If you suffer from nasal polyps, you know how disruptive they can be—constant congestion, sinus pressure, loss of smell, and repeated steroid use or even surgery.
Fortunately, advanced biologic therapies like Dupixent (dupilumab) and Tezspire (tezepelumab) are changing how we treat chronic sinus disease.
At Allergy & Asthma Care of Los Angeles, we help patients choose the most effective, personalized treatment. Here’s what you need to know.
What Are Nasal Polyps?
Nasal polyps are non-cancerous growths in the sinuses caused by chronic inflammation, often part of:
- Chronic rhinosinusitis with nasal polyps (CRSwNP)
- Asthma
- Allergies
- Aspirin-exacerbated respiratory disease (AERD)
Most patients have type 2 inflammation, which is the main target of modern biologic therapies.
How Do Dupixent and Tezspire Work?
Dupixent (Dupilumab)
- Blocks IL-4 and IL-13, key drivers of allergic inflammation
- Reduces:
- Nasal polyp size
- Mucus production
- IgE-mediated inflammation
➡️ Think of Dupixent as a targeted therapy for allergic (type 2) inflammation
Tezspire (Tezepelumab)
- Blocks TSLP, an upstream “master switch” of inflammation
- Works across:
- Type 2 AND non–type 2 inflammation
➡️ Think of Tezspire as a broader immune reset
Key Difference
- Dupixent = targeted approach
- Tezspire = broader, upstream approach
FDA Approval for Nasal Polyps
- Dupixent: Approved since 2019
- Tezspire: Approved for nasal polyps in 2025
➡️ Dupixent has a longer track record, but Tezspire is a newer and promising option.
Which One Works Better?
Dupixent: Proven Results
Clinical trials show:
- Significant reduction in polyp size
- Improved nasal congestion
- Restoration of sense of smell
- Reduced need for oral steroids and surgery
➡️ This is currently the most established biologic for nasal polyps
Tezspire: New and Promising
Early studies show:
- Strong reduction in inflammation and symptoms
- Major decrease in steroid dependence
- Potential benefit even in non-allergic patients
➡️ Especially useful in hard-to-treat or atypical cases
Dosing and Convenience
- Dupixent: Injection every 2 weeks (can be done at home)
- Tezspire: Injection once monthly (often given in office)
➡️ Tezspire is more convenient, but Dupixent offers faster flexibility.
Side Effects
Dupixent
- Eye irritation or conjunctivitis
- Injection site reactions
- Rare eosinophilia
Tezspire
- Joint or back pain
- Injection reactions
- Generally well tolerated
➡️ Both medications are considered safe and effective
Which Patients Should Choose Dupixent?
Dupixent is usually the first choice if you have:
- Allergies or high IgE
- Asthma
- Eczema (atopic dermatitis)
- Strong type 2 inflammation
Which Patients Should Consider Tezspire?
Tezspire may be better if:
- You did not respond to Dupixent or other biologics
- Your inflammation is not clearly allergic
- You want monthly dosing
- You have complex or refractory sinus disease
Dupixent vs. Tezspire: Quick Comparison
| Feature | Dupixent | Tezspire |
|---|---|---|
| Target | IL-4 / IL-13 | TSLP |
| Best for | Allergic inflammation | Broad inflammation |
| Approval for polyps | 2019 | 2025 |
| Dosing | Every 2 weeks | Monthly |
| Track record | Extensive | Emerging |
Expert Take: Which Is Better?
For most patients:
➡️ Dupixent remains the first-line biologic for nasal polyps due to its strong evidence and long-term results.
However:
➡️ Tezspire is an excellent option for patients who:
- Don’t respond to Dupixent
- Have complex or non-allergic disease
- Want a broader mechanism of action
When Should You See an Allergist?
If you have:
- Persistent nasal congestion despite sprays
- Recurrent sinus infections
- Loss of smell
- Need for repeated steroids
- Prior sinus surgery with recurrence
You may be a candidate for biologic therapy.
Personalized Nasal Polyp Treatment in Los Angeles
At Allergy & Asthma Care of Los Angeles, we specialize in:
- Advanced biologic therapies (Dupixent, Tezspire, and more)
- Comprehensive sinus and allergy evaluation
- Personalized treatment plans
Frequently Asked Questions
Is Dupixent or Tezspire better for nasal polyps?
Dupixent is currently the preferred first-line treatment, but Tezspire is a strong alternative for more complex cases.
Can Tezspire be used after Dupixent fails?
Yes—Tezspire is often considered when patients don’t respond adequately to Dupixent.
Do these medications replace sinus surgery?
In many cases, they can reduce or delay the need for surgery, but some patients may still benefit from a combined approach.
How quickly do these treatments work?
- Dupixent: Often within weeks
- Tezspire: May take several weeks to months
Final Thoughts
Biologic therapy has revolutionized nasal polyp treatment.
- Dupixent = proven, targeted, first-line
- Tezspire = newer, broader, and promising
The best choice depends on your individual inflammation profile and treatment history.