{"id":6657,"date":"2025-09-03T11:51:35","date_gmt":"2025-09-03T09:51:35","guid":{"rendered":"https:\/\/mediconomics.com\/glossar\/quality-assurance\/"},"modified":"2026-08-24T22:07:25","modified_gmt":"2026-08-24T20:07:25","slug":"quality-assurance","status":"publish","type":"glossary","link":"https:\/\/mediconomics.com\/en\/glossar\/quality-assurance\/","title":{"rendered":"Quality Assurance"},"content":{"rendered":"<p>Quality Assurance, QA for short, encompasses planned and systematic activities intended to build confidence that processes and results fulfill predefined quality requirements. In regulated environments, QA is system-related and preventive: it assesses whether the quality management system, its procedures, and its oversight are functioning suitably.<\/p>\n<h2>Task and independent perspective<\/h2>\n<p>QA creates the preconditions so that quality does not only have to be determined at the end of a process. This includes the design and maintenance of SOPs, risk-based audit programs, the evaluation of suppliers and service providers, the tracking of CAPA, as well as the assessment of quality metrics and management reviews. QA checks whether responsibilities, training, documents, and controls together form a robust system.<\/p>\n<p>The function requires sufficient independence from the activities it evaluates. Independence does not mean organizational isolation, but an effective, unbiased assessment and the possibility of escalation. ICH Q10 requires defining and communicating management responsibilities, authorities, and relationships of quality-relevant units. Top management provides resources and evaluates the effectiveness of the quality system.<\/p>\n<h2>Methods of quality assurance<\/h2>\n<p>Audits are a central QA tool. Based on defined criteria, they evaluate whether an investigator site, a service provider, a system, or an internal process fulfills the requirements. An audit finding is initially a documented observation. QA supports the evaluation of risks, investigation of root causes, and determination of suitable CAPA; it must not replace the audit result with a premature administrative closure.<\/p>\n<p>Further QA activities are the approval and periodic review of quality-relevant procedures, the risk assessment of outsourced activities, and the control of change processes. Quality assurance thus follows a lifecycle approach. It looks at recurring patterns and system weaknesses, not just the single incorrect data record. ICH E6(R3) requires applying QA across the entire clinical trial and implementing risk-based strategies to prevent, detect, and address serious breaches.<\/p>\n<h2>Distinction from Quality Control<\/h2>\n<p>Quality Control, QC for short, directly examines work results, products, or data for the fulfillment of predefined criteria. A document review prior to release, an edit check, or the review of a test result are typical QC activities. QC discovers and corrects deficiencies where they become visible in the result, and is embedded in operational service delivery.<\/p>\n<p>QA, on the other hand, evaluates the suitability of the framework in which such results are generated and controlled. It asks, for example, whether the QC process is adequately defined, qualified, documented, and effectively monitored. QA can review audit evidence for a QC process, but it is not the routine secondary review of every individual result. Both functions are components of a quality management system and complement each other, but remain distinct in purpose and focus.<\/p>\n<p>QA sets priorities not based on volume alone, but based on risk. ICH Q9 requires evaluating quality risks scientifically and adapting the effort, formality, and documentation to the level of risk. For clinical trials, ICH E6(R3) requires prospectively identifying quality-critical factors and managing risks to participant protection and reliability of results. Audit plans and oversight can therefore be risk-based.<\/p>\n<p>A quality tolerance limit is not a substitute for QA here. At the trial level, it can indicate when a systemic evaluation becomes necessary. QA assesses whether the entire quality management and the processes reacting to it are functioning. Monitoring or risk-based monitoring, in contrast, checks specific investigator sites, data, and processes in study operations.