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A Study of Tirzepatide (LY3298176) in Healthy Participants

Pharmacokinetics, Safety, and Tolerability of a Solution Formulation of LY3298176 in Healthy Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03375463
Enrollment
52
Registered
2017-12-18
Start date
2017-12-19
Completion date
2018-12-27
Last updated
2024-02-05

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

Conditions

Healthy

Brief summary

This study has four parts. Each participant will enroll in one part. Part A: The purpose of Part A is to compare study drug tirzepatide solution formulation to a powder formulation mixed with water and given subcutaneously (SC) (just under the skin). Part A will measure how much of the study drug gets into the blood stream and how long it takes the body to get rid of it. Part B: The purpose of Part B is to evaluate the safety and tolerability of tirzepatide intravenous (IV) formulation when administered into a vein. Part C: The purpose of Part C is to evaluate the safety and tolerability of tirzepatide following multiple SC weekly doses of a solution. Part D: The purpose of Part D is to evaluate the safety and tolerability of tirzepatide following single IV bolus dose of lyophilized formulation. This study will last approximately 70 days for each part (Part A, Part B or Part D) and 92 days for Part C. This does not include screening. Screening is required within 28 days prior to the start of the study.

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)

Masking description

Part A, B and D are not blinded. Part C is blinded to Participant and Investigator

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes

Inclusion criteria

* Overtly healthy males or females, as determined by medical history and physical examination * Male participants: agree to use an effective method of contraception for the duration of the study and for 3 months following the last dose of investigational product * Female participants: not of childbearing potential due to surgical sterilization (hysterectomy or bilateral oophorectomy or tubal ligation) or menopause. Women with an intact uterus are deemed postmenopausal if they are greater than or equal to (≥)45 years old and have not taken hormones or oral contraceptives within the last year and had cessation of menses for at least 1 year. Or, have had at least 6 months of amenorrhea with follicle-stimulating hormone levels consistent with a postmenopausal state * Have a body mass index of 18.5 to 32.0 kilograms per meter squared (kg/m²) inclusive

Exclusion criteria

* Currently enrolled in a clinical trial involving an investigational product or any other type of medical research judged not to be scientifically or medically compatible with this study * Received treatment with a drug that has not received regulatory approval for any indication within 30 days of screening * Have a history of heart block, or a pulse rate (PR) interval greater than (\>)200 milliseconds (msec), or any abnormality in the 12-lead electrocardiogram (ECG) at screening that, in the opinion of the investigator, increases the risks associated with participating in the study * Have a significant history of or current cardiovascular (myocardial infarction, congestive heart failure, cerebrovascular accident, venous thromboembolism, etc.), respiratory, hepatic, renal, gastrointestinal (GI), endocrine, hematological (including history of thrombocytopenia), or neurological disorders capable of significantly altering the absorption, metabolism, or elimination of drugs, or of constituting a risk when taking the study medication, or interfering with the interpretation of data

Design outcomes

Primary

MeasureTime frameDescription
PK Part B: Area Under the Concentration Versus Time Curve [AUC (0-∞)] of TirzepatidePart B: Predose, 0.08 hours (h), 0.16h, 0.5h, 1h, 2h, 4h, 8h, 12h, 24h, 36h, 48h, 72h, 96h, 120h, 144h, 168h, 336h, 816h-864h and >=70 days post dosePK Part B: Area under the concentration versus time curve \[AUC (0-∞)\] of tirzepatide.
Pharmacokinetics (PK) Part A: Area Under the Concentration Versus Time Curve [AUC (0-∞)] of TirzepatidePart A: Predose, 8, 12, 24, 48, 72, 96, 120, 144, 168, 336, 480, 816-864 hours postdosePharmacokinetics (PK) Part A: Area under the concentration versus time curve \[AUC (0-∞)\] of tirzepatide.
PK Part A: Maximum Observed Drug Concentration (Cmax) of TirzepatidePart A: Predose, 8, 12, 24, 48, 72, 96, 120, 144, 168, 336, 480 and 816-864 hours postdosePK Part A: Maximum observed plasma drug concentration (Cmax) of tirzepatide.

Secondary

MeasureTime frameDescription
PK Part C: Area Under the Concentration Versus Time Curve [AUC (0-τ)] of TirzepatidePart C: Predose, 8 hours (h) (day (D)1), 24h (D2), 48h (D3),72h (D4), predose (D8), predose (D15), 8h (D15), 24h (D16), 48h (D17), 72h (D18), predose (D22), 8h (D22), 24h (D23), 48h (D24), 72h (D25), D57 and >= D96 postdosePK Part C: Area under the concentration versus time curve during one dosing interval (168 hours) \[AUC (0-τ)\] of tirzepatide.
PK Part C: Maximum Observed Drug Concentration (Cmax) of TirzepatidePart C: Predose, 8 hours (h) (day (D)1), 24h (D2), 48h (D3),72h (D4), predose (D8), predose (D15), 8h (D15), 24h (D16), 48h (D17), 72h (D18), predose (D22), 8h (D22), 24h (D23), 48h (D24), 72h (D25), D57 and >= D96 postdosePK Part C: Maximum observed plasma drug concentration (Cmax) of tirzepatide.
PK Part D: Area Under the Concentration Versus Time Curve [AUC (0-∞)] of TirzepatidePart D: Predose, 0.08 hours (h), 0.16h, 0.5h, 1h, 2h, 4h, 8h, 12h, 24h, 36h, 48h, 72h, 96h, 120h, 144h, 168h, 336h, 816-864h and >= 70 days postdosePK Part D: Area under the concentration versus time curve \[AUC (0-∞)\] of tirzepatide.

