CompletedPhase 1 / Phase 2NCT03455829
Official study title

G1T38, a CDK 4/6 Inhibitor, in Combination With Osimertinib in EGFR-Mutant Non-Small Cell Lung Cancer

Study summary

This was a study to investigate the potential clinical benefit of G1T38 as an oral therapy in combination with osimertinib in patients with EGFR mutation-positive metastatic non-small cell lung cancer. The study was an open-label design, planned to consist of 2 parts: a safety, pharmacokinetic, and dose-finding portion (Part 1), and a randomized portion (Part 2). Both parts were to include 3 study phases: Screening Phase, Treatment Phase, and Survival Follow-up Phase. The Treatment Phase began on the day of first dose with study treatment and completes at the Post-Treatment Visit. Approximately, 144 patients were planned to be enrolled in the study.

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Key things to know

Main goalTreatment

This describes the study’s primary purpose.

What is being studiedG1T38 and Osimertinib

The study team can explain what participation involves.

Who it may be forNon-small cell lung cancer (NSCLC) · EGFR · Metastatic or stage IV

These are broad labels—not an eligibility decision.

Checked against the public recordLast updated May 6, 2023 · Source: ClinicalTrials.gov

Is enrollment open?Completed

Ask the study team to confirm whether enrollment is open.

What kind of study?Phase 1 / Phase 2

Interventional

Where is it offered?8 U.S. locations

Locations may change over time.

Who runs it?G1 Therapeutics, Inc.

Study sponsor

01
Study overview

What this study is about

Purpose
Treatment
Study type
Interventional
Phase
Phase 1 / Phase 2
Sponsor
G1 Therapeutics, Inc.
Interventions being studied
Drug: G1T38; Drug: Osimertinib
02
Explore related studies

How this study is categorized

These labels come from structured fields and exact terms in the public record.

03
Public criteria

Who may be able to participate

The sponsor separates these requirements into two groups. You do not need to interpret them alone—use them to guide a conversation with the study team.

Requirements people may need to meetInclusion criteria
  • Confirmed EGFR mutation for non-small cell lung cancer associated with EGFR TKI sensitivity
  • For Part 2, EGFR T790M mutation-positive tumor status
  • Left ventricular ejection fraction (LVEF) ≥ institution's lower limit of the reference range
  • For Part 1, evaluable or measurable disease as defined by RECIST, Version 1.1
  • For Part 2, measurable disease as defined by RECIST, Version 1.1
  • ECOG performance status 0 to 1
  • Adequate organ function
Reasons someone may not be able to joinExclusion criteria
  • Prior treatment with EGFR TKI within 9 days of first study dose
  • For Part 1, prior treatment with more than 2 prior lines of chemotherapy for advanced NSCLC
  • For Part 2, prior treatment with osimertinib or other T790M active EGFR TKI
  • For Part 2, prior chemotherapy for advanced NSCLC
  • Active uncontrolled/symptomatic CNS metastases, carcinomatous meningitis, or leptomeningeal disease
  • Investigational drug within 3 months or 5 half-lives, whichever is longer, of first study dose
  • Concurrent radiotherapy, radiotherapy within 28 days of first study dose, previous radiotherapy to the target lesion sites, or prior radiotherapy to \> 25% of bone marrow
  • Prior hematopoietic stem cell or bone marrow transplantation

Important: This is the sponsor’s public criteria, not a determination of eligibility. The study team must review your individual situation.

04
Study sites

U.S. locations

  • Beverly Hills Cancer CenterBeverly Hills, California
  • UCLA Medical Center, Division of Hematology/Oncology/Clinical Research UnitSanta Monica, California
  • St Joseph Heritage HealthcareSanta Rosa, California
  • Sylvester Comprehensive Cancer Center/University of Miami Miller School of Medicine Fox Building, Suite 200 GMiami, Florida
  • Mofitt Cancer CenterTampa, Florida
  • Univ. of Michigan HospitalsAnn Arbor, Michigan
  • Virginia Cancer SpecialistsFairfax, Virginia
  • Froedtert Hospital & the Medical College of WisconsinMilwaukee, Wisconsin

Source and freshness
Processed from ClinicalTrials.gov. Last public update: May 6, 2023. Always confirm current availability with the study team.

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