Polivy (polatuzumab vedotin-piiq) vs Zynlonta (loncastuximab tesirine-lpyl)
Polivy (polatuzumab vedotin-piiq) vs Zynlonta (loncastuximab tesirine-lpyl)
Polivy (polatuzumab vedotin-piiq) and Zynlonta (loncastuximab tesirine-lpyl) are both antibody-drug conjugates used in the treatment of certain types of B-cell lymphoma, but they target different antigens on the cancer cells. Polivy is designed to target CD79b and is approved for use in combination with bendamustine and rituximab for the treatment of relapsed or refractory diffuse large B-cell lymphoma (DLBCL) after at least two prior therapies. In contrast, Zynlonta targets CD19 and is approved for the treatment of adult patients with relapsed or refractory large B-cell lymphoma after two or more lines of systemic therapy. The choice between the two would depend on the specific characteristics of the lymphoma, previous treatments, and the patient's overall health profile, which should be thoroughly discussed with a healthcare professional.
Difference between Polivy and Zynlonta
Metric | Polivy (polatuzumab vedotin-piiq) | Zynlonta (loncastuximab tesirine-lpyl) |
---|---|---|
Generic name | Polatuzumab vedotin-piiq | Loncastuximab tesirine-lpyl |
Indications | Treatment of relapsed or refractory diffuse large B-cell lymphoma (DLBCL) | Treatment of relapsed or refractory large B-cell lymphoma |
Mechanism of action | CD79b-directed antibody-drug conjugate | CD19-directed antibody-drug conjugate |
Brand names | Polivy | Zynlonta |
Administrative route | Intravenous infusion | Intravenous infusion |
Side effects | Neutropenia, anemia, thrombocytopenia, diarrhea, fatigue | Thrombocytopenia, neutropenia, increased gamma-glutamyltransferase, anemia, hyperglycemia |
Contraindications | Hypersensitivity to polatuzumab vedotin-piiq or any of its excipients | Hypersensitivity to loncastuximab tesirine-lpyl or any of its excipients |
Drug class | Antibody-drug conjugate | Antibody-drug conjugate |
Manufacturer | Genentech, Inc. | ADC Therapeutics SA |
Efficacy
Efficacy of Polivy (polatuzumab vedotin-piiq) for Lymphoma
Polivy (polatuzumab vedotin-piiq) is an antibody-drug conjugate approved by the FDA for the treatment of certain types of lymphoma. Specifically, it is indicated for use in combination with bendamustine and a rituximab product for the treatment of adult patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL), not otherwise specified, after at least two prior therapies. The efficacy of Polivy was demonstrated in a pivotal clinical trial, which showed that the combination with bendamustine and rituximab significantly improved response rates and survival outcomes compared to bendamustine and rituximab alone. Patients treated with the Polivy combination regimen experienced a higher complete response rate and a longer progression-free survival, indicating its effectiveness in this challenging to treat patient population.
Efficacy of Zynlonta (loncastuximab tesirine-lpyl) for Lymphoma
Zynlonta (loncastuximab tesirine-lpyl) is another antibody-drug conjugate that has been approved by the FDA for the treatment of lymphoma. It is specifically 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 was evaluated in a multicenter, single-arm, open-label trial. The results showed a meaningful overall response rate with a significant proportion of patients achieving a complete response. The duration of response for those who achieved a complete or partial response was also notable, suggesting that Zynlonta is effective for patients with limited treatment options.
Both Polivy and Zynlonta represent advancements in the treatment of relapsed or refractory large B-cell lymphoma, offering new hope for patients who have not responded to or have relapsed after previous therapies. Their efficacy in improving response rates and survival outcomes highlights their potential as valuable therapeutic options in the management of this aggressive form of lymphoma. However, it is important to note that individual responses to these treatments can vary, and they are associated with specific side effect profiles that need to be managed under the care of a healthcare professional.
When considering the use of these medications, healthcare providers must weigh the potential benefits against the risks and consider the individual patient's treatment history and overall health status. As with any medication, the decision to use Polivy or Zynlonta should be made in the context of a comprehensive treatment plan and in consultation with a specialist in oncology who is experienced in the management of lymphoma.
Regulatory Agency Approvals
Polivy
Zynlonta
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