Soleno Therapeutics stock jumps as rival Acadia drops PWS drug

Published 24/09/2025, 14:18
Soleno Therapeutics stock jumps as rival Acadia drops PWS drug

Investing.com - Soleno Therapeutics (NASDAQ:SLNO) stock jumped 14% in pre-market trading Wednesday following news that a potential competitor has exited the Prader-Willi syndrome (PWS) treatment space.

Acadia Pharmaceuticals announced that its Phase 3 trial of intranasal carbetocin for PWS failed to meet its primary endpoint, prompting the company to discontinue development of the treatment. Despite this setback, Acadia maintains strong financial health with a market capitalization of nearly $4 billion and robust revenue growth of 14.4% over the last twelve months.

The discontinued development removes a competitive threat to Soleno’s Vykat XR, which is being developed to treat hyperphagia and other symptoms associated with Prader-Willi syndrome.

Oppenheimer analysts noted that the market reaction to Acadia’s announcement indicates investors had maintained some optimism for a positive outcome from Acadia’s clinical trial.

Prader-Willi syndrome is a rare genetic disorder that causes chronic hunger, obesity, and intellectual disability, with limited treatment options currently available to patients.

In other recent news, Soleno Therapeutics has received positive attention following the failure of a competitor’s drug in clinical trials. Acadia Pharmaceuticals announced that its Phase 3 trial for the Prader-Willi syndrome treatment, intranasal carbetocin (ACP-101), did not meet its primary endpoint, leading the company to discontinue its development for this indication. Following this development, Wells Fargo reiterated an Overweight rating for Soleno Therapeutics with a price target of $123, and Stifel reiterated a Buy rating with a target of $118. Both firms noted the removal of a significant competitive overhang for Soleno’s Vykat drug. Meanwhile, Stifel maintained a Hold rating on Acadia Pharmaceuticals, citing the drug’s failure but also acknowledging the company’s stabilizing core business and future prospects with other treatments. These developments have shifted the competitive landscape for Prader-Willi syndrome treatments, with Soleno Therapeutics now in a more favorable position.

This article was generated with the support of AI and reviewed by an editor. For more information see our T&C.

Latest comments

Risk Disclosure: Trading in financial instruments and/or cryptocurrencies involves high risks including the risk of losing some, or all, of your investment amount, and may not be suitable for all investors. Prices of cryptocurrencies are extremely volatile and may be affected by external factors such as financial, regulatory or political events. Trading on margin increases the financial risks.
Before deciding to trade in financial instrument or cryptocurrencies you should be fully informed of the risks and costs associated with trading the financial markets, carefully consider your investment objectives, level of experience, and risk appetite, and seek professional advice where needed.
Fusion Media would like to remind you that the data contained in this website is not necessarily real-time nor accurate. The data and prices on the website are not necessarily provided by any market or exchange, but may be provided by market makers, and so prices may not be accurate and may differ from the actual price at any given market, meaning prices are indicative and not appropriate for trading purposes. Fusion Media and any provider of the data contained in this website will not accept liability for any loss or damage as a result of your trading, or your reliance on the information contained within this website.
It is prohibited to use, store, reproduce, display, modify, transmit or distribute the data contained in this website without the explicit prior written permission of Fusion Media and/or the data provider. All intellectual property rights are reserved by the providers and/or the exchange providing the data contained in this website.
Fusion Media may be compensated by the advertisers that appear on the website, based on your interaction with the advertisements or advertisers
© 2007-2025 - Fusion Media Limited. All Rights Reserved.