FDA 21 CFR Part 11 & E-Signature Compliance Guides

Expert guides on FDA 21 CFR Part 11, ALCOA+ data integrity, GxP compliance, and electronic signature requirements for clinical trials, pharma, and life sciences.

Regulatory ComplianceLatest

LIMS Software and Part 11: Signature and Audit Trail Rules

LIMS software 21 CFR Part 11 requirements go beyond generic e-signature rules: 211.68 equipment controls, 211.194 instrument-data records, and Annex 11.

August 24, 202611 min read

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Regulatory Compliance

How Long to Keep GxP Records: Part 11 to EU CTR

Part 11 doesn't set a retention period, the predicate rule does. GMP, GLP, GCP/IND, and EU CTR 536/2014 retention periods compared, with direct citations.

August 10, 202613 min read

Regulatory Compliance

Part 11 E-Signatures for Pharmacovigilance

IND and postmarketing safety reports don't name a signature requirement, but Part 11 still applies. Why the PSUR requires one and the DSUR does not.

August 3, 20269 min read

Regulatory Compliance

Electronic Signatures for CDMOs: Part 11

Learn how Part 11 applies when sponsors and CDMOs share batch-record signatures, audit-trail review, release decisions, and quality agreements.

July 20, 20268 min read

Regulatory Compliance

CIOMS XIV AI Framework and Part 11 Attribution

CIOMS Working Group XIV's AI pharmacovigilance framework rests on principles Part 11 already regulates. How attribution and audit trails carry over.

July 13, 202610 min read

Clinical Trials

IRB Electronic Signature Requirements

IRB records fall under Part 11 the moment they go electronic. Approval letter signatures, continuing review timing, vote attribution, and common gaps.

July 7, 20268 min read

Regulatory Compliance

GMP Batch Release E-Signatures Under Part 11

Batch disposition is the highest-stakes signature event in GMP manufacturing. Here is the QA release sign-off workflow Part 11 and EU GMP Annex 11 both require.

June 30, 202612 min read

Clinical Trials

eTMF E-Signature Requirements Under Part 11

eTMF systems fall under FDA Part 11 because predicate rules require the TMF. Here are the four e-signature controls most often deficient in eTMF platforms.

June 29, 202613 min read

Regulatory Compliance

EU GMP Annex 22: AI Governance in GxP

EMA's EU GMP Annex 22 governs AI in GxP environments: audit trail attribution, algorithm versioning, and human oversight. Here's what it requires.

June 27, 202611 min read

Clinical Trials

Informed Consent E-Signatures Under Part 11

Electronic informed consent must satisfy 21 CFR Part 50 and Part 11. Audit trail requirements, re-consent workflows, IRB questions, and 3 common 483s.

June 22, 20269 min read

Regulatory Compliance

Part 11 Applicability and Predicate Rules

Part 11 applies only when a predicate rule requires a record kept electronically. Here is the two-part test and the three errors FDA inspectors find most.

June 21, 202611 min read

Regulatory Compliance

Annex 11 Clause 3 Supplier Qualification

Annex 11 Clause 3 requires formal supplier qualification before deploying an e-signature platform. The six elements and how to structure the report.

June 15, 202610 min read

Clinical Trials

ICH E6(R3) Remote Monitoring and E-Signatures

ICH E6(R3) recognizes remote monitoring as GCP-compliant, but Part 11 obligations for visit reports and delegation logs are unchanged. What applies.

June 15, 202613 min read

Certivo is Now Klyverity

Certivo is now Klyverity. Same company, same team, same FDA 21 CFR Part 11 platform. Your account, data, signed records, and agreements all carry over.

June 12, 20264 min read

Regulatory Compliance

Part 11 Audit Trail Review SOP

How often must Part 11 audit trails be reviewed, and what must the SOP say? Frequency by predicate rule, the six required SOP elements, and top FDA findings.

June 8, 202613 min read

Regulatory Compliance

21 CFR Part 11 vs EU GMP Annex 11

FDA Part 11 and EU GMP Annex 11 share a common foundation but diverge on audit trail scope, supplier qualification, and periodic review. Here is the comparison.

June 6, 202614 min read

Regulatory Compliance

21 CFR Part 11 Audit Trail Requirements

Part 11 Section 11.10(e) requires secure, time-stamped audit trails. Here are the seven data elements every entry must capture and the gaps inspectors find.

June 1, 202613 min read

Regulatory Compliance

Annex 11 2025 Draft: E-Signature MFA Changes

The EMA's 2025 Annex 11 draft makes MFA mandatory for GxP e-signatures. Covers Clause 12.1, expanded audit trail scope, and how it compares to Part 11.

