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Acupuncture-Like Transcutaneous Electrical Nerve Stimulation (ALTENS) or Pilocarpine in Treating Early Dry Mouth in Patients Undergoing Radiation Therapy for Head and Neck Cancer

Phase 2
Completed
Conditions
Head and Neck Cancer
Xerostomia
Interventions
Procedure: ALTENS
Registration Number
NCT00656513
Lead Sponsor
Radiation Therapy Oncology Group
Brief Summary

RATIONALE: Acupuncture-like transcutaneous electrical nerve stimulation (ALTENS) and pilocarpine may help to relieve chronic xerostomia (dry mouth). It is not yet known which remedy is more effective in treating chronic dry mouth caused by radiation therapy in patients with head and neck cancer.

PURPOSE: This randomized phase II/III trial is studying ALTENS to see how well it works compared with pilocarpine in treating chronic dry mouth caused by radiation therapy in patients with head and neck cancer.

Detailed Description

OBJECTIVES:

Primary

* Determine the feasibility of successfully delivering acupuncture-like transcutaneous electrical nerve stimulation (ALTENS) using the Codetron™ unit in a cooperative group setting in head and neck cancer patients with early radiotherapy-induced xerostomia. (phase II)

* Compare the efficacy of ALTENS treatment vs pilocarpine hydrochloride in these patients in reducing overall xerostomia burden, as measured by the University of Michigan 15-item Xerostomia-Related Quality of Life Scale (XeQOLS) at 9 months after randomization. (phase III)

Secondary

* Evaluate the effect of ALTENS treatment on overall xerostomia burden at 6 months after study entry in these patients. (phase II)

* Compare the efficacy of these treatments in these patients in reducing overall xerostomia burden at 4, 6, and 15 months after randomization. (phase III)

* Compare the efficacy of these treatments in these patients in reducing symptom burden, as measured by the four domains of the XeQOLS (i.e., physical functioning, social functioning, personal/psychological functioning, and pain/discomfort) at 4, 6, 9, and 15 months after randomization. (phase III)

* Compare the efficacy of these treatments in these patients in increasing stimulated (i.e., citric acid primed) whole salivary production (WSP), as measured by sialometry, at 4, 6, 9, and 15 months after randomization. (phase III)

* Compare the efficacy of these treatments in these patients in increasing unstimulated (i.e., basal primed) WSP, as measured by sialometry at 4, 6, 9, and 15 months after randomization. (phase III)

* Compare adverse events associated with these treatments in these patients. (phase III)

OUTLINE: This is a phase II followed by a phase III multicenter study.

* Phase II:Patients undergo placement of surface electrodes at the following acupuncture points: large intestine, spleen, stomach, and conception vessel. Patients then undergo acupuncture-like transcutaneous electrical nerve stimulation (ALTENS) to each of these points using the Codetron™ unit for 20 minutes twice weekly for 12 weeks. No further treatment is given after 12 weeks.

* Phase III:Patients are stratified according to prior use of pilocarpine (no vs yes) and length of time from completion of chemotherapy and/or radiotherapy (3-6 months vs 6-12 months vs \> 12 months). Patients are randomized to 1 of 2 treatment arms.

* Arm I: Patients receive oral pilocarpine three times daily for up to 12 weeks in the absence of disease progression or unacceptable toxicity.

* Arm II: Patients undergo ALTENS treatment using the Codetron™ unit twice weekly for up to 12 weeks in the absence of disease progression or unacceptable toxicity.

Patients undergo quality of life (QOL) assessment at baseline and at 6 months after registration in phase II. In phase III patients complete assessments for basal and stimulated whole salivary production, xerostomia burden, and QOL at baseline and at 4, 6, 9, and 15 months after study entry.

After completion of study therapy, patients are followed at 3 months.

