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Safety Study of the Proteasome Inhibitor PR-171 (Carfilzomib for Injection) in Patients With Hematological Malignancies

A Phase I Study of the Safety and Pharmacokinetics of Escalating Intravenous Doses of the Proteasome Inhibitor PR-171 in Patients With Hematological Malignancies

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00150462
Enrollment
48
Registered
2005-09-08
Start date
2005-09-30
Completion date
2009-10-31
Last updated
2017-05-02

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

Conditions

Hodgkin's Disease, Multiple Myeloma, Non-Hodgkin's Lymphoma, Waldenstrom's Macroglobulinemia

Keywords

Hematological, Proteasome, Myeloma, Lymphoma

Brief summary

The purpose of this study is to test the safety and tolerability of carfilzomib at different dose levels on hematological cancers such as multiple myeloma, non-Hodgkin's lymphoma, Hodgkin's disease, or Waldenstrom's macroglobulinemia. Carfilzomib is a proteasome inhibitor, an enzyme responsible for degrading a wide variety of cellular proteins.

Interventions

DRUGCarfilzomib

Administered as an IV bolus dose

DRUGDexamethasone

Administered orally prior to carfilzomib

Sponsors

Amgen
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Written informed consent in accordance with federal, local, and institutional guidelines 2. Males and females ≥18 years of age 3. Histologically confirmed diagnosis of one of the hematologic malignancies below: * Multiple myeloma (MM) * Non-Hodgkin's lymphoma (NHL) * Waldenström's Macroglobulinemia (WM) * Hodgkin's disease (HD) 4. Subjects who are refractory or relapsed following at least two prior therapies 5. Eastern Cooperative Oncology Group (ECOG) Performance Status of 0-2 6. Adequate cardiovascular function without symptomatic ischemia, conduction abnormalities uncontrolled by conventional intervention, or myocardial infarction in the previous six months 7. Adequate hepatic function, with bilirubin \< 2.0 times the upper limit of normal, and aspartate aminotransferase (AST) and alanine aminotransferase (ALT) of \< 3.0 times the upper limit of normal 8. Total white blood cell (WBC) count ≥ 2,000/mm³, absolute neutrophil count (ANC) ≥ 1000/mm³, hemoglobin ≥ 8.0 g/dL, and platelet count ≥ 50,000/mm³ * Screening ANC should be independent of granulocyte colony stimulating factor (G-CSF) or granulocyte-macrophage colony-stimulating factor (GM-CSF) support for ≥ 1 week and of pegylated G-CSF for ≥ 2 weeks) * Subjects receiving supportive care including erythropoietin, darbepoetin and/or bisphosphonates can continue to do so, but must be transfusion independent; subjects receiving erythropoietic support must remain on the same dose for the first 28 days of study participation 9. An estimated creatinine clearance of ≥ 30 mL/min, calculated using the formula of Cockroft and Gault 10. Serum creatinine ≤ 2.0 mg/dL 11. Uric acid, if elevated, must be corrected to within laboratory normal range prior to dosing 12. Female subjects of child-bearing potential must agree to use dual methods of contraception and have a negative serum pregnancy test. Male subjects must use an effective barrier method of contraception throughout the study and for three months following the last dose if sexually active with a female of child-bearing potential.

Exclusion criteria

1. Female subjects who are pregnant or lactating 2. Subjects who are transfusion dependent 3. Subjects with NHL or HL who have received steroid therapy in the previous seven days 4. Subjects with MM or Waldenström's Macroglobulinemia who have received steroid therapy in the previous three weeks, except for MM subjects in the Carfilzomib + DEX Expansion Cohort, where previous treatment with dexamethasone will be allowed. The dose and schedule of administration of dexamethasone will be adjusted to that used in the protocol 5. Radiation, chemotherapy, or immunotherapy in the previous four weeks, or subjects who, in the judgment of the Investigator, have not recovered from the effects of previous therapy 6. For the Dose Escalation period, subjects who have received prior radioimmunotherapy with anti-cluster of differentiation (CD)20 monoclonal antibodies such as Bexxar® or Zevalin®; subjects treated with these products will be allowed in the Dose Expansion period 7. Subjects who have received allogeneic stem cell transplant therapy 8. Subjects with NHL or HL who have received autologous stem cell transplant therapy and have relapsed within 100 days of therapy 9. Rituxan therapy within three months before Day 1 unless there is evidence of disease progression 10. Major surgery within three weeks before Day 1 11. Congestive heart failure (CHF) (New York Heart Association class III to IV) 12. Acute active infection requiring systemic antibiotics, antivirals, or antifungals within two weeks prior to first dose 13. Subjects who are known or suspected of having human immunodeficiency virus (HIV) infection or who are HIV seropositive 14. Active hepatitis A, B, or C infection; or positive for Hepatitis C ribonucleic acid (RNA) or hepatitis B antigen 15. Non-hematologic malignancy within the past three years except a) adequately treated basal cell or squamous cell skin cancer, b) carcinoma in situ of the cervix, or c) prostate cancer with stable prostate specific antigen (PSA) levels for three years 16. Subjects with treatment-related myelodysplastic disorder 17. Subjects with known brain metastasis (active central nervous system \[CNS\] disease only) 18. Serious psychiatric or medical conditions that could interfere with treatment 19. Participation in an investigational therapeutic study within one month prior to Day 1 20. Significant neurotoxicity (Grade 2 or higher with pain) at the time of study initiation 21. Concurrent therapy with approved or investigative anticancer therapeutics 22. Subjects with previous hypersensitivity to bortezomib injection 23. Subjects with contraindications to receiving allopurinol 24. Subjects in whom the required program of oral and intravenous fluid hydration is contraindicated, e.g., due to pre-existing pulmonary, cardiac, or renal impairment 25. Subjects with known or suspected amyloidosis 26. Subjects with pleural effusions requiring thoracentesis or ascites requiring paracentesis

Design outcomes

Primary

MeasureTime frameDescription
Area Under the Concentration-time Curve to Last Measureable Timepoint (AUClast) for CarfilzomibCycle 1, Day 1 at predose, 5, 15, and 30 minutes, and 1, 2, 4, and 24 hours post dose.
Area Under the Concentration-time Curve Extrapolated to Infinity (AUCinf) for CarfilzomibCycle 1, Day 1 at predose, 5, 15, and 30 minutes, and 1, 2, 4, and 24 hours post dose.
Number of Participants With Dose-limiting Toxicities (DLTs)28 daysA DLT was defined as any of the following occurring in the first 28 days of study participation: Nonhematologic: * \> Grade 2 neuropathy with pain * ≥ Grade 3 nonhematologic toxicity (excluding nausea, vomiting, or diarrhea) * ≥ Grade 3 nausea, vomiting, or diarrhea uncontrolled by maximal antiemetic/antidiarrheal therapy Hematologic: * Grade 4 neutropenia (absolute neutrophil count \[ANC\] \< 0.5 × 10ˆ9/L) lasting ≥ 14 days without hematopoietic growth factor support * Febrile neutropenia (ANC \< 1.0 × 10ˆ9/L with a fever ≥ 38.3°C) * Grade 4 thrombocytopenia (platelets \< 25.0 × 10ˆ9/L) or thrombocytopenia associated with bleeding. Toxicities were graded according to the Common Terminology Criteria for Adverse Events (CTCAE) of the National Cancer Institute (NCI) version 3.0.
Maximum Observed Plasma Concentration of Carfilzomib (Cmax)Cycle 1, Day 1 at predose, 5, 15, and 30 minutes, and 1, 2, 4, and 24 hours post dose.
Time to Maximum Observed Plasma Concentration of Carfilzomib (Tmax)Cycle 1, Day 1 at predose, 5, 15, and 30 minutes, and 1, 2, 4, and 24 hours post dose.

Secondary

MeasureTime frameDescription
Duration of ResponseFrom the first dose of study drug until 30 days after the last dose. Median duration of treatment was 6.3 weeks in the dose escalation phase and 6.4 weeks in the dose expansion phase.Duration of objective response is defined as the time from the date of first documented assessment of clinical response (confirmed or unconfirmed complete response, partial response, or minimal response) to the date of documented assessment of progressive disease or death, whichever comes first, plus one day. Participants without tumor progression or death were censored at the date of their last valid clinical response assessment. Median duration of response was calculated using the Kaplan-Meier method.
Time to ProgressionFrom the first dose of study drug until 30 days after the last dose. Median duration of treatment was 6.3 weeks in the dose escalation phase and 6.4 weeks in the dose expansion phase.Time to progressive disease is defined as the time from the date of Cycle 1, Day 1 of treatment to the date of documented assessment of progressive disease, plus one day. Participants without tumor progression were censored at the date of their last clinical response assessment. Median time to progression was calculated using the Kaplan-Meier method.
Progression-free SurvivalFrom the first dose of study drug until 30 days after the last dose. Median duration of treatment was 6.3 weeks in the dose escalation phase and 6.4 weeks in the dose expansion phase.Progression-free survival is defined as the time from the date of Cycle 1, Day 1 of treatment to the date of documented assessment of progressive disease or death, whichever comes first, plus one day. Participants without tumor progression or death were censored at the date of their last valid clinical response assessment. Median progression-free survival was calculated using the Kaplan-Meier method.
Best Clinical Response to TreatmentFrom the first dose of study drug until 30 days after the last dose. Median duration of treatment was 6.3 weeks in the dose escalation phase and 6.4 weeks in the dose expansion phase.Disease response criteria for NHL were according to the International Working Group Criteria for Non-Hodgkin's Lymphoma. Disease response criteria for Multiple Myeloma were according to the European Group for Blood and Marrow Transplantation (EBMT). Disease response criteria for WM were according to the consensus panel recommendations from the Second International Workshop on Waldenström's Macroglobulinemia. The disease response criteria for Hodgkin's Lymphoma are defined as follows: * Complete response: total resolution of measurable disease parameters. * Partial response: a ≥ 50% resolution without the appearance of new disease. * Stable disease: between \< 50% resolution and ≤ 25% increases in measurable disease parameters without appearance of new disease. * Progressive disease: an increase of \> 25% in measurable disease parameters. Best clinical response is the best response observed from the start of study treatment until disease progression or death.

