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RecruitingNCT05363761NECTAR IIIUpdated Mar 21, 2023

Arterial Ablation for the Treatment of Type 2 Diabetes Mellitus and Its Comorbidities

A Phase 1 interventional study of Neurotronic Infusion Catheter in Diabetes Mellitus, Type 2 and Hypertension, sponsored by Neurotronic, Inc.. Recruiting at 3 sites in 2 countries. Open to participants aged 21 Years to 65 Years. Per ClinicalTrials.gov, last updated 2023-03-21.

Sponsored by Neurotronic, Inc. · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jan 2025, 1 year 10 months ago, but the record still lists the study as recruiting.
  • Started Apr 2022; still recruiting 4 years 6 months later.
Phase
Phase 1
Study type
Interventional
Enrollment
50
Allocation
Not applicable
Ages
21 Years to 65 Years
Sex
All
01

Study summary

This study is assess the safety and performance of the Neurotronic Infusion catheter for treatment of patients with Type 2 Diabetes (T2DM) and hypertension.

Read the detailed description

This study is a prospective, single-arm, multi-center trial to evaluate the safety and performance of use of the Neurotronic Infusion Catheter for chemical denervation of renal and hepatic arteries for treatment of patients with type 2 diabetes, hypertension, and obesity.

02

Conditions studied

  • Diabetes Mellitus, Type 2
  • Hypertension

Keywords

  • Diabetes, Hypertension, Ablation, Denervation
03

In context

Diabetes Mellitus, Type 2

10,371 studies on the registry are indexed under Diabetes Mellitus, Type 2; 1,406 are open to participants now.

This study's planned enrollment of 50 is below the median of 80 across 8,350 interventional studies indexed under Diabetes Mellitus, Type 2.

Browse Diabetes Mellitus, Type 2 studies →

Lead sponsor

Neurotronic, Inc. is the lead sponsor of 4 studies on the registry; 2 are open to participants now.

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

04

Who can participate

Ages eligible
21 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

Subjects must meet all of the following criteria to be eligible for participation in the study:

  1. Age ≥ 21 and ≤ 65 years at time of enrollment.
  2. Disease diagnosed

    2.1 Diagnosed with T2DM with baseline:

    1. Fasting plasma glucose ≥ 140 mg/dl (7.8 mmol/l) and ≤ 270 mg/dL (15 mmol/L)
    2. levels ≥ 7.0% and ≤ 9.0% (53-75 mmol/mol)
    3. Triglyceride level \< 400 mg/dL (4.52 mmol/L)
    4. On oral anti-hyperglycemic drug regimen of metformin. Subjects may be on additional oral anti-hyperglycemic drug of a different drug class
    5. Years of T2DM ≤ 10 years

    And / Or

    2.2 Diagnosed hypertension with baseline:

    1. Office blood pressure of SBP of ≥ 140 mmHg and ≤ 180 mmHg and DBP ≥ 90 mmHg
    2. Mean 24-hour ambulatory SBP of ≥ 130 mmHg and ≤ 170 mmHg with ≥ 75% valid readings
    3. On stable oral anti-hypertension drug regimen consisting of up to a maximum of three drugs
  3. between 27.5 and 40 kg/m2
  4. C-peptide testing: non-fasting random or stimulated C-peptide ≥ 2 ng/mL (660 pmol/L)
  5. Vessel diameter of 3 mm to 7 mm with a minimum arterial treatable length of 20 mm in one or more of the following arteries:

    • Renal
    • Hepatic

Exclusion criteria

Exclusion Criteria:

  1. T1DM or poorly controlled T2DM (defined as > 9.0% or use insulin as medication to control glucose level).
  2. Office diastolic blood pressure \< 90 mmHg.
  3. Current use of > 3 hypertension medications.
  4. Currently on beta blockers.
  5. One or more documented hyperglycemia episodes requiring hospitalization in the 180-day prior to screening date.
  6. Prior evidence of hypoglycemia unawareness or serious hypoglycemia with loss of consciousness or confusion sufficient to prevent self-treatment in last 6 months.
  7. > 40 kg/m2.
  8. Diagnosed proliferative retinopathy or evidence of peripheral neuropathy.
  9. Lack of appropriate treatment site or anatomy precluding the intervention of the target arteries (renal and hepatic artery).
  10. History of prior renal or hepatic artery intervention including balloon angioplasty, stenting, etc.
  11. Arterial stenosis >50% of the normal diameter segment (diameter stenosis, compared to the angiographically normal proximal or distal segment).
  12. Any abnormality or disease in one or more of the target arteries that, per the physician assessment, precludes the safe insertion of the guiding catheter (including, but not limited to, artery aneurysm, excessive tortuosity, calcification).
  13. Occlusive peripheral vascular disease that would preclude percutaneous femoral access for the procedure.
  14. Known or suspected secondary hypertension, such as Cushing's disease or Cushing's Syndrome, hyperaldosteronism, pheochromocytoma, thyroid and parathyroid abnormalities, history of pre-eclampsia, onset of hypertension prior to the age of 18.
  15. Use of nonsteroidal anti-inflammatory drugs (NSAIDs) for two or more days per week over the month prior to enrollment.
  16. Severe or unstable cardiovascular comorbidities, such as AMI or ACS, cardiac valve stenosis, pulmonary embolism, heart failure with Class III or IV, chronic atrial fibrillation, primary pulmonary hypertension, .
  17. Renal transplant, history of nephrectomy or single kidney, renal tumor/cancer, known non-functioning kidney, unequal renal size (>2 cm difference in renal length between kidneys associated with a chronic kidney disease or a deterioration of the kidney function), chronic renal deficiency with ≤ 60ml/min/1.73m2, or on chronic renal replacement therapy.
  18. Prior liver transplant.
  19. Any organ transplantation procedures are planned in the 365 days following Index Procedure.
  20. Gastrointestinal permanent anatomic alteration surgery.
  21. Any surgical procedure within 30 days prior to Index Procedure.
  22. Currently taking the following medications within 90 days prior to screening and/or there is a need or anticipated need for these medications during the study:

    1. Systemic
    2. Anticonvulsants
    3. Centrally acting sympatholytics
  23. Bleeding disorders, such as bleeding diathesis, thrombocytopenia, and severe anemia.
  24. Use of anticoagulation therapy which cannot be discontinued from 7 days before or 14 days after the Index Procedure.
  25. Any other condition(s) that would compromise the safety of the Subject or compromise study quality as judged by the investigator.
  26. Significant alcohol consumption, defined as more than 2 drink units per day (equivalent to 20 g) in women and 3 drink units per day (equivalent to 30 g) in men, or inability to reliably quantify alcohol intake.
  27. Active substance abuse, based on Investigator judgement, including inhaled or injected drugs, within 1 year prior to the initial screening.
  28. Significant weight loss within the last 6 months (e.g., > 10% total body weight loss).
  29. Hepatic decompensation defined as the presence of any of the following:

    1. Serum albumin less than 3.5 g/dL
    2. International normalization ratio () greater than 1.4 (unless due to therapeutic anticoagulants)
    3. Total greater than 2 mg/dL with the exception of Gilbert syndrome
    4. History of esophageal varices, ascites, or hepatic encephalopathy
  30. or AST greater than 200 U/L.
  31. Diagnosis of liver cirrhosis.
  32. Chronic liver or biliary disease of the following etiology:

