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Trial registered on ANZCTR

Registration number
Ethics application status
Date submitted
Date registered
Date last updated
Type of registration
Retrospectively registered

Titles & IDs
Public title
Therapeutic efficacy studies (TES) of antimalarials in Tanintharyi Region and Kayin State, Myanmar
Scientific title
Efficacy and safety of chloroquine for Plasmodium vivax in Kawthaung –Mawhtaung, Tanintharyi Region and Kyainseikkyi-Myawaddy, Kayin State in Myanmar.
Secondary ID [1] 295758 0
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Malaria 309157 0
Fever 309158 0
Headache 309373 0
Anaemia 309375 0
Condition category
Condition code
Infection 308239 308239 0 0
Other infectious diseases

Study type
Description of intervention(s) / exposure
Treating malaria patients with chloroquine in standard dose and course described in Malaria Manual for private the general practice.
Chloroquine tablets containing 250 mg chloroquine phosphate over three days will be given orally (10mg/kg/day on the first two days and 5 mg/kg on the 3rd day) (total dose 25mg base/kg) as the treatment of choice for P. vivax infection and for radical curative treatment with primaquine oral tablet (0.25mg base/kg/day for 14 days). If there is mild G6PD deficiency then 0.75mg/kg is given once weekly for 8 weeks.
To monitor adherence, fist dose of treatment was given directly observed by Field team leader, usually medical officer, then following doses by malaria volunteers. Empty blistered cards were recollected.
The trial objective is to monitor the efficacy of CQ, but primaquine is given to kill liver stage hypnozoites to prevent relapse and also to block transmission of vivax malaria to other.
Intervention code [1] 312089 0
Treatment: Drugs
Comparator / control treatment
No control group
Control group

Primary outcome [1] 307029 0
Therapeutic efficacy of chloroquine in Plasmodium vivax in terms of either treatment success or failure after following the patients parasitologically or clinically for 28 days.
Monitoring procedures included checking presence of jaundice, measurement of hemoglobin, taking body temperature, collecting capillary blood samples for malaria parasite by rapid test and microscopy.
Treatment outcomes are categorized according to WHO as follow;
Early treatment failure
• danger signs or severe malaria on day 1, 2 or 3 in the presence of parasitaemia;
• parasitaemia on day 2 higher than on day 0, irrespective of axillary temperature;
• parasitaemia on day 3 with axillary temperature equal to or greater than 37.5 ºC;
• parasitaemia on day 3 greater than or equal to 25% of count on day 0.
Late treatment failure
Late clinical failure
• danger signs or severe malaria in the presence of parasitaemia on any day between day 4 and day 28 in patients who did not previously meet any of the criteria of early treatment failure;
• presence of parasitaemia on any day between day 4 and day 28 with axillary temperature equal to or less than 37.5 ºC in patients who did not previously meet any of the criteria of early treatment failure
Late parasitological failure
• presence of parasitaemia on any day between day 7 and day 28 with axillary temperature less than 37.5 ºC in patients who did not previously meet any of the criteria of early treatment failure or late clinical failure
Adequate clinical and parasitological response
• absence of parasitaemia on day 28, irrespective of axillary temperature, in patients who did not previously meet any of the criteria of early treatment failure, late clinical failure or late parasitological failure
Timepoint [1] 307029 0
At the end of follow up 28 days (follow up visits on day 3, day 7, day 14, day 21, day 28),
Secondary outcome [1] 350427 0
Safety of chloroquine in Plasmodium vivax.
Safety will be assessed by recording the nature and incidence of adverse events and serious adverse events. Adverse events will be assessed by direct questioning. An adverse event is defined as any unfavourable, unintended sign, symptom, syndrome or disease that develops or worsens with the use of a medicinal product, regardless of whether it is related to the medicinal product. All adverse events must be recorded on the case report form.
A serious adverse event is defined as any untoward medical occurrence that at any dose:
• results in death, is life threatening;
• requires hospitalization or prolongation of hospitalization;
• results in a persistent or significant disability or incapacity; or
• is a congenital anomaly or birth defect.
‘Life-threatening’ means that the person was at immediate risk for death; it does not refer to an adverse event that might have caused death if it were more severe. ‘Persistent or significant disability or incapacity’ means that a person’s ability to carry out normal life functions is substantially disrupted.
All serious adverse events occurring during the study must be recorded and reported by the principal investigator to the sponsor or its designee, and to WHO ( regardless of whether the principal investigator considers the events to be related to the investigated medicine.
Timepoint [1] 350427 0
Through out the follow up 28 days, occurrence of adverse events of severe adverse events will be monitored and the frequency and nature of adverse events will be reported.

