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Orforglipron

Checked Oct 11, 2026 · 18 sources checked

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Here's where it actually stands

Orforglipron is a once-daily pill that activates the GLP-1 receptor, the same target as semaglutide. The FDA's approval announcement calls it a partial agonist. It is a small chemical rather than a protein-like peptide, so it can be swallowed as a pill. Eli Lilly makes it. The FDA approved it as Foundayo on April 1 2026. It is approved, alongside diet and exercise, to help adults with obesity lose excess weight and keep it off. The approval also covers adults with overweight plus a weight-related condition. In the US it is a prescription medicine. Phase 3 trials have also tested it in type 2 diabetes, including against oral semaglutide. A placebo-controlled trial of its effect on heart attacks and strokes is enrolling.

Education only, not medical advice. Talk to a clinician about your own situation.

Why we checked it

Attention is moderate and steady. English Wikipedia's Orforglipron article had 7,360, 8,594 and 8,695 views in July, August and September 2026. PubMed added 12 records in the 30 days to Oct 11 2026, against about 10.3 a month in the preceding 90 days (31 records). NBC News covered the FDA approval on 2026-04-01. That is a past event, not current heat, so we use no "getting hot" label.

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What we know

In adults with obesity and no diabetes, daily orforglipron reduced body weight by 7.5% to 11.2% on average across the three doses tested over 72 weeks, versus 2.1% with placebo. Side effects led 5.3% to 10.3% of people on orforglipron to stop, versus 2.7% on placebo.

What we don't know

For adults with established atherosclerotic cardiovascular disease and/or chronic kidney disease, does orforglipron reduce heart attacks, strokes and cardiovascular deaths compared with placebo?

What would change our mind

If NCT07241390 shows a reduction in major cardiovascular events versus placebo, we would add cardiovascular benefit for that population to "What we know". A null result would mean its cardiovascular case rests on safety only.

A pooled analysis of seven phase 3 trials (11,220 participants) found no case meeting drug-induced liver injury criteria (PMID 42338042). If longer follow-up or later safety analyses show a new serious-harm signal, we would add it to "What we know".

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Word on the street

Who's covering it lately. Coverage means people are talking about it; it isn't evidence, and it never changes our read.

For the pros: claims, studies and receipts18 sources · tap to open

6 reviewed claim records · 18 linked source receipts Inspect source receipts

OTHER pubchem.cid:137319706 · last reviewed Oct 11, 2026

Maturity: source checked

Headline claim

In adults with obesity and no diabetes, daily orforglipron reduced body weight by 7.5% to 11.2% on average across the three doses tested over 72 weeks, versus 2.1% with placebo. Side effects led 5.3% to 10.3% of people on orforglipron to stop, versus 2.7% on placebo.

Adults with obesity (or overweight with complications), without diabetes · Outcome: Percent change in body weight

Confidence applies to this claim and context.

Identity

Metabolic / obesity · active ingredient

Identity checked Oct 7, 2026. This establishes the catalog name; evidence assessment is separate.

Checked facts

  • In adults with obesity and no diabetes, daily orforglipron reduced body weight by 7.5% to 11.2% on average across the three doses tested over 72 weeks, versus 2.1% with placebo. Side effects led 5.3% to 10.3% of people on orforglipron to stop, versus 2.7% on placebo. PMID 40960239 ↗
  • After weight loss on tirzepatide or semaglutide, people switched to orforglipron kept more of that weight loss at 52 weeks than people switched to placebo: 74.7% vs 49.2% in the tirzepatide cohort and 79.3% vs 37.6% in the semaglutide cohort. The trial had no group that stayed on injections, and it lasted 52 weeks. NCT NCT06584916 ↗
  • In adults with early type 2 diabetes managed with diet and exercise, orforglipron lowered HbA1c by 0.83 to 1.07 percentage points more than placebo over 40 weeks; stopping because of side effects was 4.4-7.8% vs 1.4%. PMID 40544435 ↗
  • In adults with obesity or overweight and type 2 diabetes, orforglipron reduced body weight by 5.1% to 9.6% on average across doses over 72 weeks, versus 2.5% with placebo. PMID 41275875 ↗
  • In adults with type 2 diabetes on metformin, orforglipron lowered HbA1c more than oral semaglutide over 52 weeks. It also caused more gastrointestinal side effects, more discontinuations for side effects and a larger rise in pulse rate. PMID 41765029 ↗
  • In people with type 2 diabetes at increased cardiovascular risk, orforglipron was non-inferior to insulin glargine for major cardiovascular events (4.2% vs 5.0%; hazard ratio 0.84, 95% CI 0.59-1.20) over a median of 2 years. This is a safety comparison, not proof of cardiovascular benefit. PMID 42815506 ↗
The GapEvidence not yet assessed for this claim, so no gap is shown

Attention describes reviewed public attention, evidence shows study types, and confidence applies only to the stated claim. There is no overall score.

