Pain Responses in Patients on Long-Term Opioid Therapy for Chronic Pain
Public ClinicalTrials.gov record NCT00656942. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The MGH Center for Translational Pain Research is seeking patients with chronic pain for a research study. The study is looking at the effect of opioid (narcotic) pain medicines on pain sensation, threshold and tolerance.
Study identification
- NCT ID
- NCT00656942
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 419 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 65 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jun 30, 2006
- Primary completion
- Sep 30, 2013
- Completion
- Nov 30, 2018
- Last update posted
- Jul 21, 2020
2006 – 2018
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| MGH Center for Translational Pain Center | Boston | Massachusetts | 02114 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00656942, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jul 21, 2020 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00656942 live on ClinicalTrials.gov.