Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 72
Filter
1.
Front Nutr ; 11: 1359330, 2024.
Article in English | MEDLINE | ID: mdl-38716073

ABSTRACT

Background: Carotid artery stenosis or occlusion (CASO) is a major cause of vascular cognitive impairment (VCI). There is currently no effective treatment for VCI induced by CASO. Resveratrol, a type of polyphenol, improves cognitive performance in rat CASO models via pleiotropic effects. Furthermore, we previously reported the longevity gene, SIRT1, which can be activated by resveratrol, improves cognitive and cerebral blood flow impairment in mouse CASO models by activating endothelial nitric oxide synthase. However, clinical evidence remains limited. Methods: The REsveratrol for VAscular cognitive impairment investigating cerebral Metabolism and Perfusion (REVAMP) trial is a randomized, double-blind, placebo-controlled trial involving patients with asymptomatic CASO. Each participant will receive either 150 mg/day of resveratrol or a placebo for 35 weeks. The primary objective is to determine whether resveratrol improves cognitive impairment, as assessed using the Alzheimer's disease Assessment Scale-cognitive subscale 13. One of our secondary objectives is to determine whether resveratrol improves cerebral hemodynamic impairment as assessed via 15O-gas positron emission tomography. We will recruit 100 patients (50 per group). Discussion: The REVAMP trial may provide valuable insights into new therapeutic options, as multitarget neuroprotection could potentially improve cognitive function along with enhancements in cerebral hemodynamic status in patients with asymptomatic CASO.Clinical trial registration: The REVAMP trial was prospectively registered in the Japan Registry of Clinical Trials (jRCTs051230013) on April 13, 2023.

2.
Circ J ; 88(3): 382-387, 2024 Feb 22.
Article in English | MEDLINE | ID: mdl-38220173

ABSTRACT

BACKGROUND: We investigated the clinical effect of intravenous thrombolysis using a magnetic resonance imaging (MRI)-guided approach in cardioembolic stroke (CE) patients with unknown time of onset.Methods and Results: This subanalysis of the THAWS trial assessed the efficacy and safety of alteplase 0.6 mg/kg in CE patients with unknown time of onset and showing diffusion-weighted imaging-fluid-attenuated inversion recovery mismatch. Patients were classified as CE and non-CE using the SSS-TOAST classification system during the acute period. The efficacy outcome was a modified Rankin Scale score of 0-1 at 90 days. In all, 126 patients from the THAWS trial were included in this study, of whom 45 (35.7%) were diagnosed with CE. In the CE group, a favorable outcome was numerically more frequent in the alteplase than control group (52% vs. 35%; adjusted odds ratio [aOR] 2.25; 95% confidence interval [CI] 0.50-9.99). However, in the non-CE group, favorable outcomes were comparable between the alteplase and control groups (44% vs. 55%, respectively; aOR 0.39; 95% CI 0.12-1.21). Treatment-by-cohort interaction for a favorable outcome was modestly significant between the CE and non-CE groups (P=0.069). In the CE group, no patients experienced symptomatic intracranial hemorrhage (ICH) or parenchymal hematoma Type II following thrombolysis. CONCLUSIONS: When an MRI-guided approach is used, CE patients with unknown time of onset appear to be suitable candidates for thrombolysis.


Subject(s)
Brain Ischemia , Embolic Stroke , Stroke , Humans , Brain Ischemia/drug therapy , Fibrinolytic Agents/adverse effects , Magnetic Resonance Imaging/methods , Stroke/diagnostic imaging , Stroke/drug therapy , Stroke/etiology , Thrombolytic Therapy/adverse effects , Thrombolytic Therapy/methods , Tissue Plasminogen Activator/adverse effects , Treatment Outcome
3.
J Atheroscler Thromb ; 31(2): 122-134, 2024 Feb 01.
Article in English | MEDLINE | ID: mdl-37704431

ABSTRACT

AIM: Omega-3 fatty acids have emerged as a new option for controlling the residual risk for coronary artery disease (CAD) in the statin era. Eicosapentaenoic acid (EPA) is associated with reduced CAD risk in the Reduction of Cardiovascular Events with Icosapent Ethyl-Intervention trial, whereas the Statin Residual Risk with Epanova in High Cardiovascular Risk Patients with Hypertriglyceridemia trial that used the combination EPA/docosahexaenoic acid (DHA) has failed to derive any clinical benefit. These contradictory results raise important questions about whether investigating the antiatherosclerotic effect of omega-3 fatty acids could help to understand their significance for CAD-risk reduction. METHODS: The Attempts at Plaque Vulnerability Quantification with Magnetic Resonance Imaging Using Noncontrast T1-weighted Technic EPA/DHA study is a single-center, triple-arm, randomized, controlled, open-label trial used to investigate the effect of EPA/DHA on high-risk coronary plaques after 12 months of treatment, detected using cardiac magnetic resonance (CMR) in patients with CAD receiving statin therapy. Eligible patients were randomly assigned to no-treatment, 2-g/day, and 4-g/day EPA/DHA groups. The primary endpoint was the change in the plaque-to-myocardium signal intensity ratio (PMR) of coronary high-intensity plaques detected by CMR. Coronary plaque assessment using computed tomography angiography (CTA) was also investigated. RESULTS: Overall, 84 patients (mean age: 68.2 years, male: 85%) who achieved low-density lipoprotein cholesterol levels of <100 mg/dL were enrolled. The PMR was reduced in each group over 12 months. There were no significant differences in PMR changes among the three groups in the primary analysis or analysis including total lesions. The changes in CTA parameters, including indexes for detecting high-risk features, also did not differ. CONCLUSION: The EPA/DHA therapy of 2 or 4 g/day did not significantly improve the high-risk features of coronary atherosclerotic plaques evaluated using CMR under statin therapy.


