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rabbit antithymocyte globulin

Phase 2

Aplastic Anemia | Small molecule | Hematology |Sanofi|Last Updated: May 12, 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
UNCONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment35
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00471848Rabbit Antithymocyte Globulin (Thymoglobuline) With Ciclosporin for Patients With Acquired Aplastic AnaemiaPHASE2 COMPLETED 35Aug 1, 2008Feb 1, 2013May 12, 202614 France, Germany +4
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Study Endpoints
Primary Endpoints
Number of Participants With Response to Rabbit Antithymocyte Globulin (Thymoglobuline)
at 6months

Complete Response (CR) defined as: Haemoglobin normal for age and gender, neutrophils \> 1.5 x 10E9/l, platelets \> 150 x 10E9/l. Partial Response (PR) defined as: * transfusion independence (if previously dependent) or * doubling or normalisation of at least one cell line or * increase of baseline haemoglobin of \> 3 g/dl (if initially \<6) + neutrophils of \> 0.5 x 10E9/l + platelets of \> 20 x 10E9/l (if initially \< 20) No Response (MR) is defined as: worse or not meeting criteria above

Secondary Endpoints
Failure Free and Overall Survival of Participants to Rabbit Antithymocyte Globulin (Thymoglobuline)
at 2 years
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Treatment ArmEXPERIMENTALAntithymocyte globulin with cyclosporin in first line treatment of patients with acquired severe aplastic anaemia and patients with non-severe aplastic anaemia who are transfusion dependent
Interventions
NameTypeDescription
rabbit antithymocyte globulinDRUG1.5 vials/10kg daily for 5 days
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Eligibility Criteria
Age Range16 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites14

Inclusion Criteria: 1. Must fulfil definition of aplastic anaemia: There must be at least two of the following: * haemoglobin \< 10g/dl * platelet count \< 50 x 109/l * neutrophil count \< 1.5 x 109/l, and a hypocellular bone marrow on bone marrow biopsy SAA as defined by a hypocel...

Countries:FranceGermanyItalySaudi ArabiaSwitzerlandUnited Kingdom
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Competitive Landscape -Aplastic Anemia 4 trials
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Recent Changes (Last 90 Days)
LOWMay 24, 2026NCT00471848studyFirstPostDate: changed