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OncoMatch/Clinical Trials/NCT04095299

Standard Dose Versus High Dose of Radiotherapy in Rectal Preservation With Chemo-radiotherapy in Rectal Cancer Patients

Is NCT04095299 recruiting? Yes, currently enrolling (May 2026). This Phase 3 trial studies Capecitabine 825 mg/m2 twice daily on weekdays for cancer of rectum.

Phase 3RecruitingVejle HospitalNCT04095299Data as of May 2026

Treatment: Capecitabine 825 mg/m2 twice daily on weekdaysIn recent years, an increasing number of retrospective and prospective observational studies have indicated that a subset of rectal cancer patients may avoid surgery if they can achieve a complete response to chemoradiotherapy. Prospective trials, including the previous Danish Watchful Waiting trials (NCT00952926, NCT02438839) in early rectal cancer have demonstrated high levels of organ preservation with dose-escalation, but it is unclear whether this was primarily due to tumor stage or dose level. The aim of the present study is to investigate if a higher dose of radiotherapy is superior compared to a standard dose in patients with early rectal cancer undergoing chemoradiotherapy with curative intent.

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Extracted eligibility criteria

Disease stage

Excluded: Stage CM1

Clinical tumor category cT1-3; Distant metastases verified by imaging or biopsy, i.e. cM1 [excluded]

Performance status

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

Prior therapy

Cannot have received: surgical treatment of the present cancer

Previous surgical treatment of the present cancer, including transanal excision of tumor

Cannot have received: radiation therapy

Exception: previous radiation treatment of the pelvis

Previous radiation treatment of the pelvis

Lab requirements

Blood counts

neutrophils ≥ 1.5 x 10^9/l and thrombocytes ≥ 100 x 10^9/l

Kidney function

serum creatinine < 1.5 x upper limit of normal or measured gfr > 30 ml/min

Liver function

alat < 2.5 x upper limit of normal, bilirubin < 2.5 x upper limit of normal

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

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