The Manufacturing Contract Mistakes That Derail Medical Device Projects (And How to Avoid Them)

You’ve spent months perfecting your medical device concept. Your tolerances and specifications are well defined, your funding is in place, and your verification, validation, and regulatory submission are complete. A contract manufacturer sends over their agreement, and you’re ready to sign. 

Here’s the problem: contract terms and conditions can be the difference between a smooth path to market and a costly manufacturing nightmare. 

Most first-time innovators, whether working from a garage, a university lab, a startup, or a clinical practice, don’t have the resources available to understand what should be included in a manufacturing contract until something goes wrong. 

This is Part 1 of a two-part guide. In this article, you’ll learn how to recognize a true contract for services from a qualified medical device manufacturing partner. In Part 2, you’ll learn how to review the “fine print” on costs, intellectual property (“IP”), warranties, and indemnification. 

At a Glance: Your Pre‑Contract Medical Device Manufacturing Checklist 

This article does not constitute legal advice and is merely intended to be utilized as guidance while reviewing contracts. The following does not take the place of, nor should it be considered legal advice as a substitute for consulting with legal counsel in your jurisdiction. The following is a checklist to be considered in addition to (and not as a replacement for) legal counsel or advice. When reviewing a contract you should consider the following:  

• Confirm you have an agreement that clearly allocates responsibilities between the parties and embeds quality expectations;  
   

• Verify your manufacturer’s qualifications, certifications (for example, ISO 13485), and experience with devices like yours and whether or not they have the proper insurance in place to protect your device from liability; and 
   

• Ensure current specifications, change control, and quality responsibilities are clearly incorporated and kept up to date. 

A simple way to think about your medical device manufacturing agreement: it must cover (1) responsibilities and quality system, (2) specifications and change control, (3) IP and confidentiality, (4) costs and timelines, and (5) risk and liability. Part 1 focuses on the first two; Part 2 covers the rest. 

Step 1: Is This Even a Contract? 

Before you worry about fine print and legal terms, ask the most fundamental question: does this document clearly state who is responsible for what? 

If a potential manufacturer says “Sure, I can do it, just send me a check,” without formal terms and conditions, or without a robust discussion about expectations, that is your warning sign. A legitimate medical device manufacturing contract (often paired with a separate Quality Agreement and Statement of Work) outlines responsibilities for both parties, specifies subcontractor arrangements, and describes quality assurance and regulatory support processes. 

It is important for clients and vendors to ensure that written terms and conditions are in place to cover all contingencies and the worst-case scenarios you hope never happen. This includes being clear about who is responsible for which aspects of manufacturing, what happens in the event of nonconformance or recall, and what mechanisms exist to ensure regulatory compliance. 

Step 2: Is This a Qualified Medical Device Manufacturing Partner? 

Once you know you have a “real” contract that clearly defines the roles of each party, what services are being provided, and what the specifications and requirements are, the next question is whether this is the right partner for your device. In case you haven’t done this in prior evaluation work, you can use the general questions below to begin your inquiry. This list is not exhaustive, but meant as a guide to assist you as you assess vendors.   

About qualifications 

Ask the manufacturer directly about: 

• Certifications: Solicit and acquire evidence of current certifications such as ISO 13485, including which sites and activities are covered and when the last audit occurred. 
  

• Experience: How many times have they manufactured products of similar complexity, classification and regulatory pathway, and how closely those products relate to your device? While the manufacturer should not disclose any confidential information about other clients to you in these discussions, they should be able to broadly give examples of products they have manufactured that can give you an idea of their capabilities.  
  

• Regulatory track record: Are there any recent major findings from regulators or notified bodies that could affect your program?
• Insurance: Does this manufacturer carry the proper types of insurance, adequate to cover your device and their liabilities? This will be discussed more in depth in Part 2.  

While these questions are broad and general, they should help you gauge whether a manufacturer’s  quality management system and experience align with your needs for your product and the level of control expected for outsourced medical device processes. 

