Pemafibrate for Symptomatic ICAS RCT (PPAR-ICAS)
Triglyceride-lowering Therapy With Pemafibrate for Prevention of Atherosclerotic Cardiovascular Disease in Patients With Symptomatic Intracranial Artery Stenosis: a Multi-center, Open-label, Randomized Controlled Trial (PPAR-ICAS)
The goal of this clinical trial is to learn whether pemafibrate can help prevent worsening of intracranial arterial stenosis (ICAS) in patients who have symptomatic ICAS and high triglycerides (TG) levels after ischemic stroke or transient ischemic attack (TIA).
The main questions this study aims to answer are:
- Does pemafibrate lower the chance that ICAS gets worse over 12 months?
- Does pemafibrate improve TG levels and other vascular risk markers?
- What are the effects of pemafibrate on vascular events, functional outcomes, and safety over 12 months?
Researchers will compare a pemafibrate group with a non-pemafibrate group to see whether pemafibrate helps prevent progression of ICAS. This is an open-label, randomized, parallel-group trial. That means participants are assigned by chance to 1 of 2 groups, and both the researchers and participants know which group was assigned. Participants in both groups will continue to receive standard stroke care, including antithrombotic therapy and management of vascular risk factors such as blood pressure, low-density lipoprotein cholesterol, diabetes, and smoking.
Participants may be eligible if they are 18 years or older, have clinically stable ischemic stroke or TIA, have 50% to 99% stenosis in a symptomatic intracranial artery on contrast-enhanced CT angiography (CTA), and have elevated fasting (>=150 mg/dL) or non-fasting (>=175 mg/dL) TG levels. Some people will not be eligible, such as those with ICAS due to non-atherosclerotic arterial disease, severe extracranial carotid stenosis, recent intravenous thrombolysis or mechanical thrombectomy, planned revascularization, contraindications to pemafibrate or iodinated contrast media, dialysis, or pregnancy.
Participants will:
- Be randomly assigned to a pemafibrate group or a non-pemafibrate group
- Take pemafibrate for 12 months if assigned to the pemafibrate group, with possible dose adjustment based on TG levels and kidney function
- Have blood tests and clinical assessments at baseline and during follow-up
- Undergo brain CTA at study entry and again at 12 months
- Undergo brain MRI/MRA and vascular tests such as ankle brachial index, cardio ankle vascular index, and pulse wave velocity according to the study schedule
- Be followed for vascular events, functional outcome, and adverse events for 1 year
調査の概要
研究の種類
入学 (推定)
段階
- 適用できない
連絡先と場所
研究連絡先
- 名前:Kenichi Todo, MD, PhD
- 電話番号:+81-3-3353-8111
- メール:todo.kenichi@twmu.ac.jp
研究連絡先のバックアップ
- 名前:Takao Hoshino, MD, PhD
- 電話番号:+81-3-3353-8111
- メール:hoshino.takao@twmu.ac.jp
研究場所
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Aichi-ken
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Toyoake、Aichi-ken、日本、470-1192
- まだ募集していません
- Fujita Health University Hospital
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コンタクト:
- Shoji Fujita
- 電話番号:+81-562-93-2111
- メール:shoji.neuro@gmail.com
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Chiba
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Yachiyo、Chiba、日本、276-8524
- まだ募集していません
- Tokyo Women's Medical University Yachiyo Medical Center
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コンタクト:
- Taichi Ishiguro
- 電話番号:+81-47-450-6000
- メール:ishiguro.taichi@twmu.ac.jp
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Hiroshima
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Fukuyama、Hiroshima、日本、720-0825
- まだ募集していません
- Brain Attack Center Ota Memorial Hospital
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コンタクト:
- Yuka Terasawa
- 電話番号:+81-84-931-8651
- メール:ykterasawa@shouwa.or.jp
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Hiroshima、Hiroshima、日本、730-8518
- まだ募集していません
- Hiroshima City Hiroshima Citizens Hospital
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コンタクト:
- Tomoyuki Kono
- 電話番号:+81-82-221-2291
- メール:t.kono1201@gmail.com
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Hyōgo
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Kobe、Hyōgo、日本、650-0047
- まだ募集していません
- Kobe City Medical Center General Hospital
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コンタクト:
- Nobuyuki Ohara
- 電話番号:+81-78-302-4321
- メール:nobuyukiohara@gmail.com
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Ibaraki
