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WithdrawnNCT06276946Updated Sep 5, 2025

Sparing Parotid Ducts Via MRI Sialography for Reduced Patient Reported Xerostomia

An interventional study of standard radiotherapy and experimental radiotherapy in Oropharynx Cancer, Head and Neck Cancer and Xerostomia, sponsored by UNC Lineberger Comprehensive Cancer Center. Withdrawn at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-09-05.

Sponsored by UNC Lineberger Comprehensive Cancer Center · Not applicable, Interventional, and Prevention

Why this study was withdrawn
Operational reason
Phase
Not applicable
Study type
Interventional
Enrollment
0
Allocation
Randomized
Ages
18 Years and older
Sex
All
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Study summary

Radiation-induced xerostomia (dry mouth) is one of the most common and severe toxicities experienced by patients undergoing radiation treatment for head and neck cancer. Radiation-induced dry mouth is a frequently experienced symptom and persists after treatment, potentially indefinitely. Current practice does not specifically attempt to spare the parotid ducts, where stem/progenitor cells are believed to preferentially reside, and considers the entire salivary gland to have equal function. New radiation therapy planning and conducting strategies are needed to reduce this toxicity and maximize patient quality of life post-treatment.

This randomized Phase II study explores the contribution of magnetic resonance imaging (MRI) guided salivary gland duct definition to decrease patient-reported xerostomia in patients with oropharynx cancer receiving radiation therapy. The severity of xerostomia will be measured by patient-reported (PRO) symptoms, saliva secretion, saliva pH, and buffering.

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Conditions studied

  • Oropharynx Cancer
  • Head and Neck Cancer
  • Xerostomia

Keywords

  • radiotherapy
  • magnetic resonance imaging
  • parotis
  • parotid duct
  • radiotherapy dosimetry
  • radiotherapy planning
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In context

Oropharyngeal Neoplasms

373 studies on the registry are indexed under Oropharyngeal Neoplasms; 97 are open to participants now.

Browse Oropharyngeal Neoplasms studies →

Lead sponsor

UNC Lineberger Comprehensive Cancer Center is the lead sponsor of 414 studies on the registry; 96 are open to participants now.

Of its 32 completed or terminated interventional studies of FDA-regulated products, 25 (78%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

In order to participate in this study a subject must meet all of the eligibility criteria outlined below. Eligibility must be maintained up for the subject to be considered eligible for treatment.

Inclusion criteria

Inclusion Criteria

  1. Written informed consent was obtained to participate in the study and HIPAA authorization for the release of personal health information.
  2. Subjects is willing and able to comply with study procedures based on the judgment of the investigator.
  3. Age ≥ 18 years at the time of consent.
  4. T0-4, N0-3, M0 disease American Joint Committee on Cancer (AJCC 7th or 8th edition) of the oropharynx (this includes patients with head and neck cancer of unknown primary origin, often categorized as T0 disease, who will be treated with radiotherapy to the oropharynx) planned for definitive radiotherapy +/- chemotherapy

5 No contraindications to receiving MRI such as implanted electrical devices, pregnancy, and significant quantities of metal in the head/neck

Exclusion criteria

Exclusion Criteria

  1. Patients with Sjogren's syndrome or baseline xerostomia (CTCAE > 0 for the question regarding dry mouth)
  2. Patients with lesions grossly involving the salivary glands
  3. Patients with an allergy to lemon juice
  4. Prior history of radiation therapy to the head and neck
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Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
0 participants (actual)

Study arms

  • Active comparator
    Mean Parotid

    Standard radiotherapy planning aims to restrict the mean parotid radiation dose to less than or equal to 14 Gy.

    Radiation: standard radiotherapy

  • Experimental
    Parotid Duct

    Magnetic resonance images will be used to localize the parotid ducts and limit the radiation dose to these structures to less than or equal to 14 Gy.

    Radiation: experimental radiotherapy

Interventions

  • Radiationstandard radiotherapy

    radiotherapy planning goal is to restrict the mean parotid dose is equal to or less than 14Gy.

  • Radiationexperimental radiotherapy

    radiotherapy planning goal is to restrict the parotid duct dose is equal to or less than 14Gy

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What researchers measure

Primary outcomes

  1. The difference in patient-reported xerostomia 6 months

    The difference in patient-reported xerostomia will be assessed using the MD Anderson Symptom Inventory -Head \& Neck (MDASI-HN) questionnaire. MDASI multi-symptom patient-reported outcome (PRO) measure for clinical and research use. Use the MDASI to assess the severity of symptoms Each question is scaled from 0 to 10. 0= not present and 10= as bad as you imagine.

    Time frame: 6 months after completion of radiotherapy

Secondary outcomes

  1. Saliva mass

    The mass of generated saliva post-radiation treatment will be measured.

    Time frame: 6 months and 12 months after completion of radiotherapy

  2. Parotid duct dose constraint

    The efficacy of 14Gy parotid duct constraint for subjects undergoing parotid ductal sparing radiation therapy will be measured using patient-reported xerostomia scores.

    Time frame: 6 months after completion of radiotherapy

  3. The difference in patient-reported xerostomia 12 months

    The difference in patient-reported xerostomia will be assessed using the MD Anderson Symptom Inventory -Head \& Neck (MDASI-HN) questionnaire. MDASI multi-symptom patient-reported outcome (PRO) measure for clinical and research use. Each question is scaled from 0 to 10. 0= not present and 10= as bad as you imagine.

    Time frame: 12 months after completion of radiotherapy

  4. Xerostomia by NCI-CTCAE

    xerostomia will be assessed using The National Cancer Institute Common Terminology Criteria for Adverse Events is a descriptive terminology (NCI-CTCAE) v5.0 that can be utilized for Adverse Event (AE) reporting. A grading (severity) scale is provided for each AE term. Grade 1 Mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; intervention not indicated. Grade 2 Moderate; minimal, local, or noninvasive intervention indicated; limiting age-appropriate instrumental Activities of Daily Living (ADL). Grade 3 Severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self-care ADL. Grade 4 Life-threatening consequences; urgent intervention indicated. Grade 5 Death related to AE.

    Time frame: 12 months after completion of radiotherapy

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Study locations

1 site
  • University of North Carolina at Chapel Hill, Department of Radiation Oncology
    Chapel Hill, North Carolina 27599, United States
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References and documents

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 5, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06276946
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Responsible party
Sponsor
First posted
Feb 26, 2024
Start date
Aug 8, 2025 (estimated)
Primary completion
Jul 2028 (estimated)
Completion
Jan 2029 (estimated)
Last update
Sep 5, 2025

Study contacts

Colette Shen, MD
principal investigator · UNC Lineberger Comprehensive Cancer Center

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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This study is withdrawn, as verified in Aug 2025. You cannot join it, but the record below documents what was studied.

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