Allergy and Immunology

Peanut Allergy Treatment

We are excited to announce Palforzia, the first drug for peanut allergy oral immunotherapy treatment, has just been approved by the FDA. The drug consists of pre-measured doses of peanut flour and treatment with Palforzia occurs over several months. This treatment will not be available in any health care facility until late February 2020 based on communication from the manufacturer. 

If you are interested in learning more about this treatment or would like to undergo treatment with Palforzia, you can call us at 832-227-3663 to schedule an appointment for an initial assessment and consultation. Texas Children’s Hospital will offer Palforzia as soon as it is available on the market. 

Please note: If you already have a scheduled appointment for peanut oral immunotherapy assessment, you do not need to call again.


Food OIT is the administration of small, gradually increasing, doses of the specific food that you/your child are allergic to, with the aim to increase the amount of food (threshold) that you can tolerate. This process is called ‘desensitization.'

‘Desensitization’ refers to an increase in the amount of allergen/food you can eat before reacting and requires ongoing (daily) dose ingestion. ‘Long term tolerance’ means you can eat any amount of food and have breaks from eating the food for periods of time, without any problems or the need for ongoing treatment (daily dosing). We know, from research studies that food OIT results in desensitization in the majority of people, but NOT long-term tolerance. Currently there is little evidence on long term tolerance with OIT, but studies are still ongoing in that area.

Food OIT requires a significant time commitment and multiple hospital visits.

Specifically, for Peanut: OIT with Palforzia will involve an initial visit for assessment (to ensure it is safe to undergo treatment with the drug), a visit for rapid initial dose escalation and a minimum of 11 up-dosing visits (for regular dose increases) approximately every 2 weeks.

The goal is to reach a daily dose which will protect you against accidental exposure. Over time (usually months) of continued (daily) treatment, most patients (not all) will be able to tolerate larger amounts of the allergenic food. The daily maintenance dose must be ingested in order to maintain desensitization.

The doses are given orally.

Specifically, for Peanut: Palforzia consists of capsules containing peanut powder. The capsules will be opened and the peanut powder will need to be mixed with semisolid food  (e.g. apple sauce, yoghurt). Your allergist will advise on each dose you will need to take.

Protection from accidental exposure is the main benefit of Food OIT. Improvement in quality of life has also been reported in research studies.

Food oral immunotherapy may cause allergic symptoms including sneezing, runny nose, hives and angioedema (swelling below the surface of the skin), flushing, flares of eczema, itching of the eyes, nose, mouth or throat, nausea, vomiting, stomach discomfort or pain, cramping, cough, wheezing, and/or shortness of breath. The majority of these reactions are mild/moderate in severity, but severe allergic reactions called ‘anaphylaxis’ have also been reported with OIT. Anaphylaxis involves combinations of the allergic symptoms listed above and can range from mild to severe. It is immediately treated with Epinephrine and any additional medication, as appropriate for each reaction. Allergic reactions due to food OIT may occur right after dosing or may be delayed; can also occur unexpectedly, with a dose that has previously been tolerated and are often associated with co-factors such as infection, exercise, menstruation and sleep deprivation.

All patients undertaking treatment with Palforzia for peanut OIT will need to be enrolled in the Palforzia Risk Evaluation and Mitigation Strategy (REMS) Program.

It is crucial that emergency medication is ALWAYS available with you/your child as reactions can be unexpected during food OIT.

How do I know if I am eligible for this treatment?