Prevention of Malaria With Dihydroartemisinine + Piperaquine for Forest Rangers (PREMAL)
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|ClinicalTrials.gov Identifier: NCT02788864|
Recruitment Status : Completed
First Posted : June 2, 2016
Last Update Posted : March 7, 2017
|Condition or disease||Intervention/treatment||Phase|
|Malaria||Drug: Arterakine (DHA/piperaquine) Drug: Placebo||Phase 4|
To assess the protective effect of 3-day DP regimen for forest rangers working for long-term in forest where malaria transmission is intense, all eligible forest rangers will be treated with a full course of DP + primaquine to eradicate all parasites which may survive in their blood while staying in non- malaria transmission areas.
Just before returning back to the forest participants will be randomized to receive either Arterakine (dihydroartemisinine (DHA)/piperaquine) (intervention arm) or placebo (control arm). Participants will be assessed for parasitemia before and after the forest trip with high volume, ultrasensitive, PCR (HVUqPCR). The minimum time span between two forest trips should be 20 days so participants could complete the 14 day primaquine course and the Arterakine (dihydroartemisinine (DHA)/piperaquine).
There is no limit in the duration between trips. Participants are tested for P.falciparum, P.vivax infection before they return to the forest.
Each participant will be visited 2 weeks or later after returning home from the forest and examined. The rationale for the added two weeks is to detect blood stages of infections, which may have been inoculated towards the end of the forest visit.
If found to be sick, the patient will be treated according to government treatment guidelines. A 4ml venous blood sample will be obtained for Hb and HVUSqPCR.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||150 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)|
|Official Title:||A Randomized, Placebo-controlled, Double-blind Trial Using Dihydroartemisinine+Piperaquine (DP) to Protect Forest Workers From Malaria in Bu Gia Map National Park|
|Actual Study Start Date :||May 20, 2016|
|Actual Primary Completion Date :||November 30, 2016|
|Actual Study Completion Date :||November 30, 2016|
Active Comparator: Arterakine
Active drug: Arterakine (DHA/piperaquine) one tablet contains 40 mg of dihydroartemisinin and 320 mg piperaquine. Weight based regimen: 7 mg/kg dihydroartemisinin; 55 mg/kg piperaquine phosphate) for 3 days prior to forest visit (day -2, -1 and day 0 prior forest visit)
Drug: Arterakine (DHA/piperaquine)
Stage 1: Parasite Clearance
Stage 2: Forest trip
• Arterakine (DHA/piperaquine), one tablet contains 40 mg of dihydroartemisinine and 320 mg piperaquine. Weight based regimen: 7 mg/kg dihydroartemisinine; 55 mg/kg piperaquine phosphate) for 3 days prior to forest visit (day -2, -1 and day 0 prior forest visit)
Placebo Comparator: Placebo
Placebo (visually matched to Arterakine for 3 days prior to forest visit (day -2, -1 and day 0 prior forest visit)
Stage 1: Parasite Clearance
Stage 2: Forest trip
• Placebo (visually matched to Arterakine (DHA/piperaquine) for 3 days prior to forest visit (day -2, -1 and day 0 prior forest visit)
- the proportion of study subjects with any malaria parasitaemia (P.falciparum, mixed parasitaemia of P.falciparum and P.vivax) and the incidence rate of symptomatic malaria [ Time Frame: at 2 weeks after coming back from the forest ]The primary endpoints are the proportion of study subjects with any malaria parasitaemia (P.falciparum, mixed parasitaemia of P.falciparum and P.vivax) at 2 weeks after coming back from the forest assessed by high volume, ultrasensitive PCR (HVUSqPCR) and the incidence rate of symptomatic malaria (P.falciparum, mixed P.falciparum + P.vivax) during the two week follow-up period as assessed by the study doctor.
- The proportion of different anopheles species amongst all captured mosquito anopheles [ Time Frame: 1 month ]The proportion of different anopheles species amongst all captured mosquito anopheles as identified by morphology
- The proportion of sporozoite-carrying mosquitoes (any parasite, P.falciparum, mixed P.falciparum and P.vivax) [ Time Frame: 6 months ]The proportion of sporozoite-carrying mosquitoes (any parasite, P.falciparum, mixed P.falciparum and P.vivax) as assessed by PCR.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02788864
|Bu Gia Map Commune Health Station|
|Binh Phuoc, Vietnam, 830000|
|Principal Investigator:||Hung Son Do, Dr||Oxford University Clinical Research Unit|