Approved Products for the Treatment of CMV Retinitis in Immunocompromised Patients William M. Boyd, M.D. Division of Anti-inflammatory, Analgesic, and.

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Presentation transcript:

Approved Products for the Treatment of CMV Retinitis in Immunocompromised Patients William M. Boyd, M.D. Division of Anti-inflammatory, Analgesic, and Ophthalmologic Drug Products HFD-550

Approved Products Cytovene-IV (ganciclovir) Foscavir Injection (foscarnet) Cytovene Capsules (ganciclovir) Vitrasert Implant (ganciclovir) Vistide Injection (cidofovir) Vitravene for Injection (fomvirsen)

Cytovene-IV (ganciclovir) Approved June 23, 1989 Clinical Data Source(s) for Approval –Study #1 - randomized, controlled trial, immediate versus delayed treatment (N = 42) –Study #2 - nonrandomized, retrospective, immediate versus delayed treatment (N = 41)

Cytovene-IV (ganciclovir) Primary Endpoints for Study #1 and #2: –Time to progression of CMV retinitis Primary Endpoint Analysis –Study #1 (photos): median time to progression of 50 days for immediate treatment; 14 days for delayed –Study #2 (exam): median time to progression of 71 days for immediate treatment; 29 days for delayed

Foscavir Injection (foscarnet) Approved September 27, 1991 Clinical Data Source(s) for Approval –randomized, open label, controlled trial, immediate versus delayed treatment (N = 24) Primary Endpoint –Time to progression of CMV retinitis

Foscavir Injection (foscarnet) Primary Endpoint Analysis –median time to progression of 93 days for immediate treatment; 22 days for delayed (photos)

Cytovene Capsules (ganciclovir) Approved December 22, 1994 Not approved for induction due to poor bioavailability (5% available) Study Design for Maintenance Indication –three randomized, open label trials with Cytovene-IV as comparator (N total = 505)

Vitrasert Implant (ganciclovir) Approved March 4, 1996 Clinical Data Source(s) for Approval –randomized, parallel, ganciclovir implant versus ganciclovir IV (N =188) Primary Endpoint –Time to progression of CMV retinitis

Vitrasert Implant (ganciclovir) Primary Endpoint Analysis –median time to progression of 210 days for immediate treatment; 120 days for delayed (photos)

Vistide Injection (cidofovir) Approved June 26, 1996 Clinical Data Source(s) for Approval –randomized, open label, controlled trial, immediate versus delayed treatment (N = 48) Primary Endpoint –Time to progression of CMV retinitis

Vistide Injection (cidofovir) Primary Endpoint Analysis –median time to progression of 120 days for immediate treatment; 22 days for delayed (photos)

Vitravene for Injection (fomvirsen) Approved August 26, 1998 Clinical Data Source(s) for Approval –limited, open label, controlled clinical studies, immediate versus delayed treatment (N = 80 eyes) Primary Endpoint –Time to progression of CMV retinitis

Vitravene for Injection (fomvirsen) Primary Endpoint Analysis –median time to progression of 80 days for immediate treatment; 14 days for delayed (photos)

Approved Products

Approved Products for the Treatment of CMV Retinitis in Immunocompromised Patients William M. Boyd, M.D. Division of Anti-inflammatory, Analgesic, and Ophthalmologic Drug Products HFD-550

Valcyt 450 mg Tablets (valganciclovir hydrochloride) NDA

valganciclovir tablets NDA submitted September 28, 2000 Clinical Data Source(s) for Approval –randomized, open label, parallel group, valganciclovir versus ganciclovir IV (N=160) Primary Endpoint –proportion of patients with disease progression at week 4

valganciclovir tablets Primary Endpoint Analysis –7 subjects in valganciclovir arm and 7 subjects in the ganciclovir treatment arm had CMV progression at week 4 (photos)

valganciclovir tablets Analysis of CMV Retinitis Progression by Week 4 Compared to Baseline (Medical Officer’s Masked Photographic Assessment)

valganciclovir tablets