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Alpha-1 MP

Phase 3

Pulmonary Emphysema in Alpha-1 PI Deficiency | Monoclonal antibody | Respiratory |Grifols, S.A.|Last Updated: Mar 4, 2026

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-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment345
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01983241Efficacy and Safety of Alpha1-Proteinase Inhibitor (Human), Modified Process (Alpha-1 MP) in Subjects With Pulmonary Emphysema Due to Alpha1 Antitrypsin Deficiency (AATD)PHASE3 ACTIVE NOT_RECRUITING 345Nov 1, 2013Jan 1, 2027Mar 4, 202652 United States, Argentina +15
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Study Endpoints
Primary Endpoints
Change from Baseline in Whole lung PD15 (15th percentile point)
Week -3 (baseline measure), Week 52, Week 104, Week 130, Week 156

Whole lung PD15 measured by CT scan

Secondary Endpoints
Adverse Events (AEs)
Week -3 through Week 160
Serious Adverse Events (SAEs)
Week -3 through Week 160
Discontinuations from the study due to AEs
Week -3 through Week 160
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Study Design & Arms
AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Alpha-1 MP 60 mg/kgEXPERIMENTALAlpha-1 MP 60 mg/kg administered weekly by IV infusion for 156 weeks
Alpha-1 MP 120 mg/kgEXPERIMENTALAlpha-1 MP 120 mg/kg administered weekly by IV infusion for 156 weeks
PlaceboPLACEBO_COMPARATOR0.9% Sodium Chloride for Injection, USP, administered weekly by IV infusion for 156 weeks
Interventions
NameTypeDescription
Alpha-1 MPBIOLOGICAL -
0.9% Sodium Chloride for Injection, USPOTHER -
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Eligibility Criteria
Age Range18 Years — 70 Years
SexALL
Healthy VolunteersNo
Study Sites52

Inclusion Criteria: * Have a documented total alpha1-PI serum level \< 11 µM. * Have a diagnosis of congenital AATD with an allelic combination of ZZ, SZ, Z(null), (null)(null), S(null), or "at-risk" alleles. * At the Screening (Week -3) Visit, have a post-bronchodilator forced expiratory volume in...

Countries:United StatesArgentinaAustraliaBrazilCanadaDenmarkEstoniaFinlandFranceGermanyMoldovaNew ZealandPolandRomaniaRussiaSpainSweden
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT01983241primaryCompletionDate: changed
LOWMay 24, 2026NCT01983241studyFirstPostDate: changed