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fostamatinib

Phase 3

Rheumatoid Arthritis | Small molecule | Immunology |AstraZeneca PLC|Last Updated: May 8, 2014

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindCONTROLLEDDMCBiomarker
Total Trials9
Total Enrollment2,536
FDA Designations
No designations recorded
Clinical Trials (9)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01197521Evaluation of Effectiveness of Two Dosing Regimens of Fostamatinib Compared to Placebo in Patients With Rheumatoid Arthritis (RA) Who Are Taking Methotrexate But Not Responding.PHASE3 COMPLETED 923Sep 1, 2010Nov 1, 2012Apr 7, 2014127 United States, Argentina +15
NCT01197534Evaluation of Effectiveness of Two Dosing Regimens of Fostamatinib Compared to Placebo in Patients With Rheumatoid Arthritis (RA) Who Are Taking Disease Modifying Anti-rheumatic Drug (DMARD) But Not Responding.PHASE3 COMPLETED 913Sep 1, 2010Mar 1, 2013Apr 17, 2014149 United States, Canada +14
NCT01197755Evaluation of Effectiveness of Two Dosing Regimens of Fostamatinib Compared to Placebo in Patients With Rheumatoid Arthritis (RA) Who Are Taking Methotrexate and Have Had Inadequate Response to Single TNF-alpha AntagonistPHASE3 COMPLETED 323Sep 1, 2010Feb 1, 2013Apr 7, 2014135 United States, Argentina +14
NCT01563978Study of the Effect of Fostamatinib Twice Daily on Blood Pressure in Patients With Rheumatoid ArthritisPHASE2 COMPLETED 266Apr 1, 2012Jan 1, 2013May 8, 201456 United States, Bulgaria +5
NCT01725230Assess the Pharmacokinetics of Rosuvastatin and Simvastatin When Administered Alone or in Combination With FostamatinibPHASE1 COMPLETED 42Nov 1, 2012Jan 1, 2013Feb 4, 20131 United States
NCT01336218Effects of Administration of Fostamatinib on Blood Concentrations of Rifampicin in Healthy Subjects.PHASE1 COMPLETED 15Apr 1, 2011Jul 1, 2011Jul 22, 20111 United States
NCT01309854Effects of Administration of Fostamatinib on Blood Concentrations of Pioglitazone in Healthy SubjectsPHASE1 COMPLETED 15Mar 1, 2011May 1, 2011Jul 7, 20111 United States
NCT01311622Effects of Administration of Fostamatinib on Blood Concentrations of Warfarin in Healthy SubjectsPHASE1 COMPLETED 15Mar 1, 2011May 1, 2011Jan 31, 20131 United Kingdom
NCT01245790A Study of Fostamatinib in Subjects With Impaired Kidney FunctionPHASE1 COMPLETED 24Nov 1, 2010Jun 1, 2011Jun 16, 20111 United States
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Study Endpoints
Primary Endpoints
Proportion of Patients With ACR20 at Week 24, Comparison Between Fostamatinib and Placebo.
24 weeks

ACR20: American College of Rheumatology 20% response criteria, based on count of swollen and tender joints (out of 28 joints), blood test measures of inflammation (such as CRP) and the physician and patient's own assessments of disease activity, pain and physical function. Non-responder imputation has been applied by carrying the baseline observation forward. BID=twice daily, CRP=C-reactive protein, DMARD=disease-modifying anti-rheumatic drug, PO=orally, QD=once a day.

Change From Baseline to Week 24 in mTSS, Comparison Between Fostamatinib and Placebo.
Baseline and 24 weeks

mTSS: modified total Sharp score, a measure of structural progression based upon X-rays. Hand and foot joints are scored for erosions and joint space narrowing and the results summed to give a value between 0 and 448. A higher value represents more serious progression of the disease. After disregarding ineligible records, patients with 2 or more non-missing values have had missing data imputed via linear extrapolation/interpolation methods. Patients with only 1 result have been excluded from the analysis. ANCOVA=analysis of covariance, BID=twice daily, DMARD=disease-modifying anti-rheumatic drug, IP=investigational product, PO=orally, QD=once a day.

Proportion of Patients With ACR20 at Week 24, Comparison Between Fostamatinib and Placebo
24 weeks

ACR20: American College of Rheumatology 20% response criteria, based on count of swollen and tender joints (out of 28 joints), blood test measures of inflammation (such as CRP) and the physician and patient's own assessments of disease activity, pain and physical function. BID = twice daily, CRP = C-reactive protein, DMARD = disease-modifying anti-rheumatic drug, PO = orally, QD = once a day.

