Pharma BD Deal Intelligence

AstraZeneca PLC / Omthera Pharmaceuticals Inc.

2013 · Acquisition/Merger · $443M · Complete

AstraZeneca's $443M bet on Epanova ended in total loss—a $533M full impairment and US market withdrawal after the omega-3 drug's own cardiovascular outcomes trial failed in 2020. Epanova never gained share against rival Vascepa, and the writedown exceeded the entire acquisition value.

CALLED IT — OFF BY 9

AstraZeneca's $443M bet on Epanova ended in a $533M full impairment and US market withdrawal after the drug's own cardiovascular outcomes trial failed in 2020 — a near-total loss.

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The coverage arc

May 06, 2014 Outsourced Pharma Bullish

Epanova won FDA approval as the first free-fatty-acid omega-3, validating Omthera's CMC differentiation thesis and AstraZeneca's NDA-ready acquisition…

Jan 15, 2020 New Atlas Bearish

Independent coverage framed STRENGTH's failure as a major setback that called into question the broader omega-3 CV class — diverging sharply from the positive…

Jan 15, 2020 Wikipedia (encyclopedic synthesis citing AdisInsight, FDA label) Bearish

AstraZeneca terminated Phase III development and ultimately withdrew Epanova from market — closing out the Omthera acquisition thesis at a net loss versus the…

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

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AstraZeneca to acquire Omthera for $323M upfront cash + up to $120M dev/approval milestones (total $443M); added NDA-ready Epanova omega-3 dyslipidemia treatment.

Did it work? Outcome assessment

AstraZeneca's $443M bet on Epanova ended in a $533M full impairment and US market withdrawal after the drug's own cardiovascular outcomes trial failed in 2020 — a near-total loss.

Strategic verdict
Failed to Achieve
Financial impact
Impaired/Written Down
AstraZeneca carried a $533M Epanova intangible asset which was impaired in FY2019 following the STRENGTH trial failure, plus an inventory write-down of up to $100M against Core earnings — effectively wiping out the value of the up-to-$443M Omthera acquisition.
Pipeline outcome
Assets Terminated
Epanova (omega-3 carboxylic acids) won US approval for severe hypertriglyceridemia, but the value driver — the 13,086-patient Phase III STRENGTH cardiovascular outcomes trial — was closed in January 2020 after the independent DMC found a low likelihood of benefit. AstraZeneca subsequently exited the omega-3/fish-oil space.

Key facts

Disease & market context

Severe Hypertriglyceridemia / Mixed Dyslipidemia

$533M AstraZeneca Epanova intangible asset value disclosed at 2020 STRENGTH-trial wind-down

Disease Overview

Severe hypertriglyceridemia (fasting triglycerides ≥500 mg/dL) raises the risk of acute pancreatitis and is a marker of broader cardiometabolic disease. Despite statins controlling LDL cholesterol, residual triglyceride-driven cardiovascular risk has been a persistent therapeutic gap, particularly as obesity and type-2 diabetes prevalence has risen.

Competitive Landscape

At deal signing in May 2013 the prescription omega-3 market was dominated by GlaxoSmithKline's Lovaza (omega-3-acid ethyl esters) — peaked >$1B in US sales before its 2014 patent cliff — and Amarin's Vascepa (icosapent ethyl, pure-EPA), launched January 2013. Fenofibrate franchises (Trilipix, Tricor) and niacin (Niaspan; the AIM-HIGH/HPS2-THRIVE failures had just undermined its CV positioning) were the non-omega-3 alternatives. Epanova differentiated as the first free-fatty-acid omega-3 — meant to bypass the food-effect bioavailability issue with ethyl esters — with once-daily 2g/4g dosing. AstraZeneca's strategic logic was to plug Epanova into the Crestor (rosuvastatin) cardiovascular franchise via fixed-dose combinations and use the STRENGTH cardiovascular outcomes trial to expand into the much larger mixed-dyslipidemia population. Epanova won FDA approval May 2014 for severe hypertriglyceridemia, but the STRENGTH MACE trial in mixed dyslipidemia was halted for futility in January 2020 against placebo (corn oil), prompting AstraZeneca to disclose a ~$533M intangible writedown plus inventory writedown — making this one of the highest-profile CV outcomes failures of the decade.

Related deals — scored

DealYearValueOutcome
AstraZeneca PLC / Omthera Pharmaceuticals Inc. (this deal)2013$443M16
AstraZeneca PLC / Daiichi Sankyo Company, Limited2019$6.9B100
AstraZeneca PLC / KuDOS Pharmaceuticals Limited2005$210M98
AstraZeneca PLC / Alexion Pharmaceuticals Inc.2020$39.0B86
AstraZeneca PLC / Acerta Pharma2015$4.0B86
AstraZeneca PLC / Amgen Inc.2020$2.3B84
AstraZeneca PLC / MedImmune Inc.2007$15.6B82

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