Sympathetic Mapping/ Ablation of Renal Nerves Trial (SMART) HTN-OFF MED Study
SMART OFF-MED
A Prospective, Multicenter, Blind, Randomized and Controlled Trial of Selected Renal Denervation by Renal Nerve Mapping for the Treatment of Hypertension (HTN) in the Absence of Antihypertensive Medications (OFF MED)
1 other identifier
interventional
80
1 country
1
Brief Summary
To evaluate the efficacy and safety of selected renal sympathetic denervation using SyMapCath I™ Catheter and SYMPIONEER S1™ Stimulator/Generator in patients with hypertension in the absence of antihypertensive medications, or till the negative result was given by urinary antihypertensive drugs detection of high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) after at least two weeks of drug elution period. Then Office systolic blood pressure (SBP) is still ≥ 150mmHg, \< 180mmHg, diastolic blood pressure (DBP) ≥ 90mmHg, and 24-hour mean SBP of ambulatory blood pressure measurement (ABPM) is ≥130mmHg, or day-time mean SBP ≥135mmHg, or night-time mean SBP ≥120mmHg, and all SBP of ABMP record \<170mmHg. After then the patient will be included when the results of bilateral renal angiography meet the requirements of renal nerve stimulation, mapping and denervation conditions.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Jun 2019
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 20, 2019
CompletedFirst Posted
Study publicly available on registry
March 22, 2019
CompletedStudy Start
First participant enrolled
June 1, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2020
CompletedMarch 25, 2019
March 1, 2019
7 months
March 20, 2019
March 22, 2019
Conditions
Outcome Measures
Primary Outcomes (1)
Change in office systolic blood pressure
3 months after the treatment
Secondary Outcomes (10)
Change in average 24-hour Ambulatory Blood Pressure Monitoring (ABPM) systolic blood pressure (SBP)
3 months
Change in average day-time ABPM SBP
3 months
Change in average night-time ABPM SBP
3 months
Change in office diastolic blood pressure (DBP)
3 months
Change in mean arterial blood pressure
3 months
- +5 more secondary outcomes
Study Arms (2)
RDN Group
EXPERIMENTALrenal nerve stimulation, mapping and denervation using the SyMapCath I™ Catheter and SYMPIONEER S1™ Stimulator/Generator after renal angiography.
Sham Group
SHAM COMPARATORrenal artery angiography group, without any renal nerve stimulation, mapping or denervation
Interventions
After a renal angiography according to standard procedures, subjects remain blinded and are immediately treated with the renal nerve stimulation, mapping and denervation procedure after randomization.
After a renal angiography according to standard procedures, subjects remain blinded and remain on the catheterization lab table for at least 20 minutes prior to introducer sheath removal
Eligibility Criteria
You may qualify if:
- Male and non-pregnant female subjects, 18≤age≤65
- Essential hypertension
- Office SBP ≥150mmHg and \< 180mmHg; and DBP ≥90mmHg
- Average 24-hour ABPM systolic blood pressure is ≥130mmHg, or day-time mean SBP ≥135mmHg, or night-time mean SBP ≥120mmHg, and all SBP of ABMP record \<170mmHg
- HPLC-MS/MS urinary antihypertensive drugs detection shows negative result after at least two weeks of drug elution period, or one extra week of drug elution period will be given for the second urinary drugs analysis; and the urinary drugs detection can be given in screening date for the subjects without antihypertensive history
- Renal arteries meet the criteria of renal nerve stimulation, mapping and denervation; and at least one positive-response point occurs in each renal artery
- Patient understands the purpose of this study, and is willing to participate and sign the Informed Consent
- Patient is compliant and willing to complete clinical follow-up.
You may not qualify if:
- \. Renal artery anatomy is unqualified including:
- Diameter \<3.5mm or treatable length \<25mm;
- Multiple renal arteries and the main renal artery supplies a fraction of the blood flow less than 75%
- Renal artery stenosis \>50% or any renal artery aneurysms on either side
- History of renal artery percutaneous transluminal angioplasty (PTA), including balloon angioplasty and stenting 2. eGFR \<45ml/min/1.73m2 (MDRD formula) 3. Hospitalized within one year due to hypertensive crisis 4. Pulse pressure\>80mmHg, or isolated systolic hypertension 5. During running in period, using any antihypertensive drugs without prescription and urinary drugs test shows positive.
- \. Participated other clinical trials including both drug and medical device studies within 3 months enrollment 7. Female with pregnant or lactating, or having plans for pregnancy within 1 year 8. Patient with sleep apnea who needs chronic oxygen-breathing or mechanical ventilation support (for example, tracheostomy) 9. Patients previously or currently suffering from following diseases:
- Essential pulmonary arterial hypertension
- Type I diabetes
- Severe cardiac valvular stenosis with contradictions to significantly reduce blood pressure
- History of myocardial infraction (MI), unstable angina, syncope or cerebrovascular accidents within half year.
- History of primary aldosteronism, pheochromocytoma, aorta stenosis, hyperthyroidism or hyperparathyroidism
- Any disease conditions interfering the measurement of blood pressure (for instance, severe peripheral artery diseases, abdominal artery aneurysm, hemorrhagic disorders such as thrombocytopenia, hemophilia and severe anemia)
- Plans to have surgery or cardiovascular interventions within following 6 months
- Alcohol abuse or unknown drug dependence history
- Neuroticisms such as depression or anxiety disorders
- +1 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
2ndChongqingMU
Chongqing, Chongqing Municipality, 400010, China
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Director of the Department
Study Record Dates
First Submitted
March 20, 2019
First Posted
March 22, 2019
Study Start
June 1, 2019
Primary Completion
January 1, 2020
Study Completion
April 1, 2020
Last Updated
March 25, 2019
Record last verified: 2019-03