Denna sida har översatts automatiskt och översättningens korrekthet kan inte garanteras. Vänligen se engelsk version för en källtext.

Bone Marrow Aspiration Pain Study

30 juni 2017 uppdaterad av: National Institutes of Health Clinical Center (CC)

Biochemical and Genetic Mechanisms of Acute Clinical Pain During Bone Marrow Aspiration

Background:

- Many people feel pain during and after bone marrow aspiration (collection). Studies suggest that pain may be related to different kinds of inflammation, or the presence of nitric oxide (a normally occurring gas) in the body. Researchers want to study nitric oxide levels in the blood and breath before and after bone marrow collection. They will look at how these levels relate to feelings of pain.

Objectives:

- To better understand pain related to having a bone marrow collection.

Eligibility:

- Individuals at least 18 years of age who are enrolled in a study that requires bone marrow collection.

Design:

  • Participants will be screened with a physical exam, medical history, and blood sample.
  • Participants will provide study blood and breath samples to check nitric oxide levels. Participants will also have a test to measure skin sensitivity to heat and touch.
  • During the collection, participants will keep track of their pain levels.
  • After the collection, participants will keep track of any pain medications they take. They will also record if and when they eat any foods that contain nitrates for about 24 hours.

Studieöversikt

Status

Indragen

Betingelser

Detaljerad beskrivning

Abstract:

This project will explore the biochemical mechanisms associated with acute pain produced by bone marrow aspiration in 36 healthy subjects by : 1) Evaluation of any strong relationships of NO metabolism (as measured by plasma nitrite, nitrosated proteins, cyclic GMP, plasma hemoglobin, reticulocytes, as well as markers of inflammation) with the levels of acute pain in healthy subjects and; 2) Identification of differentially expressed genes and proteins as markers for the nature and severity of pain from bone marrow aspiration. Elucidation of these relationships may identify novel targets for intervention leading to attenuation of pain, improved treatment and less impact on quality of life (QOL) and may identify potential mechanisms for the role of NO in other inflammatory or pain syndromes.

Objectives:

The first objective of the study is to characterize genetic expression during acute pain and pain free phases pre and post bone marrow aspiration (BMA). The second objective is to measure at multiple time points levels of exhaled Nitric Oxide (eNO) and other biomarkers in subjects during pre- and post BMA. The third objective is to evaluate acute and experimental pain perception in these subjects.

Population:

This study will recruit healthy subjects (N=36) who have agreed to donate bone marrow.

Design:

This is a prospective, exploratory study of sensory and affective pain in healthy volunteers. Participants will undergo evaluations (eNO, blood collection, and quantitative sensory testing) during a clinic visit to undergo bone marrow aspiration.

Importance:

The purpose of this study is to improve the understanding of the biochemical and molecular genetic mechanisms associated with acute pain in a healthy population by characterizing the leukocyte transcriptome of pain pre- and post BMA. It is hypothesized that analysis of the transcriptome will result in a panel of biomarkers that correlate with acute pain in a healthy population. The successful elucidation of these relationships may identify novel targets for intervention leading to attenuation of pain, improved treatment and less impact on quality of life and functional status.

Studietyp

Observationell

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år och äldre (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Ja

Kön som är behöriga för studier

Allt

Beskrivning

  • INCLUSION CRITERIA FOR SUBJECTS:

All subjects enrolled in the parent protocol are eligible for enrollment in this study provided they have met all the inclusion criteria in the parent protocol and if they meet all of the following criteria:

  • Age greater than or equal to 18 years old.
  • No chronic medication use that in the judgment of the investigators could confound the study or biomarker measurements.
  • Can speak and understand English to complete assessments and scales

EXCLUSION CRITERIA FOR ALL STUDY PARTICIPANTS:

Study participants will be excluded from the study if he/she has one or more of the following:

  • Inability to provide informed consent.
  • Drug or alcohol dependence/abuse within the past 5 years
  • Cigarette smoking or the use of any tobacco products within two years
  • Use of tranquilizers, steroids, and non-steroidal anti-inflammatory agents three or more times per week.

  • Clinically significant medical condition that will confound the analysis of factors associated with pain, such as:

    • Chronic inflammatory disease (i.e. rheumatoid arthritis, systemic lupus erythematosus, cirrhosis)
    • Chronic pain condition
    • Diabetes mellitus
    • Known malignancies

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

Vad mäter studien?

Primära resultatmått

Resultatmått
Differences over time between whole blood gene expression in the peripheral blood of healthy subjects undergoing an acute pain stimulus.

Sekundära resultatmått

Resultatmått
Quantification and differences in laboratory correlates (particularly plasma nitrite, nitrosated proteins, and cyclic GMP) in health subjects pre- and post-BMA.
Quantification of pain sensory perception in healthy subjects

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

National Institutes of Health Clinical Center (CC)

Utredare

  • Huvudutredare: Wendy B Smith, Ph.D., National Institutes of Health Clinical Center (CC)

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart

2 december 2011

Avslutad studie

27 juni 2013

Studieregistreringsdatum

Först inskickad

1 februari 2012

Först inskickad som uppfyllde QC-kriterierna

1 februari 2012

Första postat (Uppskatta)

2 februari 2012

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

2 juli 2017

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

30 juni 2017

Senast verifierad

27 juni 2013

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • 120001
  • 12-CC-0001

Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .

Kliniska prövningar på Akut smärta

Sök liknande försök

Sponsorer och medarbetare

Medicinska tillstånd

Läkemedelsinterventioner

CROs by country

CROs in Latvia

Betingelser

Sällsynta sjukdomar

Läkemedelsinterventioner

Kosttillskott

Sponsor / medarbetare

Platser

3
Prenumerera