Sirolimus for the Treatment of Hyperinsulinism
Hyperinsulinism

About this trial
This is an interventional treatment trial for Hyperinsulinism
Eligibility Criteria
Inclusion Criteria:
- Males or females age ≥14 days to 12 months.
- Confirmed diagnosis of hyperinsulinism.
- Mutation analysis results demonstrating bi-allelic mutations in either ABCC8 or KCNJ11.
- Failure to respond to maximal dose of diazoxide (15 mg/kg/day), if diazoxide is indicated. - Unable to wean intravenous dextrose after at least 3 days of diazoxide therapy and/or
- Persistent hypoglycemia after at least 3 days of diazoxide therapy
 
- High glucose infusion rate requirement (greater or equal to 10 mg/kg/min).
- Parental/guardian permission (informed consent).
Exclusion Criteria:
- Infants with suspected or confirmed focal hyperinsulinism who are candidates for surgical resection
- Current therapy with diazoxide. Subjects may be eligible for participation 48 hrs after discontinuation of diazoxide.
- Laboratory abnormalities that indicate clinically significant hematologic, hepatobiliary, or renal disease: - AST/SGOT > 2.5 times the upper limit of normal
- ALT/SGPT > 2.5 times the upper limit of normal
- Total bilirubin > 2.5 times the upper limit of normal
- Hemoglobin < 9 gm/dL
- White blood cell count < 3,000/ mm3
- Platelet count < 100,000/mm3
- Creatinine > 2.5 times the upper limit of normal
 
- Evidence of active infection.
- Evidence of cardiac or respiratory failure.
- Known immune deficiency.
- Preterm (< 37 week gestation at birth).
- Treatment with immunosuppressants.
- Treatment with any drug known to interact significantly with sirolimus (strong inducers and strong inhibitors of CYP3A4 and P-gp with risk category D and X) including: - Cyclosporine, clozapine, conivaptan, crizotinib, dabrafenib, dipyrone, boceprevir, echinacea, efavirenz, enzalutamide, fluconazole, fosphenytoin, fusidic acid, idelalisib, leflunomide, lomitapide, mifepristone, mitotane, natalizumab, nelfinavir, phenytoin, pimecrolimus, pimozide, posaconazole, roflumilast, St Johns Wort, stiripentol, tacrolimus, telaprevir, tofacitinib, rifampin, rifabutin, ketoconazole, voriconazole, itraconazole, erythromycin, telithromycin, clarithromycin 
- Any investigational drug use within 5 half-lives of the drug prior to initiation of therapy. - Subjects who had participated in other investigational drug studies will be eligible to participate after 5 half-lives from the last dose of the investigational agent and have recovered from acute investigational agent associated toxicity 
- History of surgical procedure within 8 weeks of enrollment.
- Parents/guardians or subjects who, in the opinion of the Investigator, may be non-compliant with study schedules or procedures.
Sites / Locations
- The Children's Hospital of Philadelphia
Arms of the Study
Arm 1
Experimental
Sirolimus
All enrolled subjects will receive Sirolimus 1 mg/m2/day twice a day for 6 weeks.