Subject(s)
Coronary Artery Disease , Fatty Acids, Omega-3 , Hydroxymethylglutaryl-CoA Reductase Inhibitors , Plaque, Atherosclerotic , Humans , Male , Aged , Plaque, Atherosclerotic/diagnostic imaging , Plaque, Atherosclerotic/drug therapy , Docosahexaenoic Acids , Eicosapentaenoic Acid , Hydroxymethylglutaryl-CoA Reductase Inhibitors/therapeutic use , Coronary Artery Disease/diagnostic imaging , Coronary Artery Disease/drug therapy , Fatty Acids, Omega-3/therapeutic use
4.
JAMA Netw Open ; 6(12): e2344938, 2023 Dec 01.
Article in English | MEDLINE | ID: mdl-38048134

ABSTRACT

Importance: Recent evidence indicates the efficacy of ß-amyloid immunotherapy for the treatment of Alzheimer disease, highlighting the need to promote ß-amyloid removal from the brain. Cilostazol, a selective type 3 phosphodiesterase inhibitor, promotes such clearance by facilitating intramural periarterial drainage. Objective: To determine the safety and efficacy of cilostazol in mild cognitive impairment. Design, Setting, and Participants: The COMCID trial (A Trial of Cilostazol for Prevention of Conversion from Mild Cognitive Impairment to Dementia) was an investigator-initiated, double-blind, phase 2 randomized clinical trial. Adult participants were registered between May 25, 2015, and March 31, 2018, and received placebo or cilostazol for up to 96 weeks. Participants were treated in the National Cerebral and Cardiovascular Center and 14 other regional core hospitals in Japan. Patients with mild cognitive impairment with Mini-Mental State Examination (MMSE) scores of 22 to 28 points (on a scale of 0 to 30, with lower scores indicating greater cognitive impairment) and Clinical Dementia Rating scores of 0.5 points (on a scale of 0, 0.5, 1, 2, and 3, with higher scores indicating more severe dementia) were enrolled. The data were analyzed from May 1, 2020, to December 1, 2020. Interventions: The participants were treated with placebo, 1 tablet twice daily, or cilostazol, 50 mg twice daily, for up to 96 weeks. Main Outcomes and Measures: The primary end point was the change in the total MMSE score from baseline to the final observation. Safety analyses included all adverse events. Results: The full analysis set included 159 patients (66 [41.5%] male; mean [SD] age, 75.6 [5.2] years) who received placebo or cilostazol at least once. There was no statistically significant difference between the placebo and cilostazol groups for the primary outcome. The least-squares mean (SE) changes in the MMSE scores among patients receiving placebo were -0.1 (0.3) at the 24-week visit, -0.8 (0.3) at 48 weeks, -1.2 (0.4) at 72 weeks, and -1.3 (0.4) at 96 weeks. Among those receiving cilostazol, the least-squares mean (SE) changes in MMSE scores were -0.6 (0.3) at 24 weeks, -1.0 (0.3) at 48 weeks, -1.1 (0.4) at 72 weeks, and -1.8 (0.4) at 96 weeks. Two patients (2.5%) in the placebo group and 3 patients (3.8%) in the cilostazol group withdrew owing to adverse effects. There was 1 case of subdural hematoma in the cilostazol group, which may have been related to the cilostazol treatment; the patient was successfully treated surgically. Conclusions and Relevance: In this randomized clinical trial, cilostazol was well tolerated, although it did not prevent cognitive decline. The efficacy of cilostazol should be tested in future trials. Trial Registration: ClinicalTrials.gov Identifier: NCT02491268.


Subject(s)
Alzheimer Disease , Cognitive Dysfunction , Dementia , Adult , Humans , Male , Aged , Female , Cilostazol/therapeutic use , Cognitive Dysfunction/drug therapy , Amyloid beta-Peptides
5.
J Atheroscler Thromb ; 30(1): 39-55, 2023 Jan 01.
Article in English | MEDLINE | ID: mdl-35249906

