Glutamine and L. Reuteri to prevent diarrhea in lung cancer patients on TKI therapy

Effect of Glutamine Plus Lactobacillus Reuteri Added to an Astringent Diet in Preventing Diarrhea Caused by Tyrosine Kinase Inhibitors (TKIs) in Patients With Advanced Non-small Cell Lung Cancer

Phase 3 Interventional Instituto Nacional de Cancerologia de Mexico · NCT05852990

This study is testing if adding glutamine and a probiotic called L. reuteri to the diet can help prevent diarrhea in lung cancer patients receiving TKI treatment.

Quick facts

PhasePhase 3
Study typeInterventional
Enrollment28 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorInstituto Nacional de Cancerologia de Mexico Academic / other
Locations1 site (Mexico City, Mexico City)
Trial IDNCT05852990 on ClinicalTrials.gov

What this trial studies

This open-label randomized clinical trial evaluates the effects of glutamine and Lactobacillus reuteri supplementation in patients with advanced non-small cell lung cancer (NSCLC) who are undergoing treatment with tyrosine kinase inhibitors (TKIs). Participants will receive a standard astringent diet supplemented with 10 grams of glutamine and 100 million CFU of L. reuteri, while a control group will receive only the standard diet. The study aims to determine if this supplementation can effectively prevent diarrhea associated with TKI therapy. Nutritional counseling will be provided to all patients every two weeks throughout the trial.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older with pathologically confirmed advanced NSCLC and an EGFR mutation who are eligible for TKI treatment.

Not a fit: Patients who are currently receiving other anti-cancer therapies or have uncontrolled infections may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly reduce diarrhea in lung cancer patients undergoing TKI therapy, improving their quality of life and treatment adherence.

How similar studies have performed: While similar approaches have been explored, this specific combination of glutamine and L. reuteri in the context of TKI therapy for NSCLC is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Both sexes
* ≥ 18 years old
* Pathologically confirmed diagnosis of NSCLC
* Stage IIIB - IV by the American Joint Committee of Cancer Version 8.
* Candidates to receive EGFR-TKI treatment (1st \& 2nd generation TKI)
* ECOG score ≤ 2
* Life expectancy \> eight weeks
* Signed written informed consent

Exclusion Criteria:

* Patients who cannot attend the first protocol appointment.
* Treatment with other anti-cancer therapy
* Participating in other clinical trials in the former four weeks
* Any other serious condition or uncontrolled active infection, altered mental status or psychiatric disorder that, in the investigator´s opinion, would limit the ability of an individual to meet the requirements of the study or which affects the interpretability of the results.
* Active hepatitis virus infection (any serotype) or chronic infection with a potential risk of reactivation evaluated through a serological panel.
* Active HIV infection.
* Breastfeeding.

Where this trial is running

Mexico City, Mexico City

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Non-Small Cell Lung Cancer With EGFR MutationNon-Small Cell Lung CancerEGFR mutationGlutamineLactobacillus reuteristandard-care diet
Last reviewed 2026-06-10 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.