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Trilaciclib, a CDK 4/6 Inhibitor, in Patients Receiving Docetaxel for Metastatic Non-Small Cell Lung Cancer (NSCLC) (PRESERVE 4)

A Phase 2 Randomized, Double-blind, Clinical Trial of Trilaciclib Versus Placebo in Patients With Metastatic Non-Small Cell Lung Cancer (NSCLC) Treated With Docetaxel in the 2nd/3rd Line Setting (PRESERVE 4)

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04863248
Acronym
PRESERVE 4
Enrollment
10
Registered
2021-04-28
Start date
2021-04-30
Completion date
2022-02-02
Last updated
2023-04-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Lung Cancer, Metastatic Non-Small Cell Lung Cancer, NSCLC

Keywords

Trilaciclib, Lung Cancer, Non-Small Cell Lung Cancer, PRESERVE 4, CDK 4/6 Inhibitor, cyclin-dependent kinase 4/6 inhibitor, Preserve, NSCLC, solid tumors, chemotherapy, metastatic, myeloprotection, advanced, stage 4, lung, docetaxel, COSELA, G1T28

Brief summary

This is a randomized, double-blind, placebo-controlled, global, multicenter, Phase 2 trial evaluating the effect of trilaciclib on overall survival when administered prior to docetaxel in patients with metastatic NSCLC treated in the 2nd or 3rd line setting.

Detailed description

Patients must have documented disease progression during or after one or two lines of systemic therapy for recurrent or metastatic NSCLC. Prior treatment must have included, either in the same line or as separate lines of therapy: 1) a maximum of 1 line of platinum-containing chemotherapy for recurrent/metastatic disease and 2) a maximum of 1 line of a locally approved/authorized programmed cell death protein 1 (PD-1)/programmed death-ligand 1 (PD-L1) monoclonal antibody (mAb) containing regimen for recurrent/metastatic disease. Patients will be randomly assigned (1:1) to receive trilaciclib or placebo intravenously (IV) prior to docetaxel on Day 1 of each 21-day cycle. The study will include a screening phase, a treatment phase and a survival follow-up phase. The patient may continue to receive treatment on study until disease progression, unacceptable toxicity, withdrawal of consent, discontinuation by Investigator, or the end of the trial, whichever occurs first. This study was terminated by the Sponsor for non-safety reasons. At the time of study termination, 10 patients had been screened, 7 were randomized, and 2 of the 7 had discontinued from the study. In addition, it was decided that there would be no statistical analyses of the efficacy or safety data due to the limited number of patients treated (N=7).

Interventions

DRUGTrilaciclib

Trilaciclib administered IV over 30 minutes prior to docetaxel IV on Day 1 of each 21-day cycle.

DRUGPlacebo

Placebo administered IV over 30 minutes prior to docetaxel IV on Day 1 of each 21-day cycle.

DRUGDocetaxel

Docetaxel administered IV on Day 1 of each 21-day cycle.

Sponsors

G1 Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age ≥18 years of age at the time of signing the informed consent. * Histologically or cytologically confirmed metastatic NSCLC (squamous or nonsquamous) with no known actionable driver mutations (eg, EGFR, ROS1, ALK). 1. Patients must have had documented disease progression during or after 1 or 2 lines of systemic treatment for recurrent or metastatic disease. 2. Two components of treatment must have been received in the same line or as separate lines of therapy: (i) a maximum of 1 line of platinum-containing chemotherapy regimen for recurrent/metastatic disease, and (ii) a maximum of 1 line of a locally approved/authorized PD-1/PD-L1 mAb containing regimen for recurrent/metastatic disease. 3. Maintenance therapy following platinum doublet-based chemotherapy is not considered as a separate line of therapy. Maintenance therapy is defined as therapy given within 42 days after the last dose of platinum-based chemotherapy in patients with ongoing clinical benefit (complete response \[CR\], partial response \[PR\] or stable disease \[SD\]). * Measurable or non-measurable disease per RECIST v1.1. * Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 to 2. * A formalin-fixed paraffin-embedded (FFPE) tumor specimen (from archival or fresh biopsy) with an associated pathology report documenting NSCLC must be available to send to the Sponsor, within the specified timeframe, for planned retrospective biomarker analyses. * Adequate organ function defined by the normal laboratory values.

Exclusion criteria

* Prior therapy with docetaxel. * Any contraindication to the administration of docetaxel at the discretion of the investigator. * Mixed NSCLC/SCLC, or lung tumors whose predominant histology is sarcomatoid, or neuroendocrine. * Any chemotherapy, immunotherapy, biologic, investigational, or hormonal therapy for cancer treatment (except for adjuvant hormonal therapy for breast cancer or prostate cancer defined as M0 disease or prostate-specific antigen (PSA) persistence/recurrence without metastatic disease) within 3 weeks prior to the first dose of trilaciclib/placebo. * Any radiotherapy within 2 weeks prior to the first dose of trilaciclib/placebo. * Presence of central nervous system (CNS) metastases requiring immediate treatment with radiation therapy or steroids (i.e., patient must be off steroids administered for brain metastases for at least 14 days prior to the first dose of trilaciclib/placebo). * Presence of leptomeningeal disease. * Significant third-space fluid retention (eg, ascites or pleural effusion) not amenable to required repeat drainage. * QT corrected using Fridericia's formula (QTcF) interval \>480 msec at screening (confirmed on repeat). For patients with ventricular pacemakers, QTcF \>500 msec. * Symptomatic peripheral neuropathy. * History of interstitial lung disease (ILD). * Prior allogeneic or autologous hematopoietic stem cell or bone marrow transplantation.

