This is a Multicenter, Open-label, Phase I/II Study to Explore the Safety, Tolerability, Pharmacokinetics (PK), and Preliminary Efficacy of GFH276 in Patients With Advanced NSCLC Harboring a RAS Mutation. (GFH276X1203)

September 22, 2026 updated by: Genfleet Therapeutics (Shanghai) Inc.

A Phase Ib/II, Multicenter, Open-Label Study To Evaluate Safety, Efficacy And Pharmacokinetics Of GFH276 In Combination With Tislelizumab, Pemetrexed And Platinum (Carboplatin Or Cisplatin) As First-Line Therapy In Participants With Locally Advanced Or Metastatic Non-Squamous Non-Small-Cell Lung Cancer Harboring RAS Mutation

This is an open-label, multicenter Phase Ib/II clinical study evaluating GFH276 in combination with tislelizumab plus pemetrexed/platinum based regimen as first-line therapy in participants with locally advanced or metastatic non-squamous non-small-cell lung cancer (NSCLC) harboring RAS mutation or KRAS amplification.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Detailed Description

This open-label, multicenter Phase Ib/II study enrolls participants with locally advanced or metastatic non-squamous NSCLC with RAS mutation or KRAS amplification, who have not received prior systemic anti-cancer therapy for advanced disease.

In Phase Ib, dose escalation of GFH276 will be performed in assigned arm to identify the recommended Phase 2 dose (RP2D) based on dose-limiting toxicity (DLT) and the overall safety profile. After RP2D determination, participants will be enrolled in Phase II to further evaluate the anti-tumor efficacy and long-term safety of each combination regimen. Study-related assessments will include tumor imaging, laboratory tests, adverse event monitoring, and pharmacokinetic sampling throughout the treatment period.

Participants will continue their assigned study treatment until confirmed disease progression, intolerable toxicity, withdrawal of consent, or study closure.

Study Type

Interventional

Enrollment (Estimated)

84

Phase

  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Histologically/cytologically confirmed locally advanced or metastatic non squamous NSCLC (AJCC 8th edition Stage IIIB-IV).
  2. Confirmed RAS mutation or KRAS amplification；tumor cell PD L1 test report available
  3. No prior systemic anti-tumor therapy for advanced disease
  4. At least 1 measurable lesion outside the central nervous system (CNS) per RECIST v1.1
  5. ECOG performance status 0 or 1
  6. Life expectancy>3 months
  7. Willing to provide written informed consent
  8. Fertile participants must use effective contraception
  9. Adequate organ function

Exclusion Criteria:

  1. Other active malignancy within 3 years
  2. Symptomatic brain metastases, leptomeningeal disease, spinal cord compression, or primary brain tumor
  3. History of active clinically significant cardiovascular dysfunction
  4. Known to harbor other targetable driver gene alterations
  5. Presence of active infection (HIV, HBV, HCV,)
  6. Prior anti-tumor therapy within 28 days or 5 half-lives
  7. Diagnosis of unstable thrombotic events requiring therapeutic intervention within 3 months prior to the first dose of study treatment.
  8. Hypersensitivity to study drugs, or inability to swallow tablets or comply with study procedures.
  9. History of central nervous system (CNS)disease
  10. Presence of clinically significant interstitial lung disease, radiation pneumonitis, or immune-related pneumonia that requires treatment.
  11. With uncontrollable or symptomatic pleural effusion, ascites, or pericardial effusion.
  12. Active autoimmune disease requiring systemic treatment.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: GFH276 ±Tislelizumab + AP

GFH276 once daily; Tislelizumab 200 mg, IV; AP: Pemetrexed 500 mg/m², IV; Cisplatin/Carboplatin 75 mg/m²/AUC=5, IV, every 3 weeks
Drug: GFH276

Oral GFH276, administered at specified dose on schedule.

Drug: with or without Tislelizumab

Tislelizumab 200 mg, intravenous infusion, once every 3 weeks.or without Tislelizumab

Drug: Pemetrexed

Pemetrexed 500 mg/m², intravenous infusion, once every 3 weeks.

Drug: Cisplatin

Cisplatin 75 mg/m², intravenous infusion, once every 3 weeks.

Drug: Carboplatin

Carboplatin at AUC=5, intravenous infusion, once every 3 weeks.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Phase Ib:Incidence of Dose-Limiting Toxicity (DLT) Events
Time Frame: First 21 days

The incidence of DLT events
First 21 days
Phase II:Objective Response Rate (ORR)
Time Frame: From the first dose until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 36 months

Assessed by investigators according to RECIST 1.1
From the first dose until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 36 months
Phase Ib:Incidence and Severity of Adverse Events (AE) and Serious Adverse Events (SAE)
Time Frame: From the first dose until 30 days after the last dose, assessed up to 36 months

The incidence and severity of AEs and SAEs，according to NCI CTCAE，v6.0
From the first dose until 30 days after the last dose, assessed up to 36 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
DCR
Time Frame: From the first dose until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 36 months

Disease Control Rate (DCR)
From the first dose until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 36 months
DoR
Time Frame: From the first dose until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 36 months

Duration of Response assessed by investigators
From the first dose until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 36 months
TTR
Time Frame: From the first dose until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 36 months

Time To Response assessed by investigators
From the first dose until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 36 months
PFS
Time Frame: From the first dose until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 36 months

Progression-Free Survival (PFS) per Response Evaluation Criteria according to RECIST 1.1, as Determined by investigators
From the first dose until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 36 months
OS
Time Frame: From the first dose until date of death from any cause, assessed up to 36 months

Overall Survival
From the first dose until date of death from any cause, assessed up to 36 months
Phase II: Incidence and Severity of AE and SAE
Time Frame: From the first dose until 30 days after the last dose, assessed up to 36 months

Incidence and Severity of AE and SAE，Assessed according to CTCAE 6.0
From the first dose until 30 days after the last dose, assessed up to 36 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Genfleet Therapeutics (Shanghai) Inc.

Investigators

  • Principal Investigator: Ziming Li, MD, Shanghai Chest Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

November 1, 2026

Primary Completion (Estimated)

December 1, 2027

Study Completion (Estimated)

December 1, 2028

Study Registration Dates

First Submitted

September 22, 2026

First Submitted That Met QC Criteria

September 22, 2026

First Posted (Actual)

September 29, 2026

Study Record Updates

Last Update Posted (Actual)

September 29, 2026

Last Update Submitted That Met QC Criteria

September 22, 2026

Last Verified

September 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • GFH276X1203

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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