Skip to content

A Study of Tirzepatide (LY3298176) in Pediatric Participants With Obesity

A Safety, Tolerability and Pharmacokinetic Study of Tirzepatide for the Treatment of Pediatric Participants (6 Years to 11 Years) With Obesity

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05696847
Enrollment
28
Registered
2023-01-25
Start date
2023-02-07
Completion date
2025-01-16
Last updated
2025-08-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obesity

Keywords

Pediatrics, Obesity, Chronic weight management

Brief summary

The main purpose of this study is to evaluate the safety and tolerability of tirzepatide (LY3298176) in pediatric participants with obesity. The blood tests will be performed to investigate how the body processes the study drug in these participants. For each participant, the study will last about approximately 13 weeks excluding the screening period.

Interventions

DRUGTirzepatide

Administered SC

DRUGPlacebo

Administered SC

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
6 Years to 11 Years
Healthy volunteers
No

Inclusion criteria

* Male and female participants with body mass index (BMI) ≥ the 95th percentile for age and sex * Have failed to achieve adequate weight loss through lifestyle modification in the investigator's opinion * Female participants only: Determined as prepubertal Tanner Stage 1.

Exclusion criteria

* Change in body weight above 5 kg (11 lbs) within 90 days before screening irrespective of medical records * Have obesity induced by other endocrinologic disorders (for example, Cushing syndrome) or diagnosed monogenetic or syndromic forms of obesity * Have acute or chronic pancreatitis or a history of acute idiopathic pancreatitis; or have other GI disorders * Have a known clinically significant gastric emptying, have undergone weight loss surgery such as gastric bypass (bariatric) surgery or restrictive bariatric surger, or have endoscopic or device-based therapy for obesity or have had device removal within the last 6 months. * Have confirmed type 1 or type 2 diabetes mellitus * Have a history or current cerebrovascular, respiratory, hepatic, renal, GI, endocrine, hematological, or neurological disorders capable of significantly altering the absorption, metabolism, or elimination of drugs; constituting a risk when taking the IP; or may interfere with the interpretation of data

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Event(s) (SAEs)Baseline through Week 14Percentage of participants with TEAEs and SAEs were reported here. A summary of TEAEs, SAEs and other non-serious adverse events, regardless of causality, is located in the Reported Adverse Events section of this record.

Secondary

MeasureTime frameDescription
Pharmacokinetics (PK): Area Under the Concentration Versus Time Curve From Time 0 to the End of the Dosing Interval (AUC0-tau) of TirzepatidePredose on weeks 3, 6, 8; 12 and 24 hours post first dose; Within 24 to 96 hours post-dose at week 4; Within 120 to 168 hours post-dose at week 6.PK: AUC0-tau of tirzepatide was reported.
PK: Maximum Concentration (Cmax) of TirzepatidePredose on weeks 3, 6, 8; 12 and 24 hours post first dose; Within 24 to 96 hours post-dose at week 4; Within 120 to 168 hours post-dose at week 6.PK: Cmax of tirzepatide

Countries

United States

Participant flow

Participants by arm

ArmCount
Cohort 1: Placebo (BW >=50 kg)
Participants in this cohort had a screening body weight of at least 50 kg received placebo administered SC QW during Weeks 1 to 8.
2
Cohort 1: 2.5-5 mg Tirzepatide (BW >=50 kg)
Participants in this cohort had a screening body weight of at least 50 kg received 2.5 mg tirzepatide administered SC QW during Weeks 1 to 4 followed by 5 mg tirzepatide during Weeks 5 to 8.
6
Cohort 2: Placebo (BW <50 kg)
Participants in this cohort had a screening body weight less than 50 kg received placebo administered SC QW during Weeks 1 to 8.
2
Cohort 2: 1.25-2.5 mg Tirzepatide (BW <50 kg)
Participants in this cohort had a screening body weight less than 50 kg received 1.25 mg tirzepatide administered SC QW during Weeks 1 to 4 followed by 2.5 mg tirzepatide during Weeks 5 to 8.
7
Cohort 3: Placebo (BW 40 to 60 kg)
Participants in this cohort had a screening body weight between 40 to 60 kg, inclusive, received placebo administered SC QW during Weeks 1 to 8.
3
Cohort 3: 2.5-5 mg Tirzepatide (BW 40 to 60 kg)
Participants in this cohort had a screening body weight between 40 to 60 kg, inclusive, received 2.5 mg tirzepatide administered SC QW during Weeks 1 to 4 followed by 5 mg tirzepatide during Weeks 5 to 8.
7
Total27

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Overall StudyAdverse Event000001
Overall StudySponsor Decision000100
Overall StudyWithdrawal by Parent/Guardian010000
Overall StudyWithdrawal by Subject100000

Baseline characteristics

CharacteristicTotalCohort 1: 2.5-5 mg Tirzepatide (BW >=50 kg)Cohort 2: Placebo (BW <50 kg)Cohort 2: 1.25-2.5 mg Tirzepatide (BW <50 kg)Cohort 1: Placebo (BW >=50 kg)Cohort 3: Placebo (BW 40 to 60 kg)Cohort 3: 2.5-5 mg Tirzepatide (BW 40 to 60 kg)
Age, Categorical
<=18 years
27 Participants6 Participants2 Participants7 Participants2 Participants3 Participants7 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants1 Participants0 Participants2 Participants0 Participants0 Participants2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
22 Participants5 Participants2 Participants5 Participants2 Participants3 Participants5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
14 Participants4 Participants2 Participants2 Participants1 Participants1 Participants4 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
13 Participants2 Participants0 Participants5 Participants1 Participants2 Participants3 Participants
Region of Enrollment
United States
27 Participants6 Participants2 Participants7 Participants2 Participants3 Participants7 Participants
Sex: Female, Male
Female
17 Participants3 Participants2 Participants5 Participants1 Participants2 Participants4 Participants
Sex: Female, Male
Male
10 Participants3 Participants0 Participants2 Participants1 Participants1 Participants3 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
deaths
Total, all-cause mortality
0 / 20 / 60 / 20 / 70 / 30 / 7
other
Total, other adverse events
0 / 25 / 60 / 26 / 71 / 37 / 7
serious
Total, serious adverse events
0 / 20 / 60 / 20 / 70 / 30 / 7

