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NCT00256347 · ClinicalTrials.gov registry record · NA
Analgesic Tolerance to Repeated Doses of Subcutaneous Morphine
A NA study, sponsored by University of California, San Francisco.
- Completed
- Registry status
- NA
- Development phase
- 30
- Enrollment target
NCT00256347: Completed NA study, sponsored by University of California, San Francisco.
NCT00256347 is a NA study that has completed, run by University of California, San Francisco. The registered enrollment target is 30 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00256347, a NA study, has completed, sponsored by University of California, San Francisco.
- COMPLETED
- Registry status
- NA
- Development phase
- 30 participants
- Enrollment target
Study Summary
30 healthy volunteers will be enrolled in this 6-session study. The first visit will be a screening/orientation session. The next 5 visits will be (full day) outpatient sessions taking place Monday through Friday during one week. All full day visits will be drug administration sessions with subjects randomized to one of two groups. The primary purpose is to investigate the time course of development of analgesic tolerance (loss of pain relieving effect) to morphine on experimentally produced skin tenderness in healthy volunteers.
Interventions
- DRUG intramuscular injections of morphine
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 30 participants |
| Start Date | 2005-03 |
| Est. Completion | 2006-12 |
| Phase | NA |
What the finished NCT00256347 record still lists
NCT00256347 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 30 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower).
The record links to 0 conditions, and to 1 intervention - of which intramuscular injections of morphine is the first listed.
NCT00256347 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00256347 about?
NCT00256347 is a clinical study titled "Analgesic Tolerance to Repeated Doses of Subcutaneous Morphine". 30 healthy volunteers will be enrolled in this 6-session study. The first visit will be a screening/orientation session. The next 5 visits will be (full day) outpatient sessions taking place Monday through Friday during one week. All full day visits will be drug administration sessions with subjects...
What is the current status of trial NCT00256347?
This trial is currently completed. It is a NA study. The enrollment target is 30 participants. The study started on 2005-03. Estimated completion is 2006-12.
What interventions are being tested in trial NCT00256347?
The interventions under investigation include: intramuscular injections of morphine (DRUG).
Who is sponsoring clinical trial NCT00256347?
This trial is sponsored by University of California, San Francisco, which has 1,713 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00256347's enrollment target sits among peer trials
30 1593rd of 2000 higher than 299 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA 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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