Pharma BD Deal Intelligence

Merck & Co. Inc. / Curon Biopharmaceutical (Shanghai) Co. Ltd.

2024 · Asset Purchase · $1.3B · Complete

Merck paid $700M upfront, up to $1.3B total, for Curon's CN201, a CD3xCD19 bispecific T-cell engager in Phase 1 for relapsed/refractory non-Hodgkin lymphoma and Phase 1b/2 for B-ALL, with a pre-tax charge of ~$750M booked at close—though the drug's autoimmune potential remains unproven beyond the deal's stated indications.

Outcome grade pending — assessed 5 years post-close.

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The coverage arc

Aug 09, 2024 Endpoints News Bullish

Merck is paying $700 million upfront and up to $600 million in milestones to acquire global rights to CN201, a CD19xCD3 bispecific T-cell engager, from China's…

Aug 12, 2024 BioPharma Dive Bullish

Merck is acquiring global rights to CN201, a CD19xCD3 bispecific antibody, from Shanghai-based Curon Biopharmaceutical for $700 million upfront and up to…

Oct 01, 2024 www.merck.com Neutral

Merck Completes Acquisition of Investigational B-Cell Depletion Therapy, CN201, from Curon Biopharmaceutical (October 1, 2024).

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

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Merck entered a definitive agreement to acquire global rights to CN201 from Curon Biopharmaceutical for $700M upfront plus up to $600M in milestones contingent on development and regulatory approval. The acquisition was completed on October 1, 2024 (Merck recorded a pre-tax charge of ~$750M reflecting the upfront payment and related costs). CN201 is a CD3xCD19 bispecific T-cell engager in Phase 1 for r/r NHL and Phase 1b/2 for r/r B-ALL, with potential in B-cell autoimmune diseases. Top-25 pharma buyer.

Key facts

Disease & market context

Relapsed/Refractory B-cell Malignancies and B-cell-Mediated Autoimmune Disease

90K US cases/yr · $25.0B Global B-cell NHL and Autoimmune Therapeutics Market

Disease Overview

CN201 (MK-2006 following acquisition) is a CD3xCD19 bispecific T-cell-engager antibody developed for two core areas. Relapsed/refractory non-Hodgkin lymphoma (NHL) encompasses a heterogeneous group of B-cell malignancies with ~80,000 new US diagnoses annually; diffuse large B-cell lymphoma (DLBCL, ~40% of NHL), follicular lymphoma, mantle cell lymphoma, and marginal zone lymphoma remain the major subtypes. Despite the CAR-T revolution (Yescarta, Kymriah, Breyanzi) and CD20xCD3 bispecifics (Lunsumio, Columvi, Epkinly), a meaningful fraction of r/r patients relapse, and access constraints limit CAR-T utilization. Relapsed/refractory B-cell acute lymphoblastic leukemia (B-ALL) affects ~3,000 US patients annually with poor salvage outcomes absent HSCT; approved therapies include Blincyto (blinatumomab CD19xCD3), Besponsa (inotuzumab ozogamicin CD22 ADC), and CAR-Ts Tecartus and Kymriah. The autoimmune opportunity spans systemic lupus erythematosus (~200,000), multiple sclerosis (~1 million), myasthenia gravis, rheumatoid arthritis, and ANCA-associated vasculitis, where deep B-cell depletion is emerging as a potentially curative-intent intervention following early CAR-T and bispecific antibody case reports demonstrating drug-free remission after autoreactive B-cell resetting.

Competitive Landscape

The B-cell depletion landscape is highly competitive across modalities. CD20-directed monoclonal antibodies: Rituxan (rituximab, Roche), Gazyva (obinutuzumab, Roche), Arzerra (ofatumumab, Novartis), and Kesimpta (ofatumumab SC, Novartis) for multiple sclerosis. CD19xCD3 T-cell engagers: Blincyto (blinatumomab, Amgen, approved for B-ALL and r/r DLBCL), with CN201 (MK-2006) as the leading clinical CD19xCD3 Phase 1 competitor. CD20xCD3 T-cell engagers: Lunsumio (mosunetuzumab, Roche), Columvi (glofitamab, Roche), Epkinly (epcoritamab, AbbVie/Genmab), and odronextamab (Regeneron, CRL received 2024). CD19 CAR-T cellular therapies: Yescarta and Tecartus (axicabtagene and brexucabtagene ciloleucel, Gilead/Kite), Kymriah (tisagenlecleucel, Novartis), Breyanzi (lisocabtagene maraleucel, Bristol Myers Squibb). CD22 ADC: Besponsa (inotuzumab ozogamicin, Pfizer), and Lonca (loncastuximab tesirine, Swedish Orphan Biovitrum). Autoimmune CD19 CAR-T in development: Cabaletta (CABA-201), Kyverna (KYV-101), Gracell (GC012F, acquired by AstraZeneca), Novartis YTB323, and Bristol Myers/2seventy. Ianalumab (Novartis anti-BAFF-R) and obinutuzumab (Gazyva) expansions target autoimmune B-cell depletion. The class convergence across oncology and autoimmunity is driving major pharma deal activity.

Deal timeline

Related deals — scored

DealYearValueOutcome
Merck & Co. Inc. / Curon Biopharmaceutical (Shanghai) Co. Ltd. (this deal)2024$1.3B
Merck & Co. Inc. / Acceleron Pharma Inc.2021$11.5B90
Merck & Co. Inc. / Peloton Therapeutics Inc.2019$2.2B88
Merck & Co. Inc. / AstraZeneca PLC2017$8.5B87
Merck & Co. Inc. / Moderna, Inc.2022$250M86
Merck & Co. Inc. / Moderna, Inc.2016$250M84
Merck & Co. Inc. / Eisai Co., Ltd.2018$5.8B83

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