Organ Preservation With Tislelizumab and Total Neoadjuvant Therapy in Patients With Low Rectal Cancer: RELIEVE -01 Study

NCT ID: NCT06390982

Last Updated: 2024-04-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

PHASE2

Total Enrollment

46 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-05-31

Study Completion Date

2028-12-31

Brief Summary

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This is an open-label, multi-center, single-arm clinical study. All patients received concurrent chemoradiation therapy (CRT) followed by 4 cycles of tislelizumab combined with CAPOX, then underwent clinical response assessment. Patients who achieved CR (cCR+ pCR confirmed by local resection of ncCR) continue tislelizumab combined with CAPOX for another 4 cycles and tislelizumab for 9 cycles, then Watch and Wait. Patients who did not achieved CR underwent total mesorectal excision (TME).

Detailed Description

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Conditions

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RECTAL NEOPLASMS Rectal Cancer

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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tislelizumab

CRT followed by 4 cycles of tislelizumab plus CAPOX and clinical response assessment:

participants with CR (cCR+ pCR confirmed by local resection of ncCR): another 4 cycles of tislelizumab plus CAPOX and 9 cycles of tislelizumab, then watch and wait.

participants with non-CR: underwent TME

Group Type EXPERIMENTAL

Radiotherapy

Intervention Type RADIATION

45-50.4Gy in 25-28 fractions to the pelvis on Days 1-5 every week.

Tislelizumab

Intervention Type DRUG

200 mg IV on Day 1 of each 21-day cycle.

Capecitabine

Intervention Type DRUG

Capecitabine 1000 mg/m2 orally twice daily (bid) on Day 1 to 14 of each 21-day cycle in CAPOX regimen

Oxaliplatin

Intervention Type DRUG

130 mg/m2 IV on Day 1 of each 21-day cycle in CAPOX regimen

Capecitabine

Intervention Type DRUG

825 mg/m2 orally twice daily (bid) 5 days/week during radiotherapy.

Interventions

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Radiotherapy

45-50.4Gy in 25-28 fractions to the pelvis on Days 1-5 every week.

Intervention Type RADIATION

Tislelizumab

200 mg IV on Day 1 of each 21-day cycle.

Intervention Type DRUG

Capecitabine

Capecitabine 1000 mg/m2 orally twice daily (bid) on Day 1 to 14 of each 21-day cycle in CAPOX regimen

Intervention Type DRUG

Oxaliplatin

130 mg/m2 IV on Day 1 of each 21-day cycle in CAPOX regimen

Intervention Type DRUG

Capecitabine

825 mg/m2 orally twice daily (bid) 5 days/week during radiotherapy.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Able to provide written informed consent, understand and comply with the requirements and evaluation schedule
2. ≥18, ≤75 years old
3. Histologically confirmed rectal adenocarcinoma
4. immunohistochemistry confirmed pMMR (positive for MLH1, MSH2, MSH6 and PMS2), or PCR /NGS confirmed MSI-L or MSS
5. The distance from the lower edge of the tumor to the anal verge is ≤5 cm through colonoscopy, digital anal examination or MRI
6. clinical stage cT1-3N1M0 or cT2-3N0M0 (the 8th UICC/AJCC; T and N is evaluated by MRI)
7. Resectable primary tumor assessed by the Investigator
8. Have not received any anti-tumor treatment for rectal cancer
9. ECOG PS ≤ 1
10. Adequate organ function
11. Female subjects with the ability to become pregnant must have a serum pregnancy test with a negative result within 72 hours before the first dose, and be willing to use highly effective contraceptive methods during the trial and 120 days after the last dose. Male subjects whose partners are women of childbearing potential should be surgically sterilized or agree to use a highly effective method of contraception during the trial and for 120 days after the last dose.

Exclusion Criteria

1. Histologically confirmed poorly differentiated/undifferentiated adenocarcinoma, mucinous adenocarcinoma and signet ring cell carcinoma
2. Have received any treatments for rectal cancer, or evidence of distant metastasis
3. Presence of following high risk factors assessed by MRI: MRF +, EMVI+, cN2, Positive lateral lymph nodes, T3d
4. Presence or in high risk of obstruction, perforation or bleeding;
5. Not suitable for long-course radiotherapy
6. Cannot tolerate surgery
7. ≥2 colorectal cancer lesions at the same time
8. Contraindications for MRI examination
9. Other malignant tumors in the past or at the same time
10. Have an active autoimmune disease requiring systemic therapy within the past 2 years
11. HIV infection
12. Untreated chronic hepatitis B or chronic hepatitis B virus (HBV) carriers (HBV DNA \> 500 IU/mL) or active HCV carriers with detectable HCV RNA;
13. Hypersensitivity to any ingredient of tislelizumab, capecitabine, and oxaliplatin or to any component of the container
14. Other conditions judged by the researcher that do not meet the enrollment requirements
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Shanghai Zhongshan Hospital

OTHER

Sponsor Role collaborator

Shanghai Changzheng Hospital

OTHER

Sponsor Role collaborator

Huadong Hospital

OTHER

Sponsor Role collaborator

RenJi Hospital

OTHER

Sponsor Role collaborator

Hebei Medical University Fourth Hospital

OTHER

Sponsor Role collaborator

First Hospital of China Medical University

OTHER

Sponsor Role collaborator

Liaoning Cancer Hospital & Institute

OTHER

Sponsor Role collaborator

Fudan University

OTHER

Sponsor Role lead

Responsible Party

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Xu jianmin

Chief Physician

Responsibility Role PRINCIPAL_INVESTIGATOR

Central Contacts

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Min Jian Xu, MD

Role: CONTACT

86-21-64041990

Tao Wen Tang, MD

Role: CONTACT

Other Identifiers

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BGB-A317-2011-IIT

Identifier Type: -

Identifier Source: org_study_id

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