Health care stocks were higher Friday afternoon, with the NYSE Health Care Index rising 1.5% and the Health Care Select Sector SPDR Fund (XLV) climbing 1.6%.
The iShares Biotechnology ETF (IBB) added 1.3%.
In corporate news, Johnson & Johnson (JNJ) received approval from the UK's Medicines and Healthcare products Regulatory Agency for guselkumab to treat Crohn's disease and ulcerative colitis. The shares rose 1%.
Novo Nordisk (NVO) stock fell 3% after the Danish drugmaker said Chief Executive Officer Lars Fruergaard Jorgensen agreed to step down amid market challenges and share price declines.
BioMarin Pharmaceutical (BMRN) agreed to buy Inozyme Pharma (INZY) for $270 million. Inozyme shares more than doubled, and BioMarin rose 1.9%.