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Non Small Cell Lung Cancer Stage IIIPredictionNCT04711330

Response and Toxicity Prediction by Microbiome Analysis After (Concurrent) Chemoradiotherapy

An observational study of Non Small Cell Lung Cancer Stage III and Immunotherapy, run by Leiden University Medical Center at 6 sites in 2 countries.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

The predictive value of the microbiome (throat swabs, stool and of bronchial samples) to identify patients who will relapse during durvalumab treatment after CRT (False negative Rate) at 6 months. Read more about this study

Who is it for?
Ages 18 years and older
How many people
126 participants
Where
6 sitesin 2 countries
Study dates
1 Sep 2022to 2 Oct 2025
How long will I take part?
1 Year
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Adult, Older adult

Study population: All patients who will receive durvalumab as standard of care after completion of (concurrent) chemo-radiation therapy for stage III non small cell lung cancer

Who may be able to join

  • Stages IIIA, IIIB and IIIC (as per UICC 8th TNM edition) NSCLC (histologically or cytologically confirmed) amenable for durvalumab treatment after sequential or concurrent chemoradiotherapy according to local standards. Patients that received neoadjuvant/adjuvant chemotherapy for surgically treated stages I to III NSCLC are allowed as long as therapy was completed at least 6 months prior to the diagnosis of disease recurrence amenable for chemoradiotherapy and resolution of all treatment related toxicity ≤ grade 1 .
  • No signs of disease progression after CCRT
  • At least 1 cycle of chemotherapy before or concurrent during radiotherapy but no more chemotherapy between last radiotherapy session and start durvalumab
  • Male subjects should agree to use an adequate method of contraception starting with the first dose of study therapy through 120 days after the last dose of study therapy.
  • Absence of any of following targetable driver mutations: EGFR, ALK, ROS1
  • over 18 years
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  • ECOG 0-1
  • Must be willing to provide collected stool samples and allow to obtain a throat swab during the observation period. A pulmonary protected brush swab will only be optionally performed in a selected number of patients.
  • Demonstrate adequate organ function

Who cannot join

  • Is currently participating in or has participated in a study of an investigational agent or using an investigational device within 4 weeks of the first dose of treatment.
  • Has had prior monoclonal antibody therapy within 4 weeks prior to study Day 1 or who has not recovered (i.e., ≤ Grade 1 or at baseline) from adverse events due to agents administered more than 4 weeks earlier.
  • Previous treatment with PD-1-PD-L1 axis inhibiting immunotherapy.
  • Active or history of autoimmune disease or immune deficiency, including, but not limited to, myasthenia gravis, myositis, autoimmune hepatitis, systemic lupus erythematosus, rheumatoid arthritis, inflammatory bowel disease, anti-phospholipid antibody syndrome, Wegener granulomatosis, Sjögren syndrome, Guillain-Barré syndrome, multiple sclerosis, vasculitis, or glomerulonephritis with the following exceptions:
  • Patients with a history of autoimmune-related hypothyroidism who are on thyroid replacement hormone are eligible for the study.
  • Patients with controlled Type 1 diabetes mellitus who are on an insulin regimen are eligible for the study.
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  • Skin disorders (such as vitiligo, psoriasis, or alopecia) not requiring systemic immunosuppressive treatment, in particular corticosteroids are permitted to enrol.
  • Subjects with a condition requiring systemic treatment with either corticosteroids (> 10 mg daily prednisone equivalents) or other immunosuppressive medications within 14 days of study drug administration. Inhaled or topical steroids, and adrenal replacement doses > 10 mg daily prednisone equivalents are permitted in the absence of active autoimmune disease.
  • Subjects who have undergone organ transplant or allogeneic stem cell transplantation.
  • Active malignancy or a prior malignancy within the past 3 years, with the following exceptions:
  • Patients with completely resected basal cell carcinoma, cutaneous squamous cell carcinoma, cervical carcinoma in-situ, breast carcinoma in-situ, and patients with isolated elevation in prostate-specific antigen or low risk prostate cancer (managed with watchful waiting) are allowed.
  • Patients who underwent mediastinal radiotherapy in the past are not allowed.
  • Subjects with chronic infections/infectious disorders (eg. Clostridium colitis)
  • Have known but untreated driver mutations of the EGFR gene or ALK or ROS1 translocation.
  • Has evidence of symptomatic interstitial lung disease or an active, non-infectious pneumonitis.
  • Has an active chronic infection requiring systemic therapy.
  • Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject's participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator.
  • Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial.

