- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06266871
SOX Combined With Tislelizumab and LDRT for Neoadjuvant Treatment of Locally Advanced Gastric Cancer
SOX Combined With Tislelizumab and Low-dose Radiation Therapy for Neoadjuvant Treatment of Locally Advanced Gastric/Gastroesophageal Junction Adenocarcinoma: a Prospective, Multi-center, Single-arm, Phase Ib/II Clinical Trial
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Estimated)
Phase
- Phase 2
- Phase 1
Contacts and Locations
Study Contact
- Name: Pengfei Zhang, M.D.
- Phone Number: +8617828163584
- Email: fly_121988@126.com
Study Contact Backup
- Name: Ming Liu, M.D
- Phone Number: +8618980606324
- Email: mingliu721@aliyun.com
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Age 18-75 years.
- Histologically or cytologically confirmed diagnosis of locally advanced G/GEJ adenocarcinoma (cT3-T4a, N+, M0) as assessed by exploratory laparoscopic surgery, ultrasonography and/or CT/MRI.
- Resectable G/GEJ cancer, as judged by experienced surgeons.
- Eastern Cooperative Oncology Group performance score (ECOG PS) ≤1.
- Agree to provide blood, feces, and tissue specimens.
- The expected survival is longer than 3 months.
- There was no previous antitumor treatment (including chemotherapy, radiotherapy, targeted therapy, immunotherapy, interventional therapy, and other treatments with antitumor effects).
- Adequate organ and hematological function.
- Strict contraception.
- Patients must be able to understand and be willing to sign the written informed consent form. A signed informed consent form must be appropriately obtained prior to the conduct of any trial-specific procedure.
Exclusion Criteria:
- Undergoing other drug clinical trials or having participated in any drug clinical trials one month before enrollment.
- Other tumors that have not been treated or exist at the same time, except carcinoma in situ of the cervix, treated basal cell carcinoma or superficial bladder tumor. If the tumor was cured and no evidence of disease was found for more than 3 years, the patient can be enrolled. All other tumors must be treated at least 3 years before enrollment.
- Allergic to oxaliplatin, S-1, tislelizumab and similar drugs, or suspected allergies.
- With serious gastrointestinal diseases that affect the absorption of oral chemotherapy drugs, such as chronic inflammatory bowel disease.
- History of gastric perforation within 6 months.
- Clinical manifestations include significant arrhythmia, myocardial ischemia, severe atrioventricular block, heart failure, and severe heart valve disease; Or those with severe lung function impairment; Or those with impaired blood system, liver and kidney function who cannot tolerate radiotherapy and chemotherapy; Or severe bone marrow failure; Or those with uncontrollable infections.
- With uncontrollable mental illness.
- Pregnant or lactating women.
- Unable to comply with the research program or procedures.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: SOX+Tislelizumab+LDRT
Laparoscopic exploration is required in all patients to detect occult peritoneal metastases. All patients will start with one cycle of neoadjuvant therapy of SOX plus tislelizumab regimen: S-1: 40-60 mg Bid, d1-14, q3w; oxaliplatin: 130 mg/m2, iv drip, d1, q3w; tislelizumab: 200 mg, iv drip, d1, q3w. Then, LDRT will be performed in the target area (including the primary gastric lesion and positive/suspected positive lymph nodes). After radiotherapy, patients will receive another two cycles of SOX plus tislelizumab regimen. Radical D2 gastric cancer resection will be performed 4-6 weeks after the last administration of SOX plus tislelizumab regimen. The adjuvant therapy will start in 4-6 weeks after the surgery, and we recommend adjuvant treatment with SOX regimen for up to 5 cycles. |
All patients will start with one cycle of neoadjuvant therapy of SOX plus tislelizumab regimen: S-1: 40-60 mg Bid, d1-14, q3w; oxaliplatin: 130 mg/m2, iv drip, d1, q3w; tislelizumab: 200 mg, iv drip, d1, q3w. LDRT will be performed in the target area. After radiotherapy, patients will receive another two cycles of SOX plus tislelizumab. Radical D2 gastric cancer resection will be performed 4-6 weeks after the last administration of SOX plus tislelizumab. The adjuvant therapy will start in 4-6 weeks after the surgery, and we recommend adjuvant treatment with SOX regimen for up to 5 cycles. |
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
pCR rate
Time Frame: 5 months after the last subject participating in
|
defined as the absence of viable tumor cells assessed by histological evaluation criteria after neoadjuvant therapy
|
5 months after the last subject participating in
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
R0 resection rate
Time Frame: 5 months after the last subject participating in
|
defined as the rate of the complete surgical removal of any residual cancer cells in the tumor bed
|
5 months after the last subject participating in
|
MPR rate
Time Frame: 5 months after the last subject participating in
|
defined as tumor residual cells ≤10% in the surgical specimen
|
5 months after the last subject participating in
|
ORR
Time Frame: 5 months after the last subject participating in
|
defined as the proportion of patients with the best overall response of complete response (CR) or partial response (PR)) before surgery
|
5 months after the last subject participating in
|
2-year disease-free survival (DFS) rate
Time Frame: every 3 month postoperation up to 24 months
|
defined as the proportion of patients without disease relapse 2 years after enrolment
|
every 3 month postoperation up to 24 months
|
2-year OS rate
Time Frame: every 3 month postoperation up to 24 months
|
defined as the proportion of patients survived 2 years after enrolment
|
every 3 month postoperation up to 24 months
|
Collaborators and Investigators
Sponsor
Investigators
- Study Director: Mojin Wang, M.D., West China Hospital
Study record dates
Study Major Dates
Study Start (Estimated)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- WCH-2023-1625
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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