BioNTech

BNT327 (pumitamig)

In Development

BioNTech's flagship oncology asset: a next-generation bispecific antibody targeting both PD-L1 and VEGF-A, gained via the Biotheus acquisition and positioned as a potential immuno-oncology backbone across many solid tumors. Co-developed with Bristol Myers Squibb.

Latest update Sep 15, 2026

01

Current status

Seven pivotal trials in the ROSETTA program under way (five initiated in H1 2026 alone) across small-cell and non-small-cell lung cancer, triple-negative breast, gastric and colorectal cancers. More than 1,000 patients treated to date; ASCO 2026 data marked the third global dataset consistently showing efficacy across PD-L1 expression levels, with registrational first-line lung-cancer readouts still expected in 2026. At WCLC 2026 (September 12), first pumitamig plus elfetabart drozuntecan combo data showed a 70.4% ORR and 93.0% DCR in 71 evaluable SCLC patients.

02

Specifications2

Target
PD-L1 × VEGF-A bispecific
Deal Value
Up to ~$11.1B (BMS, 50/50 split)

03

Upcoming milestones2

Announced next steps from BioNTech that mention BNT327 (pumitamig).

  1. 2026-2027

    BNT327 first-line lung-cancer Phase 3 readouts

    Report registrational Phase 3 data for BNT327 (pumitamig) in first-line lung cancer - the key catalyst for its central immuno-oncology bet with Bristol Myers Squibb. The pivotal ROSETTA program (7 trials, 5 initiated in H1 2026) spans ROSETTA Lung-01 (1L extensive-stage small-cell lung cancer), ROSETTA Lung-02 (1L non-small-cell lung cancer), ROSETTA Lung-201 (unresectable stage III NSCLC vs durvalumab) and ROSETTA Lung-202 (1L PD-L1>=50% NSCLC vs pembrolizumab). As of the August 2026 Q2 update, ASCO 2026 data marked a third consistent global dataset showing efficacy across PD-L1 levels, but the registrational Phase 3 portions remain recruiting with no pivotal readout yet. BioNTech now runs 16 lung-cancer trials companywide (5 pivotal Phase 3 plus 2 novel-novel combination studies). WCLC 2026 (Seoul, September 12-15) delivered first pumitamig plus elfetabart drozuntecan combo data (70.4% ORR in SCLC) and the first median OS for gotistobart in PRESERVE-003 stage 1.

  2. 2030

    Become a multi-product oncology company by 2030

    Scale BNT327 across its seven-plus pivotal indications and broaden the now-14-trial pivotal pipeline (spanning trastuzumab pamirtecan, elfetabart drozuntecan and gotistobart) while deploying the ~€16.6B cash reserve and cutting COVID-era manufacturing costs, targeting multiple approved cancer products by the end of the decade. Markets rewarded the pivot on August 19, 2026, when the stock jumped ~23% as investors refocused on the oncology pipeline. WCLC 2026 combo and gotistobart data are the latest visibility points; no oncology product is approved yet.

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