complete Response (CR + CCR) Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator9 participants
95% CI: [0, 0]
95% CI: [25, 70]
Primary

Number of Participants With Confirmed Partial Response (PR) as Assessed by the Investigator

Confirmed PR is defined as a \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions, with no new lesions.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. Only those participants evaluable for confirmed response were analyzed.

ArmMeasureValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With Confirmed Partial Response (PR) as Assessed by the Investigator7 participants
Unlabeled TSTNumber of Participants With Confirmed Partial Response (PR) as Assessed by the Investigator4 participants
95% CI: [5, 28]
95% CI: [1, 21]
Primary

Number of Participants With Confirmed Partial Response (PR) Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator

Participants receiving Unlabeled TST with progressive disease were assessed separately before and after receiving the crossover treatment of I 131 TST confirmed PR. Confirmed PR is defined as a \>=50 percent reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions, with no new lesions.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. All participants receiving Unlabeled TST who received the crossover treatment were analyzed.

ArmMeasureValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With Confirmed Partial Response (PR) Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator3 participants
Unlabeled TSTNumber of Participants With Confirmed Partial Response (PR) Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator6 participants
95% CI: [0, 32]
95% CI: [11, 52]
Primary

Number of Participants With Confirmed Response Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator

Participants receiving Unlabeled TST with progressive disease (defined as a \>=25% increase from the nadir value of the sum of the products of the longest perpendicular diameters of all measureable lesions or the appearance of any new lesion. Individual lesions must be \>2 centimeters \[cm\] in diameter by radiographic evaluation or \>1 cm in diameter by physical examination.) were assessed separately before and after receiving the crossover treatment of I 131 TST for confirmed response, which included participants with CR, CCR, and PR.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. All participants receiving Unlabeled TST who received the crossover treatment were analyzed.

ArmMeasureValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With Confirmed Response Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator3 participants
Unlabeled TSTNumber of Participants With Confirmed Response Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator15 participants
95% CI: [0, 32]
95% CI: [61, 97]
Secondary

Duration of Response for All Confirmed Responders, Confirmed Complete Responders, and Confirmed Partial Responders

For all participants with CR, CCR, or PR, duration of response was defined as the time from first documented response to first documented progression. All confirmed responders included participants with CR, CCR, and PR, whereas confirmed complete responders included participants with CR and CCR.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. Only those participants evaluable for CR, CCR, or PR were analyzed.

ArmMeasureGroupValue (MEDIAN)
TST and Iodine I 131 TSTDuration of Response for All Confirmed Responders, Confirmed Complete Responders, and Confirmed Partial RespondersAll Confirmed Responders, n=21, 842.0 months
TST and Iodine I 131 TSTDuration of Response for All Confirmed Responders, Confirmed Complete Responders, and Confirmed Partial RespondersConfirmed Complete Responders, n=13, 4116.8 months
TST and Iodine I 131 TSTDuration of Response for All Confirmed Responders, Confirmed Complete Responders, and Confirmed Partial RespondersConfirmed PR, n=7, 44.6 months
Unlabeled TSTDuration of Response for All Confirmed Responders, Confirmed Complete Responders, and Confirmed Partial RespondersAll Confirmed Responders, n=21, 818.5 months
Unlabeled TSTDuration of Response for All Confirmed Responders, Confirmed Complete Responders, and Confirmed Partial RespondersConfirmed Complete Responders, n=13, 4NA months
Unlabeled TSTDuration of Response for All Confirmed Responders, Confirmed Complete Responders, and Confirmed Partial RespondersConfirmed PR, n=7, 46.2 months
Secondary

Duration of the Indicated Grade 3 or Grade 4 Hematologic Toxicities

Adverse events were graded using the Common Toxicity Criteria from the Cancer Therapy Evaluation Program, Division of Cancer Therapy, National Cancer Institute. Grades: 0 = No adverse event or within normal limits; 1 = Mild adverse event; 2 = Moderate adverse event; 3 = Severe and undesirable adverse event; 4 = Life-threatening or disabling adverse event; 5 = Death related to adverse event.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. All participants with Grade 3 or Grade 4 hematologic toxicities were analyzed. The n in the category titles reflects the number of participants with the indicated Grade 3 or Grade 4 hematologic toxicity.

ArmMeasureGroupValue (MEDIAN)
TST and Iodine I 131 TSTDuration of the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesANC, n=14, 4, 1115 days
TST and Iodine I 131 TSTDuration of the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesHemoglobin, n=6, 0, 316 days
TST and Iodine I 131 TSTDuration of the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesPlatelets, n=15, 1, 922 days
TST and Iodine I 131 TSTDuration of the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesWBC count, n=18, 4, 1120 days
Unlabeled TSTDuration of the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesWBC count, n=18, 4, 1122 days
Unlabeled TSTDuration of the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesANC, n=14, 4, 1124 days
Unlabeled TSTDuration of the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesPlatelets, n=15, 1, 9411 days
Unlabeled TSTDuration of the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesHemoglobin, n=6, 0, 3NA days
Unlabeled TST CrossoverDuration of the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesWBC count, n=18, 4, 1130 days
Unlabeled TST CrossoverDuration of the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesHemoglobin, n=6, 0, 342 days
Unlabeled TST CrossoverDuration of the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesPlatelets, n=15, 1, 941 days
Unlabeled TST CrossoverDuration of the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesANC, n=14, 4, 1116 days
Secondary

MIRROR Panel Assessed Progression-free Survival

Time from the date of enrollment (the date of randomization) to the first documented progression or death.

