Neo-adjuvant Pembrolizumab and Radiotherapy in Localised MSS Rectal Cancer

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorUniversity Hospital, Geneva

About this trial

This project investigates the clinical and biological impact of combining immunotherapy (pembrolizumab) with short course radiotherapy (5Gy, five times) in the neo-adjuvant treatment of localised microsatellite stable (MSS) rectal cancer.

Eligibility criteria

Qualifiers

Male/female participants who are at least 18 years of age on the day of signing informed consent with histologically confirmed diagnosis of rectal adenocarcinoma will be enrolled in this study.

Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1. Evaluation of ECOG is to be performed within 7 days prior to the date of allocation.

Patients with previously untreated localized T3-T4 N0 or T any or N1-2, M0 rectal adenocarcinoma.

Tumour must be microsatellite stable (MSS).

Disqualifiers

Has a microsatellite instable tumour (MSI-High).

Has received prior therapy with an anti-PD-1, anti-PD-L1, or anti PD L2 agent or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (eg, CTLA-4, OX 40, CD137).

Has received for the same disease prior systemic anti-cancer therapy including investigational agents prior to starting pembrolizumab. Note: If participant received major surgery, they must have recovered adequately from the toxicity and/or complications from the intervention prior to starting study treatment.

Has received prior radiotherapy for the same disease. If treated with radiotherapy for another disease, participants must have recovered from all radiation-related toxicities, not require corticosteroids, and not have had radiation pneumonitis.

Trial design

Treatments tested in this trial

  • Pembrolizumab

Treatment groups

25 Participants
are divided into 1 treatment group

Sponsors and collaborators