NCT01764477

Safety and Efficacy Study of PRI-724 Plus Gemcitabine in Subjects With Advanced or Metastatic Pancreatic Adenocarcinoma

Phase Ib Multicenter, Cohort Dose Escalation Trial to Determine the Safety, Tolerance and Preliminary Antineoplastic Activity of Gemcitabine Administered in Combination With Continuous Intravenous Doses of PRI-724, a CBP/ β- Catenin Inhibitor, to Patients With Advanced or Metastatic Pancreatic Adenocarcinoma Eligible for Second-Line Therapy After Failing First-Line Therapy With FOLFIRINOX (or FOLFOX)

• Status: Completed
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 20 (actual)
• Sponsor: Prism Pharma Co., Ltd. · Industry
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Laboratory studies suggest that the study drug may stop cancer cells from growing by affecting an interaction between proteins in the cells referred to as cAMP-response element-binding protein and ß-catenin. The purpose of this research study is to determine the highest safe dose of study drug that may be used when it is given together with a chemotherapy drug to patients with cancer of the pancreas.

Detailed description

PRI-724 is a small molecule antagonist that binds to the co-activator CBP thereby specifically inhibiting the subset of Wnt/β-catenin-driven genes that are up-regulated in cancer cells. PRI-724 is being developed as a potential antineoplastic agent. Purpose: To determine the safety, tolerability, dose-limiting toxicities (DLTs), and maximum tolerated dose (MTD) of sequential escalating doses per cohort of PRI-724 administered in combination with gemcitabine to patients with adenocarcinoma of the pancreas that is locally advanced, metastatic, or otherwise inoperable, who are candidates for second-line therapy after failing first-line therapy with FOLFIRINOX (i.e., folinic acid \[leucovorin\], fluorouracil, irinotecan, oxaliplatin) * PRI-724: 320, 640, 905 mg/m2/day, continuous intravenous (CIV) infusion over 24 h, daily × 7 days, 1 week on with 1 week recovery × 2 (4 weeks equals 1 cycle) * Gemcitabine: 1000 mg/m2 IV over 30 minutes; 3 weeks on with 1 week recovery (4 weeks equals 1 cycle) Patients with documented, measurable or evaluable adenocarcinoma of the pancreas that is locally advanced, metastatic, or otherwise inoperable, who are candidates for second-line therapy after failing first-line therapy with FOLFIRINOX, will be entered into this phase 1b, multicenter, open-label, non-randomized, dose-escalation per cohort study. The trial is designed to evaluate the safety, tolerability, DLT(s), and MTD of escalating doses of PRI-724, a CBP/ β- catenin inhibitor, when administered in combination with a standard dose of gemcitabine. Correlative studies include characterization of the PK profiles of PRI-724 and gemcitabine, evaluation of the utility of potential PD markers of PRI-724 activity, as well as preliminary assessment of the antineoplastic activity of PRI-724 plus gemcitabine in this patient population.

Conditions

• Advanced Pancreatic Cancer
• Metastatic Pancreatic Cancer
• Pancreatic Adenocarcinoma

Interventions

Type	Name	Description
DRUG	PRI-724	Gemcitabine: 1000 mg/m2 IV over 30 minutes; once weekly dosing; 3 weeks on with 1 week recovery (4 weeks per cycle) PRI-724: Cohort 1: 320 mg/m2/day; Cohort 2: 640 mg/m2/day; Cohort 3: 905 mg/m2/day; Continuous IV over 24 hours; daily x 7 days; 1 week on with 1 week recovery × 2 (4 weeks per cycle)

Timeline

• Start date: 2013-04-01
• Primary completion: 2015-10-01
• Completion: 2015-10-01
• First posted: 2013-01-09
• Last updated: 2017-08-17

Locations

5 sites across 1 country: United States