- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02022124
Open Label Placebo in the Treatment of Low Back Pain
January 21, 2016 updated by: Claudia Carvalho, Hospital de Egas Moniz
Patients will be randomized to receive open-label (honestly described placebo) immediately at baseline or be eligible to receive the open-label treatment three weeks after the baseline measurements.
Therefore all patients will be eligible to receive open-label placebo treatment for their chronic low back pain during the course of the study.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
Chronic low back pain (cLBP) is a debilitating and costly condition that affects 1.2 million Portuguese with an estimated cost in the United Stated of $50 billion.
Randomized controlled trials has shown that placebo interventions can dramatically reduce chronic low back pain and its associated disability.
Generally, it is assumed that response to placebo requires concealment or deception, which presents a dilemma to the clinician.
In clinical practice, how can patients benefit from an available, effective and potentially cost-effective intervention without being deceived?
This study seeks to determine ethically acceptable open-label placebo treatment (with full informed consent) can lead to meaningful benefits.
The primary study will involve 80 patients with cLBP who will be randomly assigned to a three-week course of either non-deceptive open-label placebo pills in the context of a persuasive rationale + treatment as usual or to be continued on their treatment-as-usual.
Primary outcome measures will be pain intensity and symptom bothersomeness on the previous week.
Additionally, the study will investigate a possible association between the genetic variation of the catechol-O-methyltransferase (COMT polymorphisms) with the hypothesized observed placebo effect on cLBP patients.
Participants will be followed for 3 weeks with a mid-point (11 days) visit.
Patients who receive only usual care for the first three weeks will be eligible to elect a three week course of treatment with open-label placebo after which they will be assessed.
This study has been submitted and approved by the following review board: Comissão de Ética do Centro Hospitalar de Lisboa Ocidental (Lisbon West Hospitals Centre's Ethical Committee) Institutional Review Board.
Study Type
Interventional
Enrollment (Actual)
83
Phase
- Phase 2
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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-
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Lisbon, Portugal, 1349-019
- Hospital de Egas Moniz
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Male or female
- 18 years or older
- Low back pain complaints for a min. of 3 months
Exclusion Criteria:
- use of strong opioid analgesic and/or anticonvulsant medication;
- specific causes of back pain namely cancer, fractures and infections;
- complicated back problems (e.g. prior back surgery);
- conditions making treatment difficult (e.g. paralysis, psychoses);
- conditions that might confound treatment effects or interpretation of results (e.g. severe fibromyalgia, rheumatoid arthritis);
- concurrent care from other providers;
- conditions that affect safety of patient (e.g. pregnancy);
- concurrent medical legal issues.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: microcrystalline cellulose (open-label inert substance)
3-week course of non-deceptive placebo using placebo pills plus the usual regime that the patients had been prescribed at the time of intake.
|
The intervention will be an inert substance, microcrystalline cellulose in a capsule.
Participants will take two capsules daily.
|
No Intervention: Usual care treatment
This arm will entail a 3-week course of the stable treatment the patient is following at time of intake.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
pain intensity
Time Frame: previous week
|
assessed by an 11-point Numeric Rating Scale (NRS)
|
previous week
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Claudia Carvalho, PhD, ISPA - Instituto Universitario de Ciencias Psicologicas, Sociais e da Vida
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
November 1, 2013
Primary Completion (Actual)
December 1, 2015
Study Completion (Actual)
December 1, 2015
Study Registration Dates
First Submitted
November 21, 2013
First Submitted That Met QC Criteria
December 20, 2013
First Posted (Estimate)
December 27, 2013
Study Record Updates
Last Update Posted (Estimate)
January 22, 2016
Last Update Submitted That Met QC Criteria
January 21, 2016
Last Verified
January 1, 2016
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 88/CES-2013
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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