Time frame: The MIRROR panel reviewed responses of participants from 17 July 1998 to 17 January 2001

Population: ITT-Exposed Population. Only those participants evaluable for confirmed response were analyzed.

ArmMeasureValue (MEDIAN)
TST and Iodine I 131 TSTMIRROR Panel Assessed Progression-free Survival6.3 months
Unlabeled TSTMIRROR Panel Assessed Progression-free Survival5.5 months
p-value: 0.016Log Rank
Secondary

MIRROR Panel Assessed Time to Response (Time From the Date of Enrollment to the First Documented Response (PR, CR, CCR)

Responses had to be confirmed by 2 separate evaluations occurring \>=4 weeks apart. Par. with confirmed response include those with Complete Response (CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease), Clinical Complete Response (CCR: complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present), or Partial Response (PR: \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions; no new lesions).

Time frame: The MIRROR panel reviewed responses of participants from 17 July 1998 to 17 January 2001

Population: ITT-Exposed Population. Only those participants evaluable for confirmed response were analyzed.

ArmMeasureValue (MEDIAN)
TST and Iodine I 131 TSTMIRROR Panel Assessed Time to Response (Time From the Date of Enrollment to the First Documented Response (PR, CR, CCR)49 days
Unlabeled TSTMIRROR Panel Assessed Time to Response (Time From the Date of Enrollment to the First Documented Response (PR, CR, CCR)69 days
p-value: 0.119Log Rank
Secondary

MIRROR Panel Assessments of Duration of Complete Response (Time From the First Documented Response to the First Documented Progression)

Responses had to be confirmed by 2 separate evaluations occurring \>=4 weeks apart. Par. with confirmed response include those with Complete Response (CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease), Clinical Complete Response (CCR: complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present), or Partial Response (PR: \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions; no new lesions).

Time frame: The MIRROR panel reviewed responses of participants from 17 July 1998 to 17 January 2001

Population: Intent-to-Treat (ITT) Exposed Population: all participants who were enrolled into the study and received at least one dose of study drug. Only those participants evaluable for confirmed response were analyzed.

ArmMeasureValue (MEDIAN)
TST and Iodine I 131 TSTMIRROR Panel Assessments of Duration of Complete Response (Time From the First Documented Response to the First Documented Progression)NA months
Unlabeled TSTMIRROR Panel Assessments of Duration of Complete Response (Time From the First Documented Response to the First Documented Progression)NA months
p-value: 0.495Log Rank
Secondary

MIRROR Panel Assessments of Duration of Confirmed Response (Time From the First Documented Response to the First Documented Progression)

Responses had to be confirmed by 2 separate evaluations occurring \>=4 weeks apart. Par. with confirmed response include those with Complete Response (CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease), Clinical Complete Response (CCR: complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present), or Partial Response (PR: \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions; no new lesions).

Time frame: The MIRROR panel reviewed responses of participants from 17 July 1998 to 17 January 2001

Population: ITT-Exposed Population. Only those participants evaluable for confirmed response were analyzed.

ArmMeasureValue (MEDIAN)
TST and Iodine I 131 TSTMIRROR Panel Assessments of Duration of Confirmed Response (Time From the First Documented Response to the First Documented Progression)NA months
Unlabeled TSTMIRROR Panel Assessments of Duration of Confirmed Response (Time From the First Documented Response to the First Documented Progression)18 months
p-value: 0.677Log Rank
Secondary

Nadir Values for ANC, a Hematologic Parameter

Nadir is defined as the lowest laboratory value recorded following the administration of study medication. ANC is a measure of the number of neutrophil granulocytes present in the blood. Neutrophils are a type of white blood cell that fights against infection.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. All participants with hematological toxicity were evaluated.

