Clinical trial NCT06788171: PULSAR Combined With PD-1 Ab and Chemotherapy Plus Bev. for CRLM
Official title: A Phase II Trial of PULSAR (Personalized Ultrafractionated Stereotactic Adaptive Radiotherapy) Combined With PD-1 Ab and Chemotherapy Plus Bevacizumab for Colorectal Cancer Liver Metastasis
Study type: INTERVENTIONAL
Overall status: NOT_YET_RECRUITING
Phase: PHASE2
Conditions: Colorectal Cancer Liver Metastasis
Lead sponsor: Fujian Cancer Hospital
Sponsor class: OTHER_GOV
First posted: 2025-01-23
Enrollment: 35
Sex: ALL
Minimum age (years): 18
Maximum age (years): 75
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: To explore Progression-Free-Survival(FPS) of PULSAR(personalized ultrafractionated stereotactic adaptive radiotherapy) combined with PD-1 Ab and Chemotherapy plus Bevacizumabfor CRLM


Eligibility criteria: Inclusion Criteria:

1. Age 18-75 years, any gender.
2. Pathologically confirmed colorectal cancer with liver metastases (stage M1).
3. Karnofsky Performance Status ≥70.
4. Adequate organ function, no contraindications to radiotherapy, or immunotherapy.
5. Microsatellite/mismatch repair status MSS/pMMR.
6. No prior chemotherapy or any other anti-tumor treatment before inclusion.
7. No prior immunotherapy.
8. Ability to comply with the study protocol during the study period.
9. Signed written informed consent.

Exclusion Criteria:

1. Pregnant or lactating women.
2. Pathological diagnosis of signet ring cell carcinoma.
3. History of other malignancies within the past 5 years, except cured skin cancer and cervical carcinoma in situ.
4. Uncontrolled epilepsy, central nervous system disorders, or history of psychiatric disorders that, in the opinion of the investigator, may interfere with signing the informed consent form or affect patient compliance with oral medication.
5. Clinically significant (i.e., active) cardiac disease, such as symptomatic coronary artery disease, New York Heart Association (NYHA) Class II or greater congestive heart failure, or significant arrhythmias requiring drug intervention (see Appendix 12), or history of myocardial infarction within the past 12 months.
6. Organ transplant recipients requiring immunosuppressive therapy and long-term steroid users.
7. Patients with autoimmune diseases.
8. Severe uncontrolled recurrent infections or other severe uncontrolled comorbidities.
9. Subjects with baseline hematological and biochemical parameters not meeting the following criteria: hemoglobin ≥90g/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; serum albumin ≥30g/L.
10. Known deficiency of dihydropyrimidine dehydrogenase (DPD).
11. Allergy to any investigational drug components.

Primary outcomes:
measure: Progression-free-Survival
timeFrame: From enrollment to 36 month
Secondary outcomes:
measure: Adverse Reactions
timeFrame: From enrollment to 36 month
measure: Overall Survival (OS)
timeFrame: From enrollment to 36 month
measure: Objective Response Rate (ORR)
timeFrame: From enrollment to 36 month
Other outcomes:
Locations:
city: Fuzhou
country: China
facility: Fujian Cancer Hospital
state: Fujian
Study officials:
References: