Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Long-term Varenicline Treatment for Smoking Cessation
Brief Summary: This is a clinical study of the efficacy and safety of up to 52 weeks of varenicline therapy in conjunction with individual counseling for smoking cessation. Adult volunteers in generally good health, smoking 5 or more cigarettes per day, will receive 13 weeks of open-label varenicline therapy. At 12 weeks after their target quit date, they will be assigned in a random, double-blind manner to either 40 additional weeks of varenicline or placebo. It is hypothesized that biochemically-confirmed abstinence rates will be higher for the varenicline group at 52 weeks. Participants will be followed for an additional 26 weeks post-treatment.


Options:
A: Arm Label: Varenicline + Active Tailored Dose; Type: EXPERIMENTAL; Interventions: Drug: Varenicline | Arm Label: Varenicline + Placebo Tailored Dose; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo, Drug: Varenicline | Intervention Type: DRUG; Name: Varenicline; Assigned to Arm(s): Varenicline + Active Tailored Dose | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Varenicline + Placebo Tailored Dose | Intervention Type: DRUG; Name: Varenicline; Assigned to Arm(s): Varenicline + Active Tailored Dose, Varenicline + Placebo Tailored Dose
B: Arm Label: 1; Type: EXPERIMENTAL; Interventions: Drug: 300 mg/day bupropion-sr | Arm Label: 2; Type: PLACEBO_COMPARATOR; Interventions: Drug: 0 mg/day bupropion-sr | Intervention Type: DRUG; Name: 300 mg/day bupropion-sr; Assigned to Arm(s): 1 | Intervention Type: DRUG; Name: 0 mg/day bupropion-sr; Assigned to Arm(s): 2
C: Arm Label: Extended treatment; Type: EXPERIMENTAL; Interventions: Drug: varenicline, Behavioral: Individual smoking cessation counseling | Arm Label: Standard treatment; Type: ACTIVE_COMPARATOR; Interventions: Drug: varenicline, Behavioral: Individual smoking cessation counseling | Intervention Type: DRUG; Name: varenicline; Assigned to Arm(s): Extended treatment, Standard treatment | Intervention Type: DRUG; Name: varenicline; Assigned to Arm(s): Extended treatment, Standard treatment | Intervention Type: BEHAVIORAL; Name: Individual smoking cessation counseling; Assigned to Arm(s): Extended treatment, Standard treatment
D: Arm Label: NRT arm; Type: ACTIVE_COMPARATOR; Interventions: Drug: Nicotine Replacement Therapy (NRT) | Arm Label: NRT and HIV Tailored Quit Smoking Counseling; Type: ACTIVE_COMPARATOR; Interventions: Drug: Nicotine Replacement Therapy (NRT), Behavioral: HIV Tailored Quit Smoking Counseling | Arm Label: Varenicline (VR) Arm; Type: ACTIVE_COMPARATOR; Interventions: Drug: Varenicline | Arm Label: Varenicline (VR) and HIV Tailored Quit Smoking Counseling; Type: ACTIVE_COMPARATOR; Interventions: Drug: Varenicline, Behavioral: HIV Tailored Quit Smoking Counseling | Intervention Type: DRUG; Name: Nicotine Replacement Therapy (NRT); Assigned to Arm(s): NRT and HIV Tailored Quit Smoking Counseling, NRT arm | Intervention Type: DRUG; Name: Varenicline; Assigned to Arm(s): Varenicline (VR) Arm, Varenicline (VR) and HIV Tailored Quit Smoking Counseling | Intervention Type: BEHAVIORAL; Name: HIV Tailored Quit Smoking Counseling; Assigned to Arm(s): NRT and HIV Tailored Quit Smoking Counseling, Varenicline (VR) and HIV Tailored Quit Smoking Counseling

Answer: C