Study of the Pharmacokinetics and Safety of Carfilzomib in Patients With Advanced Malignancies and Hepatic Impairment

Amgen

Status and phase: Completed; Phase 1

Conditions: Hepatic Impairment; Solid Tumors; Hematologic Malignancies

Treatments: Drug: Carfilzomib

Study type: Interventional

Funder types: Industry

Identifiers

NCT01949545

CFZ002

20130402 (Other Identifier)

Details and patient eligibility

About

The purpose of this study is to compare the safety and efficacy of carfilzomib, including measuring the amount of the study drug in the blood at certain times following dosing. This study is being done in people with varying degrees of liver function to see if they respond differently to the study drug.

Enrollment: 46 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion and exclusion criteria

Key Inclusion Criteria:

1. Relapsed or progressive advanced malignancies (solid tumors or hematologic malignancies)

2. At least ≥ 2 prior treatment regimens for the underlying malignancy

3. Confirmed advanced solid tumor or hematologic malignancy

4. Measurable or evaluable disease

5. Clinical diagnosis of chronic hepatic impairment that is stable with no acute worsening of liver failure within one month prior to enrollment. Hepatic impairment will be assessed as per National Cancer Institute Organ Dysfunction Working Group Criteria (NCI-ODWG) schema and will fall into one of the following three categories:

   • Cohort 2 (mild): Bilirubin > 1-1.5 × upper limit of the normal range (ULN) or aspartate aminotransferase (AST) > ULN, but bilirubin ≤ ULN
   • Cohort 3 (moderate): ≥ 1.6-3 × ULN; any AST
   • Cohort 4 (severe): Bilirubin > 3 × ULN; any AST

   Exception to Inclusion Criterion #5 for Subjects with Normal Hepatic Function:

   All subjects enrolled with normal hepatic function (N=10) must meet all inclusion criteria as outlined with the exception of Inclusion Criterion

   #5, which should be substituted with the following criterion to be enrolled into the study:

   • Cohort 1 (normal hepatic function): Bilirubin ≤ ULN; AST ≤ ULN

6. Eastern Cooperative Oncology Group (ECOG) Performance Status 0-2

7. Left ventricular ejection fraction (LVEF) ≥ 40%

8. Adequate renal function (calculated creatinine clearance ≥ 30 mL/min)

9. Active congestive heart failure (New York Heart Association [NYHA] Class III to IV), symptomatic ischemia, conduction abnormalities uncontrolled by conventional intervention or myocardial infarction within the protocol-specified period prior to enrollment

Key Exclusion Criteria:

1. Subjects with symptomatic brain metastasis or central nervous system (CNS) disease
2. Significant neurotoxicity (Grade 2 with pain or higher) at the time of enrolment
3. Known human immunodeficiency virus (HIV), hepatitis B virus (HBV) and hepatitis C virus (HCV) infection (Exception: Subjects with chronic or cleared HBV and HCV infection and stable liver function tests [bilirubin, AST] will be allowed)

Trial design

Primary purpose: Other

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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46 participants in 4 patient groups

Normal Hepatic Function

Experimental group

Description:

Participants with normal hepatic function (bilirubin and aspartate aminotransferase (AST) ≤ the upper limit of normal (ULN)) received carfilzomib 20 mg/m² administered by intravenous (IV) infusion on days 1 and 2 of cycle 1, followed by a planned step-up to 27 mg/m² IV on days 8, 9, 15, and 16 of cycle 1. Participants who adequately tolerated dosing at 27 mg/m² in cycle 1 received carfilzomib 56 mg/m² IV on days 1, 2, 8, 9, 15, and 16 of cycle 2 and subsequent 28-day cycles until confirmed progressive disease (PD), unacceptable toxicity, withdrawal of consent, study closure, or death.

Treatment:

Drug: Carfilzomib

Mild Hepatic Impairment

Experimental group

Description:

Participants with mild hepatic impairment (bilirubin \> 1-1.5 x ULN or AST \> ULN, but bilirubin ≤ ULN) received carfilzomib 20 mg/m² administered by intravenous (IV) infusion on days 1 and 2 of cycle 1, followed by a planned step-up to 27 mg/m² IV on days 8, 9, 15, and 16 of cycle 1. Participants who adequately tolerated dosing at 27 mg/m² in cycle 1 received carfilzomib 56 mg/m² IV on days 1, 2, 8, 9, 15, and 16 of cycle 2 and subsequent 28-day cycles until confirmed progressive disease (PD), unacceptable toxicity, withdrawal of consent, study closure, or death.

Treatment:

Drug: Carfilzomib

Moderate Hepatic Impairment

Experimental group

Description:

Participants with moderate hepatic impairment (bilirubin \> 1.5-3 x ULN, any AST) received carfilzomib 20 mg/m² administered by intravenous (IV) infusion on days 1 and 2 of cycle 1, followed by a planned step-up to 27 mg/m² IV on days 8, 9, 15, and 16 of cycle 1. Participants who adequately tolerated dosing at 27 mg/m² in cycle 1 received carfilzomib 56 mg/m² IV on days 1, 2, 8, 9, 15, and 16 of cycle 2 and subsequent 28-day cycles until confirmed progressive disease (PD), unacceptable toxicity, withdrawal of consent, study closure, or death.

Treatment:

Drug: Carfilzomib

Severe Hepatic Impairment

Experimental group

Description:

(Bilirubin \> 3 × ULN; any AST) Participants with severe hepatic impairment (bilirubin \> 3 x ULN; any AST) received carfilzomib 20 mg/m² administered by intravenous (IV) infusion on days 1 and 2 of cycle 1, followed by a planned step-up to 27 mg/m² IV on days 8, 9, 15, and 16 of cycle 1. Participants who adequately tolerated dosing at 27 mg/m² in cycle 1 received carfilzomib 56 mg/m² IV on days 1, 2, 8, 9, 15, and 16 of cycle 2 and subsequent 28-day cycles until confirmed progressive disease (PD), unacceptable toxicity, withdrawal of consent, study closure, or death.

Treatment:

Drug: Carfilzomib