Countries

United States

Participant flow

Recruitment details

4-part study, Part A (2-period, 2-treatment, crossover study with at least 35 days of washout period), Part B (fixed, single-arm treatment study), Part C (placebo-controlled, 4-week dose escalation study) and Part D (a fixed, single-arm treatment study).

Participants by arm

ArmCount
Sequence 1-Part A
Participants received 5 milligrams (mg) of tirzepatide subcutaneous (SC) solution formulation in Period 1 and 5 mg of tirzepatide SC lyophilized formulation in Period 2.
10
Sequence 2-Part A
Participants received 5 mg of tirzepatide SC lyophilized formulation in Period 1 and 5 mg of tirzepatide SC solution formulation in Period 2.
10
0.5 mg Tirzepatide IV-Part B
Participants received Intravenous (IV) infusion of a single 0.5 mg dose of tirzepatide solution formulation.
8
Placebo SC-Part C
Participants received SC injection of placebo.
4
5 mg/7.5 mg/ 10 mg Tirzepatide SC-Part C
Participants received tirzepatide subcutaneous solution formulation at 5 mg on Days 1 (week 1) and 8 (Week 2), 7.5 mg on Day 15 (Week 3) and 10 mg on Day 22 (Week 4).
12
0.5 mg Tirzepatide Bolus IV-Part D
Participants received IV bolus of 0.5 mg tirzepatide lyophilized formulation.
8
Total52

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Period 1Adverse Event000010
Period 1Lost to Follow-up001000
Period 2Lost to Follow-up110000

Baseline characteristics

CharacteristicTotalSequence 2-Part A0.5 mg Tirzepatide IV-Part BPlacebo SC-Part CSequence 1-Part A5 mg/7.5 mg/ 10 mg Tirzepatide SC-Part C0.5 mg Tirzepatide Bolus IV-Part D
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
1 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants
Age, Categorical
Between 18 and 65 years
51 Participants10 Participants8 Participants4 Participants10 Participants11 Participants8 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
9 Participants1 Participants1 Participants1 Participants3 Participants1 Participants2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
43 Participants9 Participants7 Participants3 Participants7 Participants11 Participants6 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
2 Participants1 Participants1 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
29 Participants7 Participants3 Participants2 Participants5 Participants8 Participants4 Participants
Race (NIH/OMB)
More than one race
1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 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
20 Participants2 Participants4 Participants2 Participants5 Participants4 Participants3 Participants
Region of Enrollment
United States
52 participants10 participants8 participants4 participants10 participants12 participants8 participants
Sex: Female, Male
Female
15 Participants2 Participants0 Participants0 Participants2 Participants7 Participants4 Participants
Sex: Female, Male
Male
37 Participants8 Participants8 Participants4 Participants8 Participants5 Participants4 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
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
deaths
Total, all-cause mortality
0 / 200 / 200 / 80 / 40 / 120 / 120 / 120 / 110 / 8
other
Total, other adverse events
9 / 205 / 201 / 81 / 44 / 122 / 126 / 124 / 113 / 8
serious
Total, serious adverse events
0 / 200 / 200 / 80 / 40 / 120 / 120 / 120 / 110 / 8

Outcome results

Primary

Pharmacokinetics (PK) Part A: Area Under the Concentration Versus Time Curve [AUC (0-∞)] of Tirzepatide

Pharmacokinetics (PK) Part A: Area under the concentration versus time curve \[AUC (0-∞)\] of tirzepatide.

Time frame: Part A: Predose, 8, 12, 24, 48, 72, 96, 120, 144, 168, 336, 480, 816-864 hours postdose

Population: All randomized participants from Part A group, who received at least one dose of study drug and had evaluable PK data

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
5 mg Tirzepatide SC (Lyophilized)-Part APharmacokinetics (PK) Part A: Area Under the Concentration Versus Time Curve [AUC (0-∞)] of Tirzepatide113000 nanograms*hours per milliliter(ng*hr/mL)Geometric Coefficient of Variation 19
5 mg Tirzepatide SC (Solution)-Part APharmacokinetics (PK) Part A: Area Under the Concentration Versus Time Curve [AUC (0-∞)] of Tirzepatide109000 nanograms*hours per milliliter(ng*hr/mL)Geometric Coefficient of Variation 17
Primary

PK Part A: Maximum Observed Drug Concentration (Cmax) of Tirzepatide

PK Part A: Maximum observed plasma drug concentration (Cmax) of tirzepatide.