May 23, 202612 min read

Regulatory Compliance

GxP Electronic Records: FDA, EMA and ICH Rules

GxP compliance spans four regulatory frameworks with different text and enforcement. Here's what Part 11, Annex 11, and ICH E6(R3) actually require.

May 20, 202614 min read

Clinical Trials

Clinical Trial E-Signature Responsibilities

Part 11 e-signature duties split three ways in a clinical trial. Here is exactly what sponsors, CROs, and site coordinators are each on the hook for.

May 18, 202614 min read

Regulatory Compliance

HIPAA and Part 11 Dual Compliance

Research sites must satisfy HIPAA and Part 11 at once. Covers BAAs, two-component authentication, signature meaning, and dual-compliance vendor selection.

May 11, 202612 min read

Clinical Trials

Part 11 for Small Clinical Research Sites

Small investigator sites face the same Part 11 obligations as large sponsors, with fewer resources. Here's the practical three-SOP framework.

May 9, 202611 min read

Regulatory Compliance

FDA Part 11 Non-Repudiation Letter Guide

FDA requires written certification that your electronic signatures are legally binding. Here is who must submit one, what it must say, and where.

May 6, 202611 min read

Regulatory Compliance

ALCOA++ Data Integrity: The Tenth Principle

ALCOA++ adds a tenth principle, Traceable, to ALCOA+. Learn what it requires for audit trail software and how to meet both FDA and EU expectations.

May 4, 202612 min read

Regulatory Compliance

Electronic Signature SOPs for FDA Part 11

Part 11 Section 11.10(j) requires written accountability policies. The six SOPs every Part 11 system needs, and what investigators check in an audit.

May 3, 202613 min read

Clinical Trials

Part 11 E-Signatures for CROs and Sponsors

CROs are named as regulated entities in FDA's 2024 guidance. Here's what the non-repudiation letter and delegation log requirements mean for you.

April 20, 202612 min read

Clinical Trials

Clinical Trial Document E-Signatures

E-signatures for trial documents under Part 11, ICH E6(R3), and the October 2024 FDA guidance: what to sign, delegation logs, and TMF retention.

April 13, 202613 min read

What Makes an E-Signature Platform FDA Compliant

Every vendor claims FDA compliance. What Part 11 Subparts B and C actually require technically, plus a 14-question checklist to run against any vendor.

April 10, 202615 min read

Regulatory Compliance

E-Signatures for Pharmaceutical QA

Batch record signatures, SOP approvals, deviation sign-off: what FDA 21 CFR Part 11 and Part 211 actually require for pharmaceutical QA electronic signatures.

April 10, 202614 min read

Regulatory Compliance

GxP Electronic Signature Requirements

GMP, GLP, and GCP all build on Part 11, but each adds its own e-signature obligations. Here is exactly where GCP, GLP, and GMP requirements diverge.

April 7, 202614 min read

Regulatory Compliance

Part 11 Electronic Records: Subpart B

What Subpart B of 21 CFR Part 11 requires for electronic records: validation, audit trails, access controls, retention, and the most common 483 failures.

April 6, 202612 min read

Regulatory Compliance

FDA Audit Trail Inspection Readiness Checklist

What FDA investigators actually request during an audit trail review, the most common 483 findings, and a practical pre-inspection checklist for 2026.

April 4, 202613 min read

Best E-Signature for Clinical Trials

8 requirements a clinical trial e-signature platform must meet, drawn from 21 CFR Part 11, the FDA 2024 final guidance, ICH E6(R3), and EU CTR 536/2014.

March 30, 202611 min read

Regulatory Compliance

ALCOA+ Audit Trail Software Requirements

ALCOA+ compliant audit trail software needs 8 core technical requirements. Here's what to check, from timestamping to the Traceable principle.

March 27, 202611 min read

Best Part 11 Compliant E-Signature Software

Most vendors claim 21 CFR Part 11 compliance. Few can prove it. Here are the 7 technical requirements that separate real compliance from marketing claims.

March 27, 202612 min read

Regulatory Compliance

Part 11 Electronic Signature Requirements

What 21 CFR Part 11 actually requires for electronic signatures, the most common compliance failures at research sites, and what FDA inspectors check in 2026.

March 23, 20269 min read

Electronic Signatures and GDPR Compliance

E-signature workflows process personal data under GDPR. Here's what Article 6, DPA requirements, and data subject rights mean for your platform.

March 16, 20269 min read

Regulatory Compliance

ALCOA+ Data Integrity: The 9 Principles

ALCOA+ violations appear in most FDA data integrity warning letters. What each of the 9 principles requires for electronic records and audit trails.

