Primary Aims
The aims of the first phase (Stage Ia) of the project are:
1. To develop a specialized intervention targeting smoking cessation in head and neck, lung, breast, gastrointestinal, or genitourinary cancer patients who continue to smoke following diagnosis, which is based on Acceptance and Commitment Therapy (ACT) theory and clinical methods. This work will include:
a. The development of clinician and participant manuals which will be based on the integration of brief ACT protocols and a current ACT protocol for treating psychological stress in gynecological cancer patients
b. The development of a parallel training program and training materials for therapists
c. The training of therapists to deliver the intervention
The aims of the second phase (Phase Ib) of the project are:
2. To conduct a preliminary randomized trial with head and neck, lung, breast, gastrointestinal, or genitourinary cancer patients who continue to smoke following diagnosis, comparing the ACT smoking cessation treatment (ACT) to standard motivational and behavioral counseling (MBC) to evaluate the following:
a. Primary Outcome
To examine the effects of ACT on both short and long-term point prevalence and prolonged abstinence
b. Secondary Outcome
To examine the effects of ACT on short and long-term quality of life
3. To assess mediation of the treatment effect on abstinence by hypothesized mediators of the ACT and MBC treatments when a significant treatment effect is found, or estimating the mediation effects if treatment effects appear promising yet are not significant due to small sample size; and to evaluate the specificity of mediators to the ACT and MBC treatment models. We expect that the treatment will be mediated by reductions in experiential avoidance related to smoking and smoking cessation, and reductions in mental disengagement, a form of avoidant coping. In addition, we expect that hypothesized ACT mediators will be influenced by ACT and not MBC; and that the hypothesized MBC mediators will be influenced by MBC and not ACT. |