Since obeldesivir, figuring out the structure of undisclosed cmpds in the clinic has become my new hobby 🤠

So I'll periodically post structures of other cmpds here

I'll start w #VX548, a Nav1.8 inhibitor for treating pain by @VertexPharma $VRTX. Inspired by @cispt2 1/8
VX-548 is currently in ph3 for the tx of acute pain. From trials registry, the earliest trial date is on July 19, 2021. 2/8
A series of patents were recently published by Vertex on the same series of the inhibitors (Dec. 8, 2022)

These all have the same priority/filing/publish dates

Earliest priority traces back to June 4, 2021: ~1 mo. earlier than 1st trial reg (July 19, 2021) 3/8
The most telling/interesting of this series are:

WO 2022/256708 A1 (solid dosage forms & dosing regimens)

WO 2022/256660 A1 (process chemistry) 4/8
worldwide.espacenet.com/patent/search?…
worldwide.espacenet.com/patent/search?…
Both patents describe the same compound💡 5/8
The biggest giveaways are in the solid dosage forms & dosing patent, which includes trial designs for peripherial diabetic neuropathy & bunionectomy as examples.

Treatment arms & dosing checks out

It becomes readily apparent that compound 1 = VX-548
6/8
clinicaltrials.gov/ct2/show/NCT05…
Example 4 on bunionectomy seals the deal. Crazy sig fig match! 7/8
investors.vrtx.com/news-releases/…
clinicaltrials.gov/ct2/show/NCT04…
Thread that inspired this thread + summary of the non-opiod pain landscape 8/8

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More from @victoriacyanide

Dec 28, 2022
When did @GileadSciences decide that #GS441524 hypothesis was valid? Clues in patent history🔍

While Gilead bashed GS-441524 in 2020, they quietly worked on oral prodrugs

Could we have had an oral COVID pill in late '20/early '21? 💊

I think YES 🧵1/16
worldwide.espacenet.com/patent/search?…
Patent on oral GS-441524 prodrugs has 1st priority filing on AUGUST 27, 2020. So they did not think the '524 hypothesis was worthless in 2020. 2/16
statnews.com/2020/05/14/gil…
Context: @Muller_Lab & I published an Opinion in @statnews urging Gilead to pursue dev of #GS441524 in May 2020 (above)

On June 24, 2020, we first met w Gilead science leadership, who indicated they were not interested. 3/16
medium.com/@victoriacyani…
Read 16 tweets
Nov 29, 2021
BIG NEWS: deuterated #GS441524 tri-iBu ester (#VV116) is in clinical trials in Uzbekistan for #COVID19. Trials in China 🔜. Developed by the one and only *Wuhan Institute of Virology*. Deuterium was added to bypass @GileadSciences 💊 1/4
@ncats_nih_gov
shine.cn/news/nation/21… Image
Official article published in @cell_res in September 2021 by the folk at Wuhan Institute of Virology. Original @biorxivpreprint was published in November 2020. 2/4
nature.com/articles/s4142…
Chinese patent by the WIV first filed in Sept 2020. WO patent filed in April 2021. Gilead's 2009 patent on 524 and the 2016 patent on #remdesivir do not include any of the compounds described in the WIV patent. Does Gilead actually own any of these WIV compounds?? 3/4 ImageImage
Read 5 tweets
Apr 9, 2021
First-in-Woman Safety, Tolerability, and Pharmacokinetics of Orally Administered #GS441524: A Broad-Spectrum Antiviral Treatment for #COVID19. A 🧵1/7 osf.io/am5s8/
Part 1 of the study: 750 mg GS-441524 was orally administered as a solution QD for 7 days. D1-5 were performed in the fasted state. D6-7 in the fed state. There was a slight food effect that seemed to hamper drug absorption. Cmax ~2.4-3 uM. AUC ~26-33 uM. 2/7
No AEs or lab abnormalities were observed in Part 1 of the study. Blood chemistry was normal. 3/7
Read 7 tweets
May 14, 2020
Fun fact: #remdesivir is almost certainly not the species that reaches #COVID19 patients' lungs! Its nucleoside #GS441524 is. Wrote this piece for @statnews explaining this! @GileadSciences consider aerosolizing GS-441524 prophylaxis. Pls read and RT! 1/x

bit.ly/3dIc0Au
I've been reading a lot of general audience/science articles on #remdesivir. Many of these articles seem to confuse nucleoSIDES with nucleoTIDES. Here's the difference, feat. important figures. 2/x
#remdesivir is a nucleoTIDE monophosphate analogue. #GS441524 is a nucleoSIDE analogue. 3/x
Read 10 tweets

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