N/A
N=79
Exploratory Efficacy Study of Guaifenesin in Upper Back Pain
Upper Back Pain
Bottom Line
View on ClinicalTrials.gov: NCT01562548 ↗Enrolled (actual)
79
Serious AEs
0.0%
Results posted
Jun 2014
Primary outcome: Primary: Mean Change From Baseline of Both AM and PM Spasm Assessment Scores — 1.66; 1.87; 1.91; 1.54 Score on a Scale — p=0.68
Study Design & Population
- Study type
- Interventional
- Phase
- N/A
- Interventions
- Guaifenesin (Drug); Placebo (Drug)
- Age
- Adult, Older Adult · 18+ yrs
- Sex
- All
- Sponsor
- GlaxoSmithKline
- Primary completion
- May 2013
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Mean Change From Baseline of Both AM and PM Spasm Assessment Scores |
1.66; 1.87; 1.91; 1.54 | 0.68 |
| SECONDARY Mean Change From Baseline of Both AM and PM NRS Muscle Stiffness Assessment Scores |
1.90; 2.09; 1.87; 1.77 | — |
| SECONDARY Mean Change From Baseline of Both AM and PM NRS Tension Assessment Scores |
1.74; 1.98; 1.97; 1.54 | — |
| SECONDARY Mean Change From Baseline of Both AM and PM NRS Pain Assessment Scores |
1.65; 2.41; 2.14; 1.41 | — |
| SECONDARY Mean Change From Baseline of Both AM and PM NRS Discomfort Assessment Scores |
1.95; 2.57; 2.33; 1.12 | — |
| SECONDARY Muscle Relaxation Scores |
1.80; 1.90; 1.85; 1.35; 1.86; 2.27 | — |
| SECONDARY Upper Back/Neck/Shoulder Pain Disability (Vernon-Mior) Index Scores |
3.88; 3.67; 3.25; 3.62; 2.72; 2.53 | — |
| SECONDARY Global Assessment of Treatment Helpfulness (GATH) |
1.48; 1.53; 1.63; 0.85; 1.56; 1.73 | — |
| SECONDARY Global Assessment of Sleep Disturbance (GASD) |
8; 8; 10; 7; 1; 0 | — |
| SECONDARY Global Assessment of Headache Frequency (GAHF) |
9; 9; 7; 4; 3; 0 | — |
| SECONDARY Global Assessment of Headache Intensity (GAHI) |
10; 9; 9; 4; 1; 0 | — |
Summary
Explore the clinical efficacy of 7-day treatment regimens of guaifenesin in order to investigate the evidence that guaifenesin is an effective treatment for upper back/neck/shoulder muscle spasm/stiffness and pain.
Eligibility Criteria
Inclusion Criteria
- Paticipant presents with a new episode of acute upper back/neck/shoulder pain and muscle spasm that:
- is at least 30 days from previous episode.
- has an onset occurred within 48 hours of Visit 1.
- has symptoms consistent with a clinical diagnosis as per the physical examination at Visit 1.
- has a subject-rated muscle spasm score and a pain score of at least 40 out of 100 on a 100mm VAS.
- Paticipant has a normal neurological examination.
Exclusion Criteria
- Medical history: a) Paticipant has a known or suspected intolerance or hypersensitivity to guaifenesin or methocarbamol (or closely related compounds) or any of their stated ingredients. b) Paticipant has history of upper back pain with active hypersensitive spots - trigger point in the muscles of upper back/neck/shoulder/maxillofacial regions. c) Paticipant has a current or recent history of liver and/or kidney disease, neck/back/shoulder injuries, spinal disc disease, myocardial infarction (<12 months from Visit 1) and osteoporosis. d) Subjects have history of other chronic pain e.g. headache, osteoarthritis, arthritis, lower back pain etc.
- Medications: a) Paticipant has used a muscle relaxant or narcotic within 2 weeks of Visit 1. b) Paticipant has used monoamine oxidase inhibitors or selegiline within 2 weeks of Visit 1 c) Currently using tricyclic antidepressants, lithium, anticoagulants, or tramadol.
- Paticipant is involved in a workers compensation case.
- Paticipant is unlikely to refrain from using analgesics, NSAIDs, and other muscle relaxants for the duration of the study, with the exception of cardioprotective doses of aspirin (i.e., ≤ 325 mg/day).
- Paticipant is unlikely to refrain from physical therapy, massage therapy, acupuncture, heat treatment, spas, etc for the duration of the study.
Data sourced from ClinicalTrials.gov (NCT01562548). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.