Aimovig (erenumab) vs Ajovy (fremanezumab-vfrm)
Aimovig (erenumab) vs Ajovy (fremanezumab-vfrm)
Aimovig (erenumab) and Ajovy (fremanezumab-vfrm) are both preventive medications for migraine, but they differ in their dosing schedules and molecular targets. Aimovig is a monthly injection that blocks the calcitonin gene-related peptide (CGRP) receptor, which is believed to play a critical role in migraine, while Ajovy can be administered either monthly or quarterly and targets the CGRP ligand itself. When deciding between the two, a patient should consider factors such as their preference for dosing frequency, potential side effects, response to treatment, and any recommendations from their healthcare provider based on individual health history and condition.
Difference between Aimovig and Ajovy
Metric | Aimovig (erenumab) | Ajovy (fremanezumab-vfrm) |
---|---|---|
Generic name | Erenumab | Fremanezumab |
Indications | Preventive treatment of migraine in adults | Preventive treatment of migraine in adults |
Mechanism of action | Calcitonin gene-related peptide receptor (CGRP) antagonist | Calcitonin gene-related peptide (CGRP) ligand inhibitor |
Brand names | Aimovig | Ajovy |
Administrative route | Subcutaneous injection | Subcutaneous injection |
Side effects | Injection site reactions, constipation, muscle spasms, and others | Injection site reactions, hypersensitivity reactions, and others |
Contraindications | Serious hypersensitivity to erenumab or any of its components | Serious hypersensitivity to fremanezumab or any of its components |
Drug class | Monoclonal antibody | Monoclonal antibody |
Manufacturer | Amgen Inc. | Teva Pharmaceuticals |
Efficacy
Efficacy of Aimovig (Erenumab) for Migraine
Aimovig (erenumab) is a novel therapeutic agent specifically designed to prevent migraines in adults. It belongs to a class of drugs known as calcitonin gene-related peptide (CGRP) receptor antagonists. Clinical trials have demonstrated its efficacy in reducing the number of migraine days per month. In these studies, patients treated with Aimovig reported experiencing, on average, one to two fewer migraine days per month compared to those on placebo. Furthermore, a subset of patients experienced a reduction of at least 50% in the number of migraine days, which indicates a significant improvement in their condition.
Long-term Outcomes and Safety Profile
Long-term studies of Aimovig have also been conducted, showing sustained efficacy and a consistent safety profile over time. Patients who continued treatment with Aimovig for extended periods, such as one year or more, maintained the reductions in monthly migraine days with no new safety concerns. The most common side effects reported were injection site reactions and constipation, but these were generally mild to moderate in severity.
Efficacy of Ajovy (Fremanezumab-vfrm) for Migraine
Ajovy (fremanezumab-vfrm) is another CGRP receptor antagonist indicated for the preventive treatment of migraine in adults. Clinical trials have evaluated its efficacy in reducing the frequency of migraine attacks. Ajovy has been shown to reduce the monthly average number of migraine days. Similar to Aimovig, a significant proportion of patients treated with Ajovy experienced a 50% or greater reduction in the number of migraine days per month. This reduction was observed across various dosing regimens, including both monthly and quarterly injections.
Comparative Efficacy and Considerations
When comparing the efficacy of Aimovig and Ajovy, both medications have shown to be effective in reducing the frequency of migraine days in clinical trial settings. The choice between these two agents may be influenced by patient-specific factors, such as response to treatment, tolerability, dosing preference, and insurance coverage. It is important for patients to discuss with their healthcare providers the most appropriate treatment option based on their individual needs and medical history.
Regulatory Agency Approvals
Aimovig
Ajovy
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