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OncoMatch/Clinical Trials/NCT03594630

Active Surveillance and Chemotherapy Before Surgery in Treating Participants With Stage II-III Rectal Cancer

Is NCT03594630 recruiting? Yes, currently enrolling (May 2026). This Early Phase 1 trial studies Chemotherapy for rectal adenocarcinoma.

Early Phase 1RecruitingM.D. Anderson Cancer CenterNCT03594630Data as of May 2026

Treatment: ChemotherapyThis pilot trial studies how well active surveillance and chemotherapy before surgery work in treating participants with stage II-III rectal cancer. Active surveillance involves monitoring participants for additional tumor growth after receiving cancer treatment. Drugs used in chemotherapy work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. It is not yet known whether deferring surgery after active surveillance and chemotherapy will work better in treating participants with stage II-III rectal cancer.

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Extracted eligibility criteria

Cancer type

Colorectal Cancer

Disease stage

Required: Stage II, IIA, IIB, IIC, III, IIIA, IIIB, IIIC (AJCC v8)

Clinical Stage: Stage II and III. N2 disease is to be estimated as four or more lymph nodes that are >= 10 mm.

Performance status

ECOG 0–2(Ambulatory, capable of self-care)

Prior therapy

Cannot have received: pelvic radiation

Any prior pelvic radiation

Structured fields extracted by AI. May contain errors — verify against the official protocol.

US trial sites

  • M D Anderson Cancer Center · Houston, Texas

Showing up to 5 US sites. See all sites on ClinicalTrials.gov →

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