Skip to main content
Log in

Allergen Immunotherapy Clinical Trial Outcomes and Design: Working Toward Harmonization of Methods and Principles

  • Immunotherapy and Immunomodulators (B Vickery, Section Editor)
  • Published:
Current Allergy and Asthma Reports Aims and scope Submit manuscript

Abstract

Progress has been made in the harmonization of efficacy and safety outcome measures for allergen immunotherapy (AIT) trials, but unresolved issues still remain. Furthermore, there are discrepancies in recommendations from professional medical societies and regulatory agencies regarding requirements for AIT trials. In this article, we reviewed published recommendations and current data from recent clinical trials, as well as the criteria applied by regulatory authorities for approval of AIT products, to provide updated considerations for conducting phase 3 AIT trials. Topics discussed include analysis of outcomes and trial designs for pediatric and asthma indications, as well as trial designs for perennial allergic rhinoconjunctivitis. In addition, the need for harmonization of safety reporting is emphasized. Considerations presented in this article may further effort to find common ground among professional medical societies and government agencies in developing future recommendations for AIT trial design.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance

  1. Casale TB, Canonica GW, Bousquet J, Cox L, Lockey R, Nelson HS, et al. Recommendations for appropriate sublingual immunotherapy clinical trials. J Allergy Clin Immunol. 2009;124(4):665–70. doi:10.1016/j.jaci.2009.07.054.

    Article  PubMed  Google Scholar 

  2. Guideline on the clinical development of products for specific immunotherapy for the treatment of allergic diseases. CHMP/EWP/18504. London, UK: European Medicines Agency 2008.

  3. Bousquet J, Schunemann HJ, Bousquet PJ, Bachert C, Canonica GW, Casale TB, et al. How to design and evaluate randomized controlled trials in immunotherapy for allergic rhinitis: an ARIA-GA(2) LEN statement. Allergy. 2011;66(6):765–74. doi:10.1111/j.1398-9995.2011.02590.x.

    Article  CAS  PubMed  Google Scholar 

  4. Canonica GW, Baena-Cagnani CE, Bousquet J, Bousquet PJ, Lockey RF, Malling HJ, et al. Recommendations for standardization of clinical trials with allergen specific immunotherapy for respiratory allergy. A statement of a World Allergy Organization (WAO) taskforce. Allergy. 2007;62(3):317–24.

    Article  CAS  PubMed  Google Scholar 

  5. Calderon MA, Bernstein DI, Blaiss M, Andersen JS, Nolte H. A comparative analysis of symptom and medication scoring methods used in clinical trials of sublingual immunotherapy for seasonal allergic rhinitis. Clin Exp Allergy. 2014;44(10):1228–39. doi:10.1111/cea.12331.

    Article  CAS  PubMed  Google Scholar 

  6. • Pfaar O, Demoly P, Gerth van Wijk R, Bonini S, Bousquet J, Canonica GW, et al. Recommendations for the standardization of clinical outcomes used in allergen immunotherapy trials for allergic rhinoconjunctivitis: an EAACI Position Paper. Allergy. 2014;69(7):854–67. doi:10.1111/all.12383. Describes the advantages and disadvantages of commonly used AIT clinical trial outcomes, and provides consensus recommendations for the definitions and scoring of outcomes

    Article  CAS  PubMed  Google Scholar 

  7. Pfaar O, Kleine-Tebbe J, Hormann K, Klimek L. Allergen-specific immunotherapy: which outcome measures are useful in monitoring clinical trials? Immunol Allergy Clin N Am. 2011;31(2):289–309. x doi:10.1016/j.iac.2011.02.004.

    Article  CAS  Google Scholar 

  8. Rosner-Friese K, Kaul S, Vieths S, Pfaar O. Environmental exposure chambers in allergen immunotherapy trials: current status and clinical validation needs. J Allergy Clin Immunol. 2015;135(3):636–43. doi:10.1016/j.jaci.2014.10.045.

    Article  PubMed  Google Scholar 

  9. Devillier P, Chassany O, Vicaut E, de Beaumont O, Robin B, Dreyfus JF, et al. The minimally important difference in the rhinoconjunctivitis total symptom score in grass-pollen-induced allergic rhinoconjunctivitis. Allergy. 2014;69(12):1689–95. doi:10.1111/all.12518.

    Article  CAS  PubMed  Google Scholar 

  10. Massie T. Statistical criteria for establishing safety and efficacy of allergenic products. Allergenics Products Advisory Committee, U.S. Food and Drug Administration. 2011. http://www.fda.gov/AdvisoryCommittees/CommitteesMeetingMaterials/BloodVaccinesandOtherBiologics/AllergenicProductsAdvisoryCommittee/ucm263446.htm.

  11. • Durham SR, Nelson HS, Nolte H, Bernstein DI, Creticos PS, Li Z, et al. Magnitude of efficacy measurements in grass allergy immunotherapy trials is highly dependent on pollen exposure. Allergy. 2014;69(5):617–23. doi:10.1111/all.12373. Provides evidence that pollen exposure can influence AIT efficacy measurements, which should be considered when interpreting AIT clinical trial outcomes

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  12. Maloney J, Bernstein D, Nelson H, Creticos P, Hebert J, Noonan M, et al. Efficacy and safety of grass sublingual immunotherapy tablet, MK-7243: a large randomized controlled trial. Ann Allergy Asthma Immunol. 2014;112:146–53.e2.

    Article  CAS  PubMed  Google Scholar 

  13. Creticos P, Esch R, Couroux P, Gentile D, D'Angelo P, Whitlow B, et al. Randomized, double-blind, placebo-controlled trial of standardized ragweed sublingual-liquid immunotherapy for allergic rhinoconjunctivitis. J Allergy Clin Immunol. 2013;133(3):751–8.

    Article  PubMed  Google Scholar 

  14. Cox LS, Casale TB, Nayak AS, Bernstein DI, Creticos PS, Ambroisine L, et al. Clinical efficacy of 300IR 5-grass pollen sublingual tablet in a US study: the importance of allergen-specific serum IgE. J Allergy Clin Immunol. 2012;130(6):1327–34.

    Article  CAS  PubMed  Google Scholar 

  15. Canonica GW, Cox L, Pawankar R, Baena-Cagnani CE, Blaiss M, Bonini S, et al. Sublingual immunotherapy: World Allergy Organization position paper 2013 update. The World Allergy Organization journal. 2014;7(1):6. doi:10.1186/1939-4551-7-6.

    Article  PubMed  PubMed Central  Google Scholar 

  16. Creticos PS, Maloney J, Bernstein DI, Casale T, Kaur A, Fisher R, et al. Randomized controlled trial of a ragweed allergy immunotherapy tablet in North American and European adults. J Allergy Clin Immunol. 2013;131(5):1342–9. e6 doi:10.1016/j.jaci.2013.03.019.

    Article  CAS  PubMed  Google Scholar 

  17. Pfaar O, Urry Z, Robinson DS, Sager A, Richards D, Hawrylowicz CM, et al. A randomized placebo-controlled trial of rush preseasonal depigmented polymerized grass pollen immunotherapy. Allergy. 2012;67(2):272–9. doi:10.1111/j.1398-9995.2011.02736.x.

    Article  CAS  PubMed  Google Scholar 

  18. Nelson HS, Nolte H, Creticos P, Maloney J, Wu J, Bernstein DI. Efficacy and safety of timothy grass allergy immunotherapy tablet treatment in North American adults. J Allergy Clin Immunol. 2011;127(1):72–80. e2

    Article  CAS  PubMed  Google Scholar 

  19. Guidance for industry: allergic rhinitis: clinical development programs for drug products. Rockville, MD: Food and Drug Administration 2000.

  20. Pfaar O, Gerth van Wijk R. Mite-allergic rhinitis: how to evaluate clinical efficacy in allergen-specific immunotherapy trials? Curr Treat Options Allergy. 2015;2(1):1–9. doi:10.1007/s40521-014-0040-y.

  21. Demoly P, Emminger W, Rehm D, Backer V, Tommerup L, Kleine-Tebbe J. Effective treatment of house dust mite-induced allergic rhinitis with 2 doses of the SQ HDM SLIT-tablet: results from a randomized double-blind, placebo-controlled phase III trial. J Allergy Clin Immunol. 2016;137(2):444–51.

    Article  CAS  PubMed  Google Scholar 

  22. Nolte H, Bernstein DI, Nelson HS, Kleine-Tebbe J, Sussman GL, Seitzberg D, et al. Efficacy of house dust mite SLIT-tablet in North American adolescents and adults in a randomized, placebo-controlled trial. J Allergy Clin Immunol. 2016;138(6):1631–8.

