First vaccine to protect against Ebola

EMAEMA's human medicines committee (CHMP) has recommended granting a conditional marketing authorisation in the European Union for Ervebo (rVSVΔG-ZEBOV-GP), the first vaccine for active immunisation of individuals aged 18 years and older at risk of infection with the Ebola virus.

"This is an important step towards relieving the burden of this deadly disease," said Guido Rasi, EMA's Executive Director. "The CHMP's recommendation is the result of many years of collaborative global efforts to find and develop new medicines and vaccines against Ebola. Public health authorities in countries affected by Ebola need safe and efficacious medicines to be able to respond effectively to outbreaks and save lives."

Ebola virus disease is a rare but severe illness caused by the Ebola virus. Death rates in patients who have contracted the disease have varied from 25% to 90% in past outbreaks. The largest outbreak to date occurred in West Africa in 2014-2016 with more than 11,000 deaths. The current outbreak in the Democratic Republic of Congo (DRC) which is caused by Ebola Zaire, has shown case fatality rates of approximately 67%. More than 3,000 people have been infected with the Ebola virus during the ongoing outbreak, which was declared a public health emergency of international concern by the World Health Organization (WHO) in July 2019.

Ervebo is a genetically engineered, replication-competent, attenuated live vaccine. Data from clinical trials and compassionate use programs have shown that Ervebo protects against Ebola virus disease in humans following a single dose administration.

The clinical development of Ervebo was initiated in response to the 2014-2016 Ebola outbreak in cooperation with public health stakeholders, including national institutes of health, ministries of health in countries such as Guinea and DRC, WHO, the US Centers for Disease Control and Prevention, the Public Health Agency of Canada, Médecins Sans Frontières and others. In the ongoing Ebola outbreak in DRC, the vaccine is being used under an Expanded Access Protocol or 'compassionate use' to protect people at highest risk of infection such as healthcare workers, or people who have come into contact with infected patients or contacts of contacts according to a ring vaccination strategy.

Ervebo has been tested in approximately 16,000 individuals involved in several clinical studies in Africa, Europe and the United States where it has been proven to be safe, immunogenic (i.e. able to make the immune system respond to the virus) and effective against the Zaire Ebola virus that circulated in West Africa in 2014-2016. Preliminary data suggest that it is effective in the current outbreak in DRC. Additional efficacy and safety data are being collected through the Expanded Access Protocol and should be included in post-marketing safety reports, which are continuously reviewed by EMA.

Ervebo was supported through EMA's PRIority MEdicines (PRIME) scheme, which provides early and enhanced scientific and regulatory support to medicines that have a particular potential to address patients' unmet medical needs. Ervebo was granted eligibility to PRIME in June 2016 for active immunisation against Ebola.

"EMA's positive opinion for the first vaccine against Ebola virus disease demonstrates the scientific expertise in the EU that can be mobilised to reduce the impact of deadly diseases like Ebola," said Harald Enzmann, Chair of the CHMP.

Currently, there are no therapies approved for Ebola. EMA is working together with regulatory authorities around the world to support WHO and to advise on possible pathways for the development, evaluation and approval of medicines and vaccines to fight Ebola. The Agency has collaborated with WHO and African national regulatory agencies during the review of Ervebo in order to speed up WHO prequalification and approval in countries where the vaccine is mostly needed. EMA representatives have also supported discussions with WHO and stakeholders on the design of clinical trials for investigational agents for the treatment of Ebola disease to gather robust evidence that could support future approvals.

Ervebo received a positive opinion for a conditional marketing authorisation from the CHMP as further information related to the manufacturing process can only be submitted in the coming months. This was considered appropriate in light of the ongoing public health emergency in DRC. The opinion adopted by the CHMP is an intermediary step on Ervebo’s path to patient access. The opinion will now be sent to the European Commission for the adoption of a decision on an EU-wide marketing authorisation.

The applicant for Ervebo is Merck Sharp & Dohme B.V.

Most Popular Now

AstraZeneca takes next steps towards broad and equ…

AstraZeneca has taken the next steps in its commitment to broad and equitable global access to the University of Oxford’s COVID-19 vaccine, following landmark agreements ...

Johnson & Johnson announces acceleration of it…

Johnson & Johnson (NYSE: JNJ) (the Company) today announced that through its Janssen Pharmaceutical Companies (Janssen) it has accelerated the initiation of the Phase 1/2...

Low-cost dexamethasone reduces death by up to one …

In March 2020, the RECOVERY (Randomised Evaluation of COVid-19 thERapY) trial was established as a randomised clinical trial to test a range of potential treatments for C...

Sanofi invests to make France its world class cent…

Sanofi detailed plans on how the Company will make significant investments in France to increase its vaccines research and production capacities, and contribute in respon...

Calquence showed promising clinical improvement in…

Results published in Science Immunology showed that Calquence (acalabrutinib), a Bruton’s tyrosine kinase (BTK) inhibitor, reduced markers of inflammation and improved cl...

Super-potent human antibodies protect against COVI…

A team led by Scripps Research has discovered antibodies in the blood of recovered COVID-19 patients that provide powerful protection against SARS-CoV-2, the coronavirus ...

New consortium EUbOPEN will provide tools to unloc…

Almost twenty years after deciphering the human genome, our understanding of human disease is still far from complete. One of the most powerful and versatile tools to bet...

AstraZeneca to supply Europe with up to 400 millio…

AstraZeneca has reached an agreement with Europe's Inclusive Vaccines Alliance (IVA), spearheaded by Germany, France, Italy and the Netherlands, to supply up to 400 milli...

Up to 45 percent of SARS-CoV-2 infections may be a…

An extraordinary percentage of people infected by the virus behind the ongoing deadly COVID-19 pandemic never show symptoms of the disease, according to the results of a ...

Researchers identify potent antibody cocktail to t…

Researchers at the University of Maryland School of Medicine (UMSOM) evaluated several human antibodies to determine the most potent combination to be mixed in a cocktail...

Gilead announces results from Phase 3 Trial of rem…

Gilead Sciences, Inc. (Nasdaq: GILD) announced topline results from the Phase 3 SIMPLE trial in hospitalized patients with moderate COVID-19 pneumonia. This open-label st...

Mayo finds convalescent plasma safe for diverse pa…

Mayo Clinic researchers and collaborators have found investigational convalescent plasma to be safe following transfusion in a diverse group of 20,000 patients. The findi...