<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0101</schemaVersion>

    <submissionType>EFFECT</submissionType>

    <act>33</act>

    <testOrLive>LIVE</testOrLive>

    <effectiveData>
        <finalEffectivenessDispDate>2011-04-14</finalEffectivenessDispDate>
        <accessionNumber>0001193125-11-096668</accessionNumber>
        <submissionType>POS AM</submissionType>
        <filer>
            <cik>0000716646</cik>
            <entityName>CLINICAL DATA INC</entityName>
            <fileNumber>333-155693</fileNumber>
        </filer>
    </effectiveData>
</edgarSubmission>
