Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Effectiveness of Using Social Networking Service to Prevent Smoking Relapse Among Self-reported Quitters: A Pilot Randomized Control Trial
Brief Summary: According to the Census \& Statistics Department, there are still 659,300 daily smokers (11.1%) in Hong Kong. Smoking is addictive, and it is difficult for some motivated smokers to quit without assistance. About 33.2% daily smokers in Hong Kong had tried quitting but they could not maintain abstinence. Relapse prevention is aimed at providing interventions to prevent relapse after starting the abstinence status. This pilot single-blind randomized controlled trial (proof of concept study) will test the effectiveness of social networking services for relapse prevention. The study will first recruit 6 quitters and 6 relapsers for a qualitative interview for the design of intervention. Then, the pilot-RCT trial will recruit 120 participants who have recently quitted smoking, and they will be randomly allocated to 2 intervention groups and one control group. The 2 intervention groups will be arranged to join a WhatsApp or Facebook group for receiving quitting advices from the group moderators and sharing quitting experience with other participants. All participants will receive a self-help booklet of relapse prevention, and will be followed up at 6 weeks, 3 months and 6 months. The primary outcome is the self-report relapse rate (Relapse is tentatively defined as smoking 5 cigarettes in 3 consecutive days since joining the RCT among the 3 study arms.


Options:
A: Arm Label: Group A; Type: NO_INTERVENTION; Interventions: N/A | Arm Label: Group B; Type: EXPERIMENTAL; Interventions: Behavioral: Quitline Service + 10 automated monitoring calls | Arm Label: Group C; Type: EXPERIMENTAL; Interventions: Behavioral: Quitline service + 20 automated monitoring calls | Intervention Type: BEHAVIORAL; Name: Quitline Service + 10 automated monitoring calls; Assigned to Arm(s): Group B | Intervention Type: BEHAVIORAL; Name: Quitline service + 20 automated monitoring calls; Assigned to Arm(s): Group C
B: Arm Label: virtual reality exposure therapy (VRET); Type: EXPERIMENTAL; Interventions: Other: virtual reality exposure treatment | Arm Label: cognitive and behavioral approaches therapy without VRET; Type: EXPERIMENTAL; Interventions: Other: cognitive and behavioral approaches therapy | Intervention Type: OTHER; Name: virtual reality exposure treatment; Assigned to Arm(s): virtual reality exposure therapy (VRET) | Intervention Type: OTHER; Name: cognitive and behavioral approaches therapy; Assigned to Arm(s): cognitive and behavioral approaches therapy without VRET
C: Arm Label: Receiving WhatsApp messages; Type: EXPERIMENTAL; Interventions: Behavioral: WhatsApp embedded in smoking cessation service | Arm Label: Not receiving WhatsApp messages; Type: NO_INTERVENTION; Interventions: N/A | Intervention Type: BEHAVIORAL; Name: WhatsApp embedded in smoking cessation service; Assigned to Arm(s): Receiving WhatsApp messages
D: Arm Label: WhatsApp; Type: EXPERIMENTAL; Interventions: Behavioral: WhatsApp | Arm Label: Facebook; Type: EXPERIMENTAL; Interventions: Behavioral: Facebook | Arm Label: Control; Type: NO_INTERVENTION; Interventions: N/A | Intervention Type: BEHAVIORAL; Name: WhatsApp; Assigned to Arm(s): WhatsApp | Intervention Type: BEHAVIORAL; Name: Facebook; Assigned to Arm(s): Facebook

Answer: D