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NCT04172987

A Study of the Effect of Tirzepatide on How the Body Handles Birth Control Pills in Healthy Female Participants

Completed Phase 1 Results posted Last updated 27 March 2023
What this trial tests

Phase 1 trial testing Tirzepatide in Healthy in 40 participants. Completed in 9 February 2021.

Timeline
26 February 2020
Primary endpoint
9 February 2021
9 February 2021

Quick facts

Lead sponsorEli Lilly and Company
PhasePhase 1
StatusCompleted
Study typeINTERVENTIONAL
Allocationnon randomized
Designsingle group
Maskingnone
Primary purposebasic science
Enrollment40
Start date26 February 2020
Primary completion9 February 2021
Estimated completion9 February 2021
Sites1 location across United States

Drugs / interventions tested

Conditions studied

Sponsor

Eli Lilly and Company — full company profile →

Who can join

Adults 18 to 45, female only, with Healthy. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Period 1 and Period 2, Pharmacokinetics (PK): Area Under the Concentration Versus Time Curve (AUC) Within 1 Dosing Interval (AUC[0-tau]) of Ethinylestradiol (EE) Primary · Period 1 and Period 2: Predose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 48 hours postdose

Pharmacokinetics (PK): Area Under the Concentration Versus Time Curve (AUC) Within 1 Dosing Interval (AUC\[0-tau\]) of Ethinylestradiol (EE)

GroupValue95% CI
OC (0.035 mg EE and 0.25 mg NGM)966± 40
OC (0.035 mg EE and 0.25 mg NGM) + 5 mg Tirzepatide811± 41
Period 1 and Period 2, PK: Maximum Concentration (Cmax) of EE Primary · Predose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 48 hours postdose

PK: Cmax of EE

GroupValue95% CI
OC (0.035 mg EE and 0.25 mg NGM)119± 33
OC (0.035 mg EE and 0.25 mg NGM) + 5 mg Tirzepatide49.6± 63
Period 1 and Period 2, PK: Area Under the Concentration Versus Time Curve (AUC) Within 1 Dosing Interval (AUC[0-tau]) of Norelgestromin (NGMN) Primary · Predose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 48 hours postdose

PK: Area Under the Concentration Versus Time Curve (AUC) Within 1 Dosing Interval (AUC\[0-tau\]) of Norelgestromin (NGMN)

GroupValue95% CI
OC (0.035 mg EE and 0.25 mg NGM)19900± 27
OC (0.035 mg EE and 0.25 mg NGM) + 5 mg Tirzepatide14600± 67
Period 1 and Period 2, PK: Cmax of Norelgestromin (NGMN) Primary · Predose, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 48 hours postdose

PK: Cmax of Norelgestromin (NGMN)

GroupValue95% CI
OC (0.035 mg EE and 0.25 mg NGM)2070± 27
OC (0.035 mg EE and 0.25 mg NGM) + 5 mg Tirzepatide892± 74

Adverse events — posted to ClinicalTrials.gov

Time frame: Lead-In Up To 15 Weeks. Reporting threshold: 5%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

Lead-in: OC ( 0.035 mg EE and 0.25 mg NGM)
Serious: 0/40 (0%)
Deaths: 0/40
Period 1: OC ( 0.035 mg EE and 0.25 mg NGM)
Serious: 0/38 (0%)
Deaths: 0/38
Period 2: OC ( 0.035 mg EE and 0.25 mg NGM) + 5 mg Tirzepatide
Serious: 0/28 (0%)
Deaths: 0/28
Other adverse events (15 terms — click to expand)

ReactionSystemLead-in: OC ( 0.035 mg EE …Period 1: OC ( 0.035 mg EE…Period 2: OC ( 0.035 mg EE…
NauseaGastrointestinal disorders
Decreased appetiteMetabolism and nutrition disorders
VomitingGastrointestinal disorders
HeadacheNervous system disorders
Abdominal discomfortGastrointestinal disorders
Abdominal painGastrointestinal disorders
Abdominal distensionGastrointestinal disorders
ChillsGeneral disorders
PainGeneral disorders
Corona virus infectionInfections and infestations
Back painMusculoskeletal and connective tissue disorders
SomnolenceNervous system disorders
DysmenorrhoeaReproductive system and breast disorders
MenorrhagiaReproductive system and breast disorders
Vaginal haemorrhageReproductive system and breast disorders

Data from ClinicalTrials.gov NCT04172987 adverse events section.

Sponsor's own description

The purpose of this study is to look at how the body processes the commonly prescribed birth control pill, ethinylestradiol + norgestimate (EE/NGM), in healthy female participants and the effect of tirzepatide on how EE/NGM is processed by the body. Information about any side effects that may occur will also be collected. Screening is required within 28 days prior to the start of the study. For each participant, the study will last about 20 weeks, including screening.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

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Other trials of Tirzepatide

Trials testing the same drug.

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Trials by the same sponsor.

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Data sources for this page

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04172987.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing