Biopharmaceutical company Arena Pharmaceuticals (NASDAQ: ARNA) has announced it is advancing its etrasimod eczema treatment into Phase 3 trials despite mixed results.
Arena revealed that the study failed to meet its primary endpoint of Eczema Area and Severity Index (EASI) change from the baseline at week 12 compared to the placebo.
The San Diego-based company also said that between weeks 4-8, the trial was impacted by unwarranted dose interruption that was not related to drug safety.
Ready to put what you’ve learned into practice?
Try IG’s platform with £10,000 in virtual funds and practise trading
without putting your own money at risk.
Try IG with a demo account →
Spread bets and CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 69% of retail investor accounts lose money when trading spread bets and CFDs with this provider.
Learn the markets with IG Academy
Build your knowledge with IG Academy educational content, then use a
demo account to practise what you’ve learned on the IG platform.
Explore IG →
Spread bets and CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 69% of retail investor accounts lose money when trading spread bets and CFDs with this provider.
See how trading works before risking real money
IG’s demo gives you access to thousands of markets and £10,000 in
virtual funds, so you can explore the platform and test your ideas first.
Open an IG demo →
Spread bets and CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 69% of retail investor accounts lose money when trading spread bets and CFDs with this provider.
Turn trading theory into practical experience
Learn with IG Academy, explore charts and market tools, and practise
strategies in a simulated trading environment before going live.
Start practising with IG →
Spread bets and CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 69% of retail investor accounts lose money when trading spread bets and CFDs with this provider.
Ready to take your learning further?
IG combines market education, analysis and an established trading platform,
giving you the tools to keep learning as you develop your trading skills.
Discover IG →
Spread bets and CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 69% of retail investor accounts lose money when trading spread bets and CFDs with this provider.
However, about a third of participants in the 2 mg estrasimod group achieved clear or almost clear skin, while there were no safety concerns.
Despite the mixed results, the company were happy with the trial and have decided to initiate a Phase 3 program.

“Today is an important day for Arena as we achieved our key objectives for the ADVISE trial which were to evaluate safety and efficacy of etrasimod in a dermatologic population, and to inform dose and design decisions for a pivotal Phase 3 program,” stated Chris Cabell, Executive Vice President, at Arena.
“We believe the clinical benefits of etrasimod in this trial were impressive, especially given the challenges of conducting a Phase 2 trial with a novel MOA in atopic dermatitis,” Cabell continued.
Investors haven’t reacted well to the news with Arena’s share price plummeting premarket and falling further after the open. Its shares are trading at $66.72, down 23.68% at the time of this publication.
PEOPLE WHO READ THIS ALSO VIEWED: