COMPARISON

Liraglutide vs Semaglutide

5 attributes held for at least one of the two. 4 differ. Each value carries the register it came from and the date that register was read.

Answer

Liraglutide is authorised or registered in 10 and Semaglutide in 10 of the 10 registers read. Liraglutide: highest phase Phase 4 (after approval). Semaglutide: highest phase Phase 4 (after approval). 41 registered trials include both.

States no view on which is preferable, safer or more effective. Not medical advice.

LiraglutideSemaglutide
Registered trials
differs
518
clinicaltrials.gov · 2026-10-03
861
clinicaltrials.gov · 2026-10-03
FDA label
differs
FDA-approved: Liraglutide
openfda · 2026-10-03T17:23:44.062Z
FDA-approved: OZEMPIC
openfda · 2026-10-03T17:23:44.062Z
EU authorisation
Authorised
ema · 2026-10-03
Authorised
ema · 2026-10-03
EU authorised on
differs
2009-06-30
ema · 2026-10-03
2018-02-08
ema · 2026-10-03
ATC code
differs
A10BJ02
ema · 2026-10-03
A10BJ06
ema · 2026-10-03

SIDE EFFECTS

Most common side effects, each beside its own placebo

Side effectLiraglutideplaceboSemaglutideplacebo
Nausea26.4%7.4%19.5%4.5%
Diarrhoea13.1%6.1%11.8%4.5%
Nasopharyngitis12.4%9.3%7.5%6.1%
Vomiting9.0%2.1%8.6%1.6%
Constipation8.8%3.1%8.9%2.8%
Headache8.3%5.9%4.0%2.1%
Decreased appetite6.6%1.2%6.3%1.3%
Upper respiratory tract infection6.0%4.7%2.7%1.9%
Dyspepsia5.3%1.3%5.3%1.2%
Hypoglycaemia8.7%3.3%--
COVID-19--17.0%17.8%

Trial register Liraglutide: 42 placebo-controlled trials; Semaglutide: 50. Each peptide is compared with placebo in its own trials, not with the other: a dash means the event is not in that peptide's top list. Liraglutide side effects · Semaglutide side effects

LEGAL STATUS

Approval in each country read

CountryLiraglutideSemaglutideRegister
United StatesFDA-approvedFDA-approvedRegulator FDA
European UnionAuthorisedAuthorisedRegulator EMA
United KingdomAuthorisedAuthorisedRegulator MHRA
CanadaAuthorisedAuthorisedRegulator Health Canada
AustraliaRegisteredRegisteredRegulator TGA
SwitzerlandAuthorisedAuthorisedRegulator Swissmedic
BrazilRegistadoRegistadoRegulator ANVISA
SerbiaAuthorisedAuthorisedRegulator ALIMS
SingaporeRegisteredRegisteredRegulator HSA
TurkeyRuhsatliRuhsatliRegulator TITCK

HEAD TO HEAD

41 registered trials include both

NCT06836284The Evira Study: Additional Support During Obesity Treatment
RECRUITING · updated 2026-09-10
NCT07787936GLP-1/GIP Receptor Agonists in Obesity-Related HFpEF: The GLIDE-HF Registry
NOT_YET_RECRUITING · updated 2026-08-26
NCT05220917Comparative Effectiveness and Safety of Four Second Line Pharmacological Strategies in Type 2 Diabetes Study
ACTIVE_NOT_RECRUITING · updated 2026-08-13
NCT06374875Fibrosis Lessens After Metabolic Surgery
RECRUITING · updated 2026-07-31
NCT07702461Determination of Resistance Training Status for Patients on Glucagon-Like Peptide-1 Receptor Agonists
RECRUITING · updated 2026-07-24
NCT07225816Examination of How the Duration of Fasting and Temporary Stopping of GLP-1 Medications Affect the Amount of Food Left in the Stomach in People Using Liraglutide
RECRUITING · updated 2026-07-21
NCT07677865GLP-1 Receptor Agonists and Alzheimer's Disease: A Multi-National Target Trial Emulation
COMPLETED · updated 2026-07-01
NCT07640139Estimating the Impact of Obesity Medications on Clinical and Economic Outcomes
ENROLLING_BY_INVITATION · updated 2026-06-10
NCT07107334A Study to Estimate Early Clinical Efficacy Signals of GLP-1 Agonist Administration in Conjunction With Levonorgestrel Intrauterine Device in Obese Patients Wit
RECRUITING · updated 2026-06-08
NCT07539584Adiponectin in Patients With Metabolic Disorders
COMPLETED · updated 2026-04-22
NCT06903923Bone Metabolism in 12-21 Year Olds Undergoing Glucagon Like Peptide (GLP)-1 Receptor Agonist Therapy
RECRUITING · updated 2026-04-17
NCT07027969Metabolic Surgery for Atrial Fibrillation Elimination
NOT_YET_RECRUITING · updated 2026-04-17
NCT05390892PREvention of CardIovascular and DiabEtic kidNey Disease in Type 2 Diabetes
RECRUITING · updated 2026-04-13
NCT05925959Preoperative Weight Loss for Open Abdominal Wall Reconstruction
RECRUITING · updated 2026-03-23
NCT03498001Effects of GLP-1 Agonists on CArdiac Steatosis Evaluated by Magnetic Resonance Imaging
COMPLETED · updated 2026-02-04
NCT05579249A Research Study Comparing Wegovy to Other Weight Management Drugs in People Living With Obesity in America
COMPLETED · updated 2026-01-14
NCT07325435Beta Cell Function in Type 2 Diabetes: Differential Effects of SGLT2 Inhibitors and GLIP-Receptor Agonists
ACTIVE_NOT_RECRUITING · updated 2026-01-08
NCT07309094Clinical, Morphometric and Biochemical Effects on Adiposopathy Associated With the Use of GLP-1RA in CKD
RECRUITING · updated 2025-12-30
NCT06533527Holding vs. Continuing Incretin-based Therapies Before Upper Endoscopy
COMPLETED · updated 2025-12-05
NCT07188545Using Secondary Data to Evaluate Sex-based Heterogeneity of GLP-1 Agonists and SGLT2 Inhibitors on Cardiovascular-Kidney-Metabolic Health (CKMH) Outcomes in Rea
ACTIVE_NOT_RECRUITING · updated 2025-09-23

The 20 most recently updated are listed.

Values reproduce public registers on the dates shown. This comparison states no view on which compound is preferable, safer or more effective. Not medical, legal or regulatory advice.

WEEKLY

Register Watch, weekly

New trials, approvals and enforcement actions. One email a week.