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Clinical Utility of LIBS Multi-Element Imaging and the IFF Algorithm in Chronic Lung Diseases (PNEUMO-LIBS)

8 września 2026 zaktualizowane przez: University Hospital, Grenoble

Evaluation of the Clinical Utility of LIBS Multi-Element Imaging and the IFF Algorithm for the Etiological and Medico-Legal Management of Chronic Lung Diseases

PNEUMO-LIBS is a multicenter, non-interventional observational study designed to evaluate whether multi-element tissue imaging by Laser-Induced Breakdown Spectroscopy (LIBS), combined with an artificial intelligence-based analysis tool called Interesting Features Finder (IFF), may help physicians better understand the possible causes of chronic lung diseases.

The study focuses on adult patients with chronic lung diseases for which a lung biopsy has already been performed as part of routine medical care. These diseases include diffuse interstitial lung diseases, pulmonary granulomatoses such as sarcoidosis, and emphysema, especially when an environmental or occupational exposure is suspected but not clearly demonstrated.

Some chronic lung diseases may be influenced by inhaled mineral or metallic particles, such as silica, aluminum, titanium, or other metals. However, these exposures are often difficult to document at the individual patient level. Standard clinical, radiological, and pathological investigations do not usually provide direct information on the presence and distribution of such elements within lung tissue.

LIBS is an imaging technique that can detect and map chemical elements directly in tissue samples, including archived formalin-fixed paraffin-embedded biopsy blocks. In this study, lung biopsy samples will be analyzed with LIBS to search for elemental signatures that may be compatible with occupational or environmental exposures. The IFF algorithm will then be used to help interpret the LIBS data and identify rare or unexpected elemental signals.

The study does not require any additional biopsy, blood test, imaging examination, treatment, or hospital visit for participants. It uses tissue samples and medical data already collected during routine care. The results of LIBS and IFF analyses will be presented to the treating physician or investigator, who will complete standardized online questionnaires at three time points: before receiving the LIBS results, after receiving the LIBS report, and after receiving the IFF-assisted interpretation.

The main objective is to assess the perceived clinical utility of LIBS imaging for physicians, particularly regarding etiological understanding, possible occupational disease recognition, and prevention-oriented reasoning. Secondary objectives include assessing the added value of the IFF algorithm and evaluating the feasibility of a centralized multicenter workflow for sample transfer, LIBS analysis, IFF processing, result reporting, and questionnaire completion.

The study aims to include approximately 70 patients across several French hospital centers. Its results may support the development of future diagnostic, occupational health, and environmental medicine approaches, without modifying the medical care of participants during the study.

Przegląd badań

Status

Rekrutacyjny

Warunki

Typ studiów

Obserwacyjny

Zapisy (Szacowany)

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Kontakt w sprawie studiów

Nazwa: Benoit BUSSER
Numer telefonu: +33476768939
E-mail: BBusser@chu-grenoble.fr

Kopia zapasowa kontaktu do badania

Nazwa: Vincent BONNETERRE
Numer telefonu: +33476765851
E-mail: VBonneterre@chu-grenoble.fr

Lokalizacje studiów

Francja
- - Grenoble, Francja
    - Rekrutacyjny
    - CHU Grenoble Alpes
    - Kontakt:
      
      Benoit BUSSER
      
      Numer telefonu: +33476768939
      
      E-mail: BBusser@chu-grenoble.fr
    - Kontakt:
      
      Vincent BONNETERRE
      
      Numer telefonu: 33+ (0)4 76 76 58 51
      
      E-mail: VBonneterre@chu-grenoble.fr
  - Nancy, Francja
    - Rekrutacyjny
    - Centre Hospitalier Régional Universitaire Nancy (CHRU)
    - Kontakt:
      
      Isabelle THAON
      
      Numer telefonu: 33 3 83 15 71 71
      
      E-mail: i.thaon@chru-nancy.fr
    - Główny śledczy:
      
      Isabelle THAON
  - Rouen, Francja
    - Rekrutacyjny
    - centre Hospitalier Universitaire Rouen (CHU)
    - Kontakt:
      
      Antoine GISLARD
      
      Numer telefonu: 33 2 35 88 82 69
      
      E-mail: Antoine.Gislard@chu-rouen.fr
    - Główny śledczy:
      
      Antoine GISLARD

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

Dorosły
Starszy dorosły

Akceptuje zdrowych ochotników

Nie

Metoda próbkowania

Próbka bez prawdopodobieństwa

Badana populacja

Adult patients with chronic lung diseases, including interstitial lung diseases, pulmonary granulomatoses such as sarcoidosis, and pulmonary emphysema, for whom a lung biopsy sample obtained during routine care is available for LIBS and IFF analysis. Participants may be identified retrospectively or prospectively in participating French hospital centers. Only patients who have not objected to the use of their health data and biological samples for research will be included.

Opis

Inclusion Criteria:

Adult patient aged 18 years or older.
Diagnosis or documented clinical suspicion of chronic lung disease, including interstitial lung disease, pulmonary granulomatosis such as sarcoidosis, or pulmonary emphysema.
Availability of a lung tissue biopsy sample obtained during routine medical care and stored as a formalin-fixed paraffin-embedded sample.
Sufficient medical record information to document the clinical context, occupational or environmental exposure history, smoking status, imaging, pathology reports, and other relevant routine-care data.
No documented objection to the secondary use of health data and biological samples for this research.

Exclusion Criteria:

Documented objection to participation in the study or to the secondary use of health data or biological samples for research.
Missing, unavailable, degraded, or technically unusable biopsy sample.
Insufficient medical record information to document the clinical context or exposure history.
Lung condition outside the scope of the study, such as isolated acute infection, isolated cardiac disease, or primary lung cancer.
Patient under legal protection when the applicable legal conditions for non-opposition cannot be fulfilled.

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku	Opis środka	Ramy czasowe
Proportion of Patients With Perceived Added Clinical Value of LIBS Imaging Ramy czasowe: After Review of the LIBS Report, Up to 1 Month After Inclusion	Proportion of patients for whom the investigator reports that LIBS imaging provides new and clinically useful information in at least one of the following domains: etiological understanding, medico-legal reasoning regarding possible occupational disease recognition, or prevention-oriented recommendations.	After Review of the LIBS Report, Up to 1 Month After Inclusion

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Sponsor

University Hospital, Grenoble

Śledczy

Główny śledczy: Vincent BONNETERRE, CHU Grenoble Alpes

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów (Szacowany)

1 października 2026

Zakończenie podstawowe (Szacowany)

1 czerwca 2027

Ukończenie studiów (Szacowany)

1 lipca 2027

Daty rejestracji na studia

Pierwszy przesłany

12 maja 2026

Pierwszy przesłany, który spełnia kryteria kontroli jakości