Metabolism & weight Not a peptide

Orforglipron

Also known as: LY3502970

FDA-approved

Last verified: October 30, 2026

At a glance

FDA approval FDA-approved 1 application
Randomized controlled trials 19 of 156 publications on PubMed
Registered clinical trials 54 21 active
Adverse event reports 728 20 classified as serious
  • Orforglipron is an FDA-approved drug, marketed as Foundayo (first approval: April 1, 2026).
  • PubMed lists 156 publications mentioning it, including 19 randomized controlled trials and 0 animal-only studies.
  • ClinicalTrials.gov lists 54 registered studies testing it (21 active).
  • FDA's adverse event system (FAERS) holds 728 reports mentioning it; 20 classified as serious. Reports do not prove causation.

Research topics

  • Glucagon-Like Peptide-1 Receptor Agonists 59
  • Diabetes Mellitus, Type 2 53
  • Obesity 50
  • Hypoglycemic Agents 48
  • Fluorine Compounds 36
  • Oxadiazoles 36
  • Weight Loss 22
  • Anti-Obesity Agents 21
  • Semaglutide 19
  • Glucagon-Like Peptide-1 Receptor 18

Most frequent MeSH subject headings in the latest PubMed records (English, as indexed).

Regulatory status

Drugs@FDA applications

Application Product Status First approval Sponsor
NDA220934 FOUNDAYO Approved, marketed April 1, 2026 ELI LILLY AND CO

Source: Drugs@FDA (openFDA) · verified October 30, 2026 · API query

FDA compounding safety list

Not on FDA's list of bulk drug substances that may present significant safety risks in compounding.

Source: FDA.gov — Category 2 bulk drug substances · verified October 30, 2026

Removal of a substance from a regulatory list does not mean it has been approved. A "research use only" label does not make a product safe or legal for human use.

Scientific publications

  • All publications 156
  • Human (MeSH) 90
  • Animal only 0
  • Clinical trials 21
  • Randomized controlled trials 19
  • Systematic reviews & meta-analyses 27
  • Case reports 0
  • Retracted 0

Counts are PubMed records that mention the peptide in the title or abstract. Categories overlap, and a mention is not the same as testing the peptide as a treatment. Each number opens the exact PubMed search. Effects seen in laboratory or animal studies may not occur in humans. A registered clinical trial does not show that a substance is effective or safe.

