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Phase 2 Completed N=184 Treatment

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

OutcomeResultp-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
View full record on ClinicalTrials.gov →

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.

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