ArticleDiabetes, metabolic syndrome and obesity : targets and therapy2021
Effects of Orlistat/Phentermine versus Phentermine on Vascular Endothelial Cell Function in Obese and Overweight Adults: A Randomized, Double-Blinded, Placebo-Controlled Trial.
Article in Diabetes, metabolic syndrome and obesity : targets and therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03675191 (The Effects of Orlistat/Phentermine Versus Placebo/Phentermine Treatment on Weight Loss and Vascular Function of Overweight Patients With Back Pain), which is not on this map. Cited by 4 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
The Effects of Orlistat/Phentermine Versus Placebo/Phentermine Treatment on Weight Loss and Vascular Function of Overweight Patients With Back Pain
Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.
- Long-Term Effects of Orlistat on Lipid Metabolism and Anthropometric Indices: A Meta-Analysis of Clinical Trials.Journal of obesity · 2026Pooled it
- The Effect of Orlistat on Sterol Metabolism in Obese Patients.Frontiers in endocrinology · 2022Trial
- Understanding Impact of Anti-Obesity Medications on Skeletal Muscle Mass Change Is Confounded by Measurement Methods.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2026Review
- Orlistat and metformin combination ameliorates obesity-induced renal injury via suppressing renal oxidative stress in male rats.Toxicology research · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIn clinical practice, concomitant treatment of orlistat with phentermine is commonly used off-label. However, clinical trials have not been performed to evaluate whether their combination improves metabolic parameters and cardiovascular risk factors other than weight loss. Therefore, we aimed to compare the efficacy of concomitant administration of orlistat and phentermine versus phentermine alone on the endothelial cell function in overweight and obese adults with back pain.
methodsWe conducted a 12-week, double-blinded, placebo-controlled clinical trial involving 114 patients with a body mass index of ≥30 (obese) or ≥27 (overweight) with weight-related comorbidities. We randomly assigned patients in a 1:1 ratio to receive orlistat (120mg) three times daily and phentermine (37.5mg) once daily, or a placebo three times daily and phentermine (37.5mg) once daily. Primary endpoint was changes in endothelium-dependent vasodilatation measured using ultrasound assessment of flow-mediated dilatation (FMD). Differences within groups after intervention were compared using the paired
resultsMean weight loss during the 12-week study period was 6.1kg in the orlistat/phentermine group and in the placebo/phentermine group. Adjusted mean changes in total and non-high-density lipoprotein cholesterol were significantly greater in the orlistat/phentermine group than in the placebo/phentermine group. Adjusted mean changes in endothelium-dependent FMD were significantly greater in the orlistat/phentermine group than in the placebo/phentermine group (4.97±0.98% vs 2.05±0.99%, respectively; p=0.038). Changes in endothelium-independent nitroglycerin-mediated dilatation were not significantly different between the groups.
conclusionOrlistat/phentermine significantly improved the vascular endothelial cell function compared with phentermine alone. Orlistat might have beneficial effects on the decrease of the risk of cardiovascular disease, especially in overweight and obese patients with comorbidities.
trial registrationClinicalTrails.gov number, NCT03675191.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.