2023
Artemether-lumefantrine efficacy among adults on antiretroviral therapy in Malawi
Nyangulu W, Mungwira R, Divala T, Nampota-Nkomba N, Nyirenda O, Buchwald A, Miller J, Earland D, Adams M, Plowe C, Taylor T, Mallewa J, van Oosterhout J, Parikh S, Laurens M, Laufer M. Artemether-lumefantrine efficacy among adults on antiretroviral therapy in Malawi. Malaria Journal 2023, 22: 32. PMID: 36707795, PMCID: PMC9881508, DOI: 10.1186/s12936-023-04466-w.Peer-Reviewed Original ResearchConceptsAntiretroviral therapyLumefantrine levelsTreatment failureDrug-drug interactionsACPR ratesMalaria infectionTrimethoprim-sulfamethoxazolePCR correctionTreatment efficacyUndetectable HIV RNA viral loadEfavirenz-based antiretroviral therapyHIV RNA viral loadUncomplicated Plasmodium falciparum malariaHuman immunodeficiency virus (HIV) infectionArtemether-lumefantrine efficacyCohort of PWHEfavirenz-based regimensImmunodeficiency virus infectionRNA viral loadPlasmodium falciparum malariaMalaria treatment failurePopulation of adultsRandom-effects modelTherapeutic efficacy monitoringLumefantrine exposure
2020
Bordetella bronchiseptica: a rare cause of meningitis
Radcliffe C, Lier A, Doilicho N, Parikh S, Kaddouh F. Bordetella bronchiseptica: a rare cause of meningitis. BMC Infectious Diseases 2020, 20: 922. PMID: 33272197, PMCID: PMC7713019, DOI: 10.1186/s12879-020-05668-2.Peer-Reviewed Original ResearchConceptsRare causeBaseline neurological statusSetting of immunosuppressionOnset of symptomsCerebrospinal fluid leakTraumatic cerebrospinal fluid (CSF) leakHospital courseMechanical fallNeurological statusRecent surgeryRespiratory infectionsUlcerative colitisUnusual causeCase presentationWeDrain placementClinical conditionsFluid leakMeningitisAnimal contactMonoclonal antibodiesAnimal exposureAerobic coccobacillusB. bronchisepticaSystematic literature reviewCause
2019
Efficacy and risk of harms of repeat ivermectin mass drug administrations for control of malaria (RIMDAMAL): a cluster-randomised trial
Foy BD, Alout H, Seaman JA, Rao S, Magalhaes T, Wade M, Parikh S, Soma DD, Sagna AB, Fournet F, Slater HC, Bougma R, Drabo F, Diabaté A, Coulidiaty AGV, Rouamba N, Dabiré RK. Efficacy and risk of harms of repeat ivermectin mass drug administrations for control of malaria (RIMDAMAL): a cluster-randomised trial. The Lancet 2019, 393: 1517-1526. PMID: 30878222, PMCID: PMC6459982, DOI: 10.1016/s0140-6736(18)32321-3.Peer-Reviewed Original ResearchConceptsMass drug administrationCluster-randomised trialIntervention groupMalaria episodesControl groupDrug AdministrationDetection cohortMass administrationIvermectin mass drug administrationUncomplicated malaria episodesClinical malaria episodesMalaria transmission seasonSingle oral dosesControl of malariaAdverse eventsCumulative incidencePrimary outcomeOral dosesEligible participantsAdverse reactionsFurther dosesTwo-armExclusion criteriaTransmission seasonTreatment phase
2016
Population Pharmacokinetics and Pharmacodynamics of Lumefantrine in Young Ugandan Children Treated With Artemether-Lumefantrine for Uncomplicated Malaria
Tchaparian E, Sambol NC, Arinaitwe E, McCormack SA, Bigira V, Wanzira H, Muhindo M, Creek DJ, Sukumar N, Blessborn D, Tappero JW, Kakuru A, Bergqvist Y, Aweeka FT, Parikh S. Population Pharmacokinetics and Pharmacodynamics of Lumefantrine in Young Ugandan Children Treated With Artemether-Lumefantrine for Uncomplicated Malaria. The Journal Of Infectious Diseases 2016, 214: 1243-1251. PMID: 27471317, PMCID: PMC5034953, DOI: 10.1093/infdis/jiw338.Peer-Reviewed Original ResearchConceptsArtemether-lumefantrineRecurrent parasitemiaLumefantrine exposurePopulation pharmacokineticsUgandan childrenYoung Ugandan childrenPlasmodium falciparum malariaDay 7 concentrationsAge 6 monthsFirst-order absorptionWhole blood concentrationsYoung childrenUncomplicated malariaFalciparum malariaBlood concentrationsTreatment outcomesLumefantrine concentrationsSignificant positive correlationParasitemiaOlder childrenPharmacokineticsLumefantrineMalariaExposure levelsOpen modelAntiretroviral Choice for HIV Impacts Antimalarial Exposure and Treatment Outcomes in Ugandan Children
Parikh S, Kajubi R, Huang L, Ssebuliba J, Kiconco S, Gao Q, Li F, Were M, Kakuru A, Achan J, Mwebaza N, Aweeka FT. Antiretroviral Choice for HIV Impacts Antimalarial Exposure and Treatment Outcomes in Ugandan Children. Clinical Infectious Diseases 2016, 63: 414-422. PMID: 27143666, PMCID: PMC4946019, DOI: 10.1093/cid/ciw291.Peer-Reviewed Original ResearchConceptsArtemether-lumefantrine treatmentLPV/rRecurrent malariaLumefantrine exposureDrug exposureCritical drug-drug interactionsFirst-line antiretroviral therapy regimensArtemisinin-based combination therapyLopinavir/ritonavirAntiretroviral therapy regimensPlasmodium falciparum malariaHuman immunodeficiency virusDay 7 concentrationsMalaria-endemic regionsDrug-drug interactionsAntimalarial exposureAntimalarial componentPharmacokinetic samplingArtemether-lumefantrineFalciparum malariaClinical outcomesDosing regimensTherapy regimensImmunodeficiency virusCombination therapy
2015
Artemether-Lumefantrine Pharmacokinetics and Clinical Response Are Minimally Altered in Pregnant Ugandan Women Treated for Uncomplicated Falciparum Malaria
Nyunt MM, Nguyen VK, Kajubi R, Huang L, Ssebuliba J, Kiconco S, Mwima MW, Achan J, Aweeka F, Parikh S, Mwebaza N. Artemether-Lumefantrine Pharmacokinetics and Clinical Response Are Minimally Altered in Pregnant Ugandan Women Treated for Uncomplicated Falciparum Malaria. Antimicrobial Agents And Chemotherapy 2015, 60: 1274-1282. PMID: 26666942, PMCID: PMC4775973, DOI: 10.1128/aac.01605-15.Peer-Reviewed Original ResearchConceptsNonpregnant adultsPregnant womenArtemether-lumefantrineFalciparum malariaUncomplicated Plasmodium falciparum malariaPharmacokinetics of artemetherPregnant Ugandan womenSix-dose regimenFirst-line regimenUncomplicated falciparum malariaPlasmodium falciparum malariaHigh transmission settingsUncomplicated malariaClinical responsePharmacokinetic exposureTerminal eliminationClinical outcomesThird trimesterTreatment responseAntimalarial efficacyProphylactic periodUgandan womenPharmacokineticsDrug resistanceOverall pharmacokineticsThe epidemiological impact of HIV antiretroviral therapy on malaria in children
Greenhalgh S, Ndeffo M, Galvani AP, Parikh S. The epidemiological impact of HIV antiretroviral therapy on malaria in children. AIDS 2015, 29: 473-482. PMID: 25486414, PMCID: PMC4391884, DOI: 10.1097/qad.0000000000000550.Peer-Reviewed Original ResearchConceptsHIV protease inhibitorsRecurrent malariaMalaria transmissionAntiretroviral therapyArtemether-lumefantrineAnnual incidenceProtease inhibitorsFirst-line antiretroviral regimenFirst-line antiretroviral therapyArtemether-lumefantrine treatmentHIV-negative childrenFirst-line antimalarialsHIV prevalence settingsHIV antiretroviral therapyRecent clinical trialsHIV prevalence levelsMalaria transmission settingsMalaria transmission intensityAntiretroviral regimenAntimalarial treatmentHIV prevalenceProphylactic effectPrevalence settingsClinical trialsHealth burden
2013
Pharmacokinetic Predictors for Recurrent Malaria After Dihydroartemisinin-Piperaquine Treatment of Uncomplicated Malaria in Ugandan Infants
Creek DJ, Bigira V, McCormack S, Arinaitwe E, Wanzira H, Kakuru A, Tappero JW, Sandison TG, Lindegardh N, Nosten F, Aweeka FT, Parikh S. Pharmacokinetic Predictors for Recurrent Malaria After Dihydroartemisinin-Piperaquine Treatment of Uncomplicated Malaria in Ugandan Infants. The Journal Of Infectious Diseases 2013, 207: 1646-1654. PMID: 23447696, PMCID: PMC4318925, DOI: 10.1093/infdis/jit078.Peer-Reviewed Original ResearchConceptsPiperaquine concentrationsRecurrent malariaDay 7TMP-SMXDihydroartemisinin-piperaquine treatmentPK/PD studiesTMP-SMX prophylaxisTrimethoprim-sulfamethoxazole prophylaxisTime of presentationPK/PD dataYears of ageYoung childrenPiperaquine exposureUgandan infantsUncomplicated malariaMalaria treatmentPharmacodynamic dataDP useDay 28PD studiesMalariaDay 63Strong associationPQ concentrationProphylaxis
2007
Amodiaquine Metabolism is Impaired by Common Polymorphisms in CYP2C8: Implications for Malaria Treatment in Africa
Parikh S, Ouedraogo J, Goldstein JA, Rosenthal PJ, Kroetz DL. Amodiaquine Metabolism is Impaired by Common Polymorphisms in CYP2C8: Implications for Malaria Treatment in Africa. Clinical Pharmacology & Therapeutics 2007, 82: 197-203. PMID: 17361129, DOI: 10.1038/sj.clpt.6100122.Peer-Reviewed Original ResearchMeSH KeywordsAlkynesAmodiaquineAntimalarialsAryl Hydrocarbon HydroxylasesBenzoxazinesBurkina FasoChromatography, High Pressure LiquidCyclopropanesCytochrome P-450 CYP2C8Dose-Response Relationship, DrugDrug InteractionsEnzyme InhibitorsGenotypeHIV Protease InhibitorsHumansLopinavirMalaria, FalciparumModels, BiologicalPolymorphism, GeneticPyridinesPyrimidinonesPyronesReverse Transcriptase InhibitorsSaquinavirSpectrophotometry, UltravioletSulfonamidesTreatment OutcomeTrimethoprimConceptsAntimalarial drug amodiaquineMalaria-infected patientsAntiretroviral drug efavirenzImportant clinical implicationsAmodiaquine metabolismCYP2C8 genotypeMalaria treatmentN-desethylamodiaquineCYP2C8 variantsCYP2C8 activityCYP2C8 inhibitorsDrug interactionsDefective metabolismClinical implicationsCYP2C8Common polymorphismsDrug efavirenzMetabolismRelevant concentrationsDrugsEfficacyPrimary metabolitesAllele frequenciesToxicitySample size