Tislelizumab Combined With Fruquintinib for Metastatic pMMR/MSS Colorectal Cancer

Sun Yat-sen University

Status and phase

Withdrawn

Phase 2

Conditions

Metastatic Colorectal Cancer

mCRC

Treatments

Drug: Tislelizumab & Fruquintinib

Study type

Interventional

Funder types

Other

Industry

Identifiers

NCT05690035

SL-B2022-653-01

Details and patient eligibility

About

This is an open-label phase II study, with the aim of investigating the efficacy and safety of Tislelizumab + Fruquintinib combination therapy in ARID1A-mutated pMMR/MSS metastatic colorectal cancer who have been treated with standard chemotherapy that includes fluoropyrimidine, oxaliplatin, and irinotecan. Patients with hypermutated CRC that carries POLE/POLD1 mutations cannot be included.

Full description

In this open-label phase II study, patients with ARID1A-mutated pMMR/MSS metastatic colorectal cancer who have been treated with standard chemotherapy that includes fluoropyrimidine, oxaliplatin, and irinotecan, will be scheduled for Tislelizumab (200mg ivdrip Q3W day1) + Fruquintinib (5mg/day Q3W day1-14) until intolerable toxicity, disease progression or death. Primary endpoint of this study is ORR and secondary endpoints are OS, PFS, DCR and safety.

Sex

All

Ages

18 to 80 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

18-80 years old (including 18 and 80);
Histologically confirmed colorectal adenocarcinoma and biopsy pathology confirmed MSS/pMMR;
Gene testing confirmed ARID1A gene mutation (nonsynonymous);
No signs of intestinal obstruction; Or intestinal obstruction has been relieved after proximal colostomy;
Has received and failed ≥ 2 line of chemotherapy or progressed on or intolerable to oxaliplatin, irinotecan and fluorouracil chemotherapy after diagnosed with mCRC;
ECOG PS 0-2;
Able to swallow tablets;
Life expectancy of greater than 3 months;
Adequate bone marrow and organ function;
If female and of childbearing potential, must:
Have a negative pregnancy test ≤14 days prior to initiating study treatment
Agree to avoid pregnancy during and for 3 months after study treatment

If male with a partner of childbearing potential, must:

Agree to use adequate, medically approved, contraceptive precautions during and for 3 months after the last dose of study treatment.
Able and willing to provide written informed consent for the study.

Exclusion criteria

Any active autoimmune disease or history of autoimmune disease;
Those who are using immunosuppressive agents, or systemic or absorbable local hormone therapy to achieve immunosuppressive purpose, and continue to use within 2 weeks before enrollment;
Severe allergic reaction to other monoclonal antibodies;
Subjects with clinical symptoms of untreated active brain metastasis or meningeal metastasis;
Have received other PD-1 antibody therapy or other immunotherapy targeting PD-1/PD-L1 in the past;
Patients with high TMB (≥ 30Muts/Mb) and germline or somatic POLE/POLD1 gene mutations in the exonuclease domain;
There are clinical symptoms or diseases of heart that are not well controlled, such as: (a) heart failure of NYHA level 2 or above (b) unstable angina pectoris (c) myocardial infarction occurred within 1 year (d) clinically significant supraventricular or ventricular arrhythmia needs treatment or intervention;
Known hereditary or acquired bleeding and thrombophilia or being treated with thrombolysis or anticoagulation;
Urinary protein ≥ ++, or the 24-hour urine protein quantification greater than 1.0g;
Clinically significant bleeding symptoms or clear bleeding tendency within 3 months before enrollment;
Subjects with active infection;
Congenital or acquired immune deficiency (such as HIV infected persons), or active hepatitis (hepatitis B: HBsAg positive and HBV DNA ≥ 10^4 copies/ml; hepatitis C: HCV antibody positive);
Other advanced malignant tumors within 5 years (except cured skin basal cell carcinoma, cervical carcinoma in situ, ovarian cancer, thyroid cancer and breast cancer);
Live vaccine may be inoculated less than 4 weeks before the study medication or during the study period;
Known or suspected to be allergic to the study drug or to any drug given in this trial;
Have any other disease, metabolic disorder, physical examination anomaly, abnormal laboratory result, or any other conditions that makes the subject not eligible according to the judgment of the investigator.