Countries

United States

Participant flow

Recruitment details

Adults with with multiple myeloma (MM)-both secretory and nonsecretory, non-Hodgkin's lymphoma (NHL), Hodgkin's disease (HD), or Waldenström's macroglobulinemia (WM) were eligible for enrollment in this study.

Pre-assignment details

The study was divided into a sequential Dose Escalation phase (Part 1; Arms 1-9), followed by a Dose Expansion phase (Part 2; Arms 10-11) consisting of a carfilzomib-only cohort and a carfilzomib-plus dexamethasone cohort.

Participants by arm

ArmCount
CFZ 1.2 mg/m²
Participants received carfilzomib (CFZ) 1.2 mg/m² administered by intravenous bolus on Days 1, 2, 8, 9, 15 and 16 in 28-day treatment cycles for up to 12 cycles.
3
CFZ 2.4 mg/m²
Participants received carfilzomib 2.4 mg/m² administered by intravenous bolus on Days 1, 2, 8, 9, 15 and 16 in 28-day treatment cycles for up to 12 cycles.
3
CFZ 4.0 mg/m²
Participants received carfilzomib 4.0 mg/m² administered by intravenous bolus on Days 1, 2, 8, 9, 15 and 16 in 28-day treatment cycles for up to 12 cycles.
4
CFZ 6.0 mg/m²
Participants received carfilzomib 6.0 mg/m² administered by intravenous bolus on Days 1, 2, 8, 9, 15 and 16 in 28-day treatment cycles for up to 12 cycles.
3
CFZ 8.4 mg/m²
Participants received carfilzomib 8.4 mg/m² administered by intravenous bolus on Days 1, 2, 8, 9, 15 and 16 in 28-day treatment cycles for up to 12 cycles.
3
CFZ 11.0 mg/m²
Participants received carfilzomib 11.0 mg/m² administered by intravenous bolus on Days 1, 2, 8, 9, 15 and 16 in 28-day treatment cycles for up to 12 cycles.
4
CFZ 15.0 mg/m²
Participants received carfilzomib 15.0 mg/m² administered by intravenous bolus on Days 1, 2, 8, 9, 15 and 16 in 28-day treatment cycles for up to 12 cycles.
3
CFZ 20.0 mg/m²
Participants received carfilzomib 20.0 mg/m² administered by intravenous bolus on Days 1, 2, 8, 9, 15 and 16 in 28-day treatment cycles for up to 12 cycles.
8
CFZ 27.0 mg/m²
Participants received carfilzomib 27.0 mg/m² administered by intravenous bolus on Days 1, 2, 8, 9, 15 and 16 in 28-day treatment cycles for up to 12 cycles.
6
CFZ 20/27 mg/m²
Participants received carfilzomib 20 mg/m² administered by intravenous bolus on Cycle 1 Days 1, 2, 8, 9, 15 and 16, then 27 mg/m² in all subsequent cycles, for up to 12 cycles.
7
CFZ 20/27 mg/m² + DEX
Participants received carfilzomib 20 mg/m² administered by intravenous bolus on Cycle 1 Days 1, 2, 8, 9, 15 and 16, then 27 mg/m² in all subsequent cycles, for up to 12 cycles. Participants also received 20 mg dexamethasone (DEX) administered before each dose of carfilzomib (i.e. 40 mg weekly).
4
Total48

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009FG010
Overall StudyAdverse Event00010002010
Overall StudyDeath01000000100
Overall StudyDisease Progression or Relapse31212235532
Overall StudyOther00000000011
Overall StudyPhysician Decision00110000000
Overall StudyWithdrawal by Subject01101201010

