NCT04014530

Pembrolizumab With Ataluren in Patients With Metastatic pMMR and dMMR Colorectal Carcinoma or Metastatic dMMR Endometrial Carcinoma: the ATAPEMBRO Study

Study of Pembrolizumab Combined With Ataluren In Patients With Metastatic pMMR and dMMR Colorectal Adenocarcinomas or Metastatic dMMR Endometrial Carcinoma: the ATAPEMBRO Study

• Status: Recruiting
• Phase: Phase 1 / Phase 2
• Study type: Interventional
• Enrollment: 47 (estimated)
• Sponsor: Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Single Center, open label, Phase I-II trial designed to test the safety and efficacy of the combination of Ataluren and Pembrolizumab for the treatment of metastatic mismatch repair deficient and proficient colorectal adenocarcinoma and metastatic mismatch repair deficient endometrial carcinoma.

Detailed description

In controlling tumor outgrowth an intact immune surveillance is very important. PD-1 receptor-ligand interaction is a major pathway hijacked by tumors to suppress this immune control. Pembrolizumab is a potent and highly selective humanized monoclonal antibody designed to directly block the interaction between PD-1 and its ligands and is registered for the treatment of advanced (unresectable or metastatic) melanoma of locally advanced or metastatic NSCLC in adults. In an earlier study it's effect has been shown in mismatch repair deficient tumors. Ataluren is designed to allow the protein making apparatus (the ribosome) in cells to skip over a premature stop codon (PTC), allowing the cells to translate the sequence downstream of a premature termination codon (PTC) in mRNA transcripts. This may result in the translation of additional out-of-frame code, which is available in abundance in dMMR tumors. We argue that this may result in new target peptides for the immune-system to recognize cancer cells. The investigators hypothesize that the formation of these peptides by Ataluren can enhance the effect of Pembrolizumab anti-PD1 therapy. Therefore the investigators designed a Single Center, open label, Phase I-II trial designed to test the safety and efficacy of the combination of Ataluren and Pembrolizumab for the treatment of metastatic mismatch repair deficient and proficient colorectal adenocarcinoma and metastatic mismatch repair deficient endometrial carcinoma.

Conditions

• Colorectal Cancer
• Endometrium Cancer

Interventions

Type	Name	Description
DRUG	Ataluren + Pembrolizumab	Ataluren and Pembrolizumab combination therapy

Timeline

• Start date: 2019-08-01
• Primary completion: 2023-06-01
• Completion: 2023-08-01
• First posted: 2019-07-10
• Last updated: 2023-02-01

Locations

1 site across 1 country: Netherlands

Regulatory

• FDA-regulated drug study