    Article  PubMed  Google Scholar 

  23. Durham SR, Creticos PS, Nelson HS, Li Z, Kaur A, Meltzer EO, et al. Treatment effect of sublingual immunotherapy tablets and pharmacotherapies for seasonal and perennial allergic rhinitis: pooled analyses. J Allergy Clin Immunol. 2016;138(4):1081–8.

    Article  CAS  PubMed  Google Scholar 

  24. Statistical principles for clinical trials: E9. International Conference on Harmonisation. 1998. http://www.ich.org/products/guidelines/efficacy/article/efficacy-guidelines.html. Accessed 09 March 2017.

  25. United States code, 2006 Edition, Supplement 4, Title 21 - Food and Drugs. US. Government 2010.

  26. Regulation (EC) No 1901/2006 on medicinal products for paediatric use.: European Parliament and the Council of the European Union 2006.

  27. Dretzke J, Meadows A, Novielli N, Huissoon A, Fry-Smith A, Meads C. Subcutaneous and sublingual immunotherapy for seasonal allergic rhinitis: a systematic review and indirect comparison. J Allergy Clin Immunol. 2013;131(5):1361–6. doi:10.1016/j.jaci.2013.02.013.

    Article  PubMed  Google Scholar 

  28. Larenas-Linnemann D, Blaiss M, Van Bever HP, Compalati E, Baena-Cagnani CE. Pediatric sublingual immunotherapy efficacy: evidence analysis, 2009–2012. Ann Allergy Asthma Immunol. 2013;110(6):402–15. e9 doi:10.1016/j.anai.2013.02.017.

    Article  PubMed  Google Scholar 

  29. Blaiss M, Maloney J, Nolte H, Gawchik S, Yao R, Skoner DP. Efficacy and safety of timothy grass allergy immunotherapy tablets in North American children and adolescents. J Allergy Clin Immunol. 2011;127(1):64–71. e4

    Article  CAS  PubMed  Google Scholar 

  30. Bufe A, Eberle P, Tholstrup B, Henmar H, Durham SR. Clinical efficacy and immunological response in children is similar to that of adults after the first treatment season with SQ-standardized grass allergy immunotherapy tablet in two randomized trials. Allergologie. 2013;36(5):238–45.

    Article  Google Scholar 

  31. Lai X, Li J, Xiao X, Liu E, Zhang C, Wang H, et al. Specific IgG4 production during house dust mite immunotherapy among age, gender and allergic disease populations. Int Arch Allergy Immunol. 2013;160(1):37–46. doi:10.1159/000339239.

    Article  CAS  PubMed  Google Scholar 

  32. Jacobsen L, Wahn U, Bilo MB. Allergen-specific immunotherapy provides immediate, long-term and preventive clinical effects in children and adults: the effects of immunotherapy can be categorised by level of benefit -the centenary of allergen specific subcutaneous immunotherapy. Clin Transl Allergy. 2012;2:8.

  33. Akdis CA, Blesken T, Akdis M, Wuthrich B, Blaser K. Role of interleukin 10 in specific immunotherapy. J Clin Invest. 1998;102(1):98–106. doi:10.1172/JCI2250.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  34. Francis JN, Till SJ, Durham SR. Induction of IL-10+CD4+CD25+ T cells by grass pollen immunotherapy. J Allergy Clin Immunol. 2003;111(6):1255–61.

    Article  CAS  PubMed  Google Scholar 

  35. Jutel M, Akdis M, Budak F, Aebischer-Casaulta C, Wrzyszcz M, Blaser K, et al. IL-10 and TGF-beta cooperate in the regulatory T cell response to mucosal allergens in normal immunity and specific immunotherapy. Eur J Immunol. 2003;33(5):1205–14. doi:10.1002/eji.200322919.

    Article  CAS  PubMed  Google Scholar 

  36. Klossek JM, Annesi-Maesano I, Pribil C, Didier A. The burden associated with ocular symptoms in allergic rhinitis. Int Arch Allergy Immunol. 2012;158(4):411–7. doi:10.1159/000334286.

    Article  CAS  PubMed  Google Scholar 

  37. Bergmann KC, Demoly P, Worm M, Fokkens WJ, Carrillo T, Tabar AI, et al. Efficacy and safety of sublingual tablets of house dust mite allergen extracts in adults with allergic rhinitis. J Allergy Clin Immunol. 2014;133(6):1608–14.e6. doi:10.1016/j.jaci.2013.11.012.

