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Streamlined Denervation With spYral For an Optimized Treatment (SPYRAL SWYFT) in Subjects With Uncontrolled Hypertension

Sub-study of SPYRAL AFFIRM: Streamlined Denervation With spYral For an Optimized Treatment (SPYRAL SWYFT)

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07115953
Acronym
SWYFT
Enrollment
130
Registered
2025-08-11
Start date
2025-09-22
Completion date
2029-12-31
Last updated
2026-06-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cardiovascular Diseases, Chronic Kidney Diseases, Diabetes Mellitus, Hypertension, Vascular Diseases

Brief summary

The purpose of the SPYRAL SWYFT sub-study is to evaluate whether renal denervation with the Symplicity Spyral system performed in the main and first order branch renal arteries yields a shorter procedure time and is as effective in reducing blood pressure than the procedural approach used in the SPYRAL HTN-ON MED and SPYRAL PIVOTAL - SPYRAL HTN-OFF MED clinical studies in an uncontrolled hypertensive population.

Detailed description

SPYRAL SWYFT will evaluate the long-term safety, efficacy, and durability of the Symplicity Spyral system to determine whether renal denervation performed in the main and first order branch renal arteries yields a shorter procedure time and is as effective in reducing blood pressure than the procedural approach used in the SPYRAL HTN-ON MED and SPYRAL PIVOTAL - SPYRAL HTN-OFF MED clinical studies (where all accessible renal arterial vessels between 3 and 8 mm in diameter including accessory, branch and main renal arteries (outside the kidney parenchyma) were targeted for ablation). SPYRAL SWYFT study is conducted under the overarching SPYRAL AFFIRM protocol (NCT05198674), focused on EU and APAC regions.

Interventions

After a renal angiography according to standard procedures, subjects are treated with the renal denervation procedure.

Sponsors

Medtronic Vascular
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Individual is diagnosed with hypertension and has a baseline office systolic blood pressure ≥140 mmHg 2. Individual has a baseline office diastolic blood pressure ≥ 90 mmHg 3. Individual has an average systolic baseline home blood pressure ≥135 mmHg (with ≥7 days of valid pre-procedure measurements) 4. Individual has a valid 24-hour Ambulatory Blood Pressure Measurement at baseline

Exclusion criteria

1. Individual lacks appropriate renal artery anatomy 2. Individual has undergone prior renal denervation 3. Individual has a documented condition that would prohibit or interfere with ability to obtain an accurate blood pressure measurement 4. Individual requires chronic oxygen support or mechanical ventilation other than nocturnal respiratory support for sleep apnea 5. Individual has an estimated glomerular filtration rate (eGFR) of \<45 mL/min/1.73m2 6. Individual has one or more episode(s) of orthostatic hypotension 7. Individual is pregnant, nursing or planning to become pregnant 8. Individual has documented primary pulmonary hypertension 9. Individual has documented type 1 diabetes mellitus or poorly-controlled type 2 diabetes mellitus with glycosylated hemoglobin greater than 8.0%

Design outcomes

Primary

MeasureTime frameDescription
Procedure timeProcedureProcedure time will be compared to the SPYRAL HTN-ON MED and SPYRAL PIVOTAL - SPYRAL HTN-OFF MED procedure times.
Office Systolic Blood Pressure Change6 monthsOffice Systolic Blood Pressure (OSBP) change from baseline to 6 months will be compared to the SPYRAL HTN-ON MED and SPYRAL PIVOTAL - SPYRAL HTN-OFF MED study efficacy endpoints using a propensity score stratified baseline blood pressure adjusted analysis at 3 months (OFF MED) and 6 months (ON MED).

Secondary

MeasureTime frame
Office Systolic Blood Pressure changeFrom baseline to 3, 6, 12, 24, and 36 months post-procedure
Home Blood Pressure changeFrom baseline to 3, 6, 12, 24, and 36 months post-procedure
Change in blood pressure as measured by 24-hour ABPMFrom baseline to 3, 6, 12, 24, and 36 months post-procedure
Percent of subjects achieving blood pressure control as measured by OBP, HBP and ABPMFrom baseline to 3, 6, 12, 24, and 36 months post-procedure
Time subject's blood pressure is controlledProcedure to 36 months post-procedure
Change in number of anti-hypertensive medications taken from baselineFrom baseline to 3, 6, 12, 24, and 36 months post-procedure
Change from baseline in hypertension health status scoreFrom baseline to 3, 6, 12, 24, and 36 months post-procedure. A higher score means a better outcome.
Evaluate factors influencing blood pressure response to renal denervationFrom baseline to 3, 6, 12, 24, and 36 months post-procedure
Evaluation of slope of eGFRFrom baseline to 3, 6, 12, 24, and 36 months post-procedure
Incidence of safety events, including major adverse eventsFrom baseline to 3, 6, 12, 24, and 36 months post-procedure

Countries

Australia, Belgium, Germany, Greece, Ireland, Malaysia, Netherlands, Taiwan, United Kingdom

Contacts

CONTACTKelsey Anderson
rs.spyralaffirm@medtronic.com651 247 5268
CONTACTCarly Loudoun
rs.spyralaffirm@medtronic.com+31 43 356 6566
PRINCIPAL_INVESTIGATORDavid Lee, MD

Stanford University

PRINCIPAL_INVESTIGATORKonstantinos Tsioufis, Prof Dr

Hippokration General Hospital of Athens

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 1, 2026