A Study of Envafolimab in Subjects With Stage III Non-Small Cell Lung Cancer

Phase 2

Not yet recruiting

• Conditions: Non-small Cell Lung Cancer Stage III
• Interventions: Drug: Envafolimab

• Registration Number: NCT05414630
• Lead Sponsor: Anhui Provincial Cancer Hospital

Brief Summary

This is a prospective, single arm, phase II study to evaluate the efficacy and safety of Envafolimab in subjects with locally advanced/unresectable (Stage III) non-small cell lung cancer that has not progressed after prior concurrent/sequential chemoradiotherapy.

Detailed Description

Trial design: This is a single-arm, open-label trial in patients with locally advanced/unresectable (stage III) NSCLC who did not have disease progression after concurrent/sequential chemoradiotherapy to evaluate the efficacy of Envafolimab as a consolidation treatment of the efficacy and safety.

Background:The PACIFIC and GEMSTONE-301 studies have shown the efficacy of immunization as consolidation therapy in stage III NSCLC.

Patients with stage III NSCLC who did not have disease progression after at least two cycles of concurrent/sequential chemoradiotherapy (including platinum) will receive Envafolimab (300mg, Q3W, subcutaneous injection) within 1-42 days after the end of chemoradiotherapy. The maximum duration of Envafolimab treatment is 2 years.

Study Timeline

• Status Verified: 2022-06
• Study Start: 2022-06
• Study First Submitted: 2022-06-08
• Study First Submitted QC: 2022-06-08
• Last Update Submitted: 2022-06-08
• Study First Posted: 2022-06-10
• Last Update Posted: 2022-06-10
• Primary Completion: 2024-06
• Study Completion: 2025-06

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: All
• Target Recruitment: 30

Inclusion Criteria

1. Age at least 18 years.
2. Have histologically confirmed locally advanced/unresectable stage III non-small cell lung cancer.
3. The first dose of Envafolimab will be administered within 1-42 days (including 42 days) after concurrent/sequential chemoradiotherapy is completed.
4. ECOG performance status 0-2.
5. Life expectancy ≥ 12 weeks.
6. Adequate organ function.
7. For female subjects of childbearing age, urine or serum pregnancy test shall be conducted before receiving the first study drug administration, and the result is negative.
8. The subject and the subject's sexual partner need to use a medically approved contraceptive measure during the study treatment period and within 6 months after the end of the study treatment period.
9. Willing to participate in this trial; fully understand and informed of this trial, and able to provide written informed consent form (ICF).

Exclusion Criteria

1. Disease progression after concurrent/sequential chemoradiotherapy.
2. Has received a live vaccine within 28 days prior to the first dose of investigational product.
3. Major surgical procedure (as determined by investigators) within 28 days prior to the first dose of investigational product.
4. Known positive driver gene mutation, such as EGFR sensitive mutation, ALK gene translocation or ROS1 rearrangement.
5. Received any antibody/drug targeting T-cell coregulatory proteins (immune checkpoints), with a washout period of less than 28 days.
6. Known history of human immunodeficiency virus (HIV) infection and/or acquired immune deficiency syndrome.
7. Subjects at active phase of chronic hepatitis B or with active hepatitis C.
8. History of organ transplantation.
9. History of inflammatory bowel disease or active inflammatory bowel disease (for example Crohn's disease or ulcerative colitis).
10. Severe allergic reaction to other monoclonal antibodies.
11. Subjects with other conditions that in the investigator's opinion may influence subject's compliance or make subjects not suitable for participating in this trial.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Envafolimab	Envafolimab	Envafolimab: subcutaneous injection, 300mg, Q3W

Primary Outcome Measures

Name	Time	Method
Progress Free Survival (PFS)	24 months after the last subject participating in.	Progression-free survival (PFS per RECIST 1.1) is defined as the time from the date of randomization to the first date of recorded progression or all-cause death, whichever comes first.

Secondary Outcome Measures

Name	Time	Method
Duration of Response (DOR)	24 months after the last subject participating in.	DoR (per RECIST 1.1) is defined as the time from the date for first documented response of complete response (CR) or partial response (PR) to the date of first documented of disease progression or death, whichever occurs first.
Objective Response Rate (ORR)	24 months after the last subject participating in.	The proportion of subjects with complete response (CR) and partial response (PR) in total subjects.
Overall Survival (OS)	24 months after the last subject participating in.	OS is defined as the time from the date of randomization to the date of death due to any cause.
Percentage of Patients Alive at 24 Months (OS24)	24 months after the last subject participating in.	OS24 was defined as the percentage of patients who were alive at 24 months after randomization per the Kaplan-Meier estimate of OS at 24 months.

Trial Locations

Locations (1)

Anhui Provincial Cancer Hospital; 🇨🇳 Hefei, Anhui, China