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45 lines
812 B
SQL
45 lines
812 B
SQL
SELECT why_stopped FROM ctgov.studies
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WHERE why_stopped IS NOT NULL
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LIMIT 100;
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SELECT study_type, count(*) from ctgov.studies
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group by study_type;
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SELECT is_fda_regulated_drug, count(*) from ctgov.studies
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GROUP BY is_fda_regulated_drug;
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/*
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Note that there is a decent number of trials that have expanded access
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*/
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SELECT
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study_type
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, phase
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, has_expanded_access
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, has_dmc
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, count(*)
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FROM ctgov.studies
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WHERE
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is_fda_regulated_drug is true
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AND
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study_type = 'Interventional'
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AND
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start_date > date('2007-01-01')
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group by study_type, phase, has_expanded_access, has_dmc;
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/*
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Find different mesh terms as assigned by clinicaltrials.gov
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*/
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select * from ctgov.browse_conditions
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order by nct_id desc,mesh_type
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limit 200;
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select * from ctgov.browse_interventions
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order by nct_id desc
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limit 200;
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