Enrollment Ongoing in Phase 3 C-BEYOND Trial for Treatment of HCV Full Phase 2 Results for Regimen of Bemnifosbuvir and Ruzasvir for HCV and Results from Three Additional Phase 1 Studies Sup porting Potential Best-in-Class Profile Presented at European Association for the Study of the Liver (EASL) Congress 2025 Virtual Investor Event with Key Opinion Leader Insights on HCV to be Held May 14 , 2025, at 10:00 AM ET BOSTON, May 12, 2025 (GLOBE NEWSWIRE) -- Atea Pharmaceuticals, Inc. (Nasdaq: AVIR) (Atea or Company), a clinical-stage biopharmaceutical company engaged in the discovery and development of oral antiviral therapeutics for serious viral diseases, today reported financial results for the first quarter ended March 31, 2025 and provided a business update. The Company's combination regimen of bemnifosbuvir (BEM), a nucleotide analog polymerase inhibitor, and ruzasvir (RZR), an NS5A inhibitor, is in Phase 3 development for the treatment of hepatitis C virus (HCV).

Full Results from Phase 2 Study Confirmed 98% Sustained Virologic Response at 12 Weeks Post-Treatment (SVR12) After Short 8-Week Treatment Duration for Regimen Results from Phase 1 Study Showed Low Risk for Drug-Drug Interactions with Regimen When Co-Administered with Standard HIV Treatment Regimen Bemnifosbuvir Was Generally Safe and Well Tolerated with No Dose Adjustment Needed in Phase 1 Studies in Participants with Hepatic or Renal Impairment Atea Pharmaceuticals to Host Virtual HCV KOL Panel on May 14, 2025 BOSTON, Mass., May 07, 2025 (GLOBE NEWSWIRE) -- Atea Pharmaceuticals, Inc. (Nasdaq: AVIR) (Atea or Company), a clinical-stage biopharmaceutical company engaged in the discovery and development of oral antiviral therapeutics for serious viral diseases, today presented results from the full cohort of patients (n=275) enrolled in its Phase 2 study evaluating the once-daily combination of bemnifosbuvir (BEM), an oral nucleotide NS5B polymerase inhibitor, and ruzasvir (RZR), an oral NS5A inhibitor, for the treatment of hepatitis C virus (HCV).

Panel to Discuss Current Challenges Encountered by Patients with HCV , Results from Atea's Phase 2 Study of the Regimen of Bemnifosbuvir and Ruzasvir, and What a New Optimized HCV Therapy Could Provide for Prescribers and Patients Event to Replace Atea's First Quarter 2025 Earnings Conference Call; Quarterly Calls to Resume with Second Quarter 2025 Financial Results BOSTON, May 01, 2025 (GLOBE NEWSWIRE) -- Atea Pharmaceuticals, Inc. (Nasdaq: AVIR) (“Atea” or “Company”), a clinical-stage biopharmaceutical company engaged in the discovery and development of oral antiviral therapeutics for serious viral diseases, today announced it will virtually host a hepatitis C virus (HCV) key opinion leader (KOL) panel discussion on topics related to the treatment of HCV on Wednesday, May 14, 2025 at 10:00 AM ET. Atea also announced that it plans to issue a press release and report its first quarter 2025 financial results after the market closes on Monday, May 12, 2025.

BOSTON, April 23, 2025 (GLOBE NEWSWIRE) -- Atea Pharmaceuticals, Inc. (Nasdaq: AVIR) (Atea or Company), a clinical-stage biopharmaceutical company engaged in the discovery and development of oral antiviral therapeutics for serious viral diseases, today announced that the full results from the Phase 2 clinical study of Atea's regimen of bemnifosbuvir, a nucleotide analog polymerase inhibitor, and ruzasvir, an NS5A inhibitor, for the treatment of hepatitis C virus (HCV) infection will be presented at the European Association for the Study of the Liver (EASL) Congress 2025. In addition, pharmacokinetic and safety results supporting the regimen's profile will also be presented. The EASL Congress 2025 will take place May 7-10 in Amsterdam, Netherlands.

BOSTON, April 17, 2025 (GLOBE NEWSWIRE) -- Atea Pharmaceuticals, Inc. (Nasdaq: AVIR) (“Atea” or “Company”), a clinical-stage biopharmaceutical company engaged in the discovery and development of oral antiviral therapeutics for serious viral diseases, today announced the appointment of Howard H. Berman, Ph.D.

Regimen has Potential Best-in-Class Profile with Short Treatment Duration, Low Risk for Drug-Drug Interactions and Convenience with No Food Effect

States Change in Board Composition Sorely Needed Expresses Support for Radoff-JEC Group Nominees STAMFORD, Texas, March 31, 2025 (GLOBE NEWSWIRE) -- Driver Management Company LLC (“Driver”) today delivered a letter to Atea Pharmaceuticals, Inc. (“Atea” or the “Company”) withdrawing a notice of nomination delivered to the Company on March 19, 2025 in order not to compete against the highly qualified candidates nominated for election to the Company's board of directors (the “Board”) by Bradley L. Radoff and Michael Torok (together with certain of their affiliates, the “Radoff-JEC Group”).

BOSTON, March 26, 2025 (GLOBE NEWSWIRE) -- Atea Pharmaceuticals, Inc. (Nasdaq: AVIR) (Atea or Company), a clinical-stage biopharmaceutical company engaged in the discovery and development of oral antiviral therapeutics for serious viral diseases, today issued the following statement:

HOUSTON--(BUSINESS WIRE)--Bradley L. Radoff and Michael Torok (together with certain of their affiliates, the “Radoff-JEC Group”), who collectively own approximately 5.4% of the outstanding stock of Atea Pharmaceuticals, Inc. (NASDAQ: AVIR) (“Atea” or the “Company”), today announced that they have nominated three highly qualified director candidates – Howard H. Berman, James Flynn and Mr. Torok – for election to the Company's Board of Directors (the “Board”) at the 2025 Annual Meeting of Stockh.

BOSTON, March 21, 2025 (GLOBE NEWSWIRE) -- Atea Pharmaceuticals, Inc. (Nasdaq: AVIR) (Atea or Company) a clinical-stage biopharmaceutical company engaged in the discovery and development of oral antiviral therapeutics for serious viral diseases, today confirmed receipt of a notice from Bradley L. Radoff that he intends to nominate three director candidates to stand for election to the Atea Board of Directors at the Company's 2025 Annual Meeting of Stockholders.