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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT04304209
Other study ID # B2019-149
Secondary ID
Status Active, not recruiting
Phase Phase 2
First received
Last updated
Start date October 28, 2019
Est. completion date October 18, 2026

Study information

Verified date January 2023
Source Sun Yat-sen University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

In this study, participants with locally advanced rectal cancer patients will be treated according to MMR/MSI status. There will be two cohorts in this study: Cohort A and Cohort B. For Cohort A, dMMR or MSI-H patients will receive 4 cycles of neoadjuvant Pd1 antibody Sintilimab,followed by one of the following treatments: (1) surgery and adjuvant treatment, (2)another 4 cycles of sintilimab, followed by radical surgery or observation (only for cCR) . For Cohort B, pMMR/MSS/MSI-L patients will be randomized to receive neoadjuvant chemoradiotherapy ± four cycles of Pd1 antibody Sintilimab,followed by one of the following treatments: (1) curative surgery and four cycles of adjuvant chemotherapy;(2)four cycles of chemotherapy then observation (only cCR after neoadjuvant therapy)


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 195
Est. completion date October 18, 2026
Est. primary completion date October 18, 2026
Accepts healthy volunteers No
Gender All
Age group 18 Years to 75 Years
Eligibility Inclusion Criteria: 1. Histologically proven colorectal adenocarcinoma; 2. Cohort 1: Biopsy tissues with IHC indicates deficient mismatch repair(dMMR),that is,the loss of at least one of the four proteins ,MSH1,MSH2,MSH6,PMS2;or gene detection implies MSI-H; Cohort 2: Biopsy tissues with IHC indicates proficient mismatch repair(pMMR),that is positivity of all four proteins ,MSH1,MSH2,MSH6,PMS2;or gene detection implies MSS/MSI-L 3. Clinical stage for rectal cancer patients is cT3-4N0M0 or cTxN+M0; 4. Preoperative staging methods: all patients need to accept digital rectal examination(DRE).Patients with rectal cancer undergo high-resolution MRI±ultrasound colonoscopy/transrectal ultrasound for preoperative staging. Perienteric lymph nodes with short diameter =10mm or the shape of lymph nodes and its MRI characteristics are consistent with typical lymph node metastasis. If endoscopic ultrasonography is used in combination, and there is a contradiction between staging methods, the data should be submitted to the evaluation team of our center for the accurate staging; 5. No symptoms of ileus; or ileus is alleviated after proximal colostomy. 6. No rectal surgery except preventative stoma; 7. No chemotherapy or radiotherapy; 8. No biotherapy (e.g.monoclonal antibodies), immunotherapy (e.g.anti-PD-1 antibody,anti-PD-L1 antibody,anti-PD-L2 antibody or CTLA-4 antibody),or other clinical trials agents; 9. No limit to previous endocrine therapy. 10. Age between 18 and 75 years; 11. ECOG performance status of 0 or 1; 12. Life expectancy: more than 2 years; 13. Hematopoietic: WBC>3×109/L;PLT>80×109/L; Hb>90g/L; 14. Hepatic: ALT and AST<2 times upper limit of normal (ULN); bilirubin<1.5 times ULN; 15. Renal: creatinine <1.5 times ULN or creatinine clearance = 60 mL/min. Exclusion Criteria: 1. Arrhythmias require antiarrhythmic therapy (with the exception of ß-blockers or digoxin), symptomatic coronary artery disease or local myocardial ischemia (myocardial infarction within the past 6 months) or congestive heart failure exceeding NYHA II; 2. Severe hypertension with poor control after medication; 3. A known history of testing positive for HIV or chronic hepatitis B or C (high copy virus DNA) at active stage; 4. Patients with active tuberculosis (TB) are receiving anti-tuberculosis treatment or have received anti-tuberculosis treatment within 1 year before screening; 5. Other active severe clinical infections (NCI-CTC5.0); 6. Apparent distant metastasis away from the pelvic before surgery; 7. Cachexia, organ function decompensation; 8. Previous pelvic or abdominal radiotherapy; 9. Multiple primary colorectal cancers; 10. Epilepsy require medical treatment (such as steroid or antiepileptic therapy); 11. Other malignancy within the past 5 years with the exception of effectively treated carcinoma in situ of the cervix or basal cell carcinoma of the skin; 12. Drug abuse and medical, psychological or social factors that may interfere with patients' participation in the study or affect the evaluation of the study; 13. Patients have any active autoimmune diseases or a history of autoimmune diseases(including but not limited to: interstitial pneumonia, uveitis, enteritis, hepatitis, hypophysitis, nephritis, hyperthyroidism and decreased thyroid function; patients with vitiligo or with complete remission of asthma in childhood and without any intervention in adulthood may be included; patients with asthma requiring bronchodilators intervention are not included. 14. Received any anti-infection vaccine (e.g. influenza vaccine, chickenpox vaccine, etc.) within 4 weeks before enrollment; 15. Complications require long-term treatment with immunosuppressive drugs, or requiring systemic or local use of immunosuppressive corticosteroids(>10mg/day prednisone or other therapeutic hormones); 16. Known or suspected allergy to the study drugs or to any drugs related to this trial; 17. Any unstable condition or which endangers the patients' safety and compliance; 18. Pregnant or breast-feeding women who are fertile without effective contraception; 19. Refuse to sign the informed consent.

