Get all those cases stored in clinical trials endpoint according to the term introduced

Database: 
Statement: 
Get all those cases stored in clinical trials endpoint according to the term introduced $term$ (e.g. oocytes)
A limit of results per page $number$ (e.g. 12)
Query: 
select ?description where{ ?s<http://www.w3.org/1999/02/22-rdf-syntax-ns#type><http://bio2rdf.org/clinicaltrials_vocabulary:Case> . ?s<http://bio2rdf.org/clinicaltrials_vocabulary:description>?description . FILTER REGEX(?description, "??term", "i") } limit ??number