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Completed Phase 1Phase 2 Interventional Results available

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

ClinicalTrials.gov ID: NCT03455829

Public ClinicalTrials.gov record NCT03455829. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 25, 2026, 9:31 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Phase 1b/2 Safety, Pharmacokinetic, and Efficacy Study of G1T38 in Combination With Osimertinib in Patients With EGFR Mutation-Positive Metastatic Non-Small Cell Lung Cancer (NSCLC)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

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.

Study identification

NCT ID
NCT03455829
Recruitment status
Completed
Study type
Interventional
Phase
Phase 1, Phase 2
Lead sponsor
G1 Therapeutics, Inc.
Industry
Enrollment
30 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Mar 28, 2018
Primary completion
Dec 13, 2021
Completion
Feb 13, 2022
Last update posted
May 5, 2023

2018 – 2022

United States locations

U.S. sites
8
U.S. states
5
U.S. cities
8
Facility City State ZIP Site status
Beverly Hills Cancer Center Beverly Hills California 90211 —
UCLA Medical Center, Division of Hematology/Oncology/Clinical Research Unit Santa Monica California 90404 —
St Joseph Heritage Healthcare Santa Rosa California 95403 —
Sylvester Comprehensive Cancer Center/University of Miami Miller School of Medicine Fox Building, Suite 200 G Miami Florida 33136 —
Mofitt Cancer Center Tampa Florida 33612 —
Univ. of Michigan Hospitals Ann Arbor Michigan 48109 —
Virginia Cancer Specialists Fairfax Virginia 22301 —
Froedtert Hospital & the Medical College of Wisconsin Milwaukee Wisconsin 53226 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03455829, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 5, 2023 · Synced Sep 25, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03455829 live on ClinicalTrials.gov.

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