Please select the eligibility criteria that correspond to the clinical trial below.
Title: The Antihypertensives and Vascular, Endothelial and Cognitive Function Trial (AVEC Trial)
Brief Summary: The purpose of this study is to examine the effects of blood pressure medications on cognition and blood flow in hypertensive elderly patients with cognitive impairment. The hypothesis is that treatment with an angiotensin receptor blocker (ARB) or an angiotensin-converting enzyme inhibitor (ACEI) will be associated with a slower rate of further cognitive decline, improved cerebral blood flow and its regulation, and preserved physical function as compared to treatment with a diuretic (HCTZ), independent of blood pressure level.


Options:
A: INCLUSION:

Small subcortical ischemic stroke or subcortical TIA.

Inclusion criteria are based on TOAST criteria supplemented by required MRI data. All of the following criteria must be met:

* One of the lacunar stroke clinical syndromes (adapted from Fisher) lasting \> 24 hrs within the past 6 months
* Absence of signs or symptoms of cortical dysfunction such as aphasia, apraxia, agnosia, agraphia, homonymous visual field defect, etc.
* No ipsilateral cervical carotid stenosis (≥50%) by a reliable imaging modality done in an approved laboratory since the qualifying small subcortical stroke (S3), if hemispheric.
* No major-risk cardioembolic sources requiring anticoagulation or other specific therapy. Minor-risk cardioembolic sources will be permitted if anticoagulation is not prescribed by the patient's primary care physician.
* Subcortical TIA with corresponding lesion on DWI.
* MRI evidence of S3: a. Presence of an S3 (1.5 and 2 cm in diameter corresponding to the qualifying event on DWI; when TIA, ADC image must confirm lesion or T2/FLAIR (hyperintense lesions) (required for all brainstem events) OR multiple S3s on FLAIR/TI(\<1.5 cm in diameter) (hypointense lesions) b. Absence of cortical stroke and large subcortical stroke (recent or remote).

EXCLUSION:

To be eligible for entry into the study, the patient must not meet any of the criteria listed below:

* Disabling stroke (Modified Rankin Scale less than or equal to 4)
* Previous intracranial hemorrhage (excluding traumatic) or hemorrhagic stroke
* Age under 30 years
* High risk of bleeding (e.g. recurrent GI or GU bleeding, active peptic ulcer disease, etc)
* Anticipated requirement for long-term use of anticoagulants (e.g. recurrent DVT) or other antiplatelets
* Prior cortical stroke (diagnosed either clinically or by neuroimaging), or prior cortical or retinal TIA
* Prior ipsilateral carotid endarterectomy
* Impaired renal function: GFR \<40
* Intolerance or contraindications to aspirin or clopidogrel (including thrombocytopenia, prolonged INR)
* A score \< 24 (adjusted for age and education) on the Folstein Mini Mental Status Examination
* Medical contraindication to MRI
* Pregnancy or women of child-bearing potential who are not following an effective method of contraception
* Geographic or social factors making study participation impractical
* Unable or unwilling to provide informed consent
* Unlikely to be compliant with therapy/unwilling to return for frequent clinic visits
* Patients concurrently participating in another study with an investigational drug or device
* Other likely specific cause of stroke (e.g. dissection, vasculitis, prothrombotic diathesis, drug abuse)
B: Inclusion Criteria:

* At least 50 years old

Systolic blood pressure of

* 130 - 180 mm Hg on 0 or 1 medication
* 130 - 170 mm Hg on up to 2 medications
* 130 - 160 mm Hg on up to 3 medications
* 130 - 150 mm Hg on up to 4 medications

Risk (one or more of the following)

1. Presence of clinical or subclinical cardiovascular disease other than stroke
2. CKD, defined as eGFR 20 - 59 ml/min/1.73m2
3. A Framingham Risk Score for 10-year CVD risk ≥ 15%
4. Age greater than 75 years

Exclusion Criteria:

* An indication for a specific BP lowering medication that the person is not taking and the person has not been documented to be intolerant of the medication class.
* Known secondary cause of hypertension that causes concern regarding safety of the protocol.
* One minute standing SBP \< 110 mm Hg.
* Proteinuria in the following ranges (based on a measurement within the past 6 months)

