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Clinical Trial Summary

Patients with neovascular age-related macular degeneration (AMD) scheduled to receive intravitreal (IVT) Ranibizumab injection will be randomized to receive one of three topical anesthetics: (1) tetracaine drop (gtt) + lidocaine pledget to the injection site for 10 seconds (2) tetracaine gtt alone and (3) cocaine gtt alone. A questionnaire will be conducted immediately after and 15 minutes after the injection, to assess for pain.


Clinical Trial Description

All patients scheduled to receive intravitreal Ranibizumab for the treatment of neovascular AMD will be evaluated for inclusion into the study. After a positive evaluation, the study will be explained to the patient, the Letter of Explanation reviewed with the patient and informed consent approved if patient agrees to participate. Demographic data of sex and age will be recorded. As well the number of previous intravitreal injections will be recorded ( none, 2 - 5 and > 5 ). A nurse will then proceed to select an opaque envelope from a box of identical envelopes. The envelope will contain the topical anesthetic agent to be used. The randomization code linking each patient to their anesthetic will be stored in a secure location, and only accessed at the completion of the trial. The anesthetic procedure will be performed by someone other than the surgeon who will perform the IVT injection. After a minute of the anesthetic application, the surgeon, blinded to the anesthetic intervention, will perform the IVT injection of Ranibizumab. Immediately following the injection, a blinded observer will first explain the Pain Questionnaire, and then conduct it. Also at this time, the physician who performed the injection will complete the Wong-Baker Pain Questionnaire. The patient will then be asked to wait in a room for an additional 15 minutes, where the same observer will return and the Pain Questionnaire will be conducted a second time. ;


Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Factorial Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT01224847
Study type Interventional
Source Lawson Health Research Institute
Contact
Status Completed
Phase N/A
Start date October 2009
Completion date November 2009

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