PROJECTED ACCRUAL: A total of 45 patients will be accrued to the phase II portion and 144 patients to the phase III portion of this study.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
196
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
ALTENS: Phase IIALTENS-
ALTENS: Phase IIIALTENS-
Pilocarpine: Phase IIIPilocarpine-
Primary Outcome Measures
NameTimeMethod
Phase II: Treatment Compliance (Number of Compliant Patients)Randomization to 12 weeks

Patients completing at least 19 out of 24 ALTENS therapy sessions were categorized as compliant. Fleming's two-stage was used, assuming a successful target compliance rate of 80%, statistical power of 0.87, and a type I error rate of 0.13. If fewer than 9 of the first 13 patients were compliant, then treatment delivery will be deemed not feasible. If there were between 9-12 compliant patients, the second stage analysis would be required to determine feasibility of treatment delivery. If all 13 patients are compliant, treatment delivery will immediately be deemed feasible. The second stage analysis required at least 31 compliant out of 39 overall patients for the treatment delivery to be deemed feasible.

Phase III: Change From Baseline in Overall Xerostomia Burden at 9 MonthsBaseline (randomization) and 9 months

Xerostomia burden is measured by the University of Michigan Xerostomia Related Quality of Life Scale (XeQOLS). The XeQOLS is a validated patient-reported 15-item assessment scale with 4 domains: physical functioning,pain/discomfort, personal/psychologic functioning, and social functioning.The score is the average of all responses of all domains and can range from 0 to 4, with higher scores indicating increased xerostomia burden. Change in xerostomia burden is calculated by subtracting the baseline score from the 9-month score such that a negative change indicates an improvement of the xerostomia burden.

Secondary Outcome Measures
NameTimeMethod
Phase II: Pecentage of Patients With Beneficial Treatment ResponsePre-treatment and 6 months from registration

This secondary objective was to evaluate the effect of ALTENS treatment on overall radiation-induced xerostomia burden by looking at treatment response. Treatment response was determined by a reduction of at least 20% from baseline to 6 months in the University of Michigan Xerostomia Related Quality of Life Scale (XeQOLS). The XeQOLS is a validated patient-reported 15-item assessment scale with 4 domains: physical functioning,pain/discomfort, personal/psychologic functioning, and social functioning.The score is the average of all responses of all domains and can range from 0 to 4. Higher scores indicate increased xerostomia burden. This scale has high reproducibility and sensitivity. For the first and second stage analyses, 4 and 10 patients, respectively, must respond to treatment in order to proceed to the phase III component.

Change From Baseline in Overall Xerostomia Burden at 4, 6, and 15 Months (Phase III)Baseline, 4, 6, and 15 months from randomization

Xerostomia burden is measured by the University of Michigan Xerostomia Related Quality of Life Scale (XeQOLS). The XeQOLS is a validated patient-reported 15-item assessment scale with 4 domains: physical functioning,pain/discomfort, personal/psychologic functioning, and social functioning.The score is the average of all responses of all domains and can range from 0 to 4, with higher scores indicating increased xerostomia burden. Change in xerostomia burden is calculated by subtracting the baseline score from the 9-month score such that a negative change indicates an improvement of the xerostomia burden.

Change From Baseline in Symptom Burden at 4, 6, 9 and 15 Months (Phase III)Baseline, 4, 6, 9 and 15 months from randomization

Symptom burden is measured by the University of Michigan Xerostomia Related Quality of Life Scale (XeQOLS). The XeQOLS is a validated patient-reported 15-item assessment scale with 4 domains: physical functioning,pain/discomfort, personal/psychologic functioning, and social functioning. The domain score is the average of all responses on a given domain and can range from 0 to 4, with higher scores indicating increased symptom burden. Change in symptom burden is calculated by subtracting the baseline score from the 9-month score such that a negative change indicates an improvement of the symptom burden.

Quality of Life (QOL) as Measured by the University of Washington Head and Neck Questionnaire (UWHNSS) Phase IIIBaseline and 9 months from randomization.

