Documents research adverse events with causality assessment and regulatory reporting timelines. Use when reporting research AEs, assessing causality, or managing safety reporting.
Adverse event (AE) reporting is a non-negotiable regulatory obligation in clinical research. Failure to report serious and unexpected adverse events within mandated timelines violates 21 CFR 312.32 (IND Safety Reporting), ICH-GCP E6(R2) Section 4.11, and can trigger FDA clinical holds, site termination, or participant harm. This skill provides the complete AE identification, documentation, causality assessment, and reporting workflow so that every safety event is captured accurately and reported within regulatory deadlines.
Checkpoint A — Intake and Scoping
Required Intake Questions
Is this an IND study (FDA-regulated) or non-IND research?
What is the sponsor type (industry, investigator-initiated, cooperative group)?
What is the current MedDRA version for coding (e.g., MedDRA v26.1)?
What severity-grading scale is specified in the protocol (CTCAE v5.0, WHO, or investigator judgment of mild/moderate/severe)?
What is the protocol-defined AE collection period (from first dose through follow-up window)?
Are there solicited AEs (protocol-specified events collected at defined intervals)?
Does the protocol define any events of special interest (AESI)?
Who is the sponsor safety-reporting contact and what is the reporting mechanism (safety database, fax, email)?
Is there a DSMB or safety monitoring committee reviewing AEs?
What are the IRB reporting requirements for unanticipated problems (institutional SOP)?
Required Source Documents
Protocol (safety reporting section and AE definitions)
Investigator's Brochure (reference safety information / expected AE list)
SAE reporting forms (sponsor-specific or CIOMS-I form)
MedDRA coding dictionary (current version)
CTCAE grading tables (if applicable)
Site SOPs for AE documentation and reporting
DSMB charter (if applicable)
Delegation of Authority Log (who can assess AEs)
Step 1 — Identify and Capture Adverse Events
Define the AE identification process:
Definitions (per ICH-GCP E6(R2) 1.2)
Adverse Event (AE): Any untoward medical occurrence in a participant, whether or not considered related to the investigational product
Serious Adverse Event (SAE): Any AE that results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, or is an important medical event that may jeopardize the participant and require intervention
Adverse Drug Reaction (ADR): An AE with at least a reasonable possibility of causal relationship to the investigational product
Suspected Unexpected Serious Adverse Reaction (SUSAR): An ADR that is both serious and not consistent with the applicable product information (IB for investigational products)
Collection Methods
Spontaneous reporting: Ask open-ended questions at each visit ("How have you been feeling since your last visit?") — never ask leading questions about specific symptoms unless they are solicited per protocol
Solicited events: Protocol-specified AEs (e.g., injection-site reactions) collected via diaries, ePRO, or structured assessments at defined timepoints
Laboratory/diagnostic AE detection: Clinically significant abnormal lab values, ECG findings, or imaging results that the investigator determines are AEs
Inter-visit reporting: Define how participants report events between visits (24-hour call line, electronic diary, email to coordinator)
Step 2 — Document Adverse Events Completely
For each AE, capture all required data elements per ICH-GCP and 21 CFR 312.32:
Event term: Verbatim description as reported by investigator (coded to MedDRA Preferred Term and mapped to System Organ Class)
Onset date: Date and time (if available) of first occurrence
Resolution date: Date resolved or "ongoing" at last assessment
Severity/grade: CTCAE grade (1–5) or mild/moderate/severe/life-threatening/fatal per protocol
Seriousness criteria: Check all that apply (death, life-threatening, hospitalization, disability, congenital anomaly, important medical event)
Causality assessment: Investigator's assessment of relationship to study drug (see Step 3)
Action taken with study drug: None, dose reduced, drug interrupted, drug discontinued, not applicable
Outcome: Recovered/resolved, recovering/resolving, not recovered/not resolved, recovered with sequelae, fatal, unknown
Treatment given: Yes/No; if yes, describe concomitant medications or procedures
Expectedness: Expected (listed in IB) or unexpected per reference safety information
Step 3 — Assess Causality
Apply the protocol-specified causality assessment method:
WHO-UMC System
Certain: Plausible time relationship, cannot be explained by disease or other drugs, response to withdrawal clinically plausible, rechallenge positive
Probable/Likely: Reasonable time relationship, unlikely disease or other drugs, clinically reasonable response to withdrawal
Possible: Reasonable time relationship, could also be explained by disease or other drugs
Unlikely: Improbable time relationship, disease or other drugs provide plausible explanation
Conditional/Unclassified: Event reported but more data needed for assessment
Unassessable/Unclassifiable: Insufficient or contradictory information
Naranjo Algorithm (alternative)
10-question standardized assessment yielding a score: definite (≥9), probable (5-8), possible (1-4), doubtful (≤0)
The investigator must make the causality determination — sponsors may query but cannot downgrade the investigator's assessment.
