First Newborn Baby to Receive Experimental Therapies Survives Ebola Virus Disease

Dörnemann, Jenny; Burzio, Chiara; Ronsse, Axelle; Sprecher, Armand; Clerck, Hilde De; Herp, Michel Van; Kolie, Marie-Claire; Yosifiva, Vesselina; Caluwaerts, Séverine; McElroy, Anita K.; Antierens, Annick

doi:10.1093/infdis/jiw493

Cited by 101 publications

(109 citation statements)

References 12 publications

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“…This relapsed patient received GS-5734 and advanced supportive care, including high-dose cortico steroids, and recovered. One study reported the compassionate use of GS-5734 in combination with ZMapp and a convalescent buffy coat transfusion in a newborn baby who survived EBOV infection 177 . GS-5734 is currently being used in West Africa in a trial called PREVAIL for men with persistent EBOV RNA in semen 178 .…”

Section: Gs-5734mentioning

confidence: 99%

Post-exposure treatments for Ebola and Marburg virus infections

Cross

Mire

Feldmann

et al. 2018

Nat Rev Drug Discov

111

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| The filoviruses -Ebola virus and Marburg virus -cause lethal haemorrhagic fever in humans and non-human primates (NHPs). Filoviruses present a global health threat both as naturally acquired diseases and as potential agents of bioterrorism. In the recent 2013-2016 outbreak of Ebola virus, the most promising therapies for post-exposure use with demonstrated efficacy in the gold-standard NHP models of filovirus disease were unable to show statistically significant protection in patients infected with Ebola virus. This Review briefly discusses these failures and what has been learned from these experiences, and summarizes the current status of post-exposure medical countermeasures in development, including antibodies, small interfering RNA and small molecules. We outline how our current knowledge could be applied to the identification of novel interventions and ways to use interventions more effectively. R E V I E W SNATURE REVIEWS | DRUG DISCOVERY VOLUME 17 | JUNE 2018 | 413 © 2 0 1 8 M a c m i l l a n P u b l i s h e r s L i m i t e d , p a r t o f S p r i n g e r N a t u r e . A l l r i g h t s r e s e r v e d . AstheniaMuscular weakness. MyalgiaMuscular pain. ArthralgiaJoint pain. LeukopeniaA condition of having a low number of circulating leukocytes, including neutrophils, eosinophils, basophils, lymphocytes and monocytes. LymphocytopeniaA condition of having a low number of circulating leukocytes, including natural killer cells, T cells and B cells. ThrombocytopeniaA condition of having a low number of circulating thrombocytes, also known as platelets.and Ebolavirus. The Marburgvirus genus contains a single species, Marburg marburgvirus, which contains two members, Marburg virus (MARV) and Ravn virus (RAVV). The Ebolavirus genus consists of five distinct species: Bundibugyo ebolavirus (BDBV), Reston ebolavirus (RESTV), Sudan ebolavirus (SUDV), Tai Forest ebolavirus (TAFV; previously termed 'Côte d'Ivoire ebolavirus' but more commonly known as 'Ivory Coast ebolavirus') and Zaire ebolavirus (EBOV). MARV, RAVV, BDBV, SUDV and EBOV are important human pathogens, with case fatality rates often up to 90% for MARV, RAVV and EBOV, and around 55% for SUDV 8,10 . On the basis of two small outbreaks in 2007 and 2012, BDBV seems to be the least pathogenic, with a case fatality rate of about 40-48% 11,12 . In 1994, TAFV was associated with a number of deaths in chimpanzees and a single symptomatic but non-lethal human infection in the Republic of Côte d'Ivoire 13,14 . RESTV is lethal for macaques but is not thought to cause disease in humans 15 . An outbreak of RESTV was reported in pigs in the Philippines in 2008; however, it remains uncertain whether the disease observed in the pigs was caused by RESTV or other agents reported to have co-infected the animals 16 . Clinical manifestationsClinical and laboratory signs of disease caused by filovirus infection are nonspecific and usually associated with an incubation period of 2-21 days (mean 4-10 days) 8,17 . Illness begins with an abrupt onset of fever, astheni...

