Immune Thrombocytopenic Purpura (ITP) Treatments
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Brand Name
Tavalisse
Generic Name
Fostamatinib
View Brand Information FDA approval date: May 09, 2018
Form: Tablet
What is Tavalisse (Fostamatinib)?
TAVALISSE is indicated for the treatment of thrombocytopenia in adult patients with chronic immune thrombocytopenia who have had an insufficient response to a previous treatment. TAVALISSE is a kinase inhibitor indicated for the treatment of thrombocytopenia in adult patients with chronic immune thrombocytopenia who have had an insufficient response to a previous treatment.
Approved To Treat
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Related Latest Advances
Brand Information
TAVALISSE (FOSTAMATINIB)
1INDICATIONS AND USAGE
TAVALISSE is indicated for the treatment of thrombocytopenia in adult patients with chronic immune thrombocytopenia (ITP) who have had an insufficient response to a previous treatment.
2DOSAGE FORMS AND STRENGTHS
TAVALISSE is available as:
- 100 mg tablet: orange, film-coated, round, biconvex tablets debossed with "100" on one side and "R" on the reverse side.
- 150 mg tablet: orange, film-coated, oval, biconvex tablets debossed with "150" on one side and "R" on the reverse side.
3CONTRAINDICATIONS
None.
4ADVERSE REACTIONS
The following clinically important adverse reactions, that can become serious are described elsewhere in the labeling:
- Hypertension [
- Hepatotoxicity [
- Diarrhea [
- Neutropenia [
4.1Clinical Trials Experience
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
TAVALISSE was studied in two randomized, double-blind, placebo-controlled trials that were identical in design. The data described below reflect exposure to TAVALISSE in 102 patients with chronic ITP who had received one or more prior ITP treatment(s). Groups were stratified with respect to splenectomy and severity of thrombocytopenia. Patients randomized to the TAVALISSE arm received 100 mg orally twice daily. Based upon platelet count and tolerability, if a patient's platelet count did not increase to at least 50 × 10
In the ITP double-blind studies, serious adverse drug reactions were febrile neutropenia, diarrhea, pneumonia, and hypertensive crisis, which each occurred in 1% of patients receiving TAVALISSE. In addition, severe adverse reactions observed in patients receiving TAVALISSE included dyspnea and hypertension (both 2%); and neutropenia, arthralgia, chest pain, diarrhea, dizziness, nephrolithiasis, pain in extremity, toothache, syncope and hypoxia (all 1%)
5OVERDOSAGE
There is no specific antidote for overdose with TAVALISSE, and the amount of R406 (the pharmacologically active metabolite of fostamatinib) cleared by dialysis is negligible. In the event of an overdose, monitor patient closely for signs and symptoms of adverse reactions, and treat the reactions with supportive care
6DESCRIPTION
Fostamatinib is a tyrosine kinase inhibitor. TAVALISSE is formulated with the disodium hexahydrate salt of fostamatinib, a phosphate prodrug that converts to its pharmacologically active metabolite, R406,
The chemical name for fostamatinib disodium hexahydrate is disodium (6-[[5-fluoro-2-(3,4,5-trimethoxyanilino) pyrimidin-4-yl]amino]-2,2-dimethyl-3-oxo-pyrido[3,2-b][1,4]oxazin-4-yl)methyl phosphate hexahydrate. The molecular formula is C
Fostamatinib disodium is a white to off-white powder that is practically insoluble in pH 1.2 aqueous buffer, slightly soluble in water, and soluble in methanol.
Each TAVALISSE oral tablet contains 100 mg or 150 mg fostamatinib, equivalent to 126.2 mg or 189.3 mg fostamatinib disodium hexahydrate, respectively.
The inactive ingredients in the tablet core are mannitol, sodium bicarbonate, sodium starch glycolate, povidone, and magnesium stearate. The inactive ingredients in the film coating are polyvinyl alcohol, titanium dioxide, polyethylene glycol 3350, talc, iron oxide yellow, and iron oxide red.
7CLINICAL STUDIES
TAVALISSE was studied in two placebo-controlled efficacy and safety studies (referred to as FIT-1 [NCT02076399] and FIT-2 [NCT02076412]), and in an open-label extension study referred to as FIT-3 (NCT 02077192).
8HOW SUPPLIED/STORAGE AND HANDLING
TAVALISSE 100 mg tablets are round, biconvex, orange, film-coated tablets debossed with "100" on one side and "R" on the reverse side.
TAVALISSE 150 mg tablets are oval, biconvex, orange, film-coated tablets debossed with "150" on one side and "R" on the reverse side.
9PATIENT COUNSELING INFORMATION
Advise the patient to read the FDA-approved patient labeling (Patient Information).
- Hypertension:
- Hepatotoxicity:
- Diarrhea:
- Neutropenia:
- Advise patients to inform their healthcare providers of all their medications, including prescription medicines, over-the-counter drugs, vitamins, and herbal products
- Embryo-Fetal Toxicity
- Lactation
- Inform patients that TAVALISSE may be taken with or without food. In the case of a missed dose of TAVALISSE, instruct patients to take their next dose at its regularly scheduled time.
10PRINCIPAL DISPLAY PANEL - 100 mg Tablet Bottle Label
NDC 71332-
Tavalisse®
(fostamatinib) tablets
(fostamatinib) tablets
100 mg
60 Tablets
11PRINCIPAL DISPLAY PANEL - 150 mg Tablet Bottle Label
NDC 71332-
Tavalisse®
(fostamatinib) tablets
(fostamatinib) tablets
150 mg
60 Tablets
