Regression of Infancy Hemangiomas with Recombinant IFN-α2b
2001
Interferon-α (IFN-α) has antitumor and antiangiogenic effects. The purpose of this work was to evaluate its efficacy and safety in the treatment of infancy hemangioma and to monitor the appearance of anti-IFN antibodies in these patients. Thirty-nine children (29 girls) aged 1.5-158 months, with 19 younger than 1 year and 9 older than 5, were treated with 3 × 106 IU/m2 IFN-α2b, subcutaneously (s.c.) daily. Inclusion criteria were life-threatening or life-limiting hemangioma and parents' informed consent. Regression was considered if tumor size diminished by 50% or more. Of the 38 patients who completed 6 months of treatment, 27 (71.1%) had regression and 11 (28.9%) had stable disease. No patient experienced progression. Regression was more frequent (100%) among patients between 1 and 5 years old, but it was particularly important (68%) among those under 1 year old, when spontaneous regression is rare. The main side effects were the IFN-related flulike syndrome (79%), increase in serum alanine aminotransfe...
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