ABSTRACT

AIMS: We aimed to determine the association between acute platelet reactivity and clinical outcome in acute ischemic stroke (AIS) or transient ischemic attack (TIA) with large-artery atherosclerosis (LAA). METHODS: In this prospective, 16-multicenter study, we enrolled AIS/TIA patients with LAA receiving clopidogrel. We assessed the association of P2Y12 reaction units (PRU) 24 hours after initiation of antiplatelets with the CYP2C19 genotype and recurrent ischemic stroke within 90 days, and the difference between acute (≤ 7 days) and subacute (8-90 days) phases. RESULTS: Among the 230 AIS/TIA patients enrolled, 225 with complete outcome data and 194 with genetic results were analyzed. A higher PRU was significantly associated with recurrent ischemic stroke within 90 days (frequency, 16%), and within 7 days (10%). Twenty-nine patients (15%) belonged to a CYP2C19 poor metabolizer group (CYP2C19*2/*2, *2/*3, or *3/*3). Multivariable receiver-operating characteristic analysis showed a greater area-under-the-curve (AUC) in predicting recurrence within 7 days, compared to 8-90 days (AUC, 0.79 versus 0.64; p=0.07), with a cut-off PRU of 254. Multivariable analysis showed high PRU (≥ 254), which had a comparable predictive performance for recurrent ischemic stroke within 7 days (odds ratio, 6.82; 95% CI, 2.23-20.9; p<0.001) to the CYP2C19 poor metabolizer genotype. The net reclassification improvement, calculated by adding high PRU (≥ 254) to a model including the CYP2C19 poor metabolizer genotype in the prediction of recurrence within 7 days, was 0.83 (p<0.001). CONCLUSIONS: Acute PRU evaluation possesses predictive value for recurrent ischemic stroke, especially within 7 days in AIS/TIA with LAA.


Subject(s)
Atherosclerosis , Ischemic Attack, Transient , Ischemic Stroke , Stroke , Humans , Platelet Aggregation Inhibitors/therapeutic use , Prospective Studies , Ticlopidine , Cytochrome P-450 CYP2C19/genetics , Treatment Outcome , Stroke/genetics , Atherosclerosis/genetics
6.
J Atheroscler Thromb ; 30(1): 15-22, 2023 Jan 01.
Article in English | MEDLINE | ID: mdl-35197420

ABSTRACT

AIM: This study aimed to assess the potential effect of prior antithrombotic medication for thrombolysis in an unknown onset stroke. METHODS: This was a predefined sub-analysis of the THAWS trial. Stroke patients with a time last known well >4.5 h who had a DWI-fluid-attenuated inversion recovery mismatch were randomly assigned (1:1) to receive alteplase at 0.6 mg/kg (alteplase group) or standard medical treatment (control group). Patients were dichotomized by prior antithrombotic medication. RESULTS: Of 126 patients (intention-to-treat population), 40 took antithrombotic medication (24 with antiplatelets alone, 13 with anticoagulants alone, and 3 with both), and the remaining 86 did not before stroke onset. Of these, 17 and 52 patients, respectively, received alteplase, and 23 and 34, respectively, had standard medical treatment. Antithrombotic therapy was initiated within 24 h after randomization less frequently in the alteplase group (12% vs. 86%, p<0.01). Both any intracranial hemorrhage within 22-36 h (26% vs. 14%) and a modified Rankin Scale score of 0-1 at 90 days (good outcome) (47% vs. 48%) were comparable between the two groups. A good outcome was more common in the alteplase group than in the control group in patients with prior antithrombotic medication [relative risk (RR) 2.25, 95% confidence interval (CI) 1.02-4.99], but it tended to be less common in the alteplase group in those without (RR 0.69, 95% CI 0.46-1.03) (p<0.01 for interaction). The frequency of any intracranial hemorrhage did not significantly differ between the two groups in any patients dichotomized by prior antithrombotic medication. CONCLUSION: Alteplase appears more beneficial in patients with prior antithrombotic medication.


Subject(s)
Brain Ischemia , Stroke , Humans , Brain Ischemia/drug therapy , Diffusion Magnetic Resonance Imaging , Fibrinolytic Agents/administration & dosage , Intracranial Hemorrhages , Stroke/drug therapy , Stroke/etiology , Stroke/prevention & control , Tissue Plasminogen Activator/therapeutic use , Treatment Outcome
8.
Neurocrit Care ; 37(2): 487-496, 2022 10.
Article in English | MEDLINE | ID: mdl-35513751

ABSTRACT

BACKGROUND: On the basis of increased mortality associated with hyperchloremia among critically ill patients, we investigated the effect of occurrence of early hyperchloremia on death or disability at 90 days in patients with intracerebral hemorrhage (ICH). METHODS: We analyzed the data from Antihypertensive Treatment of Cerebral Hemorrhage 2 trial, which recruited patients with spontaneous ICH within 4.5 h of symptom onset. Patients with increased serum chloride levels (110 mmol/L or greater) at either baseline or 24, 48, or 72 h after randomization were identified. We further graded hyperchloremia into one occurrence or two or more occurrences within the first 72 h. Two logistic regression analyses were performed to determine the effects of hyperchloremia on (1) death within 90 days and (2) death or disability at 90 days after adjustment for potential confounders. RESULTS: Among the total of 1,000 patients analyzed, hyperchloremia within 72 h was seen in 114 patients with one occurrence and in 154 patients with two or more occurrences. Patients with one occurrence of hyperchloremia (odds ratio [OR] 2.5, 95% confidence interval [CI] 1.1-5.5) and those with two or more occurrences (OR 2.6, 95% CI 1.3-5.0) had significantly higher odds of death within 90 days after adjustment for age, race and ethnicity, National Institutes of Health Stroke Scale score strata, hematoma volume, presence or absence of intraventricular hemorrhage, cigarette smoking, previous stroke, and maximum hourly dose of nicardipine. Patients with two or more occurrences of hyperchloremia (OR 3.4, 95% CI 2.1-5.6) had significantly higher odds of death or disability at 90 days compared with patients without hyperchloremia after adjustment for the abovementioned potential confounders. CONCLUSIONS: The independent association between hyperchloremia and death or disability at 90 days suggests that avoidance of hyperchloremia may reduce the observed death or disability in patients with ICH. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov: NCT01176565.


