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Active, not recruiting Phase 2 Interventional Results available

Combination Immunotherapy in Colorectal Cancer

ClinicalTrials.gov ID: NCT05571293

Public ClinicalTrials.gov record NCT05571293. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 8, 2026, 3:50 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Novel Exploratory Study to Test Combination of Botensilimab and Balstilimab Immunotherapy in Resectable Colorectal Cancer Patients

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is a pilot study to see whether a combination of two investigational drugs that target the immune system can be given to people with colorectal cancer before surgically removing the tumor. This study is also being done to see what side effects this combination of drugs has and what effect they have on colorectal cancer. The two monoclonal antibodies are balstilimab, a programmed cell death protein 1 (PD-1) inhibitor, and botensilimab, a cytotoxic T lymphocyte-associated protein 4 (CTLA-4) inhibitor. This study has 3 cohorts. Participants in Cohort A will receive a total of 2 doses of balstilimab and a single dose of botensilimab, both given intravenously (IV), before surgery. Participants in Cohort B and C will receive a total of 4 doses of balstilimab and a single dose of botensilimab, both given intravenously (IV), before surgery. Participants in Cohort C must have dMMR/MSI-High colorectal cancer.

Study identification

NCT ID
NCT05571293
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 2
Enrollment
26 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Mar 16, 2023
Primary completion
Nov 13, 2024
Completion
Jun 30, 2026
Last update posted
May 21, 2026

2023 – 2026

United States locations

U.S. sites
3
U.S. states
1
U.S. cities
3
Facility City State ZIP Site status
Weill Cornell Medicine/New York-Presbyterian Brooklyn Methodist Hospital Brooklyn New York 11215
Weill Cornell Medicine/NewYork Presbyterian - Queens Flushing New York 11355
Weill Cornell Medicine/NewYork-Presbyterian Hospital New York New York 10021

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05571293, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 21, 2026 · Synced Sep 8, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT05571293 live on ClinicalTrials.gov.

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