{"id":781851,"date":"2023-09-05T09:53:13","date_gmt":"2023-09-05T13:53:13","guid":{"rendered":"https:\/\/www.marketnewsdesk.com\/index.php\/x4-pharmaceuticals-announces-submission-of-new-drug-application-nda-to-u-s-fda-for-mavorixafor-in-whim-syndrome\/"},"modified":"2023-09-05T09:53:13","modified_gmt":"2023-09-05T13:53:13","slug":"x4-pharmaceuticals-announces-submission-of-new-drug-application-nda-to-u-s-fda-for-mavorixafor-in-whim-syndrome","status":"publish","type":"post","link":"https:\/\/www.marketnewsdesk.com\/index.php\/x4-pharmaceuticals-announces-submission-of-new-drug-application-nda-to-u-s-fda-for-mavorixafor-in-whim-syndrome\/","title":{"rendered":"X4 Pharmaceuticals Announces Submission of New Drug Application (NDA) to U.S. FDA for Mavorixafor in WHIM Syndrome"},"content":{"rendered":"<h2>\nSubmission supported by positive results from global, pivotal 4WHIM Phase 3 clinical trial<br \/>\n<\/h2>\n<div class=\"mw_release\">\n<p>BOSTON, Sept.  05, 2023  (GLOBE NEWSWIRE) &#8212; <a href=\"https:\/\/www.globenewswire.com\/Tracker?data=TnvEL0o1x3vDDmC9hiWoSi05Q7nmT8FpvKH5M3QvhdnTLI6LV9MMwR6upj-0qSSlz-8j4PrnkBMqn083t5d-eeEvDkGE7V1nZ_KCIVzibDw=\" rel=\"nofollow noopener\" target=\"_blank\"><strong>X4 Pharmaceuticals<\/strong><\/a> (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced the submission of a New Drug Application (NDA) to the United States Food and Drug Administration (FDA) for the approval of once-daily, oral mavorixafor to treat individuals aged 12 and older with WHIM (Warts, Hypogammaglobulinemia, Infections, and Myelokathexis) syndrome, a rare, primary immunodeficiency.<\/p>\n<p>\u201cThe submission of our first NDA is a significant milestone in X4&#8217;s journey to transform the care of those living with rare immunodeficiencies,\u201d said Paula Ragan, Ph.D., President and Chief Executive Officer of X4 Pharmaceuticals. \u201cWe\u2019re excited that this submission moves us one step closer to introducing what could be the first approved product in the U.S. for those with WHIM syndrome. We also continue to advance our clinical program evaluating mavorixafor in people with chronic neutropenic disorders.\u201d<\/p>\n<p>The FDA takes 60 days to determine whether an NDA is sufficiently complete prior to accepting it for filing. X4 has requested priority review for the application which, if granted, would provide a target FDA review period of six months from the application acceptance for filing date.<\/p>\n<p>The NDA submission is supported by the results of the global, pivotal, 4WHIM Phase 3 clinical trial of once-daily, oral mavorixafor in individuals with WHIM syndrome. The 4WHIM trial met its primary endpoint and key secondary endpoint and was generally well tolerated in the trial, with no treatment-related serious adverse events reported and no discontinuations for safety events. The 4WHIM data also revealed that mavorixafor treatment resulted in reductions in the rate, severity, and duration of infections in trial participants versus placebo. These and additional 4WHIM Phase 3 data were published in <a href=\"https:\/\/www.globenewswire.com\/Tracker?data=uKe3X7uhBd0QWc1GBbzxzBGgHfvJHz3Gl2nKDMOBqmMcFfv9TUC1H4iNgQtgp7MD1AE7kWDzBycj0Mkc6QsHQe5GVX1zqmg8nkqgdZuNbumF-iNr5vY2bYZM0LQWan1Bj88ZVHJPlRNkZNXDjmBYOUAkJGGbSq09_4F6V8sG-lAHvWhplCoi2Bn4kHnMWKlo\" rel=\"nofollow noopener\" target=\"_blank\">oral presentations<\/a> at the annual meetings of both the Clinical Immunology Society (CIS) and European Hematology Association (EHA).