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Anaptys Announces First Quarter 2025 Financial Results and Provides Business Update

• Announced rosnilimab, a depleter and agonist targeting PD-1+ T cells, achieved positive results in Phase 2b rheumatoid arthritis (RA) trial; to present updated clinical and translational data in the first week of June
  
• Initial Phase 2 data for rosnilimab in ulcerative colitis (UC) on track for Q4 2025
  
• Ongoing Phase 1a trials in healthy volunteers for ANB033, a CD122 antagonist, and ANB101, a BDCA2 modulator
  
• Authorized a $75 million Stock Repurchase Program in March 2025 and reiterating cash runway through year-end 2027
  

SAN DIEGO, May 05, 2025 (GLOBE NEWSWIRE) -- AnaptysBio, Inc. (Nasdaq: ANAB), a clinical-stage biotechnology company focused on delivering innovative immunology therapeutics, today reported financial results for the first quarter ended March 31, 2025, and provided a business update.

鈥淥ur lead program, rosnilimab, delivered impressive three-month Phase 2b efficacy, safety and tolerability data in rheumatoid arthritis (RA), with data through six months surpassing those of competitor all-active, head-to-head trials. We will report updated clinical and translational RA data in the first week of June, as well as initial Phase 2 ulcerative colitis (UC) data in Q4 2025, further defining rosnilimab鈥檚 game-changing potential,鈥� said Daniel Faga, president and chief executive officer of Anaptys. 鈥淲ith ANB033 and ANB101 progressing through Phase 1 trials, our autoimmune portfolio promises multiple catalysts over the next couple of years. We remain well-capitalized as we execute on our broad development plan for all three programs, while concurrently executing our $75 million stock repurchase program which are both further supported by substantial royalties and milestone payments anticipated from our GSK financial collaboration.鈥�

PORTFOLIO UPDATES

Rosnilimab (PD-1 depleter and agonist)

• Announced in February that subcutaneously administered rosnilimab, including two once-monthly doses, achieved positive results in 424-patient Phase 2b RA trial and highest-ever reported clinical disease activity index (CDAI) low disease activity (LDA) response over 6 months
  • Full press release can be found
  • Anaptys to host an investor call featuring Anaptys management and key opinion leaders in the first week of June to present rosnilimab鈥檚 updated Phase 2b clinical and translational data
    
    
• Enrollment ongoing for global Phase 2 trial in moderate-to-severe UC
  • 132-patient trial assessing two dose levels of subcutaneously administered rosnilimab vs. placebo (randomized 1:1:1)
    • Primary statistical analysis at Week 12 on well-established endpoints, including the primary endpoint of change from baseline in modified Mayo score (mMS) and supportive secondary endpoints of clinical response on mMS, clinical remission on mMS and endoscopic remission
    • All patients in all three study arms treat-through to Week 24 and remain blinded to treatment arm. Placebo-treated patients who achieved clinical response on partial modified Mayo score (pmMS) at Week 12 remain on placebo, while placebo-treated patients who are non-responders are crossed over to the high-dose rosnilimab treatment arm
    • Patients who are in clinical response on pmMS at Week 24 are eligible for an additional 26-week (50 weeks of total treatment) blinded treatment extension period (TEP)
  • Initial Phase 2 data anticipated in Q4 2025
    

ANB033 (CD122 antagonist)

• Enrollment ongoing for Phase 1a trial in healthy volunteers
  • Phase 1b indication to be disclosed at H2 2025 R&D event

ANB101 (BDCA2 modulator)

• Enrollment initiated for Phase 1a trial in healthy volunteers
  

COLLABORATION UPDATES

GSK Immuno-Oncology Financial Collaboration

• GSK announced strong commercial performance for Jemperli ($220 million in Q1 2025 sales) with >15% quarter-over-quarter growth
  • GSK announced the EMA approval of Jemperli plus chemotherapy for all adult patients with primary advanced or recurrent endometrial cancer in January 2025
    
    
• Anticipate receipt of a $75 million commercial sales milestone payment from GSK in either 2025 or 2026 once Jemperli achieves $1 billion in worldwide net sales in a calendar year
  
  
• GSK anticipates top-line data in mid-2025 from COSTAR Lung Phase 3 trial in patients with advanced NSCLC who have progressed on prior anti-PD-(L)1 therapy and platinum-based chemotherapy comparing docetaxel alone to cobolimab, a TIM-3 antagonist, plus dostarlimab, a PD-1 antagonist, plus docetaxel and to dostarlimab plus docetaxel
  
  
• Recent data published in The New England Journal of Medicine (NEJM) and presented at American Association for Cancer Research (AACR) demonstrated neoadjuvant treatment with dostarlimab resulted in organ preservation in a high proportion of patients (80% of 103 patients), including 100% (rectal; n=49), 100% (bladder; n=6), and 82% (colon; n=22) complete responses in April 2025
  • GSK anticipates top-line data in 2026 from AZUR-1 pivotal Phase 2 trial of dostarlimab monotherapy in patients with untreated stage II/III dMMR/MSI-H locally advanced rectal cancer
  • Jemperli received U.S. FDA Breakthrough Therapy Designation for this indication in December 2024
    

