FOB in HSCT and Leukemia Patients With Acute Respiratory Symptoms and Pulmonary Infiltrates
8. juni 2017 oppdatert av: Northside Hospital, Inc.
A Prospective Assessment of the Diagnostic Utility of Emerging Laboratory Assessments Used in Conjunction With FOB in HSCT and Leukemia Patients With Acute Respiratory Symptoms and Pulmonary Infiltrates
Pulmonary infiltrates frequently complicate the care of hematopoietic stem cell transplant (HSCT) and leukemia patients. Bronchoalveolar lavage (BAL) is frequently used to evaluate new pulmonary infiltrates in this population, however utility is limited by a historically low diagnostic yield for infection.
In an effort to improve diagnostic yields, this study will complete a Fiberoptic Bronchoscopy (FOB) within 8 hours of radiographic documentation of pulmonary infiltrates, prior to initiating new antibiotic therapy. To further improve detection of microbiological pathogens, the study will utilize PCR testing with rapid turnaround time to detect atypical pneumonia (M pneumoniae, C. Pneumonia, Legionella species, and respiratory viruses) and aspergillosis.
Studieoversikt
Status
Fullført
Forhold
Intervensjon / Behandling
Detaljert beskrivelse
Proper diagnosis and prompt treatment favorably impacts survival in the post transplant setting, but is often difficult and frequently results in inappropriate or late therapy.
Low yields may be linked with empiric antibody therapy begun prior to the procedure, delayed time to procedure, procedure technique, the presence of graft versus host disease (GVHD), neutropenia, and diffuse infiltrates (as opposed to localized infiltrates or focal masses and nodules).
One recent study found that early FOBs (less than or equal to 4 days between detection of pulmonary infiltrates and FOB) were 2.5 times more likely to establish a diagnosis of pneumonia compared to late examinations.
Delaying this procedure(greater than 5 days between detection of pulmonary infiltrates and FOB) was associated with drug resistant organisms, polymicrobial infections, and worsened patient prognosis.
Studietype
Intervensjonell
Registrering (Faktiske)
49
Fase
- Ikke aktuelt
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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Georgia
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Atlanta, Georgia, Forente stater, 30342
- Northside Hospital
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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
18 år til 80 år (Voksen, Eldre voksen)
Tar imot friske frivillige
Nei
Kjønn som er kvalifisert for studier
Alle
Beskrivelse
Inclusion Criteria:
- Autologous or allogeneic stem cell patients with new acute respiratory symptoms or pulmonary infiltrates
- leukemia patients with new acute respiratory symptoms or pulmonary infiltrates thought to be unrelated to disease
Exclusion Criteria:
- Patients unwilling to undergo FOB
- Patients unable to undergo FOB due to clinical status
- Patients unable to undergo FOB within 8 hours of radiographic report of pneumonia
- Patients unable to wait until completion of FOB to implement antibiotic changes
- Adults unable to provide informed consent
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: N/A
- Intervensjonsmodell: Enkeltgruppeoppdrag
- Masking: Ingen (Open Label)
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
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Eksperimentell: Laboratory testing
All patients will receive the lab testing on bronchoscopy specimens
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Bronchoalveolar lavage (BAL) with subsequent testing for pathogens
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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Number of Patients With Positive Culture or Molecular Results After Brochoscopy
Tidsramme: 30 days
|
To determine the diagnostic yield related to fiberoptic bronchoscopy (FOB) with bronchoalveolar lavage (BAL) in hematopoietic stem cell transplant (HSCT) and leukemia patients with acute respiratory symptoms and pulmonary infiltrates utilizing both current standard of care microbiology testing and emerging molecular genetic laboratory assessments.
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30 days
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Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Number of Patients With Positive CT Result
Tidsramme: 30 days
|
To correlate specific types of pulmonary infiltrates (focal, multifocal, or diffuse interstitial or alveolar infiltrates) with microbiological findings. Patients were evaluated by changes on the CT and categorized as follows:
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30 days
|
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Number of Participants With Positive Bacterial Results by PCR
Tidsramme: 24-48 hours
|
To describe the microbiological findings in HSCT and leukemia patients with fever, respiratory symptoms, and pulmonary infiltrates
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24-48 hours
|
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Number of Patients With Positive Fungal Results by PCR
Tidsramme: 24-48 hours
|
To describe the microbiological findings in HSCT and leukemia patients with fever, respiratory symptoms, and pulmonary infiltrates
|
24-48 hours
|
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Number of Participants With Positive Viral Results by PCR
Tidsramme: 24-48 hours
|
To describe the microbiological findings in HSCT and leukemia patients with fever, respiratory symptoms, and pulmonary infiltrates
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24-48 hours
|
|
Number of Participants With Positive Myocbacteria Results by Culture
Tidsramme: 24-48 hours
|
To describe the microbiological findings in HSCT and leukemia patients with fever, respiratory symptoms, and pulmonary infiltrates
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24-48 hours
|
Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
Samarbeidspartnere
Etterforskere
- Hovedetterforsker: H. Kent Holland, MD, Blood and Marrow Transplant Group of Georgia
Publikasjoner og nyttige lenker
Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.
Generelle publikasjoner
- Mandell LA, Wunderink RG, Anzueto A, Bartlett JG, Campbell GD, Dean NC, Dowell SF, File TM Jr, Musher DM, Niederman MS, Torres A, Whitney CG; Infectious Diseases Society of America; American Thoracic Society. Infectious Diseases Society of America/American Thoracic Society consensus guidelines on the management of community-acquired pneumonia in adults. Clin Infect Dis. 2007 Mar 1;44 Suppl 2(Suppl 2):S27-72. doi: 10.1086/511159. No abstract available.
- Shannon VR, Andersson BS, Lei X, Champlin RE, Kontoyiannis DP. Utility of early versus late fiberoptic bronchoscopy in the evaluation of new pulmonary infiltrates following hematopoietic stem cell transplantation. Bone Marrow Transplant. 2010 Apr;45(4):647-55. doi: 10.1038/bmt.2009.203. Epub 2009 Aug 17.
- Hardak E, Yigla M, Avivi I, Fruchter O, Sprecher H, Oren I. Impact of PCR-based diagnosis of invasive pulmonary aspergillosis on clinical outcome. Bone Marrow Transplant. 2009 Nov;44(9):595-9. doi: 10.1038/bmt.2009.65. Epub 2009 Mar 23.
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. mars 2011
Primær fullføring (Faktiske)
1. oktober 2015
Studiet fullført (Faktiske)
1. april 2017
Datoer for studieregistrering
Først innsendt
1. mars 2011
Først innsendt som oppfylte QC-kriteriene
4. april 2011
Først lagt ut (Anslag)
5. april 2011
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
11. juli 2017
Siste oppdatering sendt inn som oppfylte QC-kriteriene
8. juni 2017
Sist bekreftet
1. juni 2017
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- NSH 909
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
NEI
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