257 - 21 CFR Part 4 Explained: CGMP Requirements for Combination Products

<p>21 CFR Part 4 sets the CGMP requirements for combination products. If your product has a drug and a device in it, you&#39;re on the hook for both sets of regulations. In this video, I walk through Part 4 Subpart A section by section: the scope, the key definitions, which CGMPs apply, and the two ways to comply, including the streamlined approach under 4.4(b).</p><p><br></p><p>Updated for February 2026, when the device side moved to the QMSR and ISO 13485, plus the new medical gas provisions.</p><p><br></p><p>Working on your first combination product program? Watch this next: https://youtu.be/uG_Ea__-Pjc</p><p><br></p><p>Want a second set of eyes on your combination product quality system? Book a quick call: https://calendly.com/letscombinate/quick-chat</p><p><br></p><p>Sources</p><p>21 CFR Part 4 (eCFR): https://www.ecfr.gov/current/title-21/chapter-I/subchapter-A/part-4</p><p>FDA Guidance, CGMP Requirements for Combination Products: https://www.fda.gov/media/90425/download</p><p><br></p><p>Chapters</p><p>0:00 Intro</p><p>0:50 21 CFR Part 4 Subpart A vs. Subpart B</p><p>2:00 Full compliance vs. the streamlined approach</p><p>2:39 21 CFR 4.1: Scope (single-entity and co-packaged)</p><p>3:52 21 CFR 4.2 and 4.3: Definitions and which CGMPs apply</p><p>4:37 21 CFR 4.4: How to comply with CGMPs for combination products</p><p>5:38 Drug-based system: ISO 13485 and QMSR provisions to add</p><p>7:58 Device-based system: 21 CFR 211 provisions to add</p><p>11:24 Medical gas and 4.4(c)–(e): separate facilities</p><p>12:10 Wrap-up</p><p><br></p><p>About me</p><p>I&#39;m Subhi Saadeh. I help companies make drug and device quality systems work together. I&#39;m a consultant, auditor, and trainer focused on combination products, an ISO 13485 Lead Auditor, and an ASQ CQA and CQE. I&#39;ve worked on prefilled syringes, autoinjectors, IV bags, cartridges, and vial-based systems, from clinical through commercial.</p><p><br></p><p>🌐 https://letscombinate.com</p><p>📅 https://calendly.com/letscombinate/quick-chat</p><p>💼 https://www.linkedin.com/in/subhi-saadeh-1169aa21</p><p>✉️ subhi@letscombinate.com</p><p><br></p><p>#CombinationProducts #21CFRPart4 #QMSR</p>