Status:

RECRUITING

Long-course Chemoradiotherapy or Short-course Radiotherapy Combined With CAPOX, PD-1antibody, and COX-2 Inhibitor for MSS Locally Advanced Rectal Cancer (SERRAC)

Lead Sponsor:

Fudan University

Conditions:

Locally Advanced Rectal Cancer

Neoadjuvant Therapy

Eligibility:

All Genders

18-75 years

Phase:

PHASE2

Brief Summary

SERRAC is a prospective, multicentre, randomized phase II trial. 138 LARC (T3-4/N+M0, distance from anal verge ≤10cm) patients will be treated with neoadjuvant therapy and assigned to Group A and Grou...

Eligibility Criteria

Inclusion

  • Age 18-75 years, gender not limited
  • Pathologically confirmed rectal adenocarcinoma
  • ≤10 cm from the anus
  • Baseline stage T3-4/N+
  • No distant metastasis
  • MSI/MMR status MSS/pMMR
  • Karnofsky performance status score ≥70
  • No prior chemotherapy or other anti-cancer treatment prior to enrollment
  • No prior immunotherapy prior to enrollment
  • Ability to comply with the study protocol
  • Written informed consent

Exclusion

  • Pregnancy or breast-feeding women;
  • Known history of other malignancies within 5 years;
  • Known history of previous anti-tumor treatment, including radiotherapy, chemotherapy, immune checkpoint inhibitors, T cell-related therapy, etc;
  • Known history of severe neurological or mental illness (such as schizophrenia, dementia or epilepsy);
  • Current severe cardiac disease (cardiac dysfunction and arrhythmia), renal dysfunction and liver dysfunction;
  • Acute cardiac infarction or cerebral ischemic stroke occurred within 6 months before recruitment;
  • Uncontrolled infection which needs systemic therapy;
  • Active autoimmune disease or immunodeficiencies, known history of organ transplantation or systematic use of immunosuppressive agents;
  • Known history of human immunodeficiency virus (HIV) infection (i.e., HIV 1 to 2 antibody positive), active syphilis infection, active pulmonary tuberculosis infection
  • Allergic to any component of the therapy.

Key Trial Info

Start Date :

August 28 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

August 31 2028

Estimated Enrollment :

138 Patients enrolled

Trial Details

Trial ID

NCT07150949

Start Date

August 28 2025

End Date

August 31 2028

Last Update

September 2 2025

Active Locations (1)

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1

Fudan University Shanghai Cancer Center

Shanghai, Shanghai Municipality, China, 200030