Baseline characteristics

CharacteristicCFZ 1.2 mg/m²CFZ 2.4 mg/m²CFZ 4.0 mg/m²CFZ 6.0 mg/m²CFZ 8.4 mg/m²CFZ 11.0 mg/m²CFZ 15.0 mg/m²CFZ 20.0 mg/m²CFZ 27.0 mg/m²CFZ 20/27 mg/m²CFZ 20/27 mg/m² + DEXTotal
Age, Continuous
Dose Escalation (Part 1)
62.5 years
STANDARD_DEVIATION 17.47
69.6 years
STANDARD_DEVIATION 4.8
55.3 years
STANDARD_DEVIATION 21.71
51.7 years
STANDARD_DEVIATION 6.2
61.6 years
STANDARD_DEVIATION 9.15
61.3 years
STANDARD_DEVIATION 3.76
50.3 years
STANDARD_DEVIATION 12.99
60.6 years
STANDARD_DEVIATION 11.99
67.6 years
STANDARD_DEVIATION 9.82
NA yearsNA years60.6 years
STANDARD_DEVIATION 12.25
Age, Continuous
Dose Expansion (Part 2)
NA yearsNA yearsNA yearsNA yearsNA yearsNA yearsNA yearsNA yearsNA years66.3 years
STANDARD_DEVIATION 9.21
54.3 years
STANDARD_DEVIATION 13.57
61.9 years
STANDARD_DEVIATION 11.96
Disease Diagnosis
Hodgkin's Disease
0 participants0 participants1 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants1 participants
Disease Diagnosis
Multiple Myeloma
0 participants3 participants0 participants2 participants1 participants2 participants2 participants6 participants5 participants3 participants4 participants28 participants
Disease Diagnosis
Non-Hodgkin's Lymphoma
3 participants0 participants3 participants1 participants2 participants2 participants1 participants2 participants1 participants2 participants0 participants17 participants
Disease Diagnosis
Waldenstrom's Macroglobulinemia
0 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants2 participants0 participants2 participants
Race/Ethnicity, Customized
African American
0 participants0 participants0 participants0 participants1 participants0 participants0 participants0 participants0 participants1 participants1 participants3 participants
Race/Ethnicity, Customized
Caucasian
3 participants2 participants3 participants3 participants2 participants4 participants3 participants7 participants6 participants6 participants3 participants42 participants
Race/Ethnicity, Customized
Hispanic
0 participants1 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants0 participants1 participants
Race/Ethnicity, Customized
Native American
0 participants0 participants1 participants0 participants0 participants0 participants0 participants1 participants0 participants0 participants0 participants2 participants
Sex: Female, Male
Female
0 Participants2 Participants3 Participants2 Participants1 Participants4 Participants1 Participants2 Participants2 Participants2 Participants3 Participants22 Participants
Sex: Female, Male
Male
3 Participants1 Participants1 Participants1 Participants2 Participants0 Participants2 Participants6 Participants4 Participants5 Participants1 Participants26 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
EG010
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
3 / 33 / 34 / 43 / 33 / 34 / 43 / 38 / 86 / 67 / 74 / 4
serious
Total, serious adverse events
2 / 31 / 33 / 42 / 32 / 32 / 41 / 33 / 84 / 63 / 72 / 4

Outcome results

Primary

Area Under the Concentration-time Curve Extrapolated to Infinity (AUCinf) for Carfilzomib

Time frame: Cycle 1, Day 1 at predose, 5, 15, and 30 minutes, and 1, 2, 4, and 24 hours post dose.

Population: Participants with available pharmacokinetic (PK) data. AUCinf was only determined for cohorts receiving carfilzomib ≥ 11 mg/m². For cohorts with carfilzomib dose at 1.2-8.4 mg/m², carfilzomib was measurable at too few time points to allow a good estimation. Participants in the two Dose Expansion cohorts (20/27 mg/m²) were combined for PK analyses.

ArmMeasureValue (MEAN)Dispersion
CFZ 11.0 mg/m²Area Under the Concentration-time Curve Extrapolated to Infinity (AUCinf) for Carfilzomib4056 ng*minute/mLStandard Deviation 3698
CFZ 15.0 mg/m²Area Under the Concentration-time Curve Extrapolated to Infinity (AUCinf) for Carfilzomib1420 ng*minute/mLStandard Deviation 922
CFZ 20.0 mg/m²Area Under the Concentration-time Curve Extrapolated to Infinity (AUCinf) for Carfilzomib4942 ng*minute/mLStandard Deviation 3497
CFZ 27.0 mg/m²Area Under the Concentration-time Curve Extrapolated to Infinity (AUCinf) for Carfilzomib3417 ng*minute/mLStandard Deviation 3962
CFZ 20/27 mg/m²Area Under the Concentration-time Curve Extrapolated to Infinity (AUCinf) for Carfilzomib4997 ng*minute/mLStandard Deviation 5812
Primary

Area Under the Concentration-time Curve to Last Measureable Timepoint (AUClast) for Carfilzomib

Time frame: Cycle 1, Day 1 at predose, 5, 15, and 30 minutes, and 1, 2, 4, and 24 hours post dose.

