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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
arts and humanities
Ivermectin and onchocercal optic neuritis: Short-term effects
Eye (Basingstoke), Volume 8, No. 4, Year 1994
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Description
In 1982 the macrocyclic lactone, ivermectin, was first tested in human patients with onchocerciasis. It has since undergone phase I to IV trials and is now being widely distributed in onchocercal areas. The previous microfilaricide, diethylcarbamazine citrate (DEC), is known to precipitate or exacerbate active optic neuritis in some onchocercal patients, as part of a wider inflammatory response (the Mazzotti reaction). Ivermectin may also cause a mild reaction, especially in people with high microfilarial loads. Few data are available concerning the effect of ivermectin on active optic neuritis. A large, randomised, double-masked, phase IV trial is reported. Individuals were screened for evidence of optic nerve disease (OND), and those identified as possible cases of OND underwent detailed ophthalmic examination, including fluorescein angiography, before being dosed with ivermectin or placebo. A total of 6831 persons were screened of whom 856 (13%) underwent angiography prior to dosing. At 7–14 days after dosing an attempt was made to reexamine 50% of adults over the age of 20 years, including all those with OND. Six hundred and eighty-eight repeat or new angiograms were performed. During this period, 5 new cases of active optic neuritis and one case of exacerbation of existing optic neuritis were identified. Five of these individuals had received placebo and one ivermectin. Two individuals with optic neuritis before dosing had improved after 7–14 days. One had received placebo, the other ivermectin. Ivermectin does not appear to precipitate or exacerbate optic neuritis at a period of 7–14 days. © 1994 Royal College of Ophthalmologists.
Authors & Co-Authors
Murdoch, Ian E.
Unknown Affiliation
Abiose, Adenike O.
Unknown Affiliation
Babalola, Olufemi Emmanuel
Unknown Affiliation
Bird, Alan C.
Unknown Affiliation
Cousens, Simon Nicholas
Unknown Affiliation
Evans, J. R.
Unknown Affiliation
Jones, Barrie R.
Unknown Affiliation
Statistics
Citations: 8
Authors: 7
Affiliations: 6
Identifiers
Doi:
10.1038/eye.1994.108
ISSN:
0950222X
e-ISSN:
14765454
Research Areas
Health System And Policy
Infectious Diseases