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• Request
• Response

V1.0

put

/ec-dc-svc/rest/v1.0/studies/{studyId}/{mode}/subjects/{subjectId}/undoSubject

Reverts the addition of the specified subject. May be used in case of errors or if enrollment was performed mistakenly. Returns the updated subject state after revert.

Request

Path Parameters

• mode(required): string
  Indicates the operational mode of the study. Accepted values: active, test, or training.

  Example:

  test

• studyId(required): string
  Unique identifier of the study. Uses UUID in a 32-character uppercase hexadecimal string format.

  Example:

  3F2504E04F8911D39A0C0305E82C3301

• subjectId(required): string
  Unique identifier of the subject. Used to represent a participant enrolled in a study. Uses UUID in a 32-character uppercase hexadecimal string format.

  Example:

  1BC29B36F5D64B1B95F4BDBBCEA481BE

Supported Media Types

• application/json

Request Body - application/json ()

Root Schema : schema

Type: object

Request payload to revert/delete a subject, providing justification and details for auditing

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• comment: string
  Minimum Length: 0

  Maximum Length: 2048

  Additional comments or context for the operation (max 2048 chars)

  Example: Subject was mistakenly created twice and needs removal
• reason: string
  Minimum Length: 0

  Maximum Length: 255

  The reason for reverting or deleting the subject (max 255 chars)

  Example: Duplicate entry detected

{
    "type":"object",
    "properties":{
        "reason":{
            "maxLength":255,
            "minLength":0,
            "type":"string",
            "description":"The reason for reverting or deleting the subject (max 255 chars)",
            "example":"Duplicate entry detected"
        },
        "comment":{
            "maxLength":2048,
            "minLength":0,
            "type":"string",
            "description":"Additional comments or context for the operation (max 2048 chars)",
            "example":"Subject was mistakenly created twice and needs removal"
        }
    },
    "description":"Request payload to revert/delete a subject, providing justification and details for auditing"
}

Examples

Select an example Request to Revert Subject

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Response

Supported Media Types

• application/json

200 Response

Subject successfully reverted.

Body ()

Root Schema : SubjectDto1

Type: object

Base subject details including identity, demographics, study and site context, and state transitions

Show Source

• comment: string
  Minimum Length: 0

  Maximum Length: 2048

  Comment for latest subject update

  Example: Initial enrollment
• description: string
  Minimum Length: 0

  Maximum Length: 500

  Free text description for the subject

  Example: Screened subject
• dob: string (date-time)
  Date of birth
• enrollmentFailure: string
  Minimum Length: 0

  Maximum Length: 255

  Reason for enrollment failure, if any

  Example: Consent withdrawn
• enrollmentOverride: string
  Minimum Length: 0

  Maximum Length: 255

  If subject enrollment is overridden.

  Example: Subject Enrollment Overridden
• gender: string
  Minimum Length: 0

  Maximum Length: 10

  Gender value

  Example: [{"value":"1","label":"male"}]
• id: string
  Unique identifier (UUID, 32-character uppercase hexadecimal string) of the subject

  Example: 1BC29B36F5D64B1B95F4BDBBCEA481BE
• informedConsentDate: string (date-time)
  Informed consent date

  Example: 2025-09-25T09:00:00Z
• reason: string
  Minimum Length: 0

  Maximum Length: 255

  Reason for latest subject update

  Example: Protocol break happened
• screeningDate: string (date-time)
  Screening date if applicable

  Example: 2025-10-01T10:00:00Z
• screeningFailure: string
  Minimum Length: 0

  Maximum Length: 255

  Reason for screening failure, if any

  Example: Inclusion criteria not met
• siteId: string
  Unique identifier of the site. Uses UUID in a 32-character uppercase hexadecimal string format.

  Example: ABCDEF1234567890ABCDEF1234567890
• state(required): string
  Minimum Length: 0

  Maximum Length: 100

  Lifecycle state of the subject in the study. Reflects the subject???s current status. Common values include:

  • New
  • Active
  • Screening_Initiated
  • Screen_Failed
  • Withdrawn
  • Auto_Screen_Failed
  • Complete
  • Enrolled

  Example: Active
• stateDate: string (date-time)
  Timestamp when the subject transitioned to current state

  Example: 2025-10-16T14:30:31.892Z
• studyId: string
  Unique identifier of the study. Uses UUID in a 32-character uppercase hexadecimal string format.

  Example: ABCDEF1234567890ABCDEF1234567890
• studyVersion(required): string
  String representing the version of the study. Helps track changes in form or study design.

  Example: 3.0.0.1
• subjectNumber(required): string
  Minimum Length: 0

  Maximum Length: 500

  Unique subject Number representing the patient/participant enrolled in the study.

  Example: SUBJ-0001
• versionStart: string (date-time)
  The timestamp marking the beginning of the validity period for this record version within the system.