Step 4 — Apply Regulatory Reporting Timelines
Report within the mandated deadlines based on event classification:
IND Safety Reports to FDA (21 CFR 312.32)
Event Type
Timeline
Form
Fatal or life-threatening SUSAR
7 calendar days (initial) + 8 days (follow-up)
IND Safety Report / MedWatch 3500A
All other SUSARs
15 calendar days
IND Safety Report / MedWatch 3500A
Aggregate safety findings (increased rate of expected SAEs)
15 calendar days
IND Safety Report
Sponsor to Investigator Notification
SUSARs must be communicated to all investigators and IRBs promptly per ICH-GCP 5.17
Investigator to IRB Reporting
Unanticipated problems involving risk to participants or others: per institutional policy (typically within 5–10 business days)
Deaths and life-threatening events: often within 24–48 hours per local SOP
No SAE narratives contain speculative causality language
Dechallenge/rechallenge information is documented where applicable
AE collection period aligns with protocol-defined windows
All [VERIFY] flags have been resolved or escalated
Guidelines
Never delay SAE reporting to gather additional information — submit the initial report within the timeline with available data and follow up
The investigator's causality assessment is the final determination — sponsors may disagree but cannot override it
Do not code multiple verbatim terms to the same MedDRA PT without clinical justification for combining
Severity (CTCAE grade) and seriousness (SAE criteria) are distinct concepts — a grade 3 AE is not automatically an SAE
All AEs occurring during the protocol-defined collection period must be captured, including those considered unrelated
Pre-existing conditions should be captured as AEs only if they worsen during the study
Pregnancy is not an AE but must be reported; pregnancy outcomes (spontaneous abortion, congenital anomaly) are reportable events
For blinded studies, expedited unblinding may be required for SUSAR reporting — follow protocol and sponsor procedures
Mark any causality assessment that is ambiguous or contested with [VERIFY] for medical-monitor review
This skill produces AE documentation — clinical assessment of individual cases requires a qualified physician investigator
1---2name: managing-adverse-event-reporting-research3description: Documents research adverse events with causality assessment and regulatory reporting timelines. Use when reporting research AEs, assessing causality, or managing safety reporting.4tags:5 - management6 - clinical-research7 - regulatory8 - research9metadata:10 author: casemark11 practice_areas:12 - Clinical Research13 - Biostatistics14 - Regulatory Affairs15 document_types:16 - Management Report17 skill_modes:18 - Management19 - Coordination20---2122# Managing Adverse Event Reporting in Research2324## Why This Skill Exists2526Adverse event (AE) reporting is a non-negotiable regulatory obligation in clinical research. Failure to report serious and unexpected adverse events within mandated timelines violates 21 CFR 312.32 (IND Safety Reporting), ICH-GCP E6(R2) Section 4.11, and can trigger FDA clinical holds, site termination, or participant harm. This skill provides the complete AE identification, documentation, causality assessment, and reporting workflow so that every safety event is captured accurately and reported within regulatory deadlines.2728---2930## Checkpoint A — Intake and Scoping3132### Required Intake Questions331. Is this an IND study (FDA-regulated) or non-IND research?342. What is the sponsor type (industry, investigator-initiated, cooperative group)?353. What is the current MedDRA version for coding (e.g., MedDRA v26.1)?364. What severity-grading scale is specified in the protocol (CTCAE v5.0, WHO, or investigator judgment of mild/moderate/severe)?375. What is the protocol-defined AE collection period (from first dose through follow-up window)?386. Are there solicited AEs (protocol-specified events collected at defined intervals)?397. Does the protocol define any events of special interest (AESI)?408. Who is the sponsor safety-reporting contact and what is the reporting mechanism (safety database, fax, email)?419. Is there a DSMB or safety monitoring committee reviewing AEs?4210. What are the IRB reporting requirements for unanticipated problems (institutional SOP)?4344### Required Source Documents45- Protocol (safety reporting section and AE definitions)46- Investigator's Brochure (reference safety information / expected AE list)47- SAE reporting forms (sponsor-specific or CIOMS-I form)48- MedDRA coding dictionary (current version)49- CTCAE grading tables (if applicable)50- Site SOPs for AE documentation and reporting51- DSMB charter (if applicable)52- Delegation of Authority Log (who can assess AEs)5354---5556## Step 1 — Identify and Capture