Pharma BD Deal Intelligence

Bayer AG / BlueRock Therapeutics LP

2019 · Acquisition/Merger · $600M · Complete

Outcome grade pending — assessed 5 years post-close.

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The coverage arc

Aug 08, 2019 FierceBiotech Bullish

Bayer paid $240M upfront plus up to $360M milestones to consolidate full ownership of BlueRock; the deal extends Bayer's cell-therapy thesis from the Versant…

Aug 18, 2019 The Science of Parkinson's Bullish

iPSC-derived neurons solve the variability problems that plagued earlier fetal-tissue transplantation; the Bayer deal 'signals major pharmaceutical confidence…

Jan 22, 2026 BlueRock Therapeutics Bullish

FDA grants Orphan Drug Designation to OpCT-001 for retinitis pigmentosa (Jan 22, 2026); OpCT-001 also holds FDA Fast Track (Feb 2025).

Source summaries from our enrichment pipeline; follow links for originals.

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Bayer acquired the remaining ~59.2% of BlueRock Therapeutics it did not already own for $240M upfront plus up to $360M in milestones (~$600M total); the deal closed August 13, 2019. BlueRock's iPSC-derived cell-therapy platform engineers replacement cells for disease. As of 2026 the platform has materially advanced: lead asset bemdaneprocel (BRT-DA01), iPSC-derived dopaminergic neurons for Parkinson's disease, began the registrational Phase III exPDite-2 trial (~102 patients, randomized double-blind sham-surgery-controlled) with the first patient treated in September 2025, and holds FDA Fast Track (2021), RMAT (2024) and Japan SAKIGAKE (Dec 2025) designations. A second asset, OpCT-001, an iPSC-derived photoreceptor cell therapy for primary photoreceptor disease (retinitis pigmentosa), entered a Phase 1/2a trial (first patient July 2025) and received FDA Orphan Drug Designation (Jan 2026), extending the platform from neurology into ophthalmology.

Did it work? Outcome assessment

Strategic verdict
Too Early
Financial impact
Neutral
Pipeline outcome
Assets Advanced

Key facts

Related deals — scored

DealYearValueOutcome
Bayer AG / BlueRock Therapeutics LP (this deal)2019$600M
Bayer AG / Schering AG2006$21.5B79
Bayer AG / BlueRock Therapeutics2002$600M79
Bayer AG / Merck & Co., Inc.2014$14.2B71
Bayer AG / Schering AG (residual squeeze-out)2007$985M69
Bayer AG / Arvinas, Inc.2019$1.0B59
Bayer AG / Merck & Co. Inc.2014$14.2B56

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