Study Design


Intervention

Drug:
Oxaliplatin
130mg/m2, d1 q3w, in Capeox regimen (100mg/m2 when used cocurrently with radiotherapy), intravenous infusion
Capecitabine
1000mg/m2, bid, qd1-14, q3w, in Capeox regimen, oral administration
Sintilimab
200mg, d1 q3w, intravenous infusion
Radiation:
radiotherapy
neoadjuvant radiotherapy with 50Gy to GTV, 45Gy to CTV in 25 fractions.
Procedure:
total mesorectal excision
total mesorectal excision after neoadjuvant treatment
Other:
Watch and wait
Watch and wait for cCR patients after neoadjuvant treatment

Locations

Country Name City State
China Medical Oncology,Sun Yat-sen University Cancer Center Guangzhou Guangdong

Sponsors (1)

Lead Sponsor Collaborator
Sun Yat-sen University

Country where clinical trial is conducted

China, 

References & Publications (2)

Allegra CJ, Yothers G, O'Connell MJ, Beart RW, Wozniak TF, Pitot HC, Shields AF, Landry JC, Ryan DP, Arora A, Evans LS, Bahary N, Soori G, Eakle JF, Robertson JM, Moore DF Jr, Mullane MR, Marchello BT, Ward PJ, Sharif S, Roh MS, Wolmark N. Neoadjuvant 5-FU or Capecitabine Plus Radiation With or Without Oxaliplatin in Rectal Cancer Patients: A Phase III Randomized Clinical Trial. J Natl Cancer Inst. 2015 Sep 14;107(11):djv248. doi: 10.1093/jnci/djv248. Print 2015 Nov. Erratum In: J Natl Cancer Inst. 2016 Apr;108(4). pii: djw057. doi: 10.1093/jnci/djw057. J Natl Cancer Inst. 2018 Jul 1;110(7):794. — View Citation

Le DT, Uram JN, Wang H, Bartlett BR, Kemberling H, Eyring AD, Skora AD, Luber BS, Azad NS, Laheru D, Biedrzycki B, Donehower RC, Zaheer A, Fisher GA, Crocenzi TS, Lee JJ, Duffy SM, Goldberg RM, de la Chapelle A, Koshiji M, Bhaijee F, Huebner T, Hruban RH, Wood LD, Cuka N, Pardoll DM, Papadopoulos N, Kinzler KW, Zhou S, Cornish TC, Taube JM, Anders RA, Eshleman JR, Vogelstein B, Diaz LA Jr. PD-1 Blockade in Tumors with Mismatch-Repair Deficiency. N Engl J Med. 2015 Jun 25;372(26):2509-20. doi: 10.1056/NEJMoa1500596. Epub 2015 May 30. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary complete response rate the proportion of CR cases (pCR for those who underwent surgery and cCR for those who didn't receive surgery) 6 weeks after curative surgery for pCR; 6 weeks after the completion of neoadjuvant therapy for cCR
Secondary Acute toxiticy according CTCAE5.0 Acute toxiticy according CTCAE5.0 From start of treatment to 3 months after the adjuvant therapy or last dose of treatment
Secondary Tumor regresssion grade according to AJCC TRG grading system Tumor regresssion grade according to AJCC TRG grading system 6 weeks after curative surgery
Secondary R0 resection rate R0 resection rate 6 weeks after curative surgery
Secondary Local recurrence Local recurrence 5 years after curative surgery
Secondary Distant metastasis Distant metastasis 5 years after curative surgery
Secondary Tumor response tumor volume reduction rate (TVRR) reaching 20% or above 6 weeks after first study treatment
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