Many companies struggle with registration procedures and work instructions that are unclear, outdated, or never formally approved—yet still difficult to reproduce consistently across global teams. To address this, a risk‑based, lifecycle‑oriented approach to SOPs and WIs is essential for efficient global market access of medical devices. The following sections outline how structured, transparent, and globally aligned documentation can significantly improve cooperation, reduce rework, and accelerate approvals. 

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Definition

Standard Operating Procedure (SOP) 

A Standard Operating Procedure defines a high‑level, cross‑functional process describing what must be done, who is responsible, and when the process applies. In regulatory affairs, an SOP may cover topics such as country‑specific testing, technical documentation preparation, deficiency‑letter handling, and product‑release coordination. Common SOPs in medical‑device QMS include Design & Development, Post‑Market Surveillance, Change Control, Software Lifecycle, and Final Release. 

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Work Instruction (WI) 

A Work Instruction provides step‑by‑step, task‑level guidance to ensure consistent execution of a specific activity within an SOP. Examples include preparing a deficiency reply, assembling a dossier, or executing a test plan. Clear WIs reduce risks associated with unofficial instructions, undocumented changes, or inconsistent registration practices. 

 

Foundational Elements of SOP or WI 

• Scope 

• Owner / Process Steward 

• Responsibilities & RACI 

• Change History & Version Control 

• Cross‑references to related regulation SOPs/WIs 

 

Important: Because regulatory requirements evolve and authorities do not “approve” internal procedures, global registration SOPs/WIs must remain flexible and updated without requiring external approval. 

 

1. Absolute Procedures & Instructions (Always Needed) 

1.1 Technical Documentation (TD) 

A high‑level process for assembling TD should be defined. Due to varying dossier complexity, the order may not be fixed, but typically includes: 

• Identification of applicable country regulations 

• Gap analysis 

• Compilation of technical documentation 

• Submission 

• Deficiency reply 

• Consolidation of final dossier 

• Product release 

 

Suggestion: Create a global TD template based on approved dossiers (EU MDR, FDA 510(k)/PMA, NMPA, PMDA). Include instructions for R&D on how to populate each section. 

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1.2 Testing 

Countries such as China, the US, and Brazil require additional testing and unique workflows. A WI is essential. 

Typical tasks: 

• Identify regulatory testing requirements & perform gap analysis 

• Develop test plan with accredited labs 

• Prepare and deliver worst‑case samples 

• Execute testing & troubleshoot deviations 

• Review and evaluate test reports 

 

1.3 Post‑Market Surveillance (PMS) 

Global PMS requires clear responsibilities for collecting, assessing, and escalating post‑market data across all regions. Data sources include complaints, vigilance, service data, literature, PMCF, and risk‑management updates. 

Region‑specific deliverables include: 

• China: Self‑Inspection Report, QMS Renewal Report 

• US FDA: Post‑market surveillance reports 

• EU MDR: SSCP, PMCF Plan/Report, PSUR 

Teams must follow strict timelines to maintain compliance and ensure an updated safety and performance profile. 

 

1.4 Product Release 

Coordination between RA, R&D, and Production is often challenging. A lean approach can accelerate early market entry: 

• Prepare draft design‑transfer package early 

• Finalize labeling and marketing materials 

• Complete packaging, inspection, and related processes 

• Assemble and test final product (pending final certificate) 

This enables alpha launch readiness before final approval. 

 

2. Unpredictable Procedures & Instructions (Case‑by‑Case) 

 

2.1 Labelling 

Country‑specific labeling may change multiple times. The WI should define: 

• Whether revisions are allowed before submission, after submission, or only after approval 

• How to maintain a clean change history 

• Evidence required for each revision 

 

2.2 Change Control 

Traditional teaching says design must be frozen before registration—but in practice: 

• All design changes can be integrated before submission 

• For long submissions (e.g., China, EU), some semi‑critical changes may be added after consultation 

• Non‑significant changes can be implemented at any market stage 

 

2.3 Deficiency Reply 

Authorities differ: 

• China & US: Transparent deficiency rounds 

• EU Notified Bodies: Often opaque timelines 

Manufacturers can control their own deficiency‑reply quality. Experience shows that deficiency handling often requires more effort than initial preparation. 

 

3. When No Procedure or Instruction Is Needed 

If a task involves only one department and is simple (e.g., preparing marketing history), a WI may not be necessary. 

Rule of thumb: 

If ≥5 people or multiple departments are involved → write a WI. 

 

4. Regulatory Lean Approach 

4.1 Tasks to Start Early (Front‑Load) 

These tasks do not influence workflow order but require long lead time or cross‑functional input: 

• QMS certification 

• Main product features & specifications 

• Country‑specific testing (e.g., usability in US, type testing in China) 

• Clinical evaluation 

• Clinical study 

• Substantial equivalence / comparison tables 

This is known as front‑loading or early‑start activities. 

 

4.2 Tasks to Finalize Late 

These tasks may be influenced by authority feedback: 

• Marketing materials 

• Product label & IFU 

• Legalization of documents 

 

✨ What We Support  

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Regulatory Project Management 

• Global registration coordination 

• Cross‑functional alignment 

• Timeline & milestone control 

• Deficiency‑round handling 

• Stakeholder communication 

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Process Gap Detection 

• Process audit 

• Deficiency root‑cause analysis 

• Workflow bottlenecks 

• Missing responsibilities 

• Documentation inconsistencies 

 

Regulatory KPI Monitoring 

• Submission timelines 

• Deficiency cycles 

• Testing readiness 

• PMS deliverables 

• Documentation quality 

• Personal regulatory coaching 

 

Workshops (Germany) 

• On‑site regulatory workshops 

• Process optimisation sessions 

• Cross‑functional training 

• Market‑specific deep dives (EU, US, China) 

 

Interim Regulatory Affairs Manager 

• 20 h/week flexible support 

• Operational RA execution 

• Submission preparation 

• PMS coordination 

• Testing & TD management 

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