Clinical trial Recruiting at 1 site Observational Ages 18 and up

Examining gut microbiome diversity in patients with advanced lung cancer during treatment

Official title: A Pilot Study to Assess the Diversity of Gut Microbiome in Metastatic Non-Small Cell Lung Cancer (NSCLC) in Correlation to Treatment Effects and Adverse Effects

Run by University of California, Irvine · NCT06221800 · Data updated 2026-11-12

This study is trying to see how the variety of gut bacteria in patients with advanced lung cancer affects their response to treatment and any side effects they might have.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment82 (estimated)
SponsorUniversity of California, Irvine
Academic / other
Drugs / interventionspembrolizumab, nivolumab, atezolizumab, durvalumab, chemotherapy
Locations1 site (Orange, California)
StatusRecruiting
StartedJanuary 31, 2024
Main results expectedDecember 2026
Study endsDecember 2026
Registry record updatedFebruary 5, 2026
Trial IDNCT06221800 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults aged 18 and older with advanced or metastatic Non-Small Cell Lung Cancer who are eligible for specific cancer therapies.

Probably not a fit

Patients who are clinically unstable or unable to participate due to their health condition will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational pilot study aims to collect data on the diversity and composition of gut microbiomes in patients with advanced or metastatic Non-Small Cell Lung Cancer (NSCLC) while they are undergoing treatment. The study will focus on patients receiving FDA-approved PD1 or PDL1 inhibitors, either alone or in combination with chemotherapy, as well as those on tyrosine kinase inhibitors. By analyzing the gut microbiome, researchers hope to understand its correlation with treatment responses and adverse effects experienced by patients. This study will help in identifying potential biomarkers that could influence treatment outcomes.

Why it matters

Potential benefit: If successful, this study could lead to personalized treatment strategies that improve outcomes for patients with advanced lung cancer.

How similar studies have gone: While the exploration of gut microbiome diversity in cancer treatment is a growing field, this specific approach in advanced NSCLC is relatively novel and has not been extensively tested in prior studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* 1\. Advanced/Metastatic non-small cell lung cancer NSCLC patients.
* 2\. The patient himself/herself must be 18 years of age on day of signing informed consent.
* 3\. The subject has signed the informed consent form.
* 4\. The patient must be eligible to receive FDA approved and non-approved PD1 inhibitors (i.e. pembrolizumab, nivolumab) or PDL1 inhibitor (i.e. atezolizumab, durvalumab) either single agent or as combination therapy with chemotherapy, or be eligible to receive FDA approved and non-approved tyrosine kinase inhibitors.
* 5\. The subject will be registered upon submission of the samples. When submitted on separate dates, the submission occurring later will be considered the date of registration

Exclusion Criteria:

* 1\. Those subjects who are determined clinically unstable of the participation of this study as determined by the PI or treating physician will be excluded and asked to focus on their treatment.

Where it's running

  • Chao Family Comprehensive Cancer Center University of California, Irvine
    Orange, California, United States
    Recruiting

Study contacts

  • Principal investigator: Misako Nagasaka, MD,PhD — Chao Family Comprehensive Cancer Center
  • Study coordinator: Chao Family Comprehensive Cancer Center University of California, Irvine
  • Email: ucstudy@uci.edu
  • Phone: 1-877-827-8839

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.