Artemisinin Resistance in Bangladesh

Malaria Clinical Trial

Official title:

Artemisinin Resistance in Bangladesh

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00639873
• Other study ID #: MUW # 83/2008
• Status: Completed
• Phase: N/A
• First received: March 14, 2008
• Last updated: August 22, 2013
• Start date: June 2008
• Est. completion date: November 2009

Study information

• Verified date: August 2013
• Source: Medical University of Vienna
• Contact: n/a
• Is FDA regulated: No
• Health authority: Switzerland: Ethikkommission
• Study type: Interventional

Clinical Trial Summary

A randomized, controlled clinical trial conducted in Southeastern Bangladesh using artesunate monotherapy to determine the baseline sensitivity of P. falciparum to artemisinins.

Description:

A total number of 100 volunteers with acute uncomplicated falciparum malaria will be randomly assigned one of 3 arms to be treated with artesunate monotherapy or quinine/doxycycline for 7 days at a ratio of 2:2:1. The study design will be based on the WHO recommendations for the 'Assessment and Monitoring of Antimalarial Drug Efficacy for the Treatment of Uncomplicated Falciparum Malaria' (WHO, 2003). Study participants will be otherwise healthy malaria patients aged 8 to 65 years with uncomplicated falciparum malaria recruited at the Bandarban Sadar Hospital, Bangladesh.

The artesunate will be administered orally (a single dose of 2 or 4 mg/kg/day) over a total duration of 7 days by directly observed therapy.

Patients will be admitted to the hospital for the duration of study drug administration or until all signs and symptoms of malaria have disappeared, whichever comes later. Thereafter they will be followed as outpatients until Day 42 with scheduled follow-up visits on Day 14, 28, 35, and 42.

In vitro drug sensitivity assays will be performed from samples on inclusion and in case of recrudescence. Drug levels will be measured on the first and last day of therapy.

Primary clinical outcome is cure (Adequate Clinical and Parasitological Response - ACPR) on Day 28 and 42. Secondary outcome measures are time until parasite, fever, and gametocyte clearance (PCT, FCT, and GCT). Parasite genotyping will be used to distinguish recrudescences from reinfections by PCR for patients in whom recrudescences cannot be fully excluded. Subjects will be monitored for clinical adverse events throughout the study duration.

Blood will be drawn on the day of admission (before initiating therapy) for in vitro drug sensitivity testing and for PCR (markers of drug resistance and to distinguish recrudescence from reinfection by genotyping). Malaria smears will be prepared twice daily until parasite clearance and on Days 7, 14, 21, 28, 35, and 42 or whenever symptoms consistent with malaria appear. Plasma samples for determining drug levels will be obtained on the first and last day of therapy. Study participation for each individual will be 42 days.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 126
• Est. completion date: November 2009
• Est. primary completion date: November 2009
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 8 Years to 65 Years

Eligibility

Inclusion Criteria:

1. Acute symptomatic falciparum malaria infection as determined by malaria smear with a parasite density of 1,000 to 100,000 asexual parasites/uL as determined on the screening smear with fever (defined as =37.5C), or reported history of fever within the last 48 hours.

2. Age: 8-65 years old

3. All females between the age of 12 and 50 are required to have a negative human chorionic gonadotropin (hCG) pregnancy test (urine). All females of childbearing potential (not surgically sterile, or less than two years menopausal) are required to use an acceptable method of contraception throughout the study

4. Written informed consent obtained

5. Willing to stay under close medical supervision for the study duration of 42 days

6. Otherwise healthy outpatients

Exclusion Criteria:

1. Pregnant women, nursing mothers, or women of childbearing potential who do not use an acceptable method of contraception

2. Mixed malaria infection on admission by malaria smear

3. A previous history of intolerance or hypersensitivity to the study drugs or to drugs with similar chemical structures

4. Malaria drug therapy administered in the past 30 days by history

5. History of significant cardiovascular, liver or renal functional abnormality or any other clinically significant illness, which in the opinion of the investigator would place them at increased risk.

6. Symptoms of severe vomiting (no food or inability to take food during the previous 8 hours).

7. Signs or symptoms of severe malaria (as defined by WHO 2000)

8. Unable and/or unlikely to comprehend and/or follow the protocol

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Malaria

Intervention

Drug:
• Artesunate
2 or 4 mg/kg/day for 7 days
• quinine-doxycycline
quinine-doxycycline for 7 days

Locations

Country	Name	City	State
Bangladesh	Bandarban Sadar Hospital	Bandarban Sadar	Bandarban

Sponsors (3)

Lead Sponsor	Collaborator
Medical University of Vienna	International Centre for Diarrhoeal Disease Research, Bangladesh, World Health Organization

Country where clinical trial is conducted

Bangladesh, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Cure	Cure is defined as adequate clinical and parasitological response (ACPR) as opposed to early treatment failure / late treatment failure	42 days	No
Secondary	Treatment response	Treatment response parameters: parasite, fever, and gametocyte clearance	42 Days	No

External Links

•   ICDDR,B
•   MARIB - Malaria Research Initiative Bandarban
•   Medical University of Vienna