Population: Participants with available pharmacokinetic (PK) data. AUClast was only determined for cohorts receiving carfilzomib ≥ 11 mg/m². For cohorts with carfilzomib dose at 1.2-8.4 mg/m², carfilzomib was measurable at too few time points to allow a good estimation. Participants in the two Dose Expansion cohorts (20/27 mg/m²) were combined for PK analyses.

ArmMeasureValue (MEAN)Dispersion
CFZ 11.0 mg/m²Area Under the Concentration-time Curve to Last Measureable Timepoint (AUClast) for Carfilzomib4049 ng*minute/mLStandard Deviation 3695
CFZ 15.0 mg/m²Area Under the Concentration-time Curve to Last Measureable Timepoint (AUClast) for Carfilzomib1414 ng*minute/mLStandard Deviation 919
CFZ 20.0 mg/m²Area Under the Concentration-time Curve to Last Measureable Timepoint (AUClast) for Carfilzomib4911 ng*minute/mLStandard Deviation 3495
CFZ 27.0 mg/m²Area Under the Concentration-time Curve to Last Measureable Timepoint (AUClast) for Carfilzomib3409 ng*minute/mLStandard Deviation 3964
CFZ 20/27 mg/m²Area Under the Concentration-time Curve to Last Measureable Timepoint (AUClast) for Carfilzomib4970 ng*minute/mLStandard Deviation 5817
Primary

Maximum Observed Plasma Concentration of Carfilzomib (Cmax)

Time frame: Cycle 1, Day 1 at predose, 5, 15, and 30 minutes, and 1, 2, 4, and 24 hours post dose.

Population: Participants with available pharmacokinetic (PK) data. Cmax was only determined for cohorts receiving carfilzomib ≥ 11 mg/m². For cohorts with carfilzomib dose at 1.2-8.4 mg/m², carfilzomib was measurable at too few time points to allow a good estimation. Participants in the two Dose Expansion cohorts (20/27 mg/m²) were combined for PK analyses.

ArmMeasureValue (MEAN)Dispersion
CFZ 11.0 mg/m²Maximum Observed Plasma Concentration of Carfilzomib (Cmax)505.17 ng/mLStandard Deviation 485.12
CFZ 15.0 mg/m²Maximum Observed Plasma Concentration of Carfilzomib (Cmax)142.67 ng/mLStandard Deviation 97.22
CFZ 20.0 mg/m²Maximum Observed Plasma Concentration of Carfilzomib (Cmax)527.50 ng/mLStandard Deviation 405.59
CFZ 27.0 mg/m²Maximum Observed Plasma Concentration of Carfilzomib (Cmax)406.08 ng/mLStandard Deviation 517.29
CFZ 20/27 mg/m²Maximum Observed Plasma Concentration of Carfilzomib (Cmax)390.66 ng/mLStandard Deviation 492.92
Primary

Number of Participants With Dose-limiting Toxicities (DLTs)

A DLT was defined as any of the following occurring in the first 28 days of study participation: Nonhematologic: * \> Grade 2 neuropathy with pain * ≥ Grade 3 nonhematologic toxicity (excluding nausea, vomiting, or diarrhea) * ≥ Grade 3 nausea, vomiting, or diarrhea uncontrolled by maximal antiemetic/antidiarrheal therapy Hematologic: * Grade 4 neutropenia (absolute neutrophil count \[ANC\] \< 0.5 × 10ˆ9/L) lasting ≥ 14 days without hematopoietic growth factor support * Febrile neutropenia (ANC \< 1.0 × 10ˆ9/L with a fever ≥ 38.3°C) * Grade 4 thrombocytopenia (platelets \< 25.0 × 10ˆ9/L) or thrombocytopenia associated with bleeding. Toxicities were graded according to the Common Terminology Criteria for Adverse Events (CTCAE) of the National Cancer Institute (NCI) version 3.0.

