Iván Castela

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Iván Castela

Iván Castela

@FaberCastel_

PhD Neuroscience | Life Science VC | Pharma BD | Biotech Investor

Spain Katılım Mart 2013
850 Takip Edilen196 Takipçiler
Iván Castela
Iván Castela@FaberCastel_·
@Andre_AGTC Naive question on LEAPS. You wait to execute the leaps in Jan 27, or you sell them after Q3 readout in HS?
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Iván Castela retweetledi
Bruce Booth
Bruce Booth@LifeSciVC·
Atlas Venture 2025 Year In Review lifescivc.com/2025/11/atlas-… Been a tough year to pin down as we went from bearish spring to bullish yea end… Listening at 1.25x+ speed is definitely recommended, and moves through the nearly 50-minute presentation slightly faster.
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Iván Castela
Iván Castela@FaberCastel_·
@Andre_AGTC Same for me here. Average is 8.7$, and thinking on adding more today after this data
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Iván Castela
Iván Castela@FaberCastel_·
@ilzizzo Today was the day I was waiting for… thinking to add a bit here just to try to recover my losses
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Lisan Al Pablo
Lisan Al Pablo@Pablo01618·
$VKTX short interest unchanged at 26 days to cover now into the 5's off exchange has risen dramatically to 57 this is now moving towards a squeeze days to cover gets into the single digits look out.. this could pull a Puma Biotech from the 2000s
Lisan Al Pablo tweet media
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Ssocialtrading
Ssocialtrading@ssocialtrading·
llegaron NUNCA a ser administradas. Era evidente, cómo iban a hacerle eso a Moderna o a Pfizer Biontech. Pues así, hasta que Hugo de Lince investors no me abrió los ojos, no vendí...de 300 a 120-90 y 50 dólares. Dura lección. Pero gracias a esa, hoy en día soy menos idiota
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Ssocialtrading
Ssocialtrading@ssocialtrading·
$NVAX fue mi mayor error como inversor. A veces, no vemos las alertas, no vemos las señales ni vemos el enjambre de factores contrario a nuestro análisis inversor. Y ojo, que hubo quien me avisó. Y no fue error por perder dinero, sino por dejar de ganar una fortuna 🧵
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Andrew Pannu
Andrew Pannu@andrewpannu·
China Out-Licensing Deals YTD 2025 (updated post GSK / Hengrui) 36 deals into major markets for innovative drugs so far, tracking for 63 by year end (vs 57 in 2024). With over half the year in the books, the patterns are starting to show:
Andrew Pannu tweet media
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Ssocialtrading
Ssocialtrading@ssocialtrading·
Con Nasdaq a 24000 venderé como si no hubiera un mañana...queda dicho
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Meadow Capital
Meadow Capital@MeadowCapital·
$MTSR Another week and $MTSR continues to climb. With no discernible news. And it's up 212% since April 10th 😲 What am I missing? $VKTX $LLY $NVO $PFE $MRK
Meadow Capital tweet mediaMeadow Capital tweet media
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Iván Castela
Iván Castela@FaberCastel_·
@GermanBiotech @MBbiotech @monaco_biotech It could be that at higher doses you are saturating your main target and activating other cells/mechanisms that could go against efficacy, such as IL2 drugs and other immunomodulators. I agree that MoA is puzzling, but there is need for other safer oral drugs in UC
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German Biotech
German Biotech@GermanBiotech·
Should you invest in $ABVX? I have my doubts. In the fig below from yesterday's call, Abivax is once again misleading investors. A remission rate of 26% is shown for obefazimod (25 mg). Fact is that at 50 mg it was just 17% (Δ 4%). /1
German Biotech tweet media
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Bioinvestor24
Bioinvestor24@bioinvestor24·
Something hidden in protocol we don’t know to increase sample size by more than 1000 pts. This increase by $VKTX is size of 2 phase 3 trials. For comparison. This trial size is 10x size of all ongoing $MTSR trials combined. Viking probably is the ground of long -short obesity biotech battle and this is partially why volume 10x Metsera or $GPCR
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Pharmdca
Pharmdca@Pharmdca·
$VKTX With PH3 trial kicked off, bearish theory of getting delayed died down. Smart strategy by management in trial design making sure safety profile and efficacy stays competitive. PH2 data- Firmly believe shorts will be crushed when company reports weight loss data. Chart wise, we see stock moves higher over $30 resistance.
Pharmdca tweet media
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Iván Castela
Iván Castela@FaberCastel_·
@anandcpatelmdms @MeadowCapital Taking into account that they skipped Phase 2b and that there are a lot of activities you usually run in parallel with Phase 2a,b (CMC development, chronic tox, regulatory etc), 16 months is quite decent. Just between Phase 2b and 3 there is a minimum of 7months bc of EOP2M...
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Anand C. Patel, MD MS
Anand C. Patel, MD MS@anandcpatelmdms·
@MeadowCapital How fast do you think their registrational phase 3 trials will read out? Also, while 16 months isn’t unusual, it’s a long time in a hypercompetitive space, isn’t it?
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Meadow Capital
Meadow Capital@MeadowCapital·
$VKTX Are you telling me that we've waited 16 months between Ph.2 finishing in Feb 2024 and Ph.3 starting in June 2025. And then we're told "Earliest you'll see the final data will be in 2027." We're cool with that? I'm already SO sick of $VKTX shorts and their shenanigans😑
GIF
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Iván Castela
Iván Castela@FaberCastel_·
@MeadowCapital Take the enrollment time of ph2 sc and n of sites and you get pts/site per month. Then check the number of sites of ph3 and n of patients and calculate the time of enrollment. Add 78w, and you get las patient last visit. Add 4w and you get top line results
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Meadow Capital
Meadow Capital@MeadowCapital·
$VKTX Quick time frame check. 📍End of June 25 : Ph.3 trial intiated 📍78 week trial 📍78 weeks from today is Dec 23rd 2026 But we need to factor in patient recruitment. Several months? 📍So Ph.3 data in mid 2027? How long roughly should recruitment take, anyone know?
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Bioinvestor24
Bioinvestor24@bioinvestor24·
For $VKTX oral upcoming phase 3 trial. They will need around 1000 pts only as the SC phase 3 will satisfy FDA toxicity requirement. If @Viking_VKTX management moves on it , it could initiate in q1 2026 as they know by now all FDA requirements , it is the same molecule and they already negotiated contracts with study sites. Oral VK2735 would be second after $LLY orfoglipron, it is a peptide but the same molecule .. will be smooth transition for ones who want to switch from sc to oral maintenance ( although I doubt an auto injector is an issue for vast majority of pts) Lilly is promoting idea of switch from tirzepatide to orfoglipron, but they are different molecules and you lose GIP for oral .. do pts need to re escalate ? $NVO $PFE @AlbertBourla
Bioinvestor24@bioinvestor24

