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

8. september 2026 opdateret af: 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.

Studieoversigt

Status

Rekruttering

Betingelser

Undersøgelsestype

Observationel

Tilmelding (Anslået)

70

Kontakter og lokationer

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Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

      • Grenoble, Frankrig
      • Nancy, Frankrig
        • Rekruttering
        • Centre Hospitalier Régional Universitaire Nancy (CHRU)
        • Kontakt:
        • Ledende efterforsker:
          • Isabelle THAON
      • Rouen, Frankrig
        • Rekruttering
        • centre Hospitalier Universitaire Rouen (CHU)
        • Kontakt:
        • Ledende efterforsker:
          • Antoine GISLARD

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

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

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.

Beskrivelse

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.

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Proportion of Patients With Perceived Added Clinical Value of LIBS Imaging
Tidsramme: 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

Samarbejdspartnere og efterforskere

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

Sponsor

Efterforskere

  • Ledende efterforsker: Vincent BONNETERRE, CHU Grenoble Alpes

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 (Anslået)

1. oktober 2026

Primær færdiggørelse (Anslået)

1. juni 2027

Studieafslutning (Anslået)

1. juli 2027

Datoer for studieregistrering

Først indsendt

12. maj 2026

Først indsendt, der opfyldte QC-kriterier

12. maj 2026

Først opslået (Faktiske)

19. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

11. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

8. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 38RC26.0001
  • 2026-A00164-47 (Anden identifikator: ID RCB)

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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