G1T38, a CDK 4/6 Inhibitor, in Combination With Osimertinib in EGFR-Mutant Non-Small Cell Lung Cancer
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ClinicalTrials.gov Identifier: NCT03455829 |
Recruitment Status :
Completed
First Posted : March 7, 2018
Results First Posted : May 1, 2023
Last Update Posted : May 6, 2023
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Sponsor:
G1 Therapeutics, Inc.
Information provided by (Responsible Party):
G1 Therapeutics, Inc.
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Study Type | Interventional |
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Study Design | Allocation: Non-Randomized; Intervention Model: Parallel Assignment; Masking: None (Open Label); Primary Purpose: Treatment |
Conditions |
Carcinoma, Non-Small-Cell Lung Lung Cancer Non-small Cell Lung Cancer |
Interventions |
Drug: G1T38 Drug: Osimertinib |
Enrollment | 30 |
Participant Flow
Recruitment Details | |
Pre-assignment Details |
Arm/Group Title | Part 1: Cohort 1 Lerociclib at 200 mg QD | Part 1: Cohort 2 Lerociclib at 300 mg QD | Part 1: Cohort 3 Lerociclib at 400 mg QD | Part 1: Cohort 4 Lerociclib at 150 mg BID | Part 1: Cohort 5 Lerociclib at 200 mg BID |
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Part 1: G1T38/Lerociclib at 200 mg once daily (QD) orally + Osimertinib 80 mg once daily (QD) orally | Part 1: G1T38/Lerociclib at 300 mg once daily (QD) orally + Osimertinib 80 mg once daily (QD) orally | Part 1: G1T38/Lerociclib at 400 mg once daily (QD) orally + Osimertinib 80 mg once daily (QD) orally | Part 1: G1T38/Lerociclib at 150 mg twice daily (BID) orally + Osimertinib 80 mg once daily (QD) orally | Part 1: G1T38/Lerociclib at 200 mg twice daily (BID) orally + Osimertinib 80 mg once daily (QD) orally |
Period Title: Overall Study | |||||
Started | 7 | 6 | 4 | 7 | 6 |
Completed | 0 | 0 | 0 | 0 | 0 |
Not Completed | 7 | 6 | 4 | 7 | 6 |
Reason Not Completed | |||||
Death | 2 | 3 | 2 | 4 | 2 |
Study terminated and patients did not have progressive disease or died | 5 | 3 | 2 | 2 | 3 |
Disease progression | 0 | 0 | 0 | 1 | 1 |
Baseline Characteristics
Arm/Group Title | Part 1: Cohort 1 Lerociclib at 200 mg QD | Part 1: Cohort 2 Lerociclib at 300 mg QD | Part 1: Cohort 3 Lerociclib at 400 mg QD | Part 1: Cohort 4 Lerociclib at 150 mg BID | Part 1: Cohort 5 Lerociclib at 200 mg BID | Total | |
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Part 1: G1T38/Lerociclib at 200 mg once daily (QD) orally + Osimertinib 80 mg once daily (QD) orally | Part 1: G1T38/Lerociclib at 300 mg once daily (QD) orally + Osimertinib 80 mg once daily (QD) orally | Part 1: G1T38/Lerociclib at 400 mg once daily (QD) orally + Osimertinib 80 mg once daily (QD) orally | Part 1: G1T38/Lerociclib at 150 mg twice daily (BID) orally + Osimertinib 80 mg once daily (QD) orally | Part 1: G1T38/Lerociclib at 200 mg twice daily (BID) orally + Osimertinib 80 mg once daily (QD) orally | Total of all reporting groups | |
Overall Number of Baseline Participants | 7 | 6 | 4 | 7 | 6 | 30 | |
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All enrolled patients who were administered at least 1 dose of study drug.
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Age, Continuous
Mean (Standard Deviation) Unit of measure: Years |
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Number Analyzed | 7 participants | 6 participants | 4 participants | 7 participants | 6 participants | 30 participants | |
62.71 (11.265) | 62.67 (8.779) | 62.75 (7.805) | 61.43 (15.757) | 66.17 (3.764) | 63.10 (10.118) | ||
Sex: Female, Male
Measure Type: Count of Participants Unit of measure: Participants |
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Number Analyzed | 7 participants | 6 participants | 4 participants | 7 participants | 6 participants | 30 participants | |
Female |
6 85.7%
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3 50.0%
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3 75.0%
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5 71.4%
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4 66.7%
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21 70.0%
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Male |
1 14.3%
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3 50.0%
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1 25.0%
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2 28.6%
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2 33.3%
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9 30.0%
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Ethnicity (NIH/OMB)
Measure Type: Count of Participants Unit of measure: Participants |
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Number Analyzed | 7 participants | 6 participants | 4 participants | 7 participants | 6 participants | 30 participants | |
Hispanic or Latino |
3 42.9%
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0 0.0%
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0 0.0%
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1 14.3%
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0 0.0%
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4 13.3%
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Not Hispanic or Latino |
3 42.9%
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6 100.0%
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3 75.0%
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5 71.4%
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6 100.0%
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23 76.7%
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Unknown or Not Reported |
1 14.3%
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0 0.0%
|
1 25.0%
|
1 14.3%
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0 0.0%
|
3 10.0%
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Race (NIH/OMB)
Measure Type: Count of Participants Unit of measure: Participants |
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Number Analyzed | 7 participants | 6 participants | 4 participants | 7 participants | 6 participants | 30 participants | |
American Indian or Alaska Native |
0 0.0%
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0 0.0%
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0 0.0%
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0 0.0%
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0 0.0%
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0 0.0%
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Asian |
1 14.3%
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1 16.7%
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1 25.0%
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0 0.0%
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1 16.7%
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4 13.3%
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Native Hawaiian or Other Pacific Islander |
0 0.0%
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0 0.0%
|
0 0.0%
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0 0.0%
|
0 0.0%
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0 0.0%
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Black or African American |
0 0.0%
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0 0.0%
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0 0.0%
|
2 28.6%
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1 16.7%
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3 10.0%
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White |
1 14.3%
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5 83.3%
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2 50.0%
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3 42.9%
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4 66.7%
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15 50.0%
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More than one race |
0 0.0%
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0 0.0%
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0 0.0%
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0 0.0%
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0 0.0%
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0 0.0%
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Unknown or Not Reported |
5 71.4%
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0 0.0%
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1 25.0%
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2 28.6%
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0 0.0%
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8 26.7%
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Outcome Measures
Adverse Events
Limitations and Caveats
A limitation of the trial is small numbers of subjects, since only the Phase 1/Part 1 part of the trial was conducted.
A lack of a control group, blinding and randomization also limits the utility of the information, so it is difficult to determine if there is any change in safety or tolerability of the combination of G1T38 + osimertinib from that of osimertinib alone or if there was any selection bias introduced.
More Information
Results Point of Contact
Name/Title: | Clinical Trial Info. |
Organization: | G1 Therapeutics, Inc. |
Phone: | 919-213-9835 |
EMail: | clinicalinfo@g1therapeutics.com |
Responsible Party: | G1 Therapeutics, Inc. |
ClinicalTrials.gov Identifier: | NCT03455829 |
Other Study ID Numbers: |
G1T38-03 2017-004315-39 ( EudraCT Number ) |
First Submitted: | February 28, 2018 |
First Posted: | March 7, 2018 |
Results First Submitted: | December 13, 2022 |
Results First Posted: | May 1, 2023 |
Last Update Posted: | May 6, 2023 |