Valcyte® (valganciclovir) is an oral antiviral agent that is highly active
against human herpesvirus 5, also known as cytomegalovirus (CMV).
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Valcyte is used in immunocompromised patients to prevent CMV disease in kidney,
heart and kidney-pancreas solid organ transplant (SOT) recipients at high risk
and to treat CMV retinitis in people with acquired immunodeficiency syndrome
(AIDS). It is a highly bioavailable orally administered prodrug of ganciclovir.
Valcyte tablets are indicated for the treatment of cytomegalovirus (CMV)
retinitis in patients with acquired immunodeficiency syndrome (AIDS)
Valcyte is indicated for the prevention of cytomegalovirus (CMV) disease in
kidney, heart, and kidney-pancreas transplant patients at high risk (Donor CMV
seropositive/Recipient CMV seronegative
[D+/R-]).
Valcyte is not indicated for use in liver transplant patients
The safety and efficacy of Valcyte for the prevention of CMV disease in other
solid organ transplant patients such as lung transplant patients have not been
established.
Safety Information:
WARNING: The clinical toxicity of Valcyte, which is metabolized to
ganciclovir, includes granulocytopenia, anemia and thrombocytopenia. In animal
studies, ganciclovir was carcinogenic, teratogenic and caused aspermatogenesis.
Valcyte tablets should not be administered if the absolute neutrophil count is
less than 500 cells/µL, the platelet count is less than 25,000/µL, or the
hemoglobin is less than 8 g/dL. Severe leukopenia, neutropenia, anemia,
thrombocytopenia, pancytopenia, bone marrow depression, and aplastic anemia
have been observed in patients treated with Valcyte tablets (and ganciclovir).
Other adverse events reported with a frequency of ≥5% included diarrhea,
tremors, fever, , nausea, headache, vomiting, insomnia, allograft rejection,
abdominal pain, retinal detachment, peripheral neuropathy, hypertension and
paresthesia.
In liver transplant patients, there was a significantly higher incidence of
tissue-invasive CMV disease in the Valcyte-treated group compared with the oral
ganciclovir group (see CLINICAL TRIALS in the complete product information).