High- and Low-dose Radiotherapy Combined With PD-1 Inhibitors for MSS CRLM

NCT ID: NCT06045286

Last Updated: 2023-09-21

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

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-09-20

Study Completion Date

2025-12-31

Brief Summary

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This pilot phase I trial aims to investigate the efficacy and safety of high- and low-dose radiotherapy combined with programmed cell death-1 (PD-1) inhibitors in microsatellite stable (MSS) metastatic colorectal cancer (mCRC) that have failed second-line immunotherapy or above.

Detailed Description

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This pilot phase I trial aims to investigate the efficacy and safety of high- and low-dose radiotherapy combined with programmed cell death-1 (PD-1) inhibitors in microsatellite stable (MSS) metastatic colorectal cancer (mCRC) that have failed second-line immunotherapy or above. 30 participants will be enrolled in this study. All will take part at Jiangsu Cancer Hospital.

Conditions

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Colorectal Liver Metastases

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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High- and Low-dose radiotherapy combined with immunotherapy.

All eligible patients will receive high-dose radiotherapy, followed by low-dose radiotherapy combined with PD-1 inhibitor therapy starting within 7 days after completion. The single dose of high-dose radiotherapy will be 6-8 Gy for 3-7 consecutive exposures, and the single dose of low-dose radiotherapy will be 0.5-1.4 Gy for 3-7 consecutive exposures.The PD-1 inhibitor (Zimberelimab) will be administered at the dose recommended in the specification every 3 weeks until disease progression, unacceptable toxicity, and withdrawal of informed consent by the patient.

Group Type EXPERIMENTAL

Radiation: High- and Low-dose radiotherapy

Intervention Type RADIATION

High-dose radiotherapy (6-8Gy×3-7F) followed by low-dose radiotherapy (0.5-1.4Gy×3-7F) starting within 7 days after completion.

PD-1 Inhibitors

Intervention Type DRUG

Immunotherapy (Zimberelimab) is given every three weeks within one week after the end of high-dose radiotherapy.

Interventions

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Radiation: High- and Low-dose radiotherapy

High-dose radiotherapy (6-8Gy×3-7F) followed by low-dose radiotherapy (0.5-1.4Gy×3-7F) starting within 7 days after completion.

Intervention Type RADIATION

PD-1 Inhibitors

Immunotherapy (Zimberelimab) is given every three weeks within one week after the end of high-dose radiotherapy.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Patients with microsatellite stable colorectal liver metastases and failure with second-line or above therapy, and no subsequent standard treatment regimen.
2. Patients with an ECOG score of 0 or 1, and an expected survival period of ≥6 months.
3. During the study, they are willing to follow the arrangement and not use other systemic anti-tumor drugs such as chemotherapy, targeted, Chinese herbal medicine, and proprietary Chinese medicine.
4. 18-70 years old, no gender limit.

Exclusion Criteria

1. Those with a history of severe immediate allergy to the drugs used in this study.
2. Cancer patients who require urgent surgical intervention, such as high-risk pathological fractures, life-threatening bleeding symptoms, etc.
3. Any of the following conditions in the 6 months before screening: myocardial infarction, severe/unstable angina, coronary artery/peripheral artery bypass graft, symptomatic congestive heart failure, cerebrovascular accident, transient cerebral ischemia Onset or symptomatic pulmonary embolism. Patients with known coronary artery disease, congestive heart failure that does not meet the above criteria or left ventricular ejection fraction \<50% must adopt an optimized and stable medical plan determined by the treating doctor. If appropriate, you can consult a cardiologist.
4. Patients with active infection requiring systemic treatment.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Jiangsu Cancer Institute & Hospital

OTHER

Sponsor Role lead

Responsible Party

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Lijun Wang

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Jiangsu Cancer Hospital

Nanjing, Jiangsu, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Yuxuan Ding

Role: CONTACT

18951590901

Facility Contacts

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Yuxuan Ding

Role: primary

18951590901

Other Identifiers

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HaRyPOT

Identifier Type: -

Identifier Source: org_study_id

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