Clinical trial · Observational
Diagnostic Study of Combined Biomnarker Testing in Bronchoalveolar Lavage Samples of Immunocompromised Patients
Open, Prospective, Multicenter Trial to Evaluate the Clinical Significance of Combined Serological (Galactomannan ELISA, 1->3-β-D Glucan Assay) and Molecular (Nested Aspergillus PCR Assay, Multifungal DNA Microarray) Diagnostic Assays to Detect and Characterize Fungal Pathogens in Bronchoalveolar Lavage (BAL) and Blood Samples of Hematological High Risk Patients and to Detect Point Mutations Conferring Azole Resistance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The aim of our prospective and multicentre diagnostic study is therefore to elucidate on the sensitivity and specificity rates of these serologic markers in combination with molecular tools (both an Aspergillus specific and a multifungal PCR based assay), as serologic mark-ers are not pathogen-specific, and furthermore to define species-specific cut-off values for BDG in BAL samples. Additionally, if genomic material of Aspergillus fumigatus is detected by PCR in a clinical sample, we investigate fungal DNA for point mutations in the cyp51A gene mediating resis-tance against common mould-active triazoles with novel rapid, sensitive and specific, non-culture-based PCR-assays and sequencing to optimize antifungal treatment as early as pos-sible.
Conditions
Conditions (4)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Acute Leukemia | Acute Leukemia | ONTOLOGY_EXACT | 0.90 |
| Biomarkers | — | UNRESOLVED | — |
| Invasive Aspergillosis | — | UNRESOLVED | — |
| Stem Cell Transplantation | — | UNRESOLVED | — |
Interventions
Interventions (0)
Data not yet available
Design
Arms and outcomes
Arms (2)
- label
- Immunocompromised Patients
- description
- Patients with acute leukemia undergoing induction chemotherapy or undergoing allogeneic stem cell transplantation
- label
- Control Group
- description
- Patients underdoing bronchoscopy and diagnostic BAL without immunosuppression and without signs of infection (Sarcoidosis, Lung Cancer)
Primary outcomes (1)
- measure
- Diagnostic certainty
- timeFrame
- 6 Weeks
- description
- After 6 weeks the diagnostic performance of the biomarkers and their combination in relation to diagnostic accuracy will be measured
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
- Maximum age
- 100 Years
Show eligibility criteria text
Inclusion Criteria: * acute leukemia or after allogeneic stem cell transplantation * febrile neutropenia * lung infiltrates suggestive for fungal infection (halo sign. nodules, air-crescent sign) Exclusion Criteria: * missing informed consent * other underlying diagnosis
References
Publications (4)
- BACKGROUNDReinwald M, Hummel M, Kovalevskaya E, Spiess B, Heinz WJ, Vehreschild JJ, Schultheis B, Krause SW, Claus B, Suedhoff T, Schwerdtfeger R, Reuter S, Kiehl MG, Hofmann WK, Buchheidt D. Therapy with antifungals decreases the diagnostic performance of PCR for diagnosing invasive aspergillosis in bronchoalveolar lavage samples of patients with haematological malignancies. J Antimicrob Chemother. 2012 Sep;67(9):2260-7. doi: 10.1093/jac/dks208. Epub 2012 Jun 27. PMID 22740590
- BACKGROUNDReinwald M, Spiess B, Heinz WJ, Vehreschild JJ, Lass-Florl C, Kiehl M, Schultheis B, Krause SW, Wolf HH, Bertz H, Maschmeyer G, Hofmann WK, Buchheidt D. Diagnosing pulmonary aspergillosis in patients with hematological malignancies: a multicenter prospective evaluation of an Aspergillus PCR assay and a galactomannan ELISA in bronchoalveolar lavage samples. Eur J Haematol. 2012 Aug;89(2):120-7. doi: 10.1111/j.1600-0609.2012.01806.x. Epub 2012 Jun 22. PMID 22650156
- BACKGROUNDSpiess B, Seifarth W, Merker N, Howard SJ, Reinwald M, Dietz A, Hofmann WK, Buchheidt D. Development of novel PCR assays to detect azole resistance-mediating mutations of the Aspergillus fumigatus cyp51A gene in primary clinical samples from neutropenic patients. Antimicrob Agents Chemother. 2012 Jul;56(7):3905-10. doi: 10.1128/AAC.05902-11. Epub 2012 Apr 23. PMID 22526309
- DERIVEDSpiess B, Postina P, Reinwald M, Cornely OA, Hamprecht A, Hoenigl M, Lass-Florl C, Rath PM, Steinmann J, Miethke T, Lauten M, Will S, Merker N, Hofmann WK, Buchheidt D. Incidence of Cyp51 A key mutations in Aspergillus fumigatus-a study on primary clinical samples of immunocompromised patients in the period of 1995-2013. PLoS One. 2014 Jul 29;9(7):e103113. doi: 10.1371/journal.pone.0103113. eCollection 2014. PMID 25072733