A novel dose-adjustment protocol for interrupted subcutaneous immunotherapy for allergic rhinitis
Abstract
Background: This study aimed to develop a novel dose strategy for subcutaneous immunotherapy to reduce medical waste and financial burdens for patients who are required to restart subcutaneous immunotherapy. Patients & methods: A prospective, nonrandomized concurrent controlled trial was performed to assess the safety and advantages of the novel dose-adjustment protocol compared with the conventional one. 76 subjects were grouped to receive novel or conventional dose-adjustment protocols. Results: The injections, visits and time needed to reach the pre-established dose with the novel regimen were decreased. Furthermore, there were no differences in side reactions between the two groups. Conclusion: The novel protocol seemed safe and well tolerated, offering the advantages of time efficiency and reduced healthcare costs.
Plain language summary
A common sickness people can acquire from house dust mites is called allergic rhinitis. One way to treat it is with regular shots of a special medicine made from dust mite allergens. This is termed subcutaneous immunotherapy. Patients need to take these shots in their arm for about 3–5 years. Initially, the shot is given once a week for at least 15 weeks; then the frequency can be reduced to every 4–8 weeks. However, if a patient misses their scheduled shot, they may have to start getting weekly shots again. This can lead to a lot of medical waste and can be expensive for patients. Therefore we developed a new way to give these shots. In this study, patients who needed to start weekly shots again were administered this new treatment plan. The new plan significantly reduced the number of doctor’s visits and shots. This new and improved treatment regimen is convenient and saves patients time and money. The side effects of this new treatment method were not higher compared with the traditional treatment. Therefore this new treatment method is safe, cost-effective and patient-friendly. It also saves time and reduces both medical waste and financial costs.
Papers of special note have been highlighted as: • of interest; •• of considerable interest
References
- 1. . Advances and highlights in allergic rhinitis. Allergy 76(11), 3383–3389 (2021). •• Describes recent major discoveries related to allergic rhinitis (AR), including risk factors, diagnostic strategies and precise underlying immunological mechanisms, as well as efficient therapies for AR during the global COVID-19 pandemic.
- 2. An increased prevalence of self-reported allergic rhinitis in major Chinese cities from 2005 to 2011. Allergy 71(8), 1170–1180 (2016).
- 3. . Quality of life in allergic rhinitis. Ther. Adv. Respir. Dis. 6(1), 25–39 (2012).
- 4. Prevalence of allergic rhinitis among elementary and middle school students in Changsha city and its impact on quality of life. J. Laryngol. Otol. 129(11), 1108–1114 (2015).
- 5. . Clinical practice. Allergic rhinitis. N. Engl. J. Med. 372(5), 456–463 (2015).
- 6. . Direct and indirect costs of allergic and non-allergic rhinitis in The Netherlands. Allergy 75(11), 2993–2996 (2020).
- 7. Five-year follow-up on the PAT study: specific immunotherapy and long-term prevention of asthma in children. Allergy 61(7), 855–859 (2006).
- 8. . Twelve-year follow-up after discontinuation of preseasonal grass pollen immunotherapy in childhood. Allergy 61(2), 198–201 (2006).
- 9. Chinese Society of Allergy guidelines for diagnosis and treatment of allergic rhinitis. Allergy Asthma Immunol. Res. 10(4), 300 (2018).
- 10. . House dust mite allergy under changing environments. Allergy Asthma Immunol. Res. 11(4), 450–469 (2019).
- 11. Double-blind comparative study of cluster and conventional immunotherapy schedules with Dermatophagoides pteronyssinus. J. Allergy Clin. Immunol. 116(1), 109–118 (2005).
- 12. Comparative study on cluster and conventional immunotherapy with Dermatophagoides pteronyssinus in patients with allergic rhinitis. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 46(12), 981–985 (2011).
- 13. . Phase II/III clinical trial to assess the tolerability and immunological effect of a new updosing phase of Dermatophagoides mix-based immunotherapy. J. Investig. Allergol. Clin. Immunol. 25(1), 40–46 (2015).
- 14. Immunologic alterations and efficacy of subcutaneous immunotherapy with Dermatophagoides pteronyssinus in monosensitized and polysensitized patients. Ann. Allergy Asthma Immunol. 116(3), 244–251 (2016).