  Example: 2025-10-16T14:30:31.892Z

{
    "required":[
        "state",
        "studyVersion",
        "subjectNumber"
    ],
    "type":"object",
    "properties":{
        "screeningDate":{
            "type":"string",
            "description":"Screening date if applicable",
            "format":"date-time",
            "example":"2025-10-01T10:00:00Z"
        },
        "id":{
            "type":"string",
            "description":"Unique identifier (UUID, 32-character uppercase hexadecimal string) of the subject",
            "example":"1BC29B36F5D64B1B95F4BDBBCEA481BE"
        },
        "versionStart":{
            "type":"string",
            "description":"The timestamp marking the beginning of the validity period for this record version within the system.",
            "format":"date-time",
            "example":"2025-10-16T14:30:31.892Z"
        },
        "description":{
            "maxLength":500,
            "minLength":0,
            "type":"string",
            "description":"Free text description for the subject",
            "example":"Screened subject"
        },
        "subjectNumber":{
            "maxLength":500,
            "minLength":0,
            "type":"string",
            "description":"Unique subject Number representing the patient/participant enrolled in the study.",
            "example":"SUBJ-0001"
        },
        "studyId":{
            "type":"string",
            "description":"Unique identifier of the study. Uses UUID in a 32-character uppercase hexadecimal string format.",
            "example":"ABCDEF1234567890ABCDEF1234567890"
        },
        "siteId":{
            "type":"string",
            "description":"Unique identifier of the site. Uses UUID in a 32-character uppercase hexadecimal string format.",
            "example":"ABCDEF1234567890ABCDEF1234567890"
        },
        "dob":{
            "type":"string",
            "description":"Date of birth",
            "format":"date-time"
        },
        "state":{
            "maxLength":100,
            "minLength":0,
            "type":"string",
            "description":"Lifecycle state of the subject in the study.  Reflects the subject???s current status. Common values include: <ul><li>New</li><li>Active</li><li>Screening_Initiated</li><li>Screen_Failed</li><li>Withdrawn</li><li>Auto_Screen_Failed</li><li>Complete</li><li>Enrolled</li></ul>",
            "example":"Active"
        },
        "stateDate":{
            "type":"string",
            "description":"Timestamp when the subject transitioned to current state",
            "format":"date-time",
            "example":"2025-10-16T14:30:31.892Z"
        },
        "screeningFailure":{
            "maxLength":255,
            "minLength":0,
            "type":"string",
            "description":"Reason for screening failure, if any",
            "example":"Inclusion criteria not met"
        },
        "enrollmentFailure":{
            "maxLength":255,
            "minLength":0,
            "type":"string",
            "description":"Reason for enrollment failure, if any",
            "example":"Consent withdrawn"
        },
        "enrollmentOverride":{
            "maxLength":255,
            "minLength":0,
            "type":"string",
            "description":"If subject enrollment is overridden.",
            "example":"Subject Enrollment Overridden"
        },
        "informedConsentDate":{
            "type":"string",
            "description":"Informed consent date",
            "format":"date-time",
            "example":"2025-09-25T09:00:00Z"
        },
        "gender":{
            "maxLength":10,
            "minLength":0,
            "type":"string",
            "description":"Gender value",
            "example":"[{\"value\":\"1\",\"label\":\"male\"}]"
        },
        "reason":{
            "maxLength":255,
            "minLength":0,
            "type":"string",
            "description":"Reason for latest subject update",
            "example":"Protocol break happened"
        },
        "comment":{
            "maxLength":2048,
            "minLength":0,
            "type":"string",
            "description":"Comment for latest subject update",
            "example":"Initial enrollment"
        },
        "studyVersion":{
            "type":"string",
            "description":"String representing the version of the study. Helps track changes in form or study design.",
            "example":"3.0.0.1"
        }
    },
    "description":"Base subject details including identity, demographics, study and site context, and state transitions"
}

Examples

Select an example Undo Subject Reponse

400 Response

400

Body ()

Root Schema : RestResponse

Type: object

Show Source

• errorData: object ErrorResponseData
• result: object result
• status: string
• version: integer (int32)

{
    "type":"object",
    "properties":{
        "status":{
            "type":"string"
        },
        "result":{
            "type":"object"
        },
        "version":{
            "type":"integer",
            "format":"int32",
            "writeOnly":true
        },
        "errorData":{
            "$ref":"#/components/schemas/ErrorResponseData"
        }
    }
}

Nested Schema : ErrorResponseData

Type: object

Show Source

• details: object details
• errorCode: string
• errorMessage: string

{
    "type":"object",
    "properties":{
        "errorCode":{
            "type":"string"
        },
        "errorMessage":{
            "type":"string"
        },
        "details":{
            "type":"object"
        }
    }
}

Nested Schema : result

Type: object

Nested Schema : details

Type: object

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