- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT01879566
Effect of Catheter-based Radiofrequency Ablation Therapy in Patient With Therapy-resistant Hypertension and Sleep Apnea Syndrome
Effect of Catheter-based Radiofrequency Ablation Therapy of the Renal Sympathetic-Nerve System for Patient With Sleep Apnea Syndrome and Therapy Resistant Hypertension
Studieöversikt
Status
Betingelser
Intervention / Behandling
Studietyp
Kontakter och platser
Studieorter
-
-
ZH
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Zurich, ZH, Schweiz, 8091
- University Hospital Zurich, Division of Cardiology
-
-
Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Testmetod
Studera befolkning
Beskrivning
Inclusion criteria: We plan to include male or female subjects, age 18-80 with a diagnosis of medium-severe sleep apnea syndrome (defined by symptoms, a complaint of excessive daytime sleepiness, an Epworth sleepiness score >8, and an apnea / hypopnea index >15/h) and a resistant hypertension (systolic blood pressure >140 mmHg or >130 mmHg in patients with type II diabetes or chronic kidney disease, under treatment with three antihypertensive drugs including a diuretic).
If the selected patients are treated with CPAP, this therapy should be stable during the whole study time.
Every patient will be asked for a written informed consent.
Exclusion criteria: - Heart failure (normal ejection fractions on echocardiography and no clinical signs and symptoms of heart failure).
- Long acting nitrates, or PDE-5-Hemmer
- Alcohol or drug abuse,
- Malignancy (unless healed or remission > 5 years)
- Disease with systemic inflammation (e.g. rheumatoid arthritis, M. Crohn)
- Pulmonary Hypertension (PAP>50 mmHg)
- Pregnancy
- Anatomical contraindication to renal denervation
- Know allergy to contrast
- Participation in another study within the last month
Studieplan
Hur är studien utformad?
Designdetaljer
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
---|---|---|
Change in sympathetic nervous system activity (burst/min and burst/100 HB) before and after catheter-based radiofrequency ablation
Tidsram: 6 and 12 months
|
The primary objective of this study is to evaluate sympathetic nervous system activity in patients with sleep apnea syndrome before and 6 and 12 months after catheter-based radiofrequency ablation therapy of the renal sympathetic-nerve system
|
6 and 12 months
|
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
---|---|---|
Change in 24-hour blood pressure (24 hour, day and night mean) before and after catheter-based renal denervation
Tidsram: 1, 3, 6 12 months
|
Change in 24-hour blood pressure (24 hour, day and night mean) before and after catheter-based renal denervation
|
1, 3, 6 12 months
|
Change in renal function (creatinin plasma level and GFR CKD-EPI Formula) before and after catheter-based renal denervation
Tidsram: 1, 3, 6, 12
|
Change in creatinin plasma level and GFR CKD-EPI Formula before and after catheter-based renal denervation
|
1, 3, 6, 12
|
Change in sleep quality, pulse-oximetry, AHI, quality of life and subjective sleepiness with the Epworth sleepiness score before after catheter-based renal denervation
Tidsram: 1, 3, 6 and 12 months
|
1, 3, 6 and 12 months
|
|
Change in 24-hour Holter and heart rate variability, echocardiogramm before and after catheter-based renal denervation
Tidsram: 6 and 12 months
|
6 and 12 months
|
|
Change in vascular function and oxidative stress and inflammation parameters before and after catheter-based renal denervation
Tidsram: 1, 3, 6, and 12 months
|
Change in vascular function (endothelial function as flow mediated dilatation, arterial stiffness by pulse wave velocity) and oxidative stress and inflammation parameters before and after catheter-based renal denervation
|
1, 3, 6, and 12 months
|
Samarbetspartners och utredare
Sponsor
Utredare
- Huvudutredare: Thomas Luescher, Professor, MD, University Hospital Zurich, Division of Cardiology
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Förväntat)
Avslutad studie (Förväntat)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- EK2012_0393
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