Prochymal Expanded Access Treatment for Pediatric Patients Who Have Failed Steroids for Acute GVHD

Study Overview
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Brief Summary
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This protocol allows for the treatment of pediatric patients, male and female, between the ages of 2 months and 17 years. Patients must have failed steroid treatment for Grade B-D acute GVHD.

Detailed Description
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For the treatment of pediatric patients who have failed to respond to steroid treatment for acute graft-versus-host disease (GVHD). Failing steroid treatment for acute GVHD is defined as any Grade B-D (IBMTR grading) of acute GVHD that is not improving after at least 3 days of methylprednisolone (≥ 1 mg/kg/day) or equivalent. Patients will be treated with Prochymal twice per week at a dose of 2 x 10^6 hematopoietic stem cells (hMSC)/kg (actual body weight) for each of 4 consecutive weeks. Infusions will be administered at least 3 days apart.

Official Title
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Expanded Access of Prochymal (Ex-vivo Cultured Adult Human Mesenchymal Stem Cells) Infusion for the Treatment of Pediatric Patients Who Have Failed to Respond to Steroid Treatment for Acute GVHD

Conditions
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Graft vs Host Disease, Graft-Versus-Host Disease

Intervention / Treatment
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* Biological: remestemcel-L


Participation Criteria
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Eligibility Criteria
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Inclusion criteria: Patients must sign an informed consent form (ICF) before any protocol-related procedures, including any pre-treatment procedures, are performed. Since patients being treated with Prochymal® under this protocol are under 18, a parental signature of informed consent will be required. Patients must be 2 months to 17 years of age, inclusive. Patients must have failed to respond to steroid treatment for Grades B-D acute GVHD • Failure to respond to steroid treatment for acute GVHD is defined as any Grade B-D acute GVHD that is not improving after at least 3 days of methylprednisolone (≥1 milligram per kilogram per day [mg/kg/day]) or equivalent. Exclusion criteria: Patient must not have a known allergy to bovine or porcine products. Patient must not have received a transplant for a solid tumor disease. Patients must not have evidence of a pulmonary infiltrate or diffuse alveolar hemorrhage and must be unlikely to require more than 2 liters (L) of oxygen via face mask or an estimated fraction of inspired oxygen (FiO2) of 28% via other delivery methods in order to sustain an O2 saturation of 92% during the next 3 days.

Ages Eligible for Study
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Minimum Age: 2 Months
Maximum Age: 17 Years

Sexes Eligible for Study
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All

Study Plan
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How is the study designed?
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Arms and Interventions

| Intervention/Treatment |
| --- |
|Biological: remestemcel-L|Patients will be treated with Prochymal® twice per week at a dose of 2 x 10^6 hMSC/kg (actual body weight) for each of 4 consecutive weeks. Infusions will be administered at least 3 days apart.|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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GVHD, Prochymal, Graft vs Host Disease