Trial locations and contacts

6 sites in 2 countries.

6 sites in 2 countries

Belgium4 sites
  • Piet Verkouteren

    Aalst, B-9300

  • Kristof Cuppens

    Hasselt, Flanders, 3500

  • Ingel Demedts

    Roeselare, B8800

  • Lynn Decoster

    Turnhout, B2300

Other trials in Belgium

Netherlands2 sites
  • Netherlands Cancer Institute

    Amsterdam, 1066CX

  • Leiden University Medical center

    Leiden, 2333ZA

Other trials in Netherlands

About this study

Official title: Response and Toxicity Prediction by Microbiome Analysis After (Concurrent) Chemo RT in Locally Advanced NSCLC Treated With IO (Durvalumab)

The predictive value of the microbiome (throat swabs, stool and of bronchial samples) to identify patients who will relapse during durvalumab treatment after CRT (False negative Rate) at 6 months. Exploratory endpoints include the effects of antibiotic therapy before and during IO treatment on toxicity and response rate. The role of exhaled breath analysis in prediction of response and toxicity will also be investigated.

Read the detailed description

In this observational study we aim to investigate the predictive value of the microbiome (throat swabs and stool) to identify patients who will relapse during durvalumab treatment after CRT (False negative Rate) at 6 months.

Collection of stool and throat swipe before start of durvalumab treatment; sampling of blood and exhaled air for analysis of volatile organic compounds.

Improved clinical outcomes after adjuvant treatment with durvalumab following concurrent chemoradiotherapy (CCRT) for locally advanced NSCLC (PACIFIC trial), led to the rapid adoption of this treatment strategy as standard of care. However, despite the improved progression free survival and overall survival, recurrence rate remains high. Approximately 45% of patients will relapse within 1 year, despite adjuvant durvalumab therapy. To date no performant biomarker predicting treatment response or failure nor toxicity exists and the number of prospective studies addressing this issue is limited. Both PD-L1 TPS and TMB should be considered 'enriching' parameters improving response-chances, but they are far from an ideal biomarker. Non-invasive biomarkers are essential in the future for better patient selection and therapy allocation. One of the potential non-invasive biomarkers of interest is the microbiome.

Medical subject headings
Carcinoma, Non-Small-Cell Lung

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT04711330
Study groupRoleWhat they receive
Patients treated with maintenance immunotherapy after concurrent chemo/RTObservation of response and response. The microbiome of the patients throat and stool will be analyzed before the standard treatment with IO is initiated after completion of the chemoradiation therapy. No intervention is planned.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Prediction of outcome (progression) based on microbiome analysis

    To investigate the predictive value of the microbiome (throat swabs and stool) to identify patients who will relapse during durvalumab treatment after CRT (False negative Rate) at 6 months

    Measured: 1 year

Secondary outcomes (4)
  1. Prediction of toxicity based on microbiome analysis

    To investigate the predictive value of the microbiome (throat swabs and stool ) to identify patients that develop irAE's during durvalumab treatment after CRT.

    Measured: 1 year

  2. Prediction of outcome (disease controle rate) based on microbiome analysis

    To determine disease control rate (DCR ie. Stable disease, partial response, and complete response) and PFS at 6 months and correlate to the microbiome.

    Measured: 1 year

  3. Relationship between circulating immune cells and microbiome outcome

    To investigate to what extend cytological characteristics of circulating immune cells obtained from responders and non-responders differ and to explore to what extend these differences relate to the microbiome.

    Measured: 1 year

  4. Value of analysis of exhaled breath at 6 months

    To investigate the predictive value of exhaled breath analysis (by eNose) to identify patients who will relapse or progress during durvalumab treatment after CRT (False negative Rate) at 6 months.

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Jan 2021
  2. Study start1 Sep 2022
  3. Primary completion1 Oct 2025 (estimated)
  4. Study completion2 Oct 2025 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
126 participants (estimated)
Target duration
1 Year
IDs, dates and publications
ClinicalTrials.gov ID
NCT04711330
Sponsor's protocol ID
76017
Acronym
Prediction
Status last verified
Mar 2025
First submitted
12 Jan 2021
Last updated
6 Oct 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided: microbioma data from the participants

Questions about this trial

What is this clinical trial studying?

An observational study of Non Small Cell Lung Cancer Stage III and Immunotherapy, run by Leiden University Medical Center at 6 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 18 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 6 Oct 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 6 sites in Belgium, Netherlands. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Prediction of outcome (progression) based on microbiome analysis (time frame: 1 year). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Oct 2025.

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