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Tsukuba、Ibaraki、日本、305-8576
- まだ募集していません
- University of Tsukuba Hospital
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コンタクト:
- Hiroshi Yamagami
- 電話番号:+81-29-853-3900
- メール:yamagami.brain@outlook.com
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Iwate
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Hizume、Iwate、日本、028-3695
- 募集
- Iwate Medical University Hospital
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コンタクト:
- Ryo Itabashi
- 電話番号:+81-19-613-7111
- メール:ritabash@iwate-med.ac.jp
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Kagoshima-ken
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Kagoshima、Kagoshima-ken、日本、892-0853
- 募集
- Kagoshima Medical Center
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コンタクト:
- Hideki Matsuoka
- 電話番号:+81-99-223-1151
- メール:hmatsuok0124@yahoo.co.jp
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Kanagawa
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Isehara、Kanagawa、日本、259-1193
- まだ募集していません
- Tokai University Hopital
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コンタクト:
- Eiichiro Nagata
- 電話番号:+81-463-93-1121
- メール:enagata@tokai.ac.jp
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Kawasaki、Kanagawa、日本、211-8533
- まだ募集していません
- Nippon Medical School Musashikosugi Hospital
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コンタクト:
- Kentaro Suzuki
- 電話番号:+81-44-733-5181
- メール:kentarow@nms.ac.jp
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Kumamoto
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Kumamoto、Kumamoto、日本、860-8556
- 募集
- Kumamoto University Hospital
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コンタクト:
- Makoto Nakajima
- 電話番号:+81-96-344-2111
- メール:nakazima@kuh.kumamoto-u.ac.jp
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Kyoto
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Kyoto、Kyoto、日本、602-8566
- 募集
- University Hospital Kyoto Prefectural University of Medicine
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コンタクト:
- Tomoyuki Ohara
- 電話番号:+81-75-251-5111
- メール:ohatomo@koto.kpu-m.ac.jp
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Kyoto、Kyoto、日本、602-8026
- 募集
- Japanese Red Cross Kyoto Daini Hospital
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コンタクト:
- Yoshinari Nagakane
- 電話番号:+81-75-231-5171
- メール:ynagakane@gmail.com
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Nagasaki
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Nagasaki、Nagasaki、日本、852-8501
- 募集
- Nagasaki University Hospital
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コンタクト:
- Yohei Tateishi
- 電話番号:+81-95-819-7200
- メール:ytate@nagasaki-u.ac.jp
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Okayama-ken
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Kurashiki、Okayama-ken、日本、701-0192
- 募集
- Kawasaki Medical School Hospital
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コンタクト:
- Yoshiki Yagita
- 電話番号:+81-86-462-1111
- メール:yyagita@med.kawasaki-m.ac.jp
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Osaka
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Hirakata、Osaka、日本、573-1191
- 募集
- Kansai Medical University Hospital
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コンタクト:
- Yusuke Yakushiji
- 電話番号:+81-72-804-0101
- メール:yakushiji.yus@kmu.ac.jp
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Osaka、Osaka、日本、558-8558
- 募集
- Osaka General Medical Center
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コンタクト:
- Manabu Sakaguchi
- 電話番号:+81-6-6692-1201
- メール:sakaguti@neurol.med.osaka-u.ac.jp
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Osaka、Osaka、日本、543-0042
- 募集
- Osaka Keisatsu Hospital
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コンタクト:
- Yasutaka Murakami
- 電話番号:+81-6-6771-6051
- メール:y.m.since20150916@gmail.com
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Osaka、Osaka、日本、540-0006
- 募集
- Osaka National Hospital
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コンタクト:
- Shuhei Okazaki
- 電話番号:+81-6-6942-1331
- メール:s-okazaki@osaka-njm.net
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Sakai、Osaka、日本、590-0197
- まだ募集していません
- Kindai University Hopital
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コンタクト:
- Kanta Tanaka
- 電話番号:+81-72-288-7222
- メール:tanaka19830311kanta@gmail.com
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Suita、Osaka、日本、565-0871
- まだ募集していません
- The University of Osaka Hospital
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コンタクト:
- Tsutomu Sakai
