- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02873975
A Study of LY2606368 (Prexasertib) in Patients With Solid Tumors With Replicative Stress or Homologous Repair Deficiency
A Phase II Study of the CHK1 Inhibitor LY2606368 in Patients With Advanced Solid Tumors Exhibiting Replicative Stress or Homologous Recombination Repair Deficiency
Study Overview
Detailed Description
This is an open label, phase II, two-arm study exploring the anti-tumor activity of the CHK1 inhibitor prexasertib (LY2606368) in patients with advanced solid tumors exhibiting one of the following:
- Replicative stress, including MYC amplification, CCNE1 amplification, Rb loss, or an FBXW7 mutation
- An HR deficiency, including tumors with genomic or somatic mutations of BRCA1, BRCA2, PALB2, RAD51C, RAD51D, ATR, ATM, CHK2, or the Fanconi anemia pathway genes
- A CCNE1 amplification
Study Type
Enrollment (Actual)
Phase
- Phase 2
Contacts and Locations
Study Locations
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Massachusetts
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Boston, Massachusetts, United States, 02115
- Dana Farber Cancer Institute
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Participants must have a pathologically confirmed advanced solid tumor for which standard therapy proven to provide clinical benefit does not exist or is no longer effective.
Participants must have one of the following (confirmed via targeted NextGeneration sequencing [NGS] using the DFCI/BWH OncoPanel or another CLIA-certified method):
- For the replicative stress cohort: MYC amplification, CCNE1 amplification, Rb loss, FBXW7 mutation, or another genomic abnormality indicative of replicative stress as agreed upon with the principal investigator. OR
- For the HR deficiency cohort: genomic or somatic mutation in BRCA1, BRCA2, PALB2, RAD51C, RAD51D, ATR, ATM, CHK2, the Fanconi anemia pathway genes, or another genomic or somatic mutation in a known HR gene as agreed upon with the principal investigator.
- For the CCNE1 cohort: CCNE1 amplification of 6-fold or greater. Patients with borderline amplification levels may be considered following approval from the overall principal investigator.
- Participants must have measurable disease, defined as at least one lesion that can be accurately measured in at least one dimension (longest diameter to be recorded for non-nodal lesions and short axis for nodal lesions) as ≥ 20 mm with conventional techniques or as ≥ 10 mm with spiral CT scan, MRI, or calipers by clinical exam.
- Age ≥ 18 years.
- ECOG performance status < 2
Participants must have adequate organ and marrow function as defined below:
- Absolute neutrophil count ≥ 1.5 K/uL
- Platelet count ≥ 100 K/uL
- Hemoglobin ≥ 9 g/dL (with or without transfusion support)
- Total bilirubin ≤ 1.5 × institutional upper limit of normal (ULN)
- AST(SGOT)/ALT(SGPT) ≤ 2.5 × institutional ULN, unless liver metastases are present and then ≤ 5 × institutional ULN is acceptable
- Serum creatinine ≤ 1.5 × institutional ULN
- Participants enrolling to the HR or replicative stress cohorts during Stage 1 must have disease that is amenable to biopsy and be willing to undergo a pre-treatment tumor biopsy.
- The potential effects of LY2606368 use during pregnancy and lactation are not known. Nonclinical studies of LY2606368 on pregnancy and fetal development have not been performed. To minimize any potential risks, men and women with reproductive potential should use medically approved contraceptive precautions during treatment and for 3 months following the last dose of LY2606368. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. Men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of study participation, and for 3 months after completion of LY2606368 administration.
- Ability to understand and the willingness to sign a written informed consent document.
- QTcF value of ≤ 470 msec on screening electrocardiogram (EKG)
Exclusion Criteria:
- Participants who have had chemotherapy, other investigational or biologic therapy, major surgery, or radiotherapy within 3 weeks (6 weeks for nitrosoureas or mitomycin C) prior to the planned first dose of LY2606368 therapy.
- Participants who have not recovered to eligibility levels from prior toxicity or adverse events as a result of previous treatment prior to the study.
- Participants who have received prior treatment with a CHK1 inhibitor.
- Participants who have received prior radiation therapy to > 25% of the bone marrow.
- Participants with known untreated brain metastases should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events. Participants with a history of brain metastases that have been treated, are no longer taking corticosteroids, and have been stable on imaging for at least one month following the end of treatment are permitted.
- History of allergic reactions attributed to compounds of similar chemical or biologic composition to LY2606368.
