ZILXI™ Now Approved for Inflammatory Lesions of Rosacea in Adults

BRIDGEWATER, NJ, USA I May 29, 2020 I Menlo Therapeutics Inc. (Nasdaq: MNLO) (“Menlo” or the “Company”), a specialty pharmaceutical company focused on developing and commercializing proprietary therapies to address unmet needs in dermatology, today announced that the U.S. Food and Drug Administration (FDA) has approved ZILXI™ (minocycline) topical foam, 1.5%, for the treatment of inflammatory lesions of rosacea in adults. ZILXI, developed as FMX103 by Menlo’s wholly-owned subsidiary Foamix Pharmaceuticals Ltd. (“Foamix”), is the first minocycline product of any kind to be approved by the FDA for use in rosacea.

“This approval is welcome news for clinicians and patients who seek novel options for this difficult to treat skin disorder,” said David Domzalski, Chief Executive Officer of Menlo. “ZILXI is a potential turning point in rosacea treatment, providing millions of people with a new treatment option that is well-tolerated and effective.”

Rosacea is a diverse skin condition that most commonly presents with symptoms such as deep facial redness, spider veins (telangiectasia) and acne-like inflammatory lesions (papules and pustules).

Minocycline is one of several broad-spectrum antibiotics known as tetracyclines with anti-inflammatory properties; their use in some patients is limited due to systemic side effects when taken orally. In ZILXI, Menlo has once more leveraged its proprietary Molecule Stabilizing Technology (MST™) platform to effectively deliver minocycline in a foam-based vehicle.

“This is the only product containing minocycline approved by the FDA for rosacea,” said Iain Stuart, PhD, Chief Scientific Officer of Menlo. “The availability of a novel topical formulation of this molecule underscores our efforts to provide innovative treatment options for patients who suffer from difficult to treat skin conditions.”

The FDA approval of ZILXI is primarily supported by data from two clinical trials in 1,522 patients 18 years of age and older. In each 12-week multicenter, randomized, double-blind, vehicle-controlled trial, subjects with inflammatory lesions of rosacea were treated once daily with ZILXI or vehicle. No other topical or systemic medication affecting the course of inflammatory lesions of rosacea was permitted for use during these trials. The co-primary efficacy endpoints were (a) the absolute change from baseline in inflammatory lesion counts at Week 12 and (b) the proportion of subjects with treatment success at Week 12 defined as an IGA score of 0 (“clear”) or 1 (“almost clear”), and at least a two-grade improvement (decrease) from baseline at Week 12. ZILXI met both co-primary endpoints in each clinical trial, demonstrating statistically significant improvements in inflammatory lesion count and Investigator Global Assessment (IGA) treatment success. No treatment-related serious adverse events were reported. The most common adverse reaction reported by ≥1% of subjects treated with ZILXI and more frequently than in subjects treated with vehicle was diarrhea (1% vs. 0%), respectively.

Menlo anticipates having ZILXI available for prescribing by 4th quarter of this year.

About ZILXI™

INDICATIONS AND USAGE

ZILXI™ (minocycline) topical foam, 1.5% is a topical form of the antibiotic minocycline for the treatment of adults with pimples and bumps caused by a condition called rosacea. ZILXI is available by prescription only.

About Rosacea

Rosacea is a diverse skin condition that most commonly presents with symptoms such as deep facial redness, spider veins (telangiectasia) and acne-like inflammatory lesions (papules and pustules). It can create psychosocial burdens, such as embarrassment, anxiety and low self-esteem that can adversely affect quality of life2. Rosacea is most frequently seen in adults between 30 and 50 years of age. It affects more than 16 million people in the United States; up to 28% of these sufferers have rosacea with inflammatory lesions3.

About Menlo Therapeutics

Menlo Therapeutics Inc. recently combined with Foamix Pharmaceuticals Ltd. (“Foamix”) to form a specialty pharmaceutical company working to solve some of today’s most difficult therapeutic challenges in dermatology and beyond. Foamix is now a wholly-owned subsidiary of Menlo.

With expertise in topical medicine innovation as a springboard, the Company is working to develop and commercialize a variety of solutions using its proprietary Molecule Stabilizing Technology (MST™), and has received FDA approval for the world’s first topical minocycline, AMZEEQ™ (minocycline) topical foam, 4%, and now ZILXI™ (minocycline) topical foam, 1.5%

For more information about Menlo or its investigational products, visit www.menlotherapeutics.com. Menlo may use its website to comply with its disclosure obligations under Regulation FD. Therefore, investors should monitor Menlo’s website in addition to following its press releases, filings with the U.S. Securities and Exchange Commission, public conference calls, and webcasts.

Notes:

  1. Aimee Two, MD, et al, JAAD, Volume 72, Issue 5, May 2015
  2. Aksoy, B., Altaykan‐Hapa, A., Egemen, D., Karagöz, F. and Atakan, N. (2010), The impact of rosacea on quality of life: effects of demographic and clinical characteristics and various treatment modalities. British Journal of Dermatology, 163: 719-725.
  3. Gether et al. Incidence and prevalence of rosacea: a systematic review and meta-analysis. British Journal of Dermatology 25 Feb 2018.179: 282-289.

SOURCE: Menlo Therapeutics