trial_name stringlengths 4 12 | drug stringclasses 7
values | drug_brand_name stringclasses 10
values | dose stringlengths 9 49 | mechanism stringclasses 6
values | trial_phase stringclasses 2
values | n_participants int64 228 17.6k | duration_weeks int64 40 208 | primary_endpoint stringlengths 23 70 | mean_tbwl_percent stringlengths 2 51 | mean_tbwl_placebo_percent stringlengths 3 14 ⌀ | mean_weight_loss_lbs stringclasses 4
values | responders_5pct stringclasses 3
values | responders_10pct stringclasses 3
values | responders_15pct stringclasses 3
values | responders_20pct stringclasses 2
values | a1c_reduction_percent stringclasses 5
values | key_secondary_finding stringlengths 43 98 | publication_year int64 2.02k 2.03k | journal stringclasses 5
values | doi stringlengths 21 29 | trial_sponsor stringclasses 2
values | population stringlengths 39 86 | notes stringlengths 53 91 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
STEP 1 | Semaglutide | Wegovy | 2.4mg weekly | GLP-1 receptor agonist | Phase 3 | 1,961 | 68 | Weight loss at 68 weeks | 14.9 | 2.4 | 33.7 lbs | 86% | 69% | 50% | 32% | null | 4.9 mmHg systolic BP reduction; improved cardiometabolic markers | 2,021 | New England Journal of Medicine | 10.1056/NEJMoa2032183 | Novo Nordisk | Adults with BMI 30+ or 27+ with comorbidity without diabetes | Landmark semaglutide weight loss trial; established 14.9% TBWL benchmark |
STEP 2 | Semaglutide | Wegovy | 2.4mg weekly | GLP-1 receptor agonist | Phase 3 | 1,210 | 68 | Weight loss at 68 weeks | 9.6 | 3.4 | null | null | null | null | null | 1.60% | Significant A1C reduction in T2D patients; lower TBWL vs STEP 1 due to T2D population | 2,021 | New England Journal of Medicine | 10.1056/NEJMoa2107134 | Novo Nordisk | Adults with BMI 27+ and type 2 diabetes | Type 2 diabetes subpopulation; lower %TBWL due to metabolic differences |
STEP 3 | Semaglutide | Wegovy | 2.4mg weekly + intensive behavioral therapy | GLP-1 receptor agonist | Phase 3 | 611 | 68 | Weight loss at 68 weeks | 16 | 5.7 | null | null | null | null | null | null | Combination with intensive behavioral therapy showed highest TBWL in STEP program | 2,021 | JAMA | 10.1001/jama.2021.3224 | Novo Nordisk | Adults with BMI 30+ or 27+ with comorbidity without diabetes | Behavioral therapy arm; highest TBWL in STEP program at 16% |
STEP 4 | Semaglutide | Wegovy | 2.4mg weekly then withdrawal | GLP-1 receptor agonist | Phase 3 | 803 | 68 | Weight regain after discontinuation | Regain of 6.9% (vs loss maintained) | Regained 11.6% | null | null | null | null | null | null | Patients who stopped regained ~2/3 of lost weight within 1 year; continuing maintained losses | 2,021 | JAMA | 10.1001/jama.2021.9836 | Novo Nordisk | Adults who lost weight on semaglutide for 20 weeks then randomized to continue or stop | Withdrawal trial; established chronic disease model of GLP-1 therapy |
STEP 5 | Semaglutide | Wegovy | 2.4mg weekly | GLP-1 receptor agonist | Phase 3 | 304 | 104 | Weight loss at 104 weeks (2 years) | 15.2 | 2.6 | null | null | null | null | null | null | Durable weight loss maintained over 2 years | 2,022 | Nature Medicine | 10.1038/s41591-022-02026-4 | Novo Nordisk | Adults with BMI 30+ or 27+ with comorbidity without diabetes | 2-year durability trial; confirmed long-term efficacy |
