v3.26.1
Cover Page
 12 Months Ended
Dec. 31, 2025
shares
Document Information [Line Items]  
Document Type 20-F/A
Document Registration Statement false
Document Annual Report true
Document Period End Date Dec. 31, 2025
Current Fiscal Year End Date --12-31
Document Fiscal Year Focus 2025
Document Transition Report false
Document Shell Company Report false
Entity File Number 001-39173
Entity Registrant Name NovaBridge Biosciences
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One 2440 Research Boulevard, Suite 400
Entity Address, City or Town Rockville
Entity Address, State or Province MD
Entity Address, Postal Zip Code 20850
Entity Address, Country US
Entity Common Stock, Shares Outstanding 265,377,891
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 false
ICFR Auditor Attestation Flag true
Document Financial Statement Error Correction [Flag] false
Document Accounting Standard U.S. GAAP
Entity Shell Company false
Entity Central Index Key 0001778016
Document Fiscal Period Focus FY
Amendment Flag true
Amendment Description This Amendment No. 1 (“Amendment No. 1”) to our annual report on Form 20-F for the fiscal year ended December 31,2025 originally filed with the U.S. Securities and Exchange Commission on April 7, 2026 (the “Original Filing”) is being filed for the sole purpose of correcting certain inadvertent errors in previously reported beneficial ownership information. The corrected information does not affect the Company’s audited financial statements filed with the Original Filing.In addition, pursuant to Rule 12b-15 under the Securities Exchange Act of 1934, as amended, the certifications pursuant to Section 302 and Section 906 of the Sarbanes-Oxley Act of 2002 have been re-executed as of the date of, and are re-filed as part of, this Amendment No. 1 as Exhibits 12.1 and 12.2.Other than expressly set forth herein, this Amendment No. 1 does not, and does not purport to, amend or restate any other information contained in the Original Filing nor does this Amendment No. 1 reflect any events that have occurred after the Original Filing was filed.
Business Contact [Member]  
Document Information [Line Items]  
Entity Address, Address Line One 2440 Research Boulevard, Suite 400
Entity Address, City or Town Rockville
Entity Address, State or Province MD
Entity Address, Postal Zip Code 20850
Entity Address, Country US
City Area Code (240
Local Phone Number 745-6330
Contact Personnel Name Kyler Lei
Common Stock [Member]  
Document Information [Line Items]  
Title of 12(b) Security Ordinary shares, par value $0.0001 per share
No Trading Symbol Flag true
Security Exchange Name NASDAQ
ADR [Member]  
Document Information [Line Items]  
Title of 12(b) Security American depositary shares, each ten(10) American depositary shares representing twenty-three (23) ordinary shares
Trading Symbol NBP
Security Exchange Name NASDAQ