A Phase II Clinical Study to Assess the Efficacy and Safety of IBI310 or Placebo Combined With Sintilimab for Advanced Cervical Cancer Subjects Who Have Failed or Cannot Tolerate First-line or Above Platinum-based Chemotherapy

NCT04590599CompletedPHASE2INTERVENTIONAL

Summary

Key Facts

Lead Sponsor

Innovent Biologics (Suzhou) Co. Ltd.

Enrollment

205

Start Date

2020-12-08

Completion Date

2023-11-20

Study Type

INTERVENTIONAL

Official Title

A Randomized, Double-blind, Controlled, Parallel-cohort Phase II Clinical Study to Assess the Efficacy and Safety of IBI310 or Placebo Combined With Sintilimab for Advanced Cervical Cancer Subjects Who Have Failed or Cannot Tolerate First-line or Above Platinum-based Chemotherapy

Interventions

IBI310PlaceboSintilimab

Conditions

Advanced Cervical Cancer

Eligibility

Age Range

18 Years – 75 Years

Sex

FEMALE

Inclusion Criteria:

1. The subject must sign the written informed consent form, and can comply with the visits and related procedures specified in the protocol.
2. Aged ≥18 years and ≤75 years.
3. Diagnosed with cervical cancer by histology/cytology.
4. Patients with relapsed or metastatic cervical cancer who have had progressed or relapsed after receiving at least first-line of platinum-based chemotherapy (if a patient has progressed or relapsed during or within 6 months after receiving platinum-based neoadjuvant or adjuvant chemotherapy, she will be deemed to have received first-line treatment).
5. The subject's previous systemic treatment must have ended ≥4 weeks before the first study administration, and the treatment-related AEs have recovered to Common Terminology Criteria for Adverse Events (CTCAE) V5.0 grade ≤1 (except for alopecia and fatigue).

Exclusion Criteria:

1. Diagnosis of other malignant tumors within 5 years before the first administration, excluding radically cured skin basal cell carcinoma, skin squamous cell carcinoma, radically resected carcinoma in situ and/or thyroid papillary carcinoma.
2. Pleural effusion, ascites, and pericardial effusion with clinical symptoms or requiring drainage (patients with effusion that does not require drainage or patients with no significant increase in the effusion within 3 days after stopping drainage can be selected).
3. Patients who are planning to undergo or have previously received organ or bone marrow transplantation.
4. Patients with acute or chronic active hepatitis B or C infection, hepatitis B virus (HBV) DNA\> 200 IU/ml or 103 copies/ml; hepatitis C virus (HCV) antibody positive and HCV-RNA level higher than the lower limit of detection. Patients with acute or chronic active hepatitis B or C infection who have received nucleotide antiviral therapy and are below the above standards can be selected.
5. Meningeal metastases or symptomatic central nervous system (CNS) metastases. Patients with asymptomatic brain metastases who do not need treatment with glucocorticoids, anticonvulsants or mannitol after radiotherapy can be enrolled.

Outcome Measures

Primary Outcomes

Objective response rate (ORR)

Objective response rate (ORR) assessed by the Independent Radiological Review Committee (IRRC) according to the Response Evaluation Criteria in Solid Tumors (RECIST) V1.1

Time frame: Assessed week 6,week 12,week 18 ,and every 9 weeks (or every 12 weeks after 54 weeks of treatment) for duration of study participation which is estimated to be 24 months.

Objective response rate (ORR)

ORR assessed by the investigator according to the RECIST V1.1

Time frame: Assessed week 6,week 12,week 18 ,and every 9 weeks (or every 12 weeks after 54 weeks of treatment) for duration of study participation which is estimated to be 24 months.

Secondary Outcomes

Disease Control Rate(DCR)

DCR assessed by the investigator and IRRC according to the RECIST V1.1

Time frame: Assessed week 6,week 12,week 18 ,and every 9 weeks (or every 12 weeks after 54 weeks of treatment) for duration of study participation which is estimated to be 24 months.

Locations

Innovent Biologics, Inc., Suzhou, China

Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Zhenjiang, China

Linked Papers

2025-01-18

IBI310 plus sintilimab vs. placebo plus sintilimab in recurrent/metastatic cervical cancer: A double-blind, randomized controlled trial

It remains unclear whether adding CTLA-4 blockade to PD-1/PD-L1 blockade improves clinical outcomes in cervical cancer (CC). In this randomized, double-blind, placebo-controlled, phase 2 study (ClinicalTrials.gov: NCT04590599), patients with recurrent/metastatic CC (R/M CC) who experienced disease progression after or during platinum-based chemotherapy were enrolled from 37 centers across China and randomly assigned (1:1), stratified by PD-L1 expression and prior treatment lines, to receive either IBI310 plus sintilimab or placebo plus sintilimab intravenously every 3 weeks for 12 weeks, followed by sintilimab alone. The primary endpoint was the objective response rate (ORR). Pivotal secondary endpoints included progression-free survival (PFS), overall survival (OS), and safety. 205 patients were randomized to receive IBI310-sintilimab (n = 103) or placebo-sintilimab (n = 102). The ORR difference between the IBI310-sintilimab arm (32.3%, 95% confidence interval [CI]: 23.3%-42.5%) and the placebo-sintilimab arm (23.5%, 95% CI: 15.5%-33.1%) was not significant (p = 0.17). IBI310-sintilimab and placebo-sintilimab exhibited median PFS values of 3.6 (95% CI: 2.7-6.3) and 4.2 months (95% CI: 2.8-6.2), respectively (hazard ratio [HR] = 0.91, 95% CI: 0.65-1.27; p = 0.58). The median OSs were 13.9 months (95% CI: 11.5-25.6) in the IBI310-sintilimab arm and 17.2 months (95% CI: 13.7-25.9) in the placebo-sintilimab arm (HR = 1.12, 95% CI: 0.79-1.58; p = 0.54). Adding IBI310 to sintilimab increased the incidence of grade ≥3 treatment-related adverse events (55% versus 19%). Compared to single-agent PD-1/PD-L1 blockade, dual blockade of CTLA-4 and PD-1/PD-L1 did not significantly improve clinical outcomes in R/M CC. This work was funded by Innovent Biologics (Suzhou).

Linked Investigators