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The Effect of Semaglutide on Pituitary Function

The Effect of Semaglutide on Pituitary Function

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04865744
Enrollment
10
Registered
2021-04-29
Start date
2021-05-19
Completion date
2021-09-30
Last updated
2023-02-22

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

Conditions

Healthy

Brief summary

The primary aim of the study is to describe the effect of a single oral dose of semaglutide 7 mg on growth hormone secretion.

Detailed description

The randomized blinded placebo-controlled clinical trial is conducted on 10 healthy volunteers. 5 study subjects receive once 7 mg of oral semaglutide and once placebo. 5 study subjects receive once 14 mg of oral semaglutide and once placebo. The study group and order of administration of study medication are decided on randomization. The placebo and oral semaglutide are administered at least 4 weeks apart. Blood samples are taken before and during 4 hours after the study medication administration (at 60, 90, 120, 150, 180, and 240 minutes after study medication administration). The primary endpoint is the peak value of growth hormone measured during the 4 hours after study medication administration.

Interventions

DRUGSemaglutide 7 MG Oral Tablet

Semaglutide 7 mg oral tablet taken after an overnight fast with up to 120 ml of water.

DRUGPlacebo

Placebo tablet is taken after an overnight fast with up to120 ml of water.

DRUGSemaglutide 14 MG Oral Tablet

Semaglutide 14 mg oral tablet taken after an overnight fast with up to 120 ml water.

Sponsors

University of Tartu
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
DIAGNOSTIC
Masking
DOUBLE (Subject, Caregiver)

Intervention model description

Blinded Randomised Single-group Crossover

Eligibility

Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

* Age 18-50 years * The body weight \>65 kg

Exclusion criteria

* presence of chronic illness * the daily use of medications * pregnancy * lactation.

Design outcomes

Primary

MeasureTime frameDescription
Growth hormone peak60, 90, 120, 150, 180 and 240 minutes after study medication administrationMaximum concentration measured after study medication administration.

Secondary

MeasureTime frameDescription
Aldosterone peak60, 90, 120, 150, 180 and 240 minutes after study medication administrationMaximum concentration measured after study medication administration.
Glucose nadir60, 90, 120, 150, 180 and 240 minutes after study medication administrationLowest glucose concentration measured after study medication administration
C-peptide peak60, 90, 120, 150, 180 and 240 minutes after study medication administrationMaximum concentration measured after study medication administration.
Copeptin peak60, 90, 120, 150, 180 and 240 minutes after study medication administrationMaximum concentration measured after study medication administration
Cortisol peak60, 90, 120, 150, 180 and 240 minutes after study medication administrationMaximum concentration measured after study medication administration.
Adrenocorticotropin (ACTH) peak60, 90, 120, 150, 180 and 240 minutes after study medication administrationMaximum concentration measured after study medication administration.

Other

MeasureTime frameDescription
Blood pressure60, 90, 120, 150, 180 and 240 minutes after study medication administrationThe change in blood pressure compared to baseline
Nausea60, 90, 120, 150, 180 and 240 minutes after study medication administrationThe intensity of nausea on a 0-10 points visual analog scale, where 0 indicates no nausea and 10 worst imaginable nausea.
Heart rate60, 90, 120, 150, 180 and 240 minutes after study medication administrationThe change in heart rate compared to baseline

Countries

Estonia

Outcome results

None listed

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