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Antibe Therapeutics Inc(Pre-Merger) ATBPF

Antibe Therapeutics Inc. is a clinical-stage biotechnology company. The Company is leveraging its hydrogen sulfide (H2S) platform to develop therapies to target inflammation arising from a range of medical conditions. The Company’s pipeline includes assets that seek to overcome the gastrointestinal ulcers and bleeding associated with nonsteroidal anti-inflammatory drugs (NSAIDs). Its lead drug, otenaproxesul, is in clinical development as an alternative to opioids and NSAIDs for acute pain. Its second pipeline drug, ATB-352, is being developed for a specialized pain indication. The Company also focuses on inflammatory bowel disease (IBD). Otenaproxesul combines a moiety that releases hydrogen sulfide with naproxen, a non-steroidal, anti-inflammatory drug. ATB-352 is an H2S-releasing derivative of ketoprofen, a potent NSAID commonly prescribed for acute pain. Its IBD candidates are being designed to maintain the efficacy, safety, and pharmacokinetic properties of ATB-429.


GREY:ATBPF - Post by User

Comment by mstrmndon Oct 16, 2021 3:01pm
167 Views
Post# 34013723

RE:RE:RE:RE:RE:Time to Market for H2S Pipeline

RE:RE:RE:RE:RE:Time to Market for H2S PipelineMy take is it's on par with other NSAIDS.  In fact from an API perspective, it's less NSAID being ingested.

Why are LTE's occurring then?  H2S may be inhibiting cytochrome p450 enzymes responsible for NSAID metabolism therefore reduced clearance of metabolites through kidneys in long-term use.  

Since dose-dependence has been confirmed, the dose needs to be reduced to account for this reduced clearance for long-term use.  Otherwise circulating NSAID concentrations may be higher than traditional NSAIDS except without the GI risk but same LTE risk.  That's why in Phase 2a and 2b 150 mg daily x 14 days, LTE in keeping with NSAID rate is seen.  Don't forget, parent molecule is an NSAID (Naproxen) for Otenaproxesul, so LTE rate of about 5% is always expected.  The kicker is there's no GI bleeding and since this is a well-known potentially fatal outcome, even a slightly higher LTE rate may be tolerated in slow-metabolizers because of the mucosal healing + anti-inflammatory properties.

Hope that helps.

GLTA

Layth1990 wrote: Protect and yet we got thrown out of AME for having high LTE. The rate is higher than regular nsaids. If it is protective as what you are claiming we would have lower LTEs than other nsaids. Don'y give false hope to people 


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