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Treatment-Emergent Adverse Events as Assessed by CTCAE v5.0Time from date of first dose of trilaciclib/placebo and docetaxel through 30 days following the last dose of trilaciclib/placebo and docetaxel, assessed up to 9 months and 2 days.To assess the effects of trilaciclib administered prior to docetaxel compared with placebo administered prior to docetaxel on occurrence and severity of adverse events (AEs) by National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 5, study treatment discontinuation due to adverse events (AEs), and trilaciclib adverse events of special interest (AESI) in patients with metastatic NSCLC receiving docetaxel in the second or third line.

Countries

United States

Participant flow

Recruitment details

Due to the rapidly evolving treatment landscape for patients with metastatic NSCLC, G1 Therapeutics announced the decision to terminate this study on 03 November 2021. This study was not terminated for reasons related to safety. At the time of study termination, 10 patients had been screened, 7 were randomized, and 2 of the 7 had already discontinued from the study.

Pre-assignment details

Of the 10 patients enrolled, 3 were screen failures and 7 patients were randomized to treatment.

Participants by arm

ArmCount
Trilaciclib + Docetaxel
Patients will receive trilaciclib administered IV no more than 4 hours prior to docetaxel administered IV on Day 1 of each 21-day cycle. Trilaciclib: Trilaciclib administered IV over 30 minutes prior to docetaxel IV on Day 1 of each 21-day cycle. Docetaxel: Docetaxel administered IV on Day 1 of each 21-day cycle.
4
Placebo + Docetaxel
Patients will receive placebo administered IV no more than 4 hours prior to docetaxel administered IV on Day 1 of each 21-day cycle. Placebo: Placebo administered IV over 30 minutes prior to docetaxel IV on Day 1 of each 21-day cycle. Docetaxel: Docetaxel administered IV on Day 1 of each 21-day cycle.
3
Total7

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath01
Overall StudySponsor Terminated41
Overall StudyWithdrawal by Subject01

Baseline characteristics

CharacteristicTrilaciclib + DocetaxelPlacebo + DocetaxelTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
1 Participants1 Participants2 Participants
Age, Categorical
Between 18 and 65 years
3 Participants2 Participants5 Participants
Age, Continuous58.3 years
STANDARD_DEVIATION 11.47
62.7 years
STANDARD_DEVIATION 2.52
60.1 years
STANDARD_DEVIATION 8.57
ECOG Score
0
1 Participants1 Participants2 Participants
ECOG Score
1
2 Participants2 Participants4 Participants
ECOG Score
2
1 Participants0 Participants1 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants1 Participants2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
3 Participants2 Participants5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Histopathologic Type
Adenocarcinoma
3 Participants2 Participants5 Participants
Histopathologic Type
Squamous Cell Carcinoma
1 Participants1 Participants2 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
2 Participants1 Participants3 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
2 Participants2 Participants4 Participants
Sex: Female, Male
Female
2 Participants1 Participants3 Participants
Sex: Female, Male
Male
2 Participants2 Participants4 Participants
Stage at Diagnosis
IV
4 Participants3 Participants7 Participants
Stage at Diagnosis
Unknown
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 41 / 3
other
Total, other adverse events
4 / 43 / 3
serious
Total, serious adverse events
1 / 43 / 3

Outcome results

Primary

Incidence of Treatment-Emergent Adverse Events as Assessed by CTCAE v5.0

To assess the effects of trilaciclib administered prior to docetaxel compared with placebo administered prior to docetaxel on occurrence and severity of adverse events (AEs) by National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 5, study treatment discontinuation due to adverse events (AEs), and trilaciclib adverse events of special interest (AESI) in patients with metastatic NSCLC receiving docetaxel in the second or third line.

Time frame: Time from date of first dose of trilaciclib/placebo and docetaxel through 30 days following the last dose of trilaciclib/placebo and docetaxel, assessed up to 9 months and 2 days.

Population: This study was terminated by the Sponsor for non-safety reasons. At the time of study termination, 10 patients had been screened, 7 were randomized, and 2 of the 7 had discontinued from the study. In addition, it was decided that there would be no statistical analyses of the efficacy or safety data due to the limited number of patients treated (N=7).

ArmMeasureGroupValue (NUMBER)
Trilaciclib + DocetaxelIncidence of Treatment-Emergent Adverse Events as Assessed by CTCAE v5.0Any AE of Grade >= 32 participants
Trilaciclib + DocetaxelIncidence of Treatment-Emergent Adverse Events as Assessed by CTCAE v5.0Any AE of Grade >= 40 participants
Trilaciclib + DocetaxelIncidence of Treatment-Emergent Adverse Events as Assessed by CTCAE v5.0Any AE4 participants
Placebo + DocetaxelIncidence of Treatment-Emergent Adverse Events as Assessed by CTCAE v5.0Any AE3 participants
Placebo + DocetaxelIncidence of Treatment-Emergent Adverse Events as Assessed by CTCAE v5.0Any AE of Grade >= 33 participants
Placebo + DocetaxelIncidence of Treatment-Emergent Adverse Events as Assessed by CTCAE v5.0Any AE of Grade >= 43 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026