- Participants with a personal or family history of long QT syndrome.
- Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, NYHA Class III/IV heart failure, unstable angina pectoris, cardiac arrhythmia, myocardial infarction within 3 months of enrollment, or psychiatric illness/social situations that would limit compliance with study requirements.
- Pregnant or breastfeeding females. The potential effects of LY2606368 use during pregnancy and breastfeeding are not known and LY2606368 has the potential for teratogenic or abortifacient effects.
- Known HIV-positive participants are ineligible because these participants are at increased risk of lethal infections when treated with marrow-suppressive therapy. Appropriate studies will be undertaken in HIV-positive participants when indicated.
- Participants enrolling to the HR or replicative stress cohort during Stage 1 may not be on anticoagulant therapy unless the treating investigator has deemed it safe to temporarily hold to facilitate the pre-treatment tumor biopsy.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: Homologous Repair (HR) Deficiency Cohort
Prexasertib (LY2606368) will be administered as an IV infusion in patients with homologous repair (HR) deficiency on day 1 and day 15 of every 28 day cycle.
Prexasertib will be given at the recommended phase 2 dose of 105 mg/m2 administered over approximately 1 hour.
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Other Names:
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Experimental: Replicative Stress Cohort
Prexasertib (LY2606368) will be administered as an IV infusion in patients with advanced solid tumors exhibiting replicative stress on day 1 and day 15 of every 28 day cycle.
Prexasertib will be given at the recommended phase 2 dose of 105 mg/m2 administered over approximately 1 hour.
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Other Names:
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Experimental: CCNE1 Amplification Cohort
Prexasertib (LY2606368) will be administered as an IV infusion in patients with CCNE1 amplification on day 1 and day 15 of every 28 day cycle.
Prexasertib will be given at the recommended phase 2 dose of 105 mg/m2 administered over approximately 1 hour.
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Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Progression-Free Rate at 4 Month
Time Frame: at 4 month
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Progression-Free Rate defines as the percentage of participants progression-free at 4 months in all arms, by RECIST 1.1 criteria.
Progression-free rate will be estimated as binomial proportion and overall survival and progression-free survival estimates and curves will be generated using the Kaplan-Meier method.
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at 4 month
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Incidence of Grade 4 Treatment-Related Toxicity
Time Frame: Assessed cycle 1 at day 1, 8, 15 and 22, and cycle 2 at day 1 and 15, from time of first dose and up to day 30 post-treatment. Median treatment duration for this study cohort was 55 day (range 6 - 539 days).
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All grade 4 adverse events (AE) with treatment attribution of possibly, probably or definite based on CTCAEvE as reported on case report forms were counted.
Incidence is the number of patients experiencing at least one treatment-related grade 4 AE of any type during the time of observation.
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Assessed cycle 1 at day 1, 8, 15 and 22, and cycle 2 at day 1 and 15, from time of first dose and up to day 30 post-treatment. Median treatment duration for this study cohort was 55 day (range 6 - 539 days).
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Objective Response Rate
Time Frame: Disease was evaluated radiologically at baseline and on treatment; Treatment continued until disease progression or unacceptable toxicity. Median treatment duration for this study cohort was 55 day (range 6 - 539 days).
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The objective response rate (ORR) was defined as the proportion of participants achieving complete response (CR) or partial response (PR) based on RECIST 1.1 criteria on treatment.
Per RECIST 1.1 for target lesions: CR is complete disappearance of all target lesions and PR is at least a 30% decrease in the sum of longest diameter (LD) of target lesions, taking as reference baseline sum LD.
PR or better overall response assumes at a minimum incomplete response/stable disease (SD) for the evaluation of non-target lesions and absence of new lesions.
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Disease was evaluated radiologically at baseline and on treatment; Treatment continued until disease progression or unacceptable toxicity. Median treatment duration for this study cohort was 55 day (range 6 - 539 days).
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Median Overall Survival (OS)
Time Frame: Participants were followed long-term for survival months from the end of treatment until death or lost to follow-up. Median (range) follow-up was 133 days (15-862 days) in this study cohort.
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OS based on the Kaplan-Meier method is defined as the time from study entry to death or censored at date last known alive.
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Participants were followed long-term for survival months from the end of treatment until death or lost to follow-up. Median (range) follow-up was 133 days (15-862 days) in this study cohort.
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Geoffrey Shapiro, MD, PhD, Dana-Farber Cancer Institute
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Other Study ID Numbers
- 16-281
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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