ArmMeasureValue (MEDIAN)
TST and Iodine I 131 TSTNadir Values for ANC, a Hematologic Parameter1.3 Cells/millimeters cubed (mm^3)
Unlabeled TSTNadir Values for ANC, a Hematologic Parameter2.6 Cells/millimeters cubed (mm^3)
Unlabeled TST CrossoverNadir Values for ANC, a Hematologic Parameter0.8 Cells/millimeters cubed (mm^3)
Secondary

Nadir Values for Hemoglobin, a Hematologic Parameter

Nadir is defined as the lowest laboratory value recorded following the administration of study medication. Hemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population

ArmMeasureValue (MEDIAN)
TST and Iodine I 131 TSTNadir Values for Hemoglobin, a Hematologic Parameter11 Grams/dL
Unlabeled TSTNadir Values for Hemoglobin, a Hematologic Parameter12.5 Grams/dL
Unlabeled TST CrossoverNadir Values for Hemoglobin, a Hematologic Parameter10.2 Grams/dL
Secondary

Nadir Values for the Hematologic Parameters Platelets and WBC Count

Nadir is defined as the lowest laboratory value recorded following the administration of study medication. Platelets and WBCs are types of blood cells.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population

ArmMeasureGroupValue (MEDIAN)
TST and Iodine I 131 TSTNadir Values for the Hematologic Parameters Platelets and WBC CountWBC count (1000 cells/microliter)2.3 cells/microliter
TST and Iodine I 131 TSTNadir Values for the Hematologic Parameters Platelets and WBC CountPlatelets (10000 cells/microliter)69 cells/microliter
Unlabeled TSTNadir Values for the Hematologic Parameters Platelets and WBC CountPlatelets (10000 cells/microliter)162.5 cells/microliter
Unlabeled TSTNadir Values for the Hematologic Parameters Platelets and WBC CountWBC count (1000 cells/microliter)4.4 cells/microliter
Unlabeled TST CrossoverNadir Values for the Hematologic Parameters Platelets and WBC CountPlatelets (10000 cells/microliter)50 cells/microliter
Unlabeled TST CrossoverNadir Values for the Hematologic Parameters Platelets and WBC CountWBC count (1000 cells/microliter)1.7 cells/microliter
Secondary

Number of Participants (Par.) With a Confirmed Response (CR, CCR, or PR) as Assessed by the MIRROR Panel

Responses had to be confirmed by 2 separate evaluations occurring \>=4 weeks apart. Par. with confirmed response include those with Complete Response (CR: complete resolution of all disease-related radiological abnormalities and the disappearance of all signs and symptoms related to the disease), Clinical Complete Response (CCR: complete resolution of all disease-related symptoms; residual foci, thought to be residual scar tissue, are present), or Partial Response (PR: \>=50% reduction in the sum of the products of the longest perpendicular diameters of all measurable lesions; no new lesions).

Time frame: The MIRROR panel reviewed responses of participants from 17 July 1998 to 17 January 2001

Population: ITT-Exposed Population. Only those participants evaluable for confirmed response were analyzed.

ArmMeasureValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants (Par.) With a Confirmed Response (CR, CCR, or PR) as Assessed by the MIRROR Panel23 participants
Unlabeled TSTNumber of Participants (Par.) With a Confirmed Response (CR, CCR, or PR) as Assessed by the MIRROR Panel6 participants
p-value: 0.001Fisher Exact
Secondary

Number of Participants With an Infection for Which Anti-infectives Were Administered

Anti-infectives are capable of acting against infection, by inhibiting the spread of an infectious agent or by killing the infectious agent outright. Anti-infective is a general term that encompasses antibacterials, antibiotics, antifungals, antiprotozoans, and antivirals.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. Only those participants who had an infection during the study and during the follow-up period were analyzed.

ArmMeasureGroupValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With an Infection for Which Anti-infectives Were AdministeredAnti-infective Administered16 participants
TST and Iodine I 131 TSTNumber of Participants With an Infection for Which Anti-infectives Were AdministeredAnti-infective Not Administered2 participants
Unlabeled TSTNumber of Participants With an Infection for Which Anti-infectives Were AdministeredAnti-infective Administered9 participants
Unlabeled TSTNumber of Participants With an Infection for Which Anti-infectives Were AdministeredAnti-infective Not Administered0 participants
Unlabeled TST CrossoverNumber of Participants With an Infection for Which Anti-infectives Were AdministeredAnti-infective Administered6 participants
Unlabeled TST CrossoverNumber of Participants With an Infection for Which Anti-infectives Were AdministeredAnti-infective Not Administered1 participants
Secondary

Number of Participants With a Time to Death From the Last Dose of Study Drug Less Than or Equal to 30 Days or More Than 30 Days

Time to death from the last dose of study drug is the time from the last dose of study drug administered to the date of death. Deaths due to progressive disease or to another reason (Other) were not captured as serious adverse events (SAEs) and are thus not included in the SAE module.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. All participants who died by the completion of LTFU were analyzed.

ArmMeasureGroupValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With a Time to Death From the Last Dose of Study Drug Less Than or Equal to 30 Days or More Than 30 Days=<30 Days0 participants
TST and Iodine I 131 TSTNumber of Participants With a Time to Death From the Last Dose of Study Drug Less Than or Equal to 30 Days or More Than 30 Days>30 Days25 participants
Unlabeled TSTNumber of Participants With a Time to Death From the Last Dose of Study Drug Less Than or Equal to 30 Days or More Than 30 Days=<30 Days0 participants
Unlabeled TSTNumber of Participants With a Time to Death From the Last Dose of Study Drug Less Than or Equal to 30 Days or More Than 30 Days>30 Days10 participants
Unlabeled TST CrossoverNumber of Participants With a Time to Death From the Last Dose of Study Drug Less Than or Equal to 30 Days or More Than 30 Days=<30 Days0 participants
Unlabeled TST CrossoverNumber of Participants With a Time to Death From the Last Dose of Study Drug Less Than or Equal to 30 Days or More Than 30 Days>30 Days13 participants
Secondary

Number of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More Participants

An AE is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have a causal relationship with this treatment. Causality of AEs was determined by the investigators as none, remote, possible, probable, or highly probable. AEs considered by the investigator as being at least remotely related to the study treatment were considered to be DR AEs. White blood cell (WBC) count and absolute neutrophil count (ANC) were measured as cells per millimeters cubed (mm\^3); hemoglobin was measured in grams per deciliter (g/dL).

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. All participants with any drug-related adverse events were analyzed.

ArmMeasureGroupValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsWBC <2000 cells/mm^318 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsCough3 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsDyspnoea2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsBronchitis1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsDizziness3 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsFatigue12 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPyrexia12 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsChills10 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPain2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsMalaise3 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsAsthenia2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsChest discomfort2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsFeeling hot1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsOedema peripheral1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsInfluenza like illness1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsNausea20 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsDiarrhoea4 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsAbdominal discomfort2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsDyspepsia3 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsVomiting2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsAbdominal pain upper3 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsConstipation3 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsANC <1000 cells/mm^314 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPlatelates <50000 cells/mm^315 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsHemoglobin < 8.0 g/dL6 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsRash5 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsErythema3 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPruritus1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsHyperhidrosis3 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsUrticaria1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsNight sweats2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsThroat irritation2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsOropharyngeal pain4 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsNasal congestion1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsSinus congestion1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsArthralgia8 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsMyalgia8 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsBack pain2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsNeck pain2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsUpper respiratory tract infection3 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPneumonia2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsSinusitis0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsHeadache5 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsParaesthesia1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsThrombocytopenia6 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsAnaemia5 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsLymphadenopathy3 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsLymph node pain2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsNeutropenia2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPancytopenia1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsMyelodysplastic syndrome3 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsBasal cell carcinoma1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsBody temperature increased3 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsWeight decreased2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsInsomnia4 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsDecreased appetite6 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsFlushing2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsHypothyroidism3 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsEar pruritus1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPlatelates <50000 cells/mm^31 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsErythema2 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPruritus3 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsConstipation0 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsUrticaria3 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsNight sweats0 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsCough1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsLymphadenopathy3 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsUpper respiratory tract infection2 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsThroat irritation2 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsHemoglobin < 8.0 g/dL0 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsBody temperature increased1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsDizziness2 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPancytopenia0 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsLymph node pain1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsBasal cell carcinoma1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsOropharyngeal pain0 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPneumonia1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsFatigue11 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsHypothyroidism0 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsWBC <2000 cells/mm^34 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPyrexia6 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsNasal congestion2 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsBronchitis1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsChills7 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsRash2 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsDyspnoea0 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPain3 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsAbdominal pain upper0 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsVomiting2 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsMalaise0 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsSinus congestion1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsSinusitis1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsAsthenia1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsANC <1000 cells/mm^34 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsEar pruritus1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsChest discomfort1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsMyelodysplastic syndrome0 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsHeadache5 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsFeeling hot2 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsArthralgia5 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsAnaemia0 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsOedema peripheral2 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsInsomnia2 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsMyalgia5 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsInfluenza like illness1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsDecreased appetite2 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsWeight decreased0 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsNausea5 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsFlushing1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsParaesthesia1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsDiarrhoea1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsBack pain2 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsHyperhidrosis1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsAbdominal discomfort1 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsNeutropenia0 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsNeck pain0 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsDyspepsia0 participants
Unlabeled TSTNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsThrombocytopenia0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsDyspepsia2 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsVomiting0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsAbdominal pain upper0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsConstipation0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsWBC <2000 cells/mm^311 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsAnaemia2 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsANC <1000 cells/mm^311 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPlatelates <50000 cells/mm^39 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsHemoglobin < 8.0 g/dL3 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsLymphadenopathy0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsRash2 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsHypothyroidism3 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsErythema0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsLymph node pain1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPruritus2 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsUrticaria0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsNeutropenia1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsDecreased appetite0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsThroat irritation2 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsOropharyngeal pain1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPancytopenia2 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsNasal congestion2 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsDyspnoea1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsEar pruritus1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsSinus congestion1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsArthralgia2 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsMyelodysplastic syndrome4 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsMyalgia0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsBack pain1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsBasal cell carcinoma1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsNeck pain1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsHyperhidrosis1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsNight sweats1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsFlushing0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsCough4 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsUpper respiratory tract infection1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsSinusitis2 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsThrombocytopenia3 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsInsomnia0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsFatigue6 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPneumonia1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPyrexia3 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsChills3 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsBronchitis1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsPain1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsBody temperature increased0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsMalaise1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsAsthenia0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsChest discomfort0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsFeeling hot0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsHeadache4 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsOedema peripheral0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsDizziness0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsInfluenza like illness1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsNausea2 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsDiarrhoea1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsParaesthesia1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsAbdominal discomfort2 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Drug-Related (DR) Adverse Events (AEs) Experienced by 3 or More ParticipantsWeight decreased1 participants
Secondary

