An observational study in Osteoradionecrosis of the Jaw and Xerostomia, sponsored by Loma Linda University. Withdrawn at 1 site in United States. Open to participants aged 18 Years to 100 Years. Per ClinicalTrials.gov, last updated 2017-04-27.
Sponsored by Loma Linda University · Observational
The purpose of this study is to determine if Hyperbaric Oxygen (HBO) therapy improves salivary gland function in previously head-and-neck irradiated patients. The following will be evaluated: salivary a-amylase, IGF-1, Thrombospondin-1, and VEGF-A concentrations, resting and stimulated salivary flow rate and pH, and salivary buffering capacity. Demographic data, past medical/surgical histories, social history and habits, risk factors, medication list, nutritional status, stage and location of tumor treated, dose/duration of radiation, and time elapsed since radiation treatment will be reviewed and recorded. Subjects will complete a quality of life questionnaire, describe (presence/absence) dry mouth symptoms prior to HBO therapy, and provide current A1c level, or submit to a finger stick. The following groups will be evaluated: 1. Head-and-neck irradiated subjects with ORN (indicating HBO therapy) 2. Subjects with other conditions indicating HBO therapy (positive control), and 3. Head-and-neck irradiated subjects without ORN (negative control). Subjects will include 78 males or females, 18 years old and over. In total, participation will last 22 weeks.
This is a prospective study in a human model examining treatment of patients who have sustained damage to salivary glands following head and neck radiation, subsequent xerostomia, and who are currently indicated for hyperbaric oxygen therapy for treatment of osteoradionecrosis. Salivary flow rates, pH and buffering capacity before and after hyperbaric oxygen treatments will be collected using GC America (Alsip, Illinois) Saliva-Check BUFFER Kit and results will be recorded. The 6 tests take 10 minutes to complete per patient. According to GC America, these tests are simple, demonstrate salivary dysfunction, help identify factors affecting salivary dysfunction, and assist in the diagnosis of xerostomia. Salivary testing and data collection will occur on 8 independent visits over the course of hyperbaric oxygen treatment and during follow-up. Stimulated saliva samples will be used to measure proteins that are involved in salivary gland revascularization and repair. Saliva samples will be stored at less than or equal to -20C for up to 1 year. Measurements of salivary VEGF-A, IGF-1, and Thrombospondin-1 will be quantified using R\&D Systems (Minneapolis, MN) ELISA kits and results will be recorded. Salivary Alpha-Amylase will be measured using Rocky Mountain Diagnostics, Inc (Colorado Springs, CO) Alpha-Amylase Saliva kit. Protein analysis will be done on stimulated saliva samples collected at 4 independent visits: first week, fourth week, eighth week, sixteenth week.
The medical, surgical, and health histories of each participant will be reviewed. Each participant will complete the EORTC quality of life core questionnaire (QLQ - C30 v3.0), including head and neck cancer module, at the start and completion of the trial. A blood sample from each participant will be drawn, and analyzed for A1c levels and albumin levels. During the first, fourth, eighth, and sixteenth week, following Saliva-Check BUFFER Kit testing done before HBO therapy, additional saliva will be collected to ensure that a minimum of 2 mL of saliva can be stored at less than or equal to -20 oC for protein analysis.
After salivary testing, each patient will enter a hyperbaric oxygen chamber located at Loma Linda University Medical Center. The patient will gradually be elevated to therapeutic oxygen levels over an 8-12 minute period. At this time, 100% oxygen will be administered at 2.0 ATA or 2.5 ATA, at the discretion of the treating physician, for 90 minutes. A 10-minute air-break will be given after the first 45 minutes if the patients are on the 2.5 ATA protocol. At the conclusion of the oxygen treatment, the oxygen and pressure levels are gradually decreased over 8-12 minutes to return to a depth of 1 ATA. After exiting the hyperbaric oxygen chamber, salivary testing will once again be performed on each patient.
Collected data will be compared to two independent control groups. The Positive Control Group will include 26 individuals who fit the inclusion and exclusion criteria: participants for whom hyperbaric oxygen treatment is indicated, but who have not had radiation therapy for head or neck cancer. The Negative Control Group will include the first 26 individuals who fit the inclusion and exclusion criteria: participants who have previously had head and neck radiation therapy, but for whom hyperbaric oxygen treatment is not indicated. Salivary data for the Positive Control Group will be collected in such as way as to parallel data collected for the Treatment Group. Salivary data will be collected in the same way for the Negative Control Group with the following modifications: salivary flow rate testing will only be performed once during each visit and salivary testing will be spaced on the basis of time in days in contrast to number of hyperbaric oxygen treatment sessions.
286 studies on the registry are indexed under Xerostomia; 51 are open to participants now.
Browse Xerostomia studies →Loma Linda University is the lead sponsor of 306 studies on the registry; 46 are open to participants now.
Of its 29 completed or terminated interventional studies of FDA-regulated products, 23 (79%) have results posted.
Counted across the registry records on this site, refreshed daily.
Patients in the Loma Linda University Healthcare System
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Treatment Group
Positive Control Group
Negative Control Group
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Subjects with ORN treated with Hyperbaric Oxygen Therapy
Subjects treated with Hyperbaric Oxygen Therapy that have not had head or neck radiation therapy
Subjects who have had head and neck radiation that have not had Hyperbaric Oxygen Therapy
Volume of Stimulated Saliva
Time frame: Pre-treatment to post treatment, average duration of 12 weeks
Concentrations of Salivary Thrombospondin-1
Measurements will occur at baseline and weekly throughout treatment with one post treatment measurement one week after last treatment
Time frame: Measured weekly, average duration of treatment is 12 weeks
Concentration of Salivary IGF-1
Measurements will occur at baseline and weekly throughout treatment with one post treatment measurement one week after last treatment
Time frame: Measured weekly, average duration of treatment is 12 weeks
Concentration of Salivary VEGF-A
Measurements will occur at baseline and weekly throughout treatment with one post treatment measurement one week after last treatment
Time frame: Measured weekly, average duration of treatment is 12 weeks
Salivary pH
Measurements will occur at baseline and weekly throughout treatment with one post treatment measurement one week after last treatment
Time frame: Measured weekly, average duration of treatment is 12 weeks
Salivary buffering capacity
Measurements will occur at baseline and weekly throughout treatment with one post treatment measurement one week after last treatment
Time frame: Measured weekly, average duration of treatment is 12 weeks
Impact of HBO treatment on quality of life for ORN patients with xerostomia
Time frame: Pre to Post Treatment, average duration of treatment is 12 weeks
This study is withdrawn, as verified in Apr 2017. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.