    1. History or diagnosis of
    2. History or diagnosis of
    3. History or diagnosis of current active hepatitis
    4. History or diagnosis of primary biliary cholangitis
    5. History or diagnosis of primary sclerosing cholangitis
    6. History or diagnosis of Wilson's disease
    7. History or diagnosis of alpha-1-antitrypsin deficiency
    8. History or diagnosis of hemochromatosis
    9. History or diagnosis of drug-induced liver disease, as defined on the basis of typical exposure and history.
    10. Known bile duct obstruction.
    11. Suspected or proven liver cancer
  33. History of acute or chronic pancreatitis.
  34. (HIV).
  35. Subjects with a history of adverse reaction to heparin or heparin induced thrombocytopenia (HIT).
  36. Systemic infection that the investigator judges would pose unacceptable procedural risks to the subject.
  37. Known to contrast media, nickel and ethanol that cannot be adequately pre-medicated.
  38. Subject is depressed or on antidepressants.
  39. Pregnancy or breastfeeding or plan to get pregnant in next 12 months.
  40. of less than 5 years.
  41. Unwilling or unable to comply with the follow-up study requirements.
  42. Subjects or their legally authorized representatives unable to provide .
  43. Concurrent medical condition that would affect the investigator's ability to evaluate the patient's condition or could compromise patient safety.
  44. Currently participation in another pre-market drug or medical device clinical study.
Terms in these criteria, in plain language(16)

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.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

COPD

Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.

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.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

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.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

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.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
50 participants (estimated)

Study arms

  • Experimental
    Ablation Treatment

    Neurotronic Infusion Catheter Treatment

    Combination Product: Neurotronic Infusion Catheter

Interventions

  • Combination productNeurotronic Infusion Catheter

    Denervation of renal and common hepatic arteries by ethanol ablation with the Neurotronic Infusion Catheter

06

What researchers measure

Primary outcomes

  1. Incidence of serious device- and procedure-related complications at 30 days post procedure.

    This composite endpoint is defined as: * death * flow-limiting dissection at one or more of the treated arteries requiring intervention. * Type III perforation of the treated artery requiring intervention. * bleeding requiring transfusion. * severe or occlusive thrombosis of the treated artery beds * clinically significant distal embolization of the treated artery beds * clinically significant damage to kidneys and/or liver

    Time frame: 30 Days

  2. Device success

    The device success, defined as successful introduction of the catheter, navigation to the treatment site, and infusion of the chemical to the perivascular without device malfunction that requiring aborting the procedure.

    Time frame: During the procedure

Secondary outcomes

  1. Glycemic Control:

    Change of fasting glucose and HbA1c will be analyzed by absolute and relative changes. Percent subjects with decreased fasting glucose and HbA1c will also be analyzed.

    Time frame: 1 month, 3 months, 6 months, 12 months, and 24 months. Optional 3, 4 and 5 years to understand the long-term effects of the treatment.

  2. Hypertension Control:

    Change of blood pressure will be analyzed by systolic, diastolic, and mean arterial pressure, absolute and relative changes of ABPM and office blood pressure. Percent subjects with decrease blood pressure will also be analyzed.

    Time frame: 1 month, 3 months, 6 months, 12 months, and 24 months. Optional 3, 4 and 5 years

07

Study locations

3 of 3 sites recruiting
  • Hospital Paitilla Clinicas y Hospitales
    Panamá, 0816-03075, Panama
    Recruiting
    • Guadalupe Perez, MD · Contact
  • Hospital Punta Pacifica
    Panamá, Panama
    Recruiting
    • Guadalupe Pérez · Contact
  • Sanatorio Adventista de Asunción
    Asunción, Paraguay
    Recruiting
    • Rubén G Servían Campos, MD · Contact
    • Oscar L Paredes Gonzalez, MD, PhD · Contact
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 21, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT05363761
Lead sponsor
Neurotronic, Inc.
Collaborators
Libra Medical
Responsible party
Sponsor
First posted
May 6, 2022
Start date
Apr 19, 2022
Primary completion
Jan 2025 (estimated)
Completion
Jan 2029 (estimated)
Last update
Mar 21, 2023

Study contacts

Yunlong Zhang, MD
Contact
pzhang@libramed.com
+1 669-203-9308
John Chen, PhD
Contact
chenj@neurotronic.com
+1 763-273-6100
John Chen, PhD
study director · Neurotronic, Inc.

Oversight

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

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