MedPath

A Study of Prexasertib (LY2606368) in Platinum-Resistant or Refractory Recurrent Ovarian Cancer

Phase 2
Completed
Conditions
Ovarian Cancer
Interventions
Registration Number
NCT03414047
Lead Sponsor
Eli Lilly and Company
Brief Summary

The purpose of this study is to evaluate the efficacy and safety of prexasertib in women with platinum-resistant or refractory recurrent ovarian cancer.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
Female
Target Recruitment
172
Inclusion Criteria
  • Women who have high-grade serous ovarian, primary peritoneal or fallopian tube cancer.
  • Cohorts 1 to 3: Have platinum-resistant disease and have documented test results assessing alterations in the BRCA1 and BRCA2 genes prior to receiving study treatment.
  • Cohort 1: Are BRCA negative and have received 3 or more prior lines of therapy.
  • Cohort 2: Are BRCA negative and have received less than 3 prior lines of therapy.
  • Cohort 3: Are BRCA positive and have previously received a PARP.
  • Cohort 4: Have primary platinum refractory disease.
  • Have adequate organ function.
  • Must be able and willing to undergo mandatory tumor biopsy.
Exclusion Criteria
  • Cohorts 1-3: Have previously received all of the following agents at any time in the platinum-resistant setting: gemcitabine, pegylated liposomal doxorubicin, and paclitaxel.

  • Have known central nervous system malignancy or metastasis.

  • Have previously participated in any study involving a checkpoint kinase 1 inhibitor or have hypersensitivity to the study drug or excipients.

  • Have at least one of the following:

    • history of abdominal fistula or gastrointestinal perforation
    • intra-abdominal abscess within last 3 months prior to the first dose of study drug
    • a radiographically confirmed bowel obstruction within 3 months prior to the first dose of study drug
  • Have a symptomatic human immunodeficiency virus infection or symptomatic activated/reactivated hepatitis A, B, or C (screening is not required).

  • Have a serious cardiac condition.

  • Have a history of prior radiotherapy to the whole pelvis.

  • Have chronic daily treatment with corticosteroids, excluding inhaled or topical steroids.

  • Have known factors that may increase the risk of infection while on study drug treatment. These may include, but are not limited to, an indwelling peritoneal catheter or open wounds. Catheters for vascular access are permitted.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Prexasertib Cohort 1PrexasertibParticipants received 105 milligram per square meter (mg/m²) prexasertib as an approximately 60 (+10) minute IV infusion on Day 1 and 15 of a 28-day cycle. Participants were with platinum-resistant disease, breast cancer susceptibility gene (BRCA) negative and have received ≥3 lines of prior therapy.
Prexasertib Cohort 2PrexasertibParticipants received 105 mg/m² prexasertib as an approximately 60 (+10) minute IV infusion on Day 1 and 15 of a 28-day cycle. Participants were with platinum-resistant disease, BRCA negative and have received \<3 lines of prior therapy.
Prexasertib Cohort 3PrexasertibParticipants received 105 mg/m² prexasertib as an approximately 60 (+10) minute IV infusion on Day 1 and 15 of a 28-day cycle. Participants were with platinum-resistant disease, BRCA positive and received a prior poly ADP ribose polymerase (PARP) inhibitor.
Prexasertib Cohort 4PrexasertibParticipants received 105 mg/m² prexasertib as an approximately 60 (+10) minute IV infusion on Day 1 and 15 of a 28-day cycle. Participants were with platinum refractory disease, BRCA positive or negative, no restriction on number of lines of prior therapy.
Primary Outcome Measures
NameTimeMethod
Percentage of Participants Who Achieve Complete Response (CR) or Partial Response (PR): Overall Response Rate (ORR)Baseline through Disease Progression (Up to 6 months)

Overall response rate is the best response of complete response (CR) or partial response (PR) as classified by the independent central review according to the Response Evaluation Criteria In Solid Tumors (RECIST v1.1). CR is a disappearance of all target and non-target lesions and normalization of tumor marker level. PR is an at least 30% decrease in the sum of the diameters of target lesions (taking as reference the baseline sum diameter) without progression of non-target lesions or appearance of new lesions. Overall response rate is calculated as a total number of participants with CR or PR divided by the total number of participants per cohort with at least 1 measurable lesion, multiplied by 100.

Secondary Outcome Measures
NameTimeMethod
Pharmacokinetics (PK): Maximum Plasma Concentration (Cmax) of PrexasertibCycle 1, Cycle 2, Cycle 4, Cycle 6 (Day 1 (End of prexasertib infusion (+15 min), 1-2 hours following end of prexasertib infusion), Cycle 2, day 1(Prior to start of prexasertib infusion)

Pharmacokinetics(PK): Maximum Plasma Concentration of Prexasertib. The same dose was administered to Cohort 1, 2, 3 and 4 and were combined for analysis.

Disease Control Rate (DCR): Percentage of Participants With a Best Overall Response of CR, PR, or Stable Disease (SD) for at Least 4 MonthsBaseline through Disease Progression (up to 6 months)

DCR is defined as the number of participants who achieve a best overall response of CR, PR or SD for ≥4 months as determined by per RECIST version 1.1. CR is the disappearance of all target and non-target lesions; PR is a ≥30% decrease in sum of longest diameter of target lesions without new lesion and progression of non-target lesion; SD is neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease. Disease control rate is calculated as a total number of participants with CR or PR or SD divided by the total number of participants treated, then multiplied by 100.

