Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Naltrexone and Varenicline: Weight Gain and Tolerability in Smokers
Brief Summary: The purpose of this study is to determine whether the combination of naltrexone (Depade) and varenicline (Chantix) minimizes post-smoking cessation weight gain and how well the combination is tolerated.


Options:
A: Arm Label: Bupropion; Type: EXPERIMENTAL; Interventions: Drug: Bupropion, Behavioral: Smoking Cessation Counseling | Arm Label: Varenicline; Type: EXPERIMENTAL; Interventions: Drug: Varenicline, Behavioral: Smoking Cessation Counseling | Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo, Behavioral: Smoking Cessation Counseling | Intervention Type: DRUG; Name: Bupropion; Assigned to Arm(s): Bupropion | Intervention Type: DRUG; Name: Varenicline; Assigned to Arm(s): Varenicline | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Placebo | Intervention Type: BEHAVIORAL; Name: Smoking Cessation Counseling; Assigned to Arm(s): Bupropion, Placebo, Varenicline
B: Arm Label: Electronic cigarette condition; Type: EXPERIMENTAL; Interventions: Drug: Electronic cigarette with nicotine (ECwN) plus placebo tablets of varenicline | Arm Label: Varenicline condition; Type: ACTIVE_COMPARATOR; Interventions: Drug: Electronic cigarette without nicotine (ECwN) plus active varenicline tablets | Arm Label: Placebo condition; Type: PLACEBO_COMPARATOR; Interventions: Drug: Electronic cigarette without nicotine (ECwoN) plus placebo tablets of varenicline | Intervention Type: DRUG; Name: Electronic cigarette without nicotine (ECwN) plus active varenicline tablets; Assigned to Arm(s): Varenicline condition | Intervention Type: DRUG; Name: Electronic cigarette without nicotine (ECwoN) plus placebo tablets of varenicline; Assigned to Arm(s): Placebo condition | Intervention Type: DRUG; Name: Electronic cigarette with nicotine (ECwN) plus placebo tablets of varenicline; Assigned to Arm(s): Electronic cigarette condition
C: Arm Label: Scheduled Gradual Reduction + Varenicline; Type: EXPERIMENTAL; Interventions: Other: Scheduled Gradual Reduction + Varenicline | Arm Label: Scheduled Gradual Reduction + Placebo Drug; Type: EXPERIMENTAL; Interventions: Other: Scheduled Gradual Reduction + Placebo Drug | Arm Label: Basic Advice + Varenicline; Type: EXPERIMENTAL; Interventions: Other: Basic Advice + Varenicline | Arm Label: Basic Advice + Placebo Drug; Type: PLACEBO_COMPARATOR; Interventions: Other: Basic Advice + Placebo Drug | Intervention Type: OTHER; Name: Scheduled Gradual Reduction + Varenicline; Assigned to Arm(s): Scheduled Gradual Reduction + Varenicline | Intervention Type: OTHER; Name: Scheduled Gradual Reduction + Placebo Drug; Assigned to Arm(s): Scheduled Gradual Reduction + Placebo Drug | Intervention Type: OTHER; Name: Basic Advice + Varenicline; Assigned to Arm(s): Basic Advice + Varenicline | Intervention Type: OTHER; Name: Basic Advice + Placebo Drug; Assigned to Arm(s): Basic Advice + Placebo Drug
D: Arm Label: 1; Type: EXPERIMENTAL; Interventions: Drug: Naltrexone, Drug: Varenicline | Arm Label: 2; Type: PLACEBO_COMPARATOR; Interventions: Drug: Varenicline | Intervention Type: DRUG; Name: Naltrexone; Assigned to Arm(s): 1 | Intervention Type: DRUG; Name: Varenicline; Assigned to Arm(s): 1, 2

Answer: D