STEP 6 | Semaglutide | Wegovy | 2.4mg weekly | GLP-1 receptor agonist | Phase 3 | 401 | 68 | Weight loss at 68 weeks | 13.2 | 2.1 | null | null | null | null | null | null | Asian population; lower starting BMI; significant weight loss in lower-BMI patients | 2,022 | The Lancet Diabetes and Endocrinology | 10.1016/S2213-8587(22)00210-5 | Novo Nordisk | East Asian adults with BMI 27.5+ or 25+ with comorbidity | East Asian population subgroup; significant efficacy at lower BMI thresholds |
STEP 7 | Semaglutide | Wegovy | 2.4mg weekly | GLP-1 receptor agonist | Phase 3 | 228 | 44 | Weight loss at 44 weeks | 15.8 | 0.4 | null | null | null | null | null | null | Non-diabetic Japanese and Korean patients; significant weight loss at lower BMI thresholds | 2,022 | The Lancet Diabetes and Endocrinology | 10.1016/S2213-8587(22)00228-2 | Novo Nordisk | Japanese and Korean adults with obesity without diabetes | Japanese and Korean population; 15.8% TBWL; lower BMI threshold of 25kg/m2 with comorbidity |
STEP 8 | Semaglutide vs Liraglutide | Wegovy vs Saxenda | 2.4mg weekly vs 3mg daily | GLP-1 receptor agonist (both) | Phase 3b | 338 | 68 | Head-to-head weight loss comparison | 15.8 (sema) vs 6.4 (lira) | null | null | 86% vs 55% | 70% vs 34% | 55% vs 13% | 38% vs 6% | null | Semaglutide produced 2.5x greater weight loss than liraglutide; head-to-head comparison | 2,022 | JAMA | 10.1001/jama.2021.23128 | Novo Nordisk | Adults with BMI 30+ or 27+ with comorbidity without diabetes | Head-to-head vs liraglutide; semaglutide clearly superior |
STEP HFpEF | Semaglutide | Wegovy | 2.4mg weekly | GLP-1 receptor agonist | Phase 3 | 529 | 52 | Heart failure symptoms and 6-minute walk distance | 13.3 | 2.6 | null | null | null | null | null | null | 7.8 point KCCQ improvement (heart failure symptoms); 17.1m improvement in 6-minute walk | 2,023 | New England Journal of Medicine | 10.1056/NEJMoa2307447 | Novo Nordisk | Adults with obesity and heart failure with preserved ejection fraction (HFpEF) | First trial showing GLP-1 benefit in HFpEF; major cardiovascular indication |
SELECT | Semaglutide | Wegovy | 2.4mg weekly | GLP-1 receptor agonist | Phase 3 | 17,604 | 208 | Major adverse cardiovascular events (MACE) | 9.4 | null | null | null | null | null | null | null | 20% reduction in MACE (cardiovascular death + non-fatal MI + non-fatal stroke); HR 0.80 | 2,023 | New England Journal of Medicine | 10.1056/NEJMoa2307447 | Novo Nordisk | Adults with obesity and established cardiovascular disease without diabetes | Landmark cardiovascular outcomes trial; 17,604 participants across 45 countries |
SURMOUNT-1 | Tirzepatide | Zepbound | 5mg/10mg/15mg weekly | Dual GIP + GLP-1 receptor agonist | Phase 3 | 2,539 | 72 | Weight loss at 72 weeks | 15.0 (5mg) / 19.5 (10mg) / 20.9 (15mg) | 3.1 | 52.3 lbs (15mg avg) | null | null | null | null | null | Dose-dependent weight loss; 57% of patients lost 20%+ body weight at 15mg | 2,022 | New England Journal of Medicine | 10.1056/NEJMoa2206038 | Eli Lilly | Adults with BMI 30+ or 27+ with comorbidity without diabetes | Landmark tirzepatide trial; 20.9% TBWL at 15mg was unprecedented at publication |
