168 studies found for:    smoking placebo | Open Studies
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Rank Status Study
1 Recruiting Placebo-controlled Trial of Bupropion for Smoking Cessation in Pregnant Women
Conditions: Smoking;   Nicotine Dependence
Interventions: Drug: Bupropion;   Drug: Placebo
2 Not yet recruiting Varenicline and Combined Nicotine Replacement Therapy (NRT) for Smoking Cessation
Condition: Tobacco Use Cessation
Interventions: Drug: Varenicline;   Other: Placebo Patch;   Drug: Nicotine Patch;   Other: Placebo Lozenges;   Drug: Nicotine Lozenge;   Behavioral: Questionnaires;   Behavioral: Counseling;   Behavioral: Phone Calls
3 Not yet recruiting Reward Sensitivity and Pharmacotherapy for Smoking Cessation
Condition: Tobacco Use Cessation
Interventions: Drug: Varenicline;   Drug: Nicotine Patch;   Drug: Placebo Patch;   Drug: Placebo Tablet;   Behavioral: Questionnaires;   Behavioral: Counseling Sessions;   Other: Lab Session;   Other: Saliva Test
4 Recruiting Guanfacine Clinical Trial for Smoking Cessation
Condition: Smoking Cessation
Interventions: Drug: Guanfacine;   Drug: Placebo
5 Recruiting Nicotine Replacement for Smoking Cessation During Pregnancy
Conditions: Nicotine Dependence;   Smoking Cessation
Intervention: Drug: Nicotrol Inhaler
6 Unknown  Comparative Study of SR Bupropion for Adolescent Smoking Cessation
Conditions: Smoking;   Smoking Cessation
Interventions: Drug: Bupropion;   Drug: Placebo
7 Recruiting Efficacy And Safety Of Smoking Cessation With Varenicline Tartrate In Diabetic Smokers: (DIASMOKE)
Conditions: Smoking Cessation;   Diabetes
Interventions: Drug: varenicline;   Drug: placebo tablet is made of lactose
8 Recruiting Vitamin C to Decrease Effects of Smoking in Pregnancy on Infant Lung Function
Conditions: Pulmonary Function; Newborn, Abnormal;   Infant Wheeze;   In-utero Nicotine;   Second Hand Smoke
Interventions: Dietary Supplement: Vitamin C +prenatal vitamin;   Dietary Supplement: Placebo tablet+prenatal vitamin
9 Unknown  Smoking Cessation Program in the Preadmission Clinic
Condition: Smoking
Interventions: Behavioral: Smoking counseling;   Drug: varenicline;   Drug: placebo
10 Recruiting Novel Smoking Cessation Drug for Schizophrenia
Condition: Smoking Cessation
Intervention: Drug: Novel Drug or Placebo
11 Recruiting A Safety and Cognitive Function Study of EVP-6124 Versus Placebo in Subjects With Nicotine Dependence
Conditions: Nicotine Dependence;   Smoking Cessation
Interventions: Drug: EVP-6124;   Drug: Placebo Capsule;   Drug: NicoDerm CQ Patch (Active);   Drug: NRT Patch (Placebo);   Behavioral: Brief Supportive and Behavioral Treatment
12 Recruiting Acute and Chronic Nicotine Modulation of Reinforcement Learning
Condition: Nicotine Addiction.
Interventions: Drug: Nicotine polacrilex;   Drug: Placebo;   Other: satiety;   Other: abstinence
13 Not yet recruiting Pilot Study of Nicotine Nasal Spray and Varenicline on Smoking in Methadone-Maintained Patients
Conditions: Cigarette Smoking;   Methadone Maintenance
Interventions: Drug: Nicotine Nasal Spray;   Drug: Varenicline;   Drug: Placebo Nasal Spray;   Drug: Placebo Varenicline
14 Recruiting Varenicline for Nicotine Dependence Among Those With HIV/AIDS
Condition: Nicotine Dependence
Interventions: Drug: Varenicline;   Drug: Placebo;   Behavioral: Smoking Cessation Counseling
15 Recruiting Bupropion for Smoking Cessation During Pregnancy
Conditions: Pregnancy Related;   Tobacco Use Disorder
Interventions: Drug: bupropion SR 150 mg tablets or matched placebo;   Behavioral: Smoking Cessation Counseling
16 Recruiting A Smoking Intervention Study Using Scheduled Gradual Reduction With Varenicline to Help With Cessation
Condition: Nicotine Addiction
Interventions: Other: Scheduled Gradual Reduction + Varenicline;   Other: Scheduled Gradual Reduction + Placebo Drug;   Other: Basic Advice + Varenicline;   Other: Basic Advice + Placebo Drug
17 Not yet recruiting Early In-hospital Initiation of Pharmacotherapy for Smoking Cessation, Patients After ACS
Conditions: Acute Coronary Syndrome;   Smoking Cessation
Interventions: Drug: Varenicline;   Drug: placebo
18 Unknown  Effect of Daily Nicotine Patch Application on Mechanical Ventilation Weaning in Smoking Patients
Conditions: Smoking;   Mechanical Ventilation;   Intensive Care
Interventions: Drug: Nicotine patch;   Drug: Placebo
19 Recruiting Smoking Cessation Study In Healthy Adolescent Smokers
Condition: Smoking Cessation
Interventions: Drug: Varenicline 1mg BID;   Drug: Varenicline 0.5mg BID;   Drug: Placebo
20 Unknown  Varenicline for Cognitive Deficits and Cigarette Smoking in Schizophrenia - Efficacy and Predictors
Conditions: Schizophrenia;   Cigarette Smoking
Interventions: Drug: Varenicline;   Drug: Placebo for varenicline

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Indicates status has not been verified in more than two years