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NCT03718403 · ClinicalTrials.gov registry record · Phase 4
Effect of Theophylline in Pseudohypoparathyroidism
A Phase 4 study of PHP Ia and PHP IB, sponsored by Massachusetts General Hospital.
- Recruiting
- Registry status
- Phase 4
- Development phase
- 100
- Enrollment target
- 1
- Study location
NCT03718403: Recruiting Phase 4 study of PHP Ia and PHP IB, sponsored by Massachusetts General Hospital.
NCT03718403 is a Phase 4 study of PHP Ia and PHP IB that is actively recruiting participants, run by Massachusetts General Hospital. The registered enrollment target is 100 participants, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (81% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03718403, a Phase 4 study of PHP Ia and PHP IB, is actively recruiting participants, sponsored by Massachusetts General Hospital.
- RECRUITING
- Registry status
- Phase 4
- Development phase
- 100 participants
- Enrollment target
- 1
- Study location
Study Summary
The study evaluates the effect of theophylline in 100 subjects with Pseudohypoparathyroidism.
Primary Outcome
Change in Bone age ( in years and months) before and after theophylline administration for 52 weeks
Interventions
- DRUG Theophylline
Study Locations (1)
Massachusetts
- Massachusetts General Hospital - Boston
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 100 participants |
| Start Date | 2019-11-11 |
| Est. Completion | 2032-04-10 |
| Phase | Phase 4 |
What NCT03718403 shows while recruiting
NCT03718403 is an interventional study that assigns participants to a tested intervention. The registered 100 participants enrollment target is mid-sized for trials with a published cap, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (81% lower).
The record links to 3 conditions, with PHP Ia appearing as the primary indexed condition, and to 1 intervention - of which Theophylline is the first listed.
NCT03718403 reports a single indexed study location in Massachusetts.
Frequently Asked Questions
What is clinical trial NCT03718403 about?
NCT03718403 is a clinical study titled "Effect of Theophylline in Pseudohypoparathyroidism". The study evaluates the effect of theophylline in 100 subjects with Pseudohypoparathyroidism.
What is the current status of trial NCT03718403?
This trial is currently recruiting. It is a Phase 4 study. The enrollment target is 100 participants. The study started on 2019-11-11. Estimated completion is 2032-04-10.
What conditions does trial NCT03718403 study?
This clinical trial studies the following conditions: PHP Ia, PHP IB, Php1C.
What interventions are being tested in trial NCT03718403?
The interventions under investigation include: Theophylline (DRUG).
Who is sponsoring clinical trial NCT03718403?
This trial is sponsored by Massachusetts General Hospital, which has 2,032 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT03718403 being conducted?
This trial has 1 study location across Massachusetts. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03718403's enrollment target sits among peer trials
100 770th of 2000 higher than 1,149 of 2,000 other Phase 4 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 4 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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