Infiltration of the phrenic nerve for chronic neck pain relief

Phrenic Afferences In Organic and Metabolic Illness: Central Sensitization

Phase 4 Interventional University of Seville · NCT05605639

This study is testing if injecting a pain-relieving medication into the phrenic nerve can help people with chronic neck pain feel better.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment60 (estimated)
Ages18 Years to 64 Years
SexAll
SponsorUniversity of Seville Academic / other
Locations2 sites (Dos Hermanas, Seville and 1 other locations)
Trial IDNCT05605639 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the effects of phrenic nerve infiltration using bupivacaine on patients suffering from chronic neck pain associated with peridiaphragmatic visceral disorders. The study aims to determine whether this intervention can reduce pain sensitivity and improve neck symptoms through a randomized controlled trial. Participants will be assessed for changes in pain threshold, visual analogue scale scores, range of motion, and craniocervical questionnaires. The trial focuses on individuals without specific neurological, traumatic, or infectious causes for their pain.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 64 who experience chronic neck pain and have peridiaphragmatic visceral disorders.

Not a fit: Patients with neurological, traumatic, oncological, infectious, or rheumatic conditions will not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could provide significant relief for patients suffering from chronic neck pain by addressing underlying visceral issues.

How similar studies have performed: While the specific approach of phrenic nerve infiltration is novel, previous studies have indicated that addressing visceral pain sources can improve chronic pain conditions.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Over 18 and under 64 years old
* Patients attending to the physician or physical therapist with a main complaint of neck pain
* Presentation of any peridiaphragmatic visceral disorder.
* That the subject agrees to participate in the project by signing the informed consent.

Exclusion Criteria:

* Illness of neurological, traumatic, oncological, infectious or rheumatic (fibromyalgia, ankylosing spondylitis...) origin.
* Uncooperative subject.
* Severe psychiatric illness.
* Loss of Cognitive Ability.
* Contraindication to infiltration of the phrenic nerve.
* History of head, spinal or upper limb surgery
* History of infiltration for the neck pain in the previous 3 months
* History of physical therapy for the neck pain in the previous 30 days

Where this trial is running

Dos Hermanas, Seville and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Chronic Neck Painphrenic nerveanesthesia, local
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.