Please select the eligibility criteria that correspond to the clinical trial below.
Title: DIRECT: DIabetic Retinopathy Candesartan Trials. Effects of Candesartan Cilexetil (Candesartan) on Diabetic Retinopathy in Type 1 Diabetic Patients With Retinopathy.
Brief Summary: The primary objective is to determine whether candesartan, compared to placebo reduces the progression of diabetic retinopathy in normotensive, normoalbuminuric type 1 diabetic patients with retinopathy.

The secondary objective is to determine whether candesartan, compared to placebo, reduces the incidence of clinically significant macular oedema (CSME) and/or proliferative diabetic retinopathy (PDR) and beneficially influences the rate of change in urinary albumin excretion rate (UAER).

This study is part of the DIRECT Programme also including a primary prevention study of diabetic retinopathy in type 1 diabetes and a secondary prevention study in type 2 diabetes. The primary objective for all three pooled studies is to determine whether candesartan, compared to placebo, reduces the incidence of microalbuminuria in type 1 and type 2 diabetic patients.


Options:
A: Inclusion Criteria:

* Male or female aged 18 - 55 years with type 1 diabetes diagnosed before age of 36 years and in need for continuous insulin treatment within 1 year of diagnosis of diabetes are included.
* Duration of diabetes for \> 1 year and \< 20 years with stable diabetic therapy within last 6 months.
* Patients with untreated resting mean sitting SBP \< 130 mmHg, mean sitting DBP \< 85 mmHg and with retinal photograph grading level \> 20/10 up to \< 47/47 (on ETDRS severity scale).

Exclusion Criteria:

* Patients with the following conditions are excluded from participation on the study:
* Cataract or media opacity of a degree which precludes taking gradable retinal photographs
* Angle closure glaucoma, which precludes pharmacological dilatation of the pupil
* History or presence of proliferative retinopathy
* History or presence of clinical significant macular oedema (CSME)
* History or evidence of photocoagulation of the retina
* Other retinal conditions which may mask assessment, eg, retinal vein occlusion
* Positive micral dipstick test
* Presence of secondary diabetes
* Pregnant or lactating women or women of child bearing potential not practicing an adequate method of contraception
* Need of treatment with ACE-inhibitor
* Haemodynamically significant aortic or mitral valve stenosis
* Known renal artery stenosis or kidney transplantation
* Hypersensitivity to study drug
* Severe concomitant disease which may interfere with the assessment of the patient, eg, malignancy, as judged by the investigator
B: Inclusion Criteria:

* Type 1 diabetes diagnosed before age of 36 years and in need for continuous insulin treatment within 1 year of diagnosis of diabetes are included.
* Duration of diabetes for \> 1 year and \< 15 years with stable diabetic therapy within last 6 months.
* Patients with untreated resting mean sitting SBP \< 130 mmHg, mean sitting DBP \< 85 mmHg and with retinal photograph grading level 10/10 (on ETDRS severity scale).

Exclusion Criteria:

* Patients with the following conditions are excluded from participation in the study:
* Cataract or media opacity of a degree which precludes taking gradable retinal photographs
* Angle closure glaucoma, which precludes pharmacological dilatation of the pupil
* History of retinopathy
* History or presence of clinical significant macular oedema (CSME)
* History or evidence of photocoagulation of the retina Other retinal conditions which may mask assessment, eg, retinal vein occlusion
* Positive micral dipstick test
* Presence of secondary diabetes
* Pregnant or lactating women or women of child bearing potential not practicing an adequate method of contraception
* Need of treatment with ACE-inhibitor
* Haemodynamically significant aortic or mitral valve stenosis
* Known renal artery stenosis or kidney transplantation
* Hypersensitivity to study drug
* Severe concomitant disease which may interfere with the assessment of the patient, eg, malignancy, as judged by the investigator
C: Inclusion Criteria:

* Male or female aged 37 - 75 years with type 2 diabetes diagnosed at age of 36 years or thereafter.
* Duration of diabetes for \> 1 year and \< 20 years with stable diabetic therapy within last 6 months.
* Patients with untreated resting mean sitting SBP \< 130 mmHg and mean sitting DBP \< 85 or treated resting mean SBP \< 160 mmHg and mean sitting DBP \< 90 mmHg with retinal photograph grading level \>20/10 up to \< 47/47 (on ETDRS severity scale).