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Section: Gs-5734mentioning

confidence: 99%

Post-exposure treatments for Ebola and Marburg virus infections

Cross

Mire

Feldmann

et al. 2018

Nat Rev Drug Discov

111

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“…By the end of the West‐Africa EBOV outbreak, GS‐5734 clearly indicated 100% protection of rhesus monkeys following lethal EBOV challenge and an improved highly potent in vitro efficacy against Mayinga and Makona strains as compared to favipiravir . Moreover, GS‐5734 has been recently administered for the first time to a newborn baby . BCX4430 has been tested against for its broad‐spectrum inhibition of various viruses including, arenaviruses, bunyaviruses, coronaviruses, paramyxoviruses, and flaviviruses .…”

Section: Introductionmentioning

confidence: 99%

Perspectives towards antiviral drug discovery against Ebola virus

Mirza

Vanmeert

Ali

et al. 2019

Journal of Medical Virology

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Ebola virus disease (EVD), caused by Ebola viruses, resulted in more than 11 500 deaths according to a recent 2018 WHO report. With mortality rates up to 90%, it is nowadays one of the most deadly infectious diseases. However, no Food and Drug Administration‐approved Ebola drugs or vaccines are available yet with the mainstay of therapy being supportive care. The high fatality rate and absence of effective treatment or vaccination make Ebola virus a category‐A biothreat pathogen. Fortunately, a series of investigational countermeasures have been developed to control and prevent this global threat. This review summarizes the recent therapeutic advances and ongoing research progress from research and development to clinical trials in the development of small‐molecule antiviral drugs, small‐interference RNA molecules, phosphorodiamidate morpholino oligomers, full‐length monoclonal antibodies, and vaccines. Moreover, difficulties are highlighted in the search for effective countermeasures against EVD with additional focus on the interplay between available in silico prediction methods and their evidenced potential in antiviral drug discovery.

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“…The new research and development efforts also resulted in the identification of GS-5734, a nucleotide analog polymerase inhibitor with broad antiviral spectrum activity . Following Phase 1 safety studies, GS-5734 was first given to two patients, one in the United Kingdom in October 2015 and one in Guinea the following month, through a compassionate use request (Jacobs et al, 2016;Dornemann et al, 2017). The current Phase 2 study aims to evaluate the antiviral efficacy of 5 days of GS-5734 given intravenously to male Ebola virus disease survivors shedding Ebola virus in their semen (Table 2).…”

Section: Ebolamentioning

confidence: 99%

Innovation and trends in the development and approval of antiviral medicines: 1987–2017 and beyond

2018

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2017 marked the 30th anniversary of the approval of zidovudine (AZT) as the first HIV/AIDS therapy. Since then, more than eighty antiviral drugs have received FDA approval, half of which treat HIV infection. Here, we provide a retrospective analysis of approved antiviral drugs, including therapeutics against other major chronic infections such as hepatitis B and C, and herpes viruses, over the last thirty years. During this time, only a few drugs were approved to treat acute viral infections, mainly influenza. Analysis of these approved antiviral drugs based on molecular class and mode of action shows that a large majority are small molecules and direct-acting agents as opposed to proteins, peptides, or oligonucleotides and host-targeting therapies. In addition, approvals of combination therapies accelerated over the last five years. We also provide a prospective study of future potential antiviral therapies, based on current clinical research pipelines across the pharmaceutical industry. Comparing past drug approvals with current clinical candidates hints at the future evolution in antiviral therapies and reveals how antiviral medicines are often discovered. Overall, this work helps forecast future trends and innovation in the field of antiviral research and development.

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First Newborn Baby to Receive Experimental Therapies Survives Ebola Virus Disease

Cited by 101 publications

References 12 publications

Post-exposure treatments for Ebola and Marburg virus infections

Post-exposure treatments for Ebola and Marburg virus infections

Perspectives towards antiviral drug discovery against Ebola virus

Innovation and trends in the development and approval of antiviral medicines: 1987–2017 and beyond

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