Clinical Ophthalmology (Nov 2023)
Efficacy and Toxicity Evaluation of Bepotastine Besilate 1.5% Preservative-Free Eye Drops Vs Olopatadine Hydrochloride 0.2% Bak-Preserved Eye Drops in Patients with Allergic Conjunctivitis
Abstract
María Cecilia Marini,1 Martín Lucas Berra,2 Fernada Girado,3 Paula Alejandra Albera,4 Melina Sol del Papa,5 María Silvia Passerini,5 Alejandro Javier Aguilar6 1Ophthalmology Service, El Cruce-Nestor Kirchner High Complexity Hospital, Buenos Aires, Argentina; 2Cornea Transplant Service, Pedro Lagleyze Institute, Autonomous City of Buenos Aires, Argentina; 3Ophthalmology Service, Churruca-Visca Police Medical Complex, Autonomous City of Buenos Aires, Argentina; 4Ocular Surface Service, Santa Lucia Ophthalmological Hospital, Autonomous City of Buenos Aires, Argentina; 5Medical Affairs Department, Poen Laboratories, Autonomous City of Buenos Aires, Argentina; 6Ocular Surface Service, Lomas de San Isidro Medical Group, Buenos Aires, ArgentinaCorrespondence: Melina Sol del Papa, Medical Affairs Department, Poen Laboratories, Gómez de Fonseca 652, Autonomous City of Buenos Aires, C1407 ATL, Argentina, Tel +54 946 700100, Email [email protected]: To study the efficacy and toxic effects of bepotastine besilate 1.5% preservative-free (BB-PF) and olopatadine 0.2% BAK-preserved (OL-BAK) drops on the ocular surface of patients with allergic conjunctivitis.Patients and Methods: Ninety-seven patients with allergic conjunctivitis diagnosis participated in a prospective, multicenter, randomized, double-blind, controlled, parallel-group clinical trial. Patients received either BB-PF (n=48) or OL-BAK (n=49), both administered once daily in the morning. The patients were followed for 60 days. Ocular itching was the primary outcome measure. Secondary outcomes included ocular symptoms, signs, and non-ocular symptoms associated with rhinoconjunctivitis. Conjunctival impression cytology (CIC) was performed to evaluate histopathological changes related to the toxic effects of preservatives.Results: BB-PF treatment was associated with a 1.30 more probability of diminished ocular itching than OL-BAK (odds ratio (OR)=1.30; 95% CI=(0.96– 1.7); p=0.086). No statistically significant differences were found between treatments in the resolution of other ocular symptoms or signs, except for tearing, which was superior in the BB-PF (OR=1.37; 95% (1.26– 1.47); p< 0.0001). BB-PF was superior in terms of the resolution of rhinorrhea (p=0.040) and nasal itching (p=0.037). After 60 days of treatment, the BB-PF group exhibited 2.0 times higher probability of having a lower Nelson scale score compared to the OL-BAK group (OR=2.00; 95% CI=(1.19– 3.34); p=0.010).Conclusion: Both medications presented a similar efficacy in terms of the resolution of ocular signs and symptoms associated with ocular conjunctivitis. BB-PF is superior in the resolution of non-ocular symptoms and safer for the ocular surface than OL-BAK.Keywords: allergic conjunctivitis, bepotastine besilate, olopatadine, preservative-free, ocular surface, rhinoconjunctivitis