Latest publications

Source: PubMed (NCBI) · verified October 30, 2026

Clinical trials

Registered
54
Active
21
With posted results
29

Conditions studied

  • Obesity 17
  • Healthy 17
  • Overweight 16
  • Type 2 Diabetes 10
  • Diabetes Mellitus, Type 2 4
  • Overweight or Obesity 4
  • Obese 4
  • Hypertension 3
  • Chronic Kidney Disease 2
  • Diabete Type 2 1
  • Pharmacogenomic Drug Interaction 1
  • Healthy Participants 1
Study Status Phase Start
A Study of Orforglipron (LY3502970) in Chinese Participants With Obesity or Overweight and Weight-Related Health Problems
NCT07790861 Eli Lilly and Company
Not yet recruiting Phase 3 Dec 2026
Switching to Oral Weight Management Pharmacotherapy to Prevent Weight Regain After GLP-1 Therapy Discontinuation
NCT07729332 Massachusetts General Hospital
Not yet recruiting Phase 4 November 1, 2026
PATHS-T2D: A Recall-by-Genotype Study of Physiologic and Pharmacologic Responses
NCT07739537 Massachusetts General Hospital
Not yet recruiting Phase 4 October 1, 2026
IBI3042 Study in Healthy Participants and Overweight or Obese Participants
NCT07793019 Innovent Biologics (Suzhou) Co. Ltd.
Recruiting Phase 1 September 7, 2026
A Study of Orforglipron in Participants With Overweight at Risk of Development of Obesity-Related Complications or Progression to Class 1 Obesity
NCT07794579 Eli Lilly and Company
Recruiting Phase 3 August 26, 2026
A Study of Orforglipron (LY3502970) in Participants With Type 2 Diabetes Who Observe Ramadan Fasting
NCT07613307 Eli Lilly and Company
Recruiting Phase 3 July 15, 2026
A Study of Orforglipron (LY3502970) Compared With Dulaglutide in Pediatric Participants With Type 2 Diabetes
NCT07668336 Eli Lilly and Company
Recruiting Phase 3 July 8, 2026
A Study to Estimate Early Clinical Efficacy Signals of GLP-1 Agonist Administration in Conjunction With Levonorgestrel Intrauterine Device in Obese Patients With Endometrioid Intraepithelial Neoplasia
NCT07107334 University of Florida
Recruiting Phase 2 April 7, 2026
A Study of Orforglipron (LY3502970) on Cardiovascular Outcomes in Adults With Atherosclerotic Cardiovascular Disease and/or Chronic Kidney Disease (ATTAIN-Outcomes)
NCT07241390 Eli Lilly and Company
Recruiting Phase 3 December 1, 2025
Efficacy and Safety of Orforglipron in Participants With Peripheral Artery Disease
NCT07223593 Eli Lilly and Company
Recruiting Phase 3 October 31, 2025
Show 40 more studies
Study Status Phase Start
A Study of Orforglipron in Female Participants With Stress Urinary Incontinence Who Have Obesity or Overweight
NCT07202884 Eli Lilly and Company
Recruiting Phase 3 September 30, 2025
A Study of Orforglipron (LY3502970) in Participants With Obesity or Overweight and Osteoarthritis (OA) of the Knee
NCT07153471 Eli Lilly and Company
Active, not recruiting Phase 3 September 15, 2025
A Study of Orforglipron (LY3502970) in Participants With Obesity or Overweight and Type 2 Diabetes
NCT06972472 Eli Lilly and Company
Active, not recruiting Phase 3 May 19, 2025
A Master Protocol for Orforglipron (LY3502970) in Participants With Obesity or Overweight With and Without Type 2 Diabetes
NCT06993792 Eli Lilly and Company
Active, not recruiting Phase 3 May 15, 2025
A Study of Orforglipron (LY3502970) in Participants With Obesity or Overweight and at Least One Weight-Related Comorbidity
NCT06972459 Eli Lilly and Company
Active, not recruiting Phase 3 May 15, 2025
A Master Protocol Study of Orforglipron (LY3502970) in Participants With Hypertension and Obesity or Overweight (ATTAIN-Hypertension) GZL1
NCT06948435 Eli Lilly and Company
Active, not recruiting Phase 3 April 30, 2025
A Master Protocol for Orforglipron (LY3502970) in Participants With Hypertension and Obesity or Overweight: (ATTAIN-Hypertension Screening)
NCT06948422 Eli Lilly and Company
Active, not recruiting Phase 3 April 30, 2025
A Master Protocol Study of Orforglipron (LY3502970) in Participants With Hypertension and Obesity or Overweight (ATTAIN-Hypertension) GZL2
NCT06952530 Eli Lilly and Company
Active, not recruiting Phase 3 April 30, 2025
A Study of Orforglipron (LY3502970) in Adolescent Participants With Obesity, or Overweight With Related Comorbidities
NCT06672939 Eli Lilly and Company
Recruiting Phase 3 November 18, 2024
A Platform Trial for Pediatric Participants With Obesity or Overweight (LY900040)
NCT06672549 Eli Lilly and Company
Recruiting Phase 3 November 18, 2024
A Study of Orforglipron (LY3502970) in Adult Participants With Obesity or Overweight With Weight-Related Comorbidities
NCT05869903 Eli Lilly and Company Results posted
Active, not recruiting Phase 3 June 5, 2023
A Study of Orforglipron (LY3502970) in Adult Participants With Obesity or Overweight
NCT06824051 Eli Lilly and Company
Completed Phase 1 February 17, 2025
A Study of Orforglipron (LY3502970) to Compare a Single Capsule and Multiple Capsules in Healthy Participants
NCT06692348 Eli Lilly and Company
Completed Phase 1 December 13, 2024
