ArticleObesity science & practice2025
Utilization of Low-Dose Phentermine for Weight Loss Prior to Metabolic and Bariatric Surgery: A Prospective, Randomized, and Placebo-Controlled Trial.
Article in Obesity science & practice, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- GLP-1 Receptor Agonist Combination Therapy Before and After Metabolic and Bariatric Surgery: A Review of Outcomes.Journal of metabolic and bariatric surgery · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
Abstract
Introduction: Studies examining preoperative weight loss using pharmacotherapy in metabolic and bariatric patients are limited. The objective was to investigate if patients taking a low-dose formulation of phentermine had improved weight loss. Methods: This study was a randomized, placebo-controlled trial including patients undergoing laparoscopic Roux-en-Y gastric bypass and sleeve gastrectomy. Anthropometric and serological data were collected during the initial consult visit and again during two follow-up visits. Lomaira is a low-dose formulation of phentermine. Patients took 8-mg tablets three times a day for 14 weeks. The primary outcome of this study was weight loss, which was measured as percentage total weight loss (%TWL) and change in body mass index (BMI). Results: Among 53 participants randomized, 45 (85%) completed the trial. Participants were predominantly female (91%); the mean age was 41 years (SD = 11); and the mean initial BMI was 48.4 kg/m Conclusions: Low-dose phentermine is efficacious and safe for preoperative weight loss in patients undergoing metabolic and bariatric surgery.
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Registered trials
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 OpenQuestion graph.