Acadia Pharmaceuticals Announces Phase 3 Development Candidate ACP-101 (intranasal carbetocin) for Prader-Willi Syndrome

— Acadia acquired Levo Therapeutics and worldwide rights to ACP-101 in June 2022

— ACP-101 (intranasal carbetocin) is a selective oxytocin-receptor agonist for the treatment of hyperphagia in Prader-Willi syndrome

— Company recently completed a meeting with the FDA and plans to initiate a Phase 3 study in the fourth quarter of 2023

— Webcast to be held today at 5:00 p.m. Eastern Time

SAN DIEGO–( BUSINESS WIRE )– Acadia Pharmaceuticals Inc. (Nasdaq: ACAD) today announced the addition of a new Phase 3 development candidate to its rare disease portfolio, ACP-101 (intranasal carbetocin), for the treatment of hyperphagia (a false and unrelenting state of starvation) in Prader-Willi syndrome (PWS). Acadia acquired worldwide rights to develop and commercialize ACP-101 with the acquisition of Levo Therapeutics in June 2022.

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“Acadia’s acquisition of ACP-101 demonstrates our commitment to acquiring and developing novel drug candidates that address significant unmet needs in central nervous system disorders. The addition of this drug candidate to our rare disease portfolio is an important next step in the execution of our business development strategy,” said Steve Davis, Acadia’s President and Chief Executive Officer. “Prader-Willi syndrome is a rare genetic disorder with no approved treatments, characterized by life-threatening hyperphagia, in addition to a broad range of severe metabolic issues and behavioral challenges. We look forward to working with the Prader-Willi community and clinical experts as we continue to advance development of this program.”

Prior to Acadia’s acquisition, Levo conducted a Phase 3 multi-center, randomized, double-blind, 8-week placebo-controlled study evaluating two doses of ACP-101, 3.2 mg and 9.6 mg, versus placebo three times daily with an even randomization (1:1:1). Top-line results showed that ACP-101 was safe and well-tolerated and demonstrated nominally statistically significant efficacy at the 3.2 mg dose.

“We recently met with the FDA and reached alignment to further evaluate the 3.2 milligram dose of ACP-101 in a pivotal Phase 3 study,” said Doug Williamson, Acadia’s Executive Vice President, Head of Research and Development. “If positive, we plan to promptly submit a new drug application for the treatment of hyperphagia in PWS to the FDA.”

Prader-Willi syndrome is a rare, neurobehavioral genetic disorder characterized by severe and life-threatening hyperphagia, metabolic issues, intellectual deficits and other behavioral problems that is estimated to affect 8,000 to 10,000 patients in the United States. 1,2 There is no FDA approved medicine to treat hyperphagia in PWS. 5

Conference Call and Webcast Information

Acadia will discuss the ACP-101 program via conference call and webcast today at 5:00 p.m. Eastern Time. The conference call will be available on Acadia’s website, www.acadia.com under the investors section and will be archived there until July 13, 2023. The conference call may also be accessed by registering for the call here. Once registered, participants will receive an email with the dial-in number and unique PIN number to use for accessing the call.

About ACP-101 (intranasal carbetocin)

ACP-101 is an investigational drug in the form of an intranasal formulation of carbetocin being developed for the treatment of hyperphagia in Prader-Willi syndrome (PWS). Carbetocin has improved drug qualities relative to oxytocin, including an extended duration of action and greater specificity for the oxytocin receptors compared to vasopressin receptors which could provide meaningful efficacy with an attractive safety profile in patients with PWS. 8 For the treatment of Prader-Willi syndrome specifically, a central nervous system disorder, an intranasal formulation of carbetocin was developed, which provides direct delivery of the drug to the brain, greatly reducing systemic exposure and the potential for side effects. ACP-101 has been granted Orphan Drug, Fast Track, and Rare Pediatric Disease designations by the FDA.

