If you’ve been living with ABPA and find your symptoms keep coming back despite steroids and antifungal treatment, your consultant may suggest a biologic (monoclonal antibody). One of the newer options being offered to some patients in the UK is Tezepelumab, brand name Tezspire.


💡 What is Tezepelumab?

Tezepelumab is a biologic injection that targets a molecule called TSLP (thymic stromal lymphopoietin). TSLP is an early trigger in the chain reaction that leads to inflammation in the lungs. By blocking it, Tezepelumab can calm multiple allergic and eosinophilic pathways, which makes it different from most other biologics that only block one type of inflammation.


✅ Who Might Be Offered Tezepelumab?

Tezepelumab is approved by NICE for use in the NHS in people aged 12+ with severe asthma, especially those who:

  • Are on high-dose inhaled steroids and still struggling

  • Have had 3+ asthma flare-ups in the last year, or

  • Need to take regular oral steroids

If you have both ABPA and severe asthma, you might be offered Tezepelumab—even though it isn’t specifically licensed for ABPA.


🔍 How Does It Compare to Other Biologics?

Here’s a quick comparison:

Biologic Name Target NHS Use Needs High IgE or Eosinophils?
Omalizumab IgE Severe allergic asthma ✅ Yes – High IgE needed
Mepolizumab IL-5 Eosinophilic asthma ✅ Yes – High eosinophils needed
Benralizumab IL-5 receptor Eosinophilic asthma ✅ Yes
Dupilumab IL-4/13 Allergic asthma ❌ No, but usually allergy-type
Tezepelumab TSLP (upstream) Severe asthma (NICE-approved) ❌ No – works across all types

🧠 Why this matters: If your IgE or eosinophil levels aren’t high, Tezepelumab may still work for you—even when other biologics aren’t suitable.


💷 Is Tezepelumab Expensive?

Yes—but it’s funded on the NHS for patients who meet NICE criteria.

  • List price: ~£1,265 per injection (monthly)

  • NHS pays less through a confidential discount agreement

  • It’s not necessarily cheaper than other biologics, but it offers wider eligibility and broad activity


⚖️ Is It Better Than Other Biologics?

It depends. Some patients respond well to older biologics like omalizumab or mepolizumab, especially if their ABPA overlaps with allergy or eosinophilic asthma. But Tezepelumab may be a better fit if:

  • You don’t qualify for the others (e.g. your IgE is too low)

  • You’ve tried other biologics and they didn’t help enough

  • Your ABPA overlaps with hard-to-control asthma

While Tezepelumab isn’t licensed specifically for ABPA, its upstream targeting may help reduce flare-ups in those with overlapping conditions.


💉 Side Effects

Most people tolerate Tezepelumab well. Possible side effects include:

  • Injection site reactions (redness, swelling)

  • Headache or sore throat

  • Allergic reaction (rare)

It’s given by subcutaneous injection once a month, often at hospital initially, but home administration may be an option later on.


👩‍⚕️ What to Ask Your Consultant

  • Why are you recommending this biologic for me?

  • Will it help with both my ABPA and asthma?

  • How soon should I expect results?

  • Can I stop steroids if this works?

Keeping a symptom diary and reporting back is really useful to your team.


🧾 Summary

Question Tezepelumab (Tezspire) Answer
Licensed for ABPA? ❌ No, but used off-label when asthma overlaps
Approved for NHS use? ✅ Yes – via NICE for severe asthma
IgE or eosinophils needed? ❌ No
Dose/frequency Monthly injection
Broad anti-inflammatory effect? ✅ Yes – acts early in the pathway

Tezepelumab is opening new doors for people with ABPA and severe asthma who’ve struggled with flare-ups, steroid side effects, or biologics that didn’t work. It’s not for everyone, but it’s worth a conversation with your specialist.

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