Skip to content

Personalized Neck Radiation Therapy Directed by Sentinel Lymph Node Biopsy for the Treatment of Oral Cavity Squamous Cell Carcinoma, PRECEDENT Trial

PRECEDENT: Pilot Phase II Study of Personalized Radiation to the Contralateral Neck Directed by Sentinel Node Evaluation in Lateralized Oral Cavity Squamous Cell Carcinoma

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07121595
Enrollment
50
Registered
2025-08-13
Start date
2025-07-17
Completion date
2030-07-01
Last updated
2025-08-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Oral Cavity Squamous Cell Carcinoma, Stage I Lip and Oral Cavity Cancer AJCC v8, Stage II Lip and Oral Cavity Cancer AJCC v8, Stage III Lip and Oral Cavity Cancer AJCC v8, Stage IVA Lip and Oral Cavity Cancer AJCC v8

Brief summary

This phase II trial studies how well personalized neck radiation therapy directed by sentinel lymph node biopsy (SLNB) works in treating patients with oral cavity squamous cell carcinoma (OCSCC). SLNB can be performed as part of standard care for OCSCC. During SLNB, a radiotracer is injected around the tumor. The lymph nodes are then biopsied and tested to see if the tracer injected into the tumor traveled to and is present in the sentinel lymph nodes (SLNs). Results of the SLNB are used to determine whether lymph nodes should be removed in both sides of the neck or just on the same side as the primary tumor. Standard treatment then involves radiation therapy to both sides of the neck, regardless of SLNB results. Radiation therapy uses high energy x-rays, particles, or radioactive seeds to kill tumor cells and shrink tumors. Studies have shown only a small number of patients develop a return of the cancer (recurrence) in the opposite side of the neck after radiation therapy. In addition, radiation therapy can negatively impact patient outcomes like saliva production, speech and swallow function, increased risk of radiation induced cancers, and chronic pain. Standard of care SLNBs may be effective in determining whether radiation therapy only needs to be administered to one side of the neck or both sides. This may help spare tissue on the opposite side of the neck from receiving radiation if there is no indication of lymph node involvement there.

Interventions

PROCEDUREBiospecimen Collection

Undergo blood sample collection

DRUGCarboplatin

Given IV

DRUGCisplatin

Given IV

PROCEDUREComputed Tomography

Undergo CT and/or SPECT-CT

Undergo video fluoroscopic swallow study

DRUGPaclitaxel

Given IV

PROCEDUREPositron Emission Tomography

Undergo PET-CT

OTHERQuestionnaire Administration

Ancillary studies

RADIATIONRadiation Therapy

Undergo RT

PROCEDURESentinel Lymph Node Biopsy

Undergo SLNB

PROCEDURESingle Photon Emission Computed Tomography

Undergo SPECT-CT

RADIATIONTechnetium Tc 99m-labeled Tilmanocept

Given via injection

Given via injection

Sponsors

University of Michigan Rogel Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patient must have biopsy-proven squamous cell carcinoma of the oral cavity * Clinical stage cT1-4a N0-2b M0 within 42 days of study enrollment based on the following work-up: * History and physical examination within 42 days of study enrollment; must include documentation of lateralized primary tumor site * Cross-sectional imaging of the head and neck within 42 days of study enrollment * Cross-sectional imaging of the chest within 42 days of study enrollment * Eastern Cooperative Oncology Group (ECOG) Performance Status 0-2 within 42 days of study enrollment * Age \> 18 * Recommended treatment plan is surgical resection with ipsilateral neck dissection and SPECT-CT-guided sentinel node biopsy. Flap reconstruction is allowed * Patient is willing and able to provide informed consent. Patient provides study-specific informed consent prior to study entry * Women of childbearing potential and male participants must agree to use medically effect means of birth control throughout their participation in the treatment phase of the study

Exclusion criteria

* Evidence of distant metastatic disease based on clinical or radiologic evaluation * Evidence of contralateral neck disease on staging imaging * Prior non-head and neck invasive malignancy (except non-melanomatous skin cancer, including effectively treated basal cell or squamous cell skin cancer, or carcinoma in situ of the breast or cervix) unless disease free for ≥ 2 years * Diagnosis of head and neck squamous cell carcinoma (SCC) in the oropharynx, nasopharynx, hypopharynx, and larynx * Prior systemic chemotherapy for the study cancer; note that prior chemotherapy for a different cancer is allowed. Prior immunotherapy for the study cancer is allowed. * Prior radiotherapy to the region of the study cancer that would result in overlap of radiation therapy fields * Patient with severe, active co-morbidity that would preclude an elective or completion neck dissection * Pregnant and breast-feeding patients * Excisional biopsy for study cancer * Prior surgery involving the lateral neck, including neck dissection or gross injury to the neck that would preclude surgical dissection for this trial. Prior thyroid and central neck surgery is permissible; incisional biopsy is permitted * Underlying or documented history of hematologic malignancy (e.g., chronic lymphocytic leukemia \[CLL\]) or other active disease capable of causing lymphadenopathy (sarcoidosis or untreated mycobacterial infection) * Actively receiving systemic cytotoxic chemotherapy, immunosuppressive, anti-monocyte or immunomodulatory therapy * Currently participating in another investigational therapeutic trial

Design outcomes

Primary

MeasureTime frameDescription
Contralateral regional control rateFrom completion of definitive treatment to neck recurrence date, death date or date of last contact, assessed at 1 year from completion of definitive treatmentContralateral regional control rate is defined as the proportion of evaluable subjects free of contralateral neck recurrence at 1 year from completion of definitive treatment. Regional Recurrence is defined as biopsy-proven cancer within the ipsilateral or contralateral neck at any time point after initial surgical resection. When biopsy is not feasible, evidence of recurrence by imaging suffices only with documented attestation at tumor board that the imaging is clinically diagnostic of regional recurrence. Cumulative incidence function estimate with 90% confidence interval (CI) for follow-up after 1 year.

Secondary

MeasureTime frameDescription
Change in oral and oropharyngeal drynessBaseline up to 3 months from completion of definitive treatmentWill be assessed using five number summary\* (min, Q1, median, Q3, max) of summary score on the Xerostomia questionnaire.
Change in quality of lifeBaseline up to 3 months from completion of definitive treatmentWill be assessed using five number summary\* (min, Q1, median, Q3, max) of summary score on the University of Washington Quality of Life Survey, a 15-item survey evaluating quality of life metrics focused on speech, eating, saliva, taste, phlegm, employment, recreation, activity, disfigurement, and pain.
Change in neck functionBaseline up to 1 year from completion of definitive treatmentWill be assessed using five number summary\* (minimum \[min\], first quartile \[Q1\], median, third quartile \[Q3\], maximum \[max\]) of Neck Dissection Impairment Index summary scores.
Overall survival1 year from completion of definitive treatmentWill assess # evaluable, # events and # censored at 1 year from completion of definitive treatment, as well as KM estimate with 95% CI.
Disease-specific survival1 year from completion of definitive treatmentWill assess # evaluable, # events and # censored at 1 year from completion of definitive treatment, as well as KM estimate with 95% CI.
Recurrence free survival1 year from completion of definitive treatmentWill assess # evaluable, # events and # censored at 1 year from completion of definitive treatment, as well as Kaplan-Meier (KM) estimate with 95% CI.

Countries

United States

Contacts

Primary ContactCancer AnswerLine
CancerAnswerLine@med.umich.edu1-800-865-1125

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026