Pain Clinical Trial
— EXPECTOfficial title:
Association of Expectations and Pain Relief After Diagnostic Nerve Blocks (EXPECT) - A Prospective Cohort Study
Expectations are a major driver of changes in health-related outcomes and are related to reduced pain after medical treatment. However, no studies have specifically addressed the role of expectations in connection with the success of interventional pain techniques and the specific effect of expectations on diagnostic and therapeutic procedures in this field. Further, there are no studies on prolonged pain reduction after diagnostic nerve blocks. This prospective cohort study will investigate patients' outcome-related expectations measured by validated questionnaires (i.a. the Expectation for Treatment Scale) before standardized diagnostic nerve blocks (i.e. lumbar medial branch and greater occipital nerve blocks) and their association with immediate pain reduction, calculated using a numeric rating scale (NRS) before and after the block. Secondary outcomes are specificity of pain relief duration in relation to the local anesthetic, changes in pain-related interference, quality of life and function, as well as patients' global impression of change after one week in order to assess possible therapeutic effects of the nerve blocks themselves. The sample size of 110 patients is based on a power of 80% and a significance level of 0.05. Additional endpoints will be evaluated using mixed-effects linear regression, non-linear relationships between expectation and endpoints will be modelled using fractional polynomials. This research will quantify the effect of patients' expectations on pain reduction after nerve blocks, extend our knowledge which patients are likely to respond to interventional pain treatments and under which circumstances nerve blocks may exhibit therapeutic effects.
Status | Recruiting |
Enrollment | 110 |
Est. completion date | March 1, 2024 |
Est. primary completion date | February 1, 2024 |
Accepts healthy volunteers | |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - referral to our pain clinic - interventions: Lumbar medial branch block or greater occipital nerve block, both with lidocaine 2% Exclusion Criteria: - Psychiatric co-morbidities other than depression - Inability to express pain scores on a numeric rating scale - Refusal of informed consent - Insufficient knowledge of German, French or English |
Country | Name | City | State |
---|---|---|---|
Switzerland | Inselspital, Bern University Hospital | Bern |
Lead Sponsor | Collaborator |
---|---|
Insel Gruppe AG, University Hospital Bern |
Switzerland,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Change in pain intensity | Change in pain intensity directly after the diagnostic nerve block, calculated on an 11-point numeric rating scale (NRS 0-10, 0=no pain; 10=unbearable pain) before and 30 minutes after the nerve block. | 30 minutes | |
Secondary | Change in pain intensity (longterm) | Change in pain intensity on the same day and during one week after diagnostic block, calculated on an 11-point numeric rating scale (NRS 0-10, 0=no pain; 10=unbearable pain). | 1 week | |
Secondary | Specificity of local anesthetic | Specificity of local anesthetic within one day after diagnostic block (duration of pain relief corresponds to substance: yes/no) | 1 day | |
Secondary | Pain-related disability after 1 week | Pain-related disability using the Brief Pain Inventory: Pain severities for worst, least, average and actual pain are calculated on an 11-point numeric rating scale (NRS 0-10, 0=no pain; 10=unbearable pain). The 7 interference items (sleep disturbance, general activity, mood, work, relations with others, walking, and enjoyment of life) are assessed on a 0-10 scale, with 0 being "did not interfere" and 10 being "interfered completely. | 1 week | |
Secondary | Patient Global Impression of Change (PGIC) after 1 week | Patient Global Impression of Change (PGIC) one week after diagnostic block with the items "pain intensity", "quality of life" and "ability to function", measured on a 7-point scale (1="very much better", 7="very much worse") | 1 week |
Status | Clinical Trial | Phase | |
---|---|---|---|
Active, not recruiting |
NCT05559255 -
Changes in Pain, Spasticity, and Quality of Life After Use of Counterstrain Treatment in Individuals With SCI
|
N/A | |
Terminated |
NCT04356352 -
Lidocaine, Esmolol, or Placebo to Relieve IV Propofol Pain
|
Phase 2/Phase 3 | |
Completed |
NCT04748367 -
Leveraging on Immersive Virtual Reality to Reduce Pain and Anxiety in Children During Immunization in Primary Care
|
N/A | |
Completed |
NCT05057988 -
Virtual Empowered Relief for Chronic Pain
|
N/A | |
Completed |
NCT04466111 -
Observational, Post Market Study in Treating Chronic Upper Extremity Limb Pain
|
||
Recruiting |
NCT06206252 -
Can Medical Cannabis Affect Opioid Use?
|
||
Completed |
NCT05868122 -
A Study to Evaluate a Fixed Combination of Acetaminophen/Naproxen Sodium in Acute Postoperative Pain Following Bunionectomy
|
Phase 3 | |
Active, not recruiting |
NCT05006976 -
A Naturalistic Trial of Nudging Clinicians in the Norwegian Sickness Absence Clinic. The NSAC Nudge Study
|
N/A | |
Completed |
NCT03273114 -
Cognitive Functional Therapy (CFT) Compared With Core Training Exercise and Manual Therapy (CORE-MT) in Patients With Chronic Low Back Pain
|
N/A | |
Enrolling by invitation |
NCT06087432 -
Is PNF Application Effective on Temporomandibular Dysfunction
|
N/A | |
Completed |
NCT05508594 -
Efficacy and Pharmacokinetic-Pharmacodynamic Relationship of Intranasally Administered Sufentanil, Ketamine, and CT001
|
Phase 2/Phase 3 | |
Recruiting |
NCT03646955 -
Partial Breast Versus no Irradiation for Women With Early Breast Cancer
|
N/A | |
Active, not recruiting |
NCT03472300 -
Prevalence of Self-disclosed Knee Trouble and Use of Treatments Among Elderly Individuals
|
||
Completed |
NCT03678168 -
A Comparison Between Conventional Throat Packs and Pharyngeal Placement of Tampons in Rhinology Surgeries
|
N/A | |
Completed |
NCT03286543 -
Electrical Stimulation for the Treatment of Pain Following Total Knee Arthroplasty Using the SPRINT Beta System
|
N/A | |
Completed |
NCT03931772 -
Online Automated Self-Hypnosis Program
|
N/A | |
Completed |
NCT02913027 -
Can We Improve the Comfort of Pelvic Exams?
|
N/A | |
Terminated |
NCT02181387 -
Acetaminophen Use in Labor - Does Use of Acetaminophen Reduce Neuraxial Analgesic Drug Requirement During Labor?
|
Phase 4 | |
Recruiting |
NCT06032559 -
Implementation and Effectiveness of Mindfulness Oriented Recovery Enhancement as an Adjunct to Methadone Treatment
|
Phase 3 | |
Active, not recruiting |
NCT03613155 -
Assessment of Anxiety in Patients Treated by SMUR Toulouse and Receiving MEOPA as Part of Their Care
|