Could a blood pressure drug ease pain from opioids?
NCT ID NCT01681264
First seen Jun 27, 2026 · Last updated Jul 31, 2026 · Updated 1 time
Summary
This study looked at whether adding guanfacine (a blood pressure medicine) to morphine could reduce pain sensitivity and tolerance in people with chronic neck or back pain. The study planned to enroll 137 adults who had not taken opioids recently. However, the study was terminated early, so results are limited.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Center for Translational Pain Research
Boston, Massachusetts, 02114, United States
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