Impact of genetic variations on side effects from capecitabine in Egyptian cancer patients

Effect of Genetic Polymorphism on Capecitabine-Induced Toxicity in Egyptian Cancer Patients

Observational Ain Shams University · NCT06765252

This study is trying to see how a specific genetic change affects side effects from capecitabine in Egyptian cancer patients being treated for colorectal or breast cancer.

Quick facts

Study typeObservational
Enrollment80 (estimated)
Ages18 Years and up
SexAll
SponsorAin Shams University Academic / other
Drugs / interventionschemotherapy
Locations1 site (Shibīn al Kawm, Menoufia)
Trial IDNCT06765252 on ClinicalTrials.gov

What this trial studies

This observational study aims to investigate how a specific genetic variation in the CES1 gene affects the toxicity experienced by Egyptian patients undergoing capecitabine-based chemotherapy for colorectal or breast cancer. By focusing on the single nucleotide polymorphism rs2244613, the study seeks to understand the variability in drug response among individuals. Participants will be those already receiving capecitabine as part of their standard treatment, allowing for real-world insights into genetic influences on drug toxicity.

Who should consider this trial

Good fit: Ideal candidates include Egyptian adults over 18 years old with breast or colorectal cancer currently undergoing capecitabine-based chemotherapy.

Not a fit: Patients who are not receiving capecitabine or those with gastrointestinal issues that prevent oral medication intake may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to personalized treatment plans that minimize toxicity for cancer patients receiving capecitabine.

How similar studies have performed: While studies on genetic polymorphisms affecting drug toxicity exist, this specific focus on CES1 and capecitabine in an Egyptian population is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with breast or colorectal cancer receiving capecitabine-based chemotherapy
* Age \> 18 years
* ECOG PS 0-2.

Exclusion Criteria:

* Patients treated with irinotecan
* Lack of physical integrity of the upper gastrointestinal tract
* Patients with malabsorption syndrome
* Patients having inability to take oral medication
* Patients with poor performance status
* Patients with chronic diarrhea as ulcerative colitis or Crohn's disease

Where this trial is running

Shibīn al Kawm, Menoufia

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 Colorectal CancerBreast CancerPolymorphismCES1CapecitabineToxicityCancer
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.