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CompletedNCT07866443Updated Oct 8, 2026

Combination of Pregabalin and Trigger Point Injection With Ropivacaine in the Treatment of Myofascial Pain Syndrome of the Neck and Upper Back.

A Phase 4 interventional study of Ropivacaine and Pregabalin in Myofascial Pain Syndrome - Neck, sponsored by National and Kapodistrian University of Athens. Completed at 1 site in Greece. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2026-10-08.

Sponsored by National and Kapodistrian University of Athens · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 6 months after the study started (first participant enrolled Mar 2025, registered Sep 2026).
Updated Oct 8, 2026Newly registeredGo to Updates ↓
Phase
Phase 4
Study type
Interventional
Enrollment
74
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

This study compared trigger point injections with ropivacaine alone versus trigger point injections combined with oral pregabalin in adults with chronic myofascial pain of the neck and upper back. Participants were randomly assigned to one of the two treatment groups. Pain intensity, number of trigger points, neuropathic pain symptoms, and health-related quality of life were assessed at baseline and at 1 and 3 months after treatment.

02

Conditions studied

  • Myofascial Pain Syndrome - Neck
03

In context

Lead sponsor

National and Kapodistrian University of Athens is the lead sponsor of 172 studies on the registry; 52 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age 18-80 years
  • Clinical diagnosis of myofascial pain syndrome according to the Travell and Simons diagnostic criteria

Exclusion criteria

Exclusion Criteria:

  • Age \<18 and >80 years
  • Coexisting systemic rheumatic disease
  • Current treatment with serotonin-norepinephrine reuptake inhibitors (SNRIs)
  • Current treatment with tricyclic antidepressants
  • Current treatment with benzodiazepines
  • Pregnancy
  • Breastfeeding women
  • Permanent cardiac pacemaker
  • N> 20 trigger points
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
74 participants (actual)

Study arms

  • Active comparator
    Ropivacaine Trigger Point Injection

    Participants received trigger point injections with 0.2% ropivacaine, 2 mL per trigger point.

    Drug: Ropivacaine

  • Experimental
    Ropivacaine Trigger Point Injection Plus Pregabalin

    Participants received trigger point injections with 0.2% ropivacaine, 2 mL per trigger point, combined with oral pregabalin 50 mg twice daily.

    Drug: Ropivacaine · Drug: Pregabalin

Interventions

  • Ropivacaine 0.2%, administered as a 2 mL injection into each identified trigger point.

  • Pregabalin 50 mg administered orally twice daily.

06

What researchers measure

Primary outcomes

  1. Change in pain intensity measured by the Numerical Rating Scale (NRS)

    Pain intensity was assessed using the 0-10 Numerical Rating Scale, where 0 indicates no pain and 10 indicates the worst imaginable pain.

    Time frame: Baseline, 1 month and 3 months after treatment

Secondary outcomes

  1. Change in the number of active trigger points

    The number of clinically identified active trigger points in the neck and upper back was recorded during physical examination

    Time frame: Baseline, 1 month, and 3 months after treatment

  2. Change in neuropathic pain assessed using the DN4 questionnaire

    The Douleur Neuropathique 4 Questions (DN4) questionnaire is a widely validated (including the greek population) clinician-administered screening tool designed to evaluate the presence of a neuropathic pain component in clinical trials. This tool measures sensory descriptors and clinical examination findings through a single, aggregated scale consisting of 10 binary items. The Douleur Neuropathique 4 Questions scale uses a binary scoring system with a minimum value of 0 and a maximum value of 10, where higher scores indicate a worse outcome (a higher probability and greater presentation of neuropathic pain features). By combining a 7-item patient interview with a 3-item bedside sensory examination, the DN4 provides a standardized, efficient method to identify neuropathic characteristics, with a score of 4 or higher serving as the established clinical threshold indicating a likely neuropathic pain component.

    Time frame: Baseline, 1 month, and 3 months after treatment

  3. Change in health-related quality of life assessed using the SF-12 questionnaire

    Health-related quality of life was assessed using the 12-item Short Form Health Survey (SF-12). The 12-Item Short-Form Health Survey (SF-12) is a widely validated (including greek population), patient-reported instrument designed to evaluate health-related quality of life in clinical trials. This tool measures functional health across two primary domains: the Physical Component Summary scale and the Mental Component Summary scale. Both scales use a norm-based scoring system where the theoretical minimum value is 0 and the maximum value is 100 (standardized to a general population mean of 50 and a standard deviation of 10), where higher scores indicate a better outcome (superior physical or mental health-related quality of life).

    Time frame: Baseline, 1 month, and 3 months after treatment

Other outcomes

  1. Insomnia

    The incidence of insomnia will be documented with a simple question in each patients' chart "Do you experience insomnia? yes or no."

    Time frame: Baseline and 3 months after treatment

  2. Analgesic consumption

    The incidence of the need of each patient to consume extra analgesic pills will be documented as a question in the patient's chart stating the type of analgesic (paracetamol or NSAIDs) and the frequency.

    Time frame: Baseline and 3 months after treatment

  3. Patient satisfaction

    The patients' satisfaction from the treatment received will be assessed by a questionnaire from 0-3 where 0 means poor satisfaction, 1 average satisfaction, 2 good satisfaction and 3 excellent satisfaction.

    Time frame: Baseline and 3 months after treatment

07

Study locations

1 site
  • Hippocration General Hospital of Athens
    Athens, Greece
08

References and documents

Individual participant data

Plan to share: No — Individual participant data will not be shared because participant consent did not include public sharing of de-identified individual-level data.

No publications or documents are linked to this record.

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Mar 2025 to primary completion in Dec 2025, 9 months.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 24, 2026
First posted
Oct 8, 2026
StartActual
Mar 1, 2025
Primary completionActual
Dec 20, 2025
CompletionActual
Dec 20, 2025
Last update
Oct 8, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Registered
First appeared on the registry. No changes since
Oct 8, 2026
Show all 1 update
  1. Oct 8, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07866443
Responsible party
Polyxeni Botou (Polyxeni Botou, MD, Anesthesiology Resident, Principal Investigator, National and Kapodistrian University of Athens) — Principal investigator
First posted
Oct 8, 2026
Start date
Mar 1, 2025
Primary completion
Dec 20, 2025
Completion
Dec 20, 2025
Last update
Oct 8, 2026

Study contacts

Chrysoula Staikou, PhD
study chair · National and Kapodistrian University f Athens

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Pregabalin

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