- 電話番号:+81-6-6879-5111
- メール:sasaki@neurol.med.osaka-u.ac.jp
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Saitama
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Hidaka、Saitama、日本、350-1298
- 募集
- Saitama Medical University International Medical Center
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コンタクト:
- Junya Aoki
- 電話番号:+81-42-984-4111
- メール:aokijy@saitama-med.ac.jp
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Saitama、Saitama、日本、330-8553
- 募集
- Japanese Red Cross Saitama Hospital
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コンタクト:
- Shuji Hino
- 電話番号:+81-48-852-1111
- メール:shuji-hino@umin.org
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Tochigi
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Mibu、Tochigi、日本、321-0293
- 募集
- Dokkyo Medical University Hospital
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コンタクト:
- Hidehiro Takegawa
- 電話番号:+81-282-86-1111
- メール:take@dokkyomed.ac.jp
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Shimotsuke、Tochigi、日本、329-0498
- 募集
- Jichi Medical University Hospital
-
コンタクト:
- Shigeru Fujimoto
- 電話番号:+81-285-44-2111
- メール:fujimotos1965@yahoo.co.jp
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Tokushima
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Tokushima、Tokushima、日本、770-8503
- まだ募集していません
- Tokushima University Hospital
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コンタクト:
- Yasushi Takagi
- 電話番号:+81-88-631-3111
- メール:ytakagi@tokushima-u.ac.jp
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Tokyo
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Adachi-ku、Tokyo、日本、123-8558
- まだ募集していません
- Tokyo Women's Medical University Adachi Medical Center
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コンタクト:
- Sono Toi
- 電話番号:+81-3-3857-0111
- メール:toi.sono@twmu.ac.jp
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Bunkyō-Ku、Tokyo、日本、113-8519
- まだ募集していません
- Institute of Science Tokyo Hospital
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コンタクト:
- Kazutaka Sumita
- 電話番号:+81-3-3813-6111
- メール:sumita.nsrg@tmd.ac.jp
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Bunkyō-Ku、Tokyo、日本、113-8603
- まだ募集していません
- Nippon Medical School Hospital
-
コンタクト:
- Satoshi Suda
- メール:suda-sa@nms.ac.jp
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Kodaira、Tokyo、日本、187-8510
- 募集
- Showa General Hospital
-
コンタクト:
- Yutaka Honma
- 電話番号:+81-42-461-0052
- メール:honma.yutaka@showa-hp.jp
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Minato-Ku、Tokyo、日本、108-0073
- まだ募集していません
- Tokyo Saiseikai Central Hospital
-
コンタクト:
- Koichi Oki
- 電話番号:+81-3-3451-8211
- メール:koki.z8@keio.jp
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Minato-Ku、Tokyo、日本、105-8471
- まだ募集していません
- The Jikei University Hspital
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コンタクト:
- Kenichiro Sakai
- 電話番号:+81-570-03-2222
- メール:k.sakai.0127@gmail.com
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Mitaka、Tokyo、日本、181-8611
- 募集
- Kyorin University Hospital
-
コンタクト:
- Teruyuki Hirano
- 電話番号:+81-422-47-5511
- メール:terry@ks.kyorin-u.ac.jp
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Shinjuku-Ku、Tokyo、日本、162-8666
- 募集
- Tokyo Women's Medical University Hospital
-
コンタクト:
- Kenichi Todo
- 電話番号:+81-3-3353-8111
- メール:todo.kenichi@twmu.ac.jp
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Shinjuku-Ku、Tokyo、日本、160-0023
- 募集
- Tokyo Medical University Hospital
-
コンタクト:
- Hiroo Terashi
- 電話番号:+81-3-3342-6111
- メール:terashi@tokyo-med.ac.jp
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Tama、Tokyo、日本、206-8512
- まだ募集していません
- Nippon Medical School Tamanagayama hospital
-
コンタクト:
- Tomonari Saito
- 電話番号:+81-42-371-2111
- メール:s00-036@nms.ac.jp
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-
Yamanashi
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Chūō、Yamanashi、日本、409-3898
- 募集
- University of Yamanashi Hospital
-
コンタクト:
- Yuji Ueno
- 電話番号:+81-55-273-1111
- メール:uenoy@yamanashi.ac.jp
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参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- Clinically stable ischemic stroke or high-risk TIA (ABCD2 score >=4) between 24 hours and 3 years from onset at enrollment.
- Contrast-enhanced CT angiography (CTA) within 3 months prior to consent demonstrating 50-99% stenosis (WASID criteria) in a symptomatic intracranial artery: intracranial internal carotid artery, middle cerebral artery (M1/M2), anterior cerebral artery (A1), vertebral artery (V4), basilar artery, or posterior cerebral artery (P1).
