Not Yet RecruitingPhase 2

Short-course Radiotherapy Followed by CAPOX and Ivonescimab for Locally Advanced Rectal Cancer

40 participantsStarted 2025-01-20

Plain-language summary

This study is a single-arm, prospective, phase II clinical study to evaluate the efficacy and safety of preoperative short-course radiotherapy combined with ivonescimab and chemotherapy + total mesorectal excision(TME) surgery in patients with advanced rectal cancer.

Who can participate

Age range

18 Years – 75 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * ECOG score of 0-1; * histologically or cytologically confirmed colorectal adenocarcinoma with non-distant metastasis * Tumor distance from anal verge ≦10cm * at least one high-risk criterion defined by pelvic MRI: cT stage \>T2 (tumor invades intrinsic muscularis propria by more than 5 mm); Extramural vascular invasion; cN2; Involvement of the rectal mesorectal fascia (tumor or lymph node ≤1mm from the rectal mesorectal fascia); Lateral lymph node short diameter ≥5mm * enough organ function Exclusion Criteria: * with known MSI-H or dMMR * Multiple primary adenocarcinomas * History of pelvic radiotherapy * Previous immunotherapy, including immune checkpoint inhibitors (e.g., anti-PD-1 antibody, anti-PD-L1 antibody, anti-CTLA-4 antibody, etc.), immune checkpoint agonists (e.g., ICOS, CD40, CD137, GITR, OX40 antibody, etc.), immunocellular therapy, and other treatments targeting the immune mechanism of the tumor.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Complete response rate (CR, pCR plus cCR )

Timeframe: pCR rate : within 1 week after surgery；cCR：12-13 weeks after radiotherapy ends

Trial details

NCT IDNCT06760520

SponsorThe First Affiliated Hospital of Zhengzhou University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2027-12-20

Contact for this trial

Yugui Lian, M.D

+86 0371-66279076 fcclianyg@zzu.edu.cn

View on ClinicalTrials.gov More Locally Advanced Rectal Cancer trials

Who can participate

Age range

18 Years – 75 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.