CASE STUDY: Accelerated Interim Analysis in a Phase II ALS Trial
Executive Summary
How Stiris delivered a rapid operational response to meet an accelerated interim analysis in a Phase II Amyotrophic Lateral Sclerosis (ALS) study, without compromising data quality.
Therapeutic area: Neurology
Indication: Amyotrophic Lateral Sclerosis (ALS)
Location: Canada (2 clinical sites)
Challenge: The study team faced an accelerated interim analysis timeline, creating significant operational pressure to complete critical activities, including data cleaning, query resolution, and monitoring, within a compressed timeframe.
Outcome: Stiris successfully delivered a data-ready interim analysis on the accelerated timeline, enabling the sponsor to meet key study milestones without compromising data quality, regulatory compliance, or study integrity.
Challenge
Stiris was engaged to manage two Canadian sites participating in a global Phase II, ALS study.
Midway through the trial, the sponsor accelerated the timing of the planned interim analysis, requiring study data to be review-ready on a compressed timeline. This shift introduced significant operational complexity, requiring critical activities, including data cleaning, query resolution, source data verification, monitoring, and cross-functional study coordination, to be completed ahead of schedule without compromising data quality or regulatory compliance.
With limited time available, success depended on rapid alignment across study management, clinical monitoring, data management, and site personnel. Maintaining data integrity while accelerating deliverables requires a proactive, high-touch approach and the operational agility to adapt to evolving study priorities quickly.
Solution
Leveraging its agile operating model. The Stiris team rapidly mobilized key functional teams and partnered closely with sites to execute critical study activities within the compressed timeframe while maintaining the high standards of quality and oversight expected for an interim analysis.
- Rapid operational response. Project management and monitoring teams achieved immediate alignment, prioritizing all activities critical to the interim analysis.
- Cross-functional coordination. Close collaboration between project managers, CRAs, and site teams enabled synchronized execution of data cleaning, monitoring, and query resolution.
- Site relationships and collaboration. Ongoing communication with the two Canadian sites enabled faster query resolution, flexibility in scheduling visits and follow-ups, and greater agility in clarifying data.
- Focus on data readiness. Data quality activities were prioritized to ensure information was complete, accurate, and ready for analysis within the new timeline.
Results
Through proactive planning, cross-functional coordination, and close site engagement, Stiris delivered all required operational, monitoring, and data management activities on schedule, ensuring the sponsor received high-quality, review-ready data within the required timeframe.
- Interim analysis preparation completed within the accelerated timeline.
- Data cleaning and query resolution finalized on time.
- Data quality and study integrity maintained without compromise.
- Smooth coordination sustained between both Canadian clinical sites.
- Sponsor confidence maintained through a critical milestone.
Impact for the Sponsor
Stiris enabled the sponsor to accelerate a key clinical development milestone, delivering review-ready data ahead of schedule while maintaining data quality, study integrity, and regulatory compliance. The result was earlier access to critical study insights to support timely program decisions.
Key Takeaways
- Interim analyses require highly coordinated, data-driven operational execution.
- The speed with which project, monitoring, and site teams align makes the difference when timelines are compressed.
- Strong site relationships allow for greater flexibility and faster response.
- Data quality cannot be compromised, even under time pressure.
- Operational agility is a key differentiator in complex global clinical trials.
Planning a Time-Critical Clinical Milestone?
Time-sensitive milestones, such as interim analyses, require precision, agility, and seamless coordination between teams. Stiris Research supports sponsors in executing complex clinical operations under accelerated timelines, without losing sight of data integrity or regulatory compliance.
Reach out to us at info@stirisresearch.com to discuss your next study.