Trial Data Project

Steps Followed to Extract the Trial Data

Extracting Data from XML Files

All the historical USPTO data is available as XML files. Here is the tree structure for the XML files:

-<clinical_study rank="61205">
    +<required_header>
    +<id_info>
    <brief_title>
    +<sponsors>
    <source>
    +<oversight_info>
    +<brief_summary>
    +<detailed_description>
    <overall_status>Completed</overall_status>
    <phase>Phase 1/Phase 2</phase>
    <study_type>
    <study_design>
    <condition>
    +<intervention>
    +<eligibility>
    +<location>
    +<location_countries>
    <verification_date>
    <lastchanged_date>
    <firstreceived_date>
    <has_expanded_access>
    +<condition_browse>
    +<intervention_browse>

Corresponding tables are:

• Study
• Location
• Sponsors
• Eligibility
• Dates
• MeSH (Medical Subject Headings)

MeSH

The corresponding nodes are:

-<condition_browse>
    <mesh_term>Hyperplasia</mesh_term>
    <mesh_term>Adrenal Hyperplasia, Congenital</mesh_term>
    <mesh_term>Adrenogenital Syndrome</mesh_term>
    <mesh_term>Adrenocortical Hyperfunction</mesh_term>
</condition_browse>
-<intervention_browse>
    <mesh_term>Nifedipine</mesh_term>
</intervention_browse>