New pill helps smokers kick the habit in major trial

NCT ID NCT05206370

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This phase 3 trial tested cytisinicline, a plant-based pill, in 792 adult smokers who wanted to quit. Participants took the pill or a placebo for 6 or 12 weeks, plus brief behavioral support. The study measured smoking abstinence using carbon monoxide tests. Results showed that cytisinicline helped more people quit smoking compared to placebo, offering a potential new option for smoking cessation.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
Cytisinicline (also known as cytisine), a plant-based pill to reduce nicotine cravings
What this could lead to
If successful, this could provide a new, affordable, and effective medication to help people quit smoking, reducing smoking-related diseases.
What could go wrong
This is a completed phase 3 trial, but results may not apply to all smokers. Long-term abstinence beyond 24 weeks is not yet confirmed, and side effects like nausea or insomnia are possible.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Smoking Cessation

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Accel Research Sites - DeLand Clinical Research Unit

    DeLand, Florida, 32720, United States

  • Affinity Health Corp

    Oak Brook, Illinois, 60523, United States

  • Alliance for Multispecialty Research, LLC

    Fort Myers, Florida, 33912, United States

  • Aventiv Research Inc

    Columbus, Ohio, 43212, United States

  • Clinical Research Associates, Inc.

    Nashville, Tennessee, 37203, United States

  • Global Medical Institutes LLC; Princeton Medical Institute

    Princeton, New Jersey, 08540, United States

  • Health Research of Hampton Toads, Inc

    Newport News, Virginia, 23606, United States

  • Intend Research

    Norman, Oklahoma, 73069, United States

  • Jacksonville Center for Clinical Research

    Jacksonville, Florida, 32216, United States

  • MediSphere Medical Research Center, LLC

    Evansville, Indiana, 47714, United States

  • Trial Management Associates, LLC

    Wilmington, North Carolina, 28403, United States

  • Velocity Clinical Research, Inc.

    Cleveland, Ohio, 44122, United States

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