Analysis Data Model · CDISC

ADaM for Clinical, analysis-ready and traceable

ADaM is the CDISC exchange standard that holds as-collected patient data in a form consistent with the Statistical Analysis Plan. Xbiom™ MDR and Smart Transformer generate compliant SDTM and ADaM datasets with the consistency, reliability and traceability submissions require.

ADSL, BDS and OCCDS generated  ·  define.xml, Reviewer’s Guide and validation rules included
PCX-318 · UDM → ADaM SMART TRANSFORMER
Generate ADaM
from the matured Data Services Layer
Analysis-ready
Implementation Guide
ADaMIG v1.3
Controlled Terminology
CT 2025-03
ADSL
ADAE
ADLB
ADVS
ADEX
ADTTE
5 / 6 datasets generated validated with eDataValidator
Traced to
SDTM & source
3
Standardized structures: ADSL, BDS and OCCDS
FDA·PMDA
Endorsed by regulators for submission requirements
define.xml
Plus Reviewer’s Guide and ADaM validation rules generated
Traceable
Direct links from ADaM to SDTM and source data
Why ADaM

Analysis is a necessary step. ADaM makes it reproducible.

Analysis of clinical trials assesses the efficacy and safety of novel therapeutics. ADaM holds the as-collected patient data in a manner consistent with the rules set out in the Statistical Analysis Plan, playing a pivotal role in statistical analyses, regulatory submissions and reproducible research.

01 / KEY FEATURE

Analysis-ready datasets

ADaM structures as-collected SDTM data into an analysis-ready form, so statistical models, efficacy evaluations and safety analyses run seamlessly. Flags make it easy to run analysis scripts.

02 / KEY FEATURE

Traceability end to end

ADaM datasets link directly to the SDTM datasets and source data, giving a clear audit trail for regulatory compliance and reproducibility.

04 / KEY FEATURE

Regulatory compliance

ADaM is endorsed by regulatory agencies including the FDA in the United States and the PMDA in Japan, keeping data compatible with submission requirements.

03 / KEY FEATURE

A standardized structure

ADaM provides a consistent framework across three dataset structures, so reviewers and statisticians always know where to look.

ADSL
Subject-Level Analysis Dataset: demographics and treatment
BDS
Basic Data Structure: longitudinal and time-to-event
OCCDS
Occurrence Data Structure: event-based data such as AEs
Standardized structure

Three structures, one analysis framework

ADaM organizes analysis data into a small, well-defined set of structures, keeping the number of analysis datasets to the optimum needed to perform the planned analyses.

ADSL

Subject-Level Analysis Dataset

One record per subject. Holds the demographic and treatment information that anchors every other analysis dataset.

DemographicsTreatmentOne per subject
BDS

Basic Data Structure

Supports longitudinal and time-to-event analyses, with the parameter and analysis values needed for statistical models.

LongitudinalTime-to-event
OCCDS

Occurrence Data Structure

Handles event-based data such as adverse events, concomitant medications and medical history.

Adverse eventsEvent-based
How Xbiom generates ADaM

From a curated repository to submission-ready ADaM

Analysis datasets are stored in the repository, the Universal Data Model, which is matured into a Data Services Layer of view-ready research data, complete with the metadata that records imputation, end-point derivations and cohort selections.

01

Curate in the UDM

As-collected data is curated and stored in the Universal Data Model, the repository behind the analysis datasets.

02

Mature to the Data Services Layer

The UDM matures into view-ready research data, with metadata for imputation, end-point derivations and cohort selections.

03

Transform to SDTM and ADaM

Xbiom™ MDR and Smart Transformer generate compliant SDTM and ADaM with your selected IG and Controlled Terminology.

04

Generate artifacts and validate

define.xml, Reviewer’s Guide and ADaM validation rules are produced, then checked with the onboard eDataValidator.

Validated & submission-ready

Submission artifacts, validated as you build

As part of the regulatory submission package, Xbiom™ MDR and Smart Transformer also generate the ADaM artifacts: define.xml, the Reviewer’s Guide and ADaM validation rules for CDISC, FDA and PMDA. With the onboard eDataValidator and intelligent automation, Xbiom™ validates the SDTM or ADaM data product across a number of validation cycles to ensure data quality throughout standardization.

CDISC FDA PMDA
Submission artifactsgenerated
XMLdefine.xmlgenerated
RGReviewer’s Guidegenerated
RULEADaM validation rulesCDISC/FDA/PMDA
eDVeDataValidator cyclesin Xbiom
FAQ

ADaM for clinical, answered

What is the Analysis Data Model (ADaM)?+
ADaM is an exchange standard within the CDISC standards, designed to hold the as-collected data from patients in a manner consistent with the rules specified in the Statistical Analysis Plan. ADaM datasets facilitate statistical analyses, regulatory submissions and reproducible research in clinical trials.
What is the difference between ADSL, BDS and OCCDS?+
ADSL is the Subject-Level Analysis Dataset and contains demographic and treatment information. BDS, the Basic Data Structure, supports longitudinal and time-to-event analyses. OCCDS, the Occurrence Data Structure, handles event-based data such as adverse events.
How does ADaM provide traceability?+
ADaM datasets link directly to the SDTM datasets and source data. This gives a clear audit trail for regulatory compliance and reproducibility, so an analysis result can be traced back to its origin.
Which regulators accept ADaM?+
ADaM is endorsed by regulatory agencies such as the FDA in the United States and the PMDA in Japan, ensuring compatibility with submission requirements.
How does Xbiom generate ADaM?+
Analysis datasets are stored in the repository, the Universal Data Model, which matures into a Data Services Layer of view-ready research data with metadata for imputation, end-point derivations and cohort selections. From there, Xbiom MDR and Smart Transformer generate compliant SDTM and ADaM that ensure data consistency, reliability and traceability.
How is the ADaM data validated?+
Xbiom MDR and Smart Transformer generate the ADaM artifacts define.xml, the Reviewer’s Guide and ADaM validation rules for CDISC, FDA and PMDA. With the onboard eDataValidator and intelligent automation, Xbiom validates the SDTM or ADaM data product across a number of validation cycles to ensure data quality throughout the standardization process.

Turn curated study data into submission-ready ADaM

Mature your repository into a Data Services Layer, then generate compliant SDTM and ADaM with define.xml, a Reviewer’s Guide and validation rules, all validated with eDataValidator. See Xbiom™ MDR and Smart Transformer in action.