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Ledermann JA, Shapira-Frommer R, Santin AD, Lisyanskaya AS, Pignata S, Vergote I, Raspagliesi F, Sonke GS, Birrer M, Provencher DM, Sehouli J, Colombo N, González-Martín A, Oaknin A, Ottevanger PB, Rudaitis V, Kobie J, Nebozhyn M, Edmondson M, Sun Y, Cristescu R, Jelinic P, Keefe SM, Matulonis UA. Molecular determinants of clinical outcomes of pembrolizumab in recurrent ovarian cancer: Exploratory analysis of KEYNOTE-100. Gynecol Oncol 2023; 178:119-129. [PMID: 37862791 DOI: 10.1016/j.ygyno.2023.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/15/2023] [Accepted: 09/23/2023] [Indexed: 10/22/2023]
Abstract
OBJECTIVE This prespecified exploratory analysis evaluated the association of gene expression signatures, tumor mutational burden (TMB), and multiplex immunohistochemistry (mIHC) tumor microenvironment-associated cell phenotypes with clinical outcomes of pembrolizumab in advanced recurrent ovarian cancer (ROC) from the phase II KEYNOTE-100 study. METHODS Pembrolizumab-treated patients with evaluable RNA-sequencing (n = 317), whole exome sequencing (n = 293), or select mIHC (n = 125) data were evaluated. The association between outcomes (objective response rate [ORR], progression-free survival [PFS], and overall survival [OS]) and gene expression signatures (T-cell-inflamed gene expression profile [TcellinfGEP] and 10 non-TcellinfGEP signatures), TMB, and prespecified mIHC cell phenotype densities as continuous variables was evaluated using logistic (ORR) and Cox proportional hazards regression (PFS; OS). One-sided p-values were calculated at prespecified α = 0.05 for TcellinfGEP, TMB, and mIHC cell phenotypes and at α = 0.10 for non-TcellinfGEP signatures; all but TcellinfGEP and TMB were adjusted for multiplicity. RESULTS No evidence of associations between ORR and key axes of gene expression was observed. Negative associations were observed between outcomes and TcellinfGEP-adjusted glycolysis (PFS, adjusted-p = 0.019; OS, adjusted-p = 0.085) and hypoxia (PFS, adjusted-p = 0.064) signatures. TMB as a continuous variable was not associated with outcomes (p > 0.05). Positive associations were observed between densities of myeloid cell phenotypes CD11c+ and CD11c+/MHCII-/CD163-/CD68- in the tumor compartment and ORR (adjusted-p = 0.025 and 0.013, respectively). CONCLUSIONS This exploratory analysis in advanced ROC did not find evidence for associations between gene expression signatures and outcomes of pembrolizumab. mIHC analysis suggests CD11c+ and CD11c+/MHCII-/CD163-/CD68- phenotypes representing myeloid cell populations may be associated with improved outcomes with pembrolizumab in advanced ROC. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov, NCT02674061.
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Affiliation(s)
- Jonathan A Ledermann
- Department of Oncology, UCL Cancer Institute, University College London, London, United Kingdom.
| | - Ronnie Shapira-Frommer
- The Ella Lemelbaum Institute for Immuno-Oncology, Sheba Medical Center, Tel HaShomer Hospital, Ramat Gan, Israel
| | - Alessandro D Santin
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University, New Haven, CT, United States
| | - Alla S Lisyanskaya
- Department of Oncogynecology, St. Petersburg City Clinical Oncology Dispensary, St. Petersburg, Russia
| | - Sandro Pignata
- Department of Urology and Gynecology, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy
| | - Ignace Vergote
- Department of Obstetrics and Gynaecology, Division of Gynecologic Oncology, University Hospital Leuven, Leuven, Belgium
| | | | - Gabe S Sonke
- Department of Medical Oncology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Michael Birrer
- UAMS Winthrop P. Rockefeller Cancer Institute, Little Rock, AR, United States
| | - Diane M Provencher
- Centre Hospitalier de l'Université de Montréal (CHUM), Institut du Cancer de Montréal, Montreal, Canada
| | - Jalid Sehouli
- Gynecology with Center of Oncological Surgery, Charité-Medical University of Berlin, Berlin, Germany
| | - Nicoletta Colombo
- Department of Medicine and Surgery, University of Milan-Bicocca, Milan, Italy; European Institute of Oncology, IRCCS, Milan, Italy
| | - Antonio González-Martín
- Department of Medical Oncology and Program in Solid Tumors-Cima, Cancer Center Clínica Universidad de Navarra, Madrid, Spain
| | - Ana Oaknin
- Vall d'Hebron University Hospital, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - P B Ottevanger
- Medical Oncology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Vilius Rudaitis
- Clinic of Obstetrics and Gynecology, Vilnius University Institute of Clinical Medicine, Vilnius, Lithuania
| | - Julie Kobie
- Merck & Co., Inc., Rahway, NJ, United States
| | | | | | - Yuan Sun
- Merck & Co., Inc., Rahway, NJ, United States
| | | | | | | | - Ursula A Matulonis
- Division of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, United States
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