- Fasting triglycerides (TG) 150-499 mg/dL, or non-fasting TG 175-499 mg/dL, measured within 4 weeks prior to consent.
- Men or women aged >=18 years at the time of consent.
- Ability to obtain written informed consent from the patient or a legally authorized representative.
Exclusion Criteria:
- Patients with intracranial arterial stenosis due to non-atherosclerotic disorders (e.g., vasculitis, moyamoya disease, intracranial arterial dissection).
- Patients with >=70% stenosis of the extracranial carotid artery (NASCET criteria).
- Patients with neurological deterioration within 24 hours prior to enrollment.
- Patients who received intravenous thrombolysis or mechanical thrombectomy within 24 hours prior to enrollment.
- Patients scheduled to undergo revascularization procedures (percutaneous transluminal angioplasty, stent placement, carotid endarterectomy, or cerebral bypass surgery).
- Patients who meet any contraindication to pemafibrate, including:
(1) History of hypersensitivity to pemafibrate; (2) Severe hepatic impairment or liver cirrhosis classified as Child-Pugh B or C; (3) Cholelithiasis; (4) Pregnancy or suspected pregnancy; (5) Concomitant use of cyclosporine or rifampin. 7. Patients who have taken pemafibrate or any fibrate within 12 weeks prior to consent.
8. Patients with contraindications to iodinated contrast media. 9. Patients on dialysis. 10. Patients with a history of pancreatitis attributable to hypertriglyceridemia.
11. Patients with severe systemic comorbidities with an expected survival <12 months.
12. Patients who may be pregnant, are pregnant, or are breastfeeding. 13. Any other condition for which the principal or sub-investigator judges participation to be inappropriate.
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:ランダム化
- 介入モデル:並列代入
- マスキング:独身
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的:Pemafibrate group
Participants in this arm will receive pemafibrate in addition to standard medical therapy.
|
Participants in this arm will receive pemafibrate in addition to standard medical therapy.
|
|
介入なし:Non-pemafibrate group
Participants in this arm will receive standard medical therapy without pemafibrate.
|
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 |
|---|---|---|
|
Progression in intracranial arterial stenosis on CTA at 12 months from enrollment (progression vs. no progression [no change or improvement])
時間枠:Baseline and 12 months
|
Stenosis is assessed by the WASID method; progression is defined as an absolute increase of >=10 percentage points in percent stenosis or the development of occlusion, stability as a change of <10 percentage points in either direction, and improvement as an absolute decrease of >=10 percentage points. If, during follow-up, emergency or unplanned revascularization (mechanical thrombectomy, percutaneous transluminal angioplasty, stent placement, or bypass surgery) is performed for the target culprit vessel lesion evaluated at registration in relation to progression or occlusion of that lesion, the case will be classified as "progression" regardless of the availability of CTA findings at 12 months. |
Baseline and 12 months
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Key secondary endpoint (supplementary analyses of the primary endpoint): Change in intracranial arterial stenosis on CTA at 12 months from enrollment (three categories: progression, no change, improvement)
時間枠:Baseline and 12 months
|
Baseline and 12 months
|
|
|
Key secondary endpoint (supplementary analyses of the primary endpoint): Improvement in intracranial arterial stenosis on CTA at 12 months from enrollment (improvement vs. no improvement [progression or no change])
時間枠:Baseline and 12 months
|
Baseline and 12 months
|
|
|
Change in percent stenosis by the WASID method
時間枠:Baseline and 12 months
|
Baseline and 12 months
|
|
|
Proportion of intracranial arterial stenosis progression/improvement per the TOSS and TOSS-2 criteria
時間枠:Baseline and 12 months
|
Baseline and 12 months
|
|
|
Proportion of intracranial arterial stenosis progression/improvement per the Wong KS criteria
時間枠:Baseline and 12 months
|
Baseline and 12 months
|
|
|
All-cause mortality
時間枠:From enrollment to the end of treatment at 12 months
|
From enrollment to the end of treatment at 12 months
|
|
|
Change in Fazekas scale on brain MRI
時間枠:Baseline and 12 months
|
Baseline and 12 months
|
|
|
Change in number of cerebral microbleeds on brain MRI
時間枠:Baseline and 12 months
|
Baseline and 12 months
|
|
|
Change in total cerebral small vessel disease score on brain MRI
時間枠:Baseline and 12 months
|
Baseline and 12 months
|
|
|
Changes in blood biomarkers
時間枠:Baseline, 3 months, 6 months, and 12 months
|
Complete blood count; fasting TG, HDL-C, LDL-C, RLP-C; apolipoprotein C-III; lipoprotein(a); fasting plasma glucose; HbA1c; AST, ALT, gamma-GTP; creatinine, eGFR; CK; CRP, high-sensitivity CRP; IL-6; total homocysteine; PT-INR; APTT; fibrinogen; D-dimer
|
Baseline, 3 months, 6 months, and 12 months
|
|
Safety: occurrence of adverse events and illnesses
時間枠:From enrollment to the end of treatment at 12 months
|
From enrollment to the end of treatment at 12 months
|
|
|
Activities of daily living by mRS score (mRS 0-1, 0-2, and 0-3 proportions, and the overall mRS score distribution)
時間枠:Baseline and 12 months
|
The modified Rankin Scale (mRS) ranges from 0 to 6, with higher scores indicating greater disability or death; therefore, higher scores indicate a worse outcome.