Subject(s)
Nicardipine , Stroke , Antihypertensive Agents/therapeutic use , Cerebral Hemorrhage , Chlorides/therapeutic use , Humans , Nicardipine/therapeutic use
9.
Stroke ; 53(6): 1854-1862, 2022 06.
Article in English | MEDLINE | ID: mdl-35400202

ABSTRACT

BACKGROUND: To highlight the heterogeneity of acute temporal blood pressure (BP) changes in the ATACH-2 trial (Antihypertensive Treatment of Acute Cerebral Hemorrhage-2) and associations with the outcomes of intracerebral hemorrhage. METHODS: One thousand patients with acute intracerebral hemorrhage, who had been randomized to intensive (110-139 mm Hg) or standard (140-179 mm Hg) systolic BP (SBP) lowering with intravenous nicardipine in ATACH-2 from 2011 to 2015, were analyzed about temporal changes in hourly maximum SBP up to 24 hours after randomization using group-based trajectory modeling. Outcomes included death or disability (modified Rankin Scale score 4-6) at 3 months, neurological deterioration within 24 hours (≥2-point decrease in Glasgow Coma Scale score or ≥4-point increase in National Institutes of Health Stroke Scale score), and acute kidney injury (≥0.3 mg/dL within 48 hours or ≥1.5-fold increase in serum creatinine) within 7 days after onset. RESULTS: Group-based trajectory modeling revealed 4 SBP trajectory groups: moderate SBP (from ≈190 mm Hg at hospital arrival to 150-160 mm Hg after randomization; n=298), moderate-to-low SBP (from ≈190 mm Hg to <140 mm Hg; n=395), high-to-low SBP (from >210 mm Hg to <140 mm Hg; n=134), and high SBP (from >210 mm Hg to 160-170 mm Hg; n=173). Patients with intensive treatment accounted for 11.1%, 88.6%, 85.1%, and 1.7% of each group, respectively. Compared with the moderate-to-low SBP group, the high-to-low SBP group showed increased risks of death or disability at 3 months (adjusted odds ratio, 2.29 [95% CI, 1.24-4.26]) and acute kidney injury (adjusted odds ratio, 3.50 [95% CI, 1.83-6.69]), while no increase in neurological deterioration was seen in this group (adjusted odds ratio, 0.48 [95% CI, 0.20-1.13]). The moderate SBP and high SBP groups showed no significant risk differences for such outcomes. CONCLUSIONS: Data-driven observation using a group-based trajectory modeling approach may be useful to clarify the relationship between antihypertensive treatment, temporal SBP changes, and outcomes in acute intracerebral hemorrhage. REGISTRATION: URL: https://www. CLINICALTRIALS: gov; Unique identifier: NCT01176565.


Subject(s)
Acute Kidney Injury , Hypertension , Antihypertensive Agents , Blood Pressure/physiology , Cerebral Hemorrhage/drug therapy , Humans , Hypertension/drug therapy , Treatment Outcome
11.
Eur Stroke J ; 7(1): 71-75, 2022 Mar.
Article in English | MEDLINE | ID: mdl-35300254

ABSTRACT

Background: Tenecteplase has higher fibrin specificity with a longer half-life and the potential to achieve higher rates of recanalization than alteplase. A critical limitation of tenecteplase is no commercial use in Japan and no experience with its administration to Japanese patients. Hypothesis: Tenecteplase is superior to alteplase in achieving recanalization on the initial angiogram when administered ≤4.5-hour of stroke onset in patients planned for mechanical thrombectomy (MT) in Japan where alteplase at the unique dose of 0.6mg/kg is officially used. Methods: The Tenecteplase versus alteplase For LArge Vessel Occlusion Recanalization (T-FLAVOR) trial is an investigator-initiated, phase II, multicenter, prospective, randomized, open-label, masked-endpoint, superiority study. Eligibility criteria include acute ischemic stroke with pre-stroke modified Rankin Scale score ≤3 and large vessel occlusion (internal carotid artery, middle cerebral artery, or basilar artery) eligible for intravenous thrombolysis ≤4.5-hour and MT ≤6-hour of stroke onset. After completing the safety confirmation phase involving three patients who received non-masked tenecteplase (0.25 mg/kg), 220 patients will be randomized to two groups (1:1), intravenous alteplase (0.6mg/kg, n = 110) or tenecteplase (0.25mg/kg, n = 110), prior to MT. Outcomes: In the safety confirmation phase, the primary outcome is symptomatic intracranial hemorrhage (sICH) ≤24-36-hour. In the randomized, comparative phase, the primary efficacy outcome is substantial angiographic reperfusion (mTICI grade 2b/2c/3) or absence of retrievable thrombus on the initial angiogram. The primary safety outcome is sICH ≤24-36-hour and 90-day mortality. Discussion: T-FLAVOR may help determine if tenecteplase should be recommended as a routine clinical strategy before MT for Japanese stroke patients. Trial registration: jRCTs051210055.

