Study Stopped
halted prematurely
Sponsor study identifier
observational
5,000
1 country
1
Study Start
December 4, 2017
Actual (reported)Primary Completion
September 1, 2021
Actual (reported)Study Completion
December 1, 2021
Actual (reported)In this prospective study, we used Multiplex ligation-dependent probe amplification and next-generation sequencing technology to detect AZF microdeletion types accurately in selected genetic locus, and made correlation analysis with clinical treatment results.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
December 1, 2021
Actual (reported)Click on a node to explore related trials.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
December 4, 2017
Actual (reported)March 13, 2018
Actual (reported)April 13, 2018
Actual (reported)September 1, 2021
Actual (reported)December 1, 2021
Actual (reported)frequency of mirodeletion
The propotion of azoospermia patients with AZF mirodeletion
through study completion, an average of 1 year
Male patients diagnosed with azoospermia and severe oligozoospermia.
Reproductive & Genetic Hospital of CITIC-XIANGYA
Changsha, Hunan, 410000, China
Blood is collected in the morning from each patient and then stored at -20℃. Blood specimen is sent to the Lab in Jabrehoo for DNA extraction.
Yueqiu Tan
Reproductive & Genetic Hospital of CITIC-Xiangya
5,000 participants (actual enrollment reported by the registry).
First Submitted
March 13, 2018
First Posted
April 13, 2018
Study Start
December 4, 2017
Actual (reported)Contact the study team to confirm eligibility.
Primary Completion
September 1, 2021
Actual (reported)Study Completion
December 1, 2021
Actual (reported)Last Updated
January 26, 2022
Record last verified: 2021-02
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Source: ClinicalTrials.gov.
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