Time frame: 28 days

Population: Safety-evaluable: All participants who were enrolled and received at least 1 dose of carfilzomib

ArmMeasureValue (NUMBER)
CFZ 1.2 mg/m²Number of Participants With Dose-limiting Toxicities (DLTs)1 participants
CFZ 2.4 mg/m²Number of Participants With Dose-limiting Toxicities (DLTs)0 participants
CFZ 4.0 mg/m²Number of Participants With Dose-limiting Toxicities (DLTs)0 participants
CFZ 6.0 mg/m²Number of Participants With Dose-limiting Toxicities (DLTs)0 participants
CFZ 8.4 mg/m²Number of Participants With Dose-limiting Toxicities (DLTs)0 participants
CFZ 11.0 mg/m²Number of Participants With Dose-limiting Toxicities (DLTs)0 participants
CFZ 15.0 mg/m²Number of Participants With Dose-limiting Toxicities (DLTs)0 participants
CFZ 20.0 mg/m²Number of Participants With Dose-limiting Toxicities (DLTs)1 participants
CFZ 27.0 mg/m²Number of Participants With Dose-limiting Toxicities (DLTs)1 participants
CFZ 20/27 mg/m²Number of Participants With Dose-limiting Toxicities (DLTs)0 participants
CFZ 20/27 mg/m² + DEXNumber of Participants With Dose-limiting Toxicities (DLTs)1 participants
Primary

Time to Maximum Observed Plasma Concentration of Carfilzomib (Tmax)

Time frame: Cycle 1, Day 1 at predose, 5, 15, and 30 minutes, and 1, 2, 4, and 24 hours post dose.

Population: Participants with available pharmacokinetic (PK) data. Tmax was only determined for cohorts receiving carfilzomib ≥ 11 mg/m². For cohorts with carfilzomib dose at 1.2-8.4 mg/m², carfilzomib was measurable at too few time points to allow a good estimation. Participants in the two Dose Expansion cohorts (20/27 mg/m²) were combined for PK analyses.

ArmMeasureValue (MEAN)Dispersion
CFZ 11.0 mg/m²Time to Maximum Observed Plasma Concentration of Carfilzomib (Tmax)5 minutesStandard Deviation 0
CFZ 15.0 mg/m²Time to Maximum Observed Plasma Concentration of Carfilzomib (Tmax)6 minutesStandard Deviation 1
CFZ 20.0 mg/m²Time to Maximum Observed Plasma Concentration of Carfilzomib (Tmax)7 minutesStandard Deviation 2
CFZ 27.0 mg/m²Time to Maximum Observed Plasma Concentration of Carfilzomib (Tmax)6 minutesStandard Deviation 2
CFZ 20/27 mg/m²Time to Maximum Observed Plasma Concentration of Carfilzomib (Tmax)16 minutesStandard Deviation 11
Secondary

Best Clinical Response to Treatment

Disease response criteria for NHL were according to the International Working Group Criteria for Non-Hodgkin's Lymphoma. Disease response criteria for Multiple Myeloma were according to the European Group for Blood and Marrow Transplantation (EBMT). Disease response criteria for WM were according to the consensus panel recommendations from the Second International Workshop on Waldenström's Macroglobulinemia. The disease response criteria for Hodgkin's Lymphoma are defined as follows: * Complete response: total resolution of measurable disease parameters. * Partial response: a ≥ 50% resolution without the appearance of new disease. * Stable disease: between \< 50% resolution and ≤ 25% increases in measurable disease parameters without appearance of new disease. * Progressive disease: an increase of \> 25% in measurable disease parameters. Best clinical response is the best response observed from the start of study treatment until disease progression or death.

Time frame: From the first dose of study drug until 30 days after the last dose. Median duration of treatment was 6.3 weeks in the dose escalation phase and 6.4 weeks in the dose expansion phase.

Population: Biologic response-evaluable: All participants who received at least 1 cycle of carfilzomib and had both baseline and at least 1 post-baseline disease assessment.

