Monjuvi (tafasitamab-cxix) vs Darvias (darinaparsin) ()

Monjuvi (tafasitamab-cxix) vs Darvias (darinaparsin) ()

Monjuvi (tafasitamab-cxix) is an anti-CD19 monoclonal antibody approved for use in combination with lenalidomide for the treatment of adult patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL) who are not eligible for autologous stem cell transplant. Darzalex (daratumumab), not Darvias, is a CD38-directed cytolytic antibody indicated for multiple myeloma patients, with various approvals for use in combination with other agents or as monotherapy depending on the treatment line and patient eligibility. When deciding between these two medicines, it is crucial to consider the specific type of hematological malignancy diagnosed, as Monjuvi is used for DLBCL while Darzalex is specific to multiple myeloma, and the treatment decision should be guided by a healthcare professional based on the individual patient's medical condition, history, and treatment goals.

Difference between Monjuvi and Darvias (darinaparsin)

Metric Monjuvi (tafasitamab-cxix) Darvias (darinaparsin)
Generic name Tafasitamab-cxix Darinaparsin
Indications Relapsed or refractory diffuse large B-cell lymphoma Investigational for various types of cancer including hematologic malignancies and solid tumors
Mechanism of action CD19-directed cytolytic antibody Organic arsenic compound; exact mechanism not fully understood but involves induction of apoptosis
Brand names Monjuvi Darvias (not widely recognized as a brand name, may still be investigational)
Administrative route Intravenous infusion Intravenous infusion
Side effects Fatigue, diarrhea, fever, edema, respiratory tract infections Nausea, vomiting, fatigue, abdominal pain, peripheral neuropathy
Contraindications Hypersensitivity to tafasitamab-cxix or any of its excipients Not fully established; use caution in patients with existing heart conditions or severe renal impairment
Drug class Monoclonal antibody Organic arsenical
Manufacturer MorphoSys ZIOPHARM Oncology

Efficacy

Monjuvi (tafasitamab-cxix) for Lymphoma

Monjuvi (tafasitamab-cxix) is a CD19-directed cytolytic antibody indicated for the treatment of adult patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL). This medication is not intended for the treatment of patients with DLBCL who are eligible for autologous stem cell transplant (ASCT). The efficacy of Monjuvi was evaluated in a multicenter, single-arm trial where patients received tafasitamab-cxix in combination with lenalidomide. The overall response rate (ORR), which includes complete and partial responses, was observed as a primary endpoint, and the results showed a significant proportion of patients achieved tumor shrinkage, thereby indicating the efficacy of this combination in the studied population.

The efficacy of Monjuvi is enhanced when used in combination with lenalidomide, an immunomodulatory agent, during the initial treatment phase, followed by Monjuvi monotherapy. Clinical trials have demonstrated that this combination therapy can lead to improved outcomes in terms of response rates and duration of response compared to what has been historically observed with other treatments for relapsed or refractory DLBCL. However, it is important to note that Monjuvi has not been compared directly with other treatments in a randomized clinical trial, which is necessary to definitively determine its relative efficacy.

Darzalex (darinaparsin) for Lymphoma

Darzalex (daratumumab) is a monoclonal antibody that targets CD38 and is used in the treatment of multiple myeloma. However, Darzalex is not specifically indicated for the treatment of lymphoma. There may be some confusion with Darinaparsin (SP-02), which is a small molecule organic arsenic derivative being investigated for the treatment of various types of cancer, including lymphoma. It is important to distinguish between these two medications, as they have different indications and mechanisms of action.

Regarding Darinaparsin, it has been studied in clinical trials for the treatment of lymphoma, including peripheral T-cell lymphoma (PTCL). The efficacy of Darinaparsin has been evaluated in phase I and II clinical trials, where it has shown some activity against lymphoma cells. However, as of the knowledge cutoff date, Darinaparsin has not received approval from regulatory agencies for the treatment of lymphoma, and its efficacy and safety profile are still being determined through ongoing clinical research. Therefore, information on the efficacy of Darinaparsin for lymphoma is limited to data from clinical studies and has not yet been established in a clinical setting.

Regulatory Agency Approvals

Monjuvi
  • Food and Drug Administration (FDA), USA
Darvias (darinaparsin)
  • Pharmaceuticals and Medical Devices Agency (PMDA), Japan

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If Monjuvi or Darvias (darinaparsin) 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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