Assembly Biosciences Reports Interim Phase 1a Data from Clinical Study of Oral Entry Inhibitor Candidate ABI-6250 for Hepatitis Delta Virus – Data to date in single- and multiple-ascending dose cohorts of healthy participants demonstrate a four-day half-life for ABI-6250, supporting target daily oral dosing profile and dose-dependent elevations in biomarker of target engagement – – Further pharmacological assessment to be conducted in parallel with Phase 2 preparation – SOUTH SAN FRANCISCO, Calif., Aug. 06, 2025 (GLOBE NEWSWIRE) -- Assembly Biosciences, Inc. (Nasdaq: ASMB), a biotechnol...
Assembly Biosciences Reports Second Quarter 2025 Financial Results and Recent Updates – On track for proof-of-concept Phase 1b data no later than this fall in participants with recurrent genital herpes for long-acting herpes simplex virus (HSV) helicase-primase inhibitor candidates, ABI-5366 and ABI-1179 – – Positive topline data reported for Phase 1b study of ABI-4334, a next-generation highly potent capsid assembly modulator candidate, in participants with chronic hepatitis B virus (HBV) – – Interim data, including a biomarker for target engagement, reported from Phase 1a study in healt...
Assembly Biosciences Presents Data Highlighting Recurrent Genital Herpes Program at STI & HIV 2025 World Congress and International Herpesvirus Workshop – Phase 1a clinical data in healthy participants presented for both ABI-5366 and ABI-1179, novel long-acting herpes simplex virus helicase-primase inhibitor candidates – – Preclinical data and U.S. genital herpes prevalence and treatment patterns also highlighted – – Interim proof-of-concept Phase 1b data in participants with recurrent genital herpes expected for both candidates in fall 2025 – SOUTH SAN FRANCISCO, Calif...
Assembly Biosciences Doses First Participant in Phase 1b Portion of Phase 1a/b Clinical Trial of Investigational Long-Acting Herpes Simplex Virus Helicase-Primase Inhibitor ABI-1179 – Study will evaluate safety and antiviral activity of ABI-1179 in participants with recurrent genital herpes – – ABI-1179 IND cleared to support study expansion to sites in United States – – Phase 1b studies for ABI-1179 and ABI-5366 running concurrently with interim data for both candidates on track for fall 2025 – SOUTH SAN FRANCISCO, Calif., June 30, 2025 (GLOBE NEWSWIRE) -- Assembly Biosciences, Inc. (...
Assembly Biosciences Reports Positive Topline Results from Phase 1b Clinical Trial of Next-Generation Investigational Capsid Assembly Modulator ABI-4334 in Chronic Hepatitis B – Favorable safety and tolerability profile, as well as pharmacokinetics supporting once-daily oral dosing, continued to be observed in final 400 mg cohort – – Mean plasma HBV DNA reductions of 3.2 logs IU/mL over 28 days of treatment for 400 mg cohort consistent with findings in 150 mg cohort, supporting ability of 150 mg dose to achieve saturated inhibition of viral replication, as anticipated – – Trial completi...
Assembly Biosciences to Present During the Jefferies 2025 Global Healthcare Conference SOUTH SAN FRANCISCO, Calif., May 27, 2025 (GLOBE NEWSWIRE) -- Assembly Biosciences, Inc. (Nasdaq: ASMB), a biotechnology company developing innovative therapeutics targeting serious viral diseases, today announced that Jason Okazaki, chief executive officer and president, and Anuj Gaggar, MD, PhD, chief medical officer, will present in a fireside chat during the Jefferies 2025 Global Healthcare Conference at 8:45 a.m. Eastern Time on June 4, 2025. A live webcast will be available on the Events and Prese...
