Asthma and Obesity: Observational
4. mai 2021 oppdatert av: Juan P Wisnivesky, Icahn School of Medicine at Mount Sinai
Obesity and Asthma: Unveiling Metabolic and Behavioral Pathways
Obesity is associated with poor asthma control and greater healthcare utilization and costs.
In this study the researchers will examine the biologic and behavioral interrelationships between these conditions and their impact on outcomes.
Towards this end, the researchers will conduct an observational prospective cohort study of 400 obese asthmatic patients treated at institutions in New York City and Denver, and develop and pilot test educational and counseling modules that take an integrated approach to asthma and obesity self-management support.
Studieoversikt
Detaljert beskrivelse
The objective of this study is to examine novel biological and behavioral pathways that may explain the association of obesity with asthma morbidity, and develop and pilot test educational and counseling modules, based on self-regulation theory, that take an integrated approach to asthma and obesity self-management support.
The Specific Aims are to:
- Compare the longitudinal relationship between L-arginine/ADMA balance and morbidity (lung function, asthma control, acute resource utilization, and quality of life) between obese adults with late onset asthma vs. (a) obese adults with early onset asthma and non-obese asthmatics with early (b) or late (c) onset disease. Age of asthma onset is as categorized as early when developed ≤12 years of age or late when developed >12 years of age.
- Evaluate the interrelationship between obesity- and asthma-related illness beliefs, and the impact of cognitive function, on patients' management of these conditions over time
Studietype
Observasjonsmessig
Registrering (Forventet)
333
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Studiesteder
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Colorado
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Aurora, Colorado, Forente stater, 80045
- University of Colorado Denver, Anschutz Medical Campus
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New York
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New York, New York, Forente stater, 10029
- Icahn School of Medicine at Mount Sinai
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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
21 år til 64 år (Voksen)
Tar imot friske frivillige
Nei
Kjønn som er kvalifisert for studier
Alle
Prøvetakingsmetode
Ikke-sannsynlighetsprøve
Studiepopulasjon
A description of the population from which the groups or cohorts will be selected (for example, primary care clinic, community sample, residents of a certain town).
Beskrivelse
Inclusion Criteria:
- >21 years with a diagnosis of asthma made by a health care provider and evidence of airway reactivity (increase in FEV1 >12% and >200 ml after bronchodilators or positive methacholine test) in prior lung function testing or baseline spirometry;
- prescribed an asthma controller medication;
- English or Spanish speaking.
Exclusion Criteria:
- chronic obstructive lung disease (COPD) or other chronic respiratory illness; - >15 pack-year smoking history because of the possibility of undiagnosed COPD;
- diagnosis of dementia identified in the clinical record.
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
|---|
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Obese asthmatic patients
Observational Cohort
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Forced expiratory volume (FEV1)
Tidsramme: 18 months
|
Forced expiratory volume (FEV1) measures how much air a person can exhale during the first second of a forced breath, performed by spirometry.
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18 months
|
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Exhaled Nitric Oxide (eNO)
Tidsramme: 18 months
|
eNO is the most widely used and standardized noninvasive biomarker that evaluates airway inflammation in asthma.
measured before spirometry using the NIOX MINO system (Aerocrine AB, Stockholm, Sweden) following established procedures.
Current guidelines do not yet specify ''normal'' values; however, eNO levels >20-25ppb have been used as cut-points indicating airway inflammation and the need to change treatment.
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18 months
|
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Asthma Control Questionnaire (ACQ)
Tidsramme: 18 months
|
The ACQ has 7 items: 5 items-self administered for symptoms, 1 item self administered rescue inbronchodilator use, and 1 item FEV1% completed by provider.
7-point scale from 0 = no impairment to 6 = maximum impairment.
The questions are equally weighted and the ACQ score is the mean of the 7 questions, with total score range between 0 (totally controlled) and 6 (severely uncontrolled).
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18 months
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Asthma Controller Medication Adherence
Tidsramme: 4 weeks
|
objectively measure ICS adherence using the Smartinhaler (Nexus6, Franklin, OH) or Doser electronic devices (Meditrack, MA) for metered dose inhalers (MDIs) and the Smartdisk (Nexus6, Franklin, OH) for dry powder inhalers (DPIs) for 4 weeks after each in-person interview.
Adherence will be defined as use of medications on ≥80% of days prescribed, a commonly applied convention.
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4 weeks
|
|
The Medication Adherence Rating Scale (MARS)
Tidsramme: 18 months
|
A 10-item self-reported questionnaire resulting from the combination of the Medication Adherence Questionnaire and the Drug Attitude Inventory.
The MARS contains 10 yes/no item and the sum of items yields a final score ranking from 0 (poor adherence to treatment) to 10 (good adherence to treatment).
|
18 months
|
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Food Behavior Checklist
Tidsramme: 18 months
|
16 question survey.
Each question represents a certain value (1 - 4) that when added collectively predicts the quality of person's food consumption habits.
The higher the score, the more optimal the habits.
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18 months
|
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Physical activity level
Tidsramme: 18 months
|
Physical activity: levels will be assessed using an ActiGraph wGT3X-BL triaxial accelerometer (ActiGraph LLC; Pensacola, FL) worn on the waist for 7 days after each in person visit.
The ActiGraph has been validated for physical activity and sedentary time in laboratory and field settings.
Data from the monitor will be output as activity counts then converted to step counts and time spent in different intensities of activity using previously determined cut-points.
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18 months
|
Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Etterforskere
- Hovedetterforsker: Juan P. Wisnivesky, MD, DrPH, Icahn School of Medicine at Mount Sinai
- Hovedetterforsker: Alex D. Federman, MD, MPH, Icahn School of Medicine at Mount Sinai
- Hovedetterforsker: Fernando Holguin, MD, MPH, University of Colorado Denver, Anschutz Medical Campus
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 (Faktiske)
1. mai 2016
Primær fullføring (Faktiske)
30. april 2021
Studiet fullført (Faktiske)
30. april 2021
Datoer for studieregistrering
Først innsendt
2. mars 2018
Først innsendt som oppfylte QC-kriteriene
2. mars 2018
Først lagt ut (Faktiske)
9. mars 2018
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
6. mai 2021
Siste oppdatering sendt inn som oppfylte QC-kriteriene
4. mai 2021
Sist bekreftet
1. mai 2021
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- GCO 14-1859 O
- R01HL129198 (U.S. NIH-stipend/kontrakt)
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
UBESLUTTE
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Nei
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