NCT07084285

Brief Summary

The main objective is to evaluate the efficacy of a single posterior intra-articular injection of dexamethasone on radicular pain (RP) at 1 month in the treatment of uncomplicated chronic cervicobrachial neuralgia (CBN) in adults, resistant to well-conducted first-line medical treatment.

Trial Health

63
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Trial Health Score

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

Enrollment
70

participants targeted

Target at below P25 for phase_3

Timeline
24mo left

Started Jan 2026

Geographic Reach
1 country

1 active site

Status
not yet recruiting

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

Study Progress15%
Jan 2026May 2028

First Submitted

Initial submission to the registry

July 16, 2025

Completed
8 days until next milestone

First Posted

Study publicly available on registry

July 24, 2025

Completed
5 months until next milestone

Study Start

First participant enrolled

January 1, 2026

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2028

Expected
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2028

Last Updated

August 12, 2025

Status Verified

August 1, 2025

Enrollment Period

2.1 years

First QC Date

July 16, 2025

Last Update Submit

August 11, 2025

Conditions

Keywords

Neuralgiacervicobrachialgiacervicobrachial neuralgiaForaminal conflictPosterior intra-articular injectionCervical spinal injection et corticosteroid

Outcome Measures

Primary Outcomes (1)

  • Radicular pain (RP) assessed using a simple self-administered numeric rating scale

    Simple self-administered numeric rating scale, ranging from 0 (no pain) to 100 (maximum pain), over the 48 hours preceding the 1-month visit assessment.

    Month1

Secondary Outcomes (7)

  • Cervical pain (numeric rating scale, self-administered)

    Day 15, Month1, Month2, Month3

  • Neck Disability Index (NDI) score

    Month1 and Month3

  • Professional status

    Month1 and Month3

  • Self-administered EQ5D quality of life scale

    Month1 and Month3

  • Radicular pain (RP) assessed using a simple self-administered numeric rating scale

    Over the 48 hours preceding the Day 15, the 2-month and the 3-month visits assessment.

  • +2 more secondary outcomes

Study Arms (2)

Dexamethasone

EXPERIMENTAL

A single dexamethasone injection via the posterior intra-articular route

Drug: Dexamethasone

Isotonic saline solution

PLACEBO COMPARATOR

A single isotonic saline solution posterior intra-articular injection

Other: Isotonic saline solution

Interventions

A single 4mg (1mL) dexamethasone injection via the posterior intra-articular route, under CT guidance

Dexamethasone

1 mL isotonic saline solution, injectable, for a single posterior intra-articular injection, under CT guidance.

Isotonic saline solution

Eligibility Criteria

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

You may qualify if:

  • Age ≥ 18 years,
  • Unilateral monoradicular cervicobrachial neuralgia (CBN),
  • Predominant radicular pain, with a Radicular Visual Analog Scale (VAS) score ≥ 40/100,
  • Imaging (CT or preferably MRI) performed within the last 6 months,
  • Foraminal conflict at one level on imaging (CT or preferably MRI) performed within the last 6 months, confirmed by a senior investigator trained in the study,
  • Failure of medical treatment that included at least one analgesic (level I to III) and one oral anti-inflammatory (NSAIDs and/or corticosteroids) for at least 7 consecutive days within the last 3 months,
  • Discontinuation of oral anti-inflammatory drugs (NSAIDs and/or corticosteroids) 24 hours prior to randomization,
  • Current episode duration ≥ 3 months,
  • Negative pregnancy test on the day of the procedure for premenopausal female patients,
  • Patients of childbearing age must have reliable contraception for the duration of the study,
  • Absence of biological inflammatory syndrome, thrombocytopenia, or coagulation disorders on the day of the procedure,
  • Patient capable of providing written informed consent prior to participating in the study.

You may not qualify if:

  • Inability to speak, read, or write French fluently,
  • Patient under guardianship or custody, or deprived of liberty,
  • No affiliation with social security,
  • Neurological signs of severity (clinical motor deficit ≤ 3/5, pyramidal irritation signs, or cervical spinal cord edema on MRI),
  • Non-concordant imaging within the last 6 months (absence of conflict, contralateral conflict, or ipsilateral conflict not immediately adjacent), confirmed by a senior investigator trained in the study,
  • Recent cervical spine injection (\< 3 months),
  • Foraminal conflict at more than 2 levels,
  • History of cervical spine surgery within the last 12 months or scheduled surgery in this indication within 6 months,
  • Secondary CBN (traumatic, infectious, neoplastic, or inflammatory etiology),
  • Contraindication to fluoroscopy-guided injection (contrast agent allergy, allergy or contraindication to dexamethasone administration),
  • Pregnant women,
  • Ongoing participation in another therapeutic trial or interventional research study,
  • Patient suspected of non-compliance with the study protocol.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Assistance Publique - Hôpitaux de Paris, Service de Rééducation et de Réadaptation de l'Appareil Locomoteur et des Pathologies du Rachis du Pr François Rannou, Hôpital Cochin

Paris, Île-de-France Region, 75014, France

Location

MeSH Terms

Conditions

Brachial Plexus NeuritisNeuralgia

Interventions

Dexamethasone

Condition Hierarchy (Ancestors)

Brachial Plexus NeuropathiesPeripheral Nervous System DiseasesNeuromuscular DiseasesNervous System DiseasesNeuritisPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

PregnadienetriolsPregnadienesPregnanesSteroidsFused-Ring CompoundsPolycyclic CompoundsSteroids, Fluorinated

Study Officials

  • Camille DASTE, MD,PhD

    AP-HP centre , Université Paris-cité

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Camille DASTE, MD,PhD

CONTACT

Laetitia PEAUDECERF, PhD

CONTACT

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 16, 2025

First Posted

July 24, 2025

Study Start

January 1, 2026

Primary Completion (Estimated)

February 1, 2028

Study Completion (Estimated)

May 1, 2028

Last Updated

August 12, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will not share

Locations