Key inclusion criteria
• patients aged 6 year and above
• mono-infection with P. vivax detected by microscopy (parasitaemia > 250/µl asexual forms);
• presence of axillary temperature greater than or equal to 37.5 °C or history of fever during the past 24 h;
• ability to swallow oral medication;
• ability and willingness to comply with the study protocol for the duration of the study and to comply with the study visit schedule;
• informed consent from the patient or from a parent or guardian in the case of children aged less than age of majority;
• informed assent from any minor participant aged from 12 to age of majority years; and
• consent for pregnancy testing from female of child-bearing age(defined as age > 17 years and sexually active).
Minimum age
6 Years
Maximum age
No limit
Both males and females
Can healthy volunteers participate?
Key exclusion criteria
• presence signs of severe falciparum malaria according to the definitions of WHO
• mixed or mono-infection with another Plasmodium species detected by microscopy;
• female aged from 12 and 17 years;
• Body weight under 20 kg;
• 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 breastfeeding; and
• unable to or unwilling to take pregnancy test or to use contraception for women of child-bearing age(defined as age > 12 years and sexually active).

Study design
Purpose of the study
Allocation to intervention
Non-randomised trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?

Intervention assignment
Single group
Other design features
Type of endpoint(s)
Statistical methods / analysis

Recruitment status
Stopped early
Data analysis
Data collected is being analysed
Reason for early stopping/withdrawal
Other reasons/comments
Other reasons
Budgeting period is over.
Date of first participant enrolment
Date of last participant enrolment
Date of last data collection
Sample size
Accrual to date
Recruitment outside Australia
Country [1] 20735 0
State/province [1] 20735 0
Tanintharyi Region & Kayin State

Funding & Sponsors
Funding source category [1] 300348 0
Name [1] 300348 0
Address [1] 300348 0
Global Procurement
and Logistics
Block 3510
Jalan Teknokrat 6
63000 Cyberjaya
Country [1] 300348 0
Primary sponsor type
Government body
Ministry of Health and Sports
Office Number (4), Nay Pyi Taw, Ministry of Health and Sports Office
Secondary sponsor category [1] 299968 0
Name [1] 299968 0
Address [1] 299968 0
Country [1] 299968 0

Ethics approval
Ethics application status
Ethics committee name [1] 301164 0
Ethics Review Committee, Department of Medical Research, Ministry of Health & Sports
Ethics committee address [1] 301164 0
No (5), Ziwaka Road, Dagon Township 11191, Yangon
Ethics committee country [1] 301164 0
Date submitted for ethics approval [1] 301164 0
Approval date [1] 301164 0
Ethics approval number [1] 301164 0

Brief summary
Title: Efficacy and safety of chloroquine for Plasmodium vivax in Kawthaung – Mawhtaung, Tanintharyi Region and Kyainseikkyi-Myawaddy, Kayin State in Myanmar
To assess the efficacy of chloroquine against P. vivax malaria to support updating of the national policy. The study will be conducted from May to December 2017.It is a one arm prospective evaluation of clinical and parasitological responses to directly observed treatment for uncomplicated malaria. People with uncomplicated malaria who meet the study inclusion criteria will be enrolled, treated on site with chloroquine for uncomplicated P. vivax malaria and monitored for 28 days.
Febrile patients with uncomplicated P. vivax malaria attending the study clinic, who are aged 6 years and above, both sexes will be included. Total 70 patients for each specie at each study site. Clinical and parasitological parameters will be monitored over a 28 day follow-up , to evaluate the efficacy of chloroquine .

Trial website
Trial related presentations / publications
Public notes

Principal investigator
Name 86062 0
Address 86062 0
Department of Medical Research
No. 5, Ziwaka Road, Dagon Township,
Yangon 11191
Country 86062 0
Phone 86062 0
95 9 5169228
Fax 86062 0
95 1 251514
Email 86062 0
Contact person for public queries
Name 86063 0
Address 86063 0
Department of Medical Research
No. 5, Ziwaka Road, Dagon Township,
Yangon 11191
Country 86063 0
Phone 86063 0
95 9 5169228
Fax 86063 0
95 1 251514
Email 86063 0
Contact person for scientific queries
Name 86064 0
Dr Pascal Ringwald
Address 86064 0
20 Avenue Appia
1211 Geneva 27
Drug efficacy and Response,
Global Malaria Program,
WHO Head quarters,
Country 86064 0
Phone 86064 0
+ 41 22 7913469
Fax 86064 0
Email 86064 0

No data has been provided for results reporting
Summary results
Have study results been published in a peer-reviewed journal?
Other publications
Have study results been made publicly available in another format?
Results – basic reporting
Results – plain English summary