What is CDMO vs CRO?
A CDMO provides pharmaceutical development and manufacturing services, while a CRO primarily provides research and clinical-development services. CDMOs may support formulation, process development, scale-up, clinical supply, and commercial manufacturing, whereas CROs commonly support preclinical or clinical research, trial operations, data management, biostatistics, and related research activities.
Answer
CDMOs and CROs are both outsourcing partners used by pharmaceutical and biotechnology companies, but their core roles are different.
What does a CDMO do?
A CDMO may support pharmaceutical companies with activities such as formulation development, analytical development, process optimization, technology transfer, manufacturing scale-up, clinical-trial supply, and commercial production.
The precise services vary significantly between providers. Some CDMOs specialize in areas such as sterile manufacturing, biologics, APIs, oral solid dosage forms, or packaging.
What does a CRO do?
A CRO provides outsourced research services. Depending on its capabilities, a CRO may support preclinical research, clinical-trial design and management, monitoring, data management, biostatistics, pharmacovigilance, medical writing, or regulatory activities.
Do CROs work before CDMOs?
Not necessarily.
CRO and CDMO activities can occur at the same time and at multiple points in development. A CDMO may already be developing formulations or manufacturing clinical-trial material while a CRO manages clinical studies.
Therefore, it is more accurate to think of CDMOs and CROs as complementary service providers rather than two organizations that simply take turns in a fixed sequence.
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