- ICH GCP
- Registre américain des essais cliniques
- Essai clinique 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
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Type d'étude
Contacts et emplacements
Lieux d'étude
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ZH
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Zurich, ZH, Suisse, 8091
- University Hospital Zurich, Division of Cardiology
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
Méthode d'échantillonnage
Population étudiée
La description
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
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
---|---|---|
Change in sympathetic nervous system activity (burst/min and burst/100 HB) before and after catheter-based radiofrequency ablation
Délai: 6 and 12 months
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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
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6 and 12 months
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
---|---|---|
Change in 24-hour blood pressure (24 hour, day and night mean) before and after catheter-based renal denervation
Délai: 1, 3, 6 12 months
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Change in 24-hour blood pressure (24 hour, day and night mean) before and after catheter-based renal denervation
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1, 3, 6 12 months
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Change in renal function (creatinin plasma level and GFR CKD-EPI Formula) before and after catheter-based renal denervation
Délai: 1, 3, 6, 12
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Change in creatinin plasma level and GFR CKD-EPI Formula before and after catheter-based renal denervation
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1, 3, 6, 12
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Change in sleep quality, pulse-oximetry, AHI, quality of life and subjective sleepiness with the Epworth sleepiness score before after catheter-based renal denervation
Délai: 1, 3, 6 and 12 months
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1, 3, 6 and 12 months
|
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Change in 24-hour Holter and heart rate variability, echocardiogramm before and after catheter-based renal denervation
Délai: 6 and 12 months
|
6 and 12 months
|
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Change in vascular function and oxidative stress and inflammation parameters before and after catheter-based renal denervation
Délai: 1, 3, 6, and 12 months
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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
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1, 3, 6, and 12 months
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Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Thomas Luescher, Professor, MD, University Hospital Zurich, Division of Cardiology
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Anticipé)
Achèvement de l'étude (Anticipé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- EK2012_0393
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