Proportion of Patients Achieving ACR20 at Week 24, Comparison Between Fostamatinib and Placebo
24 weeks

ACR20: American College of Rheumatology 20% response criteria, based on count of swollen and tender joints (out of 28 joints), blood test measures of inflammation (such as C-Reactive Protein) and the physician and patient's own assessments of disease activity, pain and physical function. BID = twice daily, DMARD = disease-modifying anti-rheumatic drug, PO = orally, QD = once daily.

Change From Baseline in 24-hour Mean Ambulatory SBP
4 weeks

ANCOVA=analysis of covariance, BID=twice daily, FAS=full analysis set, IP=investigational product, SBP=systolic blood pressure.

Pharmacokinetics of Rosuvastatin measured by AUC and Cmax.
Day 1 and Day 6 at predose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 12, 24, 36 and 48 hours postdose.
Pharmacokinetics of Simvastatin measured by AUC and Cmax
Day 1 and Day 6 at predose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, 12, 24, 36 and 48 hours postdose.
To assess the pharmacokinetics of R406 in healthy subjects when a single dose of fostamatinib is administered alone and in combination with rifampicin. AUC and Cmax will be measured
Period 1: Day 1 to 96 hours post-dose Period 2: Day 6 to 96 hours post-dose
To assess pharmacokinetics (PK) of pioglitazone including but not limited to AUC and Cmax
Period 1: Pre-dose to 48h post dose
To determine PK parameters of R- and S-warfarin including but not limited to AUC and Cmax
From pre-dose to 168 h post dose relative to each single warfarin dose

* Pharmacokinetics of warfarin measured by AUC * Pharmacokinetics of warfarin measured Cmax

Plasma pharmacokinetic (PK) parameters

Parameters include: AUC, Cmax

Secondary Endpoints
ACR20 - Proportion of Patients Achieving ACR20, Comparison Between Fostamatinib and Placebo at Week 1
1 week
Proportion of Patients Achieving ACR50 up to Week 24
24 weeks
Proportion of Patients Achieving ACR70 up to Week 24
24 weeks
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Dosing Regimen AEXPERIMENTALOral Treatment
Dosing Regimen BEXPERIMENTALOral Treatment
Dosing Regimen CPLACEBO_COMPARATOROral Treatment
RosuvastatinEXPERIMENTALSingle, oral dose of rosuvastatin 20mg in first period and in second period (after wash out) fostamatinib 100 mg twice daily, then single oral dose of rosuvastatin 20 mg plus continued oral dosing of fostamatinib 100 mg twice daily, then continue fostamatinib 100 mg twice daily
SimvastatinEXPERIMENTALSingle, oral dose of simvastatin 40 mg in first period and in second period (after wash out) fostamatinib 100 mg twice daily, then single oral dose of simvastatin 40 mg plus continued oral dosing of fostamatinib 100 mg twice daily, then continue fostamatinib 100 mg twice daily
1EXPERIMENTALFostamatinib
2EXPERIMENTALRifampicin
pioglitazoneEXPERIMENTAL -
pioglitazone and fostamatinibEXPERIMENTAL -
warfarinEXPERIMENTAL -
warfarin and fostamatinibEXPERIMENTAL -
3EXPERIMENTALModerate renal impairment (Stage 2)
4EXPERIMENTALSevere renal impairment (Stage 2)
5EXPERIMENTALEnd stage renal disease (Stage 1)
Interventions
NameTypeDescription
fostamatinibDRUGfostamatinib 100 mg twice daily
placebo, fostamatinibDRUGPlacebo for 24 weeks followed by fostamatinib 100 mg twice daily
placeboDRUGPlacebo twice daily
RosuvastatinDRUG20-mg tablet
SimvastatinDRUG40-mg tablet
rifampicinDRUGoral tablets, 600mg (2 X 300mg) 8 doses over 8 days
pioglitazoneDRUGoral tablets, 30mg single dose per period
warfarinDRUG2 single 25 mg doses of Warfarin (5 x 5 mg tablets) administered 14 days apart
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites127

Inclusion Criteria: * Active rheumatoid arthritis (RA) diagnosed after the age of 16 * Currently taking methotrexate * 6 or more swollen joints and 6 or more tender/painful joints (from 28 joint count) and either Erythrocyte Sedimentation Rate (ESR) blood result of 28mm/h or more, or C-Reactive Pro...

Countries:United StatesArgentinaAustraliaBelgiumBrazilBulgariaChileEstoniaFranceHungaryIndiaMexicoPeruPolandSlovakiaUkraineUnited KingdomCanadaCzechiaGermanyIsraelItalyLatviaLithuaniaPortugalRomaniaSerbiaSouth AfricaSpain
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