- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT02129309
Haemodynamic Effects of Apelin Agonists and Antagonists in Man in COPD With Raised Pulmonary Artery Pressures
Haemodynamic Effects of Apelin Agonists and Antagonists in Man in COPD With Raised Pulmonary Artery Pressures.
The investigators are interested in studying how Pulmonary Hypertension occurs. A substance called 'apelin', that naturally occurs in the body has been shown to have an important role in heart disease. Previous studies have shown that it can make blood vessels get wider, and help blood flow around the body and thus improve the way the heart and lungs work.
The investigators are looking to recruit both healthy and COPD pulmonary hypertension patients to study 3 types of apelin. The purpose of this study is to help the investigators understand how Pulmonary Hypertension occurs which may will help with the development of future treatments.
Studienübersicht
Status
Bedingungen
Intervention / Behandlung
Detaillierte Beschreibung
The purpose of this study:
To investigate the physiological role of apelin in the cardiovascular system in patients with COPD with raised pulmonary artery pressures.
Study Aim and hypotheses:
The primary objective is to test the above hypotheses using forearm blood flow and systemic infusions of apelin peptides.
Hypotheses:
- Apelin agonists are vasodilators in human resistance vessels and this effect will be altered in patients with pulmonary hypertension.
- Apelin peptides improve right ventricular and pulmonary haemodynamics in patients with elevated pulmonary artery pressures.
Study 1a - A validation dose study of 3 apelin agonists performed in healthy volunteers and COPD patients with elevated pulmonary artery pressures.
Study 1b- A validation dose study of apelin receptor antagonist, in healthy volunteers and COPD patients with elevated pulmonary artery pressures.
Study 2a - To define the haemodynamic response to apelin agonists in healthy volunteers and evaluate the response.
Study 2b - To investigate the haemodynamic response to 3 apelin agonists in COPD patients with elevated pulmonary artery pressures.
Studientyp
Einschreibung (Tatsächlich)
Phase
- Unzutreffend
Kontakte und Standorte
Studienorte
-
-
-
Cambridge, Vereinigtes Königreich, CB2 0QQ
- Vascular Research Unit, Clinical Pharmacology Unit, ACCI, Level 3, Addenbrooke's Hospital, Hills Road
-
-
Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
Inclusion Criteria:
Healthy volunteers
- Aged 18 to 70 years
- Non-smoker (<1 cigarette per week)
- If female, postmenopausal or on days 2-9 of menstrual cycle and negative pregnancy test COPD patients with estimated Pulmonary Artery Pressure (PAP) on echo >25mmHg
- Clinical diagnosis of COPD as per standard criteria
- Between 18 and 70 years
- If female, postmenopausal or on days 2-9 of menstrual cycle and negative pregnancy test
Exclusion Criteria:
pre-existing:
- Systemic Hypertension (sustained BP >160/100mmHg)
- Ischaemic Heart Disease
- Primary valvular heart disease
- Significant left ventricular failure
- Active malignancy
- Renal disease (Creatinine >180 µmol/L)
- Neurological disease
- Diabetes mellitus
- BMI >35, BMI <17
- Pregnancy
- Use of vasoactive medication or NSAIDS/aspirin within 48 hours of study.
- Current involvement in other research studies, other than observational/non-interventional
- Known HIV
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Verhütung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Single
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
|---|---|
|
Experimental: Systemic Apelin infusion
Study 2a - Haemodynamic studies to investigate the response to systemic infusions of 3 apelin agonists in healthy volunteers Study 2b - Haemodynamic studies to investigate the response to 3 apelin agonists in COPD patients with elevated pulmonary artery pressures |
Dose response study
Andere Namen:
|
|
Experimental: Apelin infusion - forearm
Study 1a - A validation dose study of 3 apelin agonists using forearm plethysmography to evaluate changes in forearm blood flow: performed in healthy volunteers and COPD patients with elevated pulmonary artery pressures. Study 1b- A validation dose study of apelin receptor antagonist using forearm plethysmography to evaluate changes in forearm blood flow, in healthy volunteers and COPD patients with elevated pulmonary artery pressures. |
Dose response study
|
Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Zeitfenster |
|---|---|
|
Percentage change in forearm blood flow in the infused arm. Forearm blood flow ratio in each arm, blood pressure and heart rate will also be reported.
Zeitfenster: 12 months
|
12 months
|
|
Cardiac output and stroke volume, pulmonary vascular resistance, mean arterial pressure and heart rate.
Zeitfenster: 12 months
|
12 months
|
Andere Ergebnismessungen
Ergebnis Maßnahme |
Zeitfenster |
|---|---|
|
Exploratory endpoints in Study 2 are systolic and diastolic blood pressure.
Zeitfenster: 12 months
|
12 months
|
Mitarbeiter und Ermittler
Ermittler
- Hauptermittler: Dr. Joseph Cheriyan, MD, Cambridge University Hospitals NHS Foundation Trust
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn
Primärer Abschluss (Tatsächlich)
Studienabschluss (Tatsächlich)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Schätzen)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Schätzen)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
- ALPHa-COPD
Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .
Klinische Studien zur Pulmonale Hypertonie
-
Xijing HospitalAnmeldung auf EinladungPropranolol | Carvedilol | Rezidivblutung bei portaler Hypertension bei LeberzirrhoseChina
-
Instituto Dante Pazzanese de CardiologiaServierRekrutierungHypertonie | Hoher Blutdruck | Apparent Resistant HypertensionBrasilien
-
Joint Shantou International Eye Center of Shantou...AbgeschlossenPrimäres Engwinkelglaukom | Akutes okuläres Hypertonie-Glaukom | Intraokuläre HypertensionChina
-
Fondazione Policlinico Universitario Agostino Gemelli...Noch keine RekrutierungPortaler Bluthochdruck | Zirrhose, Leber | Gastroösophageale Varizen | Klinisch signifikante portale Hypertension (CSPH)Italien
-
Nantes University HospitalBeendetZirrhotischer Patient mit Verdacht auf portale Hypertension und im Rahmen eines OV-ScreeningsFrankreich