March 14, 202610 min read

Regulatory Compliance

Audit Trails in Regulated Industries

Audit trails are the most-cited category in Part 11 483 observations. Covers Section 11.10(e), Annex 11 Clause 9, hash chains, and the review gap.

March 13, 202610 min read

Clinical Trials

EU Clinical Trial Regulation 536/2014

EU CTR 536/2014 governs every EU clinical trial since 2025. Learn CTIS submission, 25-year retention, e-signature rules, and 2026 enforcement checkpoints.

March 12, 202611 min read

Part 11 as an Add-On vs Built Into the Platform

General-purpose e-signature vendors sell Part 11 as a paid module; purpose-built platforms embed it natively, with real differences in audit trails and cost.

March 11, 202611 min read

Validate an E-Signature System: IQ/OQ/PQ

How to validate an e-signature system with IQ/OQ/PQ under FDA's CSA guidance, including risk-based testing, Part 11 mapping, and qualification checklists.

March 11, 202612 min read

E-Signature Vendor Evaluation Checklist

40+ RFP questions for evaluating a Part 11 e-signature vendor, with a weighted scoring template for FDA, EU GMP Annex 11, and ALCOA+ requirements.

March 11, 202616 min read

Regulatory Compliance

FDA Warning Letters on Data Integrity

Data integrity issues drive 60-80% of FDA GMP warning letters. See real citations: shared logins, missing audit trails, backdated records, and outcomes.

March 11, 202613 min read

Clinical Trials

Decentralized Trials and eConsent E-Signatures

E-signature compliance for decentralized trials: the FDA's 2024 DCT guidance, eConsent practice, Part 11 and ICH E6(R3), and remote data integrity.

March 11, 202611 min read

Migrating to a Part 11 E-Signature Platform

Migrating to a Part 11 compliant e-signature platform takes structured change control. Here's the six-phase framework, from requirements to cutover.

March 11, 202612 min read

Regulatory Compliance

Medical Device E-Signatures: QMSR and EU MDR

The QMSR replaced the QSR in February 2026. How e-signatures work under QMSR, ISO 13485 design controls, EU MDR, and what now needs re-validation.

March 11, 202613 min read

Regulatory Compliance

AI and E-Signatures in Regulated Industries

AI in life sciences e-signature workflows: FDA AI guidance, EU AI Act high-risk classification, Part 11 implications, and a risk-based adoption framework.

March 11, 202613 min read

CSV vs CSA: Validation and Software Assurance

FDA's Computer Software Assurance guidance replaces traditional CSV with risk-based validation. How the two approaches compare for e-signature systems.

March 11, 202613 min read

Regulatory Compliance

EU GMP Annex 11: Computerized Systems Guide

EU GMP Annex 11's 2025 draft adds MFA at signing, wider audit trail scope, and new batch release documentation rules. Here is what changes and why.

March 11, 202613 min read

Choosing an E-Signature Platform: Life Sciences

Evaluating e-signature platforms for pharma and medical devices: Part 11 compliance, audit trails, 2FA, validation documents, red flags, and true cost.

March 10, 202611 min read

HIPAA-Compliant Electronic Signatures

HIPAA allows e-signatures on PHI, but only with a BAA, AES-256 encryption, audit controls, and MFA in place. Here is what the Security Rule actually requires.

March 6, 20269 min read

Regulatory Compliance

eIDAS vs ESIGN Act: Full Comparison

eIDAS 2.0 and the ESIGN Act compared: legal validity, SES/AES/QES tiers, cross-border recognition, and what multinational regulated teams must satisfy.

March 3, 20269 min read

Regulatory Compliance

GxP Compliance for Electronic Records

What GxP compliance actually requires for electronic records under GMP, GLP, GCP, and EU Annex 11, with ALCOA+ principles and validation basics explained.

February 28, 202610 min read

Clinical Trials

Electronic Signatures in Clinical Trials

FDA's 2024 guidance clarified e-signature rules for clinical trials: non-repudiation letters, hybrid records, cloud systems, risk-based validation.

February 25, 202614 min read

Regulatory Compliance

FDA 21 CFR Part 11: Compliance Guide

What FDA 21 CFR Part 11 actually requires for electronic records and signatures, explained in plain terms with real 483 examples and 2026 updates.

February 21, 202612 min read

Digital vs Electronic Signatures

Digital signatures use PKI to verify identity and detect tampering; electronic signatures are broader. When to use each in pharma and healthcare.

February 18, 20268 min read

What Are Electronic Signatures? Types and Law

Electronic signatures are legally binding under ESIGN and eIDAS, but not all carry equal weight. Here is how SES, AES, and QES differ.

February 15, 202610 min read

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