- 15. . Efficacy and safety of house dust mite subcutaneous immunotherapy in polysensitized children with allergic asthma. Pulm. Pharmacol. Ther. 78, 102187 (2023).
- 16. . Long-term effects of allergen-specific subcutaneous immunotherapy for house dust mite induced allergic rhinitis. J. Laryngol. Otol. 131(11), 997–1001 (2017).
- 17. . Long-term effects of allergen-specific subcutaneous immunotherapy for house dust mite induced allergic rhinitis. J. Laryngol. Otol. 132(7), 665 (2018).
- 18. Functional and immunoreactive levels of IgG4 correlate with clinical responses during the maintenance phase of house dust mite immunotherapy. J. Immunol. 200(12), 3897–3904 (2018).
- 19. . SCIT with a high-dose house dust mite allergoid is well tolerated: safety data from pooled clinical trials and more than 10 years of daily practice analyzed in different subgroups. Allergo J. Int. 27(5), 131–139 (2018).
- 20. . Comparison of long-term efficacy of subcutaneous immunotherapy in pediatric and adult patients with allergic rhinitis. Allergy Asthma Immunol. Res. 11(1), 68–78 (2019).
- 21. Molecular profiling of allergen-specific antibody responses may enhance success of specific immunotherapy. J. Allergy Clin. Immunol. 146(5), 1097–1108 (2020).
- 22. . Real-world evidence of subcutaneous allergoid immunotherapy in house dust mite-induced allergic rhinitis and asthma. Allergy 75(8), 2050–2058 (2020).
- 23. . Improving the safety of immunotherapy. J. Allergy Clin. Immunol. Pract. 2(2), 131–135 (2014).
- 24. . Immunotherapy as an effective tool in allergy treatment. Allergy 53(5), 461–472 (1998).
- 25. . Accelerated immunotherapy schedules and premedication. Immunol. Allergy Clin. North Am. 31(2), 251–263 (2011).
- 26. . Accelerated/rush allergen immunotherapy. Allergy Asthma Proc. 43(4), 344–349 (2022). • Accelerated allergy shot schedules for inhalant and venom allergens provide individuals with allergy symptom relief but in a shorter time frame than conventional therapy.
- 27. . Ultrarush schedule of subcutaneous immunotherapy with modified allergen extracts is safe in paediatric age. Asia Pac. Allergy 6(1), 35–42 (2016).
- 28. . Standards for practical allergen-specific immunotherapy. Allergy 61 (Suppl. 82), 1–20 (2006).
- 29. . Safety of allergen immunotherapy: a review of premedication and dose adjustment. Immunotherapy 4(3), 315–322 (2012).
- 30. Allergen immunotherapy: a practice parameter third update. J. Allergy Clin. Immunol. 127(Suppl. 1), S1–S55 (2011).
- 31. . Dose adjustment practices among allergists for local reactions to immunotherapy. Ann. Allergy Asthma Immunol. 99(1), 77–81 (2007).
- 32. . The GILL study: glycerin-induced local reactions in immunotherapy. J. Allergy Clin. Immunol. 121(1), 222–226 (2008).
- 33. . World Allergy Organization systemic allergic reaction grading system: is a modification needed? J. Allergy Clin. Immunol. Pract. 5(1), 58–62 (2017).
- 34. Mechanisms, safety and efficacy of a B cell epitope-based vaccine for immunotherapy of grass pollen allergy. EBioMedicine 11, 43–57 (2016).
- 35. . Oral desensitization to milk: how to choose the starting dose!. Pediatr. Allergy Immunol. 21(2 Pt 2), e450–e453 (2010).
- 36. . Comparative study of novel dosing schedules for interrupted immunotherapy for allergic rhinitis. Clin. Transl. Allergy 12(4), e12147 (2022). •• An initial dose of 10,000 standard quality units was equally effective and safe for delayed subcutaneous immunotherapy of more than 16 weeks for AR, with the advantage of saving time and reduced dropout rate.
