AnaptysBio Reports Positive ANB019 Top-line Phase 1 Clinical Trial Results
Robust Half-Life and Extended Pharmacodynamic Activity Following a Single Dose of ANB019
Supports Advancement of ANB019 into Phase 2 Trials for IL-36-Associated Orphan Inflammatory Diseases
In the double-blind, placebo-controlled healthy volunteer Phase 1 trial, 36 subjects were administered a single subcutaneous or intravenous dose of ANB019 ranging between 10 mg and 750 mg, 18 subjects were administered multiple ascending doses of ANB019 intravenously ranging between 40 mg and 300 mg weekly for four consecutive weeks and 18 subjects were dosed with placebo. All subjects in the single and multiple ascending dose cohorts have completed dosing. This interim analysis was conducted after the 85-day, post-dosing monitoring period has been completed for the single ascending dose cohorts while monitoring is on-going for the multiple ascending dose cohorts.
ANB019 was well-tolerated by all subjects and no dose-limiting toxicities were observed to date. The most frequent treatment-emergent adverse events observed in the single ascending dose cohorts were mild upper respiratory tract infections in 10 of 36 (28%) subjects dosed with ANB019 versus six of 12 (50%) subjects dosed with placebo. No serious adverse events were reported among the single ascending dose cohorts through completion of monitoring, and none have been observed in the multiple ascending dose cohorts to date.
The in vivo half-life of ANB019 was approximately 28 days for both subcutaneous and intravenous routes of administration, with bioavailability of approximately 90%. A single dose of ANB019 at certain dose levels was able to completely suppress IL-36 cytokine function for 85 days, as measured using an ex vivo pharmacodynamic assay.
“We are thrilled to advance the development of ANB019 for patients suffering from the debilitating effects of GPP and PPP,” said
GPP is a life-threatening, rare, systemic inflammatory disorder that, based on analysis of publicly available data sources and interviews with physicians and key opinion leaders in the field,
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 anticipated timing of the release of detailed results from ANB019’s Phase 1 clinical trial, and the possibility and timing of commencement of Phase 2 clinical trials of ANB019 for the treatment of generalized pustular psoriasis and palmo-plantar pustular psoriasis, and AnaptysBio’s ability to further advance the development of ANB019 for the treatment of patients with these diseases. Statements including words such as “plan,” “continue,” “expect,” or “ongoing” and statements in the future tense are forward-looking statements. Forward-looking statements are subject to risks and uncertainties that may cause the company’s actual activities or results to differ materially from those expressed or implied in any forward-looking statement, including risks and uncertainties related to the company’s 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’s ability to fund development activities and achieve development goals, the company’s ability to protect intellectual property and other risks and uncertainties described under the heading “Risk Factors” in documents the company files from time to time with the
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