Phase 2
Completed N=184
Phase 1b/2 Study of Carfilzomib in Relapsed Solid Tumors, Multiple Myeloma, or Lymphoma
Source: ClinicalTrials.gov NCT00531284 ↗Enrolled (actual)
184
Serious AEs
45.7%
Results posted
Dec 2015
Primary outcomePrimary: Phase 1b: Number of Participants With Dose-limiting Toxicities (DLT) — 0; 0; 1; 0 participants
Summary
The primary objectives of this Phase 1b/2 study were as follows:
* Phase 1b (Bolus and Infusion): To evaluate the safety and tolerability of carfilzomib in patients with relapsed solid tumors and in patients with relapsed and/or refractory multiple myeloma and in patients with refractory lymphoma.
* Phase 2 (Bolus): To evaluate the overall response rate (ORR) after 4 cycles of carfilzomib in patients with relapsed solid tumors.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Phase 1b: Number of Participants With Dose-limiting Toxicities (DLT) |
0; 0; 1; 0; 2; 0 | — |
| PRIMARY Phase 2: Percentage of Participants With an Overall Response After 4 Treatment Cycles |
15.4 | — |
| SECONDARY Percentage of Participants With an Overall Response Throughout the Study |
100.0; 0.0; 42.9; 38.5; 33.3; 28.6 | — |
| SECONDARY Duration of Response |
6.2; 9.3; 5.5; 8.0; 14.8; NA | — |
| SECONDARY Progression-Free Survival |
5.1; 1.8; 1.8; 1.8; 1.7; 2.9 | — |
| SECONDARY Time to Progression |
5.1; 1.8; 1.8; 1.8; 1.7; 1.6 | — |
| SECONDARY Maximum Observed Plasma Concentration of Carfilzomib |
2390; 914; 1061; 1193; 722 | — |
| SECONDARY Time to Maximum Observed Plasma Concentration (Tmax) of Carfilzomib |
0.0500; 0.500; 0.258; 0.275; 0.250 | — |
| SECONDARY Area Under the Plasma Concentration-time Curve From Time Zero to the Last Concentration Measured (AUC0-last) for Carfilzomib |
251; 346; 426; 536; 269 | — |
| SECONDARY Area Under the Plasma Concentration-time Curve From Time Zero to Infinity (AUC0-inf) for Carfilzomib |
223; 324; 426; 538; 273 | — |
| SECONDARY Elimination Half-life (t½) of Carfilzomib |
0.444; 0.888; 0.917; 0.952; 0.888 | — |
| SECONDARY Clearance (CL) of Carfilzomib |
263; 139; 182; 302; 164 | — |
| SECONDARY Volume of Distribution at Steady State (Vss) of Carfilzomib |
27.7; 31.0; 22.7; 113; 21.8 | — |
| SECONDARY Mean Residence Time (MRT) Extrapolated to Infinity for Carfilzomib |
0.0902; 0.227; 0.116; 0.205; 0.117 | — |
Eligibility Criteria
Inclusion Criteria
Disease related
Phase 1 Subjects (Bolus and Infusion):
Solid Tumor:
- Histologically confirmed advanced solid tumor
- 1 to 3 prior treatment regimens
- At least one site of radiographically measurable disease of ≥ 2 cm in the largest dimension by traditional computed tomography (CT) scanning technique or ≥ 1 cm in the largest dimension by spiral CT scanning (per Response Evaluation Criteria in Solid Tumors [RECIST] criteria); or if, in the Principal Investigator's opinion, evaluable disease can be reliably and consistently followed, the subject may be eligible upon approval by the Medical Monitor
Multiple Myeloma (MM):
- Relapsed and/or refractory multiple myeloma following 2 or more prior treatment regimens.
- Measurable disease as indicated by one or more of the following:
- Serum M-protein ≥ 1 g/dL
- Urine M-protein ≥ 200 mg/24 hr
- Serum Free Light Chain: Involved free light chain (FLC) level ≥ 10 mg/dL provided serum FLC ratio is abnormal
Lymphoma:
- Histologically or cytologically confirmed lymphoma.
- Patients must have had an initial diagnosis of indolent non-Hodgkin lymphoma (NHL) (including follicular, small lymphocytic, lymphoplasmacytoid, and marginal zone lymphoma), indolent disease that transformed to a more aggressive subtype, as previously described or patients may have mantle cell lymphoma.
- Patients are required to have received prior rituximab (alone or combined with other treatment) and are considered refractory to (defined as no response, or progression within 6 months of completing therapy) or intolerant of continued rituximab.
- Patients may have received up to a maximum of four prior unique chemotherapy regimens, including if not contra-indicated autologous stem-cell transplantation (ASCT).
- For patients to enroll in the expanded dose group for lymphoma, patients must have measurable disease
Phase 2 Bolus Subjects:
-Histologically confirmed advanced solid tumor diagnosis and:
- Non-small cell lung cancer (NSCLC): Failed at least 1 prior platinum-based chemotherapy regimen but not more than 3 prior therapies for metastatic disease
- Small cell lung cancer (SCLC): Failed 1 to 3 prior chemotherapy regimens
- Ovarian: Failed at least 1 prior platinum-based chemotherapy regimen but not more than 4 therapies for metastatic disease
- Renal: Failed at least 2 prior chemotherapy regimens for metastatic disease
- Other solid tumor types: Failed at least 1 prior chemotherapy regimen for metastatic or relapsed disease and for which standard of care therapy is no longer effective or does not exist
- At least one site of radiographically measurable disease of ≥ 2 cm in the largest dimension by traditional CT scanning technique or ≥ 1 cm in the largest dimension by spiral CT scanning (per RECIST criteria); or if, in the Principal Investigator's opinion, evaluable disease can be reliably and consistently followed, the subject may be eligible upon approval by the Medical Monitor
Demographic
- Males and females ≥ 18 years of age
- Life expectancy of more than 3 months
- Eastern Cooperative Oncology Group (ECOG) Performance Status 0-2
Laboratory
- Adequate hepatic function, with bilirubin 1.5 times the upper limit of normal (ULN), and alanine aminotransferase (ALT) 3 times ULN
- Absolute neutrophil count (ANC) > 1000/mm³, hemoglobin ≥ 8 gm/dL for solid tumors or 7.0 gm/dL for MM, and platelet count ≥ 100,000/mm³ for solid tumors or ≥ 30,000/mm³ for MM.
- Subjects should not have received platelet transfusions for at least 1 week prior to screening
- Screening ANC should be independent of granulocyte- and granulocyte/macrophage colony stimulating factor (G-CSF and GM-CSF) support for at least 1 week and of pegylated G-CSF for ≥ 2 weeks
- Subjects may receive red blood cell (RBC) transfusions or receive supportive care with erythropoietin or darbepoetin in accordance with institutional guidelines
- Calculated or measured creatinine clearance (CrCl) of ≥ 20 mL/minute calculated using the
Data sourced from ClinicalTrials.gov (NCT00531284). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.