Property talk:P8064

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Chinese Clinical Trial Registry ID
identifier for the clinical trials registry in China

Applicable "stated in" value	Chinese Clinical Trial Registry (Q88374053)
Data type	External identifier
Domain	clinical trial (Q30612)
Allowed values	ChiCTR\d+
Example	A randomized, controlled open-label trial to evaluate the efficacy and safety of lopinavir-ritonavir in hospitalized patients with novel coronavirus pneumonia (COVID-19) (Q88374607) → ChiCTR2000029308 A prospective comparative study for Xue-Bi-Jing injection in the treatment of novel coronavirus pneumonia (COVID-19) (Q88454081) → ChiCTR2000029381
Source	http://www.chictr.org/
Formatter URL	http://www.chictr.org.cn/searchprojen.aspx?btngo=btn&regno=$1
Related to country	People's Republic of China (Q148) (See 127 others)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Database reports/Constraint violations/P8064 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 4 Main statement 2 50% of uses Qualifier 2 50% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Type “clinical trial (Q30612)”: item must contain property “instance of (P31)” with classes “clinical trial (Q30612)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8064#Type Q30612, SPARQL

Format “ChiCTR\d+”: value must be formatted using this pattern (PCRE syntax). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8064#Format, SPARQL

Distinct values: this property likely contains a value that is different from all other items. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8064#Unique value, SPARQL (every item), SPARQL (by value)

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8064#Entity types

Scope is as main value (Q54828448), as reference (Q54828450): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P8064#Scope, SPARQL