Poster #1654 highlights clinically meaningful and durable increases in circulating neutrophils observed with mavorixafor treatment +/- G-CSF over 6-month study Poster #1669 highlights findings that investigators were willing and able to reduce injectable G-CSF while maintaining ANC levels in the normal range Data continue to strengthen confidence in potential success of ongoing global, pivotal Phase 3 trial evaluating... Read More

BOSTON, June 10, 2025 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that the U.S. Food and Drug Administration (FDA) has granted Fast Track designation to mavorixafor, an oral CXCR4 antagonist, for the treatment of chronic neutropenia (CN). The company is currently conducting a global, pivotal Phase 3 clinical... Read More

BOSTON, June 02, 2025 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that, effective on May 30, 2025, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019 Inducement Plan is used exclusively for the... Read More

Meaningful and durable increases in functional neutrophils observed over 6-month trial with oral once-daily mavorixafor Majority of physicians and chronic neutropenia participants chose to significantly reduce G-CSF dosing when using mavorixafor in combination therapy BOSTON, May 14, 2025 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune... Read More

4WARD Phase 3 chronic neutropenia trial in full swing;full enrollment on track for 3Q or 4Q 2025 and top-line data in 2H 2026 Additional analyses of mavorixafor clinical trial data increase confidence in successful outcome of 4WARD trial XOLREMDI ® net U.S. revenues $3.5 million since May 2024 launch Conference call and webcast today at 8:30 am ET BOSTON, May 01, 2025 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a... Read More

BOSTON, April 24, 2025 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that it will report financial results for the first quarter ended March 31, 2025 and provide corporate updates on Thursday, May 1, 2025. The company will host a conference call and webcast on the same day at 8:30 a.m. EDT. The conference call... Read More

BOSTON, April 24, 2025 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that its board of directors has determined to effect a one-for-thirty reverse stock split of the company’s Common Stock, par value $0.001 per share. The reverse stock split will take effect at 12:01 a.m. Eastern Time on April 28, 2025, and the... Read More

BOSTON, April 23, 2025 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that, effective on January 31, 2025, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019 Inducement Plan is used exclusively for... Read More

Phase 3 4WARD trial in chronic neutropenia now activated at ~90% of targeted trial sites; full enrollment expected in 3Q or 4Q 2025; top-line data anticipated in 2H 2026 4WARD trial protocol refined, increasing confidence in successful outcome 2024 XOLREMDI® net revenues $2.6 million since May launch; company expects ramp up in 2025 as targeted physician outreach increases patient finding and pull-through Conference call and... Read More

BOSTON, March 11, 2025 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that it will report financial results for the fourth quarter and full year ended December 31, 2024 and provide corporate updates on Tuesday, March 25, 2025. The company will host a conference call and webcast on the same day at 8:30 a.m. ET. The... Read More

BOSTON and DUBAI, United Arab Emirates, Feb. 19, 2025 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, and taiba rare , a taiba Healthcare company with specialty & orphan drug marketing, sales, and distribution expertise in the MENA (Middle East and North Africa) region, today announced that they have entered into an exclusive... Read More

Full enrollment in ongoing global, pivotal Phase 3 clinical trial in chronic neutropenia on track for mid-2025 Right-sizing commercial efforts to optimize XOLREMDI promotion and support U.S. WHIM syndrome community Restructuring impact expected to extend cash runway into first half of 2026 BOSTON, Feb. 06, 2025 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare... Read More

BOSTON, Feb. 03, 2025 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that, effective on January 31, 2025, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019 Inducement Plan is used exclusively for the... Read More

Submission supported by positive results from global, Phase 3 4WHIM clinical trial; U.S. regulatory approval in WHIM syndrome granted in 2024 Decision on MAA expected in 1H 2026 BOSTON, Jan. 24, 2025 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that its Marketing Authorization Application (MAA) for mavorixafor... Read More

X4 to receive a €28.5 million upfront payment and up to €226 million in potential regulatory and commercial milestone payments in addition to tiered, double-digit royalties up to the mid-twenties Upfront non-dilutive funds strengthen X4’s balance sheet as enrollment ramps up in the company’s global Phase 3 clinical trial in chronic neutropenia Agreement underscores Norgine’s commitment to bring transformative therapies to... Read More

