CMC & Manufacturing

Process Validation(PV)

Documented evidence establishing high confidence that a process consistently produces a product meeting specifications.

Usage Examples

Process validation included three consecutive PPQ batches.
Continued process verification monitors critical quality attributes.
The validation protocol was approved before execution.

What is PV?

Process validation provides documented evidence establishing a high degree of assurance that a specific process will consistently produce a product meeting predetermined specifications and quality attributes.

FDA's 2011 Process Validation Guidance describes a lifecycle approach with three stages: Process Design (developing knowledge and understanding), Process Qualification (demonstrating reproducibility at commercial scale), and Continued Process Verification (ongoing assurance during routine production).

Validation applies to manufacturing processes, cleaning, analytical methods, computer systems, and more. The approach is risk-based, science-based, and emphasizes process understanding over extensive end-product testing.

Regulatory Context

This term appears most often in cmc & manufacturing workflows where submission quality, regulatory evidence, and audit readiness depend on consistent language. It is commonly referenced alongside 21 CFR 211 100, FDA PROCESS VALIDATION GUIDANCE, ICH Q8.

FDAICHHealth Canada

When This Matters

Process validation included three consecutive PPQ batches.
Continued process verification monitors critical quality attributes.
The validation protocol was approved before execution.

Common Mistakes

Failing to align CMC change narratives with current CFR/ICH expectations.
Submitting incomplete control strategy documentation.
Separating manufacturing and regulatory review cycles too late in execution.

Related Regulations

21 CFR 211 100FDA PROCESS VALIDATION GUIDANCEICH Q8

Frequently Asked Questions

Stage 1: Process Design - building process knowledge. Stage 2: Process Qualification - demonstrating the commercial process is reproducible (includes PPQ). Stage 3: Continued Process Verification - ongoing monitoring and improvement.

There is no fixed number. The traditional "three batches" is a minimum starting point, but the actual number should be based on process knowledge, variability, and risk. More complex processes may need more batches.

Qualification typically refers to equipment/facility/utility verification (IQ, OQ, PQ), while validation refers to processes and methods. Both provide documented evidence of fitness for intended use.