ArmMeasureGroupValue (NUMBER)
CFZ 1.2 mg/m²Best Clinical Response to TreatmentComplete Response0 participants
CFZ 1.2 mg/m²Best Clinical Response to TreatmentProgressive Disease1 participants
CFZ 1.2 mg/m²Best Clinical Response to TreatmentUnknown0 participants
CFZ 1.2 mg/m²Best Clinical Response to TreatmentStable Disease/No Change0 participants
CFZ 1.2 mg/m²Best Clinical Response to TreatmentPartial Response0 participants
CFZ 1.2 mg/m²Best Clinical Response to TreatmentMinimal Response0 participants
CFZ 2.4 mg/m²Best Clinical Response to TreatmentPartial Response0 participants
CFZ 2.4 mg/m²Best Clinical Response to TreatmentStable Disease/No Change1 participants
CFZ 2.4 mg/m²Best Clinical Response to TreatmentMinimal Response0 participants
CFZ 2.4 mg/m²Best Clinical Response to TreatmentProgressive Disease1 participants
CFZ 2.4 mg/m²Best Clinical Response to TreatmentComplete Response0 participants
CFZ 2.4 mg/m²Best Clinical Response to TreatmentUnknown0 participants
CFZ 4.0 mg/m²Best Clinical Response to TreatmentStable Disease/No Change1 participants
CFZ 4.0 mg/m²Best Clinical Response to TreatmentComplete Response0 participants
CFZ 4.0 mg/m²Best Clinical Response to TreatmentUnknown1 participants
CFZ 4.0 mg/m²Best Clinical Response to TreatmentPartial Response0 participants
CFZ 4.0 mg/m²Best Clinical Response to TreatmentProgressive Disease1 participants
CFZ 4.0 mg/m²Best Clinical Response to TreatmentMinimal Response0 participants
CFZ 6.0 mg/m²Best Clinical Response to TreatmentPartial Response0 participants
CFZ 6.0 mg/m²Best Clinical Response to TreatmentProgressive Disease0 participants
CFZ 6.0 mg/m²Best Clinical Response to TreatmentUnknown0 participants
CFZ 6.0 mg/m²Best Clinical Response to TreatmentComplete Response0 participants
CFZ 6.0 mg/m²Best Clinical Response to TreatmentStable Disease/No Change2 participants
CFZ 6.0 mg/m²Best Clinical Response to TreatmentMinimal Response0 participants
CFZ 8.4 mg/m²Best Clinical Response to TreatmentPartial Response0 participants
CFZ 8.4 mg/m²Best Clinical Response to TreatmentMinimal Response0 participants
CFZ 8.4 mg/m²Best Clinical Response to TreatmentStable Disease/No Change1 participants
CFZ 8.4 mg/m²Best Clinical Response to TreatmentProgressive Disease2 participants
CFZ 8.4 mg/m²Best Clinical Response to TreatmentUnknown0 participants
CFZ 8.4 mg/m²Best Clinical Response to TreatmentComplete Response0 participants
CFZ 11.0 mg/m²Best Clinical Response to TreatmentProgressive Disease2 participants
CFZ 11.0 mg/m²Best Clinical Response to TreatmentComplete Response0 participants
CFZ 11.0 mg/m²Best Clinical Response to TreatmentPartial Response0 participants
CFZ 11.0 mg/m²Best Clinical Response to TreatmentStable Disease/No Change1 participants
CFZ 11.0 mg/m²Best Clinical Response to TreatmentMinimal Response0 participants
CFZ 11.0 mg/m²Best Clinical Response to TreatmentUnknown0 participants
CFZ 15.0 mg/m²Best Clinical Response to TreatmentProgressive Disease1 participants
CFZ 15.0 mg/m²Best Clinical Response to TreatmentPartial Response1 participants
CFZ 15.0 mg/m²Best Clinical Response to TreatmentUnknown0 participants
CFZ 15.0 mg/m²Best Clinical Response to TreatmentStable Disease/No Change0 participants
CFZ 15.0 mg/m²Best Clinical Response to TreatmentMinimal Response0 participants
CFZ 15.0 mg/m²Best Clinical Response to TreatmentComplete Response0 participants
CFZ 20.0 mg/m²Best Clinical Response to TreatmentMinimal Response0 participants
CFZ 20.0 mg/m²Best Clinical Response to TreatmentStable Disease/No Change2 participants
CFZ 20.0 mg/m²Best Clinical Response to TreatmentPartial Response1 participants
CFZ 20.0 mg/m²Best Clinical Response to TreatmentProgressive Disease3 participants
CFZ 20.0 mg/m²Best Clinical Response to TreatmentComplete Response0 participants
CFZ 20.0 mg/m²Best Clinical Response to TreatmentUnknown0 participants
CFZ 27.0 mg/m²Best Clinical Response to TreatmentMinimal Response1 participants
CFZ 27.0 mg/m²Best Clinical Response to TreatmentProgressive Disease1 participants
CFZ 27.0 mg/m²Best Clinical Response to TreatmentComplete Response0 participants
CFZ 27.0 mg/m²Best Clinical Response to TreatmentStable Disease/No Change1 participants
CFZ 27.0 mg/m²Best Clinical Response to TreatmentUnknown0 participants
CFZ 27.0 mg/m²Best Clinical Response to TreatmentPartial Response2 participants
CFZ 20/27 mg/m²Best Clinical Response to TreatmentComplete Response0 participants
CFZ 20/27 mg/m²Best Clinical Response to TreatmentUnknown0 participants
CFZ 20/27 mg/m²Best Clinical Response to TreatmentStable Disease/No Change2 participants
CFZ 20/27 mg/m²Best Clinical Response to TreatmentMinimal Response0 participants
CFZ 20/27 mg/m²Best Clinical Response to TreatmentPartial Response2 participants
CFZ 20/27 mg/m²Best Clinical Response to TreatmentProgressive Disease2 participants
CFZ 20/27 mg/m² + DEXBest Clinical Response to TreatmentUnknown0 participants
CFZ 20/27 mg/m² + DEXBest Clinical Response to TreatmentComplete Response0 participants
CFZ 20/27 mg/m² + DEXBest Clinical Response to TreatmentPartial Response0 participants
CFZ 20/27 mg/m² + DEXBest Clinical Response to TreatmentProgressive Disease2 participants
CFZ 20/27 mg/m² + DEXBest Clinical Response to TreatmentMinimal Response1 participants
CFZ 20/27 mg/m² + DEXBest Clinical Response to TreatmentStable Disease/No Change0 participants
Secondary

