Development of New Strategies for Malaria Chemoprophylaxis: From Monoclonal Antibodies to Long-Acting Injectable Drugs

Drug discovery for malaria has traditionally focused on orally available drugs that kill the abundant, parasitic blood stage. Recently, there has also been an interest in injectable medicines, in the form of monoclonal antibodies (mAbs) with long-lasting plasma half-lives or long-lasting depot formu...

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Main Author: Joerg J. Moehrle
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Tropical Medicine and Infectious Disease
Subjects:
Online Access:https://www.mdpi.com/2414-6366/7/4/58
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author Joerg J. Moehrle
author_facet Joerg J. Moehrle
author_sort Joerg J. Moehrle
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description Drug discovery for malaria has traditionally focused on orally available drugs that kill the abundant, parasitic blood stage. Recently, there has also been an interest in injectable medicines, in the form of monoclonal antibodies (mAbs) with long-lasting plasma half-lives or long-lasting depot formulations of small molecules. These could act as prophylactic drugs, targeting the sporozoites and other earlier parasitic stages in the liver, when the parasites are less numerous, or as another intervention strategy targeting the formation of infectious gametocytes. Generally speaking, the development of mAbs is less risky (costly) than small-molecule drugs, and they have an excellent safety profile with few or no off-target effects. Therefore, populations who are the most vulnerable to malaria, i.e., pregnant women and young children would have access to such new treatments much faster than is presently the case for new antimalarials. An analysis of mAbs that were successfully developed for oncology illustrates some of the feasibility aspects, and their potential as affordable drugs in low- and middle-income countries.
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spelling doaj.art-0bc4a1fe260442128dd8a0954603401c2023-12-03T14:02:09ZengMDPI AGTropical Medicine and Infectious Disease2414-63662022-04-01745810.3390/tropicalmed7040058Development of New Strategies for Malaria Chemoprophylaxis: From Monoclonal Antibodies to Long-Acting Injectable DrugsJoerg J. Moehrle0Integrated Sciences, R&D, Medicines for Malaria Venture, Route de Pré Bois 20, CH-1215 Geneva 15, SwitzerlandDrug discovery for malaria has traditionally focused on orally available drugs that kill the abundant, parasitic blood stage. Recently, there has also been an interest in injectable medicines, in the form of monoclonal antibodies (mAbs) with long-lasting plasma half-lives or long-lasting depot formulations of small molecules. These could act as prophylactic drugs, targeting the sporozoites and other earlier parasitic stages in the liver, when the parasites are less numerous, or as another intervention strategy targeting the formation of infectious gametocytes. Generally speaking, the development of mAbs is less risky (costly) than small-molecule drugs, and they have an excellent safety profile with few or no off-target effects. Therefore, populations who are the most vulnerable to malaria, i.e., pregnant women and young children would have access to such new treatments much faster than is presently the case for new antimalarials. An analysis of mAbs that were successfully developed for oncology illustrates some of the feasibility aspects, and their potential as affordable drugs in low- and middle-income countries.https://www.mdpi.com/2414-6366/7/4/58malaria<i>P. falciparum</i><i>P. vivax</i>chemotherapychemopreventionintermittent preventive treatment
spellingShingle Joerg J. Moehrle
Development of New Strategies for Malaria Chemoprophylaxis: From Monoclonal Antibodies to Long-Acting Injectable Drugs
Tropical Medicine and Infectious Disease
malaria
<i>P. falciparum</i>
<i>P. vivax</i>
chemotherapy
chemoprevention
intermittent preventive treatment
title Development of New Strategies for Malaria Chemoprophylaxis: From Monoclonal Antibodies to Long-Acting Injectable Drugs
title_full Development of New Strategies for Malaria Chemoprophylaxis: From Monoclonal Antibodies to Long-Acting Injectable Drugs
title_fullStr Development of New Strategies for Malaria Chemoprophylaxis: From Monoclonal Antibodies to Long-Acting Injectable Drugs
title_full_unstemmed Development of New Strategies for Malaria Chemoprophylaxis: From Monoclonal Antibodies to Long-Acting Injectable Drugs
title_short Development of New Strategies for Malaria Chemoprophylaxis: From Monoclonal Antibodies to Long-Acting Injectable Drugs
title_sort development of new strategies for malaria chemoprophylaxis from monoclonal antibodies to long acting injectable drugs
topic malaria
<i>P. falciparum</i>
<i>P. vivax</i>
chemotherapy
chemoprevention
intermittent preventive treatment
url https://www.mdpi.com/2414-6366/7/4/58
work_keys_str_mv AT joergjmoehrle developmentofnewstrategiesformalariachemoprophylaxisfrommonoclonalantibodiestolongactinginjectabledrugs