Duration of ResponseDate of CR or PR to Date of Disease Progression or Death Due to Any Cause (up to 20 months)

Duration of response is defined as the time from the date measurement criteria for CR or PR (whichever is first recorded) are first met until the first date that disease is recurrent or objective progression is observed, per RECIST 1.1, or the date of death from any cause in the absence of objectively determined disease progression or recurrence. Participants known to be alive and without disease progression will be censored at the time of the last adequate tumor assessment.

Percentage of Participants With at Least a 50% Reduction in CA-125 Levels From BaselineBaseline, 4 Weeks

CA-125 response is defined as ≥50% reduction in CA-125 levels from a pretreatment sample. The response must be confirmed and maintained for ≥28 days according to GCIG criteria. Participants must have a pretreatment sample that is ≥2 times the upper limit of the reference range and obtained within 2 weeks before starting the treatment.

Progression-Free SurvivalBaseline to Disease Progression or Death from any Cause (Up to 22 months)

Progression-Free Survival (PFS) is defined as the time from the date of enrollment until the first occurrence of documented disease progression per RECIST 1.1, or death from any cause in the absence of progressive disease (PD). Participants known to be alive and without disease progression will be censored at the time of the last adequate tumor assessment.

Overall SurvivalBaseline to Date of Death from Any Cause (Up to 26 months)

Overall survival (OS) is defined as the time from the date of enrollment until death from any cause. If the participant is alive, lost to follow-up or withdrawn from study at the time of data analysis, OS data will be censored on the last date the participant is known to be alive.

Trial Locations

Locations (46)

Kaiser Permanente Medical Center

🇺🇸

Vallejo, California, United States

Royal Surrey County Hospital

🇬🇧

Guildford, Surrey, United Kingdom

University of Southern Florida School of Medicine

🇺🇸

Gainesville, Florida, United States

Hospital Universitario 12 de Octubre

🇪🇸

Madrid, Spain

Hospital Universitario La Paz

🇪🇸

Madrid, Spain

Royal Marsden Hospital

🇬🇧

Sutton, Surrey, United Kingdom

Northampton General Hospital

🇬🇧

Northampton, United Kingdom

Severance Hospital Yonsei University Health System

🇰🇷

Seoul, Korea, Republic of

Institut Jules Bordet

🇧🇪

Brussel, Belgium

Hospital Universitario Ramon y Cajal

🇪🇸

Madrid, Spain

University College Hospital - London

🇬🇧

London, Greater London, United Kingdom

Hospital Reina Sofia

🇪🇸

Cordoba, Spain

GZA St Augustinus

🇧🇪

Wilrijk, Belgium

Hospital Universitari Vall d'Hebron

🇪🇸

Barcelona, Spain

Sarah Cannon Research Institute SCRI

🇺🇸

Nashville, Tennessee, United States

Tennessee Oncology PLLC

🇺🇸

Nashville, Tennessee, United States

Seattle Cancer Care Alliance

🇺🇸

Seattle, Washington, United States

University of Tennessee Medical Center

🇺🇸

Knoxville, Tennessee, United States

Dana Farber Cancer Institute

🇺🇸

Boston, Massachusetts, United States

Policlinico Univ. Agostino Gemelli

🇮🇹

Roma, Lazio, Italy

Istituto Tumori Fondazione G. Pascale IRCCS

🇮🇹

Napoli, Naples, Italy

Mount Vernon Hospital

🇬🇧

Northwood, Middlesex, United Kingdom

Christie NHS Foundation Trust

🇬🇧

Manchester, Greater Manchester, United Kingdom

Arizona Oncology Associates, P.C.

🇺🇸

Tucson, Arizona, United States

Sioux Valley Clinic

🇺🇸

Sioux Falls, South Dakota, United States

Research Medical Center

🇺🇸

Kansas City, Missouri, United States

Cancer Care Associates

🇺🇸

Tulsa, Oklahoma, United States

Prince of Wales Hospital

🇦🇺

Randwick, New South Wales, Australia

Mater Adult Hospital Brisbane

🇦🇺

South Brisbane, Queensland, Australia

Westmead Hospital

🇦🇺

Wentworthville, New South Wales, Australia

Royal Brisbane and Womens Hospital

🇦🇺

Herston, Queensland, Australia

Concord Repatriation General Hospital

🇦🇺

Concord, New South Wales, Australia

Flinders Medical Centre

🇦🇺

Bedford Park, South Australia, Australia

Burnside War Memorial Hospital

🇦🇺

Toorak Gardens, South Australia, Australia

Peter MacCallum Cancer Centre

🇦🇺

Melbourne, Victoria, Australia

Shaare Zedek Medical Center

🇮🇱

Jerusalem, Israel

Universitaire Ziekenhuizen Leuven - Campus Gasthuisberg

🇧🇪

Leuven, Belgium

Rambam Medical Center

🇮🇱

Haifa, Israel

Istituto Europeo di Oncologia

🇮🇹

Milano, Milan, Italy

Sheba Medical Center

🇮🇱

Ramat Gan, Israel

Samsung Medical Center

🇰🇷

Seoul, Korea, Korea, Republic of

Asan Medical Center

🇰🇷

Seoul, Korea, Republic of

Seoul National University Hospital

🇰🇷

Seoul, Korea, Republic of

Dartmouth Hitchcock Medical Center

🇺🇸

Lebanon, New Hampshire, United States

Thomas Jefferson University

🇺🇸

Philadelphia, Pennsylvania, United States

Rhode Island Hospital

🇺🇸

Providence, Rhode Island, United States

© Copyright 2025. All Rights Reserved by MedPath