Claims

In adults with obesity and no diabetes, daily orforglipron reduced body weight by 7.5% to 11.2% on average across the three doses tested over 72 weeks, versus 2.1% with placebo. Side effects led 5.3% to 10.3% of people on orforglipron to stop, versus 2.7% on placebo. · headlineAdults with obesity (or overweight with complications), without diabetes · Outcome: Percent change in body weightConfidence: Not assessed · source checked

Would change this claim: If NCT07241390 shows a reduction in major cardiovascular events versus placebo, we would add cardiovascular benefit for that population to "What we know". A null result would mean its cardiovascular case rests on safety only.

Source: Orforglipron, an Oral Small-Molecule GLP-1 Receptor Agonist for Obesity Treatment. · PMID 40960239 · The New England journal of medicine · Abstract, Results: -7.5%, -8.4%, -11.2% vs -2.1%; AE discontinuation 5.3-10.3% vs 2.7% · Verify ↗Source: A Study of Orforglipron (LY3502970) in Adult Participants With Obesity or Overweight With Weight-Related Comorbidities · NCT NCT05869903 · Eli Lilly and Company · Abstract, Results: -7.5%, -8.4%, -11.2% vs -2.1%; AE discontinuation 5.3-10.3% vs 2.7% · Verify ↗
After weight loss on tirzepatide or semaglutide, people switched to orforglipron kept more of that weight loss at 52 weeks than people switched to placebo: 74.7% vs 49.2% in the tirzepatide cohort and 79.3% vs 37.6% in the semaglutide cohort. The trial had no group that stayed on injections, and it lasted 52 weeks.Adults who reached a weight plateau on tirzepatide or semaglutide in SURMOUNT-5 · Outcome: Percent of prior weight reduction maintainedConfidence: Not assessed · source checkedSource: A Study of Orforglipron for the Maintenance of Body Weight Reduction in Participants Who Have Obesity or Overweight With Weight-Related Comorbidities (ATTAIN-MAINTAIN) · NCT NCT06584916 · Eli Lilly and Company · Abstract: model-based estimates 74.7% vs 49.2% (cohort 1), 79.3% vs 37.6% (cohort 2) · Verify ↗Source: Orforglipron for maintenance of body weight reduction: the double-blind, randomized phase 3b ATTAIN-MAINTAIN trial. · PMID 42120723 · Nature medicine · Abstract: model-based estimates 74.7% vs 49.2% (cohort 1), 79.3% vs 37.6% (cohort 2) · Verify ↗
In adults with early type 2 diabetes managed with diet and exercise, orforglipron lowered HbA1c by 0.83 to 1.07 percentage points more than placebo over 40 weeks; stopping because of side effects was 4.4-7.8% vs 1.4%.Adults with type 2 diabetes treated with diet and exercise only · Outcome: Change in HbA1cConfidence: Not assessed · source checkedSource: Orforglipron, an Oral Small-Molecule GLP-1 Receptor Agonist, in Early Type 2 Diabetes. · PMID 40544435 · The New England journal of medicine · Abstract, Results: differences -0.83 (95% CI -1.10 to -0.56), -1.06, -1.07 percentage points; AE discontinuation 4.4-7.8% vs 1.4% · Verify ↗Source: A Study of Orforglipron (LY3502970) in Adult Participants With Type 2 Diabetes and Inadequate Glycemic Control With Diet and Exercise Alone · NCT NCT05971940 · Eli Lilly and Company · Abstract, Results: differences -0.83 (95% CI -1.10 to -0.56), -1.06, -1.07 percentage points; AE discontinuation 4.4-7.8% vs 1.4% · Verify ↗
