Zynlonta (loncastuximab tesirine-lpyl) vs Ezharmia (valemetostat tosilate)

Zynlonta (loncastuximab tesirine-lpyl) vs Ezharmia (valemetostat tosilate)

Zynlonta (loncastuximab tesirine-lpyl) is an antibody-drug conjugate specifically approved for the treatment of relapsed or refractory diffuse large B-cell lymphoma (DLBCL) after two or more lines of systemic therapy. Ezharmia (valemetostat tosilate), on the other hand, is an investigational, orally bioavailable, dual inhibitor of EZH1 and EZH2, which are enzymes involved in histone methylation, and it is being studied for the treatment of various hematological malignancies and solid tumors. When deciding between the two, it is important to consider the specific type and stage of cancer being treated, the drug's approval status, and the patient's previous treatments, as Zynlonta is approved for a specific indication while Ezharmia is still under investigation and not yet approved for use.

Difference between Zynlonta and Ezharmia

Metric Zynlonta (loncastuximab tesirine-lpyl) Ezharmia (valemetostat tosilate)
Generic name Loncastuximab tesirine-lpyl Valemetostat tosilate
Indications Relapsed or refractory large B-cell lymphoma Currently in clinical trials for T-cell lymphoma and other malignancies
Mechanism of action CD19-directed antibody and alkylating agent conjugate EZH2 inhibitor
Brand names Zynlonta Ezharmia (not yet commercially available)
Administrative route IV infusion Oral (expected)
Side effects Fatigue, anemia, thrombocytopenia, neutropenia, etc. Not fully characterized, clinical trials ongoing
Contraindications Hypersensitivity to loncastuximab tesirine-lpyl or its excipients Not yet determined
Drug class Antibody-drug conjugate Epigenetic modifier
Manufacturer ADC Therapeutics Daiichi Sankyo

Efficacy

Zynlonta (loncastuximab tesirine-lpyl) for Lymphoma

Zynlonta, also known by its generic name loncastuximab tesirine-lpyl, is a CD19-directed antibody and alkylating agent conjugate used for the treatment of certain types of lymphoma. Specifically, it is indicated for the treatment of adult patients with relapsed or refractory large B-cell lymphoma after two or more lines of systemic therapy. The efficacy of Zynlonta in this context was evaluated in a multicenter, single-arm, open-label clinical trial. Patients treated with Zynlonta showed a meaningful overall response rate (ORR), which is a measure of the proportion of patients who have a significant reduction in tumor burden. The duration of response (DOR) for those who achieved a response was also a critical endpoint in assessing the efficacy of this treatment.

The clinical trial results demonstrated that a significant number of patients achieved partial or complete remission, indicating that Zynlonta can be an effective treatment option for individuals with relapsed or refractory large B-cell lymphoma. However, the response to treatment can vary, and not all patients may experience the same level of efficacy. The safety and efficacy of Zynlonta for other types of lymphoma or in different settings have not been established, and its use is guided by the specific indications approved by regulatory agencies.

Ezharmia (valemetostat tosilate) for Lymphoma

Ezharmia, with the generic name valemetostat tosilate, is an investigational agent that is being studied for its potential use in treating various types of lymphoma. Valemetostat tosilate is a dual inhibitor of EZH1 and EZH2, which are enzymes that can affect gene expression. By inhibiting these enzymes, valemetostat tosilate is thought to have antitumor effects. The efficacy of Ezharmia for the treatment of lymphoma is being evaluated in clinical trials, and the outcomes of these studies will determine its potential role in the management of this disease.

As of the knowledge cutoff date, Ezharmia has not been approved by major regulatory agencies like the U.S. Food and Drug Administration (FDA) for the treatment of lymphoma. Clinical trials are essential to assess the efficacy, safety, and tolerability of Ezharmia in patients with lymphoma. These studies will provide data on the ORR, DOR, complete response rate, and other important metrics that will inform the potential use of Ezharmia in clinical practice. Until the results of these trials are available and regulatory approvals are granted, the use of Ezharmia for lymphoma remains investigational.

Regulatory Agency Approvals

Zynlonta
  • European Medical Agency (EMA), European Union
  • Food and Drug Administration (FDA), USA
Ezharmia
  • Pharmaceuticals and Medical Devices Agency (PMDA), Japan

Access Zynlonta or Ezharmia today

If Zynlonta or Ezharmia are not approved or available in your country (e.g. due to supply issues), you can access them via Everyone.org.

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