| Asthma
Nucala vs Rayos
Side-by-side clinical, coverage, and cost comparison for asthma.Deep comparison between: Nucala vs Rayos with Prescriber.AI
AI compares prescribing info and payer-specific access barriers across 1,200+ formularies. Here's a preview of what prescribers are already asking.Safety signalsRayos has a higher rate of injection site reactions vs Nucala based on FDA-approved prescribing information
Coverage gaps3 major payers require step therapy for Rayos but not Nucala, including UnitedHealthcare
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Category
Nucala
Rayos
At A Glance
SC injection
Every 4 weeks
IL-5 antagonist
Oral
Daily
Corticosteroid
Indications
- Asthma
- Chronic rhinosinusitis with multiple nasal polyps
- Chronic Obstructive Airway Disease
- Eosinophilic granulomatosis with polyangiitis
- Hypereosinophilic syndrome
- Dermatitis, Atopic
- Allergic rhinitis (disorder)
- Serum Sickness
- Dermatitis Herpetiformis
- Contact Dermatitis
- Exfoliative dermatitis
- Mycosis Fungoides
- Pemphigus
- Erythema Multiforme
- Congenital Adrenal Hyperplasia
- Hypercalcemia
- thyroiditis; nonsuppurative
- Adrenal gland hypofunction
- Crohn Disease
- Ulcerative Colitis
- Autoimmune hemolytic anemia
- Anemia, Diamond-Blackfan
- Immune thrombocytopenic purpura
- Pure Red-Cell Aplasia
- Acute leukemia
- Lymphoma, Non-Hodgkin
- Multiple Sclerosis
- Cerebral Edema
- Ophthalmia, Sympathetic
- Uveitis
- Chronic Obstructive Airway Disease
- Aspergillosis, Allergic Bronchopulmonary
- Aspiration pneumonitis
- Asthma
- Tuberculosis
- Extrinsic allergic alveolitis
- Bronchiolitis Obliterans Organizing Pneumonia
- Idiopathic eosinophilic pneumonitis
- Idiopathic Pulmonary Fibrosis
- Pneumonia, Lipid
- Sarcoidosis
- Nephrotic Syndrome
- Primary gout
- Ankylosing spondylitis
- Dermatomyositis
- Polymyalgia Rheumatica
- Arthritis, Psoriatic
- Polychondritis, Relapsing
- Rheumatoid Arthritis
- Sjogren's Syndrome
- Lupus Erythematosus, Systemic
- Vasculitis
- Trichinellosis
- Tuberculosis, Meningeal
Dosing
Asthma (>=12 years), Chronic rhinosinusitis with multiple nasal polyps, Chronic Obstructive Airway Disease 100 mg SC once every 4 weeks.
Asthma (6-11 years) 40 mg SC once every 4 weeks.
Eosinophilic granulomatosis with polyangiitis, Hypereosinophilic syndrome 300 mg SC once every 4 weeks, administered as 3 separate 100 mg injections at least 5 cm apart.
All indications Initial dose 5-60 mg once daily with food; RAYOS releases active substance approximately 4 hours after intake. Titrate to lowest effective maintenance dose; withdraw gradually after long-term or high-dose therapy.
Contraindications
- History of hypersensitivity to mepolizumab or excipients in the formulation
- Known hypersensitivity to prednisone or any excipient
Adverse Reactions
Most common (>=3%) headache, injection site reaction, back pain, fatigue, oropharyngeal pain, arthralgia, diarrhea, urinary tract infection, cough, pruritus, eczema
Serious herpes zoster
Postmarketing hypersensitivity reactions including anaphylaxis
Most common Fluid retention, altered glucose tolerance, elevated blood pressure, behavioral and mood changes, increased appetite and weight gain
Serious Anaphylaxis, cardiac arrest, circulatory collapse, congestive heart failure, myocardial rupture, pulmonary edema, peptic ulcer with perforation and hemorrhage, osteonecrosis, pathologic fracture, adrenocortical insufficiency, convulsions, increased intracranial pressure
Postmarketing No new safety concerns identified beyond those established for immediate-release prednisone
Pharmacology
Mepolizumab is an IL-5 antagonist (IgG1 kappa) that binds IL-5 with high affinity, blocking its binding to the alpha chain of the IL-5 receptor complex on eosinophils, thereby inhibiting IL-5 signaling and reducing eosinophil production and survival.
Prednisone is a synthetic corticosteroid with potent anti-inflammatory and immunosuppressive properties that suppresses inflammatory processes (edema, capillary dilatation, leukocyte migration), modifies immune responses, and produces metabolic effects including promotion of gluconeogenesis, protein catabolism, and altered calcium and electrolyte balance.
Enter your patient's insuranceCheck specific coverage details for your patient.
Most Common Insurance
Anthem BCBS
Nucala
- Covered on 5 commercial plans
- PA (11/12) · Step Therapy (11/12) · Qty limit (11/12)
Rayos
- Covered on 5 commercial plans
- PA (6/12) · Step Therapy (1/12) · Qty limit (0/12)
UnitedHealthcare
Nucala
- Covered on 4 commercial plans
- PA (6/8) · Step Therapy (6/8) · Qty limit (6/8)
Rayos
- Covered on 4 commercial plans
- PA (0/8) · Step Therapy (0/8) · Qty limit (0/8)
Humana
Nucala
- Covered on 0 commercial plans
- PA (3/3) · Step Therapy (3/3) · Qty limit (3/3)
Rayos
- Covered on 0 commercial plans
- PA (1/3) · Step Therapy (0/3) · Qty limit (0/3)
Coverage data sourced from MMIT. Updated monthly.
Savings
Cost estimate not availableAccessia Health: Asthma - Private Insurance
Commercial or private insurance
Medicare, Medicaid, VA, TRICARE
No savings programs available for Rayos.
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Clinical data sourced from FDA-approved labeling. Coverage data via MMIT. Updated monthly.