CI

At a glance

ClinicalIndex Comparison Record
Phase 4Completed· 82 enrolled
Drug / intervention
Naproxen +2 moredrug
Likely dose
Naproxen 500mgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT02013427
NCT02013427Phase 4Completed

BRAIN MECHANISMS FOR CLINICAL PLACEBO IN CHRONIC PAIN: A Partially-Blind Randomized Clinical Trial of Placebo and Chronic Back Pain

Northwestern University·interventional·Posted Dec 17, 2013·Updated Mar 3, 2023

In Brief

A Phase 4 clinical trial evaluating Naproxen, Placebo, and 1 other intervention for Chronic Low Back Pain. Completed, enrolled 82 participants across 1 site.

Detailed Summary

This study is designed to examine brain properties for placebo response in chronic back pain patients. The investigators have preliminary data indicating that, in blinded clinical trial studies with neutral instructions regarding treatment, chronic back pain (CBP) patients can be subdivided into placebo responders and non-responders, and these differences are PREDICTABLE a priori, by brain activity. The results imply that CBP placebo may have clinical utility and that its properties can be studied by human brain imaging techniques. In Phase I of the study, the investigators seek to identify brain imaging parameters that predict the propensity for the placebo response in an independent CBP cohort. In Phase II, the investigators will evaluate the interaction between placebo response and medication treatment in individuals stratified as placebo responders versus non-responders. This research is designed to critically assess the neurobiology of placebo analgesia for chronic pain in a partially-blind clinical trial.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States

Timeline

Phase 4CompletedFinished
2014201520162017201820192020202120222023202420252026
First PostedDec 17, 2013
Enrollment StartOct 1, 2014
Primary CompletionMay 1, 2016
TodayJul 2, 2026
Enrollment to primary: 1.6 yearsPosted 12.5 years ago

Interventions

Naproxendrug

Take one 500mg naproxen capsule twice a day.

Placebodrug

Take one placebo capsule twice a day.

Omeprazoledrug

Take one 20mg omeprazole capsule twice a day.