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A Trial of Pamiparib With Tislelizumab in Patients With Advanced Tumours With Homologous Recombination Repair Defects — IMPARP-HRD  

Cancer Clinical Trial

Official title:
An Open Label, Signal Seeking, Translational, Phase II Trial of Pamiparib in Combination With Tislelizumab in Patients With Advanced Tumours With Homologous Recombination Repair Defects

Clinical Trial Summary

This study will describe the efficacy of pamiparib in combination with tislelizumab in patients with advanced tumours harbouring molecular profiles consistent with homologous recombination deficiency (HRD), agnostic of tumour origin. A tumour-agnostic approach has been adopted in this study due to the broad activity of PARP inhibitors across multiple tumour types. In addition, response to PARP inhibitors has been demonstrated in patients with genomic features associated with HRD, even in the absence of germline BRCA1 or BRCA2 mutations. These results suggest that the presence of HRD itself is the key predictive biomarker for PARP inhibitor efficacy. This paves the way for a precision-oncology, tumour-agnostic approach to patient selection for treatment, rather than the traditional tumour site-of-origin basis for which the current PARP inhibitor approvals exist. To investigate this, cohort A of this study includes patients with genomic features of HRD, but without a germline BRCA1 or BRCA2 mutation. Demonstration of clinical efficacy in this cohort will provide strong support to the tumour-agnostic, precision-oncology approach for patient selection for PARP inhibitor or PARP inhibitor combination treatment. This forms the primary objective of the study. The study will consist of two cohorts, broadly, cohort A - patients without a pathogenic BRCA1 or BRCA2 mutation but with other germline or somatic mutations in other HRD genes; cohort B- patients with a pathogenic BRCA1 or BRCA2

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04985721
Study type Interventional
Source Peter MacCallum Cancer Centre, Australia
Contact Stephen Luen, MBBS
Phone +61 3 8559 5000
Email stephen.luen@petermac.org
Status Recruiting
Phase Phase 2
Start date February 24, 2022
Completion date August 1, 2025
View Details
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