<\/p>\n<p>\n        <strong>About Mavorixafor and WHIM Syndrome<\/strong><br \/>\n        <br \/>WHIM syndrome is a rare, inherited, combined immunodeficiency disease caused by reduced mobilization and trafficking of white blood cells from the bone marrow due to over-signaling of the CXCR4\/CXCL12 pathway. WHIM syndrome is named for its four common clinical findings: Warts, Hypogammaglobulinemia, Infections, and Myelokathexis, although not all patients experience all symptoms, and not all symptoms are required for a diagnosis. People with WHIM syndrome characteristically have very low blood levels of neutrophils (neutropenia) and lymphocytes (lymphopenia), and as a result, experience frequent, recurrent infections with a high risk of lung disease, refractory warts from underlying human papillomavirus (HPV) infection, limited antibody production due to low levels of immunoglobulin, and an increased risk of developing certain types of cancer.<\/p>\n<p>Mavorixafor is an investigational small-molecule antagonist of CXCR4 being developed as a once-daily oral therapy for WHIM syndrome. For the WHIM syndrome indication, mavorixafor has been granted Breakthrough Therapy Designation, Fast Track Designation, and Rare Pediatric Designation in the U.S., and Orphan Drug Status in both the U.S. and European Union.<\/p>\n<p>\n        <strong>About the 4WHIM Phase 3 Clinical Trial<\/strong><br \/>\n        <br \/>The 4WHIM Phase 3 clinical trial was a global, randomized, double-blind, placebo-controlled, multicenter study designed to evaluate the efficacy and safety of oral, once-daily mavorixafor in people with genetically confirmed WHIM syndrome. The trial enrolled 31 participants aged 12 and older who received either mavorixafor (n=14) or placebo (n=17) orally once daily for 52 weeks. An open-label extension phase of the clinical trial is ongoing (NCT03995108).<\/p>\n<p>\n        <strong>About X4 Pharmaceuticals <\/strong><br \/>\n        <br \/>X4 Pharmaceuticals is a late-stage clinical biopharmaceutical company driven to improve the lives of people with rare diseases of the immune system. Our lead clinical candidate is mavorixafor, a small molecule antagonist of chemokine receptor CXCR4 that is being developed as an oral, once-daily therapy across a variety of immunodeficiencies, including WHIM (Warts, Hypogammaglobulinemia, Infections, and Myelokathexis) syndrome and certain chronic neutropenic disorders. Following successful completion of a global, pivotal, Phase 3 clinical trial, we are seeking U.S. approval of oral, once-daily mavorixafor for the treatment of people aged 12 years and older with WHIM syndrome. We are also currently planning a Phase 3 clinical program evaluating mavorixafor in certain chronic neutropenic disorders. We continue to leverage our insights into CXCR4 and immune system biology at our corporate headquarters in Boston, Massachusetts and at our research center of excellence in Vienna, Austria. For more information, please visit our website at <a href=\"https:\/\/www.globenewswire.com\/Tracker?data=AC2JkHbckfB8m2kbEq6bKQOX8jv1svNmCQomh9I-dYzfthJdy9TE-nV2Tobg_djo1-LnIR8w9TBK2T6EI03QEA==\" rel=\"nofollow noopener\" target=\"_blank\">www.x4pharma.com<\/a>.<\/p>\n<p>\n        <strong>Forward-Looking Statements<\/strong><br \/>\n        <br \/>This press release contains forward-looking statements within the meaning of applicable securities laws, including the Private Securities Litigation Reform Act of 1995, as amended. These statements may be identified by the words \u201cmay,\u201d \u201cwill,\u201d \u201ccould,\u201d \u201cwould,\u201d \u201cshould,\u201d \u201cexpect,\u201d \u201cplan,\u201d \u201canticipate,\u201d \u201cintend,\u201d \u201cbelieve,\u201d \u201cestimate,\u201d \u201cpredict,\u201d \u201cproject,\u201d \u201cpotential,\u201d \u201ccontinue,\u201d \u201ctarget,\u201d or other similar terms or expressions that concern X4&#8217;s expectations, strategy, plans, or intentions. Forward-looking statements