Bristol Myers Squibb posted much better-than-expected second-quarter results on Thursday on strong sales of its best-selling brands, but failed to convince investors that newer products could drive future growth and shares fell nearly 5%.

Bristol Myers Squibb trimmed its full-year adjusted earnings view as it reported lower second-quarter earnings due to a charge related to its BioNTech partnership.

Cobenfy is one of the key products Bristol is counting on to take up the slack as patents on three of its top-selling drugs expire in the coming years.