What are the disclosed terms of the BioNTech and DualityBio ADC licensing deal?

For the two-asset partnership announced on April 3, 2023, DualityBio disclosed US$170 million upfront, more than US$1.5 billion in potential milestones and single-digit to double-digit tiered royalties. [1]

That agreement covered DB-1303 and DB-1311, with BioNTech holding commercial rights outside Mainland China, Hong Kong and Macau. [1]

BioNTech’s 2023 annual report subsequently included the August DB-1305 agreement and reported US$220 million in combined Duality upfront payments. [1]

Dated evidence

ClaimValueAs ofSource and original quotation
April 2023 upfrontUSD 170,000,000 for DB-1303 and DB-1311 together2023-04-03Primary source
$170 million
April 2023 potential milestonesOver USD 1,500,000,0002023-04-03Primary source
over $1.5 billion
April 2023 royalty rangeSingle-digit to double-digit tiered royalties2023-04-03Primary source
single-digit to double-digit
Assets and territoryDB-1303 and DB-1311; BioNTech rights outside Mainland China, Hong Kong and Macau2023-04-03Primary source
DB-1303 and DB-1311
2023 combined upfront after third ADCUSD 220,000,000; includes DB-1305 agreement signed in August 20232023-12-31Primary source
$220.0 million

Not disclosed in the public documents

The checked public announcements and annual report do not disclose the exact royalty percentages at every tier or allocate all upfront amounts by individual asset. Document reviewed 2026-10-22

tiered royalties