BOSTON, Dec. 04, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced its upcoming presentations at the 66th American Society of Hematology (ASH) Annual Meeting and Exposition, including a trial-in-progress poster on the ongoing pivotal Phase 3 clinical trial exploring the use of mavorixafor, an oral CXCR4... Read More

BOSTON, Dec. 03, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that, effective on December 2, 2024, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019 Inducement Plan is used exclusively for the... Read More

BOSTON, Nov. 26, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that management will participate in the 36 th Annual Piper Sandler Healthcare Conference, taking place in New York, NY on December 3-5, 2024. 36 th Annual Piper Sandler Healthcare Conference Date: Tuesday, December 3, 2024 Time: 11:00AM ET... Read More

BOSTON, Nov. 14, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that management will participate in the Stifel 2024 Healthcare Conference, taking place in New York, NY on November 18-19, 2024. Stifel 2024 Healthcare Conference Date : Monday, November 18, 2024 Time : 4:10PM ET Format: Fireside Chat Location:... Read More

Positive results from completed Phase 2 study of mavorixafor in chronic neutropenia (CN) announced today Pivotal Phase 3 trial of mavorixafor in CN on track to fully enroll in mid-2025 U.S. launch of XOLREMDI® (mavorixafor) in WHIM underway; submission of Marketing Authorization Application (MAA) to European Medicines Agency (EMA) expected by early 2025 Conference call and webcast today at 8:00 a.m. ET BOSTON, Nov. 13, 2024... Read More

Mavorixafor durably and meaningfully elevated participants’ mean absolute neutrophil counts (ANC) Mavorixafor enabled substantial reductions in G-CSF dosing while maintaining mean ANC at normal levels Phase 2 study results and new analysis confirming functionality of neutrophils in sub-study participants bolster confidence in achieving success in Phase 3 4WARD trial Company conference call and webcast today at 8:00 am ET... Read More

BOSTON, Nov. 01, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that, effective on October 31, 2024, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019 Inducement Plan is used exclusively for the... Read More

BOSTON, Oct. 24, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals, Inc. (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that it will report financial results for the third quarter ended September 30, 2024 and present results from its concluded Phase 2 clinical trial evaluating mavorixafor in people with chronic neutropenia on Wednesday, November 13, 2024.... Read More

BOSTON, Oct. 01, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that, effective on September 30, 2024, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019 Inducement Plan is used exclusively for... Read More

BOSTON, Sept. 03, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that, effective on August 30, 2024, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019 Inducement Plan is used exclusively for the... Read More

BOSTON, Aug. 28, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that management will be participating in three upcoming investor conferences in September 2024: Morgan Stanley 22 nd Annual Global Healthcare Conference Date : Wednesday, September 4, 2024 Time : 2:35 PM EDT Format : Fireside Chat and 1x1... Read More

First U.S. commercial sales of XOLREMDI™ (mavorixafor) following April 2024 FDA approval Positive interim data from Phase 2 trial of mavorixafor in chronic neutropenia; full trial results expected in November 2024 Initiated global, pivotal Phase 3 trial of mavorixafor in chronic neutropenia Conference call to be hosted today at 8:30 a.m. ET BOSTON, Aug. 08, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a... Read More

BOSTON, Aug. 01, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that, effective on July 31, 2024, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019 Inducement Plan is used exclusively for the... Read More

BOSTON, July 30, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals, Inc. (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that it will report financial results for the second quarter ended June 30, 2024 and provide corporate updates on Thursday, August 8, 2024. The company will host a conference call and webcast on the same day at 8:30 a.m. ET. The conference... Read More

100% of evaluable participants at Month 6 achieved target absolute neutrophil count (ANC) increase with once-daily, oral mavorixafor +/- stable-dose G-CSF as of the interim analysis data cut-off date Durable mean ANC levels above the lower limit of normal for CN were achieved for participants on mavorixafor monotherapy at Months 3 and 6 Company webinar today at 8:00 am ET will detail the interim clinical results and feature... Read More

BOSTON, June 03, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that, effective on May 31, 2024, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019 Inducement Plan is used exclusively for the... Read More

BOSTON, May 29, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that it will host a virtual investor event on Thursday, June 27, 2024 at 8:00 am ET. To register for the event, click here . The event will focus on new interim results from an ongoing Phase 2 clinical trial exploring the use of mavorixafor as a... Read More

