Measurement of Substance P in Saliva of Low Back Pain Patients
TerminatedNot applicableNCT00735735
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This study has no listed site in Canada in this snapshot. It is included as part of the worldwide chronic pain corpus.
Brief summary (from the registry)
The purpose of this study is to compare the levels of Substance P in saliva, in patients with severe chronic low back pain and in subjects without it. In addition, to explore a possible cutoff point, in order to define normal and pathological levels of Substance P in saliva. The ultimate objective would be to design a measurement method for use in routine clinical practice.
Study details
- Official title
- Study of the Measurement of Substance P in the Saliva of Patients With Low Back Pain
- Conditions
- Interventions
- Other: The taking of a saliva sample from each subject.
- Sponsor
- Kovacs Foundation
- Start date
- 2009-02
- Primary completion
- 2012-01
- Sex
- All
- Age range
- from 18 Years to 80 Years
- Healthy volunteers
- true
- Results posted
- No results posted in this snapshot
- Countries
- Spain
- Total sites listed
- 1
Eligibility criteria
Show eligibility criteria (verbatim from the registry)
Inclusion Criteria: * Patients referred to the Kovacs Back Pain Unit in Palma de Mallorca for chronic low back pain * A pain level of 6 or greater on the PI-NRS scale (0=no pain, 10= worst pain possible) * Seen at the Unit between 9 and 13 hours (due to the circadian rhythm of Substance P in saliva and to avoid great variability in the results) For healthy subjects: * Volunteers with no pain (anywhere) * That in the past year have had no more than 40 days with pain, and no episode of more than 7 days of continuous pain. Exclusion Criteria: * Subjects with pain that is additional to or different from chronic low back pain
Source: ClinicalTrials.gov (US National Library of Medicine), snapshot October 2026. Check the registry for current recruiting status. Record: https://clinicaltrials.gov/study/NCT00735735