Cited by 476Pharmacology and Obesity TreatmentBariatric Surgery and OutcomesObesity, Physical Activity, Diet

Weight Loss, Weight Maintenance, and Improved Cardiovascular Risk Factors after 2 Years Treatment with Orlistat for Obesity

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Rössner, Stephan, Sjöström, Lars, Noack, Rudolf, Meinders, A. Edo, Noseda, Giorgio, on behalf of the European Orlistat Obesity Study·2000·Obesity Research

Abstract

Objective: To determine the effect of orlistat, a new lipase inhibitor, on long‐term weight loss, to determine the extent to which orlistat treatment minimizes weight regain in a second year of treatment, and to assess the effects of orlistat on obesity‐related risk factors. Research Methods and Procedures: This was a 2‐year, multicenter, randomized, double‐blind, placebo‐controlled study. Obese patients (body mass index 28 to 43 kg/m 2) were randomized to placebo or orlistat (60 or 120 mg) three times a day, combined with a hypocaloric diet during the first year and a weight maintenance diet in the second year of treatment to prevent weight regain. Changes in body weight, lipid profile, glycemic control, blood pressure, quality of life, safety, and tolerability were measured. Results: Orlistat‐treated patients lost significantly more weight (p < 0.001) than placebo‐treated patients after Year 1 (6.6%, 8.6%, and 9.7% for the placebo, and orlistat 60 mg and 120 mg groups, respectively). During the second year, orlistat therapy produced less weight regain than placebo (p = 0.005 for orlistat 60 mg; p < 0.001 for orlistat 120 mg). Several obesity‐related risk factors improved significantly more with orlistat treatment than with placebo. Orlistat was generally well tolerated and only 6% of orlistat‐treated patients withdrew because of adverse events. Orlistat leads to predictable gastrointestinal effects related to its mode of action, which were generally mild, transient, and self‐limiting and usually occurred early during treatment. Discussion: Orlistat administered for 2 years promotes weight loss and minimizes weight regain. Additionally, orlistat therapy improves lipid profile, blood pressure, and quality of life.

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  1. Bjo ¨rntorp P. Obesity. Lancet. 1997;350:423-6.
  2. by Readcube (Labtiva Inc.), Wiley Online Library on [20/11/2023]. See the Terms and Conditions (https://onlinelibrary.wiley.com/terms-and-conditions) on Wiley Online Library for rules of use; OA articles are governed by the applicable Creative Commons License

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Authors
Rössner, S., Sjöström, L., Noack, R., Meinders, A. E., Noseda, G., & Study, O. B. O. T. E. O. O.
Affiliations
  • Sahlgrenska University Hospital (SE)
  • Leiden University Medical Center (NL)
  • Ospedale Regionale di Mendrisio (CH)
Corresponding author
Rössner, Stephan
Venue
Obesity Research
Publisher
Wiley
Published
2000-01
Volume
8
Issue
1
Pages
49-61
ISSN
  • 1071-7323 (ISSN-L)
  • 1550-8528
OpenAlex
W1980641839
Cited by
476
References
30
Citations by year
2026: 3 · 2025: 15 · 2024: 14 · 2023: 11 · 2022: 10 · 2021: 12 · 2020: 8 · 2019: 13 · 2018: 9 · 2017: 14 · 2016: 10 · 2015: 8 · 2014: 19 · 2013: 13 · 2012: 16
FWCI
19.84
Type
journal article
Language
en
Open access
Locations
  • Obesity Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
F. Hoffmann-La Roche
Topics
  • Health Sciences › Medicine › Pharmacology › Pharmacology and Obesity Treatment
  • Health Sciences › Medicine › Surgery › Bariatric Surgery and Outcomes
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
Keywords
orlistat, lipase inhibitors, obesity, weight loss, weight regain, weight maintenance, cardiovascular risk factors, lipid profile, blood pressure, glycemic control, hypocaloric diet, gastrointestinal adverse effects, quality of life, long-term treatment
MeSH terms
Orlistat, Adult, Cardiovascular System, Diet, Reducing, Double-Blind Method, Female, Humans, Lactones, Male, Middle Aged, Placebos, Risk Factors, Weight Loss, Treatment Outcome, Anti-Obesity Agents

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