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The service uses XML for data exchange.All XML elements going in or out of the service are defined and validated against the following XML schemas:

XML schemas are well-annotated with inline documentation that explains the purpose and meaning of various elements, types, and attributes. These schemas specify which elements are required and the required order of those elements. Specific elements required for service operations are explained in the sections below.

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Tip
titleUse PO Web Services API

We strongly recommend that you exercise PO Web Services API separately in order to find persons and organizations of interest prior to registering a trial. For instructions, refer to Person and Organization Service. Once you find a person or organization, you can use their IDs within a trial registration packet as shown in API examples below. This helps to minimize duplicates in the CTRP system.

 


API Specification

Register an Abbreviated Trial

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HTTP MethodPOST
URL

/trials/abbreviated/{nct}

Parameters

{nct}. ClinicalTrials.gov Trial Identifier

Request BodyEmpty
Response BodyXML document with
TrialRegistrationConfirmation
 

MIME Type: application/xml
HTTP Response Code

200. Success

400. Validation error

401. Invalid username/password or insufficient permissions to access the service.

412. A study with the given identifier already exists in CTRP.

500. Error: Duplicate Trial Submission: A trial exists in the system with the same Lead Organization Trial Identifier for the selected Lead Organization

Examples

URL: https://trials.nci.nih.gov/services/trials/abbreviated/NCT02208700

Response:

Code Block
languagehtml/xml
collapsetrue
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<TrialRegistrationConfirmation xmlns="gov.nih.nci.pa.webservices.types"
    xmlns:ns2="gov.nih.nci.po.webservices.types.trimmed">
    <paTrialID>137908558</paTrialID>
    <nciTrialID>NCI-2014-00496</nciTrialID>
</TrialRegistrationConfirmation>

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