SHEN-211 is a selective 3-chymotrypsin-like protease (3CLpro) inhibitor that can protect against SARS-CoV-2. In previous work, SHEN-211 demonstrated high efficacy in inhibiting 3CLpro (IC50=24 nM) and exhibited broad-spectrum antiviral properties.
SK Bioscience Ltd. announced that the company has submitted an investigational new drug (IND) application to the South Korean Ministry of Food and Drug Safety.
There is still no effective vaccine or cure for HIV. Scientists are considering options ranging from longer-term antiretroviral therapy (ART) that space out injections by several years to long-lasting pre-exposure prophylaxis (PrEP) that acts as a vaccine while immunization is achieved. What else can be done? The “Innovations in HIV virology: Translating discoveries into novel therapies” symposium in basic science at the 13th IAS Conference on HIV Science (IAS 2025), which took place from July 13 to 17, 2025, in Kigali, Rwanda, showcased some of the new ideas that the scientific community are developing.
While people living with HIV can lead virtually normal lives thanks to antiretroviral therapy (ART), HIV persists in a latent state within cellular reservoirs that scientists do not know how to eliminate. “Transcription is a critical step in the viral life cycle. … But there are currently no drugs suppressing HIV transcription, and that may be one of the reasons why current antiretroviral therapy is not curative,” Melanie Ott told the audience at the 13th IAS Conference on HIV Science this week in Kigali, Rwanda.
As of May 2023, the WHO recommends the use of a monovalent XBB.1 descendent lineage, such as omicron XBB.1.5, as the vaccine antigen for COVID-19 vaccines. However, BA.2.86 and its descendent lineages, such as JN.1, have emerged and rapidly spread worldwide.
Nipah (NiV) and Hendra (HeV) viruses, two closely related members of the Henipavirus genus, continue to raise global concern due to their high mortality rates and potential for zoonotic spillover. Despite repeated outbreaks, there are still no licensed antiviral treatments targeting these pathogens, either for control or prevention.
Latvian Institute of Organic Synthesis has identified subtilisin-like protease 1 (PfSUB1) (Plasmodium falciparum) inhibitors reported to be useful for the treatment of malaria.
Human adenoviruses (HAdVs) are nonenveloped viruses with linear double-stranded DNA. Though often self-limiting, they can cause severe disease in immunocompromised individuals. The compact genome of HAdV results in few viable drug targets, complicating efforts to develop new treatments. Consequently, antiviral options remain limited, with most candidates being nucleoside or nucleotide analogues.
The neurotropic alphavirus group includes Eastern equine encephalitis virus (EEEV), Venezuelan equine encephalitis virus (VEEV) and Western equine encephalitis virus (WEEV). These viruses exhibit a strong tropism for the CNS, often resulting in encephalitis. In some cases, infection can progress to severe neurological disease, including coma or death.
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