NCT01120704

Evaluation of Treatments to Improve Smoking Cessation Medication Adherence

Project 3: Identifying Optimal Strategies of Increasing Smokers' Adherence to Cessation Medications

• Status: Completed
• Phase: Phase 4
• Study type: Interventional
• Enrollment: 544 (actual)
• Sponsor: University of Wisconsin, Madison · Academic / Other
• Sex: All
• Age: 18 Years – 99 Years
• Healthy volunteers: Not accepted

Summary

Many smokers fail to take their smoking cessation medication as recommended. This research is designed to identify treatments that improve the use of cessation medications and to determine whether an increase in medication use results in increased cessation success. This research will also identify treatments that help people stay quit after a quit attempt and will pioneer more efficient research methods.

Detailed description

Nonadherent use of smoking cessation medications is very common and highly associated with cessation failure. However, little is presently known about how to improve adherence and whether improved adherence will actually boost cessation success (i.e., its causal role is unknown). This research represents groundbreaking integration of 1) basic theory and data on tobacco dependence, adherence, and intervention mechanisms with 2) the state-of-the-art Intervention Optimization Cycle methodology. This methodology uses factorial designs to efficiently engineer and evaluate intervention components, and to develop an optimal comprehensive treatment package. Participants in Project 3 will be smokers (N = 544) visiting primary care clinics for a regular outpatient visit who, when asked, express an interest in quitting and agree to participate in a smoking cessation research study. The experiment will comprise five experimental factors (2X2X2X2X2), and participants will have a 50% chance of being assigned one of the levels of each factor. The five factors include one medication factor (medication duration: 8 vs. 26 weeks), one counseling factor (maintenance counseling vs. no maintenance counseling), and three adherence factors: 1) Cognitive Medication Adherence Counseling (C-MAC); C-MAC vs. no C-MAC; 2) electronic medication monitoring device (the Helping Hand) + Feedback vs. the medication monitoring device alone; and 3) automated adherence prompting phone calls vs. no prompting.

Conditions

• Smoking
• Smoking Cessation
• Adherence
• Nicotine Dependence
• Motivation

Interventions

Type	Name	Description
DRUG	Short Term Combination Nicotine Replacement Therapy (patch + gum)	IF participant smokes \>10 cigs/day AND is randomized to a 8 week condition: they will be asked to take one 21 mg patch/day for 4 weeks, THEN one 14 mg patch/day for 2 weeks, THEN one patch 7mg/day for 2 weeks.Participants will also be asked to use 4-mg gum every 1-2 hours (9 pieces maximum per day)for 6 weeks and decrease gum use over the 2 weeks prior to medication termination until down to one gum piece every 4-8 hours by the last week of treatment. IF participant smokes 5-10 cigs/day AND is randomized to the 8 week medication condition: they will be asked to take one 14 mg patch/day for 4 weeks, THEN one 7 mg patch/day for 4 weeks. Participants will also be asked to use 2-mg gum every 1-2 hours (9 pieces max per day)for 6 weeks and decrease gum use over the 2 weeks prior to medication termination until down to one gum piece every 4-8 hours by the last week of treatment.
DRUG	Long Term Combination Nicotine Replacement Therapy (patch + gum)	IF the participant smokes \>10 cigs/day AND is randomized to a 26 week medication condition: they will be asked to take one 21 mg patch per day for 22 weeks, THEN one 14 mg patch per day for 2 weeks, THEN one patch 7 mg patch per day for 2 weeks. Participants will also be asked to use one piece of one 4-mg- gum every 1-2 hours (9 pieces maximum per day)for 24 weeks and decrease gum use over the 2 weeks prior to medication termination until they are down to one gum piece every 4-8 hours by the last week of treatment. IF the participant smokes 5-10 cigs/day AND is randomized to a 26 week medication condition: they will be asked to take one 14 mg patch per day for 22 weeks, THEN one patch 7 mg patch per day for 4 weeks. Participants will also be asked to use one piece of 2-mg gum every 1-2 hours (9 pieces maximum per day)for 24 weeks and decrease gum use over the 2 weeks prior to medication termination until they are down to one gum piece every 4-8 hours by the last week of treatment.
BEHAVIORAL	Intensive Maintenance Counseling	Participants randomized to this condition will receive eight 15-minute phone counseling sessions at Weeks 3, 4, 6, 8, 10, 14, 18 \& 22. The counseling will encourage continued practice of coping skills, and avoidance of danger situations. Another emphasis will be the continued provision of social support as a means of enhancing motivation. Participants who have relapsed will receive counseling aimed at motivating and planning renewed quit attempts. Other aims are enhancing motivation, especially competence self-appraisals, providing intratreatment support, and encouraging pleasurable activities.
BEHAVIORAL	Cognitive Medication Adherence Counseling (CAM)	Participants randomized to this condition will be given a brief (10 minute) session of CAM treatment at both Visits 1 and 2. CAM will include information on NRT such as the following: NRT reduces withdrawal and urges; sustained use reduces the likelihood of relapse; willpower and medication make a good combination; NRT will help a lapsing smoker reachieve abstinence. The tailored counseling component of the CAM intervention is based on brief evaluation of the smoker's beliefs, concerns, and possible misconceptions about smoking cessation medications.
BEHAVIORAL	Electronic Medication Monitoring Device (the Helping Hand) + Feedback	If randomized to this condition, the case manager will give patients a computer-generated feedback sheet showing the patient's medication self-administration since the last visit. The case manager will provide problem-solving counseling regarding barriers to medication use. This problem-solving counseling intervention will be given in brief in-person sessions (three in-person sessions for those in the 8 week medication condition and five in-person sessions for those in the 26 week medication condition). Medication monitoring counseling will also occur via phone (two 10-minute sessions for those in the 8 week medication condition and four 10-minute sessions for those in the 26 week medication condition).
BEHAVIORAL	Automated Adherence Prompting Phone Calls	Participants in this condition will receive fully automated prompts with messages designed to encourage participants to take their medication. Adherence prompting calls will occur two times in the first week of the quit attempt, and then once a week in weeks 2, 3, 4, 5, and 7. Those in the 26-Week medication condition who are assigned to the active adherence prompting calls intervention, will receive one prompting call a week during Weeks 11, 15, 19 \& 23.

Timeline

• Start date: 2010-06-01
• Primary completion: 2014-05-01
• Completion: 2014-05-01
• First posted: 2010-05-11
• Last updated: 2015-12-11
• Results posted: 2015-02-16

Locations

1 site across 1 country: United States