CASE 06
Medical Writing & Protocol Strategy for a European Cardiovascular Program
Integrated scientific, statistical and regulatory review before protocol finalization.
Case Overview
Why this case mattered
A European pharmaceutical sponsor asked TUNECT to review an interconnected cardiovascular development program before protocol finalization. The task combined Medical Writing, Biostatistics and regulatory reasoning rather than treating the protocol as a purely editorial document.
Multi-study review
linked designs assessed as one development program
Evidence-based
reference trials and regulatory guidance reviewed
Protocol-ready
recommendations structured for synopsis and protocol refinement
The Challenge
What TUNECT walked into
The proposed later-phase studies implied large sample sizes because clinically meaningful thromboembolic events were expected to be relatively infrequent. The Sponsor wanted to understand whether the program could be made more feasible without weakening the scientific question or creating a less defensible regulatory position.
Our Approach
How the project was handled
01
Program-level review
Reviewed linked study designs and sample-size assumptions together rather than assessing each protocol in isolation.
02
Evidence + guidance
Compared assumptions with pivotal reference trials and relevant European regulatory guidance, including endpoint and non-inferiority considerations.
03
Protocol strategy
Evaluated event-driven planning, blinded sample-size reassessment, longer follow-up and risk-enrichment options, and translated conclusions into protocol-ready recommendations.
Medical Writing is strongest when protocol language, statistical assumptions and regulatory rationale are developed together rather than handed off sequentially.
Outcome
What changed
Better design logic
The optimization discussion shifted away from simply weakening endpoints or margins.
Explicit assumptions
Key event-rate and sample-size assumptions were challenged and documented rather than carried forward untested.
Writing-ready output
Recommendations were structured so they could be incorporated into synopsis and protocol refinement.
Client, sponsor, and study identifiers are anonymized where needed.
Facing a similar challenge?
TUNECT can join as a project team, embedded FSP resource or independent specialist group depending on the study need.