About Prader-Willi Syndrome

Prader-Willi syndrome is a rare neurobehavioral genetic disorder that affects both males and females. 1 Prevalence estimates range from 1 in 15,000 to 1 in 25,000 live births worldwide translating to an estimated 8,000 to 10,000 patients in the United States. 2 PWS affects the functioning of the hypothalamus and other aspects of the brain with symptoms varying by individual. 1,5 The condition is typically characterized by hyperphagia which is an insatiable appetite and lack of satiety, to which a deficiency in oxytocin is believed to be contributory. Oxytocin is a natural hormone that regulates several functions in the body, including hunger, anxiety, social behavior, and bonding. 1 Individuals living with PWS have fewer neurons that produce oxytocin in the brain. 6 Other defining features of the syndrome may include reduced resting energy expenditure, developmental delays and behavioral challenges including anxiety and depression. Patients may also experience bone disorders, high pain tolerance leading to unsuspected issues such as fractures and gastrointestinal issues, respiratory and temperature regulation abnormalities. 3-5,7 There is no FDA approved treatment for the hyperphagia associated with PWS. 5

About Acadia Pharmaceuticals

Acadia is advancing breakthroughs in neuroscience to elevate life. For almost 30 years we have been working at the forefront of healthcare to bring vital solutions to people who need them most. We developed and commercialized the first and only approved therapies for hallucinations and delusions associated with Parkinson’s disease psychosis and for the treatment of Rett syndrome. Our clinical-stage development efforts are focused on treating the negative symptoms of schizophrenia, Prader-Willi syndrome, Alzheimer’s disease psychosis and neuropsychiatric symptoms in central nervous system disorders. For more information, visit us at www.acadia.com and follow us on LinkedIn and Twitter.

Forward-Looking Statements

Statements in this press release that are not strictly historical in nature are forward-looking statements. These statements include but are not limited to statements regarding the timing of future events. These statements are only predictions based on current information and expectations and involve a number of risks and uncertainties. Actual events or results may differ materially from those projected in any of such statements due to various factors, including the risks and uncertainties inherent in drug development, approval, and commercialization. For a discussion of these and other factors, please refer to Acadia’s annual report on Form 10-K for the year ended December 31, 2022, as well as Acadia’s subsequent filings with the Securities and Exchange Commission. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. This caution is made under the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. All forward-looking statements are qualified in their entirety by this cautionary statement and Acadia undertakes no obligation to revise or update this press release to reflect events or circumstances after the date hereof, except as required by law.

References

1 Swaab DF, Purba JS, and Hofman MA. Alterations in the hypothalamic paraventricular nucleus and its oxytocin neurons (putative satiety cells) in Prader-Willi syndrome: a study of five cases.” The Journal of Clinical Endocrinology & Metabolism. 1995; 80 (2): 573-579.
2 Burd L, Vesely B, Martsolf J, et. al. Prevalence study of Prader-Willi syndrome in North Dakota. Am J Med Genet. 1990; 37: 97-9.
3 Kayadjanian N, Vrana-Diaz C, Bohonowych J, et al. Characteristics and relationship between hyperphagia, anxiety, behavioral challenges and caregiver burden in Prader-Willi syndrome. PloS ONE. 2021; 16 (3): e0248739.
4 Einfeld SL, Kavanagh SJ, Smith A, et al. Mortality in Prader-Willi syndrome. Am J Ment Retard. 2006; 111 (3): 193-8.
5 Prader-Willi Syndrome Association. What Is Prader-Willi Syndrome? Retrieved from https://www.pwsausa.org/what-is-prader-willi-syndrome/. Accessed June 1, 2023.
6 Miller JL, Tamura R, Butler MG, et al. Oxytocin treatment in children with Prader–Willi syndrome: A double-blind, placebo-controlled, crossover study. Am J Med Genet A. 2017; 173 (5): 1243-1250.
7 Butler MG, Theodoro MF, Bittel DC, et al. Energy Expenditure and Physical Activity in Prader–Willi Syndrome. Am J Med Genet A. 2007; 143A (5): 449-459.
8 Engstrom T, Barth T, Villhardt M. Oxytocin receptor binding and uterotonic activity of carbetocin and its metabolites following enzymatic degradation. Eur J Pharmacol. 1998; 355 (2-3): 203-210.

