Pharma BD Deal Intelligence

Astellas Pharma Inc. / Audentes Therapeutics

2019 · Acquisition/Merger · $3.0B · Complete

WRONG BY 52 POINTS
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Ranks computed across 828 graded deals (Critic + Outcome Score both present).

The coverage arc

Mar 25, 2006 Wikipedia Neutral

Astellas acquired Audentes Therapeutics for ~$3B for gene therapy.

Dec 04, 2019 C&EN Bullish

Astellas to acquire gene therapy firm Audentes for $3 billion, adding a fifth Primary Focus Area in Genetic Regulation and positioning itself as a global…

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Astellas acquired Audentes Therapeutics for ~$3B for gene therapy.

Key facts

Disease & market context

Pompe Disease

200 US cases/yr · $2.0B Global Pompe Disease Market (2024)

Disease Overview

Pompe disease is a rare lysosomal storage disorder caused by GAA enzyme deficiency, leading to progressive muscle weakness. Standard of care is enzyme replacement therapy (ERT: Lumizyme/Myozyme by Sanofi, Nexviazyme by Amicus). Gene therapy aims to provide endogenous GAA production.

Gene Therapy Landscape

Astellas/Audentes AT845 is an AAV gene therapy for Pompe. Competitors: Asklepios (AAV), Sarepta (AAV), Spark/Roche (preclinical). The challenge is achieving sufficient GAA expression in skeletal muscle, heart, and diaphragm. ERT remains standard but requires lifelong biweekly infusions, creating strong rationale for gene therapy.

X-Linked Myotubular Myopathy

40 US cases/yr · $100M Estimated Market Opportunity

Disease Overview

X-linked myotubular myopathy (XLMTM) is an ultra-rare neuromuscular disorder affecting ~1 in 50,000 male births. Most affected boys require ventilatory support; ~25% die in the first year. AT132 (resamirigene bilparvovec) was placed on clinical hold after patient deaths from hepatotoxicity.

Safety Concerns

AT132 was a promising AAV8 gene therapy for XLMTM but patient deaths from hepatotoxicity in boys with pre-existing liver disease led to clinical holds and regulatory scrutiny. This highlighted safety risks of high-dose systemic AAV gene therapy, particularly in patients with hepatobiliary disease. Astellas paid ~$3B for Audentes based on this program.

Deal timeline

Related deals — scored

DealYearValueOutcome
Astellas Pharma Inc. / Audentes Therapeutics (this deal)2019$3.0B23
Astellas Pharma Inc. / Seagen Inc.2009$4.5B95
Astellas Pharma Inc. / Ganymed Pharmaceuticals2016$1.4B81
Astellas Pharma Inc. / Sangamo Therapeutics, Inc.2026$50M63
Astellas Pharma Inc. / Ogeda SA2017$850M59
Astellas Pharma Inc. / Ocata Therapeutics, Inc.2015$379M41
Astellas Pharma Inc. / Optimer Pharmaceuticals, Inc.2012$90M38

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