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MR(Magnetic Resonance) Imaging of Neurotransmitters in Chronic Pain

31. mai 2018 oppdatert av: 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.

Studieoversikt

Status

Avsluttet

Forhold

Intervensjon / Behandling

Detaljert 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.

Studietype

Intervensjonell

Registrering (Faktiske)

87

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Forente stater
    • Michigan
      • Ann Arbor, Michigan, Forente stater, 48105
        • VA Hospital

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

30 år til 70 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Ja

Kjønn som er kvalifisert for studier

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

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Grunnvitenskap
  • Tildeling: Ikke-randomisert
  • Intervensjonsmodell: Faktoriell oppgave
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: 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.
Annen: 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.
Annen: 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.
Annen: 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.
Annen: Pain testing
There will be a 1-1.5 hour session including pain tolerance testing.
Eksperimentell: 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.
Annen: 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.
Annen: Pain testing
There will be a 1-1.5 hour session including pain tolerance testing.
Eksperimentell: 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.
Annen: 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.
Annen: Pain testing
There will be a 1-1.5 hour session including pain tolerance testing.

Hva måler studien?

Primære resultatmål

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

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

University of Michigan

Etterforskere

  • Hovedetterforsker: Foerster Bradley, M.D., University of Michigan
  • Hovedetterforsker: Bradley Foerster, M.D., University of Michigan

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart

1. september 2012

Primær fullføring (Faktiske)

7. juni 2017

Studiet fullført (Faktiske)

7. juni 2017

Datoer for studieregistrering

Først innsendt

13. juni 2012

Først innsendt som oppfylte QC-kriteriene

13. juni 2012

Først lagt ut (Anslag)

15. juni 2012

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

4. juni 2018

Siste oppdatering sendt inn som oppfylte QC-kriteriene

31. mai 2018

Sist bekreftet

1. mai 2018

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • HUM00055261

Plan for individuelle deltakerdata (IPD)

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NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

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