Last update 16 Jun 2025

Fostamatinib Disodium

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
FosD, fostamatinib, Fostamatinib disodium (USAN)
+ [26]
Target
Action
inhibitors
Mechanism
Syk inhibitors(Spleen tyrosine kinase inhibitors)
Originator Organization
Inactive Organization
Drug Highest PhaseApproved
First Approval Date
RegulationOrphan Drug (United States), Orphan Drug (South Korea)
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Structure/Sequence

Molecular FormulaC23H38FN6Na2O15P
InChIKeyNDEMBSYOASYZJZ-UHFFFAOYSA-N
CAS Registry914295-16-2

External Link

R&D Status

Approved
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IndicationCountry/LocationOrganizationDate
Purpura, Thrombocytopenic, Idiopathic
United States
17 Apr 2018
Thrombocytopenia
United States
17 Apr 2018
Developing
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IndicationHighest PhaseCountry/LocationOrganizationDate
Chronic idiopathic thrombocytopenic purpuraNDA/BLA
South Korea
-
COVID-19Phase 3
United States
25 Mar 2021
COVID-19Phase 3
Argentina
25 Mar 2021
COVID-19Phase 3
Brazil
25 Mar 2021
COVID-19Phase 3
Mexico
25 Mar 2021
Severe Acute Respiratory SyndromePhase 3
United States
25 Mar 2021
Severe Acute Respiratory SyndromePhase 3
Argentina
25 Mar 2021
Severe Acute Respiratory SyndromePhase 3
Brazil
25 Mar 2021
Severe Acute Respiratory SyndromePhase 3
Mexico
25 Mar 2021
Autoimmune Haemolytic AnaemiasPhase 3
United States
24 Apr 2019
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 2/3
1,060
(TXA127 (4/20/2022 Arm Closed to Accrual))
eefaguwxuj(drdpdkmrlb) = wzhplwdzgu ogorjugewd (yjmmdemdzy, 10.9)
-
22 Jan 2025
(TRV027 (4/20/2022 Arm Closed to Accrual))
eefaguwxuj(drdpdkmrlb) = zucxudlxum ogorjugewd (yjmmdemdzy, 10.8)
ASH2024
ManualManual
Not Applicable
113
Fostamatinib + TPO-RA
lrrrezqlzs(esreolbywv) = isednvmyar ryemqarhvn (wfswuynzgd )
Positive
09 Dec 2024
Not Applicable
157
hnjqphqzvj(wwgmtaqbly) = xkzidjztlv qhsrusoxfv (vqflbypkgg )
Positive
08 Dec 2024
Phase 3
Thrombosis | COVID-19 | Thrombophilia
SARS-CoV-2 infection
400
Fostamatinib 150 mg
hvneffwkqo(hnajpmrkrr) = gxhwwaqinu ejgondeylu (ndbkwxtxhf, 12.4)
Negative
03 Dec 2024
Placebo
hvneffwkqo(hnajpmrkrr) = ljqrpluwir ejgondeylu (ndbkwxtxhf, 12.1)
Phase 2/3
28
(Fostamatinib)
blxvsfzpwz(shkfebqfwm) = yisvzezswo uwqzyhtjdc (raubkgcjiz, 12.4)
-
05 Nov 2024
Placebo
(Placebo)
blxvsfzpwz(shkfebqfwm) = erwqgiccyu uwqzyhtjdc (raubkgcjiz, 12.1)
Phase 1
35
(Fostamatinib 100 mg Bid and Paclitaxel)
nseedvqmcc = pvsbulwvqq yobjlipxhx (lwulpqfeug, tcxqimvews - evtbelbbmy)
-
19 Sep 2024
(Fostamatinib 150 mg Bid and Paclitaxel)
nseedvqmcc = qiaytfbdpm yobjlipxhx (lwulpqfeug, awhtihbvuo - uhzlvcglfq)
Not Applicable
72
bkkvgrycff(aqsewmwwbz) = diarrhea (n=9), hypertension (n=8), transaminitis (n=7), venous thrombotic event, COVID-19 infection, neutropenia agaarbvpgm (bwmqjzpxfi )
Positive
14 May 2024
Not Applicable
-
-
qoxkgmknbr(lvjsjtbyza) = mfjjsioxci ctgtjldokw (awyhiypipl )
-
14 May 2024
Not Applicable
138
Fostamatinib (Tavlesse®)
lipacwfpfe(vaetpxdemc) = apcrfrjsfh aaijrjqhqy (pavsajdobw )
Positive
14 May 2024
Phase 2
3
(Part A: Fostamatinib)
hefswvguwg = iaikruqbso nvlpqmbxjr (didijvxizc, ahnidkzkgf - shlhbsbwep)
-
15 Dec 2023
(Part B: Fostamatinib + Ruxolitinib)
rswqgcecry(qvbqzsiveu) = qlcvghdddf osyjxeckao (lgnhtrhrdu, lwihrmgqkr - ppgonfwkuo)
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Regulation

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