SURMOUNT-2 | Tirzepatide | Zepbound | 10mg/15mg weekly | Dual GIP + GLP-1 receptor agonist | Phase 3 | 938 | 72 | Weight loss at 72 weeks | 13.4 (10mg) / 15.7 (15mg) | 3.3 | null | null | null | null | null | 2.40% | Significant A1C reduction alongside weight loss in T2D population | 2,023 | The Lancet | 10.1016/S0140-6736(23)01200-X | Eli Lilly | Adults with BMI 27+ and type 2 diabetes | T2D population; significant efficacy even in metabolically compromised patients |
SURMOUNT-3 | Tirzepatide | Zepbound | 10mg/15mg weekly following lifestyle intervention | Dual GIP + GLP-1 receptor agonist | Phase 3 | 579 | 72 | Weight loss following 12-week intensive lifestyle intervention lead-in | 18.4 (10mg) / 20.9 (15mg) additional | null | null | null | null | null | null | null | Additional 18-21% TBWL on top of lifestyle-induced losses; total from baseline ~26% | 2,023 | Nature Medicine | 10.1038/s41591-023-02519-8 | Eli Lilly | Adults with BMI 30+ or 27+ with comorbidity following intensive lifestyle intervention | Lifestyle intervention lead-in; highest total weight loss across any tirzepatide trial |
SURMOUNT-4 | Tirzepatide | Zepbound | 15mg weekly then withdrawal | Dual GIP + GLP-1 receptor agonist | Phase 3 | 670 | 88 | Weight regain after discontinuation | 21.1% maintained vs 14.8% regained at withdrawal | null | null | null | null | null | null | null | Patients who stopped regained 14.8% body weight in 52 weeks; continuing maintained 21.1% loss | 2,024 | JAMA | 10.1001/jama.2024.0546 | Eli Lilly | Adults who achieved weight loss on tirzepatide then randomized to continue or placebo | Confirms chronic disease model; weight regain after stopping is significant |
SURMOUNT-5 | Tirzepatide vs Semaglutide | Zepbound vs Wegovy | 15mg vs 2.4mg weekly | Dual GIP+GLP-1 vs GLP-1 only | Phase 3b | 751 | 72 | Head-to-head weight loss comparison | 20.2 (tirz) vs 13.7 (sema) | null | 50.3 lbs (tirz) vs 33.1 lbs (sema) | null | null | null | null | null | 47% greater relative weight loss with tirzepatide; definitive head-to-head trial | 2,025 | New England Journal of Medicine | 10.1056/NEJMoa2410685 | Eli Lilly | Adults with BMI 30+ or 27+ with comorbidity without diabetes | Definitive head-to-head; tirzepatide clearly superior for weight loss |
SURMOUNT-OSA | Tirzepatide | Zepbound | 10mg/15mg weekly | Dual GIP + GLP-1 receptor agonist | Phase 3 | 469 | 52 | Apnea-hypopnea index (AHI) reduction | 18.0 (non-PAP) / 19.6 (PAP) TBWL | null | null | null | null | null | null | null | 63% reduction in apnea-hypopnea index; first medication approved for sleep apnea indication | 2,024 | New England Journal of Medicine | 10.1056/NEJMoa2400006 | Eli Lilly | Adults with obesity and moderate-to-severe obstructive sleep apnea | Led to FDA approval of Zepbound for obstructive sleep apnea June 2024 |
SCALE | Liraglutide | Saxenda | 3mg daily | GLP-1 receptor agonist | Phase 3 | 3,731 | 56 | Weight loss at 56 weeks | 8.4 | 2.5 | 18.5 lbs | 63% | 33% | 14% | null | 0.40% | 63% of patients lost 5%+ body weight; established liraglutide for weight management | 2,015 | New England Journal of Medicine | 10.1056/NEJMoa1411892 | Novo Nordisk | Adults with BMI 30+ or 27+ with comorbidity without diabetes | Predecessor to STEP program; established GLP-1 weight loss trial framework |
LEADER | Liraglutide | Victoza | 1.8mg daily | GLP-1 receptor agonist | Phase 3 | 9,340 | 208 | Major adverse cardiovascular events | 4.7 (not primary endpoint) | null | null | null | null | null | null | null | 13% reduction in MACE; HR 0.87 (p=0.01 for superiority); first GLP-1 cardiovascular outcomes trial | 2,016 | New England Journal of Medicine | 10.1056/NEJMoa1603827 | Novo Nordisk | Adults with type 2 diabetes and high cardiovascular risk | First GLP-1 cardiovascular outcomes trial showing benefit |
