Short-course Radiotherapy Followed by Chemotherapy and PD-1 Inhibitor for Locally Advanced Rectal Cancer
Rectal Neoplasms Malignant, Radiotherapy
About this trial
This is an interventional treatment trial for Rectal Neoplasms Malignant focused on measuring rectal cancer, short-course radiotherapy, total neoadjuvant therapy, PD-1 inhibitor
Eligibility Criteria
Inclusion Criteria:
- Biopsy proven rectal adenocarcinoma;
- Distance between tumour and anal verge≤ 10cm;
- Locally advanced tumour;(8th edition AJCC/UICC staging :cT3-T4N0/cT2-4N+,M0) Cancer Staging must be based on pelvic MRI or Endoscopic ultrasound;
- Eastern Cooperative Oncology Group(ECOG) performance score ≤ 1;
Mentally and physically fit for chemotherapy; Adequate blood counts: White blood cell count ≥3.5 x 109/L Haemoglobin levels ≥100g/L Platelet count ≥100 x 109/L Creatinine levels ≤1.0× upper normal limit(UNL) Urea nitrogen levels ≤1.0× upper normal limit(UNL) Alanine aminotransferase(ALT) ≤1.5× upper normal limit(UNL) Aspartate aminotransferase(AST) ≤1.5× upper normal limit(UNL) Alkaline phosphatase(ALP) ≤1.5× upper normal limit(UNL) Total bilirubin(TBIL)
≤1.5× upper normal limit(UNL)
- No excision of tumor, chemotherapy or other anti-tumor treatment after the diagnosis.
- No previous pelvic radiation history;
- Written informed consent;
Exclusion Criteria:
- Previous treatment with anti-PD-1/L1 and anti-CTLA-4 or other immune experimental drugs.
- Severe autoimmune disease: active inflammatory bowel disease (including Crohn's disease, ulcerative colitis), rheumatoid arthritis, scleroderma, systemic lupus erythematosus, autoimmune vasculitis (e.g. Wegener's granulomatosis)
- Symptomatic interstitial lung disease or active infectious/non-infectious pneumonia.
- At risk for bowel perforation: active diverticulitis, intra-abdominal abscess, gastrointestinal (GI) obstruction, abdominal cancer or other known risk factors for bowel perforation.
- history of other malignancies, excluding curable non-melanotic skin cancer and cervix carcinoma in situ;
- Active infection, heart failure, heart attack within 6 months, unstable angina or unstable arrhythmia.
- Any condition investigator considered may interfere with the results or place the patient at increased risk of treatment complications, or other uncontrollable disease.
- Pregnancy or breast feeding
- Immunodeficiency disorders including human immunodeficiency virus (HIV), or history of organ transplantation, allogeneic stem cell transplantation
- Active hepatitis B virus (HBV) hepatitis (HBV-DNA ≥ 2000 U/mL), hepatitis C virus (HCV) hepatitis, active tuberculosis infection.
- Oncology vaccination history or any vaccination within 4 weeks prior to the start of treatment.(Note: influenza vaccines are mostly inactivated and therefore allowed, intranasal preparations are usually live attenuated vaccines and therefore not allowed)
- Concomitant other immune agents, chemotherapeutic agents, other drugs in clinical studies, and long term cortisol application
Sites / Locations
- Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
Arms of the Study
Arm 1
Arm 2
Experimental
Active Comparator
iTNT group
TNT group
The intervention of iTNT group is Short-course radiotherapy followed by neoadjuvant chemotherapy and PD-1 inhibitor, which consists of a short-course radiotherapy(SCRT, 5 Gy x 5 alone), then after 14 days of radiotherapy completed, four cycles of PD-1 inhibitor and four cycles of CAPOX or six cycles of mFOLFOX will be performed. The regimen of PD-1 inhibitor and CAPOX treatment includes Sintilimab 200 mg IV, day 1,Oxaliplatin 130 mg/m2 IV day 1,Capecitabine 1000 mg/m2 twice daily PO for 14 days(3 weeks per cycle). The regimen of PD-1 inhibitor and mFOLFOX treatment includes Sintilimab 200 mg IV day 1(3 weeks per cycle), Oxaliplatin 85 mg/m2 IV day 1, Leucovorin 400 mg/m2 IV day 1, 5-FU 400 mg/m2 IV bolus on day 1, then 1200 mg/m2/day x 2 days (total 2400 mg/m2 over 46-48 hours) IV continuous infusion(2 weeks per cycle), then followed by a total mesorectal excision(TME) or Watch & Wait strategy for clinical complete remission voluntary patients.
The intervention of TNT group is Short-course radiotherapy followed by neoadjuvant chemotherapy, which consists of a short-course radiotherapy(SCRT, 5 Gy x 5 alone), then after 14 days of radiotherapy completed, four cycles of CAPOX or six cycles of mFOLFOX will be performed. The regimen of CAPOX treatment includes Oxaliplatin 130 mg/m2 IV day 1,Capecitabine 1000 mg/m2 twice daily PO for 14 days(3 weeks per cycle). The regimen of mFOLFOX treatment includes, Oxaliplatin 85 mg/m2 IV day 1, Leucovorin 400 mg/m2 IV day 1, 5-FU 400 mg/m2 IV bolus on day 1, then 1200 mg/m2/day x 2 days (total 2400 mg/m2 over 46-48 hours) IV continuous infusion(2 weeks per cycle), then followed by a total mesorectal excision(TME) or Watch & Wait strategy for clinical complete remission voluntary patients.