Antihistamines and ovarian cancer survival: nationwide cohort study and in vitro cell viability assay
Menée sur trois lignées cellulaires de cancer ovarien et à partir de données portant sur 5 075 patientes atteintes d'un cancer de l'ovaire diagnostiqué entre 2000 et 2015, cette étude de cohorte analyse l'association entre une utilisation d'antihistaminiques et la mortalité spécifique
Antihistamines with cationic amphiphilic drug (CAD) characteristics induce cancer-specific cell death in experimental studies. Epidemiologic evidence is, however, limited. In a Danish nationwide cohort of ovarian cancer patients diagnosed during 2000-2015 (n = 5075), we evaluated the association between antihistamine prescriptions and cancer mortality. We used Cox regression models to estimate hazard ratios (HRs) with 95% confidence intervals (CIs) for ovarian cancer mortality. In an in vitro cell viability assay, we evaluated cell-death in three ovarian cancer cell lines after treatment with clinically relevant doses of eight antihistamines. In our cohort study, CAD antihistamine use (≥1 prescription; n = 133) was associated with a HR of 0.63 (95% CI: 0.40 to 0.99) compared to use of non-CAD antihistamines (n = 304), and we found a tendencytowards a dose-response association. In our cell viability assay, we found consistent and dose-dependent cytotoxicity for all CAD but not non-CAD antihistamines. In this nationwide cohort study, use of antihistamines with CAD characteristics is associated with a prognostic benefit in ovarian cancer patients.