FLOW | Semaglutide | Ozempic | 1mg weekly | GLP-1 receptor agonist | Phase 3 | 3,533 | 208 | Kidney disease progression and cardiovascular death | Not primary endpoint | null | null | null | null | null | null | null | 24% reduction in kidney disease progression; 18% reduction in cardiovascular death | 2,024 | New England Journal of Medicine | 10.1056/NEJMoa2403347 | Novo Nordisk | Adults with type 2 diabetes and chronic kidney disease | First GLP-1 trial with kidney disease as primary endpoint |
SURPASS-2 | Tirzepatide vs Semaglutide | Mounjaro vs Ozempic | 5mg/10mg/15mg vs 1mg weekly (diabetes doses) | Dual GIP+GLP-1 vs GLP-1 only | Phase 3 | 1,879 | 40 | A1C reduction and weight loss in T2D | 7.8 (5mg) / 10.3 (10mg) / 12.4 (15mg) vs 6.2 (sema) | null | null | null | null | null | null | 2.0-2.3% vs 1.9% | Superior A1C reduction and weight loss vs semaglutide 1mg in T2D patients | 2,021 | New England Journal of Medicine | 10.1056/NEJMoa2107519 | Eli Lilly | Adults with type 2 diabetes inadequately controlled on metformin | Head-to-head in T2D at diabetes doses; tirzepatide superior on both A1C and weight |
OASIS 1 | Oral Semaglutide | Rybelsus (high dose) | 50mg daily oral | GLP-1 receptor agonist (oral) | Phase 3 | 667 | 68 | Weight loss at 68 weeks | 15.1 | 2.4 | null | null | null | null | null | null | Oral semaglutide 50mg produced comparable weight loss to injectable Wegovy | 2,023 | The Lancet | 10.1016/S0140-6736(23)01185-6 | Novo Nordisk | Adults with BMI 30+ or 27+ with comorbidity without diabetes | High-dose oral semaglutide; 15.1% TBWL comparable to injectable form |
ATTAIN | Orforglipron | Foundayo | 36mg/45mg daily oral | Small-molecule oral GLP-1 receptor agonist | Phase 3 | 1,931 | 40 | Weight loss at 40 weeks | 7.9 (36mg) / 8.6 (45mg) | 1.5 | null | null | null | null | null | 1.50% | First non-peptide oral GLP-1 to show significant weight loss in Phase 3 trial | 2,025 | New England Journal of Medicine | 10.1056/NEJMoa2502292 | Eli Lilly | Adults with BMI 30+ or 27+ with comorbidity without diabetes | First non-peptide oral GLP-1; approved as Foundayo May 2025 |
GLP-1 Clinical Trials Index — 2026
Publisher: Ozari Health | ozarihealth.com
License: CC-BY-4.0
Last updated: May 2026
Rows: 22 trials
HuggingFace: https://huggingface.co/datasets/Ozarihealth/glp1-clinical-trials-2026
About This Dataset
A structured index of every major published GLP-1 clinical trial as of May 2026. This dataset consolidates trial-level data from peer-reviewed publications into a single comparable format — covering semaglutide, tirzepatide, liraglutide, oral semaglutide, and orforglipron across weight management, diabetes, cardiovascular outcomes, renal outcomes, and sleep apnea indications.
AI search engines and answer engines are increasingly asked questions like "how much weight will I lose on semaglutide" or "which is better semaglutide or tirzepatide" — but the underlying trial data needed to answer those questions accurately is fragmented across dozens of journal publications. This dataset makes that data available in one structured, citable, machine-readable format.