Adverse Events5758Define the AE identification process:5960### Definitions (per ICH-GCP E6(R2) 1.2)61- **Adverse Event (AE)**: Any untoward medical occurrence in a participant, whether or not considered related to the investigational product62- **Serious Adverse Event (SAE)**: Any AE that results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, or is an important medical event that may jeopardize the participant and require intervention63- **Adverse Drug Reaction (ADR)**: An AE with at least a reasonable possibility of causal relationship to the investigational product64- **Suspected Unexpected Serious Adverse Reaction (SUSAR)**: An ADR that is both serious and not consistent with the applicable product information (IB for investigational products)6566### Collection Methods671. **Spontaneous reporting**: Ask open-ended questions at each visit ("How have you been feeling since your last visit?") — never ask leading questions about specific symptoms unless they are solicited per protocol682. **Solicited events**: Protocol-specified AEs (e.g., injection-site reactions) collected via diaries, ePRO, or structured assessments at defined timepoints693. **Laboratory/diagnostic AE detection**: Clinically significant abnormal lab values, ECG findings, or imaging results that the investigator determines are AEs704. **Inter-visit reporting**: Define how participants report events between visits (24-hour call line, electronic diary, email to coordinator)7172---7374## Step 2 — Document Adverse Events Completely7576For each AE, capture all required data elements per ICH-GCP and 21 CFR 312.32:77781. **Event term**: Verbatim description as reported by investigator (coded to MedDRA Preferred Term and mapped to System Organ Class)792. **Onset date**: Date and time (if available) of first occurrence803. **Resolution date**: Date resolved or "ongoing" at last assessment814. **Severity/grade**: CTCAE grade (1–5) or mild/moderate/severe/life-threatening/fatal per protocol825. **Seriousness criteria**: Check all that apply (death, life-threatening, hospitalization, disability, congenital anomaly, important medical event)836. **Causality assessment**: Investigator's assessment of relationship to study drug (see Step 3)847. **Action taken with study drug**: None, dose reduced, drug interrupted, drug discontinued, not applicable858. **Outcome**: Recovered/resolved, recovering/resolving, not recovered/not resolved, recovered with sequelae, fatal, unknown869. **Treatment given**: Yes/No; if yes, describe concomitant medications or procedures8710. **Expectedness**: Expected (listed in IB) or unexpected per reference safety information8889---9091## Step 3 — Assess Causality9293Apply the protocol-specified causality assessment method:9495### WHO-UMC System96- **Certain**: Plausible time relationship, cannot be explained by disease or other drugs, response to withdrawal clinically plausible, rechallenge positive97- **Probable/Likely**: Reasonable time relationship, unlikely disease or other drugs, clinically reasonable response to withdrawal98- **Possible**: Reasonable time relationship, could also be explained by disease or other drugs99- **Unlikely**: Improbable time relationship, disease or other drugs provide plausible explanation100- **Conditional/Unclassified**: Event reported but more data needed for assessment101- **Unassessable/Unclassifiable**: Insufficient or contradictory information102103### Naranjo Algorithm (alternative)104- 10-question standardized assessment yielding a score: definite (≥9), probable (5-8), possible (1-4), doubtful (≤0)105106The investigator must make the causality determination — sponsors may query but cannot downgrade the investigator's assessment.107108---109110## Step 4 — Apply Regulatory Reporting Timelines111112Report within the mandated deadlines based on event classification:113114### IND Safety Reports to FDA (21 CFR 312.32)115| Event Type | Timeline | Form |116|------------|----------|------|117| Fatal or life-threatening SUSAR | 7 calendar days (initial) + 8 days (follow-up) | IND Safety Report / MedWatch 3500A |118| All other SUSARs | 15 calendar days | IND Safety Report / MedWatch 3500A |119| Aggregate safety findings (increased rate of expected SAEs) | 15 calendar days | IND Safety Report |120121### Sponsor to Investigator Notification122- SUSARs must be communicated to all investigators and IRBs promptly per ICH-GCP 5.17123124### Investigator to IRB Reporting125- Unanticipated problems involving risk to participants or others: per institutional policy (typically within 5–10 business days)126- Deaths and life-threatening events: often within 24–48 hours per local SOP127- Annual/continuing review: aggregate safety summary128129### EMA Requirements (if applicable)130- Fatal/life-threatening