12.
Int J Stroke ; 17(5): 494-505, 2022 06.
Article in English | MEDLINE | ID: mdl-34542358

ABSTRACT

BACKGROUND AND AIMS: Nicardipine has strong, rapidly acting antihypertensive activity. The effects of acute systolic blood pressure levels achieved with intravenous nicardipine after onset of intracerebral hemorrhage on clinical outcomes were determined. METHODS: A systematic review and individual participant data analysis of articles before 1 October 2020 identified on PubMed were performed (PROSPERO: CRD42020213857). Prospective studies involving hyperacute intracerebral hemorrhage adults treated with intravenous nicardipine whose outcome was assessed using the modified Rankin Scale were eligible. Outcomes included death or disability at 90 days, defined as the modified Rankin Scale score of 4-6, and hematoma expansion, defined as an increase ≥6 mL from baseline to 24-h computed tomography. SUMMARY OF REVIEW: Three studies met the eligibility criteria. For 1265 patients enrolled (age 62.6 ± 13.0 years, 484 women), death or disability occurred in 38.2% and hematoma expansion occurred in 17.4%. Mean hourly systolic blood pressure during the initial 24 h was positively associated with death or disability (adjusted odds ratio (aOR) 1.12, 95% confidence interval (CI) 1.00-1.26 per 10 mmHg) and hematoma expansion (1.16, 1.02-1.32). Mean hourly systolic blood pressure from 1 h to any timepoint during the initial 24 h was positively associated with death or disability. Later achievement of systolic blood pressure to ≤140 mmHg increased the risk of death or disability (aOR 1.02, 95% CI 1.00-1.05 per hour). CONCLUSIONS: Rapid lowering of systolic blood pressure by continuous administration of intravenous nicardipine during the initial 24 h in hyperacute intracerebral hemorrhage was associated with lower risks of hematoma expansion and 90-day death or disability without increasing serious adverse events.


Subject(s)
Nicardipine , Stroke , Aged , Antihypertensive Agents/therapeutic use , Blood Pressure , Cerebral Hemorrhage/complications , Female , Hematoma/complications , Hematoma/drug therapy , Humans , Male , Middle Aged , Nicardipine/adverse effects , Nicardipine/therapeutic use , Prospective Studies , Stroke/drug therapy , Treatment Outcome
13.
Int J Stroke ; 17(6): 628-636, 2022 07.
Article in English | MEDLINE | ID: mdl-34282985

ABSTRACT

BACKGROUND AND AIM: We determined to investigate the incidence and clinical impact of new cerebral microbleeds after intravenous thrombolysis in patients with acute stroke. METHODS: The THAWS was a multicenter, randomized trial to study the efficacy and safety of intravenous thrombolysis with alteplase in patients with wake-up stroke or unknown onset stroke. Prescheduled T2*-weighted imaging assessed cerebral microbleeds at three time points: baseline, 22-36 h, and 7-14 days. Outcomes included new cerebral microbleeds development, modified Rankin Scale (mRS) ≥3 at 90 days, and change in the National Institutes of Health Stroke Scale (NIHSS) score from 24 h to 7 days. RESULTS: Of all 131 patients randomized in the THAWS trial, 113 patients (mean 74.3 ± 12.6 years, 50 female, 62 allocated to intravenous thrombolysis) were available for analysis. Overall, 46 (41%) had baseline cerebral microbleeds (15 strictly lobar cerebral microbleeds, 14 mixed cerebral microbleeds, and 17 deep cerebral microbleeds). New cerebral microbleeds only emerged in the intravenous thrombolysis group (seven patients, 11%) within a median of 28.3 h, and did not additionally increase within a median of 7.35 days. In adjusted models, number of cerebral microbleeds (relative risk (RR) 1.30, 95% confidence interval (CI): 1.17-1.44), mixed distribution (RR 19.2, 95% CI: 3.94-93.7), and cerebral microbleeds burden ≥5 (RR 44.9, 95% CI: 5.78-349.8) were associated with new cerebral microbleeds. New cerebral microbleeds were associated with an increase in NIHSS score (p = 0.023). Treatment with alteplase in patients with baseline ≥5 cerebral microbleeds resulted in a numerical shift toward worse outcomes on ordinal mRS (median [IQR]; 4 [3-4] vs. 0 [0-3]), compared with those with <5 cerebral microbleeds (common odds ratio 17.1, 95% CI: 0.76-382.8). The association of baseline ≥5 cerebral microbleeds with ordinal mRS score differed according to the treatment group (p interaction = 0.042). CONCLUSION: New cerebral microbleeds developed within 36 h in 11% of the patients after intravenous thrombolysis, and they were significantly associated with mixed-distribution and ≥5 cerebral microbleeds. New cerebral microbleeds development might impede neurological improvement. Furthermore, cerebral microbleeds burden might affect the effect of alteplase.


