Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Pharmacogenetics of Nicotine Addiction Treatment (PNAT)
Brief Summary: The purpose of this research program is to understand how a biomarker called the "nicotine metabolite ratio" (also referred to as NMR) may influence a smoker's ability to quit smoking.


Options:
A: Arm Label: Varenicline; Type: EXPERIMENTAL; Interventions: Drug: Varenicline | Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo | Intervention Type: DRUG; Name: Varenicline; Assigned to Arm(s): Varenicline | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Placebo
B: Arm Label: Nicotine Replacement Therapy Responder; Type: ACTIVE_COMPARATOR; Interventions: Drug: Nicotine Patches | Arm Label: Pre-Quit Rescue to Bupropion & Nicotine; Type: ACTIVE_COMPARATOR; Interventions: Drug: Nicotine patches, then bupropion & nicotine patches (Pre-Quit) | Arm Label: Pre-Quit Rescue to Varenicline; Type: ACTIVE_COMPARATOR; Interventions: Drug: Nicotine patches, then varenicline (Pre-Quit) | Arm Label: Pre-Quit Rescue to Nicotine; Type: ACTIVE_COMPARATOR; Interventions: Drug: Nicotine patches, then nicotine patches (Pre-Quit) | Arm Label: Post-Quit Rescue to Bupropion & Nicotine; Type: ACTIVE_COMPARATOR; Interventions: Drug: Nicotine patches, then bupropion & nicotine patches (Post-Quit) | Arm Label: Post-Quit Rescue to Varenicline; Type: ACTIVE_COMPARATOR; Interventions: Drug: Nicotine patches, then varenicline (Post-Quit) | Arm Label: Post-Quit Rescue to Nicotine; Type: ACTIVE_COMPARATOR; Interventions: Drug: Nicotine patches, then nicotine patches (Post-Quit) | Intervention Type: DRUG; Name: Nicotine Patches; Assigned to Arm(s): Nicotine Replacement Therapy Responder | Intervention Type: DRUG; Name: Nicotine patches, then bupropion & nicotine patches (Pre-Quit); Assigned to Arm(s): Pre-Quit Rescue to Bupropion & Nicotine | Intervention Type: DRUG; Name: Nicotine patches, then varenicline (Pre-Quit); Assigned to Arm(s): Pre-Quit Rescue to Varenicline | Intervention Type: DRUG; Name: Nicotine patches, then nicotine patches (Pre-Quit); Assigned to Arm(s): Pre-Quit Rescue to Nicotine | Intervention Type: DRUG; Name: Nicotine patches, then bupropion & nicotine patches (Post-Quit); Assigned to Arm(s): Post-Quit Rescue to Bupropion & Nicotine | Intervention Type: DRUG; Name: Nicotine patches, then varenicline (Post-Quit); Assigned to Arm(s): Post-Quit Rescue to Varenicline | Intervention Type: DRUG; Name: Nicotine patches, then nicotine patches (Post-Quit); Assigned to Arm(s): Post-Quit Rescue to Nicotine
C: Arm Label: Placebo (Slow Metabolizers); Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo | Arm Label: Varenicline (Slow Metabolizers); Type: ACTIVE_COMPARATOR; Interventions: Drug: Varenicline | Arm Label: Transdermal Nicotine (Slow Metabolizers); Type: ACTIVE_COMPARATOR; Interventions: Drug: Transdermal Nicotine | Arm Label: Placebo (Normal Metabolizers); Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo | Arm Label: Varenicline (Normal Metabolizers); Type: ACTIVE_COMPARATOR; Interventions: Drug: Varenicline | Arm Label: Transdermal Nicotine (Normal Metabolizers); Type: ACTIVE_COMPARATOR; Interventions: Drug: Transdermal Nicotine | Intervention Type: DRUG; Name: Varenicline; Assigned to Arm(s): Varenicline (Normal Metabolizers), Varenicline (Slow Metabolizers) | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Placebo (Normal Metabolizers), Placebo (Slow Metabolizers) | Intervention Type: DRUG; Name: Transdermal Nicotine; Assigned to Arm(s): Transdermal Nicotine (Normal Metabolizers), Transdermal Nicotine (Slow Metabolizers)
D: Intervention Type: BEHAVIORAL; Name: smoking cessation intervention; Assigned to Arm(s): N/A | Intervention Type: DRUG; Name: varenicline; Assigned to Arm(s): N/A | Intervention Type: OTHER; Name: counseling intervention; Assigned to Arm(s): N/A | Intervention Type: OTHER; Name: internet-based intervention; Assigned to Arm(s): N/A

Answer: C