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Indication
Gamifant® (emapalumab-lzsg) is an interferon gamma (IFNγ)–blocking antibody indicated for the treatment of adult and pediatric (newborn and older) patients with primary... hemophagocytic lymphohistiocytosis (HLH) with refractory, recurrent, or progressive disease or intolerance with conventional HLH therapy.
Important Safety Information
Infections
Before initiating Gamifant, patients should be evaluated for infection, including latent tuberculosis (TB)... Prophylaxis for TB should be administered to patients who are at risk for TB or known to have a positive purified protein derivative (PPD) test result or positive IFNγ release assay.
Indication
Gamifant® (emapalumab-lzsg) is an interferon gamma (IFNγ)–blocking antibody indicated for the treatment of adult and pediatric (newborn and older) patients with primary hemophagocytic lymphohistiocytosis (HLH) with refractory, recurrent, or progressive disease or intolerance with conventional HLH therapy.
Important Safety Information
Infections
Before initiating Gamifant, patients should be evaluated for infection, including latent tuberculosis (TB). Prophylaxis for TB should be administered to patients who are at risk for TB or known to have a positive purified protein derivative (PPD) test result or positive IFNγ release assay.
During Gamifant treatment, patients should be monitored for TB, adenovirus, Epstein-Barr virus (EBV), and cytomegalovirus (CMV) every 2 weeks and as clinically indicated.
Patients should be administered prophylaxis for herpes zoster, Pneumocystis jirovecii, and fungal infections prior to Gamifant administration.
Increased Risk of Infection With Use of Live Vaccines
Do not administer live or live attenuated vaccines to patients receiving Gamifant and for at least 4 weeks after the last dose of Gamifant. The safety of immunization with live vaccines during or following Gamifant therapy has not been studied.
Infusion-Related Reactions
Infusion-related reactions, including drug eruption, pyrexia, rash, erythema, and hyperhidrosis, were reported with Gamifant treatment in 27% of patients. In one-third of these patients, the infusion-related reaction occurred during the first infusion.
Adverse Reactions
In the pivotal trial, the most commonly reported adverse reactions (≥10%) for Gamifant included infection (56%), hypertension (41%), infusion-related reactions (27%), pyrexia (24%), hypokalemia (15%), constipation (15%), rash (12%), abdominal pain (12%), CMV infection (12%), diarrhea (12%), lymphocytosis (12%), cough (12%), irritability (12%), tachycardia (12%), and tachypnea (12%).
Additional selected adverse reactions (all grades) that were reported in less than 10% of patients treated with Gamifant included vomiting, acute kidney injury, asthenia, bradycardia, dyspnea, gastrointestinal hemorrhage, epistaxis, and peripheral edema.
Click here for full Prescribing Information for Gamifant.
You may also contact Sobi at medinfo.us@sobi.com or 866-773-5274.
References
- Jordan MB, Allen CE, Weitzman S, Filipovich AH, McClain KL. How I treat hemophagocytic lymphohistiocytosis. Blood. 2011;118(15):4041-4052. doi:10.1182/blood-2011-03-278127
- Sepulveda FE, de Saint Basile G. Hemophagocytic syndrome: primary forms and predisposing conditions. Curr Opin Immunol. 2017;49:20-26. doi:10.1016/j.coi.2017.08.004
- Gamifant (emapalumab-lszg) prescribing information. Stockholm, Sweden: Sobi, Inc. 2022.
Resources for You and Your Patients
Help guide your patients and their caregivers along the treatment journey with these tools and resources.
LISTEN NOW
Learn more about Gamifant and primary HLH with the Investigating HLH: Gamifant pivotal trial podcast
Adam Narloch speaks with Dr Michael B. Jordan to talk about his hemophagocytic lymphohistiocytosis (HLH) research and Gamifant. Dr Jordan is a pediatric hematologist-oncologist at Cincinnati Children's Hospital, and a professor in the Department of Pediatrics at the University of Cincinnati. Hear from Dr Jordan about his work exploring the pathology of HLH using mouse models and a walkthrough of the background, methods, and results from the Gamifant pivotal trial.
On your phone, open your podcast app and search "Investigating HLH."
Also available on:
PRIMARY HEMOPHAGOCYTIC LYMPHOHISTIOCYTOSIS (HLH)
CXCL9 testing brochure
Information about the relationship between IFNγ and CXCL9 and the value of CXCL9 testing
DOWNLOADGAMIFANT® (emapalumab-lzsg)
Gamifant Full Prescribing Information
DOWNLOADDosing and Administration Guide
Information about dose titration, preparation, and administration of Gamifant
DOWNLOADGamifant Brochure
A brief overview of primary HLH, Gamifant pivotal trial data, and information for getting started
DOWNLOADACCESS GAMIFANT
Product Information
DOWNLOADGamifant Start Form
DOWNLOADSummary of Relevant Codes
DOWNLOADGuide to Requesting Medical Exception
DOWNLOADLetter of Medical Necessity
DOWNLOADMedical vs Pharmacy Benefits Brochure
DOWNLOADTips for Completing a Benefits Investigation
DOWNLOADGuide to Prior Authorization Submission
DOWNLOADAdvocacy Groups
The mission of The Matthew and Andrew Akin Foundation is to inform, inspire, and invest in families affected by hemophagocytic lymphohistiocytosis.
matthewandandrew.org
Founded by the mother of an HLH survivor, the goal of this program is to support and connect others struggling with the disease. In addition to hosting an active Facebook support group, HLH Support holds events like the Marsh Family Annual Toy Drive to raise money for HLH.
Hannah, the HLH survivor who inspired the program, also sells handmade blue Swarovski crystal bracelets to spread awareness and fund HLH research.
hlhsupport.org
Histiocytosis Association provides educational materials, peer/physician networking opportunities, and a physician directory for treatment/second opinions. The organization also offers staff to assist families with awareness, advocacy, and programs to raise funds for research.
histio.org
Liam’s Lighthouse Foundation (LLF) is a nonprofit, tax exempt organization established to increase awareness of HLH and other histiocytic disorders. The organization focuses on bringing the families affected together, offering support through a variety of programs, and raising much-needed funds for continued research and education at leading medical institutions.
liamslighthousefoundation.org
Founded in 1980, the Immune Deficiency Foundation (IDF) is a national nonprofit patient organization dedicated to improving the diagnosis, treatment, and quality of life of persons with primary immunodeficiency (PI) diseases through advocacy, education, and research. IDF provides accurate and timely information and valuable resources for patients and families living with PI, including HLH.
primaryimmune.orgTransplant Resources
BMT InfoNet is an organization for bone marrow, stem cell, and cord blood transplant patients. It empowers patients and caregivers with knowledge through its website, video learning library, patient books, and symposiums. BMT InfoNet also provides personal guidance and a one-on-one peer support program.
bmtinfonet.org
Over the past 30 years, Be The Match®, operated by the National Marrow Donor Program® (NMDP), has managed the largest and most diverse marrow registry in the world. Their team works every day to save lives through transplant.
bethematch.org
A rare dedication
At Sobi, we focus on ultra-rare diseases, which can affect just hundreds or even dozens of patients. These patients have many critical unmet needs, yet are frequently overlooked by the healthcare industry.
We are dedicated to providing access to innovative treatments that make a significant difference in the lives of individuals with ultra-rare diseases.
We work closely with patients, caregivers, and advocacy organizations to understand and address the challenges they face throughout their journey, from infancy to adulthood. And we keep innovating to meet their evolving needs, serving as a trusted partner for life.