- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01716260
Safety and Efficacy of Chloroquine and Primaquine for Vivax Malaria in Bhutan
Parasitic Clearance and Recurrence Rates Among Patients With Vivax Malaria on Chloroquine and Primaquine Therapy
This research is intended to study the efficacy of chloroquine (CQ) and primaquine (PQ) for Plasmodium vivax (P.vivax) infection, and also to study the recurrence rate among patients with P.vivax malaria on standard doses of CQ and PQ. For this study, PQ will be withheld for 28 days so as to study the efficacy of CQ alone.
This study will assess whether CQ is still effective against P.vivax or whether there are resistant P.vivax strains in Bhutan.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
This study aims to assess the efficacy of Chloroquine alone, withholding Primaquine until day 28. Parasitic clearance and recurrence rates will be recorded. Patients whose blood stage of parasites are not cleared with the standard dose of Chloroquine, or any recurrences before day 28, will be treated with second line treatment (ACT).
The patients blood level of Chloroquine (drug concentration) at the time of a recrudescent infection will de determined to assess whether that could be due to resistance, or due to low level of Chloroquine.
Any relapses occurring after day 28 when not receiving Primaquine, or after completion of Primaquine dosage for a total of 14 days (from day 29 to 42), will be treated with repeat doses of the initial treatment. The recurrence rates will be recorded so as to develop the next phase of the study where the two different doses of Primaquine (high dose vs. low dose) will be compared.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Gelephu, Bhutan
- Vector Diseases Control Program
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Patients with P.vivax infections will be recruited from 6 sentinel sites and will be recruited for the study after informed consent is received.
An amendment has been approved to extend the study to 12 sites.
Description
Inclusion Criteria:
- >12 months of age
- infection with P.vivax parasitaemia monoinfection
- presence of axillary temperature >37.5 degrees or history of fever during the past 24 hours
- ability to swallow oral medication
- ability and willingness to comply with the study protocol for the duration of the study, including 12 months follow up
- informed consent from the patient/parent/guardian in the case of children
Exclusion Criteria:
- Presence of general danger signs in children aged under 5 years or signs of severe malaria according to the definitions of WHO
- Presence of severe malnutrition (defined as a child whose growth standard is below -3 z-score, has symmetrical oedema involving at least the feet or has a mid-upper arm circumference < 110 mm);
- History of haemolysis or severe anaemia
- Acute anaemia <7 mg/dL
- Presence of febrile conditions due to diseases other than malaria (e.g. measles, acute lower respiratory tract infection, severe diarrhoea with dehydration) or other known underlying chronic or severe diseases (e.g. cardiac, renal and hepatic diseases, HIV/AIDS);
- Regular medication, which may interfere with antimalarial pharmacokinetics
- History of hypersensitivity reactions or contraindications to any of the medicine(s) being tested or used as alternative treatment(s)
- a positive pregnancy test or lactating
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Chloroquine and Primaquine
Chloroquine (CQ)10mg/kg for day 1, 2 and 5mg/kg for day 3 Primaquine (PQ)0.25mg/kg/day
for 14 days
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Chloroquine efficacy for P.vivax infections in Bhutan.
Time Frame: 28 days
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The purpose is to study the efficacy of Chloroquine alone by recording recrudescent rates and parasitic clearance in P.vivax patients who are given a standard dose of Chloroquine treatment.
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28 days
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
To study the efficacy of Primaquine.
Time Frame: Patients with recurrence after day 28 will be recorded.
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In this study, Primaquine will be administered on day 28, and any relapse will be recorded to study relapse rates over a 12 month period.
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Patients with recurrence after day 28 will be recorded.
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Other Outcome Measures
Outcome Measure |
Time Frame |
---|---|
To assess the feasibility of a 12 month follow-up of patients with vivax malaria in Bhutan.
Time Frame: 12 months
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12 months
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To assess the safety of the currently prescribed CQ and PQ regimens in Bhutan.
Time Frame: 12 months
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12 months
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Collaborators and Investigators
Collaborators
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- Bhutan_APMEN_CQ PQ_2013
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Vivax Malaria
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University of California, San FranciscoCenters for Disease Control and Prevention; University of Massachusetts, Amherst and other collaboratorsRecruitingPlasmodium Falciparum Malaria | Plasmodium Vivax MalariaLao People's Democratic Republic
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Medicines for Malaria VentureAsociacion Civil Selva AmazonicaCompletedPlasmodium Falciparum Malaria | Plasmodium Vivax MalariaPeru
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University of OxfordMenzies School of Health ResearchCompletedUncomplicated Vivax MalariaAfghanistan, Ethiopia, Indonesia, Vietnam
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Centers for Disease Control and PreventionTerminated
-
Menzies School of Health ResearchMinistry of Health, MalaysiaUnknownPlasmodium Vivax Malaria Without ComplicationMalaysia
-
Menzies School of Health ResearchInternational Centre for Diarrhoeal Disease Research, Bangladesh; Addis Ababa... and other collaboratorsCompletedMalaria | Vivax Malaria | Falciparum MalariaEthiopia, Bangladesh, Indonesia
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Menzies School of Health ResearchAga Khan University; University of Melbourne; Universitas Sumatera Utara; Ethiopian... and other collaboratorsRecruitingVivax Malaria | Malaria, Vivax | Plasmodium Vivax | Malaria RelapseCambodia, Ethiopia, Indonesia, Pakistan
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Menzies School of Health ResearchUniversity of Melbourne; Curtin University; Addis Ababa University; Fundação de... and other collaboratorsNot yet recruitingVivax MalariaBrazil, Ethiopia, Indonesia, Papua New Guinea
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University of OxfordCompleted
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London School of Hygiene and Tropical MedicineHealthNet TPOCompletedMalaria | Vivax MalariaPakistan
Clinical Trials on Primaquine
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University of Mississippi, OxfordCompletedMalariaUnited States
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University of Mississippi, OxfordCompletedMalaria | Glucose 6 Phosphate Dehydrogenase DeficiencyUnited States
-
University of California, San FranciscoBill and Melinda Gates Foundation; Wellcome Trust; Malaria Research and Training... and other collaboratorsCompleted
-
Menzies School of Health ResearchTribhuvan University, NepalActive, not recruitingMalaria | Malaria, Vivax | Malaria,FalciparumNepal
-
PATHMahidol Oxford Tropical Medicine Research UnitTerminated
-
University of California, San FranciscoPan American Health OrganizationWithdrawnMalaria, Vivax | Relapse
-
Menzies School of Health ResearchInternational Centre for Diarrhoeal Disease Research, Bangladesh; Addis Ababa... and other collaboratorsCompletedMalaria | Vivax Malaria | Falciparum MalariaEthiopia, Bangladesh, Indonesia
-
Menzies School of Health ResearchArmauer Hansen Research Institute, EthiopiaWithdrawn
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Ulrika MorrisUppsala University; University of California, San Francisco; RTI International; Mahidol Oxford Tropical Medicine Research Unit and other collaboratorsCompletedMalaria | Plasmodium InfectionsTanzania
-
Menzies School of Health ResearchWorld Health Organization; Walter and Eliza Hall Institute of Medical Research and other collaboratorsUnknown