While the decision of the 🇺🇸 governement to support an IP #waiver on #COVID_19 vaccines is a step in the right direction, many other things now need to happen. 🧵1/9
For the waiver to effectively accelerate vaccine availability, significant 💰 investments are needed, as well as "tech transfers". 2/9
Tech transfers require both parties, originator vaccine companies and recipient vaccine companies, to *collaborate* and share know how. science.sciencemag.org/content/369/65…
If the originator vaccine company is reluctant to collaborate, the IP waiver alone will have v/ limited impact. 3/9
Tech transfer hubs can be efficient ways to catalyze tech transfers. The @WHO has established a tech transfer hub for mRNA vaccine technology. 4/9 who.int/news-room/arti…
Importantly, the IP waiver proposed by US gov is restricted to Covid-19 vaccines. It doesn't cover Covid-19 therapeutics. It is a shame.
If there is one class of tools that could quickly benefit from an IP waiver, that's small molecule drugs ! 5/9
As it is much easier to copy small molecule drugs than vaccines through *reverse engineering*, an IP waiver on Covid-19 drugs would quickly translate into accelerated availability of generics of patent-protected small molecule drugs for Covid-19. 6/9
There are a few on-patent expensive drugs approved for emergency use against Covid-19 in some countries (i.e. remdesivir, baricitinib) & many more in the pipeline (i.e. molnupiravir, proxalutamide, C21).
Generics could be available in a few months if patents were removed. 7/9
The case of monoclonal antibodies and other large molecule biological drugs is somewhere in between the cases of small molecules and vaccines. Not easy to copy through reverse engineering. IP barriers are one thing, access to cell line is crucial too. 8/9 f1000research.com/articles/7-537
In sum, I'm glad to see the US gov support the IP #waiver on #COVID_19 vaccines.
But more needs to happen (i.e. tech transfers, investments).
And other tools, particularly small molecule drugs, should be covered by the waiver too. 9/9

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More from @julienpotet

11 Mar
1/
🔥EXCELLENT results for Phase III multicentric double-blind RCT of #proxalutamide for hospitalized #COVID_19 patients🔥
n=588
Study led by @FlavioCadegiani in 🇧🇷
92% reduction in mortality ! prnewswire.com/news-releases/…
2/
Keep in mind that this is a press release, not a scientific publication.
A point is particularly unclear in the press release, i.e. authors claim 588 patients were enrolled, but then later write they were 294 in proxalutamide group & 296 in control group.
294+296=590≠588.
3/
Detailed results were shared in Portuguese during this press conference in 🇧🇷
Read 8 tweets
10 Mar
1/
Excellent results for phase 3 placebo-controlled RCT in 🇺🇸 among mild-to-moderate #COVID_19 patients at high risk of clinical deterioration.
Cocktail of 700mg of #bamlanivimab & 1,400mg of #etesevimab reduced risk of hospitalizations & death by 87%.
2/
This press release needs to be taken with grain of salt. Among other limitations, it says nothing about different variants of concern.
3/
Concern now is that bamlanivimab is quite accessible in monotherapy, but not yet in combination w/ etesevimab.
In Oct 2020, @gatesfoundation signed a contract w/ Lilly & Fujifilm to manufacture more bamlanivimab. Could it now also include etesevimab?
Read 6 tweets
12 Feb
1/
Large RCT (n=930) in Barcelona, 🇪🇸: #calcifediol vs control among hospitalized #COVID_19 patients.
Strong clinical benefit: ↘️ICU admission & ↘️mortality.
Unclear to me why this preprint got unnoticed (published three weeks ago) !
#VitaminD
papers.ssrn.com/sol3/papers.cf…
2/
These new results confirm similar positive results for calcifediol generated in Cordoba in a smaller pilot RCT
3/
The new study in Barcelona has limitations: no placebo (open label); randomization per ward (not individual); modified intention to treat for some patients.
Yet results are very encouraging !
It was apparently submitted to @TheLancet. I hope it will get published soon.
Read 6 tweets
11 Feb
Live-tweeting about the 1st online conference on noma disease. Stay tune !
#ZeroNoma #NTDs
Opening message by @PeterHotez. Peter is among other things editor of @PLOSNTDs. The journal recently agreed to include noma in the list of eligible diseases for publication. #NTDs
Noma survivor @FidelStrub tells his personal story. Underwent 27 surgical operations ! Moving testimony by a strong advocate !
Read 18 tweets
6 Feb
Quelques éléments de contexte pour expliquer le communiqué de presse de @Merck qui conclut à l'absence quasi totale de preuves en faveur de l'#ivermectine (IVM) pour #COVID_19 🧵merck.com/news/merck-sta…
Petit disclaimer pour commencer : je ne suis ni "pro-IVM", ni "anti-IVM". Ces catégories n'existent que dans les esprits des gens qui politisent tout et n'importe quoi.
Je ne doute pas que Merck croit sincèrement que l'IVM ne marchera pas contre COVID-19.
Ceci étant, il faut analyser le contexte dans lequel s'inscrit cette prise de position assez catégorique et pour le moins inhabituelle d'un géant de l'industrie.
Read 11 tweets
11 Jan
Bangladesh: large RCT (n=606) of #mouthwash, gargling, nasal spraying & eye drops w/ 1% povidone-iodine (PVP-I, aka #Betadine) for #COVID_19. Every 4 hours for 4 weeks.
Impressive results.
bioresearchcommunications.com/index.php/brc/…
h/t @Covid19Crusher
Mouthwash solutions of PVP-I can be easily purchased OTC in many countries. Nasal sprays and eye drops are less easily accessible (i.e. not available OTC in France).
There have been other in vivo and in vitro studies over the last months. A tiny RCT from Singapore had previously found encouraging results.
Read 5 tweets

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