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RecruitingNCT07794475Updated Aug 31, 2026

Effect of Trimetazidine on Endothelin-1 and Clinical Outcomes of Patients With Diabetic Peripheral Neuropathy

A Phase 1/2 interventional study of Trimetazidine Dihydrochloride Tablets in Diabetic Peripheral Neuropathic Pain (DPN), sponsored by Sara Refaat Azab Metry. Recruiting at 1 site in Egypt. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-08-31.

Sponsored by Sara Refaat Azab Metry · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Started Aug 2026; still recruiting 3 months later.
Phase
Phase 1/2
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The goal of this clinical trial is to investigate if trimetazidine can improve clinical outcomes of patients with diabetic peripheral neuropathy. The main questions it aims to answer are:

Does trimetazidine improve the symptoms of diabetic peripheral neuropathy? Does trimetazidine affect endothelin-1 levels?

Participants in the interventional arm will receive trimetazidine tablets 35 mg twice daily for three months.

02

Conditions studied

  • Diabetic Peripheral Neuropathic Pain (DPN)

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03

In context

Neuralgia

1,100 studies on the registry are indexed under Neuralgia; 241 are open to participants now.

This study's planned enrollment of 60 is above the median of 52 across 831 interventional studies indexed under Neuralgia.

Browse Neuralgia studies →

Lead sponsor

This is the only study on the registry with Sara Refaat Azab Metry as lead sponsor.

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

04

Who can participate

Ages eligible
18 Years to 65 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

  • Males or females aged 18-65 years diagnosed with Type 2 Diabetes.
  • Regular attendance of the outpatient diabetes clinic of national institute of diabetes to ensure adequate follow up, glycemic control and monitor any complication or side effect.
  • Patients diagnosed with Diabetic Neuropathy (by pinprick, temperature, ankle reflex, and vibration perception (128-Hz tuning fork) or pressure sensation (10 g monofilament test).
  • Glycated more than 7%

Exclusion criteria

Exclusion criteria:

  • Patients with disorders (Sjogren's syndrome, lupus, rheumatoid arthritis), inherited disorders causing peripheral neuropathy, thyroid diseases, chronic inflammatory demyelinating polyneuropathy, patients undergoing gastroplasty surgery, and cancer patients.
  • Patients have Parkinson disease or any motor movement disorders
  • Any cardiac, pulmonary, gastrointestinal, hematologic, or other endocrine disease.
  • Pressure on or injury to the nerves
  • Patients with kidney ( less than 30 ml/min) or severe liver dysfunction ( more than 3x ).
  • Patients with recent history of infection.
  • Patients with cerebral vascular disease, vasculitis, toxic neuritis, spondyloarthropathy, foot edema or ulcer and diagnosis of other neuromuscular disorders or neurodegenerative diseases.
  • Use of medications or supplements known to cause peripheral neuropathy.
  • Patients consuming alcohol, any antioxidant supplements or anti-inflammatory medicines and drug abuse.
  • Ketoacidosis or hypoglycemia resulting in hospital admission within the last 3 months.
  • Pregnancy or lactation.
  • Medical, psychological, behavioral or pharmacological factors interfering with the ability to participate in a trial.
  • Any known allergy to Trimetazidine
Terms in these criteria, in plain language(6)

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.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    trimetazidine

    Drug: Trimetazidine Dihydrochloride Tablets

  • No intervention
    control

Interventions

06

What researchers measure

Primary outcomes

  1. Endothelin-1 levels

    Time frame: at baseline assessment and at 12 weeks

Secondary outcomes

  1. DN4 score (neuropathic pain scale).

    Time frame: at baseline assessment and at 12 weeks

  2. Toronto clinical scoring systems for assessing the peripheral diabetic neuropathy severity

    Time frame: at baseline assessment and at 12 weeks

  3. Numeric rating scale for pain assessment

    Time frame: at baseline assessment and at 12 weeks

  4. side effects

    Time frame: every 4 weeks and at the end of the study at 12 weeks.

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

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 31, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07794475
Lead sponsor
Sara Refaat Azab Metry
Responsible party
Sara Refaat Azab Metry (Lecturer, Ain Shams University) — Sponsor-investigator
First posted
Aug 31, 2026
Start date
Aug 1, 2026
Primary completion
Feb 2027 (estimated)
Completion
Feb 2027 (estimated)
Last update
Aug 31, 2026

Study contacts

Lamia El Wakeel, PhD
principal investigator · Faculty of Pharmacy, Ain Shams University

Oversight

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

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

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Studies of the drug tested here: Trimetazidine

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