Subject(s)
Brain Ischemia , Stroke , Brain Ischemia/drug therapy , Cerebral Hemorrhage/complications , Cerebral Hemorrhage/etiology , Female , Fibrinolytic Agents/adverse effects , Humans , Stroke/complications , Thrombolytic Therapy/adverse effects , Thrombolytic Therapy/methods , Tissue Plasminogen Activator/adverse effects , Treatment Outcome
14.
Ther Innov Regul Sci ; 56(2): 220-229, 2022 03.
Article in English | MEDLINE | ID: mdl-34787814

ABSTRACT

BACKGROUND: The International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) is undertaking a major revision of ICH E6 Good Clinical Practice (GCP) decided to involve external stakeholders in ICH-GCP renovation. Activities such as surveys and public conferences have taken place in the United States, European Union, and Japan. For stakeholder engagement in Japan, a designated research group conducted a survey of academic stakeholders. METHODS: A total of 105 academic stakeholders from 18 institutions responded to the survey. The research group developed recommendations reflecting the survey results and the opinions from patients and the public. RESULTS: The survey showed the top four principles needing renovation were (i) informed consent (Chapter 2.9, 12.4% of respondents believed it needed renovation), (ii) systems for quality assurance (Chapter 2.13, 9.5%), (iii) information on an investigational product (Chapter 2.4, 5.7%), and (iv) procedures on clinical trial information (Chapter 2.10, 5.7%). The top three sections identified as needing renovation were: (i) informed consent (Chapter 4.8, 27.6%), (ii) monitoring (Chapter 5.18, 22.9%), and (iii) composition, functions, and operations of the ethics committee (Chapter 3.2, 14.3%). Recommendations included clarification of ICH-GCP's scope, proportionality in various aspects of clinical trials, diversity and liquidity of ethics committee members, modernization of informed consent procedures, variations in monitoring, and regulatory grade when using real-world data. CONCLUSION: The recommendations from Japanese investigators and patients have been submitted to the ICH E6 Expert Working Group, which will strengthen the robustness of the GCP renovation.


Subject(s)
Informed Consent , Research Personnel , European Union , Humans , Japan , Surveys and Questionnaires , United States
15.
Eur Heart J Cardiovasc Pharmacother ; 8(2): 108-117, 2022 02 16.
Article in English | MEDLINE | ID: mdl-33175088

ABSTRACT

AIMS: A mineralocorticoid receptor antagonist (MRA) is effective in patients with chronic heart failure; however, the effects of the early initiation of an MRA in patients with acute heart failure (AHF) have not been elucidated. METHODS AND RESULTS: In this multicentre, randomized, double-blind, placebo-controlled, parallel-group study, we focused on the safety and effectiveness of the treatment with eplerenone, a selective MRA in 300 patients with AHF, that is, 149 in the eplerenone group and 151 in the placebo group in 27 Japanese institutions. The key inclusion criteria were (i) patients aged 20 years or older and (ii) those with left ventricular ejection fraction of ≤40%. The primary outcome was a composite of cardiac death or first re-hospitalization due to cardiovascular disease within 6 months. The mean age of the participants was 66.8 years, 27.3% were women, and the median levels of brain natriuretic peptide were 376.0 pg/mL. The incidences of the primary outcome were 19.5% in the eplerenone group and 17.2% in the placebo group [hazard ratio (HR): 1.09, 95% confidence interval (CI): 0.642-1.855]. In prespecified secondary outcomes, HR for the composite endpoint, cardiovascular death, or first re-hospitalization due to heart failure within 6 months was 0.55 (95% CI: 0.213-1.434). The safety profile for eplerenone was as expected. CONCLUSION: The early initiation of eplerenone in patients with AHF could safely be utilized. The reduction of the incidence of a composite of cardiovascular death or first re-hospitalization for cardiovascular diseases by eplerenone is inconclusive because of inadequate power.


Subject(s)
Heart Failure , Spironolactone , Aged , Eplerenone/adverse effects , Female , Heart Failure/diagnosis , Heart Failure/drug therapy , Humans , Male , Spironolactone/adverse effects , Stroke Volume , Ventricular Function, Left
16.
Stroke ; 53(4): 1226-1234, 2022 Apr.
Article in English | MEDLINE | ID: mdl-34844422

ABSTRACT

BACKGROUND: We evaluated the effect of persistent hyperglycemia on outcomes in 1000 patients with intracerebral hemorrhage enrolled within 4.5 hours of symptom onset. METHODS: We defined moderate and severe hyperglycemia based on serum glucose levels ≥140 mg/dL-<180 and ≥180 mg/dL, respectively, measured at baseline, 24, 48, and 72 hours. Persistent hyperglycemia was defined by 2 consecutive (24 hours apart) serum glucose levels. We evaluated the relationship between moderate and severe hyperglycemia and death or disability (defined by modified Rankin Scale score of 4-6) at 90 days in the overall cohort and in groups defined by preexisting diabetes. RESULTS: In the multivariate analysis, both moderate (odds ratio, 1.8 [95% CI, 1.1-2.8]) and severe (odds ratio, 1.8 [95% CI, 1.2-2.7]) hyperglycemia were associated with higher 90-day death or disability after adjusting for Glasgow Coma Scale score, hematoma volume, presence or absence of intraventricular hemorrhage, hyperlipidemia, cigarette smoking, and hypertension (no interaction between hyperglycemia and preexisting diabetes, P=0.996). Among the patients without preexisting diabetes, both moderate (odds ratio, 1.8 [95% CI, 1.0-3.2]) and severe (odds ratio, 2.0 [95% CI, 1.1-3.7]) hyperglycemia were associated with 90-day death or disability after adjusting for above mentioned potential confounders. Among the patients with preexisting diabetes, moderate and severe hyperglycemia were not associated with 90-day death or disability. CONCLUSIONS: Persistent hyperglycemia, either moderate or severe, increased the risk of death or disability in nondiabetic patients with intracerebral hemorrhage. REGISTRATION: URL: https://www. CLINICALTRIALS: gov; Unique identifier: NCT01176565.