include, without limitation, statements regarding the FDA\u2019s review of the NDA for mavorixafor in WHIM syndrome, if accepted, and commercial launch of mavorixafor, if approved. Any forward-looking statements in this press release are based on management&#8217;s current expectations and beliefs. Actual events or results may differ materially from those expressed or implied by any forward-looking statements contained herein, including, without limitation, the risk that the FDA does not accept the NDA submission for mavorixafor for the treatment of WHIM syndrome; the risk that such NDA is not approved by the FDA or such approval is delayed; the risk that commercial launch of mavorixafor in WHIM syndrome, if approved, is delayed; the risk that the potential market performance for mavorixafor, if approved, may differ materially from projections; and other risks and uncertainties, including those described in the section entitled \u201cRisk Factors\u201d in X4\u2019s Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission (SEC) on May 4, 2023, and in other filings X4 makes with the SEC from time to time. X4 undertakes no obligation to update the information contained in this press release to reflect new events or circumstances, except as required by law.<\/p>\n<p>\n        <strong>Contacts:<\/strong><br \/>\n        <br \/>Daniel Ferry (investors)<br \/>Managing Director, LifeSci Advisors<br \/><a href=\"https:\/\/www.globenewswire.com\/Tracker?data=tYk3iHUvGoBO8N-c72jTV8z-YE0hn4uIoVD0F2aXNhnB7MLmP7pVUvVSlhu8lqyrtEzK6sPG3asASdoBtbp0uqxqYy_mUvvEPQiOsugh8hzdiDu4mceaNIebzHnLGQaH\" rel=\"nofollow noopener\" target=\"_blank\">daniel@lifesciadvisors.com<\/a><br \/>(617) 430-7576<\/p>\n<p>Brett Whelan (media)<br \/>LifeSci Communications<br \/><a href=\"https:\/\/www.globenewswire.com\/Tracker?data=51rXXPY2LMp7j2OMXWmkaLiHLEZK2O8_1ZNuXHpW8MAn525ARdBXrBKjLn5nqgzu3SvtX-4a1Kzj_MutFtcmseBH4oT2DKHgWRRszkZy7B0=\" rel=\"nofollow noopener\" target=\"_blank\">bwhelan@lifescicomms.com<\/a><\/p>\n<p>      <img decoding=\"async\" class=\"__GNW8366DE3E__IMG\" src=\"https:\/\/www.globenewswire.com\/newsroom\/ti?nf=ODkxNTUzOSM1Nzk1NTkzIzUwMDA3MjE4MQ==\" \/><br \/>\n      <br \/>\n      <img decoding=\"async\" src=\"https:\/\/ml.globenewswire.com\/media\/Yzc0YWFkNGQtN2Q3ZC00YzMzLWE1MTMtNjQyZWRhYzIyZmQ0LTUwMDA3MjE4MQ==\/tiny\/X4-Pharmaceuticals.png\" \/>\n    <\/div>\n<div class=\"mw_contactinfo\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Submission supported by positive results from global, pivotal 4WHIM Phase 3 clinical trial BOSTON, Sept. 05, 2023 (GLOBE NEWSWIRE) &#8212; X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced the submission of a New Drug Application (NDA) to the United States Food and Drug Administration (FDA) for the approval of once-daily, oral mavorixafor to treat individuals aged 12 and older with WHIM (Warts, Hypogammaglobulinemia, Infections, and Myelokathexis) syndrome, a rare, primary immunodeficiency. \u201cThe submission of our first NDA is a significant milestone in X4&#8217;s journey to transform the care of those living with rare immunodeficiencies,\u201d said Paula Ragan, Ph.D., President and Chief Executive Officer of X4 Pharmaceuticals. &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.marketnewsdesk.com\/index.php\/x4-pharmaceuticals-announces-submission-of-new-drug-application-nda-to-u-s-fda-for-mavorixafor-in-whim-syndrome\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;X4 Pharmaceuticals Announces Submission of New Drug Application (NDA) to U.S. FDA for Mavorixafor in WHIM Syndrome&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-781851","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - 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