The UWHNSS includes ten categories-pain, disfigurement, activity, recreation/entertainment, employment, eating, saliva, taste, speech, mucus/phlegm. Patient scores on the UWHNSS range from 0 to 100 with higher scores indicating declining quality of life. Change in total score was calculated by subtracting baseline from follow-up , thus a positive change score indicates a worsening while a negative change score indicates an improvement.

Change From Baseline in Stimulated Whole Salivary Production (WSP) at 4, 6, 9 and 15 Months (Phase III)Baseline, 4, 6, 9 and 15 months from randomization

Stimulated (citric acid primed) whole salivary production (WSP) was measured by expectoration weight, with one gram of saliva produced considered as one ml of saliva. WSP is expressed in ml/min calculated by dividing the measured weight or volume of WSP by five. Procedure: Patients refrain from eating, drinking, and smoking at least two hours prior to each measurement. Stimulation is elicited by asking patients to rinse 5 ml of 2% citric acid solution in the mouth for 15 seconds and then completely expectorating the citric acid. For each measurement, patients are asked to expectorate continuously into a pre-weighed dry plastic container over a 5-minute period without swallowing. The collected saliva with the plastic container will be weighed (total weight) immediately after each collection. The total weight minus the weight of the container is the weight or volume of whole saliva collected.

Change From Baseline in Unstimulated Whole Salivary Production (WSP) at 4, 6, 9 and 15 Months (Phase III)Pre-treatment to 4, 6, 9 and 15 months from randomization

Basal whole salivary production (WSP) was measured by expectoration weight, with one gram of saliva produced considered as one ml of saliva. WSP is expressed in ml/min calculated by dividing the measured weight or volume of WSP by five. Procedure: Patients refrain from eating, drinking, and smoking at least two hours prior to each measurement. For each measurement, patients are asked to expectorate continuously into a pre-weighed dry plastic container over a 5-minute period without swallowing. The collected saliva with the plastic container will be weighed (total weight) immediately after each collection. The total weight minus the weight of the container is the weight or volume of whole saliva collected.

Trial Locations

Locations (20)

Schiffler Cancer Center at Wheeling Hospital

🇺🇸

Wheeling, West Virginia, United States

McGill Cancer Centre at McGill University

🇨🇦

Montreal, Quebec, Canada

Hospital of Saint Raphael

🇺🇸

New Haven, Connecticut, United States

Maisonneuve-Rosemont Hospital

🇨🇦

Montreal, Quebec, Canada

Hopital Notre-Dame du CHUM

🇨🇦

Montreal, Quebec, Canada

Saint Anthony's Hospital at Saint Anthony's Health Center

🇺🇸

Alton, Illinois, United States

Boston University Cancer Research Center

🇺🇸

Boston, Massachusetts, United States

Emory Crawford Long Hospital

🇺🇸

Atlanta, Georgia, United States

Bloomington Hospital Regional Cancer Institute

🇺🇸

Bloomington, Indiana, United States

Winship Cancer Institute of Emory University

🇺🇸

Atlanta, Georgia, United States

Center for Cancer Care at Goshen General Hospital

🇺🇸

Goshen, Indiana, United States

Methodist Cancer Center at Methodist Hospital

🇺🇸

Indianapolis, Indiana, United States

Roswell Park Cancer Institute

🇺🇸

Buffalo, New York, United States

Cleveland Clinic Taussig Cancer Center

🇺🇸

Cleveland, Ohio, United States

Case Comprehensive Cancer Center

🇺🇸

Cleveland, Ohio, United States

Oklahoma University Cancer Institute

🇺🇸

Oklahoma City, Oklahoma, United States

Centre Hospitalier Universitaire de Quebec

🇨🇦

Quebec City, Quebec, Canada

UCSF Helen Diller Family Comprehensive Cancer Center

🇺🇸

San Francisco, California, United States

Blumenthal Cancer Center at Carolinas Medical Center

🇺🇸

Charlotte, North Carolina, United States

CCOP - St. Louis-Cape Girardeau

🇺🇸

Saint Louis, Missouri, United States

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