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Efficacy of Artesunate-Mefloquine Combination Therapy in Trat Province, Thailand

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01659281
Recruitment Status : Completed
First Posted : August 7, 2012
Last Update Posted : August 7, 2012
Information provided by (Responsible Party):
Douglas Walsh, Armed Forces Research Institute of Medical Sciences, Thailand

Brief Summary:
The main purpose of this study is to compare artesunate-mefloquine combination therapy given for 2 and 3 days at the same total dose for the treatment of uncomplicated falciparum malaria.

Condition or disease Intervention/treatment Phase
Plasmodium Falciparum Malaria Drug: Artesunate Drug: Mefloquine Not Applicable

Detailed Description:
This will be a randomized, open-label comparison of two versus three days artesunate-mefloquine treatment in patients with uncomplicated falciparum malaria. Primary endpoints will be 63-day parasitological cure rates in the 2 treatment groups. Secondary endpoints will be parasitological failure rates at each of the weekly follow-up visits to Day 56, occurence of treatment-emergent adverse events on days 0, 1 and 2, mefloquine blood concentrations on days 7, 14 and 28, and in vitro drug sensitivity profiles for parasite isolates as measured by inhibitory concentrations. Genotyping of parasites for known markers of drug resistence will be performed.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 13 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Efficacy of Artesunate-Mefloquine Combination Therapy for the Treatment of Uncomplicated Falciparum Malaria in Trat Province, Thailand
Study Start Date : September 2007
Actual Primary Completion Date : May 2008
Actual Study Completion Date : May 2012

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Malaria

Arm Intervention/treatment
Active Comparator: 1
2-day oral treatment with: Artesunate 6mg/kg at 0 and 24 hours Mefloquine 25 mg/kg total dose split into 2 doses of 15 mg/kg at 0 hours and and 10 mg/kg given 6-24 hours later Primaquine 0.5 mg/kg single dose at 24 hours
Drug: Artesunate
6 mg/kg/day for 2 days (total dose 12 mg/kg)

Drug: Mefloquine
15mg/kg at T=0 and 10 mg/kg 6-24 hours later

Active Comparator: 2
3 days oral treatment with: Artesunate 4 mg/kg/day for 3 days Mefloquine 8 mg/kg/day for 3 days Primaquine 0.5 mg/kg single dose at 24 hours
Drug: Artesunate
4 mg/kg/day for 3 days

Drug: Mefloquine
8 mg/kg daily for 3 days

Primary Outcome Measures :
  1. Determination of parasitological cure rate of directly observed antimalarial therapy [ Time Frame: 63 days from initiation of treatment ]

Secondary Outcome Measures :
  1. Parasitological cure rates [ Time Frame: Weekly to Day 56 ]
  2. Occurence of treatment-emergent adverse events [ Time Frame: 3 days ]
  3. In vitro drug sensitivity profile for individual parasite isolates [ Time Frame: Baseline ]
  4. Mefloquine whole blood concentrations [ Time Frame: 28 days ]

Information from the National Library of Medicine

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Ages Eligible for Study:   5 Years to 70 Years   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Age 5 to 70 years inclusive. If aged < 18 years the subject must have a parent or guardian in attendance.
  2. Asexual stages of P. falciparum parasites in a thick or thin blood film with no other visible plasmodial species.
  3. Willing to give informed consent. Parents or guardians of children and adolescents must agree to give informed consent. Assent is necessary in addition to parental informed consent.
  4. Able to tolerate oral therapy.
  5. Willing to attend follow-up appointments and undergo study procedures.

Exclusion Criteria:

  1. History of anti-malarial drug use within the past two weeks or mefloquine (MQ) use within 4 weeks.
  2. Bleeding tendency (by history or based on medical records).
  3. Severe/complicated malaria as determined by the investigator (coma or seizures, pulmonary edema, shock, renal failure, jaundice, severe anemia, spontaneous bleeding, hyperparasitemia (>5% RBCs infected), or prostration).
  4. History of allergy to or intolerance of study medications.
  5. Mixed malaria infection by Giemsa stain.
  6. Any other condition that in the opinion of the study investigator warrants parenteral antimalarial treatment.
  7. Pregnant woman or nursing mother

Information from the National Library of Medicine

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 identifier (NCT number): NCT01659281

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Vector Borne Diseases Control Units (VBDC, malaria clinics)
Borai, Khaosaming and Muang districts, Trat, Thailand, 23000
Sponsors and Collaborators
Armed Forces Research Institute of Medical Sciences, Thailand
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Principal Investigator: Wichai - Satimai, M.D., D.T.M. & H. Bureau of Vector-Borne Disease, Department of Disease Control, Ministry of Public Health
Principal Investigator: Mark M. Fukuda, M.D. Dept. of Immunology and Medicine, AFRIMS

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Responsible Party: Douglas Walsh, Dept Chief, Armed Forces Research Institute of Medical Sciences, Thailand Identifier: NCT01659281    
Other Study ID Numbers: WRAIR-1327
First Posted: August 7, 2012    Key Record Dates
Last Update Posted: August 7, 2012
Last Verified: August 2012
Keywords provided by Douglas Walsh, Armed Forces Research Institute of Medical Sciences, Thailand:
Plasmodium Falciparum
Uncomplicated Plasmodium Falciparum malaria
Additional relevant MeSH terms:
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Malaria, Falciparum
Protozoan Infections
Parasitic Diseases
Antiprotozoal Agents
Antiparasitic Agents
Anti-Infective Agents
Antineoplastic Agents
Antiviral Agents
Antiplatyhelmintic Agents