Vanda Imsidolimab Collaboration

• Announced an exclusive $15 million global out-license agreement with Vanda Pharmaceuticals to develop and commercialize imsidolimab (IL-36R antagonist), with Anaptys eligible to receive up to $35 million for future regulatory approvals and sales milestones, in addition to 10% royalty on global net sales
  • FDA BLA submission for generalized pustular psoriasis (GPP) expected in 2025
  • Full press release can be found

FINANCIAL UPDATES

Stock Repurchase Program and Cash Runway

• Authorized a Stock Repurchase Program in March 2025 of $75.0 million of the Company鈥檚 outstanding common stock
  
  
• Cash and investments of听$383.0 million听as of March 31, 2025, and reiterating cash runway through year-end 2027

First Quarter 2025 Financial Results

• Cash, cash equivalents and investments totaled $383.0 million as of March 31, 2025, compared to $420.8 million as of December听31, 2024, for a decrease of $37.8 million due primarily to operating activities and $4.4 million in shares repurchased offset by $15.0 million received from Vanda Pharmaceuticals for the license of imsidolimab.
  
  
• Collaboration revenue was $27.8 million for the three months ended March 31, 2025, compared to $7.2 million for the three months ended March 31, 2024. The increase is due to a $11.0 million increase in royalties recognized for sales of Jemperli and $9.6 million in revenue recognized for the Vanda license agreement.
  
  
• Research and development expenses were $41.2 million for the three months ended March 31, 2025, compared to $37.0 million for the three months ended March 31, 2024. The increase was due primarily to development costs relating to the Phase 2 trials in RA and UC for rosnilimab, and the Phase 1 trials for ANB033 and ANB101, offset by a decrease in development costs for imsidolimab and ANB032. The R&D non-cash, stock-based compensation expense was $4.4 for the three months ended March 31, 2025 as compared to $3.5 million in the same period in 2024.
  
  
• General and administrative expenses were $14.1 million for the three months ended March 31, 2025, compared to $12.3 million for the three months ended March 31, 2024. The increase was due primarily to transaction costs associated with the Vanda Pharmaceuticals license agreement. The G&A non-cash, stock-based compensation expense was $4.8 million for the three months ended March 31, 2025 as compared to $6.7 million in the same period in 2024.
  
  
• Net loss was $39.3 million for the three months ended March 31, 2025, or a net loss per share of $1.28, compared to a net loss of $43.9 million for the three months ended March 31, 2024, or a net loss per share of $1.64.
  

About Anaptys

Anaptys is a clinical-stage biotechnology company focused on delivering innovative immunology therapeutics for autoimmune and inflammatory diseases. Its lead program, rosnilimab, a depleter and agonist targeting PD-1+ T cells, is in a Phase 2b trial for the treatment of rheumatoid arthritis and in a Phase 2 trial for the treatment of ulcerative colitis. The company鈥檚 pipeline also includes ANB033, a CD122 antagonist, and ANB101, a BDCA2 modulator, in Phase 1 trials. Anaptys has also discovered multiple therapeutic antibodies licensed to GSK in a financial collaboration for immuno-oncology, including a PD-1 antagonist (Jemperli听(dostarlimab-gxly)) and a TIM-3 antagonist (cobolimab, GSK4069889). To learn more, visit听听or follow us on听.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995, including, but not limited to: the timing of the release of data from the Company鈥檚 clinical trials, including rosnilimab鈥檚 full Phase 2b clinical trial data in rheumatoid arthritis and top-line Phase 2 clinical trial data in ulcerative colitis; whether current trends in full clinical data in rheumatoid arthritis will be maintained once complete data becomes available; whether positive clinical trial results in rosnilimab鈥檚 Phase 2b clinical trial in rheumatoid arthritis increases the likelihood of getting positive results from rosnilimab鈥檚 Phase 2 clinical trial in ulcerative colitis; timing of the R&D event for ANB033; the potential to receive any royalties or milestone payments from the Vanda Pharmaceuticals license agreement; the potential to receive any additional milestones and royalties from the GSK collaboration; and the Company's projected cash runway. Statements including words such as 鈥減lan,鈥� 鈥渃ontinue,鈥� 鈥渆xpect,鈥� or 鈥渙ngoing鈥� and statements in the future tense are forward-looking statements. These forward-looking statements involve risks and uncertainties, as well as assumptions, which, if they do not fully materialize or prove incorrect, could cause its results to differ materially from those expressed or implied by such forward-looking statements. Forward-looking statements are subject to risks and uncertainties that may cause the company鈥檚 actual activities or results to differ significantly from those expressed in any forward-looking statement, including risks and uncertainties related to the company鈥檚 ability to advance its product candidates, obtain regulatory approval of and ultimately commercialize its product candidates, the timing and results of preclinical and clinical trials, the company鈥檚 ability to fund development activities and achieve development goals, the company鈥檚 ability to protect intellectual property and other risks and uncertainties described under the heading 鈥淩isk Factors鈥� in documents the company files from time to time with the Securities and Exchange Commission. These forward-looking statements speak only as of the date of this press release, and the company undertakes no obligation to revise or update any forward-looking statements to reflect events or circumstances after the date hereof.

Contact:
Nick Montemarano
Executive Director, Investor Relations
858.732.0178