NCT03164161

Brief Summary

The purpose of this study is to evaluate the correlation between β-endorphin levels in blood plasma and saliva in healthy participants with different pain sensitivity and in those with acute pain in oral and maxillofacial region. Expected results

  • Relation between blood plasma and saliva β-endorphins levels
  • Differences of blood plasma β-endorphins levels in healthy participants with different pain sensitivity and in those with acute pain
  • Differences of saliva β-endorphins levels in healthy participants with different pain sensitivity and in those with acute pain
  • Objective method of patient's pain sensation evaluation
  • Correlation between patient's self-reported understanding of pain levels in oral surgery procedures, levels in saliva and blood plasma β-endorphins levels and sensitivity to cold test results Study protocol: Selection of participants
  • Evaluation of pain perception in oral surgery procedures by healthy adult participants.
  • Groups formation, according to the results from first stage, resulting in high and low pain rating participants groups.
  • Control group formation from patients with acute pain in oral and maxillofacial region Control rating of participants
  • Saliva samples will be collected by all further included participants by one selves participants with researchers supervision.
  • Blood samples will be collected from forearm veins by researcher. Evaluation of β-endorphins - laboratorial examination

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started May 2017

Shorter than P25 for not_applicable

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 29, 2016

Completed
7 months until next milestone

Study Start

First participant enrolled

May 1, 2017

Completed
22 days until next milestone

First Posted

Study publicly available on registry

May 23, 2017

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2017

Completed
Last Updated

May 23, 2017

Status Verified

May 1, 2017

Enrollment Period

7 months

First QC Date

September 29, 2016

Last Update Submit

May 22, 2017

Conditions

Keywords

Pain SensitivityMeasurementCold Pressorβ-endorphinssalivaoral surgery

Outcome Measures

Primary Outcomes (1)

  • Correlations between β-endorphins levels (pg/mL) and cold pressor test (min:s), pain perception (1-10 points) questionnaire results.

    Both, saliva and blood β-endorphins levels will be compared with cold pressor test results and pain perception in oral surgery test results. Blood β-endorphin levels will be used only as control measurement, focusing on saliva β-endorphin levels correlation.

    One year

Secondary Outcomes (4)

  • Differences between acute-pain group and healthy participants groups with different pain sensitivity levels

    One year

  • Correlation between saliva β-endorphins and blood plasma β-endorphins levels

    One day

  • Correlation between pain perception in oral surgery questionnaire and cold pressor test results

    One year

  • Pain perception in oral surgery questionnaire test - retest correlation

    One year

Study Arms (4)

Cold Pressor Test Results

ACTIVE COMPARATOR

Participants, enrolling the healthy participants high and low pain perception groups, will undergo cold pressor test. According to the results patients will be assigned according to time (min:s) until first pain felt (pain threshold) and time (min:s) until unbearable pain and test withdraw (pain tolerance). Also, pain ratings (1-10) at same points will be used as participants alignment tool.

Device: Cold pressor test

β-endorphins level in saliva

ACTIVE COMPARATOR

Participants will be sorted according to β-endorphin levels in saliva., therefore the β-endorphins evaluation in saliva intervention will be performed.

Other: β-endorphins evaluation in saliva

β-endorphin level in blood plasma

ACTIVE COMPARATOR

Participants will be sorted according to β-endorphin levels in blood plasma, therefore β-endorphins evaluation in blood plasma will be performed.

Other: β-endorphins evaluation in blood plasma

Pain perception rating

NO INTERVENTION

Healthy participants will be sorted in to groups: high and low pain perception groups, according to the results of questionnaires, containing various oral surgery procedures pain ranking.

Interventions

Described before.

Cold Pressor Test Results

Described before.

β-endorphins level in saliva

Described before.

β-endorphin level in blood plasma

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients without reported chronical or acute pain in non-acute-pain group
  • Patients with acute pain in oral and maxillofacial region with diagnosed cause of pain in acute-pain group
  • Patients older than 18 years

You may not qualify if:

  • Patients undertaking any pain relieving medicine, including non-steroid and opioid medicine
  • Patients with diagnosed endocrine system diseases
  • Patients with psychogenic diseases
  • Patients with pre-injected local anaesthetics
  • Patients with oncologic diseases
  • Patients with endocrine system diseases

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (27)

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    PMID: 21959662BACKGROUND
  • Kyle BN, McNeil DW, Weaver B, Wilson T. Recall of Dental Pain and Anxiety in a Cohort of Oral Surgery Patients. J Dent Res. 2016 Jun;95(6):629-34. doi: 10.1177/0022034516631977. Epub 2016 Feb 23.

    PMID: 26908629BACKGROUND
  • Randall CL, McNeil DW, Shaffer JR, Crout RJ, Weyant RJ, Marazita ML. Fear of Pain Mediates the Association between MC1R Genotype and Dental Fear. J Dent Res. 2016 Sep;95(10):1132-7. doi: 10.1177/0022034516661151.

    PMID: 27555332BACKGROUND
  • Klages U, Ulusoy O, Kianifard S, Wehrbein H. Dental trait anxiety and pain sensitivity as predictors of expected and experienced pain in stressful dental procedures. Eur J Oral Sci. 2004 Dec;112(6):477-83. doi: 10.1111/j.1600-0722.2004.00167.x.

    PMID: 15560829BACKGROUND
  • Astramskaite I, Poskevicius L, Juodzbalys G. Factors determining tooth extraction anxiety and fear in adult dental patients: a systematic review. Int J Oral Maxillofac Surg. 2016 Dec;45(12):1630-1643. doi: 10.1016/j.ijom.2016.06.019. Epub 2016 Jul 18.

    PMID: 27436789BACKGROUND
  • Duan G, Han C, Wang Q, Guo S, Zhang Y, Ying Y, Huang P, Zhang L, Macala L, Shah P, Zhang M, Li N, Dib-Hajj SD, Waxman SG, Zhang X. A SCN10A SNP biases human pain sensitivity. Mol Pain. 2016 Sep 2;12:1744806916666083. doi: 10.1177/1744806916666083. Print 2016.

    PMID: 27590072BACKGROUND
  • Basbaum AI, Bautista DM, Scherrer G, Julius D. Cellular and molecular mechanisms of pain. Cell. 2009 Oct 16;139(2):267-84. doi: 10.1016/j.cell.2009.09.028.

    PMID: 19837031BACKGROUND
  • National Research Council (US) Committee on Recognition and Alleviation of Pain in Laboratory Animals. Recognition and Alleviation of Pain in Laboratory Animals. Washington (DC): National Academies Press (US); 2009. Available from http://www.ncbi.nlm.nih.gov/books/NBK32658/

    PMID: 20662126BACKGROUND
  • Amit Z, Galina ZH. Stress-induced analgesia: adaptive pain suppression. Physiol Rev. 1986 Oct;66(4):1091-120. doi: 10.1152/physrev.1986.66.4.1091.

    PMID: 2876446BACKGROUND
  • Ahmad AH, Zakaria R. Pain in Times of Stress. Malays J Med Sci. 2015 Dec;22(Spec Issue):52-61.

    PMID: 27006638BACKGROUND
  • Dalayeun JF, Nores JM, Bergal S. Physiology of beta-endorphins. A close-up view and a review of the literature. Biomed Pharmacother. 1993;47(8):311-20. doi: 10.1016/0753-3322(93)90080-5.

    PMID: 7520295BACKGROUND
  • Sprouse-Blum AS, Smith G, Sugai D, Parsa FD. Understanding endorphins and their importance in pain management. Hawaii Med J. 2010 Mar;69(3):70-1. No abstract available.

    PMID: 20397507BACKGROUND
  • Backryd E, Ghafouri B, Larsson B, Gerdle B. Do low levels of beta-endorphin in the cerebrospinal fluid indicate defective top-down inhibition in patients with chronic neuropathic pain? A cross-sectional, comparative study. Pain Med. 2014 Jan;15(1):111-9. doi: 10.1111/pme.12248. Epub 2013 Oct 4.

    PMID: 24118997BACKGROUND
  • Zhao YF, Jiang XZ, Hu SH, Liu Y, Miao L, Song CY. [Observation of plasma levels of beta-endorphin in patients with trigeminal neuralgia]. Shanghai Kou Qiang Yi Xue. 2001 Mar;10(1):46-8. Chinese.

    PMID: 14994078BACKGROUND
  • Cunha GS, Ribeiro JL, Oliveira AR. [Levels of beta-endorphin in response to exercise and overtraining]. Arq Bras Endocrinol Metabol. 2008 Jun;52(4):589-98. doi: 10.1590/s0004-27302008000400004. Portuguese.

    PMID: 18604371BACKGROUND
  • Saltychev M, Vastamaki H, Mattie R, McCormick Z, Vastamaki M, Laimi K. Psychometric Properties of the Pain Numeric Rating Scale When Applied to Multiple Body Regions among Professional Musicians. PLoS One. 2016 Sep 7;11(9):e0161874. doi: 10.1371/journal.pone.0161874. eCollection 2016.

