A triple agonist against a dual agonist in metabolic disease

Retatrutide vs tirzepatide: trial pipelines compared

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

retatrutide (16) vs tirzepatide (16)15 active2018–2032
retatrutidetirzepatide
Key
Actual date
Anticipated
Forecast to primary completion
RecruitingActive, not recruitingNot yet recruitingCompleted
'18
'20
'22
'24
'26
'28
'30
'32
retatrutide
A Study of LY3437943 in Participants With Type 2 DiabetesP2
A Study of LY3437943 in Participants Who Have Obesity or Are OverweightP2
TRIUMPH-3P3
TRIUMPH-1P3
TRIUMPH-2P3
TRIUMPH-4P3
Effect of Retatrutide Compared With Semaglutide in Adult Participants With Type 2 Diabetes and Inadequate Glycemic Control With Metformin With or Without SGLT2 Inhibitor (TRANSCEND-T2D-2)P3
Effect of Retatrutide Compared With Placebo in Participants With Type 2 Diabetes and Moderate or Severe Renal Impairment, With Inadequate Glycemic Control on Basal Insulin, With or Without Metformin and/or SGLT2 Inhibitor (TRANSCEND-T2D-3)P3
Effect of Retatrutide Compared With Placebo in Adult Participants With Type 2 Diabetes and Inadequate Glycemic Control With Diet and Exercise Alone (TRANSCEND-T2D-1)P3
The Effect of Retatrutide Once Weekly on Cardiovascular Outcomes and Kidney Outcomes in Adults Living With Obesity (TRIUMPH-Outcomes)P3
TRIUMPH-5P3
TRIUMPH-6P3
TRIUMPH-7P3
A Master Protocol of Multiple Agents in Adults With Metabolic Dysfunction-Associated Steatotic Liver Disease (SYNERGY-Outcomes)P3
TRIUMPH-9P3
GZBFP2
tirzepatide
SURPASS-4P3
SYNERGY-NASHP2
SURMOUNT-3P3
SURMOUNT-CNP3
SURPASS-CN-INSP3
A Study of Tirzepatide (LY3298176) in Chinese Participants With Type 2 Diabetes (SURPASS-CN-MONO)P3
A Study of Tirzepatide (LY3298176) Plus Mibavademab Compared With Tirzepatide Alone in Adult Participants With ObesityP2
T-RAMP4
STOP KNEE-OAP4
Efficacy and Safety of GZR18 Every 2 Weeks Versus Tirzepatide and Placebo in Obese or Overweight ParticipantsP2
SURPASS-T1D-1P3
Weekly GLP-1 Receptor Agonists in Obese Individuals Without DiabetesP3
Multi-Site Trial of Tirzepatide for Smoking CessationP2
AI-LIFE-T2D-OBP4
Safety and Efficacy of NA-931 and Tirzepatide in Adults Who Are Overweight or ObeseP2
TOPAZP2

Upcoming readouts

13 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.

retatrutideGLP-1 & incretin therapies
16+

Major trials tracked

13

Phase 3 trials

2

Actively recruiting

Nov 2026

Next phase 3 readout

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

Major trials tracked

7

Phase 3 trials

1

Actively recruiting

Nov 2026

Next phase 3 readout

Key trials across both drugs

Top 16 registered phase 2–4 trials across retatrutide and tirzepatide, ordered by phase and status. Trial names open the full ComplyRx trial page; NCT ids link to ClinicalTrials.gov.

DrugTrialTitlePhaseStatusPrimary completion
tirzepatideNCT06191848STOP KNEE-OA: Subcutaneous Tirzepatide Once-weekly in Patients With Obesity and Knee Osteoarthritis (STOP KNEE…Phase 4Active, not recruitingMay 2027
tirzepatideNCT07697391AI-LIFE-T2D-OB: AI-Assisted Lifestyle Intervention Versus Tirzepatide for Obesity and Newly Diagnosed Type 2 Dia…Phase 4Not yet recruitingOct 2027
tirzepatideNCT06635057T-RAM: A Study of Tirzepatide (LY3298176) in Participants With Type 2 Diabetes During RamadanPhase 4CompletedApr 2026
retatrutideNCT07165028A Master Protocol of Multiple Agents in Adults With Metabolic Dysfunction-Associated Steatotic L…Phase 3RecruitingAug 2030
retatrutideNCT06260722Effect of Retatrutide Compared With Semaglutide in Adult Participants With Type 2 Diabetes and I…Phase 3Active, not recruitingAug 2026
retatrutideNCT06297603Effect of Retatrutide Compared With Placebo in Participants With Type 2 Diabetes and Moderate or…Phase 3Active, not recruitingOct 2026
retatrutideNCT06662383TRIUMPH-5: A Study of Retatrutide (LY3437943) Compared to Tirzepatide (LY3298176) in Adults Who Have Obesit…Phase 3Active, not recruitingNov 2026
tirzepatideNCT06914895SURPASS-T1D-1: A Study of Tirzepatide (LY3298176) Compared With Placebo in Adults With Type 1 Diabetes and Obes…Phase 3Active, not recruitingNov 2026
retatrutideNCT07035093TRIUMPH-7: A Study of Retatrutide (LY3437943) in Participants Who Have Obesity or Overweight and Chronic Lo…Phase 3Active, not recruitingSept 2027
retatrutideNCT06859268TRIUMPH-6: A Study of Retatrutide (LY3437943) in the Maintenance of Weight Reduction in Individuals With Ob…Phase 3Active, not recruitingApr 2028
retatrutideNCT07357415TRIUMPH-9: A Study of Retatrutide (LY3437943) in Participants Without Type 2 Diabetes Who Have Obesity or O…Phase 3Active, not recruitingOct 2028
retatrutideNCT06383390The Effect of Retatrutide Once Weekly on Cardiovascular Outcomes and Kidney Outcomes in Adults L…Phase 3Active, not recruitingFeb 2029
tirzepatideNCT03730662SURPASS-4: A Study of Tirzepatide (LY3298176) Once a Week Versus Insulin Glargine Once a Day in Participant…Phase 3CompletedJan 2021
tirzepatideNCT05024032SURMOUNT-CN: A Study of Tirzepatide (LY3298176) in Chinese Participants Without Type 2 Diabetes Who Have Obes…Phase 3CompletedDec 2022
tirzepatideNCT04657016SURMOUNT-3: A Study of Tirzepatide (LY3298176) In Participants After A Lifestyle Weight Loss ProgramPhase 3CompletedApr 2023
tirzepatideNCT05691712SURPASS-CN-INS: A Study of Tirzepatide (LY3298176) in Chinese Participants With Type 2 DiabetesPhase 3CompletedJul 2024

Track retatrutide and tirzepatide with ComplyRx

Get an alert when a trial changes status, moves its completion date, or a new trial registers in scope. Checked nightly against ClinicalTrials.gov.

Track both drugs

FAQ

How do the retatrutide and tirzepatide clinical pipelines compare?
ClinicalTrials.gov currently lists 16+ phase 2–4 trials for retatrutide 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.

Keep following
what matters.

Choose the drugs, companies or disease areas you follow. Bring trial changes and upcoming readouts into one watch.

Build your watch

Choose what to track in the watch builder.