Contacts

Media Contact:
Acadia Pharmaceuticals Inc.
Deb Kazenelson
(818) 395-3043
media@acadia-pharm.com

Investor Contact:
Acadia Pharmaceuticals Inc.
Mark Johnson, CFA
(858) 261-2771
ir@acadia-pharm.com

Source: Acadia Pharmaceuticals Inc.

By Maria Thacker Goethe August 1, 2025
As Washington heads into August recess, Georgia Life Sciences is counting down the days to the 2025 Georgia Life Sciences Summit , taking place August 26–27 in Sandy Springs . With just one month to go, this pivotal gathering will bring together innovators, investors, policymakers, and ecosystem leaders at a time when the national policy landscape is shifting rapidly—and not always in our favor. In just the past week, we’ve seen: A short-lived but deeply disruptive pause in NIH funding : The White House Office of Management and Budget (OMB) temporarily halted the issuance of NIH research grants, contracts, and training awards—impacting institutions nationwide, including here in Georgia. After significant backlash from Congress, research leaders, and advocacy groups, the administration quickly reversed course and released the funds. However, this episode underscores the growing unpredictability of federal research funding—one of the lifelines for our academic and startup ecosystem. The return of pharmaceutical tariffs : The administration announced a 15% tariff on European pharmaceutical imports , though it will not take effect until a national security review is completed. While far lower than the previously floated 200% rate, this move still poses a concern for supply chains and U.S. companies relying on EU-based manufacturing. Escalating pressure on drug pricing : President Trump has now issued direct letters to CEOs of 17 major pharmaceutical companies demanding implementation of Most Favored Nation (MFN) pricing within 60 days. The directive includes MFN pricing for all existing Medicaid drugs, future Medicare and commercial launches, and even repatriation of foreign revenues. While regulatory specifics remain vague, the message is clear: the administration is increasing its pressure on pricing reform—and that could have broad implications for biotech innovation, particularly among smaller companies. At the same time, a new BIO report shows that early-stage biotech funding continues to contract. Series A investment remains flat, IPOs are sluggish, and Q2 startup funding dropped to just $900 million—down from $2.6 billion in Q1. Layoffs across the sector have surged. This paints a sobering picture for many companies in Georgia and beyond. In this environment, Georgia Life Sciences remains committed to elevating our state’s voice, regionally and nationally . We continue to advocate for stable federal funding, smart policies, and the resources innovators need to survive and thrive. The Georgia Life Sciences Summit will be a platform to do just that, demonstrating the resilience of our ecosystem, celebrating homegrown successes, and shaping the future of health innovation in Georgia. I hope to see you there.
By Maria Thacker Goethe July 28, 2025
By: Clary Estes “Small companies are the lifeblood of the industry and a lot of what they do, and what they’re experiencing, greatly affects the industry as a whole,” said Chad Wessel, Director of Industry Analysis at the Biotechnology Innovation Organization (BIO). He spoke with Bio.News in an interview about BIO’s 2025 report, “ The State of Emerging Biotech Companies: Investment, Deal, and Pipeline Trends ,” focused on the biotech industry from the early-stage perspective. As researchers found, the current landscape is challenging, but there are still opportunities. “In the last couple years, we’ve had a little bit of a contraction of the industry. During COVID, we kind of had this sugar rush for the industry,” said Wessel. “A lot of companies were being created. A lot of money was being thrown out there. A lot more companies were being funded. And in the last couple of years, there has been a little bit more of a correction, and we’re seeing funding levels going down to what we’ve seen prior to COVID.” “But when you add on other challenges, like the political landscape and everything, it is leaning towards a very challenging environment for a lot of companies,” he continued. Bearish venture capital “In venture capital, yes, you have a lot of money, but it’s going to fewer companies at higher average amounts,” explained Wessel. “It’s creating this competitive haves and have-nots type marketplace or environment. So it just makes it a lot more competitive and more challenging to raise funds.” Instead of finding new opportunities, venture capitalists are investing more in companies they are already working with. As the BIO report found, the amount of new series A-1 investment rounds into biopharma remained flat between 2023 and 2024, while the number of