Number of Participants With the Indicated Fatal SAEs Related to Study Drug

An SAE is any event occurring at any dose that results in any of the following: death, a life-threatening adverse drug experience (ADE; at immediate risk of death from the experience as it occurred), inpatient hospitalization/prolongation of existing hospitalization, a persistent/significant disability/incapacity, or a congenital anomaly/birth defect. Medical events that may not result in death, be life-threatening, or require hospitalization may be considered to be a serious ADEs when based upon appropriate medical judgment. Relatedness was based on the investigator's medical judgement.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. All participants who experienced any fatal SAE were analyzed.

ArmMeasureGroupValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With the Indicated Fatal SAEs Related to Study DrugMyelodysplastic syndrome2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Fatal SAEs Related to Study DrugAcute myeloid leukemia1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Fatal SAEs Related to Study DrugChronic myelomonocytic leukaemia0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Fatal SAEs Related to Study DrugThrombocytopenia0 participants
Unlabeled TSTNumber of Participants With the Indicated Fatal SAEs Related to Study DrugThrombocytopenia0 participants
Unlabeled TSTNumber of Participants With the Indicated Fatal SAEs Related to Study DrugMyelodysplastic syndrome0 participants
Unlabeled TSTNumber of Participants With the Indicated Fatal SAEs Related to Study DrugChronic myelomonocytic leukaemia0 participants
Unlabeled TSTNumber of Participants With the Indicated Fatal SAEs Related to Study DrugAcute myeloid leukemia0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Fatal SAEs Related to Study DrugThrombocytopenia1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Fatal SAEs Related to Study DrugAcute myeloid leukemia0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Fatal SAEs Related to Study DrugChronic myelomonocytic leukaemia1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Fatal SAEs Related to Study DrugMyelodysplastic syndrome3 participants
Secondary

Number of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More Participants

AEs were graded using the Common Toxicity Criteria from the Cancer Therapy Evaluation Program, Division of Cancer Therapy, National Cancer Institute. Grades: 0 = No adverse event or within normal limits; 1 = Mild adverse event; 2 = Moderate adverse event; 3 = Severe and undesirable adverse event; 4 = Life-threatening or disabling adverse event; 5 = Death related to adverse event.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. All participants with any Grade 3 or Grade 4 AEs experienced by 3 or more participants were analyzed.

ArmMeasureGroupValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsANC <1000 cells/mm^314 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsAnaemia2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsMyelodysplastic syndrome4 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsWBC <2000 cells/mm^318 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsNeutropenia2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsBasal cell carcinoma1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsThrombocytopenia5 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsPneumonia1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsPlatelets <50000 cells/mm^315 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsDyspnoea2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsPancytopenia1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsHemoglobin <8.0 g/dL6 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsBasal cell carcinoma1 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsPancytopenia0 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsWBC <2000 cells/mm^34 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsANC <1000 cells/mm^34 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsPlatelets <50000 cells/mm^31 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsHemoglobin <8.0 g/dL0 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsMyelodysplastic syndrome0 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsThrombocytopenia0 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsAnaemia0 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsNeutropenia0 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsPneumonia2 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsDyspnoea1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsPneumonia1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsAnaemia1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsWBC <2000 cells/mm^311 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsNeutropenia1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsPlatelets <50000 cells/mm^39 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsPancytopenia2 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsANC <1000 cells/mm^311 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsBasal cell carcinoma1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsDyspnoea0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsMyelodysplastic syndrome4 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsThrombocytopenia2 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 AEs Experienced by 3 or More ParticipantsHemoglobin <8.0 g/dL3 participants
Secondary

Number of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More Participants

AEs were graded using the Common Toxicity Criteria from the Cancer Therapy Evaluation Program, Division of Cancer Therapy, National Cancer Institute. Grades: 0 = No adverse event or within normal limits; 1 = Mild adverse event; 2 = Moderate adverse event; 3 = Severe and undesirable adverse event; 4 = Life-threatening or disabling adverse event; 5 = Death related to adverse event.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. All participants with any Grade 3 or Grade 4 drug-related AEs experienced by 3 or more participants were analyzed.

ArmMeasureGroupValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsAnaemia2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsMyelodysplastic Syndrome3 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsPancytopenia1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsThrombocytopenia5 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsBasal Cell Carcinoma1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsWBC <2000 cells/mm^318 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsPlatelets <50000 cells/mm^315 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsANC <1000 cells/mm^314 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsNeutropenia2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsHemoglobin <8.0 g/dL6 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsPneumonia1 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsBasal Cell Carcinoma1 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsWBC <2000 cells/mm^34 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsANC <1000 cells/mm^34 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsPlatelets <50000 cells/mm^31 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsHemoglobin <8.0 g/dL0 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsMyelodysplastic Syndrome0 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsThrombocytopenia0 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsAnaemia0 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsNeutropenia0 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsPancytopenia0 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsPneumonia1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsPancytopenia2 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsAnaemia1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsPlatelets <50000 cells/mm^39 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsWBC <2000 cells/mm^311 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsNeutropenia1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsANC <1000 cells/mm^311 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsBasal Cell Carcinoma1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsMyelodysplastic Syndrome4 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsPneumonia1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsThrombocytopenia2 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 Drug-related AEs Experienced by 3 or More ParticipantsHemoglobin <8.0 g/dL3 participants
Secondary

Number of Participants With the Indicated Grade 3 or Grade 4 Hematologic Toxicities

Adverse events were graded using the Common Toxicity Criteria from the Cancer Therapy Evaluation Program, Division of Cancer Therapy, National Cancer Institute. Grades: 0 = No adverse event or within normal limits; 1 = Mild adverse event; 2 = Moderate adverse event; 3 = Severe and undesirable adverse event; 4 = Life-threatening or disabling adverse event; 5 = Death related to adverse event.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population

ArmMeasureGroupValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesANC14 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesHemoglobin6 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesPlatelets15 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesWBC count18 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesWBC count4 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesANC4 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesPlatelets1 participants
Unlabeled TSTNumber of Participants With the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesHemoglobin0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesWBC count11 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesHemoglobin3 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesPlatelets9 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Grade 3 or Grade 4 Hematologic ToxicitiesANC11 participants
Secondary

Number of Participants With the Indicated Primary Cause of Death

Participants were categorized according to their primary cause of death. Deaths due to progressive disease or to another reason (Other) were not captured as serious adverse events (SAEs) and are thus not included in the SAE module.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. All participants who died by the completion of LTFU were analyzed.

ArmMeasureGroupValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With the Indicated Primary Cause of DeathProgression of lymphoma17 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Primary Cause of DeathUnknown1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Primary Cause of DeathOther7 participants
Unlabeled TSTNumber of Participants With the Indicated Primary Cause of DeathProgression of lymphoma6 participants
Unlabeled TSTNumber of Participants With the Indicated Primary Cause of DeathUnknown1 participants
Unlabeled TSTNumber of Participants With the Indicated Primary Cause of DeathOther3 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Primary Cause of DeathUnknown1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Primary Cause of DeathOther3 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Primary Cause of DeathProgression of lymphoma9 participants
Secondary

Number of Participants With the Indicated Serious Adverse Events (SAE) Related to Study Drug

An SAE is any event occurring at any dose that results in any of the following: death, a life-threatening adverse drug experience (ADE; at immediate risk of death from the experience as it occurred), inpatient hospitalization/prolongation of existing hospitalization, a persistent/significant disability/incapacity, or a congenital anomaly/birth defect. Medical events that may not result in death, be life-threatening, or require hospitalization may be considered to be a serious ADEs when based upon appropriate medical judgment. Relatedness was based on the investigator's medical judgement.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. All participants who experienced any SAE were analyzed.

ArmMeasureGroupValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugBurkitt's lymphoma1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugThrombocytopenia0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugProteus infection1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugBack pain1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugUlcer0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugMental status changes0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugAbdominal pain upper1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugMyelodysplastic Syndrome3 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSpinal cord compression1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSquamous cell carcinoma0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugBasal cell carcinoma1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugGastrointestinal haemorrhage1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugPneumonia1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugBacteraemia2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugHypothermia0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugPancytopenia1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSyncope0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugFebrile neutropenia0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugBronchitis0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugPyrexia1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugAcute myeloid leukaemia2 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugChronic myelomonocytic leukaemia0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugRetroperitoneal haemorrhage0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugCystitis0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugHaemoptysis0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugRenal cancer1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugConstipation1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSquamous cell carcinoma of skin0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugMyocardial infarction0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugCholecystitis acute1 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSubdural haematoma0 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSmall intestinal obstruction1 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugCystitis1 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugPneumonia0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSyncope1 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugRetroperitoneal haemorrhage1 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSmall intestinal obstruction0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSpinal cord compression0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugBronchitis0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugChronic myelomonocytic leukaemia0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugHaemoptysis0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSquamous cell carcinoma of skin0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSubdural haematoma0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugThrombocytopenia0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugUlcer0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugMyelodysplastic Syndrome0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugBasal cell carcinoma1 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugBacteraemia0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugAcute myeloid leukaemia0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugPancytopenia0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSquamous cell carcinoma0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugAbdominal pain upper0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugBack pain0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugBurkitt's lymphoma0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugCholecystitis acute0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugConstipation0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugFebrile neutropenia1 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugGastrointestinal haemorrhage0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugHypothermia1 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugMental status changes1 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugMyocardial infarction1 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugProteus infection0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugPyrexia0 participants
Unlabeled TSTNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugRenal cancer0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugBurkitt's lymphoma0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSquamous cell carcinoma of skin1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugMyocardial infarction0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugCholecystitis acute0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugHaemoptysis1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugConstipation0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugChronic myelomonocytic leukaemia1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugBronchitis1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugCystitis0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSyncope0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugPancytopenia1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugFebrile neutropenia0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugProteus infection0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugGastrointestinal haemorrhage0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSpinal cord compression0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugRenal cancer0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugHypothermia0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugAcute myeloid leukaemia0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugBacteraemia0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSmall intestinal obstruction0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugBasal cell carcinoma1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugPneumonia1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugMyelodysplastic Syndrome4 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugPyrexia0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugUlcer1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugMental status changes0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugAbdominal pain upper0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugThrombocytopenia1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugRetroperitoneal haemorrhage0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugBack pain0 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSubdural haematoma1 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Serious Adverse Events (SAE) Related to Study DrugSquamous cell carcinoma1 participants
Secondary

