What is IRT / RTSM in clinical trials?

Interactive Response Technology (IRT) and Randomisation and Trial Supply Management (RTSM) systems manage patient randomisation, drug supply chain logistics, and treatment assignment in clinical trials. They ensure blinded allocation and timely drug supply across study sites.

How do I choose an IRT / RTSM vendor?

Key factors include integration with your EDC and CTMS, support for complex randomisation designs (adaptive, stratified, covariate-adjusted), supply chain forecasting capabilities, 24/7 support for global trials, and regulatory compliance (21 CFR Part 11, EU Annex 11). Use CVC to compare vendors side by side.

What IRT / RTSM vendors are available?

Clinical Vendor Compare lists 10+ IRT / RTSM vendors including established providers like Bracket, Suvoda, and Cenduit, alongside newer cloud-native platforms. Browse the full directory to compare capabilities, reviews, and pricing.

Best IRT / RTSM Vendors for Clinical Trials (2026)

Published 27 May 2026 · Clinical Vendor Compare editorial team

Interactive Response Technology (IRT) and Randomisation & Trial Supply Management (RTSM) systems are critical infrastructure for modern clinical trials. They manage treatment randomisation, drug supply logistics, and unblinding procedures — directly affecting trial integrity and patient safety.

What to Look for in an IRT / RTSM Vendor

Randomisation flexibility: Support for adaptive, stratified, block, covariate-adjusted, and response-adaptive designs
Supply chain management: Automated forecasting, depot management, and temperature-controlled shipment tracking
Integration: Seamless connections with EDC, CTMS, eTMF, and pharmacovigilance systems
Regulatory compliance: 21 CFR Part 11, EU Annex 11, ICH-GCP audit trails
Global support: 24/7 help desk, multi-language capabilities, and region-specific regulatory knowledge
Speed of setup: Time from protocol finalisation to system go-live

Key Capabilities to Compare

When evaluating IRT / RTSM vendors on Clinical Vendor Compare, pay attention to these differentiators:

Cloud-native vs legacy architecture — affects deployment speed and scalability
Real-time supply visibility vs batch-updated inventory
Emergency unblinding procedures and audit trail robustness
Support for platform trials, basket studies, and umbrella designs
API maturity for connecting to sponsor data ecosystems

Find Your IRT / RTSM Vendor

Use our directory to browse and compare 10+ IRT / RTSM vendors with structured reviews from clinical operations professionals. Filter by geography, trial scale, and therapeutic area.

Browse IRT / RTSM Vendors

Frequently Asked Questions

What is the difference between IRT and RTSM?

IRT (Interactive Response Technology) is the broader category encompassing IVRS (Interactive Voice Response Systems) and IWRS (Interactive Web Response Systems). RTSM (Randomisation and Trial Supply Management) is a newer term that emphasises the supply chain management component alongside randomisation. In practice, modern systems handle both functions, and the terms are often used interchangeably.

How long does IRT / RTSM setup take?

Setup timelines vary from 4–6 weeks for standard designs to 12+ weeks for complex adaptive trials with custom supply algorithms. Cloud-native vendors typically offer faster deployment than legacy systems requiring on-premise configuration.

Can IRT / RTSM support adaptive trial designs?

Yes. Modern IRT / RTSM platforms support a range of adaptive designs including dose escalation, sample size re-estimation, drop-the-loser, and biomarker-stratified randomisation. Evaluate vendors based on their specific adaptive design experience and case studies.