Achieve Life Sciences is a specialty pharmaceutical company committed to addressing the global smoking health and nicotine addiction epidemic through the development and commercialization of cytisinicline.

Cytisinicline (also known as cytisine) is a plant-based alkaloid with a high binding affinity to the α4β2 nicotine receptor. Over the past 20 years, it is estimated that over 20 million people have used cytisinicline to help combat nicotine addiction.  Achieve’s focus is to address the global smoking health epidemic by making cytisinicline widely available.

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The Phase 3 ORCA-3 trial is now enrolling and will evaluate the efficacy and safety of 3 mg cytisinicline dosed 3 times daily compared to placebo in 750 adult smokers at 15 clinical sites.

orca-3 logo

The Phase 3 ORCA-2 trial of cytisinicline has reached its enrollment target of 750 adult smokers. 

ORCA-2 is designed to evaluate the safety and efficacy of 3 mg cytisinicline dosed 3 times daily compared to placebo in adult cigarette smokers who want to quit.

The trial is currently being conducted at 17 sites in the U.S.

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Positive Phase 2b ORCA-1 Results Reported

ORCA-2 clinical trial site locations. Click image to enlarge.

In RAUORA study, led by Dr. Natalie Walker – Associate Professor at the University of Auckland, cytisinicline-treaded subjects experienced significantly fewer side effects and were 55% more likely to quit smoking compared to those who received Chantix®.

Chantix® is a registered trademark of Pfizer Inc.

  • RAUORA trial infographic

Smoking is a global public health epidemic responsible for the loss of over 8 million lives annually.



Cytisinicline is a plant-based smoking cessation treatment currently approved in Central and Eastern Europe.

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ORCA Program

Clinical Trials

ORCA: Ongoing Research of Cytisinicline for Addiction.

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Achieve is a specialty pharmaceutical company focused global development of cytisinicline for smoking cessation.

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Smoking is the #1 cause of preventable deaths worldwide.

According to the Centers for Disease Control and Prevention (CDC), 70% of current smokers expressed desire to quit, 55% attempted to quit, only 7% succeeded in quitting in the past year.