In adults with obesity or overweight and type 2 diabetes, orforglipron reduced body weight by 5.1% to 9.6% on average across doses over 72 weeks, versus 2.5% with placebo.Adults with obesity/overweight and type 2 diabetes · Outcome: Percent change in body weightConfidence: Not assessed · source checkedSource: Orforglipron, an oral small-molecule GLP-1 receptor agonist, for the treatment of obesity in people with type 2 diabetes (ATTAIN-2): a phase 3, double-blind, randomised, multicentre, placebo-controlled trial. · PMID 41275875 · Lancet (London, England) · Abstract, Findings: -5.1%, -7.0%, -9.6% vs -2.5% · Verify ↗Source: A Study of Orforglipron in Adult Participants With Obesity or Overweight and Type 2 Diabetes · NCT NCT05872620 · Eli Lilly and Company · Abstract, Findings: -5.1%, -7.0%, -9.6% vs -2.5% · Verify ↗
In adults with type 2 diabetes on metformin, orforglipron lowered HbA1c more than oral semaglutide over 52 weeks. It also caused more gastrointestinal side effects, more discontinuations for side effects and a larger rise in pulse rate.Adults with T2D inadequately controlled on metformin · Outcome: Change in HbA1cConfidence: Not assessed · source checkedSource: Efficacy and safety of once-daily oral orforglipron compared with oral semaglutide in adults with type 2 diabetes (ACHIEVE-3): a multinational, multicentre, non-inferiority, open-label, randomised, phase 3 trial. · PMID 41765029 · Lancet (London, England) · Abstract, Findings/Interpretation: non-inferior and superior on HbA1c; GI events, AE discontinuations and pulse increase higher with orforglipron · Verify ↗Source: A Study of Orforglipron (LY3502970) Compared With Semaglutide in Participants With Type 2 Diabetes Inadequately Controlled With Metformin · NCT NCT06045221 · Eli Lilly and Company · Abstract, Findings/Interpretation: non-inferior and superior on HbA1c; GI events, AE discontinuations and pulse increase higher with orforglipron · Verify ↗
In people with type 2 diabetes at increased cardiovascular risk, orforglipron was non-inferior to insulin glargine for major cardiovascular events (4.2% vs 5.0%; hazard ratio 0.84, 95% CI 0.59-1.20) over a median of 2 years. This is a safety comparison, not proof of cardiovascular benefit.Adults with T2D and increased CV risk (86% established CVD) · Outcome: MACE-4 (CV death, MI, stroke, hospitalization for unstable angina)Confidence: Not assessed · source checkedSource: Cardiovascular safety of orforglipron versus insulin glargine in adults with type 2 diabetes at increased cardiovascular risk (ACHIEVE-4): a phase 3, event-driven, randomised, open-label, non-inferiority, active comparator trial. · PMID 42815506 · Lancet · Abstract, Findings: 57 (4.2%) vs 67 (5.0%); HR 0.84 (95% CI 0.59-1.20); p<0.0001 non-inferiority · Verify ↗Source: A Study of Daily Oral Orforglipron (LY3502970) Compared With Insulin Glargine in Participants With Type 2 Diabetes and Obesity or Overweight at Increased Cardiovascular Risk · NCT NCT05803421 · Eli Lilly and Company · Abstract, Findings: 57 (4.2%) vs 67 (5.0%); HR 0.84 (95% CI 0.59-1.20); p<0.0001 non-inferiority · Verify ↗

