Condition:  Mast Cell Activation Syndrome
Interventions:  Drug: Masitinib 4.5 mg/kg/day;  Drug: Placebo;  Other: Best supportive care;  Drug: Masitinib 6.0 mg/kg/day
Sponsor: Â ABÂ Science
**RECRUITING NOW**
Interventions:  Drug: Masitinib 4.5 mg/kg/day;  Drug: Placebo;  Other: Best supportive care;  Drug: Masitinib 6.0 mg/kg/day
Sponsor: Â ABÂ Science
**RECRUITING NOW**
Source: View full study details on ClinicalTrials.gov
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