Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

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12 Months Ended
Dec. 31, 2021
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Document Information [Line Items]  
Document Type 20-F/A
Amendment Flag true
Amendment Description This Amendment on Form 20-F/A (the "Amendment") amends the Annual Report on Form 20-F of XORTX Therapeutics Inc. ("XORTX" or the "Company") for the year ended December 31, 2021, as filed with the Securities and Exchange Commission on May 3, 2022 (the "Original Form 20-F"). This Amendment is being filed solely for the purpose of including disclosure that the Company inadvertently omitted from Item 5 of the Original Form 20-F relating to Use of Proceeds of the US IPO Financing (as defined in Item 5), a breakdown of R&D expenditures, a comparative analysis of the 12 months ended December 31, 2021, and disclosure of related party names. This Amendment does not reflect events occurring after the filing of the Original Form 20-F and does not modify or update the disclosure therein in any way other than as required to reflect the amendments described herein and reflected below. No other changes have been made to the Original Form 20-F. The filing of this Amendment should not be understood to mean that any statements contained herein are true or complete as of any date subsequent to the date of the original filing of the Original Annual Report. Accordingly, this Amendment should be read in conjunction with our filings made with the Securities and Exchange Commission subsequent to the filing of the Original Form 20-F.
Document Registration Statement false
Document Annual Report true
Document Transition Report false
Document Shell Company Report false
Document Period End Date Dec. 31, 2021
Document Fiscal Period Focus FY
Document Fiscal Year Focus 2021
Current Fiscal Year End Date --12-31
Entity File Number 001-40858
Entity Registrant Name XORTX Therapeutics Inc.
Entity Central Index Key 0001729214
Entity Incorporation, State or Country Code A1
Entity Address, Address Line One 3710 – 33rd Street
Entity Address, Address Line Two NW Calgary
Entity Address, City or Town Alberta
Entity Address, Country CA
Entity Address, Postal Zip Code T2L 2M1
Title of 12(b) Security Common Shares
Trading Symbol XRTX 
Security Exchange Name NASDAQ
Entity Well-known Seasoned Issuer No
Entity Voluntary Filers No
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Non-accelerated Filer
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period true
Document Accounting Standard International Financial Reporting Standards
Entity Shell Company false
Entity Bankruptcy Proceedings, Reporting Current false
Entity Common Stock, Shares Outstanding 12,989,678
Auditor Name Smythe LLP
Auditor Location Vancouver, Canada
Auditor Firm ID 995
Business Contact [Member]  
Document Information [Line Items]  
Entity Address, Address Line One 3710 – 33rd Street
Entity Address, Address Line Two NW Calgary
Entity Address, City or Town Alberta
Entity Address, Country CA
Entity Address, Postal Zip Code T2L 2M1
City Area Code 403
Local Phone Number 455-7727
Contact Personnel Name Amar Keshri
Contact Personnel Email Address akeshri@xortx.com