Outcome results

Primary

Percentage of Participants With One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Event(s) (SAEs)

Percentage of participants with TEAEs and SAEs were reported here. A summary of TEAEs, SAEs and other non-serious adverse events, regardless of causality, is located in the Reported Adverse Events section of this record.

Time frame: Baseline through Week 14

Population: All participants who received at least one dose of study drug.

ArmMeasureGroupValue (NUMBER)
Cohort 1: Placebo (BW >=50 kg)Percentage of Participants With One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Event(s) (SAEs)TEAE0.0 Percentage of participants
Cohort 1: Placebo (BW >=50 kg)Percentage of Participants With One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Event(s) (SAEs)SAE0.0 Percentage of participants
Cohort 1: 2.5-5 mg Tirzepatide (BW >=50 kg)Percentage of Participants With One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Event(s) (SAEs)TEAE83.3 Percentage of participants
Cohort 1: 2.5-5 mg Tirzepatide (BW >=50 kg)Percentage of Participants With One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Event(s) (SAEs)SAE0.0 Percentage of participants
Cohort 2: Placebo (BW <50 kg)Percentage of Participants With One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Event(s) (SAEs)TEAE0.0 Percentage of participants
Cohort 2: Placebo (BW <50 kg)Percentage of Participants With One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Event(s) (SAEs)SAE0.0 Percentage of participants
Cohort 2: 1.25-2.5 mg Tirzepatide (BW <50 kg)Percentage of Participants With One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Event(s) (SAEs)TEAE85.7 Percentage of participants
Cohort 2: 1.25-2.5 mg Tirzepatide (BW <50 kg)Percentage of Participants With One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Event(s) (SAEs)SAE0.0 Percentage of participants
Cohort 3: Placebo (BW 40 to 60 kg)Percentage of Participants With One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Event(s) (SAEs)TEAE33.3 Percentage of participants
Cohort 3: Placebo (BW 40 to 60 kg)Percentage of Participants With One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Event(s) (SAEs)SAE0.0 Percentage of participants
Cohort 3: 2.5-5 mg Tirzepatide (BW 40 to 60 kg)Percentage of Participants With One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Event(s) (SAEs)TEAE100.0 Percentage of participants
Cohort 3: 2.5-5 mg Tirzepatide (BW 40 to 60 kg)Percentage of Participants With One or More Treatment Emergent Adverse Events (TEAEs) and Serious Adverse Event(s) (SAEs)SAE0.0 Percentage of participants
Secondary

Pharmacokinetics (PK): Area Under the Concentration Versus Time Curve From Time 0 to the End of the Dosing Interval (AUC0-tau) of Tirzepatide

PK: AUC0-tau of tirzepatide was reported.

Time frame: Predose on weeks 3, 6, 8; 12 and 24 hours post first dose; Within 24 to 96 hours post-dose at week 4; Within 120 to 168 hours post-dose at week 6.

Population: All participants who received at least one dose of tirzepatide and had evaluable PK data.

ArmMeasureValue (MEAN)Dispersion
Cohort 1: Placebo (BW >=50 kg)Pharmacokinetics (PK): Area Under the Concentration Versus Time Curve From Time 0 to the End of the Dosing Interval (AUC0-tau) of Tirzepatide105000 nanogram *hour per milliliter (ng*h/mL)Standard Deviation 33100
Cohort 1: 2.5-5 mg Tirzepatide (BW >=50 kg)Pharmacokinetics (PK): Area Under the Concentration Versus Time Curve From Time 0 to the End of the Dosing Interval (AUC0-tau) of Tirzepatide80800 nanogram *hour per milliliter (ng*h/mL)Standard Deviation 9580
Cohort 2: Placebo (BW <50 kg)Pharmacokinetics (PK): Area Under the Concentration Versus Time Curve From Time 0 to the End of the Dosing Interval (AUC0-tau) of Tirzepatide156000 nanogram *hour per milliliter (ng*h/mL)Standard Deviation 22500
Secondary

PK: Maximum Concentration (Cmax) of Tirzepatide

PK: Cmax of tirzepatide

Time frame: Predose on weeks 3, 6, 8; 12 and 24 hours post first dose; Within 24 to 96 hours post-dose at week 4; Within 120 to 168 hours post-dose at week 6.

Population: All participants who received at least one dose of tirzepatide and had evaluable PK data.

ArmMeasureValue (MEAN)Dispersion
Cohort 1: Placebo (BW >=50 kg)PK: Maximum Concentration (Cmax) of Tirzepatide884 nanograms per milliliter (ng/mL)Standard Deviation 243
Cohort 1: 2.5-5 mg Tirzepatide (BW >=50 kg)PK: Maximum Concentration (Cmax) of Tirzepatide674 nanograms per milliliter (ng/mL)Standard Deviation 63.8
Cohort 2: Placebo (BW <50 kg)PK: Maximum Concentration (Cmax) of Tirzepatide1280 nanograms per milliliter (ng/mL)Standard Deviation 194

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026