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NCT05660265 · ClinicalTrials.gov registry record · Phase 1
A Study to Investigate the Safety, Tolerability, and Pharmacokinetics of Oral GSK4172239D Compared With Placebo in Sickle Cell Disease Participants Aged 18 to 50 Years
A Phase 1 study, sponsored by GlaxoSmithKline.
- Terminated
- Registry status
- Phase 1
- Development phase
- 11
- Enrollment target
NCT05660265: Clinical Trial Phase 1 study, sponsored by GlaxoSmithKline.
NCT05660265 is a Phase 1 study that was terminated before completion, run by GlaxoSmithKline. The registered enrollment target is 11 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (82% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT05660265, a Phase 1 study, was terminated before completion, sponsored by GlaxoSmithKline.
- TERMINATED
- Registry status
- Phase 1
- Development phase
- 11 participants
- Enrollment target
Study Summary
This will be a first time in human (FTIH) study in sickle cell diseases (SCD) participants. The FTIH study is planned to evaluate the safety, tolerability, and pharmacokinetics of GSK4172239D. The study will be composed of 3 periods for all participants (Screening, Treatment, and Follow up). Participants will be screened and, prior to first dose on Day 1, will be randomized to receive either GSK4172239D or placebo. GSK4172239D is a prodrug that is converted in vivo into GSK4106401. This study will be a single dose, dose-escalation study. The initial dosing for all cohorts will be staggered so that 2 participants will be dosed as sentinel participants. Provided there are no safety concerns in 48 hours (h), the remaining 6 participants scheduled for the cohort may be dosed. One selected cohort of participants will also receive an additional single dose of GSK4172239D (or matching placebo) under fed (high calorie and high fat) conditions after a washout period of a minimum of 20 days or 5 half-lives, whichever is longer, designated as the Food Effect Cohort.
Interventions
- OTHER Placebo
- DRUG GSK4172239D
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 11 participants |
| Start Date | 2023-08-26 |
| Est. Completion | 2025-09-22 |
| Phase | Phase 1 |
Why NCT05660265 stopped before completion
NCT05660265 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 11 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (82% lower).
The record links to 0 conditions, and to 2 interventions - of which Placebo is the first listed.
NCT05660265 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT05660265 about?
NCT05660265 is a clinical study titled "A Study to Investigate the Safety, Tolerability, and Pharmacokinetics of Oral GSK4172239D Compared With Placebo in Sickle Cell Disease Participants Aged 18 to 50 Years". This will be a first time in human (FTIH) study in sickle cell diseases (SCD) participants. The FTIH study is planned to evaluate the safety, tolerability, and pharmacokinetics of GSK4172239D. The study will be composed of 3 periods for all participants (Screening, Treatment, and Follow up). Partic...
What is the current status of trial NCT05660265?
This trial is currently terminated. It is a Phase 1 study. The enrollment target is 11 participants. The study started on 2023-08-26. Estimated completion is 2025-09-22.
What interventions are being tested in trial NCT05660265?
The interventions under investigation include: Placebo (OTHER), GSK4172239D (DRUG).
Who is sponsoring clinical trial NCT05660265?
This trial is sponsored by GlaxoSmithKline, which has 1,345 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT05660265's enrollment target sits among peer trials
11 1911th of 2000 higher than 88 of 2,000 other Phase 1 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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