Fasenra (benralizumab) prior authorization denied appeal

Anti-IL-5Rα for eosinophilic asthma, EGPA, HES

To appeal a denied prior authorization for Fasenra (benralizumab), file a written appeal within 180 days. The appeal must cite the insurer's clinical policy, include a letter of medical necessity from the prescriber, and document each criterion the policy requires. The most common winning evidence is documented prior therapy history and a specialist letter.

Typical PA criteria

  • Severe asthma with eosinophil count ≥300/µL (or ≥150/µL on OCS)
  • ICS/LABA optimization
  • Age ≥6 (asthma) or per label
  • Pulmonology or allergy prescriber

Why your PA was denied

  • Eosinophil count below threshold
  • ICS/LABA optimization not documented
  • Non-specialist prescriber
  • OCS dependence not documented

Evidence that overturns the denial

  • Peripheral eosinophil count within past 12 months
  • ICS/LABA regimen and adherence
  • OCS burst history with dates
  • ACT or exacerbation frequency

Q8W dosing after loading is a differentiator vs. Nucala; document any prior anti-IL-5 trials.

Draft a Fasenra (benralizumab) appeal letter

Free analysis identifies the cited policy and missing evidence. Then a finished letter that maps your chart to the criteria.

Draft my appeal letter

FAQ

Why was my Fasenra (benralizumab) prior authorization denied?+

The most common reasons are: Eosinophil count below threshold; ICS/LABA optimization not documented; Non-specialist prescriber. Your denial letter names the specific criteria you did not meet.

How do I appeal a Fasenra (benralizumab) denial?+

File a written appeal within 180 days that cites the insurer's clinical policy, includes a letter of medical necessity from the prescriber, and documents the criteria the insurer requires.

What evidence overturns a Fasenra (benralizumab) denial?+

Peripheral eosinophil count within past 12 months; ICS/LABA regimen and adherence; OCS burst history with dates.

What if the plan excludes Fasenra (benralizumab) entirely?+

Plan exclusions are different from medical-necessity denials. Check the Summary Plan Description. If the drug is fully excluded, an appeal will not overturn it; you may need a formulary exception or manufacturer assistance program.

Other drugs

Keep reading

Not legal or medical advice. This page is a self-help resource. You make your own decisions. Strip personal identifiers (name, date of birth, address, member ID) from any document before uploading or sharing. The information here summarizes commonly-published payer policies and federal rules; confirm against your specific plan document and the current denial letter before acting.