A Drug-Drug Interaction Study of Orforglipron (LY3502970) With Quinidine in Healthy Participants
NCT06704763 Eli Lilly and Company Results posted
Completed Phase 1 December 6, 2024
A Master Protocol for Orforglipron in Participants With Obstructive Sleep Apnea and Obesity or Overweight
NCT06649045 Eli Lilly and Company
Completed Phase 3 October 22, 2024
A Study of Orforglipron for the Maintenance of Body Weight Reduction in Participants Who Have Obesity or Overweight With Weight-Related Comorbidities (ATTAIN-MAINTAIN)
NCT06584916 Eli Lilly and Company
Completed Phase 3 September 13, 2024
A Study to Compare Tablets and Capsules of Orforglipron (LY3502970) in Healthy Participants Who Are Obese or Overweight
NCT06440980 Eli Lilly and Company Results posted
Completed Phase 1 June 24, 2024
A Drug-Drug Interaction (DDI) Study of Orforglipron With Carbamazepine in Healthy Participants
NCT06370728 Eli Lilly and Company Results posted
Completed Phase 1 May 6, 2024
A Study of Orforglipron (LY3502970) Compared With Dapagliflozin in Adult Participants With Type 2 Diabetes and Inadequate Glycemic Control With Metformin
NCT06192108 Eli Lilly and Company Results posted
Completed Phase 3 January 10, 2024
A Drug-Drug Interaction Study of Orforglipron (LY3502970) in Healthy Overweight and Obese Participants
NCT06186622 Eli Lilly and Company Results posted
Completed Phase 1 January 2, 2024
A Study of Orforglipron (LY3502970) in Participants With Type 2 Diabetes and Inadequate Glycemic Control With Insulin Glargine, With or Without Metformin and/or SGLT-2 Inhibitor
NCT06109311 Eli Lilly and Company Results posted
Completed Phase 3 November 10, 2023
A Phase I Study of LY3502970 in Healthy Participants
NCT06085482 Eli Lilly and Company Results posted
Completed Phase 1 October 19, 2023
A Long-term Safety Study of Orforglipron (LY3502970) in Participants With Type 2 Diabetes
NCT06010004 Eli Lilly and Company Results posted
Completed Phase 3 September 28, 2023
A Study of Orforglipron (LY3502970) Compared With Semaglutide in Participants With Type 2 Diabetes Inadequately Controlled With Metformin
NCT06045221 Eli Lilly and Company Results posted
Completed Phase 3 September 22, 2023
A Study of LY3502970 in Chinese Participants With Obesity or Are Overweight With Weight-related Comorbidities
NCT06023095 Eli Lilly and Company Results posted
Completed Phase 1 September 21, 2023
A Study of Orforglipron (LY3502970) in Adult Participants With Type 2 Diabetes and Inadequate Glycemic Control With Diet and Exercise Alone
NCT05971940 Eli Lilly and Company Results posted
Completed Phase 3 August 9, 2023
A Study of Once-Daily Oral Orforglipron (LY3502970) in Japanese Adult Participants With Obesity Disease
NCT05931380 Eli Lilly and Company Results posted
Completed Phase 3 July 31, 2023
A Phase 1, Parallel, Single-Dose, Open-Label, Single-Period Study of LY3502970 in Participants With Normal Renal Function and Participants With Renal Impairment.
NCT05936138 Eli Lilly and Company Results posted
Completed Phase 1 July 13, 2023
A Study of LY3502970 in Participants With Impaired and Normal Liver Function
NCT05882032 Eli Lilly and Company Results posted
Completed Phase 1 June 13, 2023
A Study of Orforglipron in Adult Participants With Obesity or Overweight and Type 2 Diabetes
NCT05872620 Eli Lilly and Company Results posted
Completed Phase 3 June 5, 2023
A Multiple Dose Study of LY3502970 in Healthy Overweight and Obese Participants
NCT05841238 Eli Lilly and Company Results posted
Completed Phase 1 April 26, 2023
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
NCT05803421 Eli Lilly and Company
Completed Phase 3 April 3, 2023
A Drug Interaction Study of Cyclosporine and LY3502970 in Healthy Participants
NCT05573230 Eli Lilly and Company Results posted
Completed Phase 1 October 17, 2022
A Drug Interaction Study of Clarithromycin and LY3502970 in Healthy Participants
NCT05469126 Eli Lilly and Company Results posted
Completed Phase 1 August 1, 2022
A Study of LY3502970 in Healthy Overweight and Obese Participants
NCT05313802 Eli Lilly and Company Results posted
Completed Phase 1 May 26, 2022
A Study of Two Different Formulations of LY3502970 in Healthy Participants
NCT05341089 Eli Lilly and Company Results posted
Completed Phase 1 May 17, 2022
A Study of LY3502970 in Japanese Participants With Type 2 Diabetes Mellitus
NCT05086445 Eli Lilly and Company Results posted
Completed Phase 1 November 12, 2021
A Multiple-Dose Study of LY3502970 in Healthy Participants
NCT05110794 Eli Lilly and Company Results posted
Completed Phase 1 November 5, 2021
A Study of LY3502970 in Participants With Obesity or Overweight With Weight-related Comorbidities
NCT05051579 Eli Lilly and Company Results posted
Completed Phase 2 September 29, 2021
A Multiple Dose Study of LY3502970 in Healthy Participants
NCT05051566 Eli Lilly and Company Results posted
Completed Phase 1 September 16, 2021

