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Spitting instead of pricking

International research project PROMISE aims to revolutionise malaria diagnosis

Malaria remains one of the most dangerous infectious diseases. According to estimates by the World Health Organization (WHO), around 263 million people fell ill in 2023 alone, and almost 620,000 died; most of them were children under the age of five in Africa. Four countries, including Nigeria and the Democratic Republic of Congo, account for half of the global disease burden.

Photo of five people in the laboratory. They are smiling warmly at the camera.
©BNITM

Malaria remains one of the most dangerous infectious diseases. According to estimates by the World Health Organization (WHO), around 263 million people fell ill in 2023 alone, and almost 620,000 died; most of them were children under the age of five in Africa. Four countries, including Nigeria and the Democratic Republic of Congo, account for half of the global disease burden.

Why many people do not get tested

Although early diagnosis can save lives, many people shy away from going to the testing station. Blood sampling is unpleasant, especially for children, and is sometimes taboo or simply not possible when the availability of medical staff is limited. In addition, even the latest rapid blood-based tests do not always provide reliable results, for example in the case of rarer malaria pathogens or genetic variants of the parasite. PROMISE aims to address this issue with a test that does not require a needle but is highly accurate.

A KCCR employee takes blood from a toddler's fingertip to test for malaria.
Testing for malaria infections at a children's outpatient clinic in Ghana   ©Emmanuel Baah

Malaria has traditionally been diagnosed by detecting pathogen components in the blood. The new diagnostic system relies on saliva. The central biomarker is an enzyme produced by the malaria pathogen that can be reliably detected even at low parasite loads – with high specificity and sensitivity. The test format is based on a lateral flow assay (LFA), a rapid paper strip test similar to a pregnancy test.

From laboratory device to practical rapid test

The technology was developed by the Department of Molecular Biology and Genetics (AUMBG) at Aarhus University in Denmark and is now transferred to market.

Implementation involves several steps: optimising the enzyme detection technology, developing an easy-to-use saliva sampling system and producing stable, storable test reagents. The test will be clinically tested in several countries, including Gabon, Benin and South Korea. In the future, it will also be used in other malaria-endemic areas.

"Our vision is a universally applicable rapid test that works for all age groups and all types of malaria – without the need for blood. This would enable us to revolutionise diagnostics even in remote regions," says Prof. Dr. Ghyslain Mombo-Ngoma, project coordinator and working group leader at BNITM as well as head of drug research at the Centre de Recherches Médicales de Lambaréné (CERMEL) in Gabon.

Portrait photo of Gabonese researcher Ghyslain Mombo-Ngoma: he is bald, has a short full beard and is wearing a dark blue African shirt, smiling at the camera.
Prof. Dr Ghyslain Mombo-Ngoma   ©BNITM | Julia Rauner

Enabling access, improving care

The project is funded by the RIGHT Foundation (Research Investment for Global Health Technology) in South Korea with around 2.5 million euros. The research partners are committed to making the future diagnostic product affordable and widely available, especially in countries with a high disease burden.

The aim of the clinical trials is to create the necessary conditions for the approval by the Europe-based authorities in charge and a recommendation by the World Health Organization (WHO). In addition, a laboratory test is planned for research institutions, which will allow the results of the rapid test to be precisely verified and compared for quality assurance purposes. This laboratory test will be available worldwide, also at an affordable cost.

Partner countries

Gabon, Germany, Denmark, Switzerland, South Korea

Partner institutions

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