BOSTON, May 13, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that management will be participating in the upcoming H.C. Wainwright 2 nd Annual BioConnect Investor Conference, taking place on May 20 th , 2024, at the Nasdaq Stock Exchange in New York City. H.C. Wainwright 2 nd Annual BioConnect Investor... Read More

$125 million of non-dilutive capital extends projected cash runway into late 2025, excluding expected commercial sales from XOLREMDI™ (mavorixafor) XOLREMDI, the first drug indicated in patients with WHIM syndrome, received U.S. FDA approval in April 2024 BOSTON, May 09, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today... Read More

U.S. launch underway for XOLREMDI™ (mavorixafor) in WHIM syndrome XOLREMDI Phase 3 4WHIM clinical trial data published online in Blood, the journal of the American Society of Hematology Presentation of interim clinical data from the ongoing mavorixafor Phase 2 trial in chronic neutropenia expected at a planned company investor event in June 2024 Conference call to be hosted today at 8:30 a.m. ET BOSTON, May 07, 2024 (GLOBE... Read More

BOSTON, May 01, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that, effective on April 30, 2024, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019 Inducement Plan is used exclusively for the... Read More

BOSTON, April 30, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals, Inc. (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that it will be reporting financial results for the first quarter ended March 31, 2024 and providing corporate updates on Tuesday, May 7, 2024. The company will host a conference call and webcast on the same day at 8:30 a.m. ET. The... Read More

XOLREMDI targets CXCR4 pathway dysfunction, the underlying cause of WHIM syndrome Breakthrough Therapy approval follows Priority Review of 4WHIM Phase 3 clinical trial data X4 granted Rare Pediatric Disease Priority Review Voucher (PRV) concurrent with approval Conference call and webcast to be hosted today at 8:30 am ET BOSTON, April 29, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve... Read More

BOSTON, April 02, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that, effective on April 1, 2024, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019 Inducement Plan is used exclusively for the... Read More

BOSTON, April 01, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that management will be participating in the upcoming Needham 23 rd Annual Healthcare Conference being held virtually from April 8-11, 2024, and the Piper Sandler Spring Biopharma Symposium being held in Boston from April 16-17, 2024. Needham 23... Read More

Launch preparations underway in anticipation of possible U.S. approval of mavorixafor for WHIM syndrome; U.S. PDUFA target action date set for April 30, 2024 Additional Phase 2 clinical data and initiation of global Phase 3 clinical trial of mavorixafor for the treatment of certain chronic neutropenic disorders expected in 1H24 Conference call to be hosted today at 8:30 a.m. ET BOSTON, March 21, 2024 (GLOBE NEWSWIRE) -- X4... Read More

BOSTON, March 12, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals, Inc. (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that it will be reporting financial results for the fourth-quarter and full year ended December 31, 2023 and providing corporate updates on Thursday, March 21, 2024. The company will host a conference call and webcast on the same day at... Read More

BOSTON, March 01, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that, effective on February 29, 2024, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019 Inducement Plan is used exclusively for... Read More

BOSTON, Feb. 01, 2024 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that, effective on January 31, 2024, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019 Inducement Plan is used exclusively for the... Read More

Initial data continue to support advancement of mavorixafor into pivotal, global Phase 3 trial in certain chronic neutropenic disorders; company on track to initiate in 1H 2024 X4 expects to present additional CN Phase 2 clinical trial data in 1H 2024 BOSTON, Dec. 09, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today... Read More

BOSTON, Dec. 04, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that, effective on November 30, 2023, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019 Inducement Plan is used exclusively for... Read More

BOSTON, Nov. 10, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that management will be participating in fireside chats at the upcoming Stifel Healthcare Conference being held in New York City, from November 14-15, 2023, and the Piper Sandler 35 th Annual Healthcare Conference being held in New York City,... Read More

U.S. New Drug Application for mavorixafor in WHIM syndrome accepted for Priority Review, establishing a PDUFA target action date of April 30, 2024; X4 eligible to receive Priority Review Voucher if approved Presentations of additional data from ongoing Phase 2 clinical trial of mavorixafor in chronic neutropenia expected in 4Q 2023 and 1H 2024 Pivotal, global Phase 3 trial of mavorixafor in chronic neutropenia expected to... Read More

