NCT04796454

Pamiparib and Low Dose Temozolomide In Patients With Platinum Sensitive Biliary Tract Cancer

• Status: Withdrawn
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 0 (actual)
• Sponsor: European Organisation for Research and Treatment of Cancer - EORTC · Network
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

The main objective of this trial is to evaluate the activity of pamiparib plus low dose TMZ as maintenance treatment in improving progression free survival (PFS) in patients with advanced BTC who have received first line platinum-based chemotherapy. The primary objective is to test with a one-sided type I error of 10% whether pamiparib plus low dose TMZ as maintenance treatment increases PFS according to RECIST (version 1.1) in the entire study population as compared to standard treatment with Cisplatin-Gemcitabine chemotherapy regimen (or Gemcitabine-Oxaliplatin if cisplatin is contra-indicated). This is an open label randomized controlled multi-center phase II trial. Patients must meet all the criteria to be eligible. Eligible patients will be centrally randomized between the two arms in a 1:1 ratio. Randomization will be stratified by the following factors: * Tumour response CR/PR vs SD vs non-measurable/non-PD after previous platinum-based chemotherapy as confirmed by central review * Tumour location (intrahepatic bile ducts vs. gallbladder vs. perihilar bile ducts and distal bile duct and /ampulla of Vater tumours). Patients will receive treatment until progression or for a maximum period of 2 years.

Conditions

• Platinum-Sensitive Biliary Tract Cancer

Interventions

Type	Name	Description
DRUG	Cisplatin	Cisplatin IV 25 mg/m² on d1 and d8 - always combined with Gemcitabine; maximum treatment 2 years
DRUG	Gemcitabine	Gemcitabine IV 1000 mg/m² on d1 and d8 if in combination with Cisplatin; Gemcitabine IV 1000 mg/m² on d1 and d15 if in combination with Oxaliplatin; maximum treatment 2 years
DRUG	Oxaliplatin	Oxaliplatin IV 100 mg/m² on d1 and d15 - always combined with Gemcitabine; maximum treatment 2 years
DRUG	Pamiparib	Pamiparib 60 mg PO twice a day from d1 to day28 in a 4-week cycle - always combined with Temozolomide; until progression or maximum treatment 2 years
DRUG	Temozolomide	Temozolomide 60 mg PO once a day from d1 to d7 in a 4-week cycle - always combined with Pamiparib; until progression or maximum treatment 2 years

Timeline

• Start date: 2022-05-01
• Primary completion: 2026-07-01
• Completion: 2026-08-01
• First posted: 2021-03-12
• Last updated: 2022-06-01