Clinical trialNCT06843434RecruitingPhase 2Interventional

A Study of Botensilimab and Balstilimab for Rectal Adenocarcinoma

SponsorMemorial Sloan Kettering Cancer CenterEnrollment40Locally Advanced Rectal AdenocarcinomaMicrosatellite Stable Rectal Carcinoma

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

The purpose of this study is to find out whether the combination of botensilimab and balstilimab (BOT/BAL) is a safe and effective treatment that causes few or mild side effects for people with mismatch repair proficient (MMRp)/microsatellite stable (MSS) locally advanced rectal adenocarcinoma. The investigators will also find out whether BOT/BAL is an effective treatment when given in combination with standard chemotherapy.

clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

Andrea Cercek, MD
Memorial Sloan Kettering Cancer Center
Principal InvestigatorKOL profile →
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

7 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

Memorial Sloan Kettering Basking Ridge (limited Protocol Activities)
Basking Ridge, New Jersey, United States
Andrea Cercek, MD →
Recruiting
Memorial Sloan Kettering Monmouth (limited Protocol Activities)
Middletown, New Jersey, United States
Recruiting
Memorial Sloan Kettering Bergen (limited Protocol Activities)
Montvale, New Jersey, United States
Recruiting
Memorial Sloan Kettering Cancer Center at Suffolk - Commack (limited Protocol Activities)
Commack, New York, United States
Recruiting
Memorial Sloan Kettering Westchester (limited Protocol Activities)
Harrison, New York, United States
Recruiting
Memorial Sloan Kettering Cancer Center (all Protocol Activities)
New York, New York, United States
Andrea Cercek, MD →
Recruiting
Memorial Sloan Kettering Nassau (limited Protocol Activities)
Uniondale, New York, United States
Recruiting

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

BalstilimabBotensilimab

Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 20 Feb 2025
Primary completion: 20 Feb 2028
Completion: 20 Feb 2028
Last update posted: 16 Jun 2026
Registered enrollment: 40
Registry id: NCT06843434

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.