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Ropeg outperforms HU in PV patients of all ages

Dr Kiladjian also pointed out that the number of adverse drug reactions (ADRs) was comparable between the treatment arms for younger patients, and there was a trend toward a lower number of ADRs in the ropeg arm for the patients age 60 and older.

Safety results at a mean of 2.7 years of treatment (up to 3.6 years)
Ropeg HU
<60 (n=49) ≥60 (n=46) <60 (n=39) ≥60 (n=37)
Patients with any AE 44 (89.8%) 43 (93.5%) 36 (92.3%) 34 (91.1%)
Serious AE 3 (6.1%) 10 (21.7%) 4 (10.3%) 9 (24.3%)
ADR 38 (77.6%) 29 (63%) 29 (74.4%) 33 (89.2%)
Serious ADR 0 0 0 4 (10.8%)
Grade 3+ AE 10 (20.4%) 16 (34.8%) 10 (25.6%) 14 (37.8%)
Recovered from AE 43 (87.8%) 40 (87%) 35 (89.7%) 34 (91.9%)

The 4 serious ADRs in the HU patients age 60 and older were acute leukemia, anemia, leukopenia, and granulocytopenia.