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Phathom Pharmaceuticals Announces Positive FDA Decision to Recognize 10 Years of Regulatory Exclusivity for VOQUEZNA (vonoprazan) Tablets through May 3, 2032

Key Takeaway: Phathom Pharmaceuticals has received FDA approval for its Citizen Petition, confirming 10 years of regulatory exclusivity for VOQUEZNA (vonoprazan) tablets, extending this exclusivity until May 3, 2032. This decision is significant as it provides a competitive edge for Phathom in the gastrointestinal treatment market. The company focuses on developing innovative therapies for gastrointestinal diseases, with its primary product, VOQUEZNA, addressing heartburn and H. pylori infections. The FDA's recognition is anticipated to enhance the commercialization potential for Phathom's offerings.
Price reaction · baseline $4.69 (2025-06-05 close) · hit after-hours · clean, no other PHAT news in the window
day 0 close
+90.2%
day 1
+88.3%
day 3 · peak
+92.8%

Market Sentiment Analysis

POSITIVE FACTORS

  • FDA approval recognizes 10 years of regulatory exclusivity for VOQUEZNA.
  • Extension of exclusivity provides a clear competitive advantage until 2032.
  • Potential for increased market acceptance of VOQUEZNA leads to growth opportunities.

BiopharmaWatch Analysis

From our catalyst data and publicly available data · not financial advice
Best trade, last catalyst
+166%
120-day peak, hindsight
Typical move
4.5%
average across 7 past catalysts
Cash runway
~283 mo
Minimal dilution risk
Lead asset
Vonoprazan
Phase 3 · Erosive Esophagitis

Full Press Release Details

FLORHAM PARK, N.J., June 06, 2025 (GLOBE NEWSWIRE) -- Phathom Pharmaceuticals, Inc. (Nasdaq: PHAT) today announced that the U.S. Food and Drug Administration (FDA) has approved Phathom’s Citizen Petition filed on December 11, 2024 and communicated the Agency’s intention to correct the Orange Book to recognize the proper 10 years of New Chemical Entity exclusivity for VOQUEZNA® (vonoprazan) tablets, extending through May 3, 2032.
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 to vonoprazan, a first-in-class potassium-competitive acid blocker (PCAB) that is currently marketed in the United States as VOQUEZNA® (vonoprazan) tablets for the relief of heartburn associated with Non-Erosive GERD in adults, the healing and maintenance of healing of Erosive GERD in adults and relief of associated heartburn, in addition to VOQUEZNA® TRIPLE PAK® (vonoprazan tablets, amoxicillin capsules, clarithromycin tablets) and VOQUEZNA® DUAL PAK® (vonoprazan tablets, amoxicillin capsules) for the treatment of H. pylori infection in adults. For more information about Phathom, visit the company’s website at www.phathompharma.com and follow on LinkedIn and X.
Forward-Looking Statements
This press release contains forward-looking statements. Investors are cautioned not to place undue reliance on these forward-looking statements, including statements about Phathom’s commercialization plans. 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: the timing of the correction to the Orange Book; the expected duration of patent term extension for VOQUEZNA; we may not be able to successfully commercialize VOQUEZNA, VOQUEZNA TRIPLE PAK and VOQUEZNA DUAL PAK, 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; 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 obtain and maintain intellectual property protection, including patent term extensions, and non-patent regulatory exclusivity for vonoprazan; Phathom may face competition earlier than expected if it loses or fails to obtain any of its patent protection or non-patent regulatory exclusivity for VOQUEZNA tablets; Phathom’s ability to obtain and maintain intellectual property protection and non-patent regulatory exclusivity for vonoprazan; 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 most recent 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.
VOQUEZNA, VOQUEZNA DUAL PAK, VOQUEZNA TRIPLE PAK, Phathom Pharmaceuticals, and their respective logos are registered trademarks of Phathom Pharmaceuticals, Inc.

Frequently Asked Questions

What recent FDA approval did Phathom Pharmaceuticals receive?

The FDA approved Phathom's Citizen Petition regarding VOQUEZNA's exclusivity.

When does VOQUEZNA's exclusivity extend until?

VOQUEZNA's exclusivity extends through May 3, 2032.

What conditions does VOQUEZNA treat?

VOQUEZNA treats heartburn from Non-Erosive GERD and Erosive GERD.

What is vonoprazan classified as?

Vonoprazan is classified as a potassium-competitive acid blocker (PCAB).

Where can I find more information about Phathom Pharmaceuticals?

More information is available on Phathom's website and social media channels.

Last updated: Jun 6, 2025