Uncover the Impact Allergy Immunotherapy​

Uncover the Impact of Allergy Immunotherapy

Sublingual Immunotherapy (SLIT) vs. Subcutaneous Immunotherapy (SCIT)

Physicians and patients both benefit from safe, simple, and effective allergy testing and treatment

Study Overview

In 2003, Dr. Walter Canonica and his team at the University of Genoa, Italy, conducted a landmark study on immunotherapy for allergies. This study remains one of the most significant contributions to the field  in part because it contains the first long term, longitudinal study proving continuing effectiveness.

Dr. Canonica and his team observed that various modalities of immunotherapy have been utilized for over a century, starting with subcutaneous immunotherapy (SCIT). They explored different methods including oral, bronchial, and nasal immunotherapy, ultimately concluding that sublingual immunotherapy (SLIT) offers the best balance of efficacy and safety.

Key Findings

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Historical Perspective:

Immunotherapy modalities have evolved over the past century, with SLIT emerging in the mid-1980s.

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Effectiveness and Safety:

  • A “double-blind double-dummy” study demonstrated equivalent effectiveness of SLIT and SCIT.
  • Another study found that SLIT had far superior safety and tolerability compared to SCIT.
  • Pediatric studies indicated negligible side effects for SLIT, with only 3% of patients experiencing side effects.
  • SLIT controlled symptoms sooner than SCIT.
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Compliance and Convenience:

  • SCIT discontinuation rates ranged from 10% to 34%, often due to the inconvenience of clinic visits.
  • SLIT allows for at-home treatment, significantly improving patient compliance and adherence to the treatment regimen.

Long-term Benefits

A ten-year longitudinal study demonstrated that patients who completed SLIT treatment for allergic asthma remained symptom-free ten years later.

Impact & Applications

As highlighted in last month’s newsletter, immunotherapy offers substantial cost savings for patients. This month’s study reveals that SLIT provides additional benefits such as quicker symptom relief, higher tolerability, minimal side effects, and the convenience of at-home administration. These factors contribute to better patient compliance and overall satisfaction with the treatment, driving superior patient outcomes.

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Download the Full Study:

To dive deeper into the findings and understand how SLIT can benefit your patients and practice, download the full study PDF.

Get the Study ➤