ArticleThe Lancet. Oncology2018
Prexasertib, a cell cycle checkpoint kinase 1 and 2 inhibitor, in BRCA wild-type recurrent high-grade serous ovarian cancer: a first-in-class proof-of-concept phase 2 study.
Article in The Lancet. Oncology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 141 papers.
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Who cites it
141 citing papers in PubMed, 210 citations in OpenAlex.
- The CHK1 inhibitor prexasertib in BRCA wild-type platinum-resistant recurrent high-grade serous ovarian carcinoma: a phase 2 trial.Nature communications · 2024Trial
- A Phase 1/2 trial of SRA737 (a Chk1 inhibitor) administered orally in patients with advanced cancer.British journal of cancer · 2023Trial
- Trial
- A Phase 2 study of prexasertib (LY2606368) in platinum resistant or refractory recurrent ovarian cancer.Gynecologic oncology · 2022Trial
- A Phase II Single Arm Pilot Study of the CHK1 Inhibitor Prexasertib (LY2606368) in BRCA Wild-Type, Advanced Triple-Negative Breast Cancer.The oncologist · 2020Trial
- Clinical outcomes of prexasertib monotherapy in recurrentJournal for immunotherapy of cancer · 2020Trial
- Sensitivity to ATR-CHK1 pathway inhibition in MDS/AML is enhanced by SRSF2 mutations and reduced by RUNX1 loss.Leukemia · 2026Article
- Ataxia telangiectasia mutated (ATM) kinase as a predictive biomarker in clinical oncology: implications for a precision treatment approach.Neoplasia (New York, N.Y.) · 2026Review
- CHEK1 Expression Correlates with Tumor Progression in Lung Adenocarcinoma but Not in Squamous Cell Carcinoma.Medicina (Kaunas, Lithuania) · 2026Article
- Transcriptional Profiling Reveals Lineage-Specific Characteristics in ATR/CHK1 Inhibitor-Resistant Endometrial Cancer.Biomolecules · 2026Article
- CHK1 and CHK2 as Context-Dependent Rheostats of Genotoxic Stress: Implications for Cell Fate and Tumor Immunity.International journal of biological sciences · 2026Review
- CHK1 as a Metabolic and Immunological Regulator: Implications for Cancer Therapy.Oncology research · 2026Review
- Predicting platinum-resistance in advanced ovarian cancer: defining patient and disease characteristics to improve treatment approaches at initiation of treatment or earlier in the course of the disease.Frontiers in oncology · 2026Article
- Synthetic lethality in cancer therapy: Mechanisms, models and clinical translation for overcoming therapeutic resistance.Clinical and translational medicine · 2026Review
- Targeting DNA repair mechanisms in cancer therapy: the role of small molecule DNA repair inhibitors.NAR cancer · 2025Review
- Combined CHK1 and PD-L1 blockade as a novel therapeutic strategy against stemness and immunosuppression in ovarian cancer.Cancer immunology, immunotherapy : CII · 2025Article
- Genome instability and crosstalk with the immune response.Genome medicine · 2025Review
- YY1-induced USP43 drives ferroptosis suppression by FASN stabilization and subsequent activation of SLC7A11 in ovarian cancer.Cell death & disease · 2025Article
- Cancer Vulnerabilities Through Targeting the ATR/Chk1 and ATM/Chk2 Axes in the Context of DNA Damage.Cells · 2025Review
- Antitumor Activity of Radiation Therapy Combined with Checkpoint Kinase Inhibition in SHH/International journal of molecular sciences · 2025Article
81 more citing papers are in PubMed but not listed here.
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Authors and funding
16 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundHigh-grade serous ovarian carcinoma is characterised by TP53 mutations, DNA repair defects, and genomic instability. We hypothesised that prexasertib (LY2606368), a cell cycle checkpoint kinase 1 and 2 inhibitor, would be active in BRCA wild-type disease.
methodsIn an open-label, single-centre, two-stage, proof-of-concept phase 2 study, we enrolled women aged 18 years or older with measurable, recurrent high-grade serous or high-grade endometrioid ovarian carcinoma. All patients had a negative family history of hereditary breast and ovarian cancer or known BRCA wild-type status, measurable disease according to Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1, Eastern Cooperative Oncology Group performance status score 0-2, and adequate haematological, renal, hepatic, and bone-marrow function. Patients received intravenous prexasertib 105 mg/m
findingsBetween Jan 20, 2015, and Nov 2, 2016, we enrolled 28 women with a median age of 64 years (IQR 58·0-69·5) who had previously received a median of 5·0 (IQR 2·5-5·0) systemic therapies. Most patients (22 [79%]) had platinum-resistant or platinum-refractory disease. All women received at least one dose of prexasertib, but four (14%) of 28 patients were not assessable for RECIST response. Eight (33%, 95% CI 16-55) of 24 patients assessable per protocol had partial responses. In the intention-to-treat population, eight (29%, 95% CI 13-49) of 28 had a partial responses. The most common (in >10% patients) grade 3 or 4 treatment-emergent adverse events were neutropenia in 26 (93%) of 28 patients, reduced white blood cell count in 23 (82%), thrombocytopenia in seven (25%), and anaemia in three (11%). Grade 4 neutropenia was reported in 22 (79%) patients after the first dose of prexasertib and was transient (median duration 6 days [IQR 4-8]) and recovered without growth-factor support in all cases. The treatment-related serious adverse event of grade 3 febrile neutropenia was reported in two (7%) patients. One patient died during the study due to tumour progression.
interpretationPrexasertib showed clinical activity and was tolerable in patients with BRCA wild-type high-grade serous ovarian carcinoma. This drug warrants further development in this setting, especially for patients with platinum-resistant or platinum-refractory disease.
fundingIntramural Research Program of the National Institutes of Health and National Cancer Institute.
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