A Single-cell Approach to Identify Biomarkers of Pulmonary Toxicity for Immune Checkpoint Blockade

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18-120
SponsorUniversitaire Ziekenhuizen KU Leuven

About this trial

The main goal of this prospective non-interventional exploratory monocentric study is to characterize the immune cell composition of bronchoalveolar lavage (BAL) fluid from cancer patients experiencing cancer therapy-induced pneumonitis on a single-cell scale. These mechanistic insights can directly lead to putative diagnostic biomarkers and therapeutic targets.

A second highly clinically relevant hypothesis is that single-cell profiling of blood samples will reveal circulating biomarkers of ICB toxicity, making non-invasive diagnosis feasible.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Adult M/F/X (>= 18 years)

Patients receiving or having received treatment per guidelines

Patients undergoing bronchoscopy with BAL, for possible cancer treatment-induced pneumonitis

Not included in other clinical trials

Disqualifiers

None

Trial population

Patients experiencing cancer-treatment induced pneumonitis, undergoing bronchoscopy with BAL

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

  • Immune checkpoint blockade

    Drug

    ICI, administered as standard-of-care treatment

  • Targeted therapy

    Drug

    TKI, administered as standard-of-care treatment

  • Radiotherapy

    Radiation

    RT, administered as standard-of-care treatment

Treatment groups

60 Participants
are divided into 3 treatment groups
Group A: ICI-pneumonitis1 intervention
Group B: Radiotherapy induced pneumonitis1 intervention
Group C: TKI-induced pneumonitis1 intervention

Trial outcomes

Primary outcomes

1

Immune cell proportions, as determined by scRNA-seq, present in ICI-/RT-/TKI-induced pneumonitis BAL fluid

By identifying and statistically comparing the percentages of immune cell subtypes present in ICI-/RT-/TKI-induced pneumonitis BAL fluid, we aim to i) understand which immune processes drive these adverse events ii) identify putative molecular biomarkers iii) identify putative therapeutic targets

Time frame
From date of inclusion until study completion, on average 2 years
2

Differentially expressed genes in BAL fluid, as determined by scRNA-seq, discriminating ICI-/RT-/TKI-induced pneumonitis

By identifying differentially expressed genes in ICI- vs. RT- vs. TKI-induced pneumonitis BAL fluid, we aim to i) understand which immune processes drive these adverse events ii) identify putative molecular biomarkers iii) identify putative therapeutic targets

Time frame
From date of inclusion until study completion, on average 2 years

Secondary outcomes

1

Immune cell proportions, as determined by scRNA-seq, present in ICI-/RT-/TKI-induced pneumonitis peripheral blood mononuclear cells

By identifying and statistically comparing the percentages of immune cell subtypes present in ICI-/RT-/TKI-induced pneumonitis peripheral blood mononuclear cells, we aim to i) understand which immune processes drive these adverse events ii) identify putative molecular biomarkers iii) identify putative therapeutic targets

Time frame
From date of inclusion until study completion, on average 2 years
2

Differentially expressed genes in PBMC, as determined by scRNA-seq, discriminating ICI-/RT-/TKI-induced pneumonitis

By identifying differentially expressed genes in ICI- vs. RT- vs. TKI-induced pneumonitis PBMC, we aim to i) understand which immune processes drive these adverse events ii) identify putative molecular biomarkers iii) identify putative therapeutic targets

Time frame
From date of inclusion until study completion, on average 2 years

Other outcomes

Sponsors and contacts

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