Endothelin Receptor Antagonism in Proteinuric Nephropathy
The Systemic & Renal Effects of Endothelin Receptor Antagonism in Proteinuric Nephropathy
調査の概要
状態
詳細な説明
Response to ETA Receptor Antagonism/Nifedipine/Placebo Prior to the study visit subjects will be asked to refrain from alcohol for 24 hours. Tea and coffee will not be permitted for at least 12 hours before each visit. Studies will be conducted in a quiet, temperature-controlled room.
On arrival at the Clinical Research Centre on the study day, a brief medical enquiry and examination will confirm the ongoing suitability of the subject for the study. An intravenous cannula will be inserted into the antecubital fossa of each arm. We have developed a basic protocol described fully in our previous studies that allows us to measure systemic haemodynamics by the well validated technique of bioimpedance and renal function by standard para-aminohippurate (PAH; renal blood flow) and inulin (glomerular filtration rate) clearance studies.
Urinary protein excretion will be measured by collecting urine over 30 minute time periods. To ascertain the contribution of renal haemodynamics to any change in protein excretion renal blood flow and glomerular filtration rate will be measured. In addition, blood and urine will also be assayed for sodium, creatinine and osmolality to allow calculation of fractional excretion of sodium and free water clearance.
Systemic haemodynamic monitoring will be performed at 15 minute intervals during drug/placebo administration and at 30 minute intervals outwith these periods.
研究の種類
入学 (実際)
段階
- フェーズ 1
連絡先と場所
研究場所
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Scotland
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Edinburgh、Scotland、イギリス、EH4 2XU
- Clinical Research Centre, Western General Hospital
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Male or female
- Age 18-70
- Body mass index <35
- Blood pressure <160/110 mmHg
- CKD stage 2-5 as per the K/DOQI classification
- Proteinuria in one of the following categories: 0.3-1.5, >1.5-3.0, and >3.0-6.0 g/24hrs
- Normal serum albumin
Exclusion Criteria:
- Subject is below the age of legal consent, or is mentally or legally incapacitated
- History of multiple and/or severe allergic reactions to drugs (including study drugs), or food
- The subject has donated blood (450 ml) within the last 4 weeks
- Past or present drug or alcohol abuse including intravenous drug abuse at any time
- Participation in another clinical trial within 1 month
- Considered to be at high risk of HIV or hepatitis B
- Pregnant
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:基礎科学
- 割り当て:ランダム化
- 介入モデル:クロスオーバー割り当て
- マスキング:トリプル
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
プラセボコンパレーター:1
Placebo control arm of study
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Single 15ml 0.9% saline infused for 15 mins as placebo control
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|
実験的:2
BQ-123 arm of study
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Single dose of BQ-123 given at a dose of 1000 nmol/min for 15 min intravenously.
|
|
アクティブコンパレータ:3
Nifedipine arm of study
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Single dose of nifedipine 10 mg given orally as active control
他の名前:
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この研究は何を測定していますか?
主要な結果の測定
結果測定 |
時間枠 |
|---|---|
|
Proteinuria
時間枠:Acute change in proteinuria over 4 hour period following BQ-123 dosing
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Acute change in proteinuria over 4 hour period following BQ-123 dosing
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|
Blood pressure
時間枠:Acute change in blood pressure over 4 hour period following BQ-123 dosing
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Acute change in blood pressure over 4 hour period following BQ-123 dosing
|
二次結果の測定
結果測定 |
時間枠 |
|---|---|
|
Arterial stiffness (as measured by pulse wave velocity)
時間枠:Acute change in arterial stiffness over 4 hour period following BQ-123 dosing
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Acute change in arterial stiffness over 4 hour period following BQ-123 dosing
|
|
Endothelial function (as measured by flow-mediated dilatation)
時間枠:Acute change in endothelial function over 4 hour period following BQ-123 dosing
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Acute change in endothelial function over 4 hour period following BQ-123 dosing
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協力者と研究者
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
- 2006/WCRC/02
- PG/05/91
- 06/MRE00/12
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