The study was an interventional single center double-blinded human randomized trial with two groups treated parallel.The first group received an intramuscular injection of Methylprednisolone 40 mg/ml 2ml x 1 as a single dose. The second group received an intramuscular injection of NaCl 0,9 mg/ml 2ml x 1 as a single dose. Symptom score and the use of medication was registered daily during the pollen peak of the season, using an electronic diary. The study was conducted during the spring of 2019.
This study evaluates the effect of intramuscular injected methylprednisolone treating birch pollen induced rhinitis compared to placebo.