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Achieve Life's Cytisinicline Shows Positive 52-Week Efficacy at CHEST 2026

Oct 21, 2026, 8:57 AM EDT1 sourcesAI-analyzed

Why it may matterVerify against the original reporting

Positive long-duration efficacy signals may lift sentiment and expectations for regulatory success; however, open-label data limit certainty, so upside depends on confirmatory trials and regulatory timing.

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Achieve Life Sciences announced positive 52-week efficacy results from the ORCA-OL long-term trial of cytisinicline for cigarette and e-cigarette cessation, presented at CHEST 2026. The open-label data show durable quit rates, including 39% quit among new cytisinicline users, supporting potential regulatory and commercial momentum, though results come from an open-label study, which tempers certainty.

Achieve reports positive 52-week ORCA-OL results for cytisinicline.
Nearly one in three previously-treated adults quit after one year.
39% of new cytisinicline users quit by year-end.
Data presented at CHEST 2026 in Phoenix.
Participants averaged mid-50s, many with chronic conditions.

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Achieve Life's Cytisinicline Shows Positive 52-Week Efficacy at CHEST 2026

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