    Article  CAS  PubMed  Google Scholar 

  38. Chang H, Han DH, Mo JH, Kim JW, Kim DY, Lee CH, et al. Early compliance and efficacy of sublingual immunotherapy in patients with allergic rhinitis for house dust mites. Clin Exp Otorhinolaryngol. 2009;2(3):136–40. doi:10.3342/ceo.2009.2.3.136.

  39. Busse WW, Morgan WJ, Taggart V, Togias A. Asthma outcomes workshop: overview. J Allergy Clin Immunol. 2012;129(3 Suppl):S1–8. doi:10.1016/j.jaci.2011.12.985.

    Article  PubMed  PubMed Central  Google Scholar 

  40. Reddel HK, Taylor DR, Bateman ED, Boulet LP, Boushey HA, Busse WW, et al. An official American Thoracic Society/European Respiratory Society statement: asthma control and exacerbations: standardizing endpoints for clinical asthma trials and clinical practice. Am J Respir Crit Care Med. 2009;180(1):59–99. doi:10.1164/rccm.200801-060ST.

    Article  PubMed  Google Scholar 

  41. Cappella A, Durham SR. Allergen immunotherapy for allergic respiratory diseases. Human vaccines & immunotherapeutics. 2012;8(10):1499–512. doi:10.4161/hv.21629.

    Article  CAS  Google Scholar 

  42. Virchow JC, Backer V, Kuna P, Prieto L, Nolte H, Villesen HH, et al. Efficacy of a house dust mite sublingual allergen immunotherapy tablet in adults with allergic asthma: a randomized clinical trial. JAMA. 2016;315(16):1715–25. doi:10.1001/jama.2016.3964.

    Article  CAS  PubMed  Google Scholar 

  43. Bernstein DI, Epstein T. Systemic reactions to subcutaneous allergen immunotherapy. Immunol Allergy Clin N Am. 2011;31(2):241–9. viii-ix doi:10.1016/j.iac.2011.02.007.

    Article  Google Scholar 

  44. Calderon MA, Simons FE, Malling HJ, Lockey RF, Moingeon P, Demoly P. Sublingual allergen immunotherapy: mode of action and its relationship with the safety profile. Allergy. 2012;67(3):302–11. doi:10.1111/j.1398-9995.2011.02761.x.

    Article  CAS  PubMed  Google Scholar 

  45. Maloney J, Durham S, Skoner D, Dahl R, Bufe A, Bernstein DI et al. Safety of sublingual immunotherapy Timothy grass tablet in subjects with allergic rhinitis with or without conjunctivitis and history of asthma. Allergy. 2015;70(3):302-9.

  46. Ragwitek. Short ragweed pollen allergen extract tablet for sublingual use. Whitehouse Station, NJ, USA: Merck Sharp & Dohme Corp.; 2014.

  47. Grastek. Timothy grass pollen allergen extract tablet for sublingual use. Whitehouse Station, NJ, USA: Merck Sharp & Dohme Corp.; 2014.

  48. Oralair. Sweet vernal, Orchard, Perennial Rye, Timothy, and Kentucky Blue Grass mixed pollens allergen extract tablet for sublingual use. Antony, France: Stallergenes S.A.; 2014.

  49. •• Cox L, Larenas-Linnemann D, Lockey RF, Passalacqua G. Speaking the same language: the World Allergy Organization Subcutaneous Immunotherapy Systemic Reaction Grading System. J Allergy Clin Immunol. 2010;125(3):569–74. 74 e1-74 e7 doi:10.1016/j.jaci.2009.10.060. Provides the first standardized definition of a systemic allergic reaction in response to allergy immunotherapy

  50. •• Passalacqua G, Baena-Cagnani CE, Bousquet J, Canonica GW, Casale TB, Cox L, et al. Grading local side effects of sublingual immunotherapy for respiratory allergy: speaking the same language. J Allergy Clin Immunol. 2013;132(1):93–8. doi:10.1016/j.jaci.2013.03.039. Provides the first proposed system for grading the severity of local adverse events associated with SLIT

    Article  PubMed  Google Scholar 

  51. •• Cox LS, Sanchez-Borges M, Lockey RF. World Allergy Organization Systemic Allergic Reaction Grading System: is a modification needed? J Allergy Clin Immunol: In Practice. 2017;5(1):58–62.e5. doi:10.1016/j.jaip.2016.11.009. Provides an update on the definition of systemic allergic reactions for allergy immunotherapy clarifying that local AEs and gastrointestinal symptoms associated with SLIT should be not be considered evidence of a systemic allergic reaction unless other systemic manifestations also occur

  52. Structure and content of clinical study reports: E3. International Conference on Harmonisation. 1995. http://www.ich.org/products/guidelines/efficacy/efficacy-single/article/structure-and-content-of-clinical-study-reports.html. Accessed 09 March 2017.

