Skip to main content

Revolutionizing Allergy Treatment: The Dawn of a New Era with Allergy Immunotherapy Tablets

Written by Andrew Le, MD

UpdatedApril 19, 2024

The medical journal article we'll discuss is a comprehensive review of allergy immunotherapy, a treatment approach that is shaping the future of allergy care. The article is authored by esteemed scientists Jørgen Nedergaard Larsen, Louise Broge, and Henrik Jacobi and published in the Drug Discovery Today journal.

The first part of the article introduces the pressing issue of allergic diseases, which have been on the rise globally for the past four decades. Allergic diseases, especially among young people, are becoming increasingly common, with up to 30% of the general population being affected by respiratory allergies. The authors highlight the staggering estimate by the World Health Organization (WHO) that 235 million people have asthma.

Manifestations of allergic diseases include asthma, rhinitis (inflammation of the nasal passages), conjunctivitis (eye inflammation), eczema, hives, and even life-threatening reactions like anaphylaxis. These issues significantly impact sleep, school, work performance, and overall quality of life, thus posing a substantial economic burden to societies across the globe.

Traditional pharmacotherapy is the use of medications which offers only symptom relief and doesn't alter the underlying immune response that causes the allergy. This is where allergy immunotherapy steps in. With a history dating back about 100 years, allergy immunotherapy involves administering controlled exposures to allergens in an effort to reprogram the immune system, ultimately reducing or eliminating allergic reactions.

In its original form, allergy immunotherapy was given as a series of injections under the skin (subcutaneous immunotherapy, or SCIT). More recently, however, tablet-based sublingual allergy immunotherapy (SLIT) has come to the forefront, offering a more patient-friendly option. SLIT involves placing a tablet containing the allergen extract under the tongue (sublingual), where it dissolves and gets absorbed into the bloodstream. This innovation in treatment has shown significant potential in both controlling symptoms and modifying the course of allergic diseases.

SLIT tablets are backed by extensive clinical documentation and are designed to be taken at home, making it much more convenient for patients compared to the injections which often require frequent doctor’s visits. With SLIT, patients can self-administer their treatment, leading to improved adherence and outcomes.

The article goes into detail about the mechanisms of allergic reactions, explaining that allergy is fundamentally an issue with the immune system. When someone with a genetic predisposition is exposed to common allergens, such as pollen, dust mites, or certain foods, their immune system can overreact, leading to the symptoms many are familiar with. Central to this reaction is Immunoglobulin E (IgE), a type of antibody that binds allergens and triggers a cascade of cellular responses resulting in the symptoms of an allergic reaction.

The authors argue for the inclusion of allergy immunotherapy in optimal treatment strategies due to its disease-modifying potential. Not only can it improve the quality of life for patients, but it can also be cost-effective in the long run.

In closing, the article suggests that allergy immunotherapy tablets represent state-of-the-art treatment that can modify the disease itself by preventing its progression and potentially even preventing the disease from developing in individuals at high risk.

The review is valuable for its in-depth examination of allergy immunotherapy's past, present, and future role in treating allergic diseases. It underscores the significance of continued research and development in this field, as well as the adoption of these advanced treatment methods into the routine care of those suffering from allergies.

References

Larsen JN, Broge L, Jacobi H. Allergy immunotherapy: the future of allergy treatment. Drug Discov Today. 2016 Jan;21(1):26-37. doi: 10.1016/j.drudis.2015.07.010. Epub 2015 Sep 2. PMID: 26327511.