Safety and Tolerability Study of the Helical Intravitreal Triamcinolone Implant in Diabetic Macular Edema

• Status: Completed
• Trial end date: 2009-05-01
• Target enrollment: 0
• Participant gender: All

Summary

This Phase 1 study will evaluate the safety, tolerability and duration of effect of a helical intravitreal triamcinolone implant for the treatment of diabetic macular edema over a three-year period.

• Phase: Phase 1
• Accepts Healthy Volunteers?: No

Details

• Lead Sponsor: SurModics, Inc.
• Treatments: Triamcinolone; Triamcinolone Acetonide; Triamcinolone diacetate; Triamcinolone hexacetonide

Criteria

Inclusion Criteria:

• Patients with clinically observable macular edema associated with diabetic retinopathy in study eye

• Macular edema in study eye is associated with

1. visual acuity of 20/40 or worse; and

2. retinal thickening in the fovea as seen on biomicroscopic examination

3. angiographic evidence of leakage involving the perifoveal capillary net

• Failure of macular edema to improve with prior macular photocoagulation, or the patient is unlikely to benefit from macular photocoagulation in the opinion of the investigator

• Patients must be 18 years of age and older

• Patients must be willing and able to return for scheduled follow up examinations for 3 years after initial surgery.

• Patients must sign and be given a copy of the written Informed Consent form.

Exclusion Criteria:

• Monocular, or vision worse than 20/400 in the fellow eye

• Visual acuity worse than 20/200 20/200 and < 34 letters read in the study eye

• Use of depot periocular steroids in the study eye within the past 30 days

• Current use of >15 mg/day of oral steroids

• Known steroid responder

• Ocular hypertension > 22 mmHg in the study eye or need for more than one medication to maintain IOP < 22 mmHg.

• Cup to disc ratio of > 0.8 in the study eye

• Prior filtration surgery or glaucoma implant surgery in the study eye

• Any active ocular infection in either eye

• History of herpetic ocular infection in the study eye

• Macular ischemia, defined as angiographic evidence of enlargement of the foveal avascular zone to 1 disc area or larger, centered on the fovea

• Macular or panretinal photocoagulation treatment in the study eye within the past 90 days; laser capsulotomy within the past 90 days

• Planned or known need for ocular surgery in the study eye within 90 days after enrollment and treatment

• Any condition that precludes the subject's ability to comply with study requirements, including examinations or the completion of the study; or any condition that precludes the examiner's ability to obtain reliable fundus photography, angiography, or OCT images

• Females who are pregnant or lactating, and premenopausal females who are unwilling to use a medically accepted method of birth control for the duration of the study

• Participation in another investigational trial within 30 days prior to enrollment or during the study period

• Uncontrolled hypertension (systolic BP > 160 mm Hg and/or diastolic BP > 90 mmHg)

• Uncontrolled diabetes (HbA1c > 13)

• Chronic renal failure requiring dialysis or anticipated renal transplant

• Retinal or choroidal neovascularization in the study eye; anticipated need for panretinal photocoagulation within the next 30 days

• Macular edema in the study eye known to be due to a cause other than diabetic retinopathy

• Use of immunosuppressant drugs