Designing integrated early-phase protocols to reduce substantial modifications, including considerations for patient cohorts – a multi-stakeholder consensus view for a practical approach in Germany

• Frequent substantial modifications for initiating new trial parts slