Phase2a Primaquine Dose Escalation Study
Phase 2a Dose Escalation Study of the Efficacy, Safety, and Pharmacokinetics of Low Dose Primaquine for Gametocytocidal Activity Against P. Falciparum in Sub-Saharan Africa and South East Asia
1 other identifier
interventional
81
1 country
1
Brief Summary
The purpose of this study is to evaluate the safety, efficacy, and pharmacokinetics of low single-dose primaquine for gametocidal activity against P.falciparum among adult glucose-6-phosphate dehydrogenase (G6PD)-normal malaria patients.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started Sep 2013
Shorter than P25 for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 26, 2012
CompletedFirst Posted
Study publicly available on registry
December 6, 2012
CompletedStudy Start
First participant enrolled
September 1, 2013
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2014
CompletedJanuary 19, 2015
January 1, 2015
1.2 years
November 26, 2012
January 16, 2015
Conditions
Outcome Measures
Primary Outcomes (1)
mosquito infectivity assessed through membrane feeding
Baseline, Days 1, 2, 7
7 days
Secondary Outcomes (4)
gametocyte prevalence and density
28 days
primaquine pharmacokinetics - area under the curve (AUC) of parent drug and metabolite
24 hours
asexual parasite prevalence and density
28 days
safety measurements including hemoglobin and signs of hemolysis
28 days
Study Arms (5)
dihydroartemisinin-piperaquine only
ACTIVE COMPARATORdihydroartemisinin -piperaquine (DP) only
DP and 0.125 mg/kg primaquine
EXPERIMENTALDP and single dose oral 0.125 mg/kg primaquine
DP and 0.5 mg/kg primaquine
EXPERIMENTALDP and single dose oral 0.5 mg/kg primaquine
DP and 0.25 mg/kg primaquine
EXPERIMENTALDP and a single dose oral 0.25 mg/kg primaquine
DP and 0.0625 mg/kg primaquine
EXPERIMENTALDP and a single dose oral 0.0625 mg/kg primaquine
Interventions
Eligibility Criteria
You may qualify if:
- Male
- Age \>= 18 years and \< 50 years
- Malaria blood thick film positive
- Presence of gametocytes on thick blood film
- Agrees to admission to study ward for 26 hours post diagnosis and available for follow up visits
- No allergies to study drugs
- Hemoglobin \>= 8 g/dl
- No evidence of severe or chronic disease
- Written, informed consent
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of California, San Franciscolead
- Malaria Research and Training Center, Bamako, Malicollaborator
- Shoklo Malaria Research Unitcollaborator
- Mahidol Oxford Tropical Medicine Research Unitcollaborator
- Bill and Melinda Gates Foundationcollaborator
- Wellcome Trustcollaborator
Study Sites (1)
Malaria Research and Training Centre
Bamako, Mali
Related Publications (7)
Gosling RD, Okell L, Mosha J, Chandramohan D. The role of antimalarial treatment in the elimination of malaria. Clin Microbiol Infect. 2011 Nov;17(11):1617-23. doi: 10.1111/j.1469-0691.2011.03660.x. Epub 2011 Sep 26.
PMID: 21951597BACKGROUNDBaird JK, Schwartz E, Hoffman SL. Prevention and treatment of vivax malaria. Curr Infect Dis Rep. 2007 Jan;9(1):39-46. doi: 10.1007/s11908-007-0021-4.
PMID: 17254503BACKGROUNDWHO (2011) World Malaria Report 2011. Geneva: World Health Organization.
BACKGROUNDWHO (2010) Guidelines for the treatment of malaria, Second edition. Geneva: World Health Organization
BACKGROUNDEl-Sayed B, El-Zaki SE, Babiker H, Gadalla N, Ageep T, Mansour F, Baraka O, Milligan P, Babiker A. A randomized open-label trial of artesunate- sulfadoxine-pyrimethamine with or without primaquine for elimination of sub-microscopic P. falciparum parasitaemia and gametocyte carriage in eastern Sudan. PLoS One. 2007 Dec 12;2(12):e1311. doi: 10.1371/journal.pone.0001311.
PMID: 18074034BACKGROUNDShekalaghe SA, ter Braak R, Daou M, Kavishe R, van den Bijllaardt W, van den Bosch S, Koenderink JB, Luty AJ, Whitty CJ, Drakeley C, Sauerwein RW, Bousema T. In Tanzania, hemolysis after a single dose of primaquine coadministered with an artemisinin is not restricted to glucose-6-phosphate dehydrogenase-deficient (G6PD A-) individuals. Antimicrob Agents Chemother. 2010 May;54(5):1762-8. doi: 10.1128/AAC.01135-09. Epub 2010 Mar 1.
PMID: 20194698BACKGROUNDDicko A, Brown JM, Diawara H, Baber I, Mahamar A, Soumare HM, Sanogo K, Koita F, Keita S, Traore SF, Chen I, Poirot E, Hwang J, McCulloch C, Lanke K, Pett H, Niemi M, Nosten F, Bousema T, Gosling R. Primaquine to reduce transmission of Plasmodium falciparum malaria in Mali: a single-blind, dose-ranging, adaptive randomised phase 2 trial. Lancet Infect Dis. 2016 Jun;16(6):674-684. doi: 10.1016/S1473-3099(15)00479-X. Epub 2016 Feb 20.
PMID: 26906747DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Roland Gosling, MD, PhD
University of California, San Francisco
- PRINCIPAL INVESTIGATOR
Alassane Dicko, MD
Malaria Research and Training Centre
- PRINCIPAL INVESTIGATOR
François Nosten, MD
Shoklo Malaria Research Unit
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 26, 2012
First Posted
December 6, 2012
Study Start
September 1, 2013
Primary Completion
December 1, 2014
Study Completion
December 1, 2014
Last Updated
January 19, 2015
Record last verified: 2015-01