Drug absorption in people with an ostomy

Beeinflussung Der Resorption Von Arzneimitteln Bei Stoma Patient*Innen

Observational WiGeV Klinik Ottakring · NCT07138326

This study will test whether commonly used psychotropic medicines and newer oral blood thinners reach expected levels in adults who have an ileostomy or colostomy.

Quick facts

Study typeObservational
Enrollment128 (estimated)
Ages18 Years and up
SexAll
SponsorWiGeV Klinik Ottakring Academic / other
Locations1 site (Vienna, State of Vienna)
Trial IDNCT07138326 on ClinicalTrials.gov

What this trial studies

This is an observational monitoring project at a single center in Vienna that follows adults with an ileostomy or colostomy who have had their stoma for at least seven days. Participants must have been taking one or more specified psychotropic drugs or a NOAC for at least seven days, and the team will use blood tests and, where applicable, clinical measures (for example blood pressure or blood sugar) to determine absorption. The goal is to determine whether therapeutic drug levels are achieved in ostomy patients, addressing a gap left by approval studies and limited case reports. Results will help clarify whether dosing or monitoring practices should differ for people with stomas.

Who should consider this trial

Good fit: Adults (18+) with an ileostomy or colostomy in place for at least seven days who have been taking one or more of the listed psychotropic drugs or NOACs for at least seven days are eligible.

Not a fit: People who are not taking any of the listed medications, who had their stoma placed fewer than seven days ago, or who cannot communicate due to an insurmountable language barrier are unlikely to benefit from participation.

Why it matters

Potential benefit: If successful, the findings could help clinicians know when medications need different dosing or closer monitoring in ostomy patients to ensure effectiveness and safety.

How similar studies have performed: Previous evidence consists mainly of case reports and very small patient series, so systematic, larger data are limited and this approach is not yet well established.

Eligibility criteria

Show full inclusion / exclusion criteria
Planned inclusion criteria:

* Male and female patients aged ≥18 years
* Belonging to a collective
* Ileostomy since ≥7d
* Colostomy since ≥7d The stoma must have been inserted at least 7d ago to ensure that a steady state concentration is achieved.
* Taking ≥1 of the following active substances since ≥7d:

  * Psychotropic drugs: citalopram, clozapine, duloxetine, escitalopram, melperone, mianserin, milnacipran, mirtazapine, olanzapine, paliperidone, paroxetine, pregabalin, prothipendyl, quetiapine, risperidone, sertraline, trazodone, venlafaxine
  * NOACs: edoxaban, rivaroxban, apixaban

Exclusion Criteria:

Insurmountable language barrier

Where this trial is running

Vienna, State of Vienna

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 Stoma IleostomyIleostomy - StomaColostomy - StomaAbsorptionPharmakokinetic
Last reviewed 2026-06-13 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.