New malaria vaccine combo shows promise in early trial
NCT ID NCT06507605
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This Phase 1 trial tested a new malaria vaccine that combines two different vaccine components (Pfs230D1 and R21) with an immune-boosting adjuvant called Matrix-M. The study involved 240 healthy adults aged 18 to 50 in Africa. The main goal was to check the vaccine's safety and how well it triggers an immune response, with the hope of eventually preventing both malaria infection and its spread.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Malaria vaccine (Pfs230D1 and R21 combination with Matrix-M adjuvant)
- What this could lead to
- If successful, this could lead to a more effective malaria vaccine that blocks both infection and transmission.
- What could go wrong
- This is an early Phase 1 trial focused on safety, not yet on preventing malaria. The vaccine may not produce strong enough immunity or could cause side effects.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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240 people
The number who actually took part.
- Started
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Aug 2024
- Finished
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Jan 2026
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 50 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Age: 18 to 50 years old. 2. Provides written informed consent. 3. Able to understand and comply with planned study procedures and be available for the duration of the trial. 4. In good general health and without clinically significant medical history in the opinion of the investigator. 5. Females of childbearing potential must be willing to use reliable contraception from 21 days prior to Study Day 1 and until 1 month after the last vaccination. Exclusion Criteria: 1. Pregnant and breastfeeding females. 2. Hemoglobin, white blood cell (WBC), absolute neutrophil count, or platelet levels outside the local laboratory-defined reference ranges. 3. Alanine transaminase (ALT) or creatinine (Cr) level above the local laboratory-defined upper limit of reference range. 4. Infected with HIV, hepatitis B, hepatitis C. 5. Evidence of clinically significant neurologic, cardiac, pulmonary, hepatic, endocrine, rheumatologic, autoimmune, hematological, oncologic, or renal disease by history, physical examination, and/or laboratory studies. 6. Current or planned participation in an investigational product study until the time period of the last required study visit under this protocol. 7. Medical, occupational, or family problems as a result of alcohol or illicit drug use during the past 12 months. 8. History of a severe allergic reaction or anaphylaxis. 9. Known: Severe asthma, Autoimmune or antibody-mediated disease, Immunodeficiency, Seizure disorder, Asplenia or functional asplenia, Use of chronic oral or intravenous corticosteroids (excluding topical or nasal), Sickle cell disease. 10. Any other condition that in the opinion of the investigator might jeopardize the safety or rights of a subject participating in the trial, interfere with the evaluation of the study objectives, or might render the subject unable to comply with the protocol.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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University of Science, Technique and Technology of Bamako (Usttb)
Bamako, Mali
More trials for these conditions
Other studies related to the condition(s) this trial covers.