a!queryEntity(
  entity: CONS!GCO_TRIAL_INSIGHT_ENTITY,
  query: a!query(
    selection: a!querySelection(
      columns: {
        a!queryColumn(
          field: "TrialName"
        )
      }
    ),
    filter: a!queryFilter(
      field: "Trial_Id",
      operator: "=",
      value: 8
    ),
    pagingInfo: a!pagingInfo(
      startIndex: 1,
      batchSize: 1
    )
  )
)

=======================================================================================
with(
local!entity: a!queryEntity(
  entity: CONS!GCO_TRIAL_INSIGHT_ENTITY,
  query: a!query(
    selection: a!querySelection(
      columns: {
        a!queryColumn(
          field: "TrialName"
        )
      }
    ),
    filter: a!queryFilter(
      field: "Trial_Id",
      operator: "=",
      value: 8
    ),
    pagingInfo: a!pagingInfo(
      startIndex: 1,
      batchSize: 1
    )
  )
),
local!data: index(local!entity,"data",{}),
local!text:index(local!data,"TrialName",null),
if(rule!APN_isEmpty(local!text),null,local!text[1])
)