The primary objective of Part I of the study is to determine tumor response rate of sequential topoisomerase targeting with irinotecan/oxaliplatin followed by etoposide /carboplatin in chemotherapy-naïve patients with extensive small cell lung cancer. The primary objective of Part II of the study is to determine the objective tumor response rate of irinotecan/oxaliplatin in patients with either refractory disease or who have relapsed to first line chemotherapy or chemoradiotherapy.
This is a Phase II, open label study for either chemotherapy-naïve patients with extensive SCLC or patients who are refractory or have relapsed to 1st line therapy for SCLC. The primary objective is to determine the objective response rate. This study consists of 2 parts: Part I - Chemotherapy-naïve patients with extensive SCLC • These patients will be treated with sequential topoisomerase targeting regimens (Regimen A and B). Regimen A consists of irinotecan and oxaliplatin (IROX), given on Day 1, and Neulasta administered on Day 2. Regimen B consists of etoposide and carboplatin, given on Day 15(etoposide will be given daily x 3)and Neulasta on Day 18. Then, Regimen A will be given again 3 weeks later. The first re-evaluation for response will be performed 3 weeks after the second round of the sequential regimens. Schema of Part I: Regimen A (→ 2 weeks) Regimen B (→ 3 weeks) Regimen A (→ 2 weeks) Regimen B → (3 weeks) → Re-Stage * The second re-evaluation for response will be performed 3 weeks after the fourth round of the sequential regimen. At this point patients with stable disease will be observed; those with either a partial or complete response will be treated with another round of sequential therapy (Regimen A → Regimen B) if there is no evidence of unacceptable toxicity. At the end (3 weeks after) of the fifth round of chemotherapy, patients will be re-evaluated for response, and will be followed-up for recurrent disease every 8 weeks. * Analysis of Top I and Top II levels in peripheral blood mononuclear cells will be performed in 10 patients of Part I. * Evaluation of the expression of the ERCC genes (ERCC1, ERCC2, and XPF) will be performed in those patients in Part I with an adequate tumor specimen. Part II - Patients who have either refractory disease or have relapsed from 1st line therapy • These patients will be treated with Regimen A1 (IROX) at 3-week intervals. Neulasta will be administered on Day 2 of each cycle. The first re-evaluation for response will be performed 3 weeks after the 3rd cycle of Regimen A1. The second re-evaluation for response will be performed 3 weeks after the 6th cycle of Regimen A1. At this point, patients with stable disease will be observed; those with either a partial or complete response will be treated with two additional cycles of Regimen A1 if there is no evidence of unacceptable toxicity. At the end (3 weeks after) of the 8th cycle of Regimen A1, patients will be re-evaluated for response, and will be followed-up for recurrent disease every 8 weeks. Schema of Part II: Regimen A1 (→ 3 weeks) Regimen A1 (→ 3 weeks) Regimen A1 (→ 3 weeks) Re-Stage
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
30
Irinotecan (I.V.) 150-200 mg/m2; Day 1 (every 5 weeks) Oxaliplatin (I.V.) 85 mg/m2; Day 1 (every 5 weeks) Neulasta (subcutaneous) 6 mg; Day 1 (every 5 weeks)
Etoposide (I.V.) 100 mg/m2; Day 1, 2, 3 (every 5 weeks) Carboplatin (I.V.) AUC 6; Day 1 (every 5 weeks) Neulasta (subcutaneous) 6 mg; Day 4 (every 5 weeks)
University of Alabama at Birmingham
Birmingham, Alabama, United States
Objective Response Rate (Part I)
The primary objective is to determine the objective tumor response rate of sequential topoisomerase targeting with irinotecan/oxaliplatin followed by etoposide/carboplatin in chemotherapy-naïve patients with extensive SCLC and Stage IIIb (wet) - IV Large Cell Carcinoma of the Lung with neuroendocrine markers. Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by CT: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR. Stable response means did not meet criteria for progressive or partical response. 20% progressive disease.
Time frame: baseline to 18 months
Response Rate After Relapse
The objective is to determine the objective tumor response rate of sequential topoisomerase targeting with irinotecan/oxaliplatin followed by etoposide/carboplatin in chemotherapy-naïve patients with extensive SCLC and Stage IIIb (wet) - IV Large Cell Carcinoma of the Lung with neuroendocrine markers. Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by CT: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR. Stable response means did not meet criteria for progressive or partical response. 20% progressive disease.
Time frame: 3 weeks after 3rd cycle of starting therapy after relapse or refractory disease
Progression Free Survival (Part I)
Time to progressive disease
Time frame: baseline to five years
Overall Survival (Part I)
Length of subject survival after starting study treatment
Time frame: baseline to 2 years
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