SPYRAL DYSTAL Renal Denervation Global Clinical Study

Trial ID or NCT#



not recruiting iconNOT RECRUITING


The objective of this single arm interventional study is to determine if renal denervation performed in the distal main and first order branch renal arteries is as effective in reducing blood pressure as the procedural approach used in the SPYRAL HTN-OFF MED clinical study.

Official Title

Global Clinical Study of Renal Denervation in the Distal Main and First Order Branch Renal Arteries Using the Symplicity Spyral™ Multi-electrode Renal Denervation System (SPYRAL DYSTAL)

Eligibility Criteria

Ages Eligible for Study: 20 Years to 80 Years
Sexes Eligible for Study: All
Accepts Healthy Volunteers: No
Inclusion Criteria:
  1. - Individual has office systolic blood pressure (SBP) ≥ 150 mmHg and <180 mmHg and a diastolic blood pressure (DBP) ≥ 90 mmHg after being off medications. - Individual has 24-hour Ambulatory Blood Pressure Monitoring (ABPM) average SBP ≥ 140 mmHg and < 170 mmHg. - Individual is willing to discontinue current antihypertensive medications
Exclusion Criteria:
  1. - Individual has estimated glomerular filtration rate (eGFR) of <45. - Individual has type 1 diabetes mellitus or poorly-controlled type 2 diabetes mellitus. - Individual has one or more episodes of orthostatic hypotension. - Individual requires chronic oxygen support or mechanical ventilation other than nocturnal respiratory support for sleep apnea. - Individual has primary pulmonary hypertension. - Individual is pregnant, nursing or planning to become pregnant. - Individual has frequent intermittent or chronic pain that results in treatment with nonsteroidal anti-inflammatory drugs (NSAIDs) for two or more days per week over the month prior to enrollment. - Individual has stable or unstable angina within 3 months of enrollment, myocardial infarction within 3 months of enrollment; heart failure, cerebrovascular accident or transient ischemic attack, or atrial fibrillation at any time. - Individual works night shifts.


David Lee, MD
David Lee, MD
Cardiologist, Interventional cardiologist
Professor of Medicine (Cardiovascular Medicine)

Contact us to find out if this trial is right for you.


David P Lee, MD