Isatuximab

Specification

• Cat#: THA-0116
• Product Name: Isatuximab
• Description: Isatuximab is a chimeric monoclonal antibody targeted against surface CD38 glycoproteins for the treatment of multiple myeloma in patients who have failed previous therapies.
• Sequences: Not Available
• Molecular Weight: 148000.0 Da
• Introduction: Isatuximab (formerly SAR650984) is a humanized, IgG1-derived monoclonal antibody (mAb) produced from a Chinese hamster ovary (CHO) cell line. Structurally, isatuximab is comprised of two identical immunoglobulin kappa light chains and two identical immunoglobulin gamma heavy chains. It is a cytolytic antibody targeted against CD38, a glycoprotein found on the surface of some immune cells that is highly expressed by malignant plasma cells in multiple myeloma. Along with daratumumab, another anti-CD38 mAb, isatuximab constitutes a novel treatment modality for patients with difficult-to-treat multiple myeloma. Following three consecutive years on the yearly "Antibodies to watch" list published in "mAb", a peer-reviewed scientific journal dedicated to antibody research, isatuximab was granted Orphan Drug designation and approved on March 2nd, 2020, for the treatment of multiple myeloma. It is manufactured by Sanofi-Aventis U.S. under the brand name Sarclisa.
• Purity: >99% by SDS-Page and HPLC analysis
• Formula: Not Available
• Appearance: Solid

Pharmaceutical Information

• Pharmacodynamics: Isatuximab results in the apoptosis of malignant plasma cells via inhibition of a surface protein key to their survival and proliferation. It has a relatively long residence time in the body, taking approximately 2 months to clear following the final dose, and may therefore be infused on a weekly or bimonthly schedule. Isatuximab is given in combination with pomalidomide due to a synergy that exists between the two-isatuximab can induce a depletion in host NK lymphocytes, yet the ADCC effect of anti-CD38 mAbs has been shown to be superior in patient samples with a high ratio of NK to myleoma cells. Pomalidomide, another antineoplastic agent, has the ability to induce and enhance NK lymphocyte activity and thus works synergistically to enhance isatuximab-mediated killing of myeloma cells. Isatuximab is formulated as an intravenous infusion and its administration may result in infusion-related reactions characterized most commonly by dyspnea, cough, chills, and nausea. All noted reactions started during the first infusion and 98% resolved on the same day. Reactions may be mitigated by pre-medication with acetaminophen, H2 antagonists, diphenyhdramine, and/or dexamethasone. Patients with grade 1 or 2 reactions may restart the infusion at a slower rate following resolution of symptoms, but patients experiencing a grade 3 or higher reaction (e.g. hypertension, bronchospasm) should discontinue therapy indefinitely. Isatuximab can generate false positive results for indirect antglobulin tests (indirect Coombs tests), immunofixation tests, and serum protein electrophoresis.
• Targets: ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase 1