Results from the fifth year of a long-term clinical study verify the disease modifying effect of GRAZAX®. For the first time ever, it is documented that the positive clinical effect of the tablet is sustained two years after completion of treatment. Today, ALK announces positive top-line results from the second and final follow-up year in a long-term study (GT-08) with GRAZAX®, the company's grass allergy immunotherapy tablet. The results verify that the disease-modifying effect of GRAZAX® is sustained after completion of the recommended three-year treatment regimen. Two years after completed treatment, GRAZAX® reduced hay fever symptoms with the same magnitude as in the previous year of the clinical study. The significant reduction in hay fever symptoms was accompanied by less use of symptomatic medications and consequently, a significant reduction in combined symptom and medication score was obtained. Furthermore, the immunological assessment continues to show a sustained, positive effect on the immune system indicating a lasting tolerance to grass pollen. The positive results were obtained despite a markedly lower grass pollen exposure during 2009 compared to the previous pollen seasons in 2005-08. In 2009, authorities in Europe approved GRAZAX® as a disease modifying allergy treatment. The approval was based on the results of the first follow-up year in the GT-08 study and the latest findings therefore reinforce the scientific and clinical rationale of the product. GRAZAX® is the only registered tablet treatment against grass pollen allergy with documented sustained effect after completion of treatment. ALK-Abelló A/S Jens Bager For further information please contact: Jens Bager, President and CEO, tel. +45 4574 7576 Investor Relations: Per Plotnikof, tel +45 4574 7527, mobile +45 2261 2525 Press: Martin Barlebo, tlf. + 45 4574 7901, mobile + 45 2064 1143