Process Validation

Enhance the robustness of your process with a regulatory starting material(RSM) study strategy and process quality risk assessment(QRA) strategy tailored to the needs of your project, leading to the successful completion of at least three consecutive process validation batches to enable and accelerate your new drug launch process.

With a professional later phase project team focusing on the study of regulatory starting materials(RSMs) and process quality risk assessment(QRA) to improve the robustness of the process, so that your project can pass the process validation process smoothly and take a key step towards the NDA application.

How does it work?

Our later-phase project team will communicate with your technical and registration team to determine the regulatory starting materials(RSMs). Then, we will run a quality study based on a set of processes and strategies for the regulatory starting materials(RSMs). Our service and strength areas include but not limited to:

  • Raw material vendor qualification for RSMs
  • Historical data collection of typical batches
  • Identification of impurities
  • Impurities synthesis and reference standard characterization
  • Impurity fate and spiking studies
  • Analytical method confirmation for RSMs
  • Release specification setting for RSMs
  • RSM study report


In the meantime, the process quality study and control for each step after regulatory starting materials(RSMs) to the APIs will be thoroughly evaluated in accordance with a set of systematic and complete processes and strategies. Our service and strength areas include but not limited to:

  • First version process failure mode and effects analysis (FMEA)
  • Design of experiments(DoE)
  • Experiments execution
  • Second version process FMEA
  • Definition of critical process parameters(CPP) for NOR and PAR
  • Analytical method confirmation for intermediates
  • Release specification setting for intermediate
  • Conformation of final process
  • Quality risk assessment(QRA) study report


The final version of the process will be transferred to plant after PRD team completes RSM study and the quality risk assessment(QRA) study. PRD team will work closely with plant process engineers to fully review and prepare the technical documents related to the process validation. We will ensure timely communication with your team to reach agreement before execution of the process validation batches under the cGMP conditions, followed by a complete validation report for the purpose of your NDA filing.

Why Bellen is your preferred partner?

  • We have valid manufacturing licenses
  • We have a professional later-phase project execution team
  • We have a professional later-phase project management team
  • We have rich practical experiences in later-phase project R&D and manufacturing
  • We have established a robust quality system to guide later-phase project R&D and manufacturing
  • Tech-transfer is carried out seamlessly between process R&D team and plant process engineers
  • We promote transparent and effective communication

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