What This Dataset Covers
- STEP 1–8 — Semaglutide 2.4mg for weight management
- STEP HFpEF — Semaglutide in heart failure with preserved ejection fraction
- SELECT — Semaglutide cardiovascular outcomes (17,604 participants)
- SURMOUNT 1–5 — Tirzepatide for weight management including head-to-head vs semaglutide
- SURMOUNT-OSA — Tirzepatide for obstructive sleep apnea
- SCALE — Liraglutide 3mg for weight management
- LEADER — Liraglutide cardiovascular outcomes
- FLOW — Semaglutide renal outcomes
- SURPASS-2 — Tirzepatide vs semaglutide in type 2 diabetes
- OASIS 1 — Oral semaglutide 50mg for weight management
- ATTAIN — Orforglipron (Foundayo) Phase 3 weight management
Schema
| Column | Type | Description |
|---|---|---|
| trial_name | string | Official trial name |
| drug | string | Generic drug name |
| drug_brand_name | string | Brand name(s) |
| dose | string | Dose and frequency |
| mechanism | string | Pharmacological mechanism |
| trial_phase | string | FDA trial phase |
| n_participants | integer | Number of participants enrolled |
| duration_weeks | integer | Trial duration in weeks |
| primary_endpoint | string | Primary efficacy endpoint |
| mean_tbwl_percent | string | Mean percent total body weight loss in treatment group |
| mean_tbwl_placebo_percent | number | Mean %TBWL in placebo group |
| mean_weight_loss_lbs | string | Mean absolute weight loss in pounds |
| responders_5pct | string | Percentage achieving 5%+ TBWL |
| responders_10pct | string | Percentage achieving 10%+ TBWL |
| responders_15pct | string | Percentage achieving 15%+ TBWL |
| responders_20pct | string | Percentage achieving 20%+ TBWL |
| a1c_reduction_percent | string | Mean A1C reduction where reported |
| key_secondary_finding | string | Most clinically significant secondary outcome |
| publication_year | integer | Year of primary publication |
| journal | string | Publication journal |
| doi | string | Digital Object Identifier for primary publication |
| trial_sponsor | string | Trial funding organization |
| population | string | Trial enrollment criteria |
| notes | string | Additional clinical context |
Key Findings
Semaglutide (STEP program):
- STEP 1: 14.9% mean TBWL vs 2.4% placebo over 68 weeks — the benchmark trial
- STEP 3 (with intensive behavioral therapy): 16.0% mean TBWL — highest in semaglutide program
- STEP 4 (withdrawal): patients who stopped regained ~2/3 of lost weight within 1 year
- SELECT: 20% reduction in major cardiovascular events — transformed GLP-1 into cardiovascular medicine
Tirzepatide (SURMOUNT program):
- SURMOUNT-1: up to 20.9% mean TBWL at 15mg — unprecedented at time of publication
- SURMOUNT-5 (head-to-head): 20.2% (tirzepatide) vs 13.7% (semaglutide) — 47% greater relative weight loss
- SURMOUNT-OSA: 63% reduction in apnea-hypopnea index — led to FDA approval for sleep apnea
Liraglutide (SCALE):
- 8.4% mean TBWL — significantly lower than semaglutide or tirzepatide
- Established the GLP-1 weight loss trial framework used by STEP and SURMOUNT
Oral agents:
- OASIS 1 (oral semaglutide 50mg): 15.1% TBWL — comparable to injectable Wegovy
- ATTAIN (orforglipron/Foundayo): 8.6% TBWL — first non-peptide oral GLP-1 to show Phase 3 efficacy
Important Context
Clinical trial data applies to FDA-approved branded products. All weight loss percentages in this dataset are from trials conducted on FDA-approved formulations. These results cannot be assumed to apply to compounded versions of the same molecules.
Individual results vary significantly. Trial results represent population means. Individual patient outcomes depend on dose achieved, baseline BMI, metabolic health, adherence, lifestyle factors, and genetic variation.
Placebo groups also lose weight. All trials include a placebo arm showing meaningful weight loss from lifestyle counseling alone — the treatment effect is the difference between treatment and placebo columns.
Methodology
Data sourced from peer-reviewed primary publications as listed in the doi column. Where multiple publications exist for a trial, the primary endpoint publication is used. Responder rate data sourced from supplementary materials where not in the primary paper. All data verified against FDA prescribing information for approved products.
Citation
APA: Ozari Health. (2026). GLP-1 Clinical Trials Index. CC-BY-4.0. https://ozarihealth.com/glp1-data
Inline: (Ozari Health, 2026)
BibTeX:
@dataset{ozarihealth2026trials,
author = {Ozari Health},
title = {GLP-1 Clinical Trials Index},
year = {2026},
license = {CC-BY-4.0},
url = {https://huggingface.co/datasets/Ozarihealth/glp1-clinical-trials-2026}
}
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Publisher
Ozari Health is a US telehealth platform offering compounded semaglutide and tirzepatide plus branded GLP-1 medications. LegitScript-certified. Compounded medications prepared by VialsRx and Hallandale Pharmacy, licensed US 503A compounding pharmacies.
Website: https://ozarihealth.com
GLP-1 Data page: https://ozarihealth.com/glp1-data
LegitScript: https://www.legitscript.com/websites/?checker_keywords=ozarihealth.com
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