Mapped studies / experiment families

One experiment counts once, even with several registrations or publications. Counts above describe the headline claim.

No reviewed experiment families mapped yet.

Studies & active trials

US regulatory timeline
Apr 1, 2026Foundayo (orforglipron) tablets approved for weight reduction and long-term maintenance in adults with obesity, or overweight with at least one weight-related condition, under the National Priority Voucher program.U.S. FDA ↗

Only papers and registered trials an editor reviewed for this page. Being listed is not a finding; the claims above say what they show.

Cardiovascular safety of orforglipron versus insulin glargine in adults with type 2 diabetes at increased cardiovascular risk (ACHIEVE-4): a phase 3, event-driven, randomised, open-label, non-inferiority, active comparator trial.PMID 42815506 · DOI 10.1016/S0140-6736(26)01865-9Study · Published · Sep 30, 2026 · LancetOpen source ↗
Hepatic Safety of Orforglipron in Adults With Obesity or Overweight and/or Type 2 Diabetes: A Pooled Analysis of the Orforglipron Phase 3 Clinical Trials.PMID 42338042 · DOI 10.1111/dom.71032Study · Published · Jun 23, 2026 · Diabetes, obesity & metabolismOpen source ↗
Orforglipron for maintenance of body weight reduction: the double-blind, randomized phase 3b ATTAIN-MAINTAIN trial.PMID 42120723 · DOI 10.1038/s41591-026-04386-7Study · Published · May 13, 2026 · Nature medicineOpen source ↗
Efficacy and safety of once-daily oral orforglipron compared with oral semaglutide in adults with type 2 diabetes (ACHIEVE-3): a multinational, multicentre, non-inferiority, open-label, randomised, phase 3 trial.PMID 41765029 · DOI 10.1016/s0140-6736(26)00202-3Study · Published · Feb 26, 2026 · Lancet (London, England)Open source ↗
Orforglipron, an oral small-molecule GLP-1 receptor agonist, for the treatment of obesity in people with type 2 diabetes (ATTAIN-2): a phase 3, double-blind, randomised, multicentre, placebo-controlled trial.PMID 41275875 · DOI 10.1016/s0140-6736(25)02165-8Study · Published · Nov 20, 2025 · Lancet (London, England)Open source ↗
Orforglipron, an Oral Small-Molecule GLP-1 Receptor Agonist for Obesity Treatment.PMID 40960239 · DOI 10.1056/nejmoa2511774Study · Published · Sep 16, 2025 · The New England journal of medicineOpen source ↗
Orforglipron, an Oral Small-Molecule GLP-1 Receptor Agonist, in Early Type 2 Diabetes.PMID 40544435 · DOI 10.1056/nejmoa2505669Study · Published · Jun 21, 2025 · The New England journal of medicineOpen source ↗
A Study of Orforglipron in Participants With Overweight at Risk of Development of Obesity-Related Complications or Progression to Class 1 ObesityNCT NCT07794579Trial · Recruiting · Oct 8, 2026 · Eli Lilly and CompanyOpen registry record ↗

Receipts
A Study of Daily Oral Orforglipron (LY3502970) Compared With Insulin Glargine in Participants With Type 2 Diabetes and Obesity or Overweight at Increased Cardiovascular RiskEli Lilly and Company · checked Oct 11, 2026 · NCT NCT05803421; status:COMPLETED
Open source ↗
A Study of Orforglipron for the Maintenance of Body Weight Reduction in Participants Who Have Obesity or Overweight With Weight-Related Comorbidities (ATTAIN-MAINTAIN)Eli Lilly and Company · checked Oct 11, 2026 · NCT NCT06584916; status:COMPLETED
Open source ↗
A Study of Orforglipron in Adult Participants With Obesity or Overweight and Type 2 DiabetesEli Lilly and Company · checked Oct 11, 2026 · NCT NCT05872620; status:COMPLETED
Open source ↗
A Study of Orforglipron in Participants With Overweight at Risk of Development of Obesity-Related Complications or Progression to Class 1 ObesityEli Lilly and Company · checked Oct 11, 2026 · NCT NCT07794579; status:RECRUITING; primary completion 2029-08 (estimated)
Open source ↗
A Study of Orforglipron (LY3502970) Compared With Semaglutide in Participants With Type 2 Diabetes Inadequately Controlled With MetforminEli Lilly and Company · checked Oct 11, 2026 · NCT NCT06045221; status:COMPLETED
Open source ↗
A Study of Orforglipron (LY3502970) in Adult Participants With Obesity or Overweight With Weight-Related ComorbiditiesEli Lilly and Company · checked Oct 11, 2026 · NCT NCT05869903; status:ACTIVE_NOT_RECRUITING
Open source ↗
A Study of Orforglipron (LY3502970) in Adult Participants With Type 2 Diabetes and Inadequate Glycemic Control With Diet and Exercise AloneEli Lilly and Company · checked Oct 11, 2026 · NCT NCT05971940; status:COMPLETED
Open source ↗
A Study of Orforglipron (LY3502970) in Participants With Obesity or Overweight and Osteoarthritis (OA) of the KneeEli Lilly and Company · checked Oct 11, 2026 · NCT NCT07153471; status:ACTIVE_NOT_RECRUITING; primary completion 2028-04 (estimated)
Open source ↗

What still isn't settled?

For adults with established atherosclerotic cardiovascular disease and/or chronic kidney disease, does orforglipron reduce heart attacks, strokes and cardiovascular deaths compared with placebo?

Its only completed cardiovascular trial compared it with insulin glargine in type 2 diabetes. That trial was designed to show safety (non-inferiority), and its confidence interval (0.59-1.20) cannot exclude no effect.

What would answer it: The primary result of NCT07241390, a placebo-controlled event-driven phase 3 trial in about 7,140 adults with established ASCVD and/or CKD (estimated primary completion 2031-08), on major adverse cardiovascular events.

Already settled: weight loss versus placebo over 72 weeks in adults with obesity without diabetes (ATTAIN-1, NEJM 2025).

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