ClinicalTrials.gg
RecruitingNCT07879092Updated Oct 16, 2026

Effect of Ultrasound Guided PRP Injection on Post Trumatic Peripheral Nerve Regeneration.

An interventional study of US guided PRP injection and Rehabilitation in Traumatic Peripheral Nerve Injury, sponsored by Seham A. Elazab. Recruiting at 1 site in Egypt. Open to participants aged 18 Years to 45 Years. Per ClinicalTrials.gov, last updated 2026-10-16.

Sponsored by Seham A. Elazab · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 4 months after the study started (first participant enrolled May 2026, registered Oct 2026).
  • Started May 2026; still recruiting 5 months later.
Updated Oct 16, 2026Newly registeredGo to Updates ↓
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Non-randomized
Ages
18 Years to 45 Years
Sex
All
01

Study summary

This study is a prospective non randomized controlled trial evaluating the effect of ultrasound-guided platelet-rich plasma (PRP) injections on peripheral nerve regeneration.

Patients receiving PRP were compared with a control cohort managed conservatively without PRP.

02

Conditions studied

  • Traumatic Peripheral Nerve Injury

Keywords

  • Platelet Rich Plasma.peripheral nerve regeneration.ultrasound guided injection.
03

In context

Peripheral Nerve Injuries

90 studies on the registry are indexed under Peripheral Nerve Injuries; 24 are open to participants now.

This study's planned enrollment of 60 is above the median of 46 across 62 interventional studies indexed under Peripheral Nerve Injuries.

Browse Peripheral Nerve Injuries studies →

Lead sponsor

This is the only study on the registry with Seham A. Elazab as lead sponsor.

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

04

Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:

  • Inclusion Criteria

Age 18 -45 years Clinical evidence of peripheral nerve injury Electrophysiological confirmation by nerve conduction studies (NCS) Ultrasound evidence of complete or partial continuity, neuroma, or entrapment Stable neurological deficit for at least 4 weeks prior to enrollment.

Exclusion Criteria:

  • Complete nerve transection without surgical repair Active infection Coagulopathy or disorders Prior regenerative injection therapy to the affected nerve.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    PRP Intervention

    30 trumatic nerve injury patients

    Other: US guided PRP injection · Other: Rehabilitation

  • Active comparator
    30 trumatic nerve injury patients as control group

    rehabilitation only

    Other: Rehabilitation

Interventions

  • OtherUS guided PRP injection

    US guided PRP injection for injured nerve and denervated muscles

  • OtherRehabilitation

    usual rehabilitation program

06

What researchers measure

Primary outcomes

  1. Change in Muscle Strength Using the Medical Research Council (MRC) Scale

    Change in muscle strength of the predefined target muscle from baseline, assessed using the Medical Research Council (MRC) scale (0-5), where 0 indicates no muscle contraction and 5 indicates normal muscle strength. Higher scores indicate better muscle recovery.

    Time frame: Baseline and every 3 weeks up to Week 24, including assessments at 3 and 6 months.

Secondary outcomes

  1. Change in Compound Muscle Action Potential (CMAP) Amplitude

    Change in CMAP amplitude (mV) of the affected motor nerve from baseline, measured using standardized nerve conduction studies. Higher amplitudes may indicate improved motor axonal function.

    Time frame: Baseline, 3 months, and 6 months after treatment initiation.

  2. Change in Voluntary Motor Unit Recruitment on Needle EMG

    Voluntary motor unit recruitment will be assessed using needle EMG during maximal voluntary contraction and graded on a four-point ordinal scale: 0 = absent, 1 = severely reduced (discrete activity), 2 = reduced (incomplete interference pattern), and 3 = full interference pattern. Assessments will be performed at baseline, 3 months, and 6 months.

    Time frame: Baseline, 3 months, and 6 months after treatment initiation.

  3. Change in Muscle Echogenicity on Ultrasound

    Change in mean grayscale echogenicity of the predefined target muscle, measured from standardized ultrasound images using quantitative image analysis (0-255 grayscale units). Measurements will be obtained from a consistent anatomical location using standardized imaging settings.

    Time frame: Baseline, 3 months, and 6 months after treatment initiation.

07

Study locations

1 of 1 sites recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started May 2026 (actual). Primary completion is estimated for Dec 2026, 7 months after the start.

Of 26 interventional studies with no phase under Peripheral Nerve Injuries, half reached primary completion within 35 months of starting (the median), counting those still running; a quarter within 20 and three quarters within 57. This study's planned 7 months is below that.

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

Registered
Oct 10, 2026
First posted
Oct 16, 2026
StartActual
May 15, 2026
Primary completionEst.
Dec 15, 2026
CompletionEst.
Jan 15, 2027
Last update
Oct 16, 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 16, 2026
Show all 1 update
  1. Oct 16, 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
NCT07879092
Lead sponsor
Seham A. Elazab
Responsible party
Seham A. Elazab (assistant professor of rheumatology and rehabilitation ,al azahar university ,cairo ,egypt, Al-Azhar University) — Sponsor-investigator
First posted
Oct 16, 2026
Start date
May 15, 2026
Primary completion
Dec 15, 2026 (estimated)
Completion
Jan 15, 2027 (estimated)
Last update
Oct 16, 2026

Oversight

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

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

No contact was published for this record. The registry link below has the sponsor’s details.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion