1. CA-125 ELIMination Rate Constant K (KELIM) Is a Marker of Chemosensitivity in Patients with Ovarian Cancer: Results from the Phase II CHIVA Trial
- Author
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Philippe Follana, Pierre Combe, Eric Pujade-Lauraine, Alexandra Leary, Patrick Robelin, Gilles Freyer, Michel Fabbro, Nathalie Bonichon-Lamichhane, Christophe Desauw, Olivier Colomban, Christophe Louvet, Jean-Emmanuel Kurtz, Gwenael Ferron, M. Leheurteur, Annick Chevalier-Place, Benoit You, Gaëtan de Rauglaudre, Isabelle Ray-Coquard, Jean-Pierre Lotz, Sophie Abadie-Lacourtoisie, Florence Joly, Francesco Del Piano, and Michel Tod
- Subjects
Adult ,Oncology ,Cancer Research ,medicine.medical_specialty ,medicine.medical_treatment ,Logistic regression ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Elimination rate constant ,Internal medicine ,Antineoplastic Combined Chemotherapy Protocols ,medicine ,Humans ,In patient ,030212 general & internal medicine ,Aged ,Neoplasm Staging ,Ovarian Neoplasms ,Chemotherapy ,business.industry ,Cytoreduction Surgical Procedures ,Middle Aged ,medicine.disease ,Debulking ,Neoadjuvant Therapy ,Progression-Free Survival ,Regimen ,chemistry ,Drug Resistance, Neoplasm ,CA-125 Antigen ,030220 oncology & carcinogenesis ,Female ,Nintedanib ,Ovarian cancer ,business - Abstract
Purpose: In patients with ovarian cancer receiving neoadjuvant chemotherapy, the first-line treatment success will depend on both the tumor-primary chemosensitivity and the completeness of interval debulking surgery (IDS). The modeled CA-125 ELIMination rate constant K (KELIM), calculated with the CA-125 longitudinal kinetics during the first 100 chemotherapy days, is a validated early marker of tumor chemosensitivity. The objective was to investigate the role of the chemosensitivity relative to the success of first-line medical–surgical treatment. Experimental Design: The CA-125 concentrations were prospectively measured in the randomized phase II trial CHIVA (NCT01583322, carboplatin–paclitaxel regimen ± nintedanib, and IDS, n = 188 patients). The KELIM predictive value regarding the tumor response rate, likelihood of complete IDS, risk of subsequent platinum-resistant relapse (PtRR), progression-free survival (PFS), and overall survival (OS) was assessed using univariate and multivariate tests. Results: The data from 134 patients were analyzed. KELIM was an independent and major predictor of subsequent PtRR risk, and of survivals. The final logistic regression model, including KELIM [OR = 0.13; 95% confidence interval (CI), 0.03–0.49] and complete IDS (no vs. yes, OR = 0.30; 95% CI, 0.11–0.76) highlights the preponderant role of chemosensitivity on the success of the first-line treatment. In patients with highly chemosensitive diseases, the patient prognosis was driven more by the chemotherapy-induced antitumor effects than by the surgery. Conclusions: The tumor-primary chemosensitivity, assessed by the modeled CA-125 KELIM calculated during neoadjuvant chemotherapy (http://www.biomarker-kinetics.org/CA-125-neo), may be a major parameter to consider for decision-making regarding IDS attempt, and selecting patients for treatments meant to reverse the primary chemoresistance. See related commentary by May and Oza, p. 4432
- Published
- 2020