|
Baseline and 12 months
|
|
Changes in ankle-brachial index (ABI)
時間枠:Baseline and 12 months
|
Baseline and 12 months
|
|
|
Change in cardio-ankle vascular index (CAVI)
時間枠:Baseline and 12 months
|
Baseline and 12 months
|
|
|
Change in pulse wave velocity (PWV)
時間枠:Baseline and 12 months
|
Baseline and 12 months
|
|
|
Major cardiovascular events (MACE)
時間枠:From enrollment to the end of treatment at 12 months
|
The following individual events and their composite: Ischemic stroke (fatal, nonfatal), TIA, intracranial hemorrhage (fatal, nonfatal), any stroke (ischemic stroke, TIA, intracranial hemorrhage), emergency or unplanned revascularization procedures, including mechanical thrombectomy, percutaneous transluminal angioplasty, stent placement, or bypass surgery Myocardial infarction (fatal, nonfatal), any coronary artery disease event (myocardial infarction, or angina treated with PCI or CABG) Symptomatic peripheral artery disease (with intermittent claudication, ulceration, or gangrene; or requiring revascularization) Vascular death |
From enrollment to the end of treatment at 12 months
|
協力者と研究者
出版物と役立つリンク
一般刊行物
- Chimowitz MI, Lynn MJ, Howlett-Smith H, Stern BJ, Hertzberg VS, Frankel MR, Levine SR, Chaturvedi S, Kasner SE, Benesch CG, Sila CA, Jovin TG, Romano JG; Warfarin-Aspirin Symptomatic Intracranial Disease Trial Investigators. Comparison of warfarin and aspirin for symptomatic intracranial arterial stenosis. N Engl J Med. 2005 Mar 31;352(13):1305-16. doi: 10.1056/NEJMoa043033.
- Kwon SU, Cho YJ, Koo JS, Bae HJ, Lee YS, Hong KS, Lee JH, Kim JS. Cilostazol prevents the progression of the symptomatic intracranial arterial stenosis: the multicenter double-blind placebo-controlled trial of cilostazol in symptomatic intracranial arterial stenosis. Stroke. 2005 Apr;36(4):782-6. doi: 10.1161/01.STR.0000157667.06542.b7. Epub 2005 Mar 3.
- Wong KS, Lam WW, Liang E, Huang YN, Chan YL, Kay R. Variability of magnetic resonance angiography and computed tomography angiography in grading middle cerebral artery stenosis. Stroke. 1996 Jun;27(6):1084-7. doi: 10.1161/01.str.27.6.1084.
- Kwon SU, Hong KS, Kang DW, Park JM, Lee JH, Cho YJ, Yu KH, Koo JS, Wong KS, Lee SH, Lee KB, Kim DE, Jeong SW, Bae HJ, Lee BC, Han MK, Rha JH, Kim HY, Mok VC, Lee YS, Kim GM, Suwanwela NC, Yun SC, Nah HW, Kim JS. Efficacy and safety of combination antiplatelet therapies in patients with symptomatic intracranial atherosclerotic stenosis. Stroke. 2011 Oct;42(10):2883-90. doi: 10.1161/STROKEAHA.110.609370. Epub 2011 Jul 28.
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (推定)
研究の完了 (推定)
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 (実際)
学習記録の更新
投稿された最後の更新 (実際)
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
- JIHS-C-005243-00
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。