Effective Date:
a) This policy will apply to all services performed on or after the above revision date which will become the new effective date.
b) For all services referred to in this policy that were performed before the revision date, contact customer service for the rules that would apply.
1) Gamifant (emapalumab) requires prior authorization.
2) Gamifant is used to treat primary hemophagocytic lymphohistiocytosis (HLH) in adult and pediatric patients with refractory, recurrent, or progressive disease or intolerance with conventional HLH therapy.
3) Gamifant is an injectable medication covered under the medical benefit as a specialty drug.
Gamifant (emapalumab) is considered medically necessary for members meeting the following conditions:
1) Diagnosis of primary HLH (i.e. familial (inherited) hemophagocytic lymphohistiocytosis (HLH)) AND
2) Prescribed by or in consultation with a hematologist AND
3) Failure of conventional HLH therapy that includes an etoposide- and dexamethasone-based regimen, unless contraindicated or clinically significant adverse effects are experienced AND
4) Documentation of a scheduled bone marrow or hematopoietic stem cell transplantation (HSCT) or identification of a transplant donor is in process AND
5) Dose does not exceed 10mg/kg per dose, two doses per week.
Initial Approval Duration is 2 months.
Reauthorization Criteria (for 6 months if approved)
Member is responding positively to therapy – including but not limited to improvement in ANY of the following parameters:1) Fever reduction
1) Splenomegaly
2) Central nervous system symptoms
3) Complete blood count
4) Fibrinogen and/or D-dimer
5) Ferritin
6) Soluble CD25 (also referred to as soluble interleukin-2 receptor) levels
Codes Used In This BI:
1) J9210 – Injection, emapalumab-lzsg, 1mg
1) Gamifant Prescribing Information. Geneva, Switzerland: Novimmune; November 2019.
2) Henter JI, Samuelsson-Horne AC, Arico M, et al. Treatment of hemophagocytic lymphohistiocytosis with HLH-94 immunochemotherapy and bone marrow transplantation. Blood 2002; 100 (7): 2367-72.
3) Chesshyre E, Ramanan AV, Roderick MR. Hemophagocytic Lymphohistiocytosis and Infections: An update. The Pediatric Infectious Disease Journal March 2019; 38(3): e54-e56.
4) Bergsten E, Horne AC, Arico M, et al. Confirmed efficacy of etoposide and dexamethasone in HLH treatment: long-term results of the cooperative HLH-2004 study. Blood 2017; 130 (25): 2728-38.