About location and oversight 

• Location: Ask where the work and services will be performed.  

• Oversight: Clarify who will oversee the process, especially if subcontractors are being utilized, and discuss how you can oversee the work as well. 

If work is done in another country or across multiple sites, ask how this might affect timelines, logistics, costs and tariffs, and your ability to audit and inspect. Your contract (or accompanying Quality Agreement) should address your right to audit, how often audits can occur, and how non-conformances will be handled. 

Step 3: How Are Specifications, Quality, and Change Control Locked Down? 

For medical devices, vague or outdated specifications and unclear quality responsibilities are a fast path to nonconforming product and regulatory exposure. 

About specifications 

Confirm that you and the manufacturer are working from the same specifications: 

• Where in the agreement are the current specifications referenced (for example, as an exhibit or controlled document list) or are the specifications separate? If so, how does the manufacturer ensure proper version control? 

• How will the manufacturer ensure subcontractors and suppliers are using the same, most current version? 

• How will updates, changes, or revisions to the specifications be handled? 

Rather than embedding lengthy technical specs in the body of the contract, most companies reference controlled documents or drawings in an exhibit or separate document that can be updated via a defined change-control process. It is often helpful to understand that process.  

About quality responsibilities (and the Quality Agreement) 

Your contract may be (and probably should be) complemented by a Supplier Quality Agreement or Quality Assurance Agreement that explicitly addresses quality system responsibilities, including: 

• Which party owns which quality system activities (for example, incoming inspection, process validation, environmental monitoring, CAPA, complaint-handling support); 

• How nonconforming product is managed, who performs investigation and rework, and who pays for scrap or rework in different scenarios; and  

• How each side will support regulatory inspections, audits, and unannounced visits. 

ISO 13485 and related regulatory expectations require documented controls and agreements for outsourced processes that affect product conformity, which makes these quality agreements more than just “nice to have.” Some of these terms are incredibly important in ensuring your final product is ready for market.   

About changes 

Any changes to your design, specifications, manufacturing process, equipment, materials, or key suppliers can affect product conformity and your regulatory filings. 

You will likely want to know whether: 

• There is a defined process for notifying you about proposed changes and obtaining your approval where needed; and,
  

• Changes will be assessed for impact on risk, design control, and regulatory submissions. 

In Part 2, you’ll see how to translate these ideas into specific contract language around change control and documentation.  

If you’re comfortable that you have a “real” contract and a qualified partner who understands specifications and quality, the next risks live in the “fine print” or legal terms you might be tempted to skim. As previously noted, this article is not legal advice and does not take the place of proper legal counsel in your jurisdiction. This article is meant as a guide to utilize in consultation with local professionals.  

In Part 2 – “The Fine Print That Saves Your Device: Specs, Hidden Costs, and Liability in Medical Device Manufacturing Contracts” you’ll learn: 

• How to spot and manage hidden cost exposures (equipment, calibration, storage, tariffs, audits, recalls); 

• What your contract should say about subcontractors, intellectual property (“IP”) ownership, confidentiality, and work for competitors; 
• How to understand and negotiate key legal terms like warranties and indemnification; and, 

• The non‑negotiable red flags that should stop you from signing. 

About the author: Carrie Randa is VP, Legal for Veranex.  

Manufacturing Solutions at Veranex - Production aligned with engineering, quality, and clinical timelines; from clinical builds to commercial scale 

The gap between a working prototype and a compliant, scalable production process is where many device programs stall. Veranex Manufacturing Solutions provides pilot-to-commercial CDMO capabilities, supply chain management, and process validation within an ISO 13485-certified QMS, designed to support clinical builds, design transfer, and commercial launch. Upstream, our manufacturing team receives DFM-informed designs from engineering, with quality and regulatory requirements embedded from the start. Downstream, manufacturing produces controlled builds for preclinical studies and clinical trials, with documentation that supports regulatory submissions and commercial scale-up. One team, one quality system, no thrown-over-the-wall surprises. That's how your business goes faster.