CPI-613 in Treating Patients With Relapsed or Refractory Small Cell Lung Cancer

Study Overview
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Brief Summary
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This pilot clinical trial studies CPI-613 (6,8-bis[benzylthio]octanoic acid) in treating patients with relapsed or refractory small cell lung cancer. CPI-613 may interfere with the growth of tumor cells and may be an effective treatment for small cell lung cancer.

Detailed Description
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PRIMARY OBJECTIVES: I. To evaluate the safety and anti-cancer activities in patients with relapsed or refractory small cell lung cancer (SCLC) who have failed 1 or 2 lines of chemotherapy. OUTLINE: Patients receive CPI-613 intravenously (IV) over 2 hours on days 1 and 4 of weeks 1-3. Courses repeat every 4 weeks in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up every 2 months.

Official Title
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A Pilot Clinical Trial of CPI-613 in Patients With Relapsed or Refractory Small Cell Lung Carcinoma (SCLC)

Conditions
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Recurrent Small Cell Lung Cancer

Intervention / Treatment
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* Drug: 6,8-bis(benzylthio)octanoic acid


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Histologically or cytologically proven SCLC that has relapsed or been refractory from at least one line of chemotherapy Eastern Cooperative Oncology Group (ECOG) performance status of =< 3 Expected survival > 1 month No acute toxicities from previous treatment higher than grade 1 at the start of treatment with CPI-613 Women of child-bearing potential (i.e., women who are pre-menopausal or not surgically sterile) must use accepted contraceptive methods (abstinence, intrauterine device [IUD], oral contraceptive or double barrier device) during the study, and must have a negative serum or urine pregnancy test within 1 week prior to treatment initiation Men must practice effective contraceptive methods during the study, unless documentation of infertility exists Platelet count >= 100,000 cells/mm^3 or >= 100 bil/L Absolute neutrophil count (ANC) >= 1500 cells/mm^3 or >= 1.5 bil/L Aspartate aminotransferase (AST/serum glutamic oxaloacetic transaminase [SGOT]) =< 3 x upper normal limit (UNL) Bilirubin =< 1.5 x UNL Serum creatinine =< 1.5 mg/dL or 133 µmol/L Albumin > 2.0 g/dL or > 20 g/L Mentally competent, ability to understand and willingness to sign an Institutional Review Board (IRB)-approved written informed consent form Have access via central line (e.g., portacath)-double lumen due to CPI-613 administration requirements Exclusion Criteria: Patients receiving any other standard or investigational treatment for their cancer, or any investigational agent for any non-cancer indication within the past 2 weeks prior to initiation of CPI-613 treatment Serious medical illness that would potentially increase patients' risk for toxicity Any active uncontrolled bleeding or bleeding diathesis Pregnant women, women of child-bearing potential not using reliable means of contraception, or lactating women Men unwilling to practice contraceptive methods during the study period Life expectancy less than 1 month Treatment with any anti-cancer therapy within the 2 weeks prior to treatment with CPI-613 Patients with untreated central nervous system (CNS) or epidural tumor Any condition or abnormality which may, in the opinion of the investigator, compromise his or her safety Unwilling or unable to follow protocol requirements Active heart disease including myocardial infarction within previous 6 months, symptomatic coronary artery disease, arrhythmias not controlled with medication, or symptomatic congestive heart failure Evidence of active infection or serious infection (e.g., septic shock with multi-organ dysfunction) within the past month Patients with known human immunodeficiency virus (HIV) infection Requirement for immediate palliative treatment of any kind including surgery

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Treatment (CPI-613)<br>Patients receive CPI-613 IV over 2 hours on days 1 and 4 of weeks 1-3. Courses repeat every 4 weeks in the absence of disease progression or unacceptable toxicity. | Drug: 6,8-bis(benzylthio)octanoic acid<br>* Given IV<br>* Other names: CPI-613;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Tumor response rates, defined as the proportion of patients who achieve complete response (CR), partial response (PR), stable disease (SD) or progressive disease (PD) | The proportion of responders as the percent of patients who are SD, PR and CR will be estimated, as well as RR (sum of PR + CR) and disease control rate (DCR, which is the sum of SD, PR and CR). 95% confidence intervals will be included. | Up to 3 years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Progression-free survival (PFS) | Survival curves for PFS will be estimated using Kaplan-Meier techniques. In addition, the 6 month and 1-year PFS rates will be estimated. Median PFS will be estimated as well. | Up to 3 years | 
| Overall survival (OS) | Survival curves for OS will be estimated using Kaplan-Meier techniques. In addition, the 6 month and 1-year OS rates will be estimated. Median OS will be estimated as well. | Up to 3 years |