As China’s medical device sector grows rapidly, it has become a key global manufacturing hub for a wide range of device products, from basic consumables to high-risk implantable devices. This expansion has been accompanied by more stringent regulatory control, with the National Medical Products Administration (NMPA) enforcing tighter Good Manufacturing Practice (GMP) standards, more stringent adverse event surveillance, and a more effective recall system. In parallel, NOW the General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) conducts safety, certification, and inspection on some devices.

However, quality issues persist, which are often caused by low-quality systems in certain manufacturing facilities. For foreign companies, independent quality audits are still a critical insurance measure to ensure that Chinese operations or partners comply with both local regulations and international standards.

Regulatory Overview of Medical Device Audits in China

There are two main types of on-site audits that the NMPA requires for medical devices:

1. Quality Management System (QMS) Audit for Registration

It is a one-time, all-inclusive audit that both domestic and foreign companies have to undergo for device registration in China. It ensures that the QMS of the manufacturer conforms to China’s GMP standards for medical devices and is satisfactory for the device class.

2. Annual GMP Audit for Manufacturing Licenses

This type of audit applies to domestic manufacturers after registration. These annual inspections ensure continued GMP compliance and that corrective action from previous audits has been successfully addressed.

The inspections both consist of thorough checklists, document review, and numerous meetings between company personnel and audit personnel. Audited topics consist of design control, supplier relationship, manufacturing quality, equipment maintenance, environmental monitoring, and complaint reporting.

Structure of a Typical Chinese Medical Device Quality Audit Report

The most important components of a medical device quality audit report are outlined below:

1. Basic Information

The report begins with the name and address of the audited company, product class and type, audit date, audit team, applicable regulations, and scope of products or processes covered during the audit.

2. Audit Purpose and Scope

This section explains the audit goals, e.g., verifying GMP compliance, registration preparation by NMPA, or corrective action for previous nonconformities, and enumerates key manufacturing steps, facilities, and processes.

3. Company Overview

This section contains information about the manufacturer’s operations, product range, market strategy, and regulatory recordS, such as previous inspections and certifications, corrective actions, etc.

4. Audit Summary

This report gives a general impression of compliance status with strengths and weaknesses emphasized. Findings are grouped into Critical, Major, Minor, or Recommendations.

5. Specific Findings

Explains each noncompliance or area for improvement, including but not limited to:

• The process or area involved (e.g., incoming inspection, cleanroom operation, document control)
• The specific finding (e.g., lack of calibration records, environmental monitoring not frequent enough)
• Severity classification
• Reference to relevant regulations or SOPs

6. Site Tour Findings

Findings from the auditors’ visits to the manufacturing area, cleanroom, warehouse, QC lab, HVAC, water systems, etc. These include environmental controls checks, measures to prevent contamination, and equipment status among others.

7. Review of Documentation

This entails reviewing the SOPs, manufacturing records, work manuals and other specific documents to see whether they comply with Chinese GMP and applicable ISO 13485 requirements. Some items reviewed include things like risk management files, device master records, validation protocols, and CAPA procedures.

8. GMP Compliance Statement

Declares whether manufacturing operations are being performed according to cGMP and whether there is a need for corrective action.

9. Follow-Up Requirements

Outlines corrective and preventive actions (CAPAs), responsible personnel to perform each follow-up requirement, deadlines to be met with improvements, and requirements for submission of evidence.

10. Confidentiality and Key Attachments

Ensures the confidentiality of proprietary information and may include annexes like a site map, list of equipment, photos, and copies of important documents.

Case Study

An audit conducted by PBM auditors at a Class II medical device manufacturer in China illustrates how these components come together in practice. The audit focused on sterile disposable products, which were inspected against NMPA medical device GMP and relevant ISO standards.

Areas that were investigated:

• Incoming Material Control: our auditors inspected supplier qualification files, raw material COAs, and quarantine procedures. There was a minor finding – a lack of documentation for re-evaluations of current suppliers.
• Production Environment: Cleanroom conditions, gowning procedures, and environmental monitoring records were examined. The auditors observed gaps in the trend analysis of air particle count and the need for more frequent microbiological monitoring in some areas.
• Equipment and Process Validation: Calibration records of manufacturing equipment were checked. Process validation files for sterile barrier systems were compliant but had no documented worst-case scenario testing.
• Document Control: Overall, the QMS manual and SOPs were acceptable, although some controlled documents lacked the latest revision dates.
• Complaint Handling and CAPA: Logs of complaints were current, and CAPA procedures were established. However, the root cause analysis of two nonconformities did not have sufficient detail.

The audit concluded with no critical remarks and a few minor nonconformities, which require CAPA responses within 30 days. The conclusion is that the manufacturer’s GMP status of compliance was good enough to continue production and export.

Why Medical Device Quality Audits Are Important

Foreign companies cannot depend only on mandatory inspections by the NMPA and AQSIQ. Quality audits conducted by independent third-party auditors offer an additional layer of confidence via several aspects:

• Verification of compliance with destination market requirements (e.g., EU MDR, U.S. FDA, etc.)
• Identifying risks before they lead to recalls or import refusals
• Enhancing supplier relationships by establishing clear quality expectations
• Ensuring smoother regulatory submissions by preemptively addressing gaps and addressing problems before they happen

Although China’s medical device industry operates under increasingly stringent GMP regulations, quality risks persist because of variability in QMS implementation. Comprehensive quality audits covering facilities, processes, documentation, and personnel are essential to assure product safety and access to the global marketplace.

A typical medical device audit report is an evidence-based compliance assessment that identifies strengths and improvement areas. Chinese medical device manufacturers and their foreign partners can act based on these findings to uphold high-quality standards and patient safety in the competitive international markets.

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Written by: Ames Gross – President and Founder, Pacific Bridge Medical (PBM)
Mr. Gross founded PBM in 1988 and has helped hundreds of medical companies with regulatory and business development issues in Asia. He is recognized nationally and internationally as a leader in the Asian medical markets. Mr. Gross has a BA degree, Phi Beta Kappa, from the University of Pennsylvania and an MBA from Columbia University.