$VKTX plans to enroll 4500 pts in obese trial and 1100 in the obese diabetics. Significantly more than FDA requirements of total 4500. Wonder why ? $LLY in comparison enrolled 2539 and 938 pts respectively ? Massive trials .. No wonder why it took few months to start. Also pushing the dose for 17.5 mg. Good strategy “Each study will include an open-label extension allowing participants the opportunity to continue receiving treatment following completion of the primary dosing period.”

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Iván Castela
Iván Castela@FaberCastel_·
@Biohazard3737 What is your take on $ABVX? The MoA is still puzzling to me, but the maintainance data is the best so far... What is your bar in the induction period given that other orals (JAKs, S1P1s) have a lot of AEs?
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Iván Castela
Iván Castela@FaberCastel_·
@seedy19tron @plainyogurt21 Comparable efficacy in the induction setting compared to other approved but more toxic orals (S1P1 and JAKs), and amazing in the maintainance setting. Probably they will raise cash after the induction and anfter the maintainance to start the Phase 3 in CD
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Seedy19
Seedy19@seedy19tron·
@plainyogurt21 I mean I believe the drug is active. St just seems to think it’s dumb. But considering the large randomise ph2 trial surely impossible for an inactive drug to have a blinded response rate even close to what abivax showed in their ph2 right?
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Adu Subramanian
Adu Subramanian@plainyogurt21·
$ABVX for those looking at the ABivax story, is the play on induction results next quarter or the maintenance results next year?
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