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Peripheral Nerve InjuriesNCT03174665

Chronic Neuropathic Pain After Nerve Repair Hand Surgery

An observational study of Peripheral Nerve Injuries, run by Uppsala University.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This study intends to compare the patients with pain with those who underwent same procedure without developing pain. The patients with pain and without pain will be further analyzed in respect to clinical differences, biomarkers and genetical differences. Read more about this study

Who is it for?
Ages 18 to 85 yearsHealthy volunteers can take part
Conditions the study is for
Peripheral Nerve Injuries
Type of treatment
Pill or oral medicine
How many people
990 participants
Where
No sites listed yet
Study dates
Jan 2016to Jan 2019
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 85 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Patients opererated with nerve suture surgery on Hand Surgery between 2006-2014

Who may be able to join

  • • Female or male subjects > 18 years of age
  • Provision of written informed consent
  • Be able to understand and comply with the requirements of the study
  • Patients with a history of persistent spontaneous and/or evoked pain (by e.g. touch, movement) interfering with daily activities of at least 3 months duration, associated with upper extremity surgery or other trauma affecting the radial, ulnar, medial or digital nerve
  • Spontaneous or evoked pain upon standardized test (mechanical, movement)> 50 on a 100 mm VAS scale in the group with pain after nerve repair surgery and a group of patients with no pain

Who cannot join

  • Other condition that may confound assessment of pain attributed to posttraumatic upper limb pain, as judged by the investigator
  • Any condition/disease that could interfere with the study measurements, e.g. peripheral vascular disease, diabetes mellitus, polyneuropathy etc as judged by the investigator

About this study

Official title: Incidence of Chronic Neuropathic Pain and Sensory Deficits After Nerve Repair Hand Surgery (Correlation With Genotypes and Biomarkers)

This study intends to compare the patients with pain with those who underwent same procedure without developing pain. The patients with pain and without pain will be further analyzed in respect to clinical differences, biomarkers and genetical differences.

Read the detailed description

Chronic pain is a well-known complication after surgery, but the prevalence of persistent pain after upper extremity surgery or other trauma affecting the radial, ulnar or the medial nerve, or branches of these nerves such as digital nerves is unknown. The reason that some patients develop persistent neuropathic pain after surgery, while others, who have been through the exact same procedure or trauma, are pain free is still unknown. The underlying mechanisms are still largely unknown. This can lead to different responses to treatment. Whenever possible, it is important to identify and address the underlying pain mechanisms in the individual patient in order to design an optimal treatment.

The aim of this study was to determine the prevalence and the factors implicated in the development of persistent pain after nerve suture surgery investigating Clinical symptoms, standardized clinical examination for neuropathic pain, 92 biomarkers special developed for neuropathic pain, genetics.

Conditioned pain modulation and Cold pressor test is intend to be performed in all the patients.

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Being tested
No intervention
Medical subject headings
Peripheral Nerve Injuries

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • No interventionOther

Study groups in NCT03174665
Study groupRoleWhat they receive
Patients with PainPatients who had upper limb surgery or other trauma with a history of persistent spontaneous and/or evoked pain with duration of at least 3 months. Patients will be recruited to the study by using a postal follow up questionnaire. Patients who judge their pain at least moderate and/or affecting daily life by will be eligible and asked to participate. Patients will visit the Pain Clinic once. Oral and written information about the study will be provided, informed consent obtained. The affected nerve will be identified and the anatomy verified by ultrasound when needed.
Receives: Other: No intervention
Patients with no painPatients operated with nerve suture surgery after a lesion of the nerves of upper extremity will be recruited to the study by using a postal follow up questionnaire. Patients with no pain will be asked to participate. Patients will visit the Pain Clinic once. Oral and written information about the study will be provided, informed consent obtained. The affected nerve will be identified and the anatomy verified by ultrasound when needed.
Receives: Other: No intervention

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Prevalence of neuropathic pain after trauma and nerve suture surgery

    Patients with trauma and nerve suture surgery operated between 2006 and 2014 on Hand Surgery will receive a postal questionnaire (Leeds Assessment of Neuropathic Pain ). The patients with pain and without pain will be recruited to the study by using this postal follow up questionnaire. Patients who judge their pain at least moderate and/or affecting daily life by will be eligible and asked to participate.

    Measured: 2016 january-2017 january

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Jun 2017
  2. Study startJan 2016
  3. Primary completionJan 2019 (estimated)
  4. Study completionJan 2019 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
990 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03174665
Sponsor's protocol ID
ICONSS
Status last verified
Oct 2017
First submitted
30 May 2017
Last updated
31 Oct 2017
Results posted
No
Data monitoring committee
No
Individual data sharing
Yes

Publications

  • Miclescu A, Ronngren C, Bengtsson M, Gordh T, Hedin A. Increased risk of persistent neuropathic pain after traumatic nerve injury and surgery for carriers of a human leukocyte antigen haplotype. Pain. 2024 Jun 1;165(6):1404-1412. doi: 10.1097/j.pain.0000000000003143. Epub 2023 Dec 22.

    PubMed 38147413

Questions about this trial

What is this clinical trial studying?

An observational study of Peripheral Nerve Injuries, run by Uppsala University.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 31 Oct 2017. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Prevalence of neuropathic pain after trauma and nerve suture surgery (time frame: 2016 january-2017 january). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03174665, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 31 Oct 2017.

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