BOSTON, Nov. 02, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals, Inc. (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that it will be reporting financial results for the third quarter ended September 30, 2023 and providing corporate updates on Thursday, November 9, 2023. The company will host a conference call and webcast on the same day at 8:30 a.m. ET.... Read More

BOSTON, Nov. 01, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that, effective on October 31, 2023, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019 Inducement Plan is used exclusively for the... Read More

FDA sets a Prescription Drug User Fee Act (PDUFA) target action date of April 30, 2024 If the NDA is approved, company eligible to receive a Priority Review Voucher (PRV) resulting from mavorixafor’s rare pediatric designation in WHIM syndrome NDA supported by positive results from global, pivotal 4WHIM Phase 3 clinical trial BOSTON, Oct. 31, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to... Read More

BOSTON, Oct. 18, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced the appointment of R. Keith Woods as an independent director to the company’s Board of Directors. “We are thrilled to welcome Keith to the X4 Board of Directors,” said Paula Ragan, Ph.D., President and Chief Executive Officer of X4... Read More

BOSTON, Oct. 02, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that, effective on September 29, 2023, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019 Inducement Plan is used exclusively for... Read More

BOSTON, Sept. 19, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that management will be participating in a fireside chat at the upcoming Cantor Global Healthcare Conference being held in New York City, from September 26-28, 2023. Details are as follows: Conference : Cantor Global Healthcare Conference Date :... Read More

BOSTON, Sept. 06, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a company driven to improve the lives of people with rare diseases of the immune system, today announced that management will be participating in a fireside chat at the upcoming Morgan Stanley 21 st Annual Global Healthcare Conference in New York City. Details are as follows: Conference : Morgan Stanley 21 st Annual Global Healthcare Conference... Read More

BOSTON, Sept. 05, 2023 (GLOBE NEWSWIRE) -- 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,... Read More

BOSTON, Sept. 01, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a leader in the discovery and development of novel small-molecule therapeutics to benefit people with rare diseases of the immune system, today announced that, effective on August 31, 2023, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The... Read More

Submission of first U.S. New Drug Application for mavorixafor in WHIM syndrome on track for early 2H 2023 Emerging data from ongoing Phase 2 trial in certain chronic neutropenic disorders show mavorixafor durably increased neutrophil counts and enabled reductions in G-CSF dosing New market research confirms significant initial target population for mavorixafor given high unmet needs within U.S. chronic neutropenia (CN)... Read More

BOSTON, Aug. 08, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals, Inc. (Nasdaq: XFOR), a leader in the discovery and development of novel small molecule therapeutics to benefit patients with diseases of the immune system, today announced that Christophe Arbet-Engels, MD, PhD, will be joining the company as its new Chief Medical Officer, bringing more than 25 years’ experience in strategic global drug development across a wide... Read More

BOSTON, Aug. 03, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a leader in the discovery and development of novel small-molecule therapeutics to benefit people with rare diseases of the immune system, today announced the closing of a $115 million loan facility with Hercules Capital, Inc. (NYSE: HTGC) (“Hercules”). The company also announced that it drew down $22.5 million upon the transaction’s closing. “This... Read More

BOSTON, Aug. 02, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals, Inc. (Nasdaq: XFOR), a leader in the discovery and development of novel small molecule therapeutics to benefit patients with diseases of the immune system, today announced that it will be reporting financial results for the second quarter ended June 30, 2023, and providing corporate and clinical program updates on Thursday, August 10, 2023. The company will host a... Read More

BOSTON, June 30, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a leader in the discovery and development of novel small-molecule therapeutics to benefit people with rare diseases of the immune system, today announced that, effective on June 29, 2023, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The... Read More

BOSTON, June 13, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a leader in the discovery and development of novel small-molecule therapeutics to benefit people with rare diseases of the immune system, today announced that it expects to be added to the broad-market Russell 3000 Index at the conclusion of the 2023 Russell indexes annual reconstitution, effective after the U.S. market opens on June 26, 2023,... Read More

BOSTON, June 02, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a leader in the discovery and development of novel small-molecule therapeutics to benefit people with rare diseases of the immune system, today announced that, effective on May 31, 2023, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The... Read More

