Taconic Biosciences, Inc.

Taconic Biosciences supplies the animals that other laboratories run studies in. Headquartered in Rensselaer, New York, it breeds and sells genetically engineered mice and rats, generates new models to order, and manages client colonies, across seven facilities in the United States and Europe.^[S3][S4][S5] It is a model provider rather than a contract research organization, and that distinction determines what a sponsor can place here: strain generation, breeding, health status and colony logistics, not efficacy or safety studies. The catalogue is stated at more than 4,600 mouse and rat models.^[S4] The company also holds an unusual position in one niche, describing itself as the only proven commercial source of germ-free mice, a line of work it dates to 1961.^[S2]

Services relevant to US drug developers

Model supply and custom model generation

Custom models are generated by gene editing, embryonic stem cell targeting and pronuclear injection, with a doctoral-level project manager assigned to each programme, and the company states it has produced roughly 5,000 custom models over the last fifteen years.^[S5] The catalogue side covers standard inbred, outbred and hybrid strains, immunodeficient lines, diet-induced models, oncology and immuno-oncology models including syngeneic and spontaneous tumour lines, neurobiology models for Alzheimer disease and Parkinson disease research, and inflammatory bowel disease models.^[S2][S4] The immunodeficient portfolio is built on the NOG background, extended with humanized immune system versions and with Fc receptor null variants.^[S2] For an immuno-oncology programme, the choice of humanized model is usually a bigger determinant of what the study can show than the study design itself, so it is worth resolving early with the supplier.

Germ-free and defined microbiome animals

Gnotobiotic work is offered as a service that generates and maintains mice carrying a defined, custom microbiome, and the company cites more than fifty years of experience in the area.^[S5] Related to this is a tiered set of health standards, from germ-free at the most stringent end through defined flora, opportunist free and restricted flora, to murine pathogen free, where a listed set of opportunistic bacteria is tolerated.^[S7] Every animal is stated to be tested under the company own health monitoring system.^[S8] Health standard is not a quality ranking. It is a specification, and a study comparing animals from different tiers, or from different suppliers, may not be comparable at all.

Colony management and adjacent services

Colony management covers housing, health monitoring, animal conditioning, accelerated backcrossing and support for importing an existing colony.^[S5] Embryology services provide rederivation and rapid expansion, and cryopreservation with recovery is offered as risk management for a line.^[S5] Genotyping and molecular characterization are performed throughout breeding by an in-house genetics team.^[S5] Surgical services including cannulation are performed by trained surgeons under board-certified veterinary oversight.^[S5] Additional named capabilities include flow cytometry, gene expression analysis and protein analysis.^[S2]

Compound profiling, explicitly non-GLP

One service does touch compound testing. The company offers profiling using its own absorption, distribution, metabolism, excretion and toxicity model panels, which include xenoreceptor, cytochrome P450 and transporter lines, and it describes this work as non-GLP.^[S9] That is an explicit statement rather than an absence of one, and it is the useful kind: a sponsor knows immediately that these data support decision-making rather than a submission that requires a study conducted under the good laboratory practice regulation.^[R2] The same page names carcinogenicity models including the TK-NOG and TSG-p53 lines and the rasH2 mouse.^[S9] Those models are supplied for studies run elsewhere.

Quality, compliance, and animal welfare (as stated by the company)

The company states that it was the first commercial breeder to receive full AAALAC International accreditation, and its history names accreditation of two sites in 2006.^[S2][S6] It states that all animal operations are overseen by board-certified veterinarians and a standing Institutional Animal Care and Use Committee, that the committee reviews anaesthetic and analgesic use in surgical services, and that it practises the three Rs of replacement, reduction and refinement.^[S5][S6] Memberships in laboratory animal science associations in the United States and Europe are listed.^[S6] No USDA registration statement and no Animal Welfare Assurance statement were found on the pages reviewed; that is an absence in those pages, not a finding about the company status. AAALAC International accreditation is a voluntary evaluation of an institution's animal care and use program, re-evaluated every three years,^[R3] and USDA registration and an OLAW Animal Welfare Assurance relate to the Animal Welfare Act and the PHS Policy respectively;^[R4][R5] none of these establishes GLP compliance, which applies to individual studies.^[R2] FDA does not approve or certify laboratories; registration with FDA does not denote approval.^[R6] This profile does not evaluate the animal care programme.

History and ownership

The company gives three different starting points for itself, and none is presented here as the founding year. Its history page opens in 1940, with a predecessor business started by Robert K. Phelan in a garage in Canajoharie, New York.^[S2] Its own tagline dates the business to 1949.^[S1] The company description used in a 2022 acquisition announcement states 1952, the year operations began in Germantown, New York.^[S10] The name changed from Taconic Farms to Taconic Biosciences in September 2014.^[S2] Ownership has moved twice recently: H.I.G. Capital acquired the company in 2019, and Avista Capital Partners acquired it from H.I.G. on November 1, 2022, with terms not disclosed.^[S2][S10] The chief executive named at that acquisition is not the one listed on the later management page, and no announcement of the change was located.^[S10][S11]

Company facts