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A Randomized, Multicenter Phase II Basket Study of Hypofractionated Radiotherapy/Stereotactic Body Radiotherapy Followed by Immunotherapy-Based Systemic Therapy +/- L. Rhamnosus M9 for the First-Line Treatment of Advanced Digestive System Malignancies.

A Randomized, Multicenter Phase II Basket Study of Hypofractionated Radiotherapy/Stereotactic Body Radiotherapy Followed by Immunotherapy-Based Systemic Therapy +/- L. Rhamnosus M9 for the First-Line Treatment of Advanced Digestive System Malignancies

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06349044
Enrollment
120
Registered
2024-04-05
Start date
2024-03-20
Completion date
2025-12-31
Last updated
2024-08-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Biliary Tract Carcinoma, Colorectal Adenocarcinoma, Hepatocellular Carcinoma, Her-2 Negative Adenocarcinoma of the Gastro-oesophageal Junction/Gastric Adenocarcinoma

Keywords

radiotherapy, immunotherapy, L. rhamnosus M9

Brief summary

Based on the interaction between radiation therapy and immunotherapy and the potential potentiation of Probio-M9 for the treatment of ICIs, this study is planned to design an integrated treatment protocol for the first-line treatment of advanced gastrointestinal tumors through the use of macrofractionated radiotherapy as a means of immune activation, combined with the synergistic effect of Probio-M9 microbial agents and PD-1 inhibitors.

Interventions

RADIATIONHypofractionated radiotherapy/SBRT(5-10Gy/fx,3-5 fx)

RT: one primary or metastatic focus was selected for hypofractionated radiotherapy/SBRT (5-10 Gy/fx, 3-5 fx) in each round, the target area included only the GTV of the visible tumor lesion, and the GTV was expanded by 5-10 mm to generate the PTV, and the prophylactic lymphatic drainage area could not be irradiated.

DRUGAnti-PD-1 monoclonal antibody

Sintilimab 200mg d1 iv q3w

Oxaliplatin130mg/m2 d1 iv;Capecitabine1000mg/m2 d1-d14

DRUGAnti-VEGF 15mg/kg

Bevacizumab 15mg/kg d1 iv q3w

DRUGAnti-VEGF 7.5mg/kg

Bevacizumab 7.5mg/kg d1 iv q3w

DRUGGemcitabine and Cisplatin

Gemcitabine1000mg/m2 d1 d8 iv;Cisplatin 25mg/m2 d1 d8 iv q3w

Sponsors

Zhejiang Cancer Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Caregiver)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* histopathologically confirmed diagnosis of malignant tumors of the gastrointestinal tract (including Her-2 negative adenocarcinoma of the gastroesophageal junction/gastric adenocarcinoma, hepatocellular carcinoma, malignant tumors of the biliary system, colorectal cancer); * advanced patients evaluated as initially non-operable resectable who have not received any antitumor therapy; * have at least one measurable or evaluable lesion according to RECIST v1.1 criteria in addition to the primary lesion, with non-operable resectable lymph node metastases to the liver, lung, bone, pelvis, retroperitoneum and/or superficial sites (except for brain metastases), as evaluated by discussion in the framework of the MDT * age 18-75 years; * ECOG score of 0-1; * be able to accept the treatment regimen during the study; * sign a written informed consent.

Exclusion criteria

* a history of uncontrolled epilepsy, central nervous system disease, or psychiatric disorder of clinical severity that, in the judgment of the investigator, may preclude the signing of an informed consent form or interfere with the patient's adherence to oral medication; * prior immunotherapy for any indication or a history of severe hypersensitivity reactions to other monoclonal antibodies; * clinically significant (i.e., active) cardiac disease, such as symptomatic coronary artery disease, New York Heart Association (NYHA) class II or worse congestive heart failure or severe arrhythmias requiring pharmacologic intervention, or history of myocardial infarction within the last 12 months; * organ transplantation requiring immunosuppressive therapy; * a history of other malignant disease within the last five years; * persons with severe uncontrolled recurrent infections, or other severe uncontrolled concomitant diseases; * Subjects whose baseline blood routine and biochemical indexes do not meet the following criteria: hemoglobin ≥80g/L; absolute neutrophil count (ANC) ≥1.5×10\^9/L; platelets ≥100×10\^9/L; ALT, AST ≤2.5 times the upper limit of normal; ALP ≤2.5 times the upper limit of normal; serum total bilirubin \<1.5 times the upper limit of normal; serum creatinine \<1 times the upper limit of normal; and serum creatinine \<1 times the upper limit of normal. times the upper limit of normal; * the patient currently has active gastrointestinal diseases such as active gastric and duodenal ulcers, ulcerative colitis, or active bleeding from unresected tumors, or other conditions that may cause gastrointestinal bleeding or perforation as determined by the investigator; * persons with active bleeding or bleeding tendencies; * women who are pregnant or breastfeeding; * allergy to any of the study drug ingredients.

Design outcomes

Primary

MeasureTime frameDescription
ORRORR will be assessed 2 months after radiotherapyfor off-target lesions of radiotherapy

Secondary

MeasureTime frameDescription
ORRORR will be assessed 2 months after radiotherapyirradiated lesion
adverse effects rateFrom date of randomization until the date of death from any cause, assessed up to 5 years ]CTC 4.0
QolFrom date of randomization until the date of death from any cause, assessed up to 10 years]EORTC-C30
PFSFrom the date of randomization to the date when progress was first recorded,assessed up to 36 months.Rate of 3 year disease free survival
OSFrom date of randomization until the date of death from any cause, assessed up to 36 monthsRate of 3 year overall survival

Countries

China

Contacts

Primary Contactzhu ji
zhuji@zjcc.org.cn13501978674

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026