SUSARs: 7 days + 8 days follow-up via EudraVigilance131- All other SUSARs: 15 days via EudraVigilance132- Annual Safety Report (DSUR) per ICH E2F133134---135136## Step 5 — Process SAE Narratives137138Write clinical narratives for all SAEs using the CIOMS format:1391401. **Opening sentence**: Age, sex, relevant medical history, study arm (blinded or unblinded as appropriate), event term1412. **Clinical course**: Chronological description — date of onset, presenting symptoms, diagnostic workup, treatments administered, hospitalization details (admission/discharge dates)1423. **Outcome**: Resolution, sequelae, or death with cause1434. **Investigator's causality assessment**: Stated with rationale1445. **Dechallenge/Rechallenge**: Document response to stopping and (if applicable) restarting study drug1456. **Concomitant medications**: List all with start/stop dates1467. **Assessment of expectedness**: Reference specific section of IB147148Narratives should be factual, concise (typically 200-500 words), and avoid speculative language.149150---151152## Step 6 — Maintain the Safety Database153154Ensure ongoing data integrity in the safety database:1551561. **Coding**: All AEs coded to MedDRA (PT and SOC) by qualified medical coders; coding changes require documentation1572. **Duplicate detection**: Implement algorithms to identify duplicate reports (same participant, same event, reported by different sources)1583. **Follow-up**: Track all open SAEs; request follow-up information from sites at defined intervals; document all attempts to obtain missing information1594. **Reconciliation**: Reconcile AE database with clinical database entries at least quarterly and before database lock1605. **Line listings**: Maintain current SAE line listings for DSMB review and regulatory queries161162---163164## Checkpoint B — AE Reporting Review1651661. [ ] All SAEs have been reported within mandated timelines (7/15 days)1672. [ ] Causality assessments are documented for every AE1683. [ ] MedDRA coding is consistent and uses the correct dictionary version1694. [ ] SAE narratives are complete, factual, and include all CIOMS elements1705. [ ] Expectedness determination references the current IB version1716. [ ] IRB notifications have been filed for all unanticipated problems1727. [ ] DSMB has received updated safety data per charter schedule1738. [ ] Safety database is reconciled with clinical database1749. [ ] All follow-up reports for unresolved SAEs are current17510. [ ] Sponsor safety contact has confirmed receipt of all IND Safety Reports176177---178179## Quality Audit180181- [ ] No SAE report exceeded the 7-day or 15-day reporting deadline182- [ ] All AEs have onset date, severity, causality, outcome, and seriousness documented183- [ ] MedDRA version is consistent across all coded events184- [ ] CTCAE grading is applied correctly (grade 3 = severe, grade 4 = life-threatening, grade 5 = death)185- [ ] No SAE narratives contain speculative causality language186- [ ] Dechallenge/rechallenge information is documented where applicable187- [ ] AE collection period aligns with protocol-defined windows188- [ ] All [VERIFY] flags have been resolved or escalated189190---191192## Guidelines1931941. Never delay SAE reporting to gather additional information — submit the initial report within the timeline with available data and follow up1952. The investigator's causality assessment is the final determination — sponsors may disagree but cannot override it1963. Do not code multiple verbatim terms to the same MedDRA PT without clinical justification for combining1974. Severity (CTCAE grade) and seriousness (SAE criteria) are distinct concepts — a grade 3 AE is not automatically an SAE1985. All AEs occurring during the protocol-defined collection period must be captured, including those considered unrelated1996. Pre-existing conditions should be captured as AEs only if they worsen during the study2007. Pregnancy is not an AE but must be reported; pregnancy outcomes (spontaneous abortion, congenital anomaly) are reportable events2018. For blinded studies, expedited unblinding may be required for SUSAR reporting — follow protocol and sponsor procedures2029. Mark any causality assessment that is ambiguous or contested with [VERIFY] for medical-monitor review20310. This skill produces AE documentation — clinical assessment of individual cases requires a qualified physician investigator
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Documents research adverse events with causality assessment and regulatory reporting timelines. Use when reporting research AEs, assessing causality, or managing safety reporting. It is listed under Research & Search on SkillMD.
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