PMID- 35331231 OWN - NLM STAT- MEDLINE DCOM- 20220328 LR - 20220401 IS - 1475-2875 (Electronic) IS - 1475-2875 (Linking) VI - 21 IP - 1 DP - 2022 Mar 24 TI - Malaria chemoprevention and drug resistance: a review of the literature and policy implications. PG - 104 LID - 10.1186/s12936-022-04115-8 [doi] LID - 104 AB - Chemoprevention strategies reduce malaria disease and death, but the efficacy of anti-malarial drugs used for chemoprevention is perennially threatened by drug resistance. This review examines the current impact of chemoprevention on the emergence and spread of drug resistant malaria, and the impact of drug resistance on the efficacy of each of the chemoprevention strategies currently recommended by the World Health Organization, namely, intermittent preventive treatment in pregnancy (IPTp); intermittent preventive treatment in infants (IPTi); seasonal malaria chemoprevention (SMC); and mass drug administration (MDA) for the reduction of disease burden in emergency situations. While the use of drugs to prevent malaria often results in increased prevalence of genetic mutations associated with resistance, malaria chemoprevention interventions do not inevitably lead to meaningful increases in resistance, and even high rates of resistance do not necessarily impair chemoprevention efficacy. At the same time, it can reasonably be anticipated that, over time, as drugs are widely used, resistance will generally increase and efficacy will eventually be lost. Decisions about whether, where and when chemoprevention strategies should be deployed or changed will continue to need to be made on the basis of imperfect evidence, but practical considerations such as prevalence patterns of resistance markers can help guide policy recommendations. CI - (c) 2022. The Author(s). FAU - Plowe, Christopher V AU - Plowe CV AUID- ORCID: 0000-0002-0045-9888 AD - University of Maryland School of Medicine, Baltimore, MD, USA. plowe.chris@gmail.com. LA - eng PT - Journal Article PT - Review DEP - 20220324 PL - England TA - Malar J JT - Malaria journal JID - 101139802 RN - 0 (Drug Combinations) RN - 88463U4SM5 (Sulfadoxine) RN - Z3614QOX8W (Pyrimethamine) SB - IM MH - Chemoprevention/methods MH - Drug Combinations MH - Drug Resistance/genetics MH - Female MH - Humans MH - Infant MH - *Malaria/drug therapy/prevention & control MH - Policy MH - Pregnancy MH - Pyrimethamine/therapeutic use MH - *Sulfadoxine/therapeutic use PMC - PMC8943514 COIS- The author has no conflicts of interest to declare. EDAT- 2022/03/26 06:00 MHDA- 2022/03/29 06:00 PMCR- 2022/03/24 CRDT- 2022/03/25 05:30 PHST- 2022/01/31 00:00 [received] PHST- 2022/03/03 00:00 [accepted] PHST- 2022/03/25 05:30 [entrez] PHST- 2022/03/26 06:00 [pubmed] PHST- 2022/03/29 06:00 [medline] PHST- 2022/03/24 00:00 [pmc-release] AID - 10.1186/s12936-022-04115-8 [pii] AID - 4115 [pii] AID - 10.1186/s12936-022-04115-8 [doi] PST - epublish SO - Malar J. 2022 Mar 24;21(1):104. doi: 10.1186/s12936-022-04115-8.