~60% reduction in annualized infection rate seen in the mavorixafor arm vs. placebo (p<0.01) >75% reduction in the percentage of individuals experiencing severe infections (Grade 3 or higher) in the mavorixafor group vs. placebo group >70% reduction in mean total days with infections (2 weeks on mavorixafor treatment vs. 7 weeks on placebo) Company on track to submit NDA for mavorixafor early in 2H 2023 following completion... Read More

BOSTON, May 16, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals, Inc. (Nasdaq: XFOR), a leader in the discovery and development of novel small molecule therapeutics to benefit people with rare diseases of the immune system, today announced that it has agreed to sell an aggregate of 42,784,203 shares of common stock (or pre-funded warrants in lieu thereof) to certain institutional accredited investors in a private investment in... Read More

Company to host webinar event on May 16 th presenting new clinical data from the 4WHIM Phase 3 trial; oral presentation to follow on May 21 st at the 2023 Clinical Immunology Society (CIS) Annual Meeting U.S. NDA submission of mavorixafor for WHIM syndrome on track for early 2H 2023 Presentation of data from ongoing Phase 2 chronic neutropenia trial and clarity on regulatory path forward anticipated in 2Q/3Q 2023 Conference... Read More

BOSTON, April 26, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals, Inc. (Nasdaq: XFOR), a leader in the discovery and development of novel small molecule therapeutics to benefit patients with diseases of the immune system, today announced that it will be reporting financial results for the first quarter ended March 31, 2023 on Thursday, May 4, 2023. The company will host a conference call and webcast on the same day at 8:30 a.m.... Read More

X4 to host virtual investor event on Tuesday, May 16 CIS oral presentation to take place on Sunday, May 21 BOSTON, April 12, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals, Inc. (Nasdaq: XFOR), a leader in the discovery and development of novel small molecule therapeutics to benefit patients with diseases of the immune system, today announced that its submitted late-breaker abstract entitled " Results of a Phase 3 Trial of an... Read More

BOSTON, April 04, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a leader in the discovery and development of novel small-molecule therapeutics to benefit people with diseases of the immune system, today announced that, effective on March 31, 2023, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The 2019... Read More

Upcoming expected milestones for investigational therapy mavorixafor in WHIM syndrome include: presentation of additional Phase 3 clinical data in 2Q 2023, NDA submission in early 2H 2023, and potential U.S. launch in 1H 2024 Announcement of data from ongoing chronic neutropenia Phase 2 trial and clarity on regulatory path forward planned in 2Q or 3Q 2023 Conference call to be hosted today at 9:00 a.m. ET BOSTON, March 21,... Read More

BOSTON, March 07, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals, Inc. (Nasdaq: XFOR), a leader in the discovery and development of novel small molecule therapeutics to benefit patients with diseases of the immune system, today announced that it will be reporting financial results for the fourth quarter and twelve months ended December 31, 2022 on March 21, 2023. The company will host a conference call and webcast on the same... Read More

BOSTON, March 02, 2023 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a leader in the discovery and development of novel small-molecule therapeutics to benefit people with diseases of the immune system, today announced that, effective on February 28, 2023, the company issued inducement awards to new employees under the X4 Pharmaceuticals, Inc. 2019 Inducement Equity Incentive Plan (the “2019 Inducement Plan”). The... Read More

Oral presentation further details positive data from mavorixafor Phase 1b clinical trial in people with chronic idiopathic, cyclic, or congenital neutropenia Medical claims research defines an estimated 50,000 U.S. chronic neutropenia patient population; patient survey voices the significant unmet medical needs BOSTON, Dec. 12, 2022 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals (Nasdaq: XFOR), a leader in the discovery and... Read More

BOSTON, Dec. 07, 2022 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals, Inc. (Nasdaq: XFOR), a leader in the discovery and development of novel small-molecule therapeutics to benefit people with diseases of the immune system, announced today the pricing of its previously announced underwritten public offering of 52,300,000 shares of its common stock and, in lieu of common stock, pre-funded warrants to purchase 6,800,000 shares of its... Read More

BOSTON, Dec. 06, 2022 (GLOBE NEWSWIRE) -- X4 Pharmaceuticals, Inc. (Nasdaq: XFOR), a leader in the discovery and development of novel small-molecule therapeutics to benefit people with diseases of the immune system, announced today that it has commenced an underwritten public offering of shares of its common stock (or pre-funded warrants to purchase its common stock in lieu thereof) and accompanying warrants to purchase... Read More