Nivolumab/Relatlimab-rmbw: A Novel Dual Combination Therapy to Treat Adult and Pediatric Patients With Unresectable or Metastatic Melanoma

Author:

Thomas Baily1,Burns Madison1,Pervanas Helen2,Ciurescu Daniel3,Dima Lorena4ORCID

Affiliation:

1. Sanofi Specialty Care, Cambridge, MA;

2. Massachusetts College of Pharmacy and Health Sciences University, Manchester, NH;

3. Faculty of Medicine, Department of Medical and Surgical Specialties, Transilvania University of Brasov, Romania; and

4. Faculty of Medicine, Department of Fundamental Disciplines and Clinical Prevention, Transilvania University of Brasov, Brasov, Romania.

Abstract

Background: Immune checkpoint inhibitors control effector mechanisms and work to restore downregulated T-cells in patients with melanoma. Examples of such include programmed death-1 inhibitors and lymphocyte-activating gene 3 inhibitors. The combination of nivolumab, a programmed death-1 inhibitor, and relatlimab-rmbw, a lymphocyte-activating gene 3 inhibitor, has shown antitumor activity and improved progression-free survival in patients with unresectable or metastatic melanoma. Mechanism of Action & Pharmacokinetics/Pharmacodynamics: The fixed-dose combination of nivolumab and relatlimab immunotherapy is approved for adults and pediatrics 12 years of age or older with metastatic or unresectable melanoma. Volume of distribution is 6.6 L for relatlimab and nivolumab, and half-life is 27 and 26 days, respectively. Clearance at steady state is 7.6 mL/h for nivolumab and 5.5 mL/h for relatlimab. Sex, age, race, and mild hepatic/renal impairment had no clinical effect on clearance. The exposure–response relationship and pharmacodynamic response for the safety and effectiveness of nivolumab/relatlimab-rmbw have not been fully characterized. Safety concerns include severe and fatal immune-mediated adverse reactions, infusion-related reactions, and complications of allogeneic hematopoietic stem cell transplantation, and fetal toxicity. Dosing is determined by patient's age and weight. Solution is infused over a 30-minute timeframe. Clinical Trials: In the RELATIVITY-047 trial, patients received nivolumab or nivolumab/relatlimab-rmbw. Results showed superiority of dual therapy over monotherapy with a progression-free survival of 10.1 months (95% CI, 6.4–15.7) compared with 4.6 months (95% CI, 3.4–5.6) and hazard ratio of 0.75 (95% CI, 0.62–0.92); P = 0.006, respectively. No safety concerns were observed compared with monotherapy with treatment-related adverse events occurring in 18.9% of patients on combination therapy compared with 9.7% on nivolumab alone. Therapeutic Advance: The novel mechanism and improvement in progression-free survival compared with standard of care highlight the therapeutic advancement of nivolumab/relatlimab-rmbw in the treatment of unresectable and metastatic melanoma.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Pharmacology (medical),Pharmacology,General Medicine

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