Irradiation Modulates the Pharmacokinetics of Anticancer Drugs for Head and Neck Cancer

May 8, 2013 updated by: Far Eastern Memorial Hospital

The concurrent use of chemotherapy during radiation therapy (CCRT) is now the important treatment stratagem for locally advanced head and neck cancer or nasopharyngeal cancer (NPC). For these cases, 5-Fluorouracil (5-FU) and cisplatin (CDDP) are the most commonly used agents of CCRT. It plays an important role to improve the treatment outcome and increases the opportunities for organ preservation.

In the past, Radiotherapy (RT) was solely used as a local treatment and its effect was estimated by local effect model. However, growing evidence shows that irradiation has direct DNA damage-dependent effects as well as sending signals to neighboring cells. Recently, the investigators reported that abdominal irradiation could significantly modulate the systemic pharmacokinetics of 5-FU at 0.5 Gy, off-target area in clinical practice, and at 2 Gy, the daily treatment dose for target treatment in an experimental rat model. Additionally, the results from a clinical investigation showed that colorectal cancer patients with lower AUC of 5-FU during adjuvant chemotherapy had lower disease-free survival. Taken together, these lines of evidence support the importance and necessity to search for the mediators responsible for the unexpected effect of local RT on systemic pharmacokinetics of chemotherapeutic agents, such as 5-FU.

In the present study, the investigators examined whether the phenomena and mechanism of RT-PK(pharmacokinetics) is a fact for different anticancer drugs and for different part in human.

Study Overview

Status

Unknown

Conditions

Study Type

Observational

Enrollment (Actual)

30

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Taiwan
      • New Taipei city, Taiwan, 220
        • Far Eastern Memorial Hospital

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

20 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

Chemotherapy-naive patients with histologically confirmed, locally advanced head and neck, nasopharyngeal cancers, who prepares for concurrent chemoradiation therapy as definitive or adjuvant setting, are consecutively enrolled in this study

Description

Inclusion Criteria:

  • locally advanced head and neck, nasopharyngeal cancers, who prepares for concurrent chemoradiation therapy as definitive or adjuvant setting

Exclusion Criteria:

  • previous cancer history；abnormal function of liver and kidney, immunol disease or hematologic disease

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

Cohorts and Interventions

Group / Cohort
control groups
chemotherapy (C/T) is applied in the morning. After 4-6 hrs, RT is delivered (according to the clinical practice).
experimental groups
RT is delivered in the morning. After 4-6 hrs, C/T is applied.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Area under the plasma concentration versus time curve (AUC) of'chemo-drugs"
Time Frame: "15, 30, 45, 60, 90, 120 min post-dose"
"15, 30, 45, 60, 90, 120 min post-dose"

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Far Eastern Memorial Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

April 1, 2012

Primary Completion (Anticipated)

July 1, 2016

Study Registration Dates

First Submitted

April 27, 2012

First Submitted That Met QC Criteria

May 29, 2012

First Posted (Estimate)

May 31, 2012

Study Record Updates

Last Update Posted (Estimate)

May 10, 2013

Last Update Submitted That Met QC Criteria

May 8, 2013

Last Verified

May 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • FEMH No.:100163-F

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.

Clinical Trials on Head and Neck Cancer

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Japan

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe