Comparison of an Initial Active Follow-up and Therapeutic Care on Functional Outcome and Quality of Life in Patients With Head and Neck Paragangliomas
PRONO-PARAG-N
2 other identifiers
interventional
122
1 country
8
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Oct 2026
Longer than P75 for not_applicable
8 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 4, 2026
CompletedFirst Posted
Study publicly available on registry
August 25, 2026
CompletedStudy Start
First participant enrolled
October 10, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
October 10, 2034
Study Completion
Last participant's last visit for all outcomes
October 10, 2034
August 25, 2026
August 1, 2026
8 years
August 4, 2026
August 20, 2026
Conditions
Keywords
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
EXPERIMENTALTreatment
ACTIVE COMPARATORPatients will be treated by surgery or radiation. The choice between these 2 options is left to the discretion of the investigator and the patient.
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.
Patients may be treated with surgery to remove the paraganglioma within 6 months after randomization.
Patients may be treated with radiation within 6 months after randomization.
Eligibility Criteria
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
Service ORL - Hôpital Lariboisière - AP-HP
Paris, 75010, France
Médecine Nucléaire - Hôpital Pitié-Salpêtrière - AP-HP
Paris, 75013, France
Service d'Endocrinologie - Hôpital Cochin
Paris, 75014, France
Service Endocrinologie et métabolismes - Hôpital Européen Georges Pompidou - AP-HP
Paris, 75015, France
Service d'endocrinologie, diabétologie et nutrition - Hôpital Haut-Lévêque - CHU de Bordeaux
Pessac, 36604, France
Service Endocrinologie Diabétologie Nutrition - Hôpital Nord Laennec - CHU de Nantes
Saint-Herblain, 44800, France
Endocrinologie, diabète et nutrition - Hôpital de Hautepierre - CHRU de Strasbourg
Strasbourg, 67091, France
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Hélène LASOLLE, PU-PH, MD
Hospices Civils de Lyon
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