Assembly Biosciences Reports First Quarter 2025 Financial Results and Recent Updates – Ongoing clinical studies for four candidates on track with data expected in 2025, including interim Phase 1b data for long-acting helicase-primase inhibitors ABI-5366 and ABI-1179 anticipated in fall 2025 – – New data from multiple programs highlighted at ICAR, ESCMID and EASL 2025 – SOUTH SAN FRANCISCO, Calif., May 08, 2025 (GLOBE NEWSWIRE) -- Assembly Biosciences, Inc. (Nasdaq: ASMB), a biotechnology company developing innovative therapeutics targeting serious viral diseases, today reported fina...
New Preclinical Data for Assembly Biosciences’ Oral Hepatitis D Virus Entry Inhibitor ABI-6250 and Next-Generation Hepatitis B Virus Capsid Assembly Modulator ABI-4334 Presented at the EASL Congress 2025 – Late-breaker poster highlights preclinical profile of ABI-6250, currently in Phase 1a with data anticipated in Q3 2025 – – Second poster describes in vitro studies of effects on viral infection markers by ABI-4334, currently in Phase 1b with data anticipated in the first half of 2025 – SOUTH SAN FRANCISCO, Calif., May 07, 2025 (GLOBE NEWSWIRE) -- Assembly Biosciences, Inc. (Nasdaq...
Assembly Biosciences Presents New Data Highlighting Long-Acting Herpes Simplex Virus Candidate ABI-5366 and Genital Herpes Prevalence and Treatment Patterns at the 2025 ESCMID Congress – Clinical and preclinical data supporting dosing profile and tolerability for ABI-5366, a novel long-acting helicase-primase inhibitor candidate, featured in two poster presentations – – Additional poster presentation highlights new insights in genital herpes prevalence and treatment patterns in the U.S. – – ABI-5366 is currently being evaluated in ongoing Phase 1b clinical trial with interim proof-of-conc...
Assembly Biosciences Reports Year End 2024 Financial Results and Recent Highlights – Four development candidates in clinical studies with data anticipated this year, continuing rapid progress of antiviral pipeline – – Interim Phase 1b proof-of-concept data, including initial efficacy measures, anticipated in fall 2025 for ABI-5366 and ABI-1179, long-acting helicase-primase inhibitor candidates for recurrent genital herpes – SOUTH SAN FRANCISCO, Calif., March 20, 2025 (GLOBE NEWSWIRE) -- Assembly Biosciences, Inc. (Nasdaq: ASMB), a biotechnology company developing innovative therapeu...
Assembly Biosciences Doses First Participant in Phase 1a Clinical Study of Oral Entry Inhibitor Candidate ABI-6250 for Hepatitis Delta Virus – Phase 1a study will evaluate single and multiple ascending doses of ABI-6250 in healthy participants with data expected in Q3 2025 – – Biomarker of ABI-6250 target engagement, serum bile acids, will be assessed in addition to safety and pharmacokinetic measures – SOUTH SAN FRANCISCO, Calif., Feb. 26, 2025 (GLOBE NEWSWIRE) -- Assembly Biosciences, Inc. (Nasdaq: ASMB), a biotechnology company developing innovative therapeutics targeting ser...
Assembly Biosciences Reports Positive Interim Phase 1a Results from Clinical Trial Evaluating Long-Acting Helicase-Primase Inhibitor ABI-1179 in Development for Recurrent Genital Herpes – ABI-1179 was well-tolerated, with a half-life of approximately four days and high exposure across the dose range evaluated supporting the potential for once-weekly oral administration at a low dose – – Assembly Bio to move ABI-1179 directly into Phase 1b portion of the ongoing Phase 1a/b study in participants with recurrent genital herpes – – Phase 1b to run concurrently with ongoing Phase 1b study for A...
