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Cost-effectiveness of interventions to support the introduction of malaria rapid diagnostic tests in Cameroon

Start date: 1 Oct 2008

Scientific title: A cost-effectiveness analysis of provider interventions to improve health worker practice in providing treatment for uncomplicated malaria in Cameroon

Latest on this research

We have found that interactive training programmes for health workers reduced malaria over diagnosis by half, helping to prevent the wastage of antimalarials on patients who don't need them.  

The study compared the use of RDTs when packaged with either a basic or a comprehensive training programme for clinicians.  Our results showed that those undertaking the comprehensive programme were much less likely to overuse antimalarials. Only 31% of patients in this group received a malaria drug that they didn’t need, compared to 52% in the group undertaking the basic programme and 84% in the control group which represented the standard practice.

The more effective training package lasted three days and was designed to change prescribing practices. In addition to the content of the basic package, which only provided conventional training on RDTs, malaria diagnosis and treatment, the comprehensive package had smaller groups and longer discussions about clinical guidelines, real-life scenarios and effective communication with patients. It was also more interactive, using card games, drama and problem solving exercises. These training materials are available through the ACT Consortium along with the study protocol and papers that describe problems in malaria case management in Cameroon identified in formative research for this study.

Scroll down to find all resources and peer-reviewed publications related to this study, including the training manuals used in Cameroon.

What did we know before this research?

Rapid diagnostic tests (RDT) are a relatively new innovation and can quickly confirm if someone has malaria. These tests are easy to use and do not require laboratory equipment or specialist skills.

Testing patients before prescribing medication is important, and should ensure patients receive the most appropriate treatment. This is important because unnecessary and inappropriate treatment has  costs –incurred by patients, but also governments and donors working to control malaria. The cost-effectiveness of rapid diagnostic tests critically depends on health workers prescribing treatment based on the test result.

Background research on malaria case management in Cameroon found that malaria testing was available but under-used, and many health workers prefer to prescribe an antimalarial even when the malaria test has a negative result.

What does this study add?

We designed a cluster randomised trial to compare the introduction of malaria rapid diagnostic tests (RDT) accompanied by either basic training or enhanced training with routine care (in which microscopy was available to identify the presence of malaria parasites in the blood).

Working with the Ministry of Health, one-day basic and three-day enhanced training courses were designed to support the roll-out of malaria rapid diagnostic tests. These training courses are suitable for implementation on a large-scale.

Both training courses show health workers how to use the rapid diagnostic tests and explain which antimalarials are used to treat confirmed cases of uncomplicated malaria. The enhanced course contains additional activities and uses interactive methods – such as drama, games and problem solving exercises – to encourage health workers to use malaria testing and prescribe treatment based on the test results.

This is the first study of a randomised controlled trial that compares different interventions to support the uptake of rapid diagnostic tests and adherence to their results in Cameroon.

The REACT studies in Cameroon and Nigeria will provide an important basis for comparison across different types of health care providers (both private and public), different health care delivery and financing systems, as well as different treatment seeking practices by ethnic and socioeconomic groups. Perhaps most interesting, these intervention trials will allow comparison between sites where currently microscopy testing is widely available (Cameroon) and where the use of any form of malaria diagnostic testing is extremely limited (Nigeria). 

The research team

Principal Investigators

  • Dr. Virginia Wiseman, London School of Hygiene & Tropical Medicine

Email: virginia.wiseman@lshtm.ac.uk

  • Dr Wilfred Mbacham, University of Yaoundé, Cameroon

 

Other Investigators

Mrs Lindsay Mangham-Jefferies, London School of Hygiene & Tropical Medicine

Dr Obinna Onwujekwe, College of Medicine, University of Nigeria

Ms Bonnie Cundill, London School of Hygiene & Tropical Medicine

Dr Clare Chandler, London School of Hygiene & Tropical Medicine

Ms Olivia Achonduh, University of Yaoundé

Akindeh Mbuh Nji, University of Yaoundé

Research Themes


Related Publications

Medicine sellers’ perspectives on their role in providing health care in North-West Cameroon: a qualitative study

