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Nanoparticles Analysis in Lung and Bronchi During Various Pulmonary Interstitial Diseases and Relationships With Their Aetiology (NANOPI)

11 september 2015 uppdaterad av: Centre Hospitalier Universitaire de Saint Etienne

Nanoparticles Analysis in Lung and Bronchi During Various Pulmonary Interstitial Diseases and Relationships With Their Aetiology. A Monocentric Study

Nanoparticles (NP) are particles whose length, width and height are less than 100 nanometres. Over the past decade, industrial applications of NP have increased dramatically. Despite their widespread use, their true impact on human health remains unknown and poorly studied. NP exposure in humans primarily occurs via inhalation through the respiratory system. The aim of this study is to estimate the relationships between the nanoparticle load in the lung and bronchi and some interstitial lung diseases. In the aftermath of human exposure to asbestos, the pathological consequences of environmental exposure to nanomaterials could be evaluated upon a mineralogical analysis of pulmonary samples.

Studieöversikt

Status

Avslutad

Betingelser

Intervention / Behandling

Studietyp

Observationell

Inskrivning (Faktisk)

100

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

  • Frankrike
      • Saint-Etienne, Frankrike, 42055
        • Chu Saint-Etienne

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år och äldre (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Testmetod

Sannolikhetsprov

Studera befolkning

  • " Test group ": patients suffering from idiopathic interstitial lung diseases including sarcoidosis and idiopathic pulmonary fibrosis.
  • " Control group ": patients suffering from interstitial lung diseases of known aetiologies, such as hypersensibility pneumonitis, infectious or cancerous interstitial diseases and interstitial diseases caused by drug reactions.

Beskrivning

Inclusion Criteria:

  • Patients with an interstitial lung disease assessed on clinical signs and CT scan, requiring a flexible bronchoscopy with a broncho-alveolar lavage.

These patients suffer from:

  • Idiopathic interstitial lung diseases such as idiopathic pulmonary fibrosis or sarcoidosis OR
  • Interstitial lung diseases of known aetiologies such as hypersensibility pneumonitis, infectious or cancerous interstitial diseases and interstitial diseases caused by drug reactions.

Written consent

Exclusion Criteria:

  • Flexible bronchoscopy or BAL not possible.
  • Pregnant women
  • Patients under legal protection.
  • Patients with contagious disease (HIV infection, tuberculosis, viral hepatitis)

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

Kohorter och interventioner

Grupp / Kohort
Intervention / Behandling
Idiopathic interstitial diseases

" Test group ": patients suffering from idiopathic interstitial lung diseases including sarcoidosis and idiopathic pulmonary fibrosis.

Nanoparticles (NP) loads will be measured on Bronchoalveolar lavages (BAL), bronchial washings (BW), exhaled air condensates (EAC), blood specimen and urine specimen.
Övrig: BAL
Patients with idiopathic and non idiopathic interstitial lung diseases
Övrig: BW
Patients with idiopathic and non idiopathic interstitial lung diseases
Övrig: EAC
Patients with idiopathic and non idiopathic interstitial lung diseases
Övrig: blood specimen
Patients with idiopathic and non idiopathic interstitial lung diseases
Övrig: Urine specimen
Patients with idiopathic and non idiopathic interstitial lung diseases
Non idiopathic intertitial diseases

" Control group ": patients suffering from interstitial lung diseases of known aetiologies, such as hypersensibility pneumonitis, infectious or cancerous interstitial diseases and interstitial diseases caused by drug reactions.

Nanoparticles (NP) loads will be measured on Bronchoalveolar lavages (BAL), bronchial washings (BW), exhaled air condensates (EAC), blood specimen and urine specimen.
Övrig: BAL
Patients with idiopathic and non idiopathic interstitial lung diseases
Övrig: BW
Patients with idiopathic and non idiopathic interstitial lung diseases
Övrig: EAC
Patients with idiopathic and non idiopathic interstitial lung diseases
Övrig: blood specimen
Patients with idiopathic and non idiopathic interstitial lung diseases
Övrig: Urine specimen
Patients with idiopathic and non idiopathic interstitial lung diseases

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
NP load
Tidsram: day 1

The load of NP is a composite outcome. It will be described according to their level of presence (high, moderate or low), their size and chemical analysis.

Analysis: The presence of NP will be assessed by dynamic light scattering (DLS). The elemental compositions of both the particulate (pellet) and the soluble (supernatant) fractions of each sample will be measured by means of inductively coupled plasma optical emission spectroscopy (ICP-OES). The samples for which DLS and ICP-OES corroborated a relatively stronger NP load will be observed under transmission electron microscopy (TEM) and field-emission electron microscopy (FESEM).
day 1

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Correlation between NP load in the lung and observed lung interstitial diseases
Tidsram: Day 1

The load of NP is a composite outcome. It will be described according to their level of presence (high, moderate or low), their size and chemical analysis.

The accurate diagnosis of the disease will be determined in accordance to the latest international guidelines, including the past history of each patient, the

professional courses with focus on potential NP exposure, environmental studies, tobacco or drug use and exhaustive research of collagen or vascular diseases.
Day 1
Correlation between NP load in the lung and NP load in blood specimen
Tidsram: Day 1
The load of NP is a composite outcome. It will be described according to their level of presence (high, moderate or low), their size and chemical analysis.
Day 1
Correlation between NP load in the lung and NP load in urine specimen
Tidsram: Day 1
The load of NP is a composite outcome. It will be described according to their level of presence (high, moderate or low), their size and chemical analysis.
Day 1

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

Centre Hospitalier Universitaire de Saint Etienne

Utredare

  • Huvudutredare: Jean-Michel VERGNON, PhD, Chu Saint-Etienne

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart

1 december 2012

Primärt slutförande (Faktisk)

1 april 2015

Avslutad studie (Faktisk)

1 april 2015

Studieregistreringsdatum

Först inskickad

11 september 2015

Först inskickad som uppfyllde QC-kriterierna

11 september 2015

Första postat (Uppskatta)

15 september 2015

Uppdateringar av studier

Senaste uppdatering publicerad (Uppskatta)

15 september 2015

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

11 september 2015

Senast verifierad

1 september 2015

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • 1008122

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