Exclusion Criteria:

* Patients with the following conditions are excluded from participation in the study:
* Cataract or media opacity of a degree which precludes taking gradable retinal photographs
* Angle closure glaucoma, which precludes pharmacological dilatation of the pupil
* History of or presence of proliferative retinopathy
* History or presence of clinical significant macular oedema (CSME)
* History or evidence of photocoagulation of the retina
* Other retinal conditions which may mask assessment, eg, retinal vein occlusion
* Positive micral dipstick test
* Presence of secondary diabetes
* Pregnant or lactating women or women of child bearing potential not practicing an adequate method of contraception
* Need of treatment with ACE-inhibitor
* Haemodynamically significant aortic or mitral valve stenosis
* Known renal artery stenosis or kidney transplantation
* Hypersensitivity to study drug
* Severe concomitant disease which may interfere with the assessment of the patient, eg, malignancy, as judged by the investigator
D: Inclusion Criteria:

* Signed informed consent
* Age \>=50 years
* Active primary or recurrent subfoveal choroidal neovascularization (CNV) lesions secondary to age-related macular degeneration (AMD) in the study eye
* Lesions with occult CNV or with some classic CNV component are permissible. However, if classic CNV (well-demarcated hyperfluorescence boundaries in the early phase of the fluorescein angiogram) is present, the area of classic CNV must be \<50% of the total lesion size.
* The total area of CNV (including both classic and occult components) encompassed within the lesion must be \>=50% of the total lesion area.
* The total lesion area must be \<=12 disc areas (DA) in size.
* Best corrected visual acuity, using Early Treatment of Diabetic Retinopathy Study (ETDRS) charts, of 20/40 to 20/320 (Snellen equivalent) in the study eye

Exclusion Criteria:

* Prior treatment with verteporfin, external-beam radiation therapy, or transpupillary thermotherapy (TTT) in the study eye
* Treatment with verteporfin in the non-study eye less than 7 days preceding Day 0
* Previous participation in a clinical trial (for either eye) involving anti-angiogenic drugs (pegaptanib, ranibizumab, anecortave acetate, protein kinase C inhibitors, etc.)
* Previous intravitreal drug delivery (e.g., intravitreal corticosteroid injection or device implantation) in the study eye
* Previous subfoveal focal laser photocoagulation in the study eye
* Laser photocoagulation (juxtafoveal or extrafoveal) in the study eye within 1 month preceding Day 0
* History of vitrectomy surgery in the study eye
* History of submacular surgery or other surgical intervention for AMD in the study eye
* Previous participation in any studies of investigational drugs within 1 month preceding Day 0 (excluding vitamins and minerals)
* Subretinal hemorrhage in the study eye that involves the center of the fovea, if the size of the hemorrhage is either \>=50% of the total lesion area or \>=1 disc area in size
* Subfoveal fibrosis or atrophy in the study eye
* CNV in either eye due to other causes, such as ocular histoplasmosis, trauma, or pathologic myopia
* Retinal pigment epithelial tear involving the macula in the study eye
* Any concurrent intraocular condition in the study eye (e.g., cataract or diabetic retinopathy) that, in the opinion of the investigator, could either: (1) Require medical or surgical intervention during the 24-month study period to prevent or treat visual loss that might result from that condition, or (2) If allowed to progress untreated, could likely contribute to loss of at least 2 Snellen equivalent lines of best corrected visual acuity over the 24-month study period
* Active intraocular inflammation (grade trace or above) in the study eye
* Current vitreous hemorrhage in the study eye
* History of rhegmatogenous retinal detachment or macular hole (Stage 3 or 4) in the study eye
* History of idiopathic or autoimmune-associated uveitis in either eye
* Infectious conjunctivitis, keratitis, scleritis, or endophthalmitis in either eye
* Aphakia or absence of the posterior capsule in the study eye
* Spherical equivalent of the refractive error in the study eye demonstrating more than -8 diopters of myopia
* Intraocular surgery (including cataract surgery) in the study eye within 2 months preceding Day 0
* Uncontrolled glaucoma in the study eye (defined as intraocular pressure \>= 30 mmHg despite treatment with anti-glaucoma medication)
* History of glaucoma filtering surgery in the study eye
* History of corneal transplant in the study eye
* Premenopausal women not using adequate contraception
* History of other disease, metabolic dysfunction, physical examination finding, or clinical laboratory finding giving reasonable suspicion of a disease or condition that contraindicates the use of an investigational drug or that might affect interpretation of the results of the study or render the subject at high risk for treatment complications
* Current treatment for active systemic infection
* History of allergy to fluorescein, not amenable to treatment
* Inability to obtain fundus photographs or fluorescein angiograms of sufficient quality to be analyzed and graded by the central reading center
* Inability to comply with study or follow up procedures

Answer: A