U.S. companies receiving their first series A-1 tranche went from 102 to 100. This is in comparison to 181 in 2021, reflecting the COVID influx to emerging biotechs. Comparatively, as the BIO report found, the average amount for A-1 transactions in the U.S. saw a remarkable increase of 700% in the last 15 years, with the average amount raised sitting at $60 million in 2024. The rest of the world stayed relatively steady in comparison to the U.S.’s persistent growth. And with the more bearish tendencies of investors, Wessel and team observed an interesting trend. “2024 was the first year that clinical programs actually raised more venture dollars than pre-clinical, which hasn’t happened in a while,” said Wessel. “I think the last time that happened was in 2018. This ties into some of the information that we’ve heard anecdotally, which is that a lot of VC firms are focusing on the companies that they currently have in their portfolio, rather than adding new companies.” Licensing and deals dip It is not too surprising, then, that as investors shore up what they already have in the pipelines, the R&D pipeline and licensing have slowed somewhat. As the BIO report observed, long-term growth in the R&D pipeline continues with an overall growth of 145% since 2010. Yet, the 2024 expansion rate (4.6%) subsided slightly, trailing the 5-year average of 6.7%. “The growth has slowed on new programs, and more of those programs are being licensed with larger companies,” explained Wessel. “There are fewer options for big companies to backfill their pipeline with products because a lot of them are already out.” The data also shows a notable slowing of the R&D typically done by large biopharma companies. “The areas that are not licensed out as much are the ones with some of the higher patient populations and subsequently the ones that are not being run by small companies,” said Wessel. “These are areas like endocrine and cardiovascular diseases, which are areas where there are a lot of things like type 2 diabetes, psoriasis , high blood pressure, etc. Those all have a lot of burden on the healthcare sector or the patient population, and those aren’t really being worked on that much by smaller companies.” Comparatively – and also not surprisingly – oncology has stayed at the top of the clinical pipeline, along with neurology and infectious disease. “Same thing with licensing,” said Wessel. “While there are deals that are still happening, the upfront amount is lower currently than it has been in years past, and most of the value is tied up into milestone payments, which may or may not happen.” This is also being felt when it comes to new companies going public, which has been an oft-discussed challenge in the biotech industry for the last few years. “The IPO market has still been challenging,” Wessel says. “We went from having 40 companies a year going public, down to 15 in 2023, and now we’re back up in 2025, but it’s still down from the pre-COVID era timeframe.” Biopharma layoffs Another notable characteristic of this year’s biopharma landscape has been uptick in layoffs. “Sometimes it’s just the nature of the economy. But the amount that we’ve seen in the last few years is quite a bit higher,” said Wessel. “To counter that, we don’t really have a way of measuring job creation, but we do know it’s happening. We just are unable to put a value on that.” The BIO report found that layoff announcements ticked up to 65 during Q1 of 2025. While two points lower than Q1 of the previous year, this still marks a jump from 2024’s Q2, Q3, and Q4, which saw the number of layoff announcements at 41, 54, and 46, respectively. All in all, Wessel noted, the biotech industry is still in a bit of a holding period when it comes to trying to navigate the coming months. “It’s too early to be able to say much about the coming years for the industry based on these numbers,” he said. “It takes a little time for reality to kind of catch up for multiple reasons. But what I can say is that we do know that companies are reducing their pipelines. We do know that companies are laying off individuals. We do know that companies are having a challenge of raising funds and continue doing their best to try to maintain operations as long as they can until they can get funds.” “We know the challenge is out there, but we’re going to have to kind of wait and see a little bit on the data side of things to understand how everything is going to catch up going forward.” Source: https://bio.news/bioeconomy/bio-2025-state-of-emerging-biotechs-report-market-trends/?mkt_tok=NDkwLUVIWi05OTkAAAGb7m5php-rTOf0a_GTaj5pj7Zl-HlpVM25WtyVvCYudM82a9GKjoazUg9sqU66hlAbhqbEuYvcX3C4EqfBG7Q
By Maria Thacker Goethe July 26, 2025
Pioneer Institute has released updated #340B state fact sheets for 2025
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