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NCT Number: NCT07339098

Efficacy and Safety of the Ultrasound Stimulation Device NEFRONIX in Patients With Chronic Kidney Disease

This study is a prospective, multicenter, single-arm, open-label, non-randomized exploratory clinical trial designed to evaluate the safety and potential efficacy of an ultrasound stimulation device (NEFRONIX G-01) in patients with chronic kidney disease (CKD). Baseline functional assessments will be performed prior to intervention. Participants will receive ultrasound stimulation applied to the kidneys three times per week for four weeks according to the study protocol. Clinical evaluations will be conducted at baseline, at the end of treatment, and 12 weeks after completion of treatment. Renal function will be assessed using changes in estimated glomerular filtration rate based on serum creatinine (CKD-EPI eGFR Cr) and cystatin C (CKD-EPI eGFR CysC). Additional assessments will include imaging studies (Tc-99m DTPA renal scintigraphy and renal ultrasonography), urinalysis for proteinuria, inflammatory markers (high-sensitivity C-reactive protein), and renal injury biomarkers (neutrophil gelatinase-associated lipocalin).

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Key information

Conditions

Chronic Kidney Disease Chronic Disease Disease Attributes Female Urogenital Diseases Female Urogenital Diseases and Pregnancy Complications Kidney Diseases Male Urogenital Diseases Pathologic Processes Pathological Conditions, Signs and Symptoms Renal Insufficiency Renal Insufficiency, Chronic Urogenital Diseases Urologic Diseases

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Participants who have received sufficient explanation of the study and have voluntarily provided written informed consent.
  • Male and female adults aged 18 to 65 years at the time of consent.
  • Participants with chronic kidney disease, defined as an estimated glomerular filtration rate (eGFR) between 20 and 60 mL/min/1.73 m².
  • Participants who agree to use and maintain appropriate contraception throughout the study period.

Exclusion criteria

  • Participants currently enrolled in another clinical study with an ongoing follow-up period.
  • Participants with heart failure.
  • Participants who have undergone reperfusion therapy for cardiovascular disease within the past year.
  • Participants with platelet or coagulation disorders, including those receiving antithrombotic therapy.
  • Participants with acute or chronic urinary tract infection.
  • Participants with polycystic kidneys.
  • Participants with anatomical kidney abnormalities (e.g., solitary kidney, horseshoe kidney, polycystic kidney disease) as determined by the investigator.
  • Participants with urinary tract obstruction.
  • Participants who have received a kidney transplant.
  • Participants with kidney or urinary tract stones.
  • Participants who have experienced acute kidney injury or changes in CKD stage within the past 3 months.
  • Participants with serum albumin <3.0 g/dL and either 24-hour proteinuria ≥3.0 g/day or random urine protein/creatinine ratio ≥3.0 mg/mg.
  • Participants with uncontrolled hypertension (systolic blood pressure >150 mmHg or diastolic blood pressure >100 mmHg despite treatment with two or more antihypertensive medications).
  • Participants with liver dysfunction.
  • Participants receiving immunosuppressive therapy.
  • Participants with body mass index (BMI) >35 kg/m² or body weight <40 kg.
  • Participants with a history of severe illness, such as cancer or tuberculosis.
  • Participants with contact dermatitis or other significant skin sensitivities.
  • Participants with fever ≥40°C (104°F) measured via tympanic temperature.
  • Participants deemed unsuitable for participation in the study by the investigator for any other reason.

Treatment and study plan

Ultrasound Stimulation (NEFRONIX G-01)

Device

Ultrasound stimulation will be delivered to the renal area using the NEFRONIX G-01 device. The intervention will be administered three times per week for four weeks in accordance with the study protocol. Standard clinical management for chronic kidney disease will be continued during the study period.

Primary outcomes

  1. Change in Glomerular Filtration Rate Estimated by Serum Creatinine (eGFR-EPI Cr)

    Time frame: Baseline to after 4 weeks of application of the investigational medical device

    The primary outcome is the change in glomerular filtration rate estimated using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation based on serum creatinine (eGFR-EPI Cr) from baseline to after 4 weeks of application of the investigational medical device.

Secondary outcomes

  1. Change in Glomerular Filtration Rate Estimated by Serum Creatinine (eGFR-EPI Cr)

    Time frame: Baseline to 12 weeks after application of the investigational medical device

  2. Change in Glomerular Filtration Rate Estimated by Cystatin C (eGFR-EPI CysC)

    Time frame: Baseline to after 4 weeks of application of the investigational medical device

  3. Change in Glomerular Filtration Rate Estimated by Cystatin C (eGFR-EPI CysC)

    Time frame: Baseline to 12 weeks after application of the investigational medical device

  4. Change From Baseline in Urinary Protein Excretion

    Time frame: Baseline to after 4 weeks of application of the investigational medical device

  5. Change From Baseline in Urinary Protein Excretion

    Time frame: Baseline to 12 weeks after application of the investigational medical device

  6. Change From Baseline in Serum High-Sensitivity C-Reactive Protein (hsCRP) Concentration

    Time frame: Baseline to after 4 weeks of application of the investigational medical device

  7. Change From Baseline in Serum High-Sensitivity C-Reactive Protein (hsCRP) Concentration

    Time frame: Baseline to 12 weeks after application of the investigational medical device

  8. Change From Baseline in Renal Resistive Index Assessed by Doppler Ultrasonography

    Time frame: Baseline to after 4 weeks of application of the investigational medical device

  9. Change From Baseline in Renal Resistive Index Assessed by Doppler Ultrasonography

    Time frame: Baseline to 12 weeks after application of the investigational medical device

  10. Change From Baseline in Serum Neutrophil Gelatinase-Associated Lipocalin (NGAL) Concentration

    Time frame: Baseline to after 4 weeks of application of the investigational medical device

  11. Change From Baseline in Serum Neutrophil Gelatinase-Associated Lipocalin (NGAL) Concentration

    Time frame: Baseline to 12 weeks after application of the investigational medical device

  12. Change in Renal Function Assessed by Tc-99m DTPA Renal Scintigraphy

    Time frame: Baseline to after 4 weeks of application of the investigational medical device

  13. Change in Renal Function Assessed by Tc-99m DTPA Renal Scintigraphy

    Time frame: Baseline to 12 weeks after application of the investigational medical device

Study contacts

Contact information is provided by the study sponsor or research team.

SungKyung Lee

CONTACT

[email protected]

82+10-9877-8173

Sponsors and collaborators

Lead sponsor

Anasonic

Industry

Registry information

Official study title

A Prospective, Multicenter, Single-arm, Open-label, Non-randomized Exploratory Clinical Trial to Evaluate the Efficacy and Safety of Glomerular Filtration Rate (GFR-EPI) Using NEFRONIX in Patients With Chronic Kidney Disease (CKD)

Important dates

Study start
2026
Primary completion
2027
Study completion
2027
First posted
Jan 14, 2026
Registry last updated
Jan 15, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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