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MR(Magnetic Resonance) Imaging of Neurotransmitters in Chronic Pain

31. maj 2018 opdateret af: University of Michigan

MR (Magnetic Resonance) Imaging of the Excitatory and Inhibitory Neurotransmitters in Chronic Pain

This study is designed to assess:

Hypothesis #1: That there is a significant central pain component in a distinct subset of patients diagnosed with knee osteoarthritis(KOA), Chronic low back pain(CLBP), painful diabetic neuropathy(PDN.)

Hypothesis # 2: To establish a reliable strategy for differentiation of central pain predominant from peripheral pain predominant knee osteoarthritis(KOA), chronic low back pain(CLBP)and peripheral diabetic neuropathy(PDN) patients using clinical features, experimental pain testing and magnetic resonance(MR) Spectroscopy.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This study will identify clinical and neuroimaging markers in chronic pain in an effort to provide individual-based treatments. This study will differentiate chronic pain subjects (knee osteoarthritis, low back pain and painful diabetic neuropathy) into two groups: those who have central pain predominant symptoms and those who have peripheral pain predominant symptoms. The response to medical treatment between these two groups is quite different, thus a reliable strategy to correctly categorize chronic pain sufferers offers the opportunity to provide targeted, effective treatments. Chronic pain is a prevalent problem in the VA veteran population with significant associated costs; in particular knee osteoarthritis, chronic low back pain and painful diabetic neuropathy are common in this population. The proposed study will use different clinical pain tests and advanced neuroimaging techniques to improve our understanding of chronic pain and improve patient outcomes.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

87

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Forenede Stater
    • Michigan
      • Ann Arbor, Michigan, Forenede Stater, 48105
        • VA Hospital

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

30 år til 70 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

- Must be Right Handed.

(Chronic Pain with knee osteoarthritis)

  • Diagnosed with: unilateral, symptomatic knee osteoarthritis based on American College of Rheumatology (ACR) criteria.
  • Have had a knee x-ray within the last 6 months.
  • Must have average pain intensity of 4 or greater on a 0 (no pain) to 10 (worst pain imaginable) scale.

(Chronic Low Back Pain)

  • Have primary complaint of constant or intermittent back pain of at least 6 months duration.
  • Have a Roland Morris Disability Questionnaire score of >7.

(Diabetes Mellitus with Painful Peripheral Neuropathy)

  • Have a diagnosis of diabetes mellitus for at least 6 months.
  • Have a diagnosis of diabetic peripheral neuropathy.
  • Have had Electromyography(EMG) testing within the last 6 months.
  • Have a >40 mm score on the short-form McGill Pain questionnaire.

(Healthy controls)

  • Must be pain free
  • No history of neurological or psychiatric illness.
  • No diagnosis of Diabetes Mellitus.
  • No evidence of neuropathy on clinical assessment.

Exclusion Criteria:

  • Being pregnant.
  • Have metal in the body or other contraindications to Magnetic Resonance Imaging (MRI).
  • Have a chronic pain condition unrelated to knee osteoarthritis, chronic low back pain or diabetes.
  • Have currently or a history of brain infection, stroke or tumor.
  • Have a risk factor for other non-diabetic neuropathies

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Grundvidenskab
  • Tildeling: Ikke-randomiseret
  • Interventionel model: Faktoriel opgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Knee osteoarthritis (MRI, surveys, pain testing)
Subjects previously diagnosed with knee osteoarthritis will have an MRI with imaging that measures brain metabolites. There are surveys to complete and a session of pain tolerance testing.
Andet: MRIs
Subjects will have an MRI scan to view specific images, and brain activity patterns thought to be affected in patients with KOA, chronic low back pain and diabetic patients with painful neuropathy. Healthy volunteers will undergo the same MRI scan that lasts about 90 min.
Andet: Pain testing
There will be a 1-1.5 hour session including pain tolerance testing.
Aktiv komparator: Healthy controls (MRI, surveys,pain testing)
Healthy volunteers will have an MRI with imaging that measures brain metabolites. There are surveys to complete and a session of pain tolerance testing.
Andet: MRIs
Subjects will have an MRI scan to view specific images, and brain activity patterns thought to be affected in patients with KOA, chronic low back pain and diabetic patients with painful neuropathy. Healthy volunteers will undergo the same MRI scan that lasts about 90 min.
Andet: Pain testing
There will be a 1-1.5 hour session including pain tolerance testing.
Eksperimentel: diabetic peripheral neuropathy
Subjects previously diagnosed with diabetic peripheral neuropathy will have an MRI with imaging that measures brain metabolites. There are surveys to complete and a session of pain tolerance testing.
Andet: MRIs
Subjects will have an MRI scan to view specific images, and brain activity patterns thought to be affected in patients with KOA, chronic low back pain and diabetic patients with painful neuropathy. Healthy volunteers will undergo the same MRI scan that lasts about 90 min.
Andet: Pain testing
There will be a 1-1.5 hour session including pain tolerance testing.
Eksperimentel: chronic low back pain
Subjects previously diagnosed with chronic low back pain will have an MRI with imaging that measures brain metabolites. There are surveys to complete and a session of pain tolerance testing.
Andet: MRIs
Subjects will have an MRI scan to view specific images, and brain activity patterns thought to be affected in patients with KOA, chronic low back pain and diabetic patients with painful neuropathy. Healthy volunteers will undergo the same MRI scan that lasts about 90 min.
Andet: Pain testing
There will be a 1-1.5 hour session including pain tolerance testing.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Assessment of chronic pain
Tidsramme: 2 years
2 years

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

University of Michigan

Efterforskere

  • Ledende efterforsker: Foerster Bradley, M.D., University of Michigan
  • Ledende efterforsker: Bradley Foerster, M.D., University of Michigan

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. september 2012

Primær færdiggørelse (Faktiske)

7. juni 2017

Studieafslutning (Faktiske)

7. juni 2017

Datoer for studieregistrering

Først indsendt

13. juni 2012

Først indsendt, der opfyldte QC-kriterier

13. juni 2012

Først opslået (Skøn)

15. juni 2012

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

4. juni 2018

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

31. maj 2018

Sidst verificeret

1. maj 2018

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • HUM00055261

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

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