Clinical trialNCT04121780UnknownPhase 2Interventional

Growth Hormone Replacement Therapy for Retried Professional Football Players

SponsorCenter for Neurological StudiesEnrollment42Anterior Pituitary Hyposecretion SyndromeConcussion, BrainGrowth Hormone DeficiencyHypopituitarismSport InjuryTBI (Traumatic Brain Injury)

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

This is a randomized, double-blind, placebo-controlled, parallel-group trial with an open-label extension to evaluate the efficacy of growth hormone (GH) on cognitive functions of retired professional football players with growth hormone deficiency (GHD).

clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a FindMyKOL profile link to it; the rest are shown as registered.

Randall R Benson, MD
Vice President and Medical Director
Principal Investigator
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

1 registered facility, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

Center for Neurolgoical Studies (cns)
Dearborn, Michigan, United States
Recruiting

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

Somatropin →

Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 8 Oct 2019
Primary completion: 31 Mar 2025
Completion: 30 Sept 2026
Last update posted: 8 Feb 2023
Registered enrollment: 42
Registry id: NCT04121780

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 11 Nov 2026. Registry facts are shown as registered by the study sponsor; FindMyKOL does not interpret them.