Viewing Study NCT00222079



Ignite Creation Date: 2024-05-05 @ 12:03 PM
Last Modification Date: 2024-10-26 @ 9:19 AM
Study NCT ID: NCT00222079
Status: TERMINATED
Last Update Posted: 2017-12-14
First Post: 2005-09-16

Brief Title: Evaluation of Esomeprazole in Treating Gastro-esophageal Reflux Disease GERD in Head and Neck Cancer Patients Exposed to Radiation Therapy
Sponsor: Douglas Trask
Organization: University of Iowa

Study Overview

Official Title: Pilot Study to Evaluate Esomeprazole Nexium in Treating Gastro-esophageal Reflux in Patients With Head and Neck Cancer With Prior External Beam Radiation Therapy a Randomized Prospective Placebo-controlled Double-blind Study
Status: TERMINATED
Status Verified Date: 2017-12
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Project canceled due to the implementation of IMRT fewer patients reporting xerostomia
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: The purpose of this research study is to measure acid reflux into the throat both before and after medical treatment in people who have had radiation therapy to their head and neck for the treatment of cancer Many people who have received head and neck radiation therapy develop a dry mouth as a result of the radiation damage to their saliva glands In addition to the discomfort associated with a dry mouth the decrease in saliva may increase the severity of gastro-esophageal reflux disease acid reflux Acid reflux occurs when acid escapes from your stomach into your throat You may not have any symptoms of acid reflux but often it can cause symptoms of heartburn or chest discomfort

Acid reflux can be treated once it is diagnosed Treatment consists of dietary changes behavioral alterations and medication Medications are available that decrease the amount of acid in your stomach Diagnosis of acid reflux is made with a pH-probe to test for acid in your throat
Detailed Description: The annual incidence of squamous cell carcinoma of the head and neck SCCHN is 40000 cases per year in the US and 60000 cases per year in Europe Radiation therapy is employed in combination with chemotherapy in primary treatment or as adjuvant therapy for over half of patients with SSCHN

A high incidence of pathologic laryngopharyngeal reflux and gastroesophageal reflux is observed in patients with head and neck cancer When treatment for the cancer includes radiation therapy an incidence of 90 has been reported 2 Although the interplay between acid reflux and the development of head and neck cancer remains unclear there is a strong argument that radiation therapy worsens the problem by muting the bodys ability to neutralize acid

Radiation therapy is extensively used in the treatment of squamous cell carcinoma of the head and neck Radiation therapy works by exploiting a survival differential between malignant cells and normal cells Simply stated the malignant cells are more likely to die with radiation when compared to normal non-malignant cells However not all normal cells respond equally and some normal tissues have marked sensitivity to radiation damage Salivary glands are one such radiosensitive tissue that is permanently destroyed with external-beam radiotherapy

Damage to salivary tissues by radiation decreases their ability to excrete saliva This is supported by Olmos et al who used salivary scintigraphy on both irradiated and non-irradiated patients and found that 84 of those irradiated had total or partial disturbance in both baseline and stimulated function Of those treated with greater than 4500cGy salivary excretion was almost invariably impaired Xerostomia is the term for the dry mouth which can result from this loss

In addition to the volume of the saliva the contents of the saliva are also important Helm et al evaluated the properties of human saliva relevant to its potential contribution to esophageal acid clearance By measuring the capacity for acid neutralization and plotting titration curves they identified that saliva and especially its bicarbonate content play an important role in neutralization of esophageal acid in both resting and lozenge-stimulated states

As saliva plays an active role in the neutralization of esophageal acid and its clearance from the esophagus loss of saliva is predicted to increase the severity and incidence of reflux as the protective effect of salivas ability to clear and neutralize acid reflux is diminished Korsten et al assessed the effects of chronic xerostomia on parameters of gastroesophageal reflux and esophagitis and reported markedly impaired clearance of acid from the esophagus and abnormal 24-hour intra-esophageal pH studies from a cohort of male patients with xerostomia

Medications are available to increase salivary flow but these are often minimally effective and poorly tolerated Decreasing stomach acid production is an alternative method of mitigating the effect of GERD in these patients

Esomeprazole has been proven beneficial in the treatment of gastroesophageal reflux disease and is anticipated to be beneficial in treating SCCHN patients treated with external-beam radiation therapy

Study Oversight

Has Oversight DMC: None
Is a FDA Regulated Drug?: None
Is a FDA Regulated Device?: None
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: None