REST API for Clinical One Platform

Get list of subjects based on search input

get

/ec-dc-svc/rest/v8.0/studies/{studyId}/{mode}/subjects/sitestudyversion

Retrieves a list of subjects and also searches for subjects based on input parameters. This API request returns mHealthSubjectId as part of the response body for the sites having a study version. Also filters subject based on site and state. The supported parameters are 'readyToSign', 'readyToVerify', 'signed', 'verified', 'freezed' and 'signedandverified'.

Request

Path Parameters

mode(required): string

Mode of the study. Accepts test, active, or training.
studyId(required): string

ID of the study for which you want to get the list of subjects.

Query Parameters

containsSearchKeyword(required): array[string]

List of search words containing the subject number.
exactSearchKeyword(required): array[string]

List of search words matching exactly the subject number.
limit(required): integer(int32)

Minimum Value: 0

Number of subjects.
offset(required): integer(int32)

Minimum Value: 0

Starting offset.
order(required): string

asc or desc
reviewStatus(required): string

Review Status of the subject like sign, verify, open queries etc.
signVerifyStatus(required): string

Status of Sign / Verify.
siteId(required): array[string]

Sites for which you want to retrieve subjects.
subjectState(required): array[string]

Subject states for filtering

There's no request body for this operation.

Response

Supported Media Types

application/json

200 Response

Success

Root Schema : schema

Type: array

Show Source

Array of: object SubjectDto6

Subject sign, verify and freeze status fields added on top of previous subject versions

{
    "type":"array",
    "items":{
        "$ref":"#/components/schemas/SubjectDto6"
    }
}

Nested Schema : SubjectDto6

Type: object

Subject sign, verify and freeze status fields added on top of previous subject versions

Show Source

codeBreak: string

Code break note if applicable

Example: N
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Example: Consent withdrawn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

Enrollment override note if applied

Example: Subject Enrollment Overridden
eventType: string

Type of event associated with the subject

Example: Screened
freezedStatus: string

Freeze status of the subject

Example: FROZEN
fromStudyId: string (uuid)

Origin study identifier from which the subject was transferred
gender: string

Minimum Length: 0

Maximum Length: 10

Gender value

Example: [{"value":"1","label":"male"}]
id: string (uuid)

Unique identifier of the subject
informedConsentDate: string (date-time)

Informed consent date

Example: 2025-09-25T09:00:00Z
lastSigned: string (date-time)

Timestamp when the subject was last signed

Example: 2025-10-16T14:30:31.892Z
mhealthSubjectId: string (uuid)

Identifier of the subject in mHealth system
objectVersionNumber: number

Object version number used for concurrency control

Example: 14
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
signedStatus: string

Signed status of the subject

Example: SIGNED
siteId: string

Site identifier in uppercase hex format

Example: ABCDEF1234567890ABCDEF1234567890
state(required): string

Minimum Length: 0

Maximum Length: 100

Lifecycle state of the subject

Example: ACTIVE
stateDate: string (date-time)

Timestamp when the subject transitioned to current state

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

Study identifier in uppercase hex format

Example: ABCDEF1234567890ABCDEF1234567890
studyVersion(required): string

Study version string

Example: 3.0.0.1
subjectNumber(required): string

Minimum Length: 0

Maximum Length: 500

Human readable subject number

Example: SUBJ-0001
subjectTransferId: string (uuid)

Identifier of a subject transfer if applicable
subjNumSiteOrgId: string

Subject number site organization identifier

Example: SITE-ORG-0001
userId: string (uuid)

User identifier associated with the subject modification
verifiedStatus: string

Verified status of the subject

Example: VERIFIED
versionStart: string (date-time)

Start timestamp of the subject version

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"
        },
        "codeBreak":{
            "type":"string",
            "description":"Code break note if applicable",
            "example":"N"
        },
        "userId":{
            "type":"string",
            "description":"User identifier associated with the subject modification",
            "format":"uuid"
        },
        "eventType":{
            "type":"string",
            "description":"Type of event associated with the subject",
            "example":"Screened"
        },
        "subjectTransferId":{
            "type":"string",
            "description":"Identifier of a subject transfer if applicable",
            "format":"uuid"
        },
        "objectVersionNumber":{
            "type":"number",
            "description":"Object version number used for concurrency control",
            "example":14
        },
        "mhealthSubjectId":{
            "type":"string",
            "description":"Identifier of the subject in mHealth system",
            "format":"uuid"
        },
        "fromStudyId":{
            "type":"string",
            "description":"Origin study identifier from which the subject was transferred",
            "format":"uuid"
        },
        "subjNumSiteOrgId":{
            "type":"string",
            "description":"Subject number site organization identifier",
            "example":"SITE-ORG-0001"
        },
        "signedStatus":{
            "type":"string",
            "description":"Signed status of the subject",
            "example":"SIGNED"
        },
        "verifiedStatus":{
            "type":"string",
            "description":"Verified status of the subject",
            "example":"VERIFIED"
        },
        "freezedStatus":{
            "type":"string",
            "description":"Freeze status of the subject",
            "example":"FROZEN"
        },
        "lastSigned":{
            "type":"string",
            "description":"Timestamp when the subject was last signed",
            "format":"date-time",
            "example":"2025-10-16T14:30:31.892Z"
        },
        "id":{
            "type":"string",
            "description":"Unique identifier of the subject",
            "format":"uuid"
        },
        "versionStart":{
            "type":"string",
            "description":"Start timestamp of the subject version",
            "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":"Human readable subject number",
            "example":"SUBJ-0001"
        },
        "studyId":{
            "type":"string",
            "description":"Study identifier in uppercase hex format",
            "example":"ABCDEF1234567890ABCDEF1234567890"
        },
        "siteId":{
            "type":"string",
            "description":"Site identifier in uppercase hex 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",
            "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":"Enrollment override note if applied",
            "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":"Study version string",
            "example":"3.0.0.1"
        }
    },
    "description":"Subject sign, verify and freeze status fields added on top of previous subject versions"
}

400 Response

Bad request.

Root Schema : DcsResponse

Type: object

Show Source

errorData: object ErrorResponseData

Structure representing an error response from the reporting service. Contains an error code, human-readable message, and details.
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

Structure representing an error response from the reporting service. Contains an error code, human-readable message, and details.

Show Source

details: string

Detailed error context or debugging information such as validation error, stack trace, or field/parameter cause.

Example: User role is missing required permission REPORTING_VIEW. Field: userId
errorCode: string

Application or business-specific error code representing the error type.

Example: REPT_401
errorMessage: string

Human-readable error message describing the failure or issue.

Example: Unauthorized: User does not have access to the requested resource

{
    "type":"object",
    "properties":{
        "errorCode":{
            "type":"string",
            "description":"Application or business-specific error code representing the error type.",
            "example":"REPT_401"
        },
        "errorMessage":{
            "type":"string",
            "description":"Human-readable error message describing the failure or issue.",
            "example":"Unauthorized: User does not have access to the requested resource"
        },
        "details":{
            "type":"string",
            "description":"Detailed error context or debugging information such as validation error, stack trace, or field/parameter cause.",
            "example":"User role is missing required permission REPORTING_VIEW. Field: userId"
        }
    },
    "description":"Structure representing an error response from the reporting service. Contains an error code, human-readable message, and details."
}

Nested Schema : result

Type: object