Number of Participants With the Indicated Type of Infection

An infection is the colonization of a host organism by a parasite species. Infecting parasites seek to use the host's resources to reproduce, often resulting in disease. Specimen samples of the body fluid are cultured for testing whether the infectious organism is present and grown in the culture media to assess the growth pattern of the organisms present in the specimen. The culture results could be positive or negative. The positive culture results indicate that the tested participant has the infection under investigation, in which case therapeutic treatment with anti-infective is required.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population

ArmMeasureGroupValue (NUMBER)
TST and Iodine I 131 TSTNumber of Participants With the Indicated Type of InfectionSepsis; n=18, 9, 72 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Type of InfectionAny Infection; n=42, 36, 1918 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Type of InfectionNo Infection; n=42, 36, 1924 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Type of InfectionPneumonia; n=18, 9, 72 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Type of InfectionEndocarditis/pericarditis; n=18, 9, 70 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Type of InfectionPeritonitis; n=18, 9, 70 participants
TST and Iodine I 131 TSTNumber of Participants With the Indicated Type of InfectionOther infections; n=18, 9, 717 participants
Unlabeled TSTNumber of Participants With the Indicated Type of InfectionPeritonitis; n=18, 9, 70 participants
Unlabeled TSTNumber of Participants With the Indicated Type of InfectionPneumonia; n=18, 9, 72 participants
Unlabeled TSTNumber of Participants With the Indicated Type of InfectionOther infections; n=18, 9, 78 participants
Unlabeled TSTNumber of Participants With the Indicated Type of InfectionSepsis; n=18, 9, 70 participants
Unlabeled TSTNumber of Participants With the Indicated Type of InfectionEndocarditis/pericarditis; n=18, 9, 71 participants
Unlabeled TSTNumber of Participants With the Indicated Type of InfectionAny Infection; n=42, 36, 199 participants
Unlabeled TSTNumber of Participants With the Indicated Type of InfectionNo Infection; n=42, 36, 1927 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Type of InfectionAny Infection; n=42, 36, 197 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Type of InfectionNo Infection; n=42, 36, 1912 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Type of InfectionSepsis; n=18, 9, 70 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Type of InfectionPeritonitis; n=18, 9, 70 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Type of InfectionPneumonia; n=18, 9, 70 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Type of InfectionOther infections; n=18, 9, 77 participants
Unlabeled TST CrossoverNumber of Participants With the Indicated Type of InfectionEndocarditis/pericarditis; n=18, 9, 70 participants
Secondary

Overall Survival

Overall survival is defined as the time from the treatment start date to the date of death by any cause.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. Only those participants who died during the study and during the follow-up period were analyzed.

ArmMeasureValue (MEDIAN)
TST and Iodine I 131 TSTOverall Survival71.5 months
Unlabeled TSTOverall Survival70.0 months
Unlabeled TST CrossoverOverall Survival51.4 months
Secondary

Time to Human Anti-Murine Antibodies (HAMA) Positivity From the First Dosimetric Dose

Tositumomab is a murine (mouse) antibody (immunoglobulin) of the IgG2a subclass. Participants in this study were evaluated to determine whether they developed an immune response to study treatment as evident by human anti-mouse antibodies (HAMA) after administration of tositumomab and iodine I 131 tositumomab. A positive HAMA value indicates that the participant developed human anti-mouse antibodies above the HAMA assay threshold, and a negative HAMA value indicates either the absence or below threshold level of human anti-mouse antibodies.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. Participants who converted from being negative for HAMA at Baseline to being positive for HAMA following treatment were evaluated.

