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Home / Health News / 2009 / July 2009 / July 1, 2009
New drug for speeding up elimination of river blindness across Africa begins clinical trial
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New drug for speeding up elimination of river blindness across Africa begins clinical trial

A clinical trial is being launched in three African countries of a drug that could eliminate onchocerciasis, or river blindness, one of the leading infectious causes of blindness across Africa.


London, July 1 : A clinical trial is being launched in three African countries of a drug that could eliminate onchocerciasis, or river blindness, one of the leading infectious causes of blindness across Africa.

The drug, moxidectin, is being investigated for its potential to kill or sterilize the adult worms of Onchocerca volvulus, which cause onchocerciasis.

"This is a devastating illness that has plagued 30 African countries for centuries, in particular the populations in the most remote areas 'beyond the end of the road'," says Dr Uche Amazigo, Director of the African Programme for Onchocerciasis Control (APOC).

"Over 100 million people are at risk of infection with onchocerciasis in Africa and a few small areas in the Americas and Yemen."

Onchocerciasis is also called river blindness because the blackfly which transmits the disease breeds in fast flowing rivers, and blindness is the most incapacitating symptom of the disease which also causes debilitating skin disease.

The development of moxidectin for onchocerciasis is being conducted through a collaboration of the Special Programme for Research and Training in Tropical Diseases, which is executed by the World Health Organization (WHO/TDR), and Wyeth Pharmaceuticals. The work ranges from the development of a formulation for human use and initial studies in healthy volunteers, to clinical studies and community studies in Africa. WHO/TDR, working in partnership with African investigators and institutions, is building the capacity and managing the conduct of the clinical trials conducted in Africa.

If the development is successful and results in a positive scientific opinion from the European Medicines Evaluation Agency, Wyeth, with the assistance of WHO, will request approval by national regulatory authorities in the countries where onchocerciasis is endemic.

Dr Henrietta Ukwu, Vice President, Wyeth Pharmaceuticals, says, "Wyeth is committed to improving access to innovative drugs and biologics around the globe including in the developing world. The moxidectin data have been promising so far, and as the programme moves into larger phase III studies, we are hopeful that moxidectin will constitute a significant advance against this devastating disease."

In conducting this trial, TDR will be working with African investigators and institutions. Fifteen hundred people at 4 sites in Ghana, Liberia and the Democratic Republic of Congo will be enrolled in the study.

The trial will take place over the next two and a half years. Currently, the disease is controlled by ivermectin, which has been donated for more than 20 years by the pharmaceutical company Merck and Co.

ANI

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