Duration of Response

Duration of objective response is defined as the time from the date of first documented assessment of clinical response (confirmed or unconfirmed complete response, partial response, or minimal response) to the date of documented assessment of progressive disease or death, whichever comes first, plus one day. Participants without tumor progression or death were censored at the date of their last valid clinical response assessment. Median duration of response was calculated using the Kaplan-Meier method.

Time frame: From the first dose of study drug until 30 days after the last dose. Median duration of treatment was 6.3 weeks in the dose escalation phase and 6.4 weeks in the dose expansion phase.

Population: Biologic response-evaluable participants with an objective response

ArmMeasureValue (MEDIAN)
CFZ 15.0 mg/m²Duration of Response308.0 days
CFZ 20.0 mg/m²Duration of Response176.0 days
CFZ 27.0 mg/m²Duration of Response225.0 days
CFZ 20/27 mg/m²Duration of ResponseNA days
CFZ 20/27 mg/m² + DEXDuration of ResponseNA days
Secondary

Progression-free Survival

Progression-free survival is defined as the time from the date of Cycle 1, Day 1 of treatment to the date of documented assessment of progressive disease or death, whichever comes first, plus one day. Participants without tumor progression or death were censored at the date of their last valid clinical response assessment. Median progression-free survival was calculated using the Kaplan-Meier method.

Time frame: From the first dose of study drug until 30 days after the last dose. Median duration of treatment was 6.3 weeks in the dose escalation phase and 6.4 weeks in the dose expansion phase.

Population: Biologic response-evaluable population

ArmMeasureValue (MEDIAN)
CFZ 1.2 mg/m²Progression-free Survival114.0 days
CFZ 2.4 mg/m²Progression-free Survival232.0 days
CFZ 4.0 mg/m²Progression-free SurvivalNA days
CFZ 6.0 mg/m²Progression-free SurvivalNA days
CFZ 8.4 mg/m²Progression-free Survival55.0 days
CFZ 11.0 mg/m²Progression-free Survival48.0 days
CFZ 15.0 mg/m²Progression-free Survival186.0 days
CFZ 20.0 mg/m²Progression-free Survival110.5 days
CFZ 27.0 mg/m²Progression-free Survival225.0 days
CFZ 20/27 mg/m²Progression-free SurvivalNA days
CFZ 20/27 mg/m² + DEXProgression-free Survival49.0 days
Secondary

Time to Progression

Time to progressive disease is defined as the time from the date of Cycle 1, Day 1 of treatment to the date of documented assessment of progressive disease, plus one day. Participants without tumor progression were censored at the date of their last clinical response assessment. Median time to progression was calculated using the Kaplan-Meier method.

Time frame: From the first dose of study drug until 30 days after the last dose. Median duration of treatment was 6.3 weeks in the dose escalation phase and 6.4 weeks in the dose expansion phase.

Population: Biologic response-evaluable population

ArmMeasureValue (MEDIAN)
CFZ 1.2 mg/m²Time to Progression114.0 days
CFZ 2.4 mg/m²Time to Progression232.0 days
CFZ 4.0 mg/m²Time to ProgressionNA days
CFZ 6.0 mg/m²Time to ProgressionNA days
CFZ 8.4 mg/m²Time to Progression55.0 days
CFZ 11.0 mg/m²Time to Progression48.0 days
CFZ 15.0 mg/m²Time to Progression186.0 days
CFZ 20.0 mg/m²Time to Progression110.5 days
CFZ 27.0 mg/m²Time to Progression225.0 days
CFZ 20/27 mg/m²Time to ProgressionNA days
CFZ 20/27 mg/m² + DEXTime to Progression49.0 days

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