Spots Global Cancer Trial Database for Study of ADI-PEG 20 in Patients With Advanced Melanoma

Study Description

Brief Summary: This was a phase 1/2, open-label, dose-escalation study of arginine deiminase linked via succinimidyl succinate to polyethylene glycol of 20,000 molecular weight (ADI-PEG 20) in subjects with advanced melanoma. ADI-PEG 20 was administered intramuscularly (IM) at escalating doses weekly for 9 weeks (cycle 1) or 8 weeks (subsequent cycles). The primary objectives were to the establish the safety, tolerability, and clinical efficacy of ADI-PEG 20. Secondary objectives included evaluation of the metabolic activity by \[18F\]-fluorodeoxyglucose positron emission tomography (FDG PET), pharmacodynamics, correlation of immunogenicity with clinical response, and correlation of argininosuccinate synthetase (ASS) tumor expression with clinical response.

Detailed Description: A 3+3 design was implemented during phase 1, in which 3 to 6 subjects were enrolled sequentially into the following escalating dose cohorts: * Cohort 1 (40 IU/m\^2) * Cohort 2 (80 IU/m\^2) * Cohort 3 (160 IU/m\^2) Subjects were monitored for dose-limiting toxicity (DLT) during the first 2 weeks of cycle 1, with DLT defined as any grade 3 or higher toxicity. The maximum tolerated dose (MTD) was defined as the cohort in which \< 33% of subjects (ie, 0/3 or 1/6 subjects in a cohort) experienced DLT. In phase 2, the MTD cohort was expanded in up to 25 patients. Subjects who completed treatment in cycle 1 without DLT were eligible to initiate cycle 2 at week 10 provided that a computed tomography (CT) scan showed either enlargement of existing disease without accompanying symptoms OR stable disease or improvement with no unacceptable toxicity. The same radiologic criteria applied for initiation of subsequent cycles. Subjects could continue to receive study treatment until disease progression.

Keywords

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

Contact Details

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