Subject(s)
Diabetes Mellitus , Hyperglycemia , Cerebral Hemorrhage/diagnosis , Diabetes Mellitus/epidemiology , Glucose , Hematoma , Humans , Hyperglycemia/complications
17.
Genes (Basel) ; 12(10)2021 09 28.
Article in English | MEDLINE | ID: mdl-34680932

ABSTRACT

The genotypes of vitamin K epoxide reductase complex 1 (VKORC1) and cytochrome P450 2C9 (CYP2C9) can influence therapeutic warfarin doses. Conversely, nongenetic factors, especially renal function, are associated with warfarin maintenance doses; however, the optimal algorithm for considering genes and renal dysfunction has not been established. This single-center prospective cohort study aimed to evaluate the factors affecting warfarin maintenance doses and develop pharmacogenetics-guided algorithms, including the factors of renal impairment and others. To commence, 176 outpatients who were prescribed warfarin for thromboembolic stroke prophylaxis in the stroke center, were enrolled. Patient characteristics, blood test results, dietary vitamin K intake, and CYP2C9 and VKORC1 (-1639G>A) genotypes were recorded. CYP2C9 and VKORC1 (-1639G>A) genotyping revealed that 80% of the patients had CYP2C9 *1/*1 and VKORC1 mutant AA genotypes. Multiple linear regression analysis demonstrated that the optimal pharmacogenetics-based model comprised age, body surface area, estimated glomerular filtration rate (eGFR), genotypes, vitamin K intake, aspartate aminotransferase levels, and alcohol intake. eGFR exercised a significant impact on the maintenance doses, as an increase in eGFR of 10 mL/min/1.73 m2 escalated the warfarin maintenance dose by 0.6 mg. Reduced eGFR was related to lower warfarin maintenance doses, independent of VKORC1 and CYP2C9 genotypes in Japanese patients.


Subject(s)
Anticoagulants/administration & dosage , Drug Dosage Calculations , Glomerular Filtration Rate , Pharmacogenomic Variants , Warfarin/administration & dosage , Aged , Aged, 80 and over , Anticoagulants/pharmacokinetics , Cytochrome P-450 CYP2C9/genetics , Female , Humans , Kidney/metabolism , Male , Vitamin K Epoxide Reductases/genetics , Warfarin/pharmacokinetics
18.
J Am Heart Assoc ; 10(16): e020364, 2021 08 17.
Article in English | MEDLINE | ID: mdl-34387101

ABSTRACT

Background To explore how the clinical impact of heart rate (HR) and heart rate variabilities (HRV) during the initial 24 hours after acute intracerebral hemorrhage (ICH) contribute to worse clinical outcomes. Methods and Results In the ATACH-2 (Antihypertensive Treatment in Intracerebral Hemorrhage 2) trial, the HR was recorded for every 15 minutes from baseline to 1 hour and hourly during the initial 24 hours post-randomization. We calculated the following: mean, standard deviation, coefficient of variation, successive variation, and average real variability (ARV). Outcomes were hematoma expansion at 24 hours and unfavorable functional outcome, defined as modified Rankin Scale score 4 to 6 at 90 days. Of the 1000 subjects in ATACH-2, 994 with available HR data were included in the analyses. Overall, 262 experienced hematoma expansion, and 362 had unfavorable outcomes. Increased mean HR was linearly associated with unfavorable outcome (per 10 bpm increase adjusted odds ratio [aOR], 1.31, 95% CI, 1.14-1.50) but not with hematoma expansion, while HR-ARV was associated with hematoma expansion (aOR, 1.06, 95% CI, 1.01-1.12) and unfavorable outcome (aOR, 1.07, 95% CI, 1.01-1.3). Every 10-bpm increase in mean HR increased the probability of unfavorable outcome by 4.3%, while every 1 increase in HR-ARV increased the probability of hematoma expansion by 1.1% and unfavorable outcome by 1.3%. Conclusions Increased mean HR and HR-ARV within the initial 24 hours were independently associated with unfavorable outcome in acute ICH. Moreover, HR-ARV was associated with hematoma expansion at 24 hours. This may have future therapeutic implications to accommodate HR and HRV in acute ICH. Registration URL: https://www.clinicaltrials.gov; Unique Identifier: NCT01176565.