All 54 studies on ClinicalTrials.gov ↗

Source: ClinicalTrials.gov · verified October 30, 2026

Adverse event reports

Reports
728
Serious
20
With death outcome
0

Most reported reactions

  • Nausea 180
  • Drug ineffective 122
  • Constipation 81
  • Vomiting 75
  • Fatigue 70
  • Weight increased 69
  • Weight loss poor 64
  • Diarrhoea 62
  • Headache 58
  • Abdominal pain upper 36
  • Dizziness 34
  • Abdominal distension 33

Adverse event reports do not prove that the substance caused these effects. Side effects not listed here may still occur. Reaction terms are MedDRA terms as reported to FAERS.

Source: FDA FAERS (FAERS data as of July 30, 2026) · verified October 30, 2026 · API query

FDA prescribing information

Official US prescribing information. Dosing sections are intentionally not shown.

Boxed warning FOUNDAYO · July 29, 2026
Original FDA text (English) WARNING: RISK OF THYROID C-CELL TUMORS In products with glucagon-like peptide-1 (GLP-1) receptor agonist activity that are pharmacologically active in rats and mice, rodent thyroid C-cell tumors (adenomas and carcinomas) have been observed at clinically relevant exposures and are considered GLP-1 receptor-dependent effects in rodents. Orforglipron is not pharmacologically active in rats or mice and did not produce tumors in rodents [see Nonclinical Toxicology ( 13.1 )] . While orforglipron is pharmacologically active at the human GLP-1 receptor, the human relevance of GLP-1 receptor-dependent thyroid C-cell tumors observed in rodents has not been determined [see Warnings and Precautions ( 5.1 ), Nonclinical Toxicology ( 13.1 )] . FOUNDAYO is contraindicated in patients with a personal or family history of medullary thyroid carcinoma (MTC) or in patients with Multiple Endocrine Neoplasia syndrome type 2 (MEN 2) [see Contraindications ( 4 )] . Counsel patients regarding the potential risk for MTC with the use of FOUNDAYO and inform them of symptoms of thyroid tumors (e.g., a mass in the neck, dysphagia, dyspnea, persistent hoarseness). Routine monitoring of serum calcitonin or using thyroid ultrasound is of uncertain value for early detection of MTC in patients treated with FOUNDAYO [see Contraindications ( 4 ), Warnings and Precautions ( 5.1 )] . WARNING: RISK OF THYROID C-CELL TUMORS See full prescribing information for complete boxed warning. In products with glucagon-like peptide-1 (GLP-1) receptor agonist activity that are pharmacologically active in rats and mice, rodent thyroid C-cell tumors (adenomas and carcinomas) have been observed at clinically relevant exposures and are considered GLP-1 receptor-dependent effects in rodents. Orforglipron is not pharmacologically active in rats or mice and did not produce tumors in rodents ( 13.1 ) . While orforglipron is pharmacologically active at the human GLP-1 receptor, the human relevance of GLP-1 receptor-dependent thyroid C-cell tumors observed in rodents has not been determined ( 5.1 , 13.1 ). FOUNDAYO is contraindicated in patients with a personal or family history of medullary thyroid carcinoma (MTC) or in patients with Multiple Endocrine Neoplasia syndrome type 2 (MEN 2). Counsel patients regarding the potential risk of MTC and symptoms of thyroid tumors ( 4 , 5.1 ).
  • FOUNDAYO HUMAN PRESCRIPTION DRUG Eli Lilly and Company July 29, 2026

Source: DailyMed / openFDA

In the news

Latest headlines and official notices that mention this substance, in their original language. Third-party content, not medical advice.

  1. EMA · News and press releases Official

    Meeting highlights from the Committee for Medicinal Products for Human Use (CHMP) 12-15 October 2026

    Agency summary (EMA): Six new medicines recommended for approvalEMA’s human medicines committee (CHMP) recommended six medicines for approval at its October 2026 meeting. Rasonque (daraxonrasib)…

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Change history

No changes since monitoring began on October 30, 2026.