  * 24 hour urinary protein excretion ≥1 g/day, or
  * 24 hour urinary albumin excretion ≥ 600 mg/day, or
  * spot urine protein/creatinine ratio ≥ 1 g/g creatinine, or
  * spot urine albumin/creatinine ratio ≥ 600 mg/g creatinine, or
  * urine dipstick ≥ 2+ protein
* Arm circumference too large or small to allow accurate blood pressure measurement with available devices
* Diabetes mellitus,
* History of stroke (not CE or stenting)
* Diagnosis of polycystic kidney disease
* Glomerulonephritis treated with or likely to be treated with immunosuppressive therapy
* eGFR \< 20 ml/min /1.73m2 or end-stage renal disease (ESRD)
* Cardiovascular event or procedure (as defined above as clinical CVD for study entry) or hospitalization for unstable angina within last 3 months
* Symptomatic heart failure within the past 6 months or left ventricular ejection fraction (by any method) \< 35%
* A medical condition likely to limit survival to less than 3 years or a malignancy other than non-melanoma skin cancer within the last 2 years
* Any factors judged by the clinic team to be likely to limit adherence to interventions.
* Failure to obtain informed consent from participant
* Currently participating in another clinical trial (intervention study). Note: Patient must wait until the completion of his/her activities or the completion of the other trial before being screened for SPRINT.
* Living in the same household as an already randomized SPRINT participant
* Any organ transplant
* Unintentional weight loss \> 10% in last 6 months
* Pregnancy, currently trying to become pregnant, or of child-bearing potential and not using birth control.
C: Inclusion criteria:

Male or female subjects 55 year or older who have suffered an ischemic stroke within the past 90 days and who meet all other inclusion criteria. Include also patients of ages 50 - 54 years and/or 90 to 120 days after the qualifying stroke provided the patient has at least two of the following additional risk factors:

* Diabetes mellitus
* Hypertension (systolic BP ¿ 140 or diastolic BP ¿ 90)
* Smoker at time of qualifying stroke
* Obesity (BMI\>30; BMI=weight (kg)/\[height (m)\]2)
* Previous vascular disease (stroke, MI, or peripheral arterial disease prior to qualifying stroke)
* End-organ-damage (retinopathy, LVH, or microalbuminuria)
* Hyperlipidemia

Exclusion criteria:

hemorrhagic stroke (must be ruled out by imaging);unable to give informed consent; known brain tumor, severe renal or hepatic insufficiency, current active peptic ulcer disease, severe coronary artery disease including unstable angina pectoris or an MI within the previous 3 months,or history of a hemostatic disorder or systemic bleeding ;hyperkalemia;uncorrected volume or sodium depletion; pre-stroke history of dementia;modified Rankin score greater than 4;qualifying stroke induced by surgical or cardiovascular procedure;uncontrolled hypertension at entry above 180/110 mmHg (goal BPs are lower); SBP 120 mmHg or less for hospitalized patients; currently taking an ARB and not able or willing to switch to alternative; required or planned continuing treatment with antithrombotics or anticoagulants including heparin or warfarin or non-study platelet inhibitors; syndrome of asthma, rhinitis and nasal polyps;scheduled for major surgery, carotid endarterectomy, or carotid angioplasty (4 weeks post surgery is allowed);unlikely to be released from hospital following the qualifying stroke or presence of a severe disability likely to lead to being bedridden or demented or a non-vascular disease or condition which makes it unlikely that the patient will survive to the end of the trial; history of thrombocytopenia or neutropenia.
D: Inclusion Criteria:

* 60 years or older
* Hypertension
* Cognitive criteria: score either 10 or less out of 15 for the executive clock draw test 1 (CLOX1) or less than or equal to 1 standard deviation from the corresponding age specific mean on the immediate memory subtest

Exclusion Criteria:

* Intolerance to ACEI or ARB
* History of congestive heart failure
* History of diabetes mellitus
* History of stroke (less than 6 months)

Answer: D