Default OpenSpecimen field values or custom dropdown field values can be configured per CP. The fields can be a dropdown, radio button, multi-select.

Use case: A study is dedicated to the participants of cancer relapse. The Principal Investigator (PI) wants users to add participants for only clinical status values - "Relapse, Distant Site", "Relapse, Not Specified" and "Relapse, Primary Site".

Add the below code in the dictionary section.

clinical_status

{
  "name": "visit.clinicalStatus",
  "caption": "Clinical Status",
  "type": "dropdown",
  "optional": false,
  "defaultValue": "Not Specified",
  "showIf": {
    "op": "AND",
    "rules": [
      {
        "field": "visit.status",
        "op": "!=",
        "value": "'Missed Collection'"
      }
    ]
  },
  "listSource": {
    "options": [
    "Relapse, Distant Site",
    "Relapse, Primary Site",
    "Relapse, Not Specified"
    ]
  }
}

Example JSON

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