FLORHAM PARK - Phathom Pharmaceuticals, Inc. (Nasdaq: PHAT), a biopharmaceutical company focused on developing and commercializing novel treatments for gastrointestinal (GI) diseases, today announced the U.S. commercial availability of VOQUEZNA (vonoprazan).

VOQUEZNA is now available for the treatment of adults with Erosive Esophagitis, also known as Erosive GERD (gastroesophageal reflux disease), and the relief of heartburn associated with Erosive GERD.1 As the first and only approved potassium-competitive acid blocker (PCAB) in the U.S., this milestone brings the power of a new class of acid suppression treatment to a disease with high unmet need.

'We are thrilled to announce the commercial availability of our first-in-class medication, VOQUEZNA, now available for the millions of people in the U.S. suffering from Erosive GERD,' said Martin Gilligan, Chief Commercial Officer at Phathom Pharmaceuticals. 'For over three decades, there has been no major innovation in this category. We are excited to introduce VOQUEZNA to patients and healthcare providers, as it has been shown to provide rapid, potent, and durable acid suppression and has the power to help heal Erosive GERD for patients seeking a new and effective treatment option.'

The U.S. Food and Drug Administration (FDA) recently approved VOQUEZNA for the healing of all severities (grades) of Erosive GERD, maintenance of healing of all severities of Erosive GERD, and relief of heartburn associated with Erosive GERD in adults.1 Its novel mechanism of action (MOA) provides rapid, potent, and durable acid suppression in a way that is distinct from other prescription and over-the-counter medications.2 Additionally, VOQUEZNA does not have the burden of mealtime dosing, whereas most PPIs must always be taken with food.1

In a Phase 3, randomized clinical study, VOQUEZNA 20 mg met the primary endpoint of non-inferiority for complete healing by Week 8 in patients with all severities of Erosive GERD, demonstrating a strong healing rate of 93% compared to 85% for lansoprazole 30 mg, with superior rates of healing demonstrated in a secondary endpoint in patients with moderate-to-severe disease at Week 2 compared to lansoprazole (70% for VOQUEZNA 20 mg and 53% for lansoprazole 30 mg). In the maintenance phase of the study, VOQUEZNA 10 mg was superior to lansoprazole 15 mg in maintaining healing at six months in all randomized patients (79% for VOQUEZNA 10 mg, compared to 72% for lansoprazole 15 mg).

The most common side effects of VOQUEZNA for the treatment of Erosive GERD include stomach inflammation, diarrhea, stomach bloating, stomach pain, nausea, indigestion, high blood pressure, and urinary tract infection.

'Erosive GERD is a highly prevalent condition affecting over 20 million people in the U.S.,3,4 many of whom experience troubling symptoms, including painful heartburn. When not properly treated, Erosive GERD can lead to complications such as scarring, narrowing of the esophagus, and bleeding, 4' said Colin Howden, M.D., Professor Emeritus, University of Tennessee College of Medicine. 'With many patients unsatisfied with their current therapy,5 the introduction of VOQUEZNA provides healthcare providers and patients with an important new treatment option that offers a novel mechanism of action and has demonstrated superiority in comparison to a standard-of-care PPI across several clinically meaningful endpoints.2'

Prescriptions for VOQUEZNA may be filled at major retail pharmacies and through BlinkRx, an end-to-end digital fulfillment channel. Phathom is offering programs for eligible patients who face coverage or affordability issues, including co-pay assistance for patients with commercial insurance.

In addition, VOQUEZNA TRIPLE PAK (vonoprazan tablets, amoxicillin capsules, clarithromycin tablets) and VOQUEZNA DUAL PAK (vonoprazan tablets, amoxicillin capsules), two treatment regimens for adults with H. pylori infection, are expected to be commercially available in mid-December 2023. VOQUEZNA TRIPLE PAK and VOQUEZNA DUAL PAK each contain 14-days of VOQUEZNA-based treatment co-packaged with antibiotics in convenient blister packs.

About Erosive GERD

Erosive GERD, also referred to as Erosive Esophagitis or Erosive Acid Reflux, is a major type of GERD that affects over 20 million people in the U.S. and is characterized by erosions in the gastric mucosa caused by acidic reflux of stomach contents into the esophagus.3 There are estimated to be over 65 million individuals with GERD in the U.S., of which approximately 30% have erosive GERD.4,6,7 In addition to experiencing troubling heartburn symptoms and painful erosions, patients with inadequately treated erosive GERD may progress to more severe diseases including Barrett's esophagus and esophageal cancer.4

About VOQUEZNA

VOQUEZNA (vonoprazan) tablets contain vonoprazan, an oral small molecule potassium-competitive acid blocker (PCAB). PCABs are a novel class of medicines that block acid secretion in the stomach. Vonoprazan provides rapid, potent, and durable acid suppression. Phathom in-licensed the U.S., European, and Canadian rights to vonoprazan from Takeda, which markets the product in Japan and numerous other countries in Asia and Latin America.

About Phathom Pharmaceuticals, Inc.

Phathom Pharmaceuticals is a biopharmaceutical company focused on the development and commercialization of novel treatments for gastrointestinal diseases. Phathom has in-licensed the exclusive rights in the U.S., Europe, and Canada to vonoprazan, a first-in-class potassium-competitive acid blocker (PCAB).

Forward Looking Statement

This press release contains forward-looking statements. Investors are cautioned not to place undue reliance on these forward-looking statements, including statements about the size of the Erosive GERD patient population and the potential of vonoprazan to satisfy the large unmet medical need. The inclusion of forward-looking statements should not be regarded as a representation by Phathom that any of its plans will be achieved. Actual results may differ from those set forth in this press release due to the risks and uncertainties inherent in Phathom's business, including, without limitation: we may not be able to successfully commercialize VOQUEZNA which will depend on a number of factors including coverage and reimbursement levels from governmental authorities and health insurers as well as market acceptance by healthcare providers; future data generated from our stability program may be different from the data submitted to the FDA to date and may not demonstrate that our mitigation efforts will continue to maintain the level of the nitrosamine impurity below the acceptable intake (AI) level throughout the shelf life of products containing vonoprazan, which could result in market action or shelf life reduction; risks associated with product manufacturing or formulation changes required to be made in connection with achieving the AI; the inherent risks of clinical development of vonoprazan; Phathom's dependence on third parties in connection with product manufacturing, research and preclinical and clinical testing; regulatory developments in the United States and foreign countries; unexpected adverse side effects or inadequate efficacy of vonoprazan that may limit its development, regulatory approval and/or commercialization, or may result in recalls or product liability claims; Phathom's ability to access additional capital under its term loan facility and royalty interest finance agreements is subject to certain conditions; Phathom's ability to obtain and maintain intellectual property protection for vonoprazan; Phathom's ability to comply with its license agreement with Takeda and other risks described in the Company's prior press releases and the Company's filings with the Securities and Exchange Commission (SEC), including under the heading 'Risk Factors' in the Company's Annual Report on Form 10-K and any subsequent filings with the SEC. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof, and Phathom undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date hereof. All forward-looking statements are qualified in their entirety by this cautionary statement, which is made under the safe harbor provisions of the Private Securities Litigation Reform Act of 1995.

Contact:

Nick Benedetto

Tel: 1-877-742-8466

Email: media@phathompharma.com

Eric Sciorilli

Tel: 1-877-742-8466

Email: ir@phathompharma.com

(C) 2023 Electronic News Publishing, source ENP Newswire