    PMID: 27603011BACKGROUND
  • Gill HS, Prausnitz MR. Does needle size matter? J Diabetes Sci Technol. 2007 Sep;1(5):725-9. doi: 10.1177/193229680700100517.

    PMID: 19885141BACKGROUND
  • Rai B, Kaur J. Salivary stress markers and psychological stress in simulated microgravity: 21 days in 6 degrees head-down tilt. J Oral Sci. 2011 Mar;53(1):103-7. doi: 10.2334/josnusd.53.103.

    PMID: 21467821BACKGROUND
  • Wolf S, Hardy JD. STUDIES ON PAIN. OBSERVATIONS ON PAIN DUE TO LOCAL COOLING AND ON FACTORS INVOLVED IN THE "COLD PRESSOR" EFFECT. J Clin Invest. 1941 Sep;20(5):521-33. doi: 10.1172/JCI101245. No abstract available.

    PMID: 16694857BACKGROUND
  • Mitchell LA, MacDonald RA, Brodie EE. Temperature and the cold pressor test. J Pain. 2004 May;5(4):233-7. doi: 10.1016/j.jpain.2004.03.004.

    PMID: 15162346BACKGROUND
  • Koenig J, Jarczok MN, Ellis RJ, Bach C, Thayer JF, Hillecke TK. Two-week test-retest stability of the cold pressor task procedure at two different temperatures as a measure of pain threshold and tolerance. Pain Pract. 2014 Mar;14(3):E126-35. doi: 10.1111/papr.12142. Epub 2013 Nov 20.

    PMID: 24256148BACKGROUND
  • Lovallo W. The cold pressor test and autonomic function: a review and integration. Psychophysiology. 1975 May;12(3):268-82. doi: 10.1111/j.1469-8986.1975.tb01289.x. No abstract available.

    PMID: 1153632BACKGROUND
  • V Nikolov, M Petkova, B Petrova, K Mineva. Pain perception to the cold pressor test in reproductive - age women: relation to menstrual phase and comparison with men. Trakia J Sci. 12(1):376-380, 2014

    BACKGROUND
  • Herr K, Coyne PJ, McCaffery M, Manworren R, Merkel S. Pain assessment in the patient unable to self-report: position statement with clinical practice recommendations. Pain Manag Nurs. 2011 Dec;12(4):230-50. doi: 10.1016/j.pmn.2011.10.002.

    PMID: 22117755BACKGROUND
  • Pain: clinical manual for nursing practice Pain: clinical manual for nursing practice Margo McCaffery Alexander Beebe Mosby Yearbook UK pound17.25 0 7234 1992 2. Nurs Stand. 1994 Dec 7;9(11):55. doi: 10.7748/ns.9.11.55.s69.

    PMID: 27527475BACKGROUND
  • Hjermstad MJ, Fayers PM, Haugen DF, Caraceni A, Hanks GW, Loge JH, Fainsinger R, Aass N, Kaasa S; European Palliative Care Research Collaborative (EPCRC). Studies comparing Numerical Rating Scales, Verbal Rating Scales, and Visual Analogue Scales for assessment of pain intensity in adults: a systematic literature review. J Pain Symptom Manage. 2011 Jun;41(6):1073-93. doi: 10.1016/j.jpainsymman.2010.08.016.

    PMID: 21621130BACKGROUND
  • Mourot L, Bouhaddi M, Regnard J. Effects of the cold pressor test on cardiac autonomic control in normal subjects. Physiol Res. 2009;58(1):83-91. doi: 10.33549/physiolres.931360. Epub 2008 Jan 17.

    PMID: 18198985BACKGROUND

MeSH Terms

Conditions

HyperalgesiaPain Insensitivity, Congenital

Condition Hierarchy (Ancestors)

Somatosensory DisordersSensation DisordersNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and SymptomsPeripheral Nervous System DiseasesNeuromuscular DiseasesGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Study Officials

  • Gintaras Juodžbalys, PhD

    Lithuanian Universwity of Health Sciences

    STUDY CHAIR
  • Rasa Banienė

    Lithuanian University of Health Sciences

    STUDY CHAIR

Central Study Contacts

Inesa Astramskaitė, DDS

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
SCREENING
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

September 29, 2016

First Posted

May 23, 2017

Study Start

May 1, 2017

Primary Completion

December 1, 2017

Study Completion

December 1, 2017

Last Updated

May 23, 2017

Record last verified: 2017-05

Data Sharing

IPD Sharing
Will not share

No individual data will be available for sharing.