A Peer Navigator Model to Improve Quit Attempts and Smoking Cessation Rates Among HIV-positive Smokers
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 66
- 试验地点
- 2
- 主要终点
- Feasibility and Acceptability
研究概览
简要总结
Effective antiretroviral therapy has led to an increased lifespan for persons living with HIV (PLWH), when diagnosed early and engaged in care. This transition to HIV as a chronic illness has resulted in cancer being a leading cause of morbidity and mortality in PLWH. The increased risk of cancer is due in part to a high prevalence of risk factors for cancer - most notably tobacco use. Smoking prevalence is substantially higher in PLWH (40%) compared with the general population (15%) and is associated with increased rates of lung cancers, and other malignancies. Furthermore, combined data from three national surveys showed that the proportion of deaths attributed to AIDS-defining cancers decreased from 2000 to 2010, while the proportion of deaths attributed to non-AIDS-related cancers increased significantly over the same period of time. Smoking cessation studies in PLWH have demonstrated disappointing outcomes, with low quit rates, poor adherence to therapy, and a lack of sustained abstinence. In an HIV and smoking review, it was suggested that research develop focused interventions that targets: 1) adherence to smoking cessation medications, 2) self-confidence for quitting, and 3) social support for smoking cessation. The investigators are proposing is specifically designed to address these 3 targets by using peer navigators to facilitate access to effective smoking treatments and to support abstinence. This study is highly innovative in its application of peer navigators to improve HIV-positive smokers' access to and utilization of existing resources to improve smoking cessation outcomes. The proposed study will provide initial evidence of whether targeting mechanisms of behavior change (self-efficacy and social support) during a quit attempt using peer navigators is effective at improving outcomes. If demonstrated to be successful, it has significant implications for the transformation of current clinical approaches to smoking cessation in HIV clinics. This approach could then be widely implemented to improve outcomes in this group of smokers.
详细描述
Aims - The specific aims are to examine: (1) the feasibility, acceptability, and initial efficacy of Peer Navigation for Social Support - Smoking in a 24-week randomized pilot study; (2) to compare the effect of Peer Navigation for Social Support, relative to standard care, on mechanisms thought to underlie smoking abstinence in HIV-positive smokers.
Methodology - The investigators will adapt an existing, highly effective peer navigation training program to increase engagement in care within the HIV clinic. The peer navigator for smoking cessation will be a former daily smoker who quit smoking 1-2 years ago and has remained smoke-free. The investigators will train the peer navigator, enroll 6 HIV-positive smokers to test the intervention, and finalize the protocol. The investigators will refine the protocol based on feedback from the peer navigator, the 6 participants, and the study nurses. Next, the investigators will conduct a pilot randomized trial (N = 72) to test the feasibility, acceptability, and initial efficacy of peer navigation in a randomized, 2-group, repeated measures design. The investigators will randomize 36 HIV-positive smokers to each condition: Peer Navigation or standard care. Assessments will be collected at baseline, and at 4-, 12-, and 24-weeks.
Participant Population - Participants for this study will include 78 participants recruited from Providence, Rhode Island.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single (Outcomes Assessor)
盲法说明
The research assistant will not be aware of study condition of the participants.
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •diagnosed with HIV
- •at least 18 years of age
- •smoke at least 5 cigarettes per day for longer than one year
- •have an exhaled carbon monoxide (CO) level greater than 5 at baseline
排除标准
- •currently using pharmacotherapy for smoking cessation
- •an unstable medical or psychiatric condition (defined as a medical or psychiatric hospitalization in the 30 days prior to enrollment)
- •experiencing psychotic symptoms
- •past-month suicidal ideation or past-year suicide attempt
- •pregnant or nursing
- •Blood pressure reading greater than 160/100
- •Heart Rate less than 45 or greater than 115
- •family/household member already enrolled
结局指标
主要结局
Feasibility and Acceptability
时间窗: Week 24
Session attendance (recorded as a continuous variable ranging from 1 to 4 study sessions).
Point prevalence abstinence
时间窗: Week 24
Biochemically verified 7-day point-prevalence abstinence. Point-prevalence abstinence will be verified by saliva cotinine radioimmune assay analysis (cutoff value of \< 15 ng/ml) for stated abstinence of 7 days or longer in those not currently using NRT or other nicotine-containing products. Self-report will always be overridden by objective verification of abstinence in the final analyses. Breath samples for CO will be obtained at each study visit.
Quit Attempts
时间窗: Week 24
A quit attempt is defined as a period of 24 hours of no cigarette smoking
Treatment Satisfaction
时间窗: Week 24
CSQ-8 will be used to compare treatment satisfaction by study condition.
次要结局
- Change in social support for quitting from baseline to week 12(Week 12)
- Change in self-efficacy for smoking cessation from baseline to week 12(Week 12)
研究者
Patricia Cioe
Assistant Professor
Brown University