Soleno Therapeutics Provides Regulatory Update on DCCR for the Treatment of Prader-Willi Syndrome

Rhea-AI Summary

Soleno Therapeutics, Inc. (NASDAQ: SLNO) announced an update regarding its DCCR (diazoxide choline) extended-release tablets for Prader-Willi Syndrome (PWS). Following a recent FDA interaction, Soleno submitted additional analyses from its Phase 3 DESTINY PWS trial, which indicated statistically significant improvements. However, the FDA has mandated an additional controlled clinical trial before proceeding with a New Drug Application (NDA). Soleno remains committed to expediting DCCR’s approval process, recognizing DCCR's potential in treating PWS, a rare disease affecting one in 15,000 live births in the U.S.

Positive

• Statistically significant improvements in primary and key secondary endpoints from Phase 3 trial.
• DCCR has received Orphan Drug Designation and Fast Track Designation from the FDA.
• Soleno expresses strong confidence in DCCR as a potential treatment for PWS.

Negative

• FDA requires an additional controlled clinical trial for NDA submission.

REDWOOD CITY, Calif., March 08, 2021 (GLOBE NEWSWIRE) -- Soleno Therapeutics, Inc. (“Soleno”) (NASDAQ: SLNO), a clinical-stage biopharmaceutical company developing novel therapeutics for the treatment of rare diseases, today provided an update following recent interactions with the U.S. Food and Drug Administration (FDA) regarding the development of once-daily DCCR (diazoxide choline) extended release tablets for the treatment of Prader-Willi Syndrome (PWS).

Subsequent to the previously disclosed Type C meeting with the FDA on November 12, 2020 regarding the potential adequacy of data from studies with DCCR to support a New Drug Application (NDA) for the treatment of PWS, Soleno submitted additional analyses to the FDA from the Company’s Phase 3 trial, DESTINY PWS (C601). These data were from study visits that were completed prior to the significant disruptions caused by the COVID-19 pandemic. The data analyses showed statistically significant changes for DCCR compared to placebo in the primary and key secondary endpoints. Following its review of the data submitted by Soleno, the FDA informed the Company on March 5, 2021 that an additional controlled clinical trial will be necessary to support an NDA submission for DCCR in PWS.

“We intend to continue the dialogue with the FDA to ensure that DCCR is approved for individuals with PWS as expeditiously as possible,” said Anish Bhatnagar, M.D., Chief Executive Officer of Soleno Therapeutics. “Based on the totality of data generated to date, we remain confident in DCCR’s potential to address the unmet need for a safe and effective treatment option for PWS patients. We are currently evaluating the appropriate next steps for our DCCR program.”

About PWS
The Prader-Willi Syndrome Association USA estimates that PWS occurs in one in every 15,000 live births in the U.S. The hallmark symptom of this disorder is hyperphagia, a chronic feeling of insatiable hunger that severely diminishes the quality of life for PWS patients and their families. Additional characteristics of PWS include behavioral problems, cognitive disabilities, low muscle tone, short stature (when not treated with growth hormone), the accumulation of excess body fat, developmental delays, and incomplete sexual development. Hyperphagia can lead to significant morbidities (e.g., obesity, diabetes, cardiovascular disease) and mortality (e.g., stomach rupture, choking, accidental death due to food seeking behavior). In a global survey conducted by the Foundation for Prader-Willi Research, 96.5% of respondents (parent and caregivers) rated hyperphagia as the most important or a very important symptom to be relieved by a new medicine. There are currently no approved therapies to treat the hyperphagia/appetite, metabolic, cognitive function, or behavioral aspects of the disorder. Diazoxide choline has received Orphan Drug Designation for the treatment of PWS in the U.S. and EU, and Fast Track Designation in the U.S.

About DCCR (Diazoxide Choline) Extended-Release Tablets
DCCR is a novel, proprietary extended-release dosage form containing the crystalline salt of diazoxide and is administered once-daily. The parent molecule, diazoxide, has been used for decades in thousands of patients in a few rare diseases in neonates, infants, children and adults, but has not been approved for use in PWS. Soleno conceived of and established extensive patent protection on the therapeutic use of diazoxide and DCCR in patients with PWS. The DCCR development program is supported by data from five completed Phase 1 clinical studies in healthy volunteers and three completed Phase 2 clinical studies, one of which was in PWS patients. In the PWS Phase 3 study, DCCR showed promise in addressing hyperphagia, the hallmark symptom of PWS, as well as several other symptoms such as aggressive/destructive behaviors, fat mass and other metabolic parameters.

About Soleno Therapeutics, Inc.
Soleno is focused on the development and commercialization of novel therapeutics for the treatment of rare diseases. The company’s lead candidate, DCCR extended-release tablets, a once-daily oral tablet for the treatment of Prader-Willi Syndrome (PWS), is currently being evaluated in a Phase 3 clinical development program. For more information, please visit www.soleno.life.

Forward-Looking Statements
This press release contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended. All statements other than statements of historical facts contained in this press release are forward-looking statements, including statements regarding timing of any regulatory process or ultimate approvals and determining a path forward for DCCR for the treatment of PWS. In some cases, you can identify forward-looking statements by terms such as "may," "will," "should," "expect," "plan," "anticipate," "could," "intend," "target," "project," "contemplates," "believes," "estimates," "predicts," "potential" or "continue" or the negative of these terms or other similar expressions. These forward-looking statements speak only as of the date of this press release and are subject to a number of risks, uncertainties and assumptions, including the risks and uncertainties associated with market conditions, as well as risks and uncertainties inherent in Soleno’s business, including those described in the company's prior press releases and in the periodic reports it files with the SEC. The events and circumstances reflected in the company's forward-looking statements may not be achieved or occur and actual results could differ materially from those projected in the forward-looking statements. Except as required by applicable law, the company does not plan to publicly update or revise any forward-looking statements contained herein, whether as a result of any new information, future events, changed circumstances or otherwise.

Corporate Contact:
Brian Ritchie
LifeSci Advisors, LLC
212-915-2578

FAQ

What recent update did Soleno Therapeutics provide regarding DCCR for PWS?

Soleno Therapeutics reported that the FDA requires an additional controlled clinical trial to support the NDA for DCCR, despite showing statistically significant results in previous trials.

What is the significance of the FDA's requirement for Soleno (SLNO)?

The FDA's requirement for an additional trial indicates potential delays in the approval process for DCCR, potentially affecting timelines and investor sentiment.

How prevalent is Prader-Willi Syndrome in the U.S.?

Prader-Willi Syndrome occurs in approximately one in every 15,000 live births in the U.S.

What designations has DCCR received from the FDA?

DCCR has received Orphan Drug Designation and Fast Track Designation for the treatment of Prader-Willi Syndrome.

What are the potential benefits of DCCR for PWS patients?

DCCR aims to address hyperphagia and other symptoms associated with PWS, which currently lacks approved treatments.