Pharma BD Deal Intelligence

Mallinckrodt plc / Therakos, Inc.

2015 · Acquisition/Merger · $1.3B · Complete

Mallinckrodt paid $1.33B for Therakos in 2015 and ran it as a stable niche for nearly a decade, but sold it for $925M in 2024 amid two Chapter 11 bankruptcies—a real loss on the original price, driven by opioid litigation debt rather than the asset's own performance.

CALLED IT — OFF BY 2
Full analysis, sources & comparables →

The coverage arc

Aug 04, 2015 FiercePharma Bullish

Mallinckrodt expands its hospital growth platform with the $1.325B Therakos acquisition, broadening exposure to immunotherapy and recurring photopheresis…

Sep 28, 2015 BioSpace Neutral

The acquisition closes, adding Therakos's global photopheresis franchise and expected $185-195M in FY2015 sales to Mallinckrodt's specialty hospital portfolio.

Aug 20, 2024 FierceBiotech Bearish

Nine years after paying $1.325B, Mallinckrodt sold Therakos to CVC for $925M to reduce net debt by over 60%, suggesting the original acquisition price did not…

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

All 5 sources with sentiment breakdown →

Mallinckrodt acquired Therakos from The Gores Group for approximately $1.325B, adding the global leader in autologous immune cell therapy via extracorporeal photopheresis. Closed September 28, 2015. Mallinckrodt later divested Therakos to CVC Capital for $925M (2021).

Did it work? Outcome assessment

Strategic verdict
Partially Achieved
Financial impact
Accretive
Therakos net sales grew from a $185-195M expected FY2015 base to $214.9M (FY2017), $231.2M (FY2018), and $246.9M (FY2019) inside Mallinckrodt's Specialty Brands segment. But the $750M of 5.625% notes issued to fund the deal added to the leverage that preceded the parent's October 2020 Chapter 11, and the 2024 exit to CVC at $925M crystallized a ~30% loss versus the $1.325B price.
Pipeline outcome
Assets Advanced
The CELLEX ECP platform grew steadily with new patent filings (2016) targeting protection to ~2036; ECP remained US-approved only for CTCL skin manifestations, with broader indications (e.g., GvHD) unapproved and the legacy off-label promotion investigation by the US Attorney's Office (E.D. Pa.) still open through the window.

Key facts

Disease & market context

Cutaneous T-cell lymphoma (CTCL) and graft-versus-host disease (GvHD)

3K US cases/yr · $190M Therakos FY2015 net sales guidance ($185-195M)

Disease Overview

Cutaneous T-cell lymphoma is a rare group of non-Hodgkin lymphomas of skin-homing T cells, with mycosis fungoides and Sézary syndrome being the most common subtypes. CTCL is incurable in advanced stages, runs an indolent-to-aggressive course, and disproportionately affects men, non-Hispanic Black patients, and adults over 40. Therakos extracorporeal photopheresis (ECP) is the only FDA-approved cell-based immunotherapy for the palliative treatment of CTCL skin manifestations refractory to other therapies, and is also used off-label for chronic GvHD and solid-organ transplant rejection.

Competitive Landscape

The CTCL therapeutic landscape at the time of the 2015 acquisition was a fragmented mix of skin-directed therapies (topical mechlorethamine/Valchlor, bexarotene/Targretin gel, phototherapy), systemic agents (oral bexarotene, methotrexate, interferon, romidepsin/Istodax, vorinostat/Zolinza, pralatrexate/Folotyn), and Therakos extracorporeal photopheresis as the dominant cell-based modality. Therakos's UVAR XTS and CELLEX systems represented a unique drug-device combination with no direct competitors on the ECP platform, giving Mallinckrodt a category-of-one asset with strong recurring consumables revenue. Adjacent and subsequent entrants reshaped the broader CTCL market: Adcetris (brentuximab vedotin, Seattle Genetics/Takeda) gained CTCL approval for CD30+ MF/pcALCL in 2017, and Poteligeo (mogamulizumab, Kyowa Kirin) was approved in 2018 for relapsed/refractory MF and Sézary syndrome, eroding some of ECP's positioning in advanced disease. Mallinckrodt subsequently divested Therakos to CVC Capital Partners for $925M in December 2024, recouping a fraction of original deal value.

Related deals — scored

DealYearValueOutcome
Mallinckrodt plc / Therakos, Inc. (this deal)2015$1.3B48
Mallinckrodt plc / Cadence Pharmaceuticals, Inc.2014$1.4B50
Mallinckrodt plc / Ikaria, Inc.2015$2.3B37
Mallinckrodt plc / Sucampo Pharmaceuticals, Inc.2017$1.2B19
Mallinckrodt plc / Questcor Pharmaceuticals, Inc.2014$5.6B18
Mallinckrodt plc / InfaCare Pharmaceutical Corporation2017$425M12
Amgen Inc. / Micromet Inc.2012$1.2B88

Compare all 7 side-by-side →

See the full interactive analysis, sources & comparables →