Holding back its wet age-related macular degeneration (AMD) program from the potential $1 billion deal with Biogen Inc. will let Applied Genetic Technologies Corp. (AGTC) reap more value in a collaboration later, as the firm deploys "a better understanding of vector design [that] has come about in the last five to seven years," which allows for "really being able to target the capsid, the promoter, the physical delivery method," CEO Sue Washer told BioWorld Today.