Gracias Vicente y Sandra T!; ya encontré el significado y efectivamente Go/NoGo decisions tiene que ver con continuar algo o no . Esto estaba dentro de un contexto médico sobre nuevas vacunas. Esta es la frase:
With several vaccine candidates entering the field, criteria
for educated Go/NoGo decisions gain increasing importance.
Once safety of vaccine candidates has been verified
in phase I clinical trials, immunologic parameters become
a critical part of this decision process.