Merozoite Surface Protein 3 (MSP3)
The conserved Merozoite Surface Protein-3 of the parasite P. falciparum (MSP3) has been identified as a target of a protective immune response against malaria in humans, particularly via biologically active cytophilic antibodies.
To evaluate the safety and immunogenicity of increasing doses (10, 20, 30, and 100 µg) of a long synthetic peptide covering the 186-271 region of MSP3 (MSP3-LSP), when injected in the presence of Montanide ISA 720 or Alum as adjuvants in an open randomised phase I clinical trial.
The MSP3 project was received in response to European Malaria Vaccine Initiative's (now European Vaccine Initiative) call in 1998.
A contract was signed in 2000 for the pharmaceutical development of MSP3 and GLUtamate Rich Protein (GLURP) as Long Synthetic Peptides at Biopôle, Lausanne with Sedac Therapeutics, Lille.
A contract was signed in 2001 with the University of Lausanne for a Phase I clinical trial, sponsored by European Malaria Vaccine Initiative (now European Vaccine Initiative):
Assessment of the Safety of a Long Synthetic Peptide derived from MSP3, aPlasmodium falciparum Merozoite Surface Antigen targeted by Biologically Active Human Antibodies: An Open, Randomized, Two Adjuvants, Three Doses Safety and Immunogenicity Phase I Clinical Trial.
A paper has been published in Infection and Immunity, December 2005, vol. 73, no.12 8017-8026.
MSP3 - Burkina Faso
The clinical development of MSP3 continued in Burkina Faso, and a contract was signed in 2003 with Centre National de Recherche et de Formation sur le Paludisme (CNRFP) for a Phase I clinical trial sponsored by the African Malaria Network Trust (AMANET). the Principal Investigator was Sodiomon Bienvenu Sirima:
Safety and immunogenicity of MSP3 long synthetic peptide candidate malaria vaccine in Burkinabé healthy male adult: a single blind randomised controlled trial.
A paper has been published in Vaccine 2007 Mar 30;25(14):2723-32 (MSP3-LSP).
A further clinical trial was conducted in 2006 at CNRFP with the same Principal Investigator and also with AMANET as sponsor:
Evaluation of the safety and reactogenicity of Plasmodium falciparum Merozoite Surface Protein-3 Long synthetic peptide in children in Burkina Faso: A randomised controlled age de-escalation trial.