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Bristol Myers SquibbPartnership ended

BMS ends Cellares pact over cell therapy production problems, triggering layoffs

What happened

Bristol Myers Squibb has terminated its partnership with Cellares after determining that Cellares's cell therapy system did not meet the necessary requirements to manufacture the CAR T-cell immunotherapy Breyanzi.

Source

Article excerpt

Highlighted: the sentence this signal was extracted from

Bristol Myers Squibb has ended an alliance with Cellares after finding its former partner's cell therapy system failed to meet the requirements necessary to make the CAR T-cell immunotherapy Breyanzi. Cellares plans to lay off about 100 people in response to the loss of the key contract. In 2024, BMS struck a $380 million global capacity reservation and supply agreement with Cellares. The deal positioned BMS to use Cellares' Cell Shuttle system for end-to-end, fully automated production of CAR-T cell therapies at clinical and commercial scales. Now, BMS has walked away from the deal after assessing the potential to use Cell Shuttle to make its CAR-T cell therapy Breyanzi. "Following a comprehensive evaluation, Bristol Myers Squibb determined that the Cellares-partnered Cell Shuttle system could not meet the necessary requirements to make commercial Breyanzi," a BMS spokesperson told BioSpace via email. "This determination is specific to Breyanzi and its established, regulatory-approved manufacturing process." The FDA approved Breyanzi, a CD19-directed CAR-T cell therapy, in 2021. BMS produces the drug through several internal sites, plus through specialized external manufacturers such as Oxford BioMedica. Experts have cautioned in the past that changing cell therapy production post-approval is challenging. Anna McMahon, director of regulatory affairs at Cellares, told...

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Extracted by Autobound

From the Signal API record
Event
Partnership ended

What this signalsAn ended partnership often leaves a gap another vendor can fill.

Companies

  • CellaresPartnercellares.com

More partnership ended signals at other companies

The full record

From the Signal API record

Extraction

Confidence
95%
Detected
Aug 26, 2026
signal_type
news
signal_subtype
ends_partnership_with

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The API returns more than this page shows

This page shows a preview. The full news record in the Signal API and MCP can also have these 8 fields. Some fields are empty for some signals.

Company

  • linkedin_urlValue in the API
  • industriesValue in the API
  • employee_count_lowValue in the API
  • employee_count_highValue in the API
  • revenueValue in the API
  • descriptionValue in the API

Signal

  • signal_nameValue in the API
  • associationValue in the API
Show the full JSONThe record on this page and the API request

GET /v1/signals/33885598-9103-c269-b1a7-cc8cc7c15dfd returns this record as JSON. POST /v1/companies/enrich returns every signal for bms.com.

{
  "signal_id": "33885598-9103-c269-b1a7-cc8cc7c15dfd",
  "signal_type": "news",
  "signal_subtype": "ends_partnership_with",
  "detected_at": "2026-08-26T12:48:13+00:00",
  "company": {
    "name": "Bristol Myers Squibb",
    "domain": "bms.com"
  },
  "data": {
    "url": "https://www.biospace.com/business/bms-ends-cellares-pact-over-cell-therapy-production-problems-triggering-layoffs",
    "title": "BMS ends Cellares pact over cell therapy production problems, triggering layoffs - BioSpace",
    "excerpt": "Bristol Myers Squibb has ended an alliance with Cellares after finding its former partner’s cell therapy system failed to meet the requirements necessary to make the CAR T-cell immunotherapy Breyanzi. Cellares plans to lay off about 100 people in response to the loss of the key contract. In 2024, BMS struck a $380 million global capacity reservation and supply agreement with Cellares. The deal positioned BMS to use Cellares’ Cell Shuttle system for end-to-end, fully automated production of CAR-T cell therapies at clinical and commercial scales. Now, BMS has walked away from the deal after assessing the potential to use Cell Shuttle to make its CAR-T cell therapy Breyanzi. “Following a comprehensive evaluation, Bristol Myers Squibb determined that the Cellares-partnered Cell Shuttle system could not meet the necessary requirements to make commercial Breyanzi,” a BMS spokesperson told BioSpace via email. “This determination is specific to Breyanzi and its established, regulatory-approved manufacturing process.” The FDA approved Breyanzi, a CD19-directed CAR-T cell therapy, in 2021. BMS produces the drug through several internal sites, plus through specialized external manufacturers such as Oxford BioMedica. Experts have cautioned in the past that changing cell therapy production post-approval is challenging. Anna McMahon, director of regulatory affairs at Cellares, told BioSpace...",
    "summary": "Bristol Myers Squibb has terminated its partnership with Cellares after determining that Cellares's cell therapy system did not meet the necessary requirements to manufacture the CAR T-cell immunotherapy Breyanzi.",
    "planning": false,
    "image_url": "https://static.biospace.com/dims4/default/6887fb6/2147483647/strip/true/crop/3644x2050+0+342/resize/1440x810!/quality/90/?url=https%3A%2F%2Fk1-prod-biospace.s3.us-east-2.amazonaws.com%2Fbrightspot%2F28%2F8c%2F58d1ad814a5eae347623f92244c4%2Fistock-2164034397.jpg",
    "confidence": 0.95,
    "published_at": "2026-08-26T12:48:13Z",
    "article_sentence": "Bristol Myers Squibb has ended an alliance with Cellares after finding its former partner’s cell therapy system failed to meet the requirements necessary to make the CAR T-cell immunotherapy Breyanzi.",
    "related_company_name": "Cellares",
    "related_company_domain": "cellares.com"
  }
}

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