A CRO like IQVIA often has several projects for different sponsors being conducted simultaneously. Knowing your goals and any changes you expect in your life will allow the interviewer to evaluate if you are interested in having a long-term relationship with their company. If so, be sure to express this. With that said, they'll want to know of any life changes and how they might place you in positions that won't disrupt your plans. With a CRO, if you expect a move or other significant change, they may still offer you employment but within a project that fits your time frame. Either way, be honest with the interviewer. That will be beneficial to both you and IQVIA.