NCT07784595

Brief Summary

Head and neck paragangliomas (HNPGs) are predominantly non-secreting, benign and slow-growing tumors. Although most patients remain asymptomatic, up to 30% develop symptoms related to local tumor growth and fewer than 5-10% develop metastatic disease. Surgery has long been considered the standard treatment, while radiotherapy and active surveillance represent alternative management strategies. Treatment-related morbidity and impaired quality of life have been reported in patients with HNPGs; however, the impact of immediate intervention compared with an initial active surveillance strategy has not been prospectively evaluated. This multicenter randomized controlled trial aims to compare active surveillance with immediate intervention in patients with newly diagnosed carotid or vagal paragangliomas. The study hypothesis is that an initial active surveillance strategy increases the time before functional outcome deterioration, particularly ENT-related symptoms, while not resulting in a higher complication rate when treatment is subsequently performed. Eligible patients will undergo baseline assessment including a specialized ENT examination to evaluate cranial nerve function and cervical MRI (or contrast-enhanced CT when MRI is contraindicated) to confirm tumor location, size, and the absence of lymphadenopathy or atypical imaging features. After providing written informed consent, participants will be centrally randomized in a 1:1 ratio, stratified by study center and tumor location, to either active surveillance or immediate intervention. Patients assigned to active surveillance will undergo regular clinical and radiological follow-up, with treatment initiated only if disease progression or symptom development warrants intervention. Patients assigned to immediate intervention will receive surgery or radiotherapy according to multidisciplinary team recommendations and local practice, within six months after randomization. Patients who decline participation in the randomized trial, as well as those who are not eligible for randomization, may be offered participation in a parallel observational study collecting clinical, imaging, treatment and outcome data according to routine practice. Patient quality of life will also be assessed throughout the study (experimental and observational) using validated questionnaires.

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
122

participants targeted

Target at P50-P75 for not_applicable

Timeline
97mo left

Started Oct 2026

Longer than P75 for not_applicable

Geographic Reach
1 country

8 active sites

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 4, 2026

Completed
21 days until next milestone

First Posted

Study publicly available on registry

August 25, 2026

Completed
2 months until next milestone

Study Start

First participant enrolled

October 10, 2026

Expected
8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 10, 2034

Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 10, 2034

Last Updated

August 25, 2026

Status Verified

August 1, 2026

Enrollment Period

8 years

First QC Date

August 4, 2026

Last Update Submit

August 20, 2026

Conditions

Keywords

Head and neck paragangliomaSurgeryRadiation therapyCranial nerve palsyQuality of life

Outcome Measures

Primary Outcomes (1)

  • Time to functional outcome deterioration

    Time to functional outcome deterioration is defined as the delay between inclusion and functional outcome deterioration. Patients without functional deterioration are censored at their last functional assessment. Functional outcome deterioration is defined as a decrease in at least 12 points (or 8.6%) of the FACT H\&N score since inclusion. The FACT-H\&N score ranges from 0 to 148. The higher the score, the better the quality of life.

    From baseline to 5 years maximum

Secondary Outcomes (13)

  • Evolution of the functional outcomes between the groups

    Baseline, 1 year and 5 years

  • Evolution of the functional outcomes between the groups

    Baseline, 1 year and 5 years

  • Quality of life (QoL)

    Baseline, 1 year and 5 years

  • Anxiety

    Baseline, 1 year and 5 years

  • Factors associated with a significant quality of life

    Baseline, 1 year, 5 years

  • +8 more secondary outcomes

Study Arms (2)

Active follow-up

EXPERIMENTAL
Other: Active follow-up

Treatment

ACTIVE COMPARATOR

Patients will be treated by surgery or radiation. The choice between these 2 options is left to the discretion of the investigator and the patient.

Procedure: SurgeryRadiation: Radiation

Interventions

Patients will not receive any treatment, they will undergo annual follow-up assessments according to the standard of care. Upon disease progression, patients will be allowed to switch to the treatment group.

Active follow-up
SurgeryPROCEDURE

Patients may be treated with surgery to remove the paraganglioma within 6 months after randomization.

Treatment
RadiationRADIATION

Patients may be treated with radiation within 6 months after randomization.

Treatment

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients ≥ 18 years-old,
  • Diagnosis of carotid or vagal HNPG with a largest diameter more than 10 mm
  • Diagnosis confirmed by imaging reading (MRI of CT scan) from less than 6 months,
  • Study eligibility validated in multidisciplinary discussion,
  • Patient followed in the reference center,
  • Preliminary written informed consent before any study-specific intervention

You may not qualify if:

  • Patient with initial nerve palsy due to the evaluated HNPG,
  • Patient with non-typical presentation suggestive of aggressiveness (tumor pain, atypical imaging, suspicious lymphadenopathy),
  • Malignant HNPG identified by extra cervical lesion on metabolic imaging,
  • Secreting HNPG defined as plasma or urine metanephrine or normetanephrine more than 2 times ULN,
  • Patient already treated with cervical radiotherapy,
  • Patient already treated with systemic therapy for another pheochromocytoma or paraganglioma,
  • Patient with another evolutive disease or other condition resulting on a life expectancy of less than 5 years at the investigator's discretion,
  • Patient unable or unwilling to be treated at the study center
  • Patients currently enrolled in another interventional study including investigational medicinal products or device,
  • Female patients who are pregnant, lactating or women of child-bearing potential without highly effective methods of contraception
  • Persons deprived of their liberty by a judicial or administrative decision
  • Persons under psychiatric care
  • Persons admitted to a health or social institution for purposes other than research
  • Adults subject to a legal protection measure (guardianship, curatorship)
  • Persons not affiliated to a social security scheme or beneficiaries of a similar scheme

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (8)

Fédération d'endocrinologie, Hôpital cardiologique - Groupement Hospitalier Est - Hospices Civils de Lyon

Bron, 69500, France

Location

Service ORL - Hôpital Lariboisière - AP-HP

Paris, 75010, France

Location

Médecine Nucléaire - Hôpital Pitié-Salpêtrière - AP-HP

Paris, 75013, France

Location

Service d'Endocrinologie - Hôpital Cochin

Paris, 75014, France

Location

Service Endocrinologie et métabolismes - Hôpital Européen Georges Pompidou - AP-HP

Paris, 75015, France

Location

Service d'endocrinologie, diabétologie et nutrition - Hôpital Haut-Lévêque - CHU de Bordeaux

Pessac, 36604, France

Location

Service Endocrinologie Diabétologie Nutrition - Hôpital Nord Laennec - CHU de Nantes

Saint-Herblain, 44800, France

Location

Endocrinologie, diabète et nutrition - Hôpital de Hautepierre - CHRU de Strasbourg

Strasbourg, 67091, France

Location

MeSH Terms

Conditions

ParagangliomaCranial Nerve Diseases

Interventions

Surgical Procedures, OperativeRadiation

Condition Hierarchy (Ancestors)

Neuroendocrine TumorsNeuroectodermal TumorsNeoplasms, Germ Cell and EmbryonalNeoplasms by Histologic TypeNeoplasmsNeoplasms, Nerve TissueNervous System Diseases

Intervention Hierarchy (Ancestors)

Physical Phenomena

Study Officials

  • Hélène LASOLLE, PU-PH, MD

    Hospices Civils de Lyon

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 4, 2026

First Posted

August 25, 2026

Study Start (Estimated)

October 10, 2026

Primary Completion (Estimated)

October 10, 2034

Study Completion (Estimated)

October 10, 2034

Last Updated

August 25, 2026

Record last verified: 2026-08

Locations