R Hughes, CR Chandler, LJ Mangham-Jefferies and W Mbacham  |  Published
Health Policy and Planning

‘As a clinician, you are not managing lab results, you are managing the patient’: How the enactment of malaria at health facilities in Cameroon compares with new WHO guidelines for the use of malaria tests

Clare I.R. Chandler, Lindsay Manghama, Abanda Ngu Njei, Olivia Achonduh, Wilfred F. Mbacham, Virginia Wiseman  |  Published
Social Science and Medicine

A cost-effectiveness analysis of provider interventions to improve health worker practice in providing treatment for uncomplicated malaria in Cameroon: a study protocol for a randomized controlled trial

Virginia Wiseman, Lindsay J Mangham, Bonnie Cundill, Olivia A Achonduh, Akindeh Mbuh Nji, Abanda Ngu Njei, Clare Chandler and Wilfred F Mbacham  |  Published
Trials Journal

Malaria prevalence and treatment of febrile patients at health facilities and medicine retailers in Cameroon

Lindsay J. Mangham, Bonnie Cundill, Olivia A. Achonduh, Joel N. Ambebila, Albertine K. Lele, Theresia N. Metoh, Sarah N. Ndive, Ignatius C. Ndong, Rachel L. Nguela, Akindeh M. Nji, Barnabas Orang-Ojong, Joelle Pamen-Ngako, Virginia Wiseman and Wilfred F.  |  Published
Tropical Medicine and International Health

What determines providers' stated preference for the treatment of uncomplicated malaria?

Lindsay Mangham-Jefferies, Kara Hanson, Wilfred Mbacham, Obinna Onwujekwe, Virginia Wiseman  |  Published
Social Science & Medicine

Basic or enhanced clinician training to improve adherence to malaria treatment guidelines: a cluster-randomised trial in two areas of Cameroon

Wilfred F Mbacham, Lindsay Mangham-Jefferies, Bonnie Cundill, Olivia A Achonduh, Clare I R Chandler, Joel N Ambebila, Armand Nkwescheu, Dorothy Forsah-Achu, Victor Ndiforchu, Odile Tchekountouo, Mbuh Akindeh-Nji, Pierre Ongolo-Zogo, Dr Virginia Wiseman  |  Published
The Lancet Global Health

Designing and implementing interventions to change clinicians’ practice in the management of uncomplicated malaria: lessons from Cameroon

Olivia A Achonduh, Wilfred F Mbacham, Lindsay Mangham-Jefferies, Bonnie Cundill, Clare Chandler, Joelle Pamen-Ngako, Albertine K Lele, Ignatius C Ndong, Sarah N Ndive, Joel N Ambebila, Barnabas B Orang-Ojong, Theresia N Metoh, Mbuh Akindeh-Nji, Virgini  |  Published
Malaria Journal

The practice of 'doing' evaluation: lessons learned from nine complex intervention trials in action

Joanna Reynolds, Deborah DiLiberto, Lindsay Mangham-Jefferies, Evelyn K Ansah, Sham Lal, Hilda Mbakilwa, Katia Bruxvoort, Jayne Webster, Lasse S Vestergaard, Shunmay Yeung, Toby Leslie, Eleanor Hutchinson, Hugh Reyburn, David G Lalloo, David Schellenberg  |  Published
Implementation Science

Economic evaluation of a cluster randomized trial of interventions to improve health workers’ practice in diagnosing and treating uncomplicated Malaria in Cameroon

Lindsay Mangham-Jefferies, Virginia Wiseman, Olivia A. Achonduh, Thomas L. Drake, Bonnie Cundill, Obinna Onwujekwe, Wilfred Mbacham  |  Published
Value in Health

Mind the gap: Knowledge and practice of providers treating uncomplicated malaria at public and mission health facilities, pharmacies and drug stores in Cameroon and Nigeria

Lindsay Mangham-Jefferies, Kara Hanson, Wilfred Mbacham, Obinna Onwujekwe, Virginia Wiseman  |  Published
Health Policy and Planning

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