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Assembly Biosciences Reports Interim Phase 1b Results from Clinical Trial Evaluating Next-Generation Capsid Assembly Modulator Candidate ABI-4334 in Chronic Hepatitis B – ABI-4334 was well-tolerated with a favorable safety profile and half-life supporting once-daily oral dosing observed – – In the first 150 mg dose cohort, ABI-4334 showed strong antiviral activity with a mean reduction of 2.9 log IU/mL in plasma HBV DNA over 28 days of treatment – – Enrollment in final cohort of 400 mg ongoing with data anticipated in 1H 2025 – SOUTH SAN FRANCISCO, Calif., Dec. 26, 2024 (GLOBE NEWSWIR...
Assembly Biosciences Announces $30.1 Million Equity Investment and Accelerated Funding from Gilead to Advance Clinical Development Programs —Assembly Bio to receive approximately $20.1 million equity investment and $10 million in accelerated funding under the collaboration, extending cash runway to mid-2026— —Additional equity investment raises Gilead’s ownership stake in Assembly Bio to 29.9%— –Funding supports pipeline progress, including amendment to accelerate clinical development of Assembly Bio’s novel small molecule hepatitis D virus candidate ABI-6250— SOU...
Assembly Biosciences Reports Third Quarter 2024 Financial Results and Recent Updates Positive Phase 1a interim data released for ABI-5366, a long-acting HSV helicase-primase inhibitor candidate for recurrent genital herpes, supporting potential for once-weekly and once-monthly oral dosing First participants dosed in Phase 1b trial evaluating ABI-5366 in individuals with recurrent genital herpes with interim data expected in first half of 2025Phase 1b trial for ABI-4334, a next-generation highly potent capsid assembly modulator candidate, ongoing in participants with chronic HBV with interim...
Assembly Biosciences Reports Positive Interim Phase 1a Results from Clinical Trial Evaluating Long-Acting Helicase-Primase Inhibitor Candidate ABI-5366 – ABI-5366 was well-tolerated, with a favorable safety profile observed with exposure of up to 70 days – – Half-life of approximately 20 days supports once-weekly or once-monthly oral dosing; both dosing schedules will be explored in the Phase 1b portion of the study – – Screening of participants with recurrent genital herpes is now underway for Phase 1b – SOUTH SAN FRANCISCO, Calif., Sept. 23, 2024 (GLOBE NEWSWIRE) -- Assembly Bioscie...
Assembly Biosciences Reports Second Quarter 2024 Financial Results and Recent Updates Dosing initiated in healthy participants in Phase 1a/b trial for ABI-5366 targeting recurrent genital herpes, with interim Phase 1a first-in-human data expected in Q3 2024 and interim Phase 1b data in participants with recurrent genital herpes expected in first half of 2025Dosing initiated in Phase 1b trial for ABI-4334 in participants with chronic HBV infection, with interim Phase 1b data expected by end of yearTwo additional pipeline candidates, ABI-1179 and ABI-6250, anticipated to enter clinic by end o...
Assembly Biosciences Presents New Preclinical Data Highlighting Investigational Helicase-Primase Inhibitors at International Herpesvirus Workshop – Data from both ABI-5366 and ABI-1179, novel long-acting helicase-primase inhibitor candidates for recurrent genital herpes, to be presented – – Poster presentation highlights key preclinical data from ABI-5366 supporting its entry into ongoing Phase 1a/b clinical trials – – Oral and poster presentations feature first data presented from ABI-1179, expected to enter the clinic by the end of 2024 – SOUTH SAN FRANCISCO, Calif., July 15, 2024 (...
Assembly Biosciences Doses First Participant in Phase 1b Clinical Trial Evaluating Next-Generation Capsid Assembly Modulator Candidate ABI-4334 for the Treatment of Chronic Hepatitis B Virus Infection – Phase 1b study will evaluate safety, pharmacokinetic and efficacy endpoints in participants with chronic hepatitis B virus infection with interim data expected by the end of 2024 – SOUTH SAN FRANCISCO, Calif., June 18, 2024 (GLOBE NEWSWIRE) -- Assembly Biosciences, Inc. (Nasdaq: ASMB), a biotechnology company developing innovative therapeutics targeting serious viral diseases, today anno...
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