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Dose Escalation, Randomized Controlled Trial to Evaluate the Safety, Immunogenicity and Efficacy of Intravenously Administered Attenuated Plasmodium Falciparum Sporozoite Vaccine (PfSPZ Vaccine) in Tanzanian Adults

Malaria Clinical Trial

Official title:
Phase 1, Dose Escalation, Randomized Controlled Trial to Evaluate the Safety, Immunogenicity and Efficacy of Intravenously Administered Attenuated Plasmodium Falciparum Sporozoite Vaccine (PfSPZ Vaccine) in Tanzanian Adults

Clinical Trial Summary

This trial will evaluate whether relatively non-immune populations in endemic countries can effectively generate significant cellular and humoral immune responses that confer protection against P. falciparum infection after inoculation of aseptic, purified, vialed, metabolically active, non-replicating (live, radiation attenuated) Plasmodium falciparum sporozoites (PfSPZ Vaccine) administered intravenously (IV).

Clinical Trial Description

This is a single center, Phase 1, dose escalating, randomized, double blind, controlled trial. Seventy-three healthy male volunteers, aged 18 to 35 years will be recruited. The study will have 5 study groups that will include 49 volunteers who will be intravenously injected with PfSPZ Vaccine, 8 control volunteers who will receive normal saline and 16 additional control volunteers who will be recruited at the time of controlled human malaria infection (CHMI) at 3 and 24 weeks. The control volunteers will help better assess the occurrence of AEs compared to background disease patterns that occur in this tropical area, and the performance of the vaccine. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Prevention

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02132299
Study type Interventional
Source Sanaria Inc.
Contact
Status Completed
Phase Phase 1
Start date April 2014
Completion date August 2015
View Details
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