SCRT Sequential Penpulimab in Combination With CAPEOX in the Neoadjuvant Treatment of MSS Locally Advanced Rectal Cancer

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18-75
SponsorRuijin Hospital

About this trial

The goal of this phase 2 study is to learn about the efficacy and safety of short-course radiotherapy (SCRT) sequential Penpulimab in combination with CAPEOX in the neoadjuvant treatment of microsatellite stable (MSS) locally advanced rectal cancer. The main question it aims to answer is the role of immune checkpoint inhibitors in the neoadjuvant treatment of MSS rectal cancer. Participants will receive neoadjuvant treatment of SCRT sequential Penpulimab in combination with CAPEOX. Participants will undergo a clinical re-staging assessment at the end of neoadjuvant therapy to determine whether to adopt a watch-and-wait strategy or undergo radical surgery.

Eligibility criteria

Qualifiers

Informed consent

18 years < age ≤ 75 years

ECOG score is 0-1

Patients with pathologically confirmed rectal adenocarcinoma, assessed by MRI as mid-low rectal cancer (the lower border of the tumor is less than 10cm from the anal verge), clinical stage II-III (cT1-2N1-2M0 or T3-4N0-2M0) according to the 8th Edition of AJCC Cancer Staging Manual

Disqualifiers

Recurrent rectal cancer

Previous treatment with pelvic radiotherapy, rectal cancer surgery, chemotherapy, targeted therapy, immune checkpoint inhibitors (including but not limited to PD-1, PD-L1, CTLA-4)

Proven inability to receive radiotherapy or allergy to the components of Penpulimab, capecitabine, oxaliplatin or their excipients

Intestinal obstruction due to tumor (except in patients who have received a stoma)

Trial design

Treatments tested in this trial

  • Short-course radiotherapy
  • Penpulimab
  • CAPEOX
  • TME surgery

Treatment groups

55 Participants
are divided into 1 treatment group

Sponsors and collaborators

Ruijin Hospital

Lead sponsor

Chia Tai Tianqing Pharmaceutical Group Co., Ltd.

Collaborator