Esme P, Botsali A, Erbil H, Aksoy OA, Caliskan E. Bioactivity of abobotulinum toxin is preserved till 2 weeks upon storage at room temperature: Half body comparative study on rabbit model.
J Cosmet Dermatol 2020;
20:1367-1373. [PMID:
33170993 DOI:
10.1111/jocd.13836]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 10/30/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND
Breakages of the cold chain of botulinum neurotoxin A (BONT-A) preparations is not a rare event and occurs due to several unexpected and unintentional reasons during daily practice and intervention schedules could not be proposed due to the lack of data.
OBJECTIVE
To investigate the heat stability of abobotulinum toxin A (AboBONT-A) in terms of efficacy and duration of action upon storage at room temperature (25°C) for 2, 4, and 8 weeks.
METHODS AND MATERIALS
Twenty rabbits were divided into four groups and received an injection of ideally stored AboBONT-A (Group 1) and stored AboBONT-A for 2 (Group 2), 4 (Group 3), and 8 weeks (Group 4) at room temperature into the anterior auricular muscle. All rabbits were followed up and photographed by weekly for 16 weeks. Grade of paralysis was evaluated by using a modified visual scoring system.
RESULTS
No significant alteration was found in initial potency of stored AboBONT-A at room temperature for up to 4 weeks. Storage at room temperature for 2 weeks did not affect the duration of action (group 2; P = .69), and faster recovery was observed in group 3 and group 4.
CONCLUSION
The bioactivity of AboBONT-A is not altered till 2 weeks upon storage at room temperature.
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