Table.
Success in animals | Issues and concerns | |
---|---|---|
Treatment approach | ||
Antibody therapy | Efficacy in rodents but not in non-human primates | Escape mutants; genetic variability; antibody-dependent enhancement of infection |
Antisense oligonucleotides | ||
Phosphorodiamidate morpholino oligonucleotides | Efficacy in rodents and non-human primates (latter prophylactic only) | Genetic variation; delivery |
Small interfering RNAs | Efficacy in rodents and non-human primates | Genetic variation; delivery |
Inflammatory modulators | ||
Type I interferons | Efficacy in rodents but not in non-human primates | Manipulation of immune system |
S-adenosylhomocysteine hydrolase inhibitors | Efficacy in rodents but not in non-human primates | Manipulation of immune system |
Coagulation modulators | ||
Heparin sulfate | Efficacy in humans questionable; not tested in animals | Manipulation of coagulation |
Tissue factor pathway inhibitors | Not tested in rodents; partial protection in non-human primates | Manipulation of coagulation |
Activated protein C | Not tested in rodents; partial protection in non-human primates | Manipulation of coagulation |
Vaccination approach | ||
Postexposure vaccination | ||
Vesicular stomatitis virus | Efficacy in rodents and non-human primates | Efficacy dependent on filovirus species and time of treatment start |
Pre-exposure vaccination | ||
Adenovirus type 5 | Efficacy in rodents and non-human primates; one dose; clinical trials | Pre-existing immunity; high dose |
Human parainfluenza virus type 3 | Efficacy in rodents and non-human primates; two doses needed for non-human primates | Pre-existing immunity; safety (replication-competent) |
Vesicular stomatitis virus | Efficacy in rodents and non-human primates; one dose | Safety (replication-competent) |
Virus-like particles | Efficacy in rodents and non-human primates; three doses needed for non-human primates | Boost immunisation needed; production |
Recombinant Ebola virus without VP35 | Efficacy in rodents | Safety |
Only approaches that have shown in-vivo efficacy have been listed.