  53. Nolte H, Casale TB, Lockey RF, Fogh BS, Kaur A, Lu S, et al. Epinephrine use in clinical trials of sublingual immunotherapy tablets. J Allergy Clin Immunol: In Practice. 2017;5(1):84–9.

    Article  Google Scholar 

  54. Wernicke JF, Faries D, Milton D, Weyrauch K. Detecting treatment emergent adverse events in clinical trials: a comparison of spontaneously reported and solicited collection methods. Drug Saf. 2005;28(11):1057–63.

    Article  PubMed  Google Scholar 

  55. Portnoy JM, Van Osdol T, Williams PB. Evidence-based strategies for treatment of allergic rhinitis. Curr Allergy Asthma Rep. 2004;4(6):439–46.

    Article  PubMed  Google Scholar 

  56. Malling HJ. Immunotherapy as an effective tool in allergy treatment. Allergy. 1998;53(5):461–72.

    Article  CAS  PubMed  Google Scholar 

  57. Malling HJ. Sublingual immunotherapy: efficacy—methodology and outcome of clinical trials. Allergy. 2006;61(Suppl 81):24–8. doi:10.1111/j.1398-9995.2006.01158.x.

    Article  PubMed  Google Scholar 

Download references

Acknowledgments

Medical writing and editorial assistance were provided by Erin P. Scott, PhD, of Scott Medical Communications, LLC. This assistance was funded by Merck & Co., Inc., Kenilworth, NJ, USA.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Harold S. Nelson.

Ethics declarations

Funding

The editorial support for this manuscript was provided by Merck & Co., Inc., Kenilworth, NJ, USA. The final decision to submit this article for publication was made by the authors.

Conflict of Interest

H.S. Nelson has received consulting fees from Merck & Co., Inc., Kenilworth, NJ, USA. M.A. Calderon has served as a consultant and/or speaker for ALK, Stallergenes Greer, Merck, Hal Allergy, and Allergopharma. D.I. Bernstein has received consulting fees from Merck & Co., Inc., Kenilworth, NJ, USA, received grant support from Merck & Co., Inc., Kenilworth, NJ, USA, Circassia, and Stallergenes Greer, and received lecture fees from Merck & Co., Inc., Kenilworth, NJ, USA. T.B. Casale has been an investigator on grants to his university employer from Merck, Stallergenes Greer, and Circassia, and served on advisory boards for Circassia and Stallergenes Greer. S.R. Durham reports grants from Immune Tolerance Network NIAID USA, Food Standards Agency UK, Regeneron USA, Biotech Tools UK, and ALK, has received consultancy fees from Anergis Switzerland, Circassia UK, Biomay Austria, Merck USA, Allergy Therapeutics UK, Glaxo Smith Kline and Boehringer Ingelheim, and received lecture fees from Allergy Therapeutics and ALK. L.S. Cox has received personal fees from MedImmune and Novartis for the adjudication committee and from Circassia and Biotech for the Safety Data Monitoring Committee, and received consultation fees from ASIT Biotech SA. J.S. Andersen and H. Nolte are employees of ALK. R. Esch is a consultant with Stallergenes-Greer.

Human and Animal Rights and Informed Consent

This article does not contain any studies with human or animal subjects performed by any of the authors.

Additional information

This article is part of the Topical Collection on Immunotherapy and Immunomodulators

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Nelson, H.S., Calderon, M.A., Bernstein, D.I. et al. Allergen Immunotherapy Clinical Trial Outcomes and Design: Working Toward Harmonization of Methods and Principles. Curr Allergy Asthma Rep 17, 18 (2017). https://doi.org/10.1007/s11882-017-0687-0

Download citation

  • Published:

  • DOI: https://doi.org/10.1007/s11882-017-0687-0

Keywords

Navigation