<\/p>\n<p>QA also evaluates the feedback from operational activities. If similar errors become visible in different studies, sites, or systems, quality assurance examines whether the root cause extends beyond the individual case and whether processes must be adjusted. It can derive quality risks and audit priorities from metrics, complaint data, deviations, or performance data of service providers. This perspective prevents problems from being corrected exclusively locally. At the same time, QA must base its evaluations on traceable criteria and leave the responsibility for operational correction with the responsible functions. Only in this way do the independent oversight and the effectiveness of the improvements remain verifiable.<\/p>\n<p>QA documents audit criteria, findings, risk assessments, and the tracking of CAPA so that the independent assessment of the quality system remains verifiable. The records must reveal whether systemic risks have been addressed, measures effectively verified, and open quality questions escalated to management.<\/p>\n<h2>Relevance for clinical trials<\/h2>\n<p>In clinical trials, QA makes the quality systems of the sponsor and its service providers auditable. It connects protocol and GCP requirements with training, document control, supplier management, and escalation pathways. Inspections frequently focus on the traceability of this system: have risks been identified, decisions reasoned, and measures tracked through to the effectiveness check?<\/p>\n<p>Full-service CROs such as Mediconomics provide support through audit planning and conduct, maintenance of quality-relevant SOPs, supplier evaluations, CAPA tracking, and inspection preparation. They can coordinate the QA perspective with monitoring, data management, pharmacovigilance, and project management without assuming the sponsor&#8217;s responsibility for suitable quality assurance.<\/p>\n<h2>Frequently Asked Questions (FAQ)<\/h2>\n<p><strong>Does QA check all study data individually?<\/strong><\/p>\n<p>No. The routine check of specific results typically belongs to QC. QA primarily assesses the system of processes and controls.<\/p>\n<p><strong>Is an audit finding automatically a CAPA?<\/strong><\/p>\n<p>No. The finding is evaluated on a risk basis. A CAPA may be necessary if a root cause analysis and systemic measures are required.<\/p>\n<p><strong>Can QA work on a risk basis?<\/strong><\/p>\n<p>Yes. The extent of oversight, auditing, and documentation should correspond to the risk and the importance for quality, safety, and data reliability.<\/p>\n<h2>Regulatory references<\/h2>\n<ul>\n<li>ICH Q10 Pharmaceutical Quality System \u2013 describes management responsibility and quality system elements.<\/li>\n<li>ICH Q9 Quality Risk Management \u2013 justifies the risk-proportionate prioritization of quality activities.<\/li>\n<li>ICH E6(R3) Good Clinical Practice \u2013 requires QA and QC processes throughout the course of the study.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Quality Assurance, QA for short, encompasses planned and systematic activities intended to build confidence that processes and results fulfill predefined quality requirements. In regulated environments, QA is system-related and preventive: it assesses whether the quality management system, its procedures, and its oversight are functioning suitably. Task and independent perspective QA creates the preconditions so that [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"parent":0,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"glossary-cat":[],"class_list":["post-6657","glossary","type-glossary","status-publish","hentry"],"acf":[],"related_terms":"","external_url":"","internal_reference_id":"","_links":{"self":[{"href":"https:\/\/mediconomics.com\/en\/wp-json\/wp\/v2\/glossary\/6657","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mediconomics.com\/en\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/mediconomics.com\/en\/wp-json\/wp\/v2\/types\/glossary"}],"author":[{"embeddable":true,"href":"https:\/\/mediconomics.com\/en\/wp-json\/wp\/v2\/users\/10"}],"version-history":[{"count":1,"href":"https:\/\/mediconomics.com\/en\/wp-json\/wp\/v2\/glossary\/6657\/revisions"}],"predecessor-version":[{"id":7479,"href":"https:\/\/mediconomics.com\/en\/wp-json\/wp\/v2\/glossary\/6657\/revisions\/7479"}],"wp:attachment":[{"href":"https:\/\/mediconomics.com\/en\/wp-json\/wp\/v2\/media?parent=6657"}],"wp:term":[{"taxonomy":"glossary-cat","embeddable":true,"href":"https:\/\/mediconomics.com\/en\/wp-json\/wp\/v2\/glossary-cat?post=6657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}