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Treatment of Ragweed-Allergic Asthma With an Immunostimulatory Drug

1. februar 2013 opdateret af: National Institute of Allergy and Infectious Diseases (NIAID)

Asthma Immunotherapy With a Ragweed Allergen Immunostimulatory Sequence Conjugate

This study will test the effectiveness of an investigational treatment for patients with ragweed-induced asthma, sometimes called fall seasonal asthma. The treatment being tested is a series of anti-ragweed shots. The purpose of the study is to determine whether a short series of injections with Amb a 1-immunostimulatory oligodeoxyribonucleotide conjugate (AIC) can cause a long-lasting reduction in the symptoms of asthma that are caused by fall hay fever allergies.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Ragweed allergy is a common trigger of asthmatic flare-ups in people with asthma. Individuals with ragweed allergy suffer increased asthma symptoms during the fall allergy season, which generally runs from August to November. These flare-ups can significantly impact an asthma patient's quality of life. AIC is an investigational medicine that combines special DNA sequences that can modify the way the immune system responds. In AIC, these sequences are linked to a piece of the ragweed pollen molecule (known as Amb a 1) that causes hay fever symptoms. Injections of AIC have been shown to change the way the immune system responds to ragweed pollen in both animals and humans in a way that may lead to reduced hay fever symptoms.

In a previous study, AIC was safe and well tolerated, and patients exhibited a decrease in allergy symptoms lasting up to 2 years after treatment on average. This study will evaluate whether short-term use of AIC during the spring can cause long-term immune tolerance to ragweed, reduce asthma symptoms, and decrease use of asthma medications for future allergy seasons.

During the 2007 fall ragweed allergy season, participants will be observed and be asked to keep a diary of their asthma symptoms and medication use. In the spring of 2008, participants will be randomly assigned to receive six weekly doses of either the experimental medicine or placebo. Participants will be observed again for the 2008 fall ragweed season. Another series of three weekly doses of the assigned study treatment will be given in spring 2009, with observation through the 2009 fall ragweed allergy season and possibly the 2010 season. During the observation periods, participants will be asked to track their asthma symptoms and medication use and report this information to study staff. Study visits will be weekly during the spring and biweekly during the ragweed season, with a maximum of 16 visits per year. Allergy and lung tests as well as blood and urine collection will occur at selected study visits; these tests are designed to measure the participants' immune response.

Undersøgelsestype

Interventionel

Tilmelding

140

Fase

  • Fase 2

Kontakter og lokationer

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

Studiesteder

  • Forenede Stater
    • Maryland
      • Baltimore, Maryland, Forenede Stater, 21224
        • Johns Hopkins University
    • Ohio
      • Cincinnati, Ohio, Forenede Stater, 452323
        • Bernstein Clinical Research Center, University of Cincinnati
      • Columbus, Ohio, Forenede Stater, 43235
        • Optimed Research, Ohio State University
    • Pennsylvania
      • Hershey, Pennsylvania, Forenede Stater, 71033
        • Pennsylvania State University

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

18 år til 65 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • History of asthma
  • History of asthma medication use during the 2005 fall ragweed season
  • Suspected ragweed allergy
  • Positive laboratory tests for ragweed allergy

Exclusion Criteria:

  • Received immunotherapy for ragweed or other allergens within the 5 years prior to study entry
  • Received anti-IgE (omalizumab) within the year prior to study entry
  • 3 or more courses of oral corticosteroids for asthma within the year prior to study entry
  • Inpatient hospitalization for asthma within the 5 years prior to study entry
  • History of respiratory failure or intubation for asthma
  • Smoking within the 6 months prior to study entry
  • Greater than 5 pack/year history of smoking
  • Clinically significant acute or chronic illness
  • Chronic immunodeficiency

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Dobbelt

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Change in average daily asthma medication use between the 2007 and 2008 ragweed seasons

Sekundære resultatmål

Resultatmål
Effect of AIC on selected secondary clinical outcome measures
safety of AIC in this population
mechanisms through which AIC may induce tolerance to ragweed

Samarbejdspartnere og efterforskere

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

Sponsor

National Institute of Allergy and Infectious Diseases (NIAID)

Samarbejdspartnere

Immune Tolerance Network (ITN)

Efterforskere

  • Studiestol: David Broide, MD, University of California, San Diego
  • Ledende efterforsker: Peter Creticos, MD, Johns Hopkins University

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Hjælpsomme links

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. april 2006

Studieafslutning (Faktiske)

1. november 2006

Datoer for studieregistrering

Først indsendt

25. april 2006

Først indsendt, der opfyldte QC-kriterier

25. april 2006

Først opslået (Skøn)

27. april 2006

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

5. februar 2013

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

1. februar 2013

Sidst verificeret

1. februar 2013

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • DAIT ITN031AD

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Amb a 1-immunostimulatory oligodeoxyribonucleotide conjugate (AIC)

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

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Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

Abonner