Design and Testing of a Cabotegravir Implant for HIV Prevention.
Cabotegravir
Hot-melt extrusion
Hydrophilic poly(ether urethane)
Pre-exposure prophylaxis
Reservoir device
Subcutaneous implant
Journal
Journal of controlled release : official journal of the Controlled Release Society
ISSN: 1873-4995
Titre abrégé: J Control Release
Pays: Netherlands
ID NLM: 8607908
Informations de publication
Date de publication:
10 02 2021
10 02 2021
Historique:
received:
24
06
2020
revised:
14
12
2020
accepted:
15
12
2020
pubmed:
22
12
2020
medline:
8
7
2021
entrez:
21
12
2020
Statut:
ppublish
Résumé
Long-acting antiretroviral implants could help protect high-risk individuals from HIV infection. We describe the design and testing of a long-acting reservoir subcutaneous implant capable of releasing cabotegravir for several months. We compressed cabotegravir and excipients into cylindrical pellets and heat-sealed them in tubing composed of hydrophilic poly(ether-urethane) -. The implants have a 47 mm lumen length, 3.6 mm outer diameter, and 200 μm wall thickness. Four cabotegravir pellets were sealed in the membrane, with a total drug loading of 274 ± 3 mg. In vivo, the implants released 348 ± 107 μg/day (median value per implant, N = 41) of cabotegravir in rhesus macaques. Five implants generated an average cabotegravir plasma concentration of 373 ng/ml in rhesus macaques. The non-human primates tolerated the implant without gross pathology or microscopic signs of histopathology compared to placebo implants. Cabotegravir plasma levels in macaques dropped below detectable levels within two weeks after the removal of the implants.
Identifiants
pubmed: 33347943
pii: S0168-3659(20)30748-3
doi: 10.1016/j.jconrel.2020.12.024
pmc: PMC7906957
mid: NIHMS1661893
pii:
doi:
Substances chimiques
Anti-HIV Agents
0
Pyridones
0
cabotegravir
HMH0132Z1Q
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
658-668Subventions
Organisme : NIH HHS
ID : P51 OD011104
Pays : United States
Organisme : NIAID NIH HHS
ID : R01 AI131433
Pays : United States
Organisme : NIAID NIH HHS
ID : UM1 AI120184
Pays : United States
Informations de copyright
Copyright © 2020 Elsevier B.V. All rights reserved.
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