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van der Ploeg P, Hendrikse CSE, Thijs AMJ, Westgeest HM, Smedts HPM, Vos MC, Jalving M, Lok CAR, Boere IA, van Ham MAPC, Ottevanger PB, Westermann AM, Mom CH, Lalisang RI, Lambrechts S, Bekkers RLM, Piek JMJ. Phenotype-guided targeted therapy based on functional signal transduction pathway activity in recurrent ovarian cancer patients: The STAPOVER study protocol. Heliyon 2024; 10:e23170. [PMID: 38187310 PMCID: PMC10770441 DOI: 10.1016/j.heliyon.2023.e23170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 11/15/2023] [Accepted: 11/28/2023] [Indexed: 01/09/2024] Open
Abstract
Objective Ovarian cancer is the fifth cause of cancer-related death among women. The benefit of targeted therapy for ovarian cancer patients is limited even if treatment is stratified by molecular signature. There remains a high unmet need for alternative diagnostics that better predict targeted therapy, as current diagnostics are generally inaccurate predictors. Quantitative assessment of functional signal transduction pathway (STP) activity from mRNA measurements of target genes is an alternative approach. Therefore, we aim to identify aberrantly activated STPs in tumour tissue of patients with recurrent ovarian cancer and start phenotype-guided targeted therapy to improve survival without compromising quality of life. Study design Patients with recurrent ovarian cancer and either 1) have platinum-resistant disease, 2) refrain from standard therapy or 3) are asymptomatic and not yet eligible for standard therapy will be included in this multi-centre prospective cohort study with multiple stepwise executed treatment arms. Targeted therapy will be available for patients with aberrantly high functional activity of the oestrogen receptor, androgen receptor, phosphoinositide 3-kinase or Hedgehog STP. The primary endpoint of this study is the progression-free survival (PFS) ratio (PFS2/PFS1 ratio) according to RECIST 1.1 determined by the PFS on matched targeted therapy (PFS2) compared to PFS on prior therapy (PFS1). Secondary endpoints include among others best overall response, overall survival, side effects, health-related quality of life and cost-effectiveness. Conclusion The results of this study will show the clinical applicability of STP activity in selecting recurrent ovarian cancer patients for effective therapies.
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Affiliation(s)
- Phyllis van der Ploeg
- Department of Obstetrics and Gynaecology and Catharina Cancer Institute, Catharina Hospital, Eindhoven, the Netherlands
- GROW School for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands
| | - Cynthia SE. Hendrikse
- Department of Obstetrics and Gynaecology and Catharina Cancer Institute, Catharina Hospital, Eindhoven, the Netherlands
- GROW School for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands
| | - Anna MJ. Thijs
- Department of Internal Medicine and Catharina Cancer Institute, Catharina Hospital, Eindhoven, the Netherlands
| | - Hans M. Westgeest
- Department of Internal Medicine, Amphia Hospital, Breda, the Netherlands
| | - Huberdina PM. Smedts
- Department of Obstetrics and Gynaecology, Amphia Hospital, Breda, the Netherlands
| | - M Caroline Vos
- Department of Obstetrics and Gynaecology, Elisabeth-Tweesteden Hospital, Tilburg, the Netherlands
| | - Mathilde Jalving
- Department of Medical Oncology, University Medical Centre Groningen, Groningen, the Netherlands
| | - Christianne AR. Lok
- Department of Gynaecologic Oncology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - Ingrid A. Boere
- Department of Medical Oncology, Erasmus Medical Centre Cancer Institute, Rotterdam, the Netherlands
| | - Maaike APC. van Ham
- Department of Obstetrics and Gynaecology, Radboud University Medical Centre, Nijmegen, the Netherlands
| | | | - Anneke M. Westermann
- Department of Oncology, Amsterdam University Medical Centre, Amsterdam, the Netherlands
| | - Constantijne H. Mom
- Department of Obstetrics and Gynaecology, Amsterdam University Medical Centre, Amsterdam, the Netherlands
| | - Roy I. Lalisang
- Department of Medical Oncology, Maastricht University Medical Centre +, Maastricht, the Netherlands
| | - Sandrina Lambrechts
- Department of Obstetrics and Gynaecology, Maastricht University Medical Centre +, Maastricht, the Netherlands
| | - Ruud LM. Bekkers
- Department of Obstetrics and Gynaecology and Catharina Cancer Institute, Catharina Hospital, Eindhoven, the Netherlands
- GROW School for Oncology and Reproduction, Maastricht University, Maastricht, the Netherlands
| | - Jurgen MJ. Piek
- Department of Obstetrics and Gynaecology and Catharina Cancer Institute, Catharina Hospital, Eindhoven, the Netherlands
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