Two leading GLP-1 therapies for obesity and type 2 diabetes

Semaglutide vs tirzepatide: trial pipelines compared

A side-by-side view of the semaglutide and tirzepatide clinical trial pipelines, built from live ClinicalTrials.gov data and refreshed daily. ClinicalTrials.gov lists 16+ phase 2–4 trials for semaglutide and 16+ for tirzepatide. Add up to three more drugs to widen the comparison.

semaglutide (16) vs tirzepatide (16)15 active20082032
semaglutidetirzepatide
Key
Actual date
Anticipated
Forecast to primary completion
RecruitingActive, not recruitingNot yet recruitingCompleted
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'18
'20
'22
'24
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'28
'30
'32
semaglutide
A Randomised Controlled Clinical Trial in Type 2 Diabetes Comparing Semaglutide to Placebo and LiraglutideP2
SUSTAIN™P3
PIONEER 7P3
Investigation of Efficacy and Safety of Three Dose Levels of Subcutaneous Semaglutide Once Daily Versus Placebo in Subjects With Non-alcoholic Steatohepatitis.P2
PIONEER 8P3
A Study to Test Whether Different Doses of BI 456906 Are Effective in Treating Adults With Type 2 Diabetes.P2
A Research Study to See How Well the New Weekly Medicine IcoSema, Which is a Combination of Insulin Icodec and Semaglutide, Controls Blood Sugar Level in People With Type 2 Diabetes Compared to Insulin Glargine Taken Daily With Insulin Aspart (COMBINE 3)P3
A Research Study to Compare Two Semaglutide Medicines in People With Type 2 DiabetesP3
A Research Study to See How Much CagriSema Lowers Blood Sugar and Body Weight Compared to Tirzepatide in People With Type 2 Diabetes Treated With Metformin With or Without an SGLT2 InhibitorP3
COMBINE 4P3
Steno1P3
A Research Study Comparing How Well Different Doses of the Medicine NNC0519-0130 Can Reduce Kidney Damage in People Living With Chronic Kidney DiseaseP2
A Research Study to See if Two Different Formulations of Oral Semaglutide Are Equally Safe and Effective in Reducing the Blood Sugar Level in Japanese People With Type 2 DiabetesP3
Improved Treatment and Monitoring of Alzheimer's DiseaseP2
A Research Study Comparing How Well Different Doses of the Medicine NNC0662-0419 Lower Blood Sugar in People With Type 2 DiabetesP2
UNIGUIDE-2P3
tirzepatide
SURMOUNT-1P3
SURMOUNT-OSAP3
SURPASS-SWITCHP4
A Study of Investigational Tirzepatide (LY3298176) Doses in Participants With Type 2 Diabetes and ObesityP2
A Research Study to See How Much CagriSema Lowers Blood Sugar and Body Weight Compared to Tirzepatide in People With Type 2 Diabetes Treated With Metformin With or Without an SGLT2 InhibitorP3
A Study of Orforglipron for the Maintenance of Body Weight Reduction in Participants Who Have Obesity or Overweight With Weight-Related Comorbidities (ATTAIN-MAINTAIN)P3
A Randomized Controlled Trial Comparing the Effectiveness of Different Treatment Options for Weight Management After Discontinuation of Semaglutide and Tirzepatide (GLP1 Transition Trial)P4
A Study to Investigate Weight Management With LY3841136 and Tirzepatide (LY3298176), Alone or in Combination, in Adult Participants With Obesity or Overweight With Type 2 DiabetesP2
TOGETHER-PsOP3
STOP KNEE-OAP4
GYMINDAP2
TABP2
SURMOUNT-1P3
A Study of Tirzepatide (LY3298176) in Adult Participants in India With Either Type 2 Diabetes Mellitus or ObesityP4
AI-assisted Multi-domain Lifestyle Versus Tirzepatide for Weight Loss Maintenance in Adults With Type 2 Diabetes (AIM-MAINTAIN)P4
AI-LIFE-T2D-OBP4

Upcoming readouts

12 ahead · 2 drugs

Select a trial to load its full ClinicalTrials.gov record.