Subject(s)
Cerebral Hemorrhage/physiopathology , Heart Rate , Hematoma/physiopathology , Aged , Antihypertensive Agents/therapeutic use , Cerebral Hemorrhage/diagnosis , Cerebral Hemorrhage/drug therapy , Disability Evaluation , Disease Progression , Female , Functional Status , Hematoma/diagnosis , Hematoma/drug therapy , Humans , Male , Middle Aged , Predictive Value of Tests , Randomized Controlled Trials as Topic , Risk Assessment , Risk Factors , Time Factors , Treatment Outcome
19.
Neurology ; 97(9): e913-e921, 2021 08 31.
Article in English | MEDLINE | ID: mdl-34210824

ABSTRACT

BACKGROUND AND OBJECTIVE: The clinical effect of renal impairment on intracerebral hemorrhage (ICH) is unknown. This study sought to assess whether estimated glomerular filtration rate (eGFR) affects clinical outcomes or modifies the efficacy of intensive systolic blood pressure (BP) control (target, 110-139 mm Hg) against the standard (target, 140-179 mm Hg) among patients with ICH. METHODS: We conducted post hoc analyses of ATACH-2, a randomized, 2-group, open-label trial. The baseline eGFR of each eligible patient was calculated using the Chronic Kidney Disease Epidemiology Collaboration equation. The outcome of interest was death or disability at 90 days. Multivariate logistic regression models were used for analysis. RESULTS: Among the 1,000 patients randomized, 974 were analyzed. The median baseline eGFR was 88 (interquartile range, 68, 99) mL/min/1.73 m2; 451 (46.3%), 363 (37.3%), and 160 (16.4%) patients had baseline eGFR values of ≥90, 60-89, and <60 mL/min/1.73 m2, respectively. Compared with normal eGFR (≥90 mL/min/1.73 m2), higher odds of death or disability were noted among those with eGFR values of <60 mL/min/1.73 m2 (adjusted odds ratio [OR], 2.02; 95% confidence interval [CI], 1.25-3.26) but not among those with eGFR values of 60-89 mL/min/1.73 m2 (OR, 1.01; 95% CI, 0.70-1.46). The odds of death or disability were significantly higher in the intensive arm among patients with decreased eGFR; the ORs were 0.89 (95% CI, 0.55-1.44), 1.13 (0.68-1.89), and 3.60 (1.47-8.80) in patients with eGFR values of ≥90, 60-89, and <60 mL/min/1.73 m2, respectively (p for interaction = 0.02). DISCUSSION: Decreased eGFR is associated with unfavorable outcomes following ICH. The statistically significant interaction between the eGFR group and treatment assignment raised safety concerns for the intensive BP-lowering therapy among patients with renal impairment. TRIAL REGISTRATION INFORMATION: Clinicaltrials.gov identifier: NCT01176565. CLASSIFICATION OF EVIDENCE: This study provides Class II evidence that in spontaneous ICH, decreased eGFR identifies patients at risk of death or disability following intensive BP control.


Subject(s)
Antihypertensive Agents/therapeutic use , Cerebral Hemorrhage/complications , Cerebral Hemorrhage/drug therapy , Nicardipine/therapeutic use , Renal Insufficiency/complications , Aged , Blood Pressure/drug effects , Female , Glomerular Filtration Rate , Humans , Male , Middle Aged , Treatment Outcome
20.
Clin Exp Nephrol ; 25(12): 1319-1328, 2021 Dec.
Article in English | MEDLINE | ID: mdl-34255252

ABSTRACT

BACKGROUND: There are few reports on the significance for the combined evaluation of blood humoral factors and urinary biomarkers in terms of worsening renal function (WRF) after coronary angiography (CAG)/percutaneous coronary arterial intervention (PCI). METHOD AND RESULTS: Urinary liver type-fatty acid-binding protein (L-FABP), neutrophil gelatinase associated lipocalin (NGAL), and adrenomedullin (AM) were measured less than 24 h before and 3 h, 6 h, 1 day, and 2 days after CAG/PCI. WRF was defined as a > 20% decrease in the estimated GFR. WRF occurred in seven of 100 patients and the increase in L-FABP/creatinine (Cr) at 1 day after CAG/PCI was significantly higher in the WRF group than in the non-WRF group. Plasma B-type natriuretic peptide (BNP) before CAG/PCI and L-FABP/Cr at 1 day after CAG/PCI were independent predictors for WRF. The areas under the receiver-operating characteristic curves were as follows: 0.760 for BNP before CAG/PCI, 0.731 for L-FABP/Cr at 1 day after CAG/PCI, and 0.892 for BNP and L-FABP/Cr. Urinary AM levels after PCI/CAG were negatively correlated only to serum potassium levels. Gene expressions of AM and AM-receptor were detectable in renal tubule epithelial cells. AM increased intracellular second messenger levels in a dose-dependent manner. CONCLUSIONS: Our results suggest that combined evaluation of plasma BNP and urinary L-FABP/Cr is useful as a predictor of renal dysfunction in CAG/PCI patients.


Subject(s)
Coronary Artery Disease/therapy , Fatty Acid-Binding Proteins/urine , Glomerular Filtration Rate , Kidney Diseases/diagnosis , Kidney/physiopathology , Natriuretic Peptide, Brain/blood , Percutaneous Coronary Intervention/adverse effects , Aged , Aged, 80 and over , Biomarkers/blood , Biomarkers/urine , Cells, Cultured , Coronary Angiography/adverse effects , Coronary Artery Disease/diagnostic imaging , Creatinine/urine , Female , Humans , Kidney/metabolism , Kidney Diseases/blood , Kidney Diseases/physiopathology , Kidney Diseases/urine , Male , Middle Aged , Predictive Value of Tests , Prospective Studies , Time Factors , Treatment Outcome
SELECTION OF CITATIONS
SEARCH DETAIL
...