A Study to Learn How Different Injector Pens Affect the Study Medicine Called Genotropin (Somatropin) Delivery and Taken up Into the Blood in Healthy Adults
← catalyst calendarSponsored by Pfizer (industry) · PFE — their whole pipeline →.
Phase
Phase 1
Status
Completed
Study type
Interventional
Design
Randomized · None · Basic science
Enrollment
27actual
Sites
1
Country
Belgium
Every value on this page is a field the sponsor filed with ClinicalTrials.gov, reproduced. Dates are their own estimates, revised as a study runs, unless the registry marks them actual. sources →
Source: ClinicalTrials.gov, retrieved 2026-08-19
Dates
each axis at the precision it was filed, with the registry's own basis| Date | Filed | Basis | What it is |
|---|---|---|---|
| Start | 2026-04-22 | actual | When the study began enrolling |
| Primary completion | 2026-06-25 | actual | The date the last participant is measured for the primary outcome — the readout window |
| Study completion | 2026-07-24 | actual | The whole study's end, after follow-up |
| First posted | 2026-04-21 | actual | When this record first appeared on the registry |
| Results posted | — | When the sponsor posted results to the registry | |
| Record updated | 2026-08-10 | actual | The sponsor's own last edit to this record — every projection above is as current as this date |
What it studies
Condition
- Healthy
Interventions
- Device: Marketed Genotropin Pen 12
- Device: New Genotropin Injector Pen
- Drug: Genotropin 4mg — also filed as Somatropin
Primary outcomes
what the primary-completion date above is the date OFArea Under the Concentration-time Curve From Time Zero Extrapolated to Infinity (AUCinf) of Somatropin
measured At pre-dose -24, -18, -12, -8, 0 and 1, 2, 3, 4, 6, 8, 10, 12, 16 and 24 hours post-dose on day 1 of each period
Maximum Observed Plasma Concentration (Cmax) for Somatropin
measured At pre-dose -24, -18, -12, -8, 0 and 1, 2, 3, 4, 6, 8, 10, 12, 16 and 24 hours post-dose on day 1 of each period
Permalink · PFE's whole pipeline · Catalyst calendar · Every registered study · What changed