Head to head

Registered phase 2–4 trial activity for each drug, computed from live ClinicalTrials.gov data.

semaglutide (Ozempic / Wegovy)GLP-1 & incretin therapies
16+

Major trials tracked

10

Phase 3 trials

3

Actively recruiting

Feb 2028

Next phase 3 readout

tirzepatide (Mounjaro / Zepbound)GLP-1 & incretin therapies
16+

Major trials tracked

6

Phase 3 trials

4

Actively recruiting

Feb 2027

Next phase 3 readout

Key trials across both drugs

Top 16 registered phase 2–4 trials across semaglutide and tirzepatide, ordered by phase and status. Each links to its full ClinicalTrials.gov record.

DrugTrialTitlePhaseStatusPrimary completion
tirzepatideNCT06191848STOP KNEE-OA: Subcutaneous Tirzepatide Once-weekly in Patients With Obesity and Knee Osteoarthritis (STOP KNEE…Phase 4RecruitingMay 2027
tirzepatideNCT07438444A Study of Tirzepatide (LY3298176) in Adult Participants in India With Either Type 2 Diabetes Me…Phase 4RecruitingOct 2027
tirzepatideNCT07697391AI-LIFE-T2D-OB: AI-Assisted Lifestyle Intervention Versus Tirzepatide for Obesity and Newly Diagnosed Type 2 Dia…Phase 4Not yet recruitingOct 2027
tirzepatideNCT07555730AI-assisted Multi-domain Lifestyle Versus Tirzepatide for Weight Loss Maintenance in Adults With…Phase 4Not yet recruitingSept 2028
tirzepatideNCT05564039SURPASS-SWITCH: A Study of Tirzepatide (LY3298176) in Adult Participants With Type 2 Diabetes Switching From Dul…Phase 4CompletedJul 2024
tirzepatideNCT06605703A Randomized Controlled Trial Comparing the Effectiveness of Different Treatment Options for Wei…Phase 4CompletedFeb 2026
tirzepatideNCT07481747SURMOUNT-1: Efficacy and Safety of Tirzepatide Once Weekly Versus Placebo in Participants Who Are Either Obe…Phase 3RecruitingFeb 2027
semaglutideNCT06082063Steno1: Multifactorial Intervention to Reduce Cardiovascular Disease in Type 1 DiabetesPhase 3RecruitingJul 2029
semaglutideNCT07271251A Research Study to See if Two Different Formulations of Oral Semaglutide Are Equally Safe and E…Phase 3Active, not recruitingJun 2026
semaglutideNCT07653477UNIGUIDE-2: Phase III Study of UBT251 Injection in Patients With Type 2 Diabetes With Inadequate Glycemic Co…Phase 3Not yet recruitingFeb 2028
semaglutideNCT02254291SUSTAIN™: A Trial Comparing the Safety and Efficacy of Semaglutide Once Weekly Versus Sitagliptin Once Dai…Phase 3CompletedNov 2015
semaglutideNCT03021187PIONEER 8: Efficacy and Safety of Oral Semaglutide Versus Placebo in Subjects With Type 2 Diabetes Mellitus…Phase 3CompletedJan 2018
semaglutideNCT02849080PIONEER 7: Efficacy and Safety of Oral Semaglutide Using a Flexible Dose Adjustment Based on Clinical Evalu…Phase 3CompletedFeb 2018
tirzepatideNCT04184622SURMOUNT-1: A Study of Tirzepatide (LY3298176) in Participants With Obesity or OverweightPhase 3CompletedApr 2022
semaglutideNCT05478252A Research Study to Compare Two Semaglutide Medicines in People With Type 2 DiabetesPhase 3CompletedAug 2023
semaglutideNCT05013229A Research Study to See How Well the New Weekly Medicine IcoSema, Which is a Combination of Insu…Phase 3CompletedNov 2023

FAQ

How do the semaglutide and tirzepatide clinical pipelines compare?
ClinicalTrials.gov currently lists 16+ phase 2–4 trials for semaglutide and 16+ for tirzepatide. The timeline above plots both side by side and refreshes daily.
Where does this data come from?
All trial data is sourced from ClinicalTrials.gov (CTGov) and refreshed on this page daily. ComplyRx does not add efficacy or superiority claims; the comparison shows registered trial activity only.
Can I add more drugs to the comparison?
Yes. The tool above compares up to five drugs on one timeline, with PNG and PDF export. Add any competitor in the search box.
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