- 37. . Double-blind, placebo-controlled study with a modified therapeutic vaccine of Salsola kali (Russian thistle) administered through use of a cluster schedule. J. Allergy Clin. Immunol. 117(4), 810–816 (2006).
- 38. . Subcutaneous allergen immunotherapy for allergic disease: examining efficacy, safety and cost–effectiveness of current and novel formulations. Immunotherapy 4(6), 601–616 (2012).
- 39. . Management practice of allergic rhinitis in China during the COVID-19 pandemic. Allergy Asthma Immunol. Res. 12(4), 738–742 (2020).
- 40. . Allergen immunotherapy: therapeutic vaccines for allergic diseases. A WHO position paper. J. Allergy Clin. Immunol. 102(4 Pt 1), 558–562 (1998).
- 41. . Determinants of patient compliance with allergen immunotherapy. J. Allergy Clin. Immunol. 91(3), 734–737 (1993).
- 42. . The need for standardizing the aeroallergen immunotherapy missed-dose adjustment protocol. Allergy Asthma Proc. 29(4), 425–426 (2008).
- 43. . Premedication reduces the incidence of systemic reactions during inhalant rush immunotherapy with mixtures of allergenic extracts. Ann. Allergy 73(5), 409–418 (1994).
- 44. . Comparison of systemic reactions in rush, cluster, and standard-build aeroallergen immunotherapy. Ann. Allergy Asthma Immunol. 117(5), 542–545 (2016). • Compared with previously published rates, Winslow et al. observed a decrease in the incidence of SR for standard, cluster and rush immunotherapy, with peak seasonality from May to October and a female predominance.
- 45. Dose dependence and time course of the immunologic response to administration of standardized cat allergen extract. J. Allergy Clin. Immunol. 114(6), 1339–1344 (2004).
- 46. Grass pollen immunotherapy: IL-10 induction and suppression of late responses precedes IgG4 inhibitory antibody activity. J. Allergy Clin. Immunol. 121(5), 1120–1125 (2008).
- 47. Systemic tolerability of specific subcutaneous immunotherapy with index-of-reactivity-standardized allergen extracts administered using clustered regimens: a retrospective, observational, multicenter study. Ann. Allergy Asthma Immunol. 102(3), 247–252 (2009).
- 48. . Comparative study of cluster and conventional immunotherapy schedules with Dermatophagoides pteronyssinus in the treatment of persistent allergic rhinitis. Int. Arch. Allergy Immunol. 148(2), 161–169 (2009).
- 49. . Antihistamine premedication in specific cluster immunotherapy: a double-blind, placebo-controlled study. J. Allergy Clin. Immunol. 97(6), 1207–1213 (1996).
- 50. Clinical evaluation of rush immunotherapy using house dust mite allergen in Japanese asthmatics. Asia Pac. Allergy 11(3), e32 (2021).
- 51. . Allergen-specific immunotherapy in birch- and grass-pollen-allergic rhinitis. II. Side-effects. Allergy 55(9), 827–835 (2000).
- 52. . Safety of allergen-specific immunotherapy. Relation between dosage regimen, allergen extract, disease and systemic side-effects during induction treatment. Clin. Exp. Allergy 30(10), 1423–1429 (2000).
- 53. . Adverse effects and fatalities associated with subcutaneous allergen immunotherapy. Clin. Allergy Immunol. 21, 455–468 (2008).
- 54. . Risk factors for fatal and nonfatal reactions to subcutaneous immunotherapy: national surveillance study on allergen immunotherapy (2008–2013). Ann. Allergy Asthma Immunol. 116(4), 354–359 (2016).
- 55. . Minimising the risks of allergen-specific injection immunotherapy. Drug Saf. 23(4), 323–332 (2000).
- 56. . Allergen immunotherapy: therapeutic vaccines for allergic diseases. Allergy 53(Suppl. 44), 1–42 (1998).
- 57. . Immunotherapy with a standardized Dermatophagoides pteronyssinus extract. IV. Systemic reactions according to the immunotherapy schedule. J. Allergy Clin. Immunol. 85(2), 473–479 (1990).
- 58. . Incidence and characteristics of biphasic reactions after allergen immunotherapy. J. Allergy Clin. Immunol. 123(2), 493–498 (2009).