Abstract: The present invention is related to field of medicine, particularly to the development of pharmaceutical formulations containing NMA0939 protein. Formulations described in this invention are able to confer protection against different diseases caused or not by pathogenic agents. NMA0939 protein was identified as a Neisseria meningitidis outer membrane vesicle component, and it was obtained through recombinant DNA technology being its immunogenicity and protective activity evaluated in animal models. Due to the high level of conservation the NMA0939 coding gene has shown, pharmaceutical compositions containing this protein have a high value as inducers of a cross-reactive immune response. Formulations presented in this invention are applicable to the field of human medicine.