A Clinical Trial for People HIV+ Age > 50 at Risk for Heart Disease
Telmisartan and Flow-Mediated Dilatation in Older HIV-Infected Patients at Risk for Cardiovascular Disease
This research study is to see whether blood vessel function, an early sign of heart disease, improves in HIV-infected men and women who take telmisartan for 12 weeks. The investigators will be looking at how a blood vessel in the arm, called the brachial artery, changes in response to stress before and after taking telmisartan. To determine how well the blood vessel functions, the investigators will be using an ultrasound machine.
Telmisartan is not an HIV medication. It is an FDA-approved medication designed to treat blood pressure, but has been shown to improve blood vessel function in HIV-negative people with and without high blood pressure. Telmisartan is made by Boehringer Ingelheim, and this trial is sponsored by The Campbell Foundation.
調査の概要
研究の種類
入学 (実際)
段階
- フェーズ2
連絡先と場所
研究場所
-
-
California
-
Los Angeles、California、アメリカ、90035
- UCLA CARE Center
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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:
- HIV positive men and women > 50 years of age.
- HIV-1 RNA documented to be < 50 copies/mL at screening and undetectable by assay of choice (< 50 or < 400 copies/mL) for at least 12 weeks prior to entry.
- Current ART with a suppressive, highly active regimen. Subjects must not have changed ART in the 12 weeks prior to entry, and must not be planning to change ART for the 12-week study duration.
- Systolic blood pressure > 110mmHg.
- One or more risk factors for CVD (smoking, hypertension, hyperlipidemia, diabetes mellitus). Note: family history of early heart disease alone will not be a sufficient entry criterion.
- Ability and willingness of subject to provide informed consent.
Exclusion Criteria:
- Pregnancy (current or within the past 6 months) or nursing.
- Uncontrolled hypertension:
- Prohibited concomitant medications: Other members of the angiotensin receptor-blocking class (losartan, irbesartan, olmesartan, valsartan, candesartan; wash-out period allowed), nelfinavir, and etravirine. Subjects taking nelfinavir or etravirine will be excluded due to the possibility of increased drug levels via inhibition of cytochrome P-450 2C19.
Note 1: Subjects requiring amifostine or rituximab must be aware of the increased risk of orthostatic hypotension with the addition of telmisartan. Any subject requiring lithium therapy while on study must have lithium levels monitored closely by their outside physician. All subjects on the above listed medications should provide documentation that their physician is aware of the study protocol.
Note 2: Subjects taking thiazolidinediones must be on stable dosing (> 12 weeks) and must agree to refrain from dose titration for the 12-week study duration.
- Untreated hyperlipidemia: Subjects must be willing to abstain from initiating therapy for the 12-week study duration. Subjects on a stable (> 12 weeks) lipid-lowering regimen must be willing to remain on their current dose for the 12-week study duration.
- Subjects undergoing treatment for diabetes with oral hypoglycemic agents must be willing to remain on their current dose of insulin-sensitizing agents (metformin/biguanides) for the 12-week study duration. Titration of other diabetes (except thiazolidinediones, see 4.2.3) medications will be permitted.
- Screening laboratory values as follows:
- ANC < 750 cells/mm3
- Hemoglobin < 10 gm/dL
- Creatinine clearance < 30 mL/min (estimated by Cockcroft-Gault equation using ideal body weight)
- AST or ALT > 3 times ULN
- Known, untreated, renal artery stenosis.
- Unstable coronary artery disease/angina, decompensated congestive heart failure, or predicted need for cardiovascular surgery within the study period.
- History of intolerance to any member of the angiotensin receptor blocker class of agents.
- Need for ongoing potassium supplementation.
- Active, untreated opportunistic and/or AIDS-defining illnesses.
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:処理
- 割り当て:なし
- 介入モデル:単一グループの割り当て
- マスキング:なし(オープンラベル)
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的:Telmisartan
Open label
|
80mg tablets po daily for 6 weeks
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 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
6-week Change in Diameter and Flow Mediated Dilatation (FMD) of the Brachial Artery With Telmisartan Therapy
時間枠:6 weeks (after baseline)
|
Flow-mediated dilatation (FMD) testing of the brachial artery was performed for all participants on Telmisartan treatment at baseline and 6 weeks.
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6 weeks (after baseline)
|
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6-week Change in Maximum Relative Flow Mediated Dilatation (FMD) of the Brachial Artery With Telmisartan Therapy
時間枠:6 weeks (after baseline)
|
Flow-mediated dilatation (FMD) testing of the brachial artery was performed for all participants on Telmisartan treatment at baseline and 6 weeks.
|
6 weeks (after baseline)
|
協力者と研究者
捜査官
- 主任研究者:Jordan E. Lake, MD、University of California, Los Angeles
出版物と役立つリンク
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
キーワード
追加の関連 MeSH 用語
その他の研究ID番号
- miFMD
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