Ebola-Treating Invetigational Monoclonal Antibody Safe for Adults

by Mohamed Fathima S on  January 25, 2019 at 10:33 AM Tropical Disease News
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The investigational Ebola treatment mAb114 in eighteen healthy adults is effective, safe, well-tolerated and easy-to-administer, reveal findings published in The Lancet. Treatment with monoclonal antibody was given as part of phase I clinical trial.
Ebola-Treating Invetigational Monoclonal Antibody Safe for Adults
Ebola-Treating Invetigational Monoclonal Antibody Safe for Adults

The investigational treatment is currently being offered to Ebola patients in the Democratic Republic of the Congo (DRC) under compassionate use and as part of a Phase 2/3 clinical trial of multiple investigational treatments. mAb114, a single monoclonal antibody, binds to the core receptor binding domain of the Zaire ebolavirus surface protein, preventing the virus from infecting human cells. Scientists isolated the antibody from a human survivor of the 1995 Ebola outbreak in Kikwit, DRC. Prior studies showed that mAb114 can protect monkeys from lethal Ebola virus disease when given as late as five days after infection.

Participants in the Phase 1 clinical trial received a single intravenous infusion of mAb114, administered over approximately 30 minutes. Three participants received a 5 milligram(mg)/kilogram (kg) dose; five participants received a 25 mg/kg dose; and 10 participants received a 50 mg/kg dose. All infusions were well-tolerated. Four participants reported mild side effects, such as discomfort, muscle or joint pain, headache, nausea, and chills in the three days following the infusion.

As expected, levels of mAb114 in the blood increased as the dosage was increased. Investigators also observed relatively uniform levels of absorption, distribution, and elimination of mAb114 among participants.

The authors note several advantages for deploying mAb114 in an outbreak setting, including the ease and speed of its administration, and its formulation as a freeze-dried powder that does not require freezer storage. The powder is reconstituted with sterile water and added to saline for administration.

In addition to the ongoing Phase 2/3 clinical trial of mAb114 in the DRC, the VRC is planning to initiate another Phase 1 trial of the investigational treatment in Africa.



Source: Eurekalert

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