Cardiovascular Outcomes Study of Naltrexone SR/Bupropion SR in Overweight and Obese Subjects With Cardiovascular Risk Factors (The Light Study)
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ClinicalTrials.gov Identifier: NCT01601704 |
Recruitment Status :
Terminated
First Posted : May 18, 2012
Results First Posted : February 27, 2017
Last Update Posted : February 27, 2017
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Obesity Overweight | Drug: NB32 Drug: PBO Behavioral: Weight Management Program | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 8910 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | A Multicenter, Randomized, Double-Blind, Placebo-Controlled Study Assessing the Occurrence of Major Adverse Cardiovascular Events (MACE) in Overweight and Obese Subjects With Cardiovascular Risk Factors Receiving Naltrexone SR/Bupropion SR |
Study Start Date : | June 2012 |
Actual Primary Completion Date : | August 2015 |
Actual Study Completion Date : | August 2015 |

Arm | Intervention/treatment |
---|---|
Experimental: NB32 |
Drug: NB32
Naltrexone SR 32 mg/Bupropion SR 360 mg/day. Administered in addition to the weight management program.
Other Name: CONTRAVE Behavioral: Weight Management Program A comprehensive weight management program will be administered in addition to the subject's study medication assignment. The program includes internet counseling by an accredited health and fitness professional and a nutrition and exercise program with goal setting and educational and tracking tools.
Other Name: WeightMate (Tm) |
Placebo Comparator: PBO |
Drug: PBO
Placebo. Administered in addition to the weight management program. Behavioral: Weight Management Program A comprehensive weight management program will be administered in addition to the subject's study medication assignment. The program includes internet counseling by an accredited health and fitness professional and a nutrition and exercise program with goal setting and educational and tracking tools.
Other Name: WeightMate (Tm) |
- Percentage of Participants With a Confirmed Occurrence of Major Adverse Cardiovascular Event (MACE) [ Time Frame: Confirmed occurrence of event between Day 1 (randomization) and up to a maximum of 4 years of follow-up ]The primary endpoint is the time from randomization to the first confirmed occurrence of any event within the primary MACE composite (defined as cardiovascular death, nonfatal myocardial infarction, or nonfatal stroke). Due to early termination of the study, pre-planned 50% interim analysis is considered the primary analysis for outcome measures. The pre-planned 50% interim analysis was conducted when 50% of the total planned MACE were observed.
- Percentage of Participants With a Confirmed Occurrence of Cardiovascular Death, Nonfatal Myocardial Infarction, Nonfatal Stroke, or Nonfatal Unstable Angina Requiring Hospitalization [ Time Frame: Confirmed occurrence of event between Day 1 (randomization) and up to a maximum of 4 years of follow-up ]Due to early termination of the study, the pre-planned 50% interim analysis is considered the primary analysis for outcome measures.
- Percentage of Participants With a Confirmed Occurrence of Cardiovascular Death (Including Fatal Myocardial Infarction, Fatal Stroke) [ Time Frame: Confirmed occurrence of event between Day 1 (randomization) and up to a maximum of 4 years of follow-up ]Due to early termination of the study, the pre-planned 50% interim analysis is considered the primary analysis for outcome measures.
- Percentage of Participants With a Confirmed Occurrence of Myocardial Infarction (Nonfatal or Fatal) [ Time Frame: Confirmed occurrence of event between Day 1 (randomization) and up to a maximum of 4 years of follow-up ]Due to early termination of the study, the pre-planned 50% interim analysis is considered the primary analysis for outcome measures.
- Percentage of Participants With a Confirmed Occurrence of Stroke (Nonfatal or Fatal) [ Time Frame: Confirmed occurrence of event between Day 1 (randomization) and up to a maximum of 4 years of follow-up ]Due to early termination of the study, the pre-planned 50% interim analysis is considered the primary analysis for outcome measures.

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Ages Eligible for Study: | 45 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- ≥50 years of age (women) or ≥45 years of age (men)
- Body mass index (BMI) ≥27 kg/m2 and ≤50 kg/m2
- Waist circumference ≥88 cm (women) or ≥102 cm (men)
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At increased risk of adverse cardiovascular outcomes:
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Cardiovascular disease (confirmed diagnosis or at high likelihood of cardiovascular disease) with at least one of the following:
- History of documented myocardial infarction >3 months prior to screening
- History of coronary revascularization
- History of carotid or peripheral revascularization
- Angina with ischemic changes (resting ECG), ECG changes on a graded exercise test (GXT), or positive cardiac imaging study
- Ankle brachial index <0.9 (by simple palpation) within prior 2 years
- ≥50% stenosis of a coronary, carotid, or lower extremity artery within prior 2 years
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AND/OR
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Type 2 diabetes mellitus with at least 2 of the following:
- Hypertension (controlled with or without pharmacotherapy at <145/95 mm Hg)
- Dyslipidemia requiring pharmacotherapy
- Documented low HDL cholesterol (<50 mg/dL in women or <40 mg/dL in men) within prior 12 months
- Current tobacco smoker
Exclusion Criteria:
- Myocardial infarction within 3 months prior to screening
- Angina pectoris Grade III or IV as per the Canadian Cardiovascular Society grading scheme
- Clinical history of cerebrovascular disease (stroke)
- History of tachyarrhythmia other than sinus tachycardia
- Planned bariatric surgery, cardiac surgery, or coronary angioplasty
- History of seizures (including febrile seizures), cranial trauma, or other conditions that predispose the subject to seizures
- History of mania or current diagnosis of active psychosis, active bulimia or anorexia nervosa (binge eating disorder is not exclusionary)
- Any condition with life expectancy anticipated to be less than 4 years (e.g., congestive heart failure NYHA Class 3 or 4)

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01601704

Study Director: | Medical Director Clinical Science | Takeda |
Responsible Party: | Orexigen Therapeutics, Inc |
ClinicalTrials.gov Identifier: | NCT01601704 |
Other Study ID Numbers: |
NB-CVOT The Light Study ( Other Identifier: Takeda ) U1111-1162-4981 ( Registry Identifier: WHO ) |
First Posted: | May 18, 2012 Key Record Dates |
Results First Posted: | February 27, 2017 |
Last Update Posted: | February 27, 2017 |
Last Verified: | April 2016 |
Body Weight Bupropion Cardiovascular Diseases Diabetes Mellitus Diabetes Mellitus, Type 2 Endocrine System Diseases Glucose Metabolism Disorders Heart Diseases |
Metabolic Diseases Narcotic Antagonists Naltrexone Nutrition Disorders Obesity Overnutrition Overweight |
Overweight Overnutrition Nutrition Disorders |
Body Weight Bupropion hydrochloride, naltrexone hydrochoride drug combination Anti-Obesity Agents |