Title

Comparative Effectiveness of Cystine Versus Nicotine Replacement Therapy
Comparative Effectiveness of Cystine Versus Nicotine Replacement Therapy (NRT) in the National Smoking Cessation Program of Mongolia: A Pragmatic Non-Inferiority Trial
  • Phase

    Phase 3
  • Study Type

    Interventional
  • Status

    Recruiting
  • Study Participants

    700
A pragmatic, single blinded, randomized, controlled non-inferiority trial of Cytisine versus Nicotine Replacement Therapy for continuous abstinence is conducted in the government run primary health hospitals in Mongolia.
Rationale: In Mongolia, smoking cessation assistance in the governmental health sector consists of behavioral counseling and a 3-week regimen of the NRT patch that costs 175 USD. This cost for low income adults limits effectiveness. A 2014 study documented the superiority and lower cost (<20 USD) of Cytisine versus NRT for continuous abstinence. Trial investigators are testing the comparative effectiveness of Cytisine in the "real life setting" of their national health care system and, if proven effective, will include coverage for Cytisine in the national health plan.

Research Question/Objective: To determine whether a 25 day course of Cytisine tablets is at least as effective as 25 days of NRT in helping smokers remain abstinent for at least one month.

Design: A pragmatic, single blinded, randomized, controlled non-inferiority trial.

Setting: Nine governmental primary care centers in Ulaanbaatar, Mongolia, and outskirts.

Participants: Mongolian adult smokers referred to government-run addiction units.

Intervention and procedures: Participants are randomized to 5 weeks of treatment (n=352) or usual care (n=352) and a 6-month follow-up. The treatment consists of a 25-day course of Cytisine tablets and behavioral counseling. Usual care consists of 25 days of NRT and behavioral counseling.

Measurements: The primary outcome is continuous abstinence (< 5 cigarettes smoked since quit date) at 1 month. Secondary outcomes include 7-day point prevalence abstinence rates and adverse events.
Study Started
Jan 27
2022
Primary Completion
Jan 31
2024
Anticipated
Study Completion
Jan 31
2024
Anticipated
Last Update
Nov 18
2023

Drug Cytisine

Subjects will take a 25-day course of Cytisine tablets started during the 4 days before the quit date. They will be asked to reduce smoking during this time.

Drug Nicotine Replacement Therapy (NRT)

Subjects are asked to completely stop smoking on their quit day and use a daily NRT patch for 25 days.

Usual Care Group Active Comparator

Subjects are asked to completely stop smoking on their quit day and use a daily Nicotine Replacement Therapy (NRT) patch for 25 days.

Treatment Group Experimental

Subjects will start a 25-day course of Cytisine tablets started during the four days before the quit date and are asked to reduce smoking during this time.

Criteria

Inclusion Criteria:

Seeking smoking cessation treatment
Ages 18 years or older
Currently smoking > 5 cigarettes per day
Willingness to make quit attempt with pharmacotherapy
Able to provide verbal and written informed consent
Have telephone access

Exclusion Criteria:

Pregnancy or currently breastfeeding
Current users of NRT (patch, gum, lozenge)
Current users of non_NRT smoking cessation pharmacotherapy
Enrolled in another smoking cessation program (non-governmental)
Clinical disorder that contraindicates use of NRT or Cytisine (heart attack, stroke, severe angina within the past 2 weeks, uncontrolled hypertension, phaeochromocytoma, severe mental illness)
No Results Posted