- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05620524
Therapeutic Oncolytic Monitoring as a Tool for Effective Exposure to 5-FU in Patients With Locally Advanced, Resectable Gastric or Gastro-oesophageal Junction Cancer Treated With Perioperative FLOT (THOMAS FU FLOT)
December 28, 2022 updated by: Thomas Manten, Catharina Ziekenhuis Eindhoven
Traditional dosing of 5-FU is based on body surface area and DPD enzyme activity.
However, BSA-based dosing is associated with wide inter-individual variations in 5-FU systemic exposure, and also 5-FU-induced toxicity.
The international association for therapeutic drug monitoring and clinical toxicology (IATDMCT) state in there clinical guideline, in which all previous clinical pharmacokinetic studies of 5-FU were reviewed, that only 25% of the patients are within the therapeutic range.
In the traditional treatment regimens a bolus of 400 mg/ m2 5-FU is given, followed by a dose of 2400 mg/m2 as a 46-hour infusion.
The therapeutic range of 5-FU in these older regimens is defined by a target AUC of 20-30 mg*h/L.
In contrast, 5-FU in FLOT regimen is given without a bolus, and in a high dose of 2600 mg/m2 as a 24-hour infusion.
This means that a comparable absolute dose of 5-FU is given with FLOT and the older regimens, however, the manner and duration of administration differ.
Based on this administration, it is expected that the FLOT regimen will result in an approximately two-fold higher steady state concentration (Css), as it is given in an approximately two-fold shorter period of time (t).
As a result of this pharmacokinetic predictions, the exposure to 5-FU (AUC = Css x t) will be comparable between these different 5-FU regimens.
Therefore, we hypothesise that the therapeutic range of 5-FU in FLOT will be comparable to the target AUC of 20-30 mg*h/L in the older regimens.
Similar to the older treatment regimens, we expect that a significant part of patients will be outside this therapeutic window.
To test these hypotheses, the aim of this study is to establish the population exposure of 5-FU in FLOT treatment regimen, and to determine the percentage of patients that achieves this therapeutic range.
Study Overview
Status
Recruiting
Conditions
Intervention / Treatment
Study Type
Observational
Enrollment (Anticipated)
20
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Thomas Manten, MSc.
- Phone Number: +31652128256
- Email: thomas.manten@catharinaziekenhuis.nl
Study Locations
-
-
Noord-Brabant
-
Eindhoven, Noord-Brabant, Netherlands, 5623 EJ
- Recruiting
- Catharina hospital
-
Contact:
- Thomas Manten, MSc
- Phone Number: +31652128256
- Email: thomas.manten@catharinaziekenhuis.nl
-
Contact:
- Maarten Deenen, Dr
- Phone Number: 040 239 8797
- Email: maarten.deenen@catharinaziekenhuis.nl
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Sampling Method
Non-Probability Sample
Study Population
Patients with locally advanced, resectable gastric or gastro-esophageal junction cancer treated with perioperative FLOT.
Description
Inclusion Criteria:
- Pathologically confirmed malignancy for which treatment with 5-FU is indicated in the FLOT regimen.
- Age ≥ 18 years
- Patient is able and willing to give written informed consent
- WHO performance status 0-2
- Patient fulfills the general treatment criteria for treatment with FLOT including appropriate liver and renal function and other standard applicable laboratory values
- Patient is able and willing to undergo extra blood sampling for 5-FU analysis
Exclusion Criteria:
- Patients with known substance abuse, psychotic disorders, and/or other diseases expected to interfere with study or the patient's safety.
- Inability to undergo additional blood sampling.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Observational Models: Cohort
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Patients treated with FLOT regimen
Exposure to 5-FU in patients treated with FLOT
|
Extra blood samples for determining exposure to 5-FU
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Population exposure to 5-FU
Time Frame: 1 year
|
AUC of 5-FU in FLOT treated patients
|
1 year
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Anticipated)
December 19, 2022
Primary Completion (Anticipated)
December 1, 2023
Study Completion (Anticipated)
December 1, 2023
Study Registration Dates
First Submitted
November 10, 2022
First Submitted That Met QC Criteria
November 10, 2022
First Posted (Actual)
November 17, 2022
Study Record Updates
Last Update Posted (Actual)
December 30, 2022
Last Update Submitted That Met QC Criteria
December 28, 2022
Last Verified
December 1, 2022
More Information
Terms related to this study
Other Study ID Numbers
- THOMAS FU FLOT-001
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
No
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Yes
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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