Time frame: Part A: Predose, 8, 12, 24, 48, 72, 96, 120, 144, 168, 336, 480 and 816-864 hours postdose

Population: All randomized participants from Part A group, who received at least one dose of study drug and had evaluable PK data.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
5 mg Tirzepatide SC (Lyophilized)-Part APK Part A: Maximum Observed Drug Concentration (Cmax) of Tirzepatide524 nanograms per milliliter (ng/mL)Geometric Coefficient of Variation 27
5 mg Tirzepatide SC (Solution)-Part APK Part A: Maximum Observed Drug Concentration (Cmax) of Tirzepatide575 nanograms per milliliter (ng/mL)Geometric Coefficient of Variation 22
Primary

PK Part B: Area Under the Concentration Versus Time Curve [AUC (0-∞)] of Tirzepatide

PK Part B: Area under the concentration versus time curve \[AUC (0-∞)\] of tirzepatide.

Time frame: Part B: Predose, 0.08 hours (h), 0.16h, 0.5h, 1h, 2h, 4h, 8h, 12h, 24h, 36h, 48h, 72h, 96h, 120h, 144h, 168h, 336h, 816h-864h and >=70 days post dose

Population: All randomized participants from Part B group, who received at least one dose of study drug and had evaluable PK data.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
5 mg Tirzepatide SC (Lyophilized)-Part APK Part B: Area Under the Concentration Versus Time Curve [AUC (0-∞)] of Tirzepatide6680 ng*hr/mLGeometric Coefficient of Variation 26
Secondary

PK Part C: Area Under the Concentration Versus Time Curve [AUC (0-τ)] of Tirzepatide

PK Part C: Area under the concentration versus time curve during one dosing interval (168 hours) \[AUC (0-τ)\] of tirzepatide.

Time frame: Part C: Predose, 8 hours (h) (day (D)1), 24h (D2), 48h (D3),72h (D4), predose (D8), predose (D15), 8h (D15), 24h (D16), 48h (D17), 72h (D18), predose (D22), 8h (D22), 24h (D23), 48h (D24), 72h (D25), D57 and >= D96 postdose

Population: All randomized participants from Part C group, who received at least one dose of study drug and had evaluable PK data. As per planned analysis, for 10 mg Tirzepatide SC-Part C arm, no PK samples were collected at 168 hour post dose (after the fourth dose. i.e. following dose at Week 4). Hence, no data was collected to calculate AUC (0-τ) for 10 mg Tirzepatide SC-Part C arm.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
5 mg Tirzepatide SC (Lyophilized)-Part APK Part C: Area Under the Concentration Versus Time Curve [AUC (0-τ)] of Tirzepatide68900 ng*hr/mLGeometric Coefficient of Variation 19
5 mg Tirzepatide SC (Solution)-Part APK Part C: Area Under the Concentration Versus Time Curve [AUC (0-τ)] of Tirzepatide149000 ng*hr/mLGeometric Coefficient of Variation 26
Secondary

PK Part C: Maximum Observed Drug Concentration (Cmax) of Tirzepatide

PK Part C: Maximum observed plasma drug concentration (Cmax) of tirzepatide.

Time frame: Part C: Predose, 8 hours (h) (day (D)1), 24h (D2), 48h (D3),72h (D4), predose (D8), predose (D15), 8h (D15), 24h (D16), 48h (D17), 72h (D18), predose (D22), 8h (D22), 24h (D23), 48h (D24), 72h (D25), D57 and >= D96 postdose

Population: All randomized participants participants from Part C group, who received at least one dose of study drug and had evaluable PK data.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
5 mg Tirzepatide SC (Lyophilized)-Part APK Part C: Maximum Observed Drug Concentration (Cmax) of Tirzepatide663 ng/mLGeometric Coefficient of Variation 23
5 mg Tirzepatide SC (Solution)-Part APK Part C: Maximum Observed Drug Concentration (Cmax) of Tirzepatide1270 ng/mLGeometric Coefficient of Variation 24
10 mg Tirzepatide SC-Part CPK Part C: Maximum Observed Drug Concentration (Cmax) of Tirzepatide1900 ng/mLGeometric Coefficient of Variation 24
Secondary

PK Part D: Area Under the Concentration Versus Time Curve [AUC (0-∞)] of Tirzepatide

PK Part D: Area under the concentration versus time curve \[AUC (0-∞)\] of tirzepatide.

Time frame: Part D: Predose, 0.08 hours (h), 0.16h, 0.5h, 1h, 2h, 4h, 8h, 12h, 24h, 36h, 48h, 72h, 96h, 120h, 144h, 168h, 336h, 816-864h and >= 70 days postdose

Population: All randomized participants from Part D group, who received at least one dose of study drug and had evaluable PK data.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
5 mg Tirzepatide SC (Lyophilized)-Part APK Part D: Area Under the Concentration Versus Time Curve [AUC (0-∞)] of Tirzepatide14000 ng*hr/mLGeometric Coefficient of Variation 16

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