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Welcome to the Tropical Centre for Public Health Research

Phase III trial of two SARS-CoV-2 Adjuvanted Recombinant Protein Vaccines for prevention against COVID-19 in adults 18 years of age

January 9, 2019 | Completed Projects | Reading time: 6 min

SARS-CoV-2 Adjuvanted Recombinant Protein Vaccines

Investigators

Dr. Richard Sampong, Dr. Sandra Ofori, Dr. Eric Afram, Mrs. Christiana Akosua Anowuo, Ms. Mariama Alhassan Maiga

Background

The outbreak of COVID-19 in late 2019 has caused significant morbidity and mortality and disruption of socioeconomic activities all over the world. To date, there have been approximately 1,700 cases and close to 1,500 deaths in Ghana.

The pandemic exacerbated existing inequities in access to healthcare between and within countries with minimal access to COVID-19 vaccines in Low and Middle Income Countries, including Ghana. Against this backdrop, Sanofi Pasteur is developing two candidate vaccines for active immunization and prevention of SARS-CoV-2 infection and COVID-19 disease.

Objectives


This Phase III study will assess how well the study vaccines protect against infection and illness caused by the SARS-CoV-2 virus. It will also assess how safe the vaccines are and how well the body’s immune system is activated by the vaccines to fight SARS-CoV-2 infection.

Methodology


The study is recruiting adults aged 18 years and above and randomly assigning them in a random manner to receive the study vaccine or the placebo. Following informed consent and after an initial assessment for eligibility, participants receive two doses of the vaccine or placebo three weeks apart and are followed up over about 13 months to assess the occurrence of COVID-19-like illness. The study team also assess participants for any illnesses or injuries they may experience in the course of the study. Nasopharyngeal and blood samples are collected at planned visits to help make these assessments.

Key Findings


Interim analysis showed that the vaccine was highly protective against severe COVID-19 and moderately protective against moderate disease. At the same time, the vaccine was found to have an acceptable safety profile.

Expected Outcomes


The outcomes include efficacy, safety and immunogenicity of the candidate vaccines administered as a two-dose primary vaccination series with or without a booster.

Funders


Sanofi Pasteur Inc.

Collaborators

Tropical Centre for Public Health Research and Navrongo Health Research Centre