ArmMeasureValue (MEAN)Dispersion
TST and Iodine I 131 TSTTime to Human Anti-Murine Antibodies (HAMA) Positivity From the First Dosimetric Dose163 daysStandard Deviation 108.4
Unlabeled TSTTime to Human Anti-Murine Antibodies (HAMA) Positivity From the First Dosimetric Dose62.6 daysStandard Deviation 49
Secondary

Time to Nadir and Time to Recovery to Baseline in Hematologic Laboratory Evaluations

Nadir is defined as the lowest laboratory value recorded following the administration of the study medication. Time to recovery to baseline in hematologic laboratory evaluations is the time required for recovery from nadir values to baseline values. Hematologic laboratory evaluations included ANC, hemoglobin (Hb), platelets (Plt), and WBC count.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. All participants with hematological toxicity were evaluated. The numbers analyzed in the category titles reflect the number of participants with the event of interest plus the number of participants who were censored. A censored value indicates that the participant did not have the event of interest.

ArmMeasureGroupValue (MEDIAN)
TST and Iodine I 131 TSTTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to nadir ANC, n=42, 35, 1948 days
TST and Iodine I 131 TSTTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to nadir Hb, n=42, 36, 1949 days
TST and Iodine I 131 TSTTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to nadir Plt, n=42, 36, 1936.5 days
TST and Iodine I 131 TSTTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to nadir WBC count, n=42, 36, 1946.5 days
TST and Iodine I 131 TSTTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to recovery to baseline ANC, n=42, 35, 1963 days
TST and Iodine I 131 TSTTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to recovery to baseline Hb, n=42, 36, 1969 days
TST and Iodine I 131 TSTTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to recovery to baseline Plt, n=42, 36, 1955 days
TST and Iodine I 131 TSTTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to recovery to baseline WBC, n=42, 36, 1976 days
Unlabeled TSTTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to nadir Plt, n=42, 36, 1943.5 days
Unlabeled TSTTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to recovery to baseline Plt, n=42, 36, 1944 days
Unlabeled TSTTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to nadir WBC count, n=42, 36, 1942.5 days
Unlabeled TSTTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to recovery to baseline ANC, n=42, 35, 1941 days
Unlabeled TSTTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to recovery to baseline Hb, n=42, 36, 1949 days
Unlabeled TSTTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to nadir ANC, n=42, 35, 1939 days
Unlabeled TSTTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to nadir Hb, n=42, 36, 1943.5 days
Unlabeled TSTTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to recovery to baseline WBC, n=42, 36, 1954 days
Unlabeled TST CrossoverTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to nadir Plt, n=42, 36, 1936 days
Unlabeled TST CrossoverTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to nadir Hb, n=42, 36, 1948 days
Unlabeled TST CrossoverTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to nadir ANC, n=42, 35, 1944 days
Unlabeled TST CrossoverTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to nadir WBC count, n=42, 36, 1943 days
Unlabeled TST CrossoverTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to recovery to baseline Plt, n=42, 36, 1962.5 days
Unlabeled TST CrossoverTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to recovery to baseline Hb, n=42, 36, 1997 days
Unlabeled TST CrossoverTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to recovery to baseline ANC, n=42, 35, 1984 days
Unlabeled TST CrossoverTime to Nadir and Time to Recovery to Baseline in Hematologic Laboratory EvaluationsTime to recovery to baseline WBC, n=42, 36, 1991 days
Secondary

Time to Progression of Disease or Death as Assessed by the Investigator

Progression-free survival or time to progression is defined as the time from the dosimetric dose to the first documented occurrence of disease progression or death.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. Participants who experienced progression or died (n=36, 33) and participants who were censored (n=6, 3) were analyzed. A censored value indicates that the participant did not have the event of interest.

ArmMeasureValue (MEDIAN)
TST and Iodine I 131 TSTTime to Progression of Disease or Death as Assessed by the Investigator6.0 months
Unlabeled TSTTime to Progression of Disease or Death as Assessed by the Investigator3.8 months
Secondary

Time to Progression of Disease or Death in Participants Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator

Progression-free survival or time to progression is defined as the time from the dosimetric dose to the first documented occurrence of disease progression or death.

Time frame: Participants were evaluated for up to two years in Study BEX104515 and for up to 11.9 years in Study BEX104526.

Population: ITT-Exposed Population. All participants receiving Unlabeled TST who received the crossover treatment and those who progressed/died were analyzed. Participants who experienced progression or died (n=18, 17) and participants who were censored (n=1, 2) were analyzed. A censored value indicates that the participant did not have the event of interest.

ArmMeasureValue (MEDIAN)
TST and Iodine I 131 TSTTime to Progression of Disease or Death in Participants Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator3.1 months
Unlabeled TSTTime to Progression of Disease or Death in Participants Before and After Crossover From Unlabeled TST to TST and Iodine I 131 TST as Assessed by the Investigator15.0 months

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026