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AnneMarie Levy, Stephen Daniels, Roger Hudson, Thomas Horman, Amanda Flynn, Yan Zhou, Francesco Leri
Contrave® is an adjunct pharmacotherapy for obesity that contains bupropion (BUP) and naltrexone (NTX). To further explore the psychopharmacology of this drug combination, male Sprague-Dawley rats were implanted with subcutaneous osmotic mini-pumps releasing: 40 mg/kg/day BUP, 4 mg/kg/day NTX, or 40 + 4 mg/kg/day BUP and NTX (BN). During 12 days of exposure, the animals were tested on operant intraoral self-administration (IOSA) of high fructose corn syrup (HFCS) on continuous (FR1) and progressive ratio (PR) schedules, on home cage drinking of HFCS, and on HFCS taste reactivity...
April 20, 2018: Neuropharmacology
G Gomez, F C Stanford
OBJECTIVE: Obesity is now the most prevalent chronic disease in the United States, which amounts to an estimated $147 billion in health care spending annually. The Affordable Care Act (ACA) enacted in 2010 included provisions for private and public health insurance plans that expanded coverage for lifestyle/behavior modification and bariatric surgery for the treatment of obesity. Pharmacotherapy, however, has not been included despite their evidence-based efficacy. We set out to investigate the coverage of Food and Drug Administration-approved medications for obesity within Medicare, Medicaid and ACA-established marketplace health insurance plans...
March 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
Sheldon H Preskorn
This column reviews the divergence between the approach to drug development in infectious disease, oncology, and immunology versus psychiatry. Between 2009 and 2016, 254 new drugs were approved. Of those, only 9 were for a psychiatric indication; another 5 were labeled to treat central nervous system disorders that are not considered psychiatric per se but are frequently found in individuals with psychiatric illnesses (eg, substantial weight gain). There were 2 additional new products for psychiatric indications that involved either a combination product (Contrave) or a prodrug for the production of aripiprazole (Aristada)...
September 2017: Journal of Psychiatric Practice
Vishnu D Sharma, François P Combes, Majid Vakilynejad, Gezim Lahu, Lawrence J Lesko, Mirjam N Trame
Development of antiobesity drugs is continuously challenged by high dropout rates during clinical trials. The objective was to develop a population pharmacodynamic model that describes the temporal changes in body weight, considering disease progression, lifestyle intervention, and drug effects. Markov modeling (MM) was applied for quantification and characterization of responder and nonresponder as key drivers of dropout rates, to ultimately support the clinical trial simulations and the outcome in terms of trial adherence...
February 2018: Journal of Clinical Pharmacology
Allen Ninh, Sang Kim, Andrew Goldberg
A 42-year-old obese woman (body mass index = 30.2 kg/m) presented for urgent anterior cervical diskectomy and fusion. She had been taking oral naltrexone-bupropion extended-release (Contrave, Orexigen Therapeutics Inc, La Jolla, CA) for the past 6 months and continued using it until 12 hours preoperatively. Despite discontinuation of this medication, and employing an intraoperative and postoperative multimodal analgesia strategy, immediate pain control was inadequately achieved. Patients taking opioid antagonists who present for surgery pose unique challenges to the anesthesiologist and require extensive preoperative interdisciplinary discussions and planning for pain control throughout the perioperative period...
October 15, 2017: A & A Case Reports
M Shehebar, Y Khelemsky
No abstract text is available yet for this article.
April 2016: Journal of Pain: Official Journal of the American Pain Society
Priyanka A Singh, Kerry P Cassel, Ronald M Moscati, David Eckersley
BACKGROUND: We report a case of erythrodermic pustular psoriasis associated with initiation of bupropion/naltrexone (Contrave®; Orexigen Therapeutics, La Jolla, CA) in a patient with no history of psoriasis. CASE REPORT: A 55-year-old woman was transferred to our tertiary medical center from a community hospital for possible Stevens-Johnson syndrome 3 weeks after initiation of bupropion/naltrexone. The patient was admitted to the burn unit for wound treatment and hydration...
April 2017: Journal of Emergency Medicine
Aneta Stefanidis, Christine Cheuk Man Lee, Wendy A Brown, Brian J Oldfield
BACKGROUND: The laparoscopic adjustable gastric band (AGB) has been effective in reducing excess weight by approximately 50% for at least 16 years. However, as with all weight loss approaches, reduction in weight resulting from bariatric surgery is associated with a compensatory reduction in energy expenditure, which may confound and limit weight loss. Adjuvant therapies that reduce food intake and increase energy expenditure may be used to improve weight loss outcomes by ameliorating, or even reversing, this reduction in energy expenditure...
February 2017: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
N Antonova, K Tsiberkin, S Podtaev, V Paskova, I Velcheva, N Chaushev
The aim of the study is to investigate the changes of the skin blood flow responses to cold stress in patients with diabetes mellitus type 2 through wavelet analysis of the peripheral skin temperature oscillations and to estimate their relationship with the blood viscosity values. The amplitudes of the skin temperature pulsations (ASTP) were monitored by "Microtest" device ("FM-Diagnostics", Russia); the whole blood viscosity and the shear stresses were measured by Contraves LS30 viscometer (Switzerland) at a steady flow in 9 healthy subjects and in 30 patients with type 2 diabetes mellitus...
2016: Clinical Hemorheology and Microcirculation
Vidya Narayanaswami, Linda P Dwoskin
Obesity is a global epidemic that contributes to a number of health complications including cardiovascular disease, type 2 diabetes, cancer and neuropsychiatric disorders. Pharmacotherapeutic strategies to treat obesity are urgently needed. Research over the past two decades has increased substantially our knowledge of central and peripheral mechanisms underlying homeostatic energy balance. Homeostatic mechanisms involve multiple components including neuronal circuits, some originating in hypothalamus and brain stem, as well as peripherally-derived satiety, hunger and adiposity signals that modulate neural activity and regulate eating behavior...
February 2017: Pharmacology & Therapeutics
Anna Marcinkowska-Gapińska, Piotr Kowal
The aim of the study is to test the influence of in vivo magnetostimulation on the rheological properties of blood in neurological patients. Blood circulation in the body depends both on the mechanical properties of the circulatory system and on the physical and physicochemical properties of blood. The main factors influencing the rheological properties of blood are as follows: hematocrit, plasma viscosity, whole-blood viscosity, red cells aggregability, deformability, and the ability of red cells to orient in the flow...
2016: Electromagnetic Biology and Medicine
Matthew M Sherman, Sinziana Ungureanu, Jose A Rey
Naltrexone/bupropion ER (Contrave): newly approved treatment option for chronic weight management in obese adults.
March 2016: P & T: a Peer-reviewed Journal for Formulary Management
Caroline M Apovian
Contrave(®) is a combination of naltrexone hydrochloride extended release and bupropion hydrochloride extended release for the treatment of obesity, and is used with lifestyle modification. Its safety and efficacy were assessed in four randomized, double-blind, placebo-controlled, 56-week Phase III clinical trials in 4536 adult subjects: COR-1, COR-II, COR-BMOD and COR-DM. All four studies demonstrated statistically significant and clinically meaningful weight loss following up to 52 weeks of treatment with naltrexone/bupropion compared with placebo...
March 2016: Future Cardiology
Maksim L Maksimov, Andrey A Svistunov, Vadim V Tarasov, Vladimir N Chubarev, Marco Ávila-Rodriguez, George E Barreto, Olga V Dralova, Gjumrakch Aliev
Obesity and metabolic syndrome (MS) are risk factors for diabetes, cancer, some cardiovascular and musculoskeletal diseases. Pharmacotherapy should be used when the body mass index (BMI) exceeds 30 kg/m² or 27 kg/m² with comorbidity. Efficacy and safety of pharmacotherapy depend on the mechanism of action of drugs. In this context, drugs affecting the central and peripheral mediator systems such as cannabinoid receptor antagonists (Rimonabant), neuronal reuptake inhibitor of NE and 5 HT (Sibutramine), neuronal reuptake inhibitor of NE 5-HT DA (Tesofensine), agonist of 5 HT 2C receptors (Lorcaserin) have a high risk of side effects on the central nervous and cardiovascular systems when used for a long period...
2016: Current Pharmaceutical Design
W Scott Butsch
PURPOSE OF REVIEW: Lifestyle modification remains the mainstay of treatment for obesity despite the lack of substantial long-term efficacy. For many who do not respond to lifestyle therapy and are not candidates for weight loss surgery, pharmacotherapy is a viable treatment option. Advances in understanding mechanisms of appetite control, nutrient sensing, and energy expenditure have not only helped shape current drug development but have also changed the way in which antiobesity medications are prescribed...
October 2015: Current Opinion in Endocrinology, Diabetes, and Obesity
R L Kolotkin, S Chen, P Klassen, K Gilder, F L Greenway
Weight loss is associated with improved quality of life in some, but not all, weight loss trials. We evaluated changes at 56 weeks in quality of life, measured by the Impact of Weight on Quality of Life-Lite (IWQOL-Lite) questionnaire, in a pooled analysis of patient-level data from four randomized controlled Phase 3 studies of naltrexone/bupropion (NB32 or Contrave®). The total number of subjects was 3362 (NB32 = 2043; placebo = 1319; mean body mass index = 36.3 kg m(2); mean age = 46). Improvements in IWQOL-Lite Total Score were greater in subjects treated with NB32 (11...
October 2015: Clinical Obesity
Sarah L Greig, Gillian M Keating
Oral naltrexone extended-release/bupropion extended-release (naltrexone ER/bupropion ER; Contrave(®), Mysimba(™)) is available as an adjunct to a reduced-calorie diet and increased physical activity in adults with an initial body mass index (BMI) of ≥ 30 kg/m(2) (i.e. obese) or a BMI of ≥ 27 kg/m(2) (i.e. overweight) in the presence of at least one bodyweight-related comorbidity, such as type 2 diabetes mellitus, hypertension or dyslipidaemia. In 56-week phase III trials in these patient populations, oral naltrexone ER/bupropion ER 32/360 mg/day was significantly more effective than placebo with regard to percentage bodyweight reductions from baseline and the proportion of patients who achieved bodyweight reductions of ≥ 5 and ≥ 10%...
July 2015: Drugs
Jessica Early, Jean Suzin Whitten
No abstract text is available yet for this article.
April 15, 2015: American Family Physician
Andrea Pucci, Nicholas Finer
The management of obesity remains a major challenge. Dietary therapy often fails, whereas bariatric surgery, although successful, is demanding and applicable to a limited number of patients. Drug therapy has had many setbacks over the past 20 years because of serious adverse effects; however, several new drugs for the treatment of obesity are either licensed in some parts of the world, submitted for registration, or completing phase III trials. These include combinations (at low dose) of existing drugs, e.g...
February 2015: Canadian Journal of Cardiology
Kunj Gohil
Naltrexone/bupropion (Contrave) for weight management; pembrolizumab (Keytruda) for melanoma; dolutegravir/abacavir/lamivudine (Triumeq) for HIV-1; and immune globulin infusion 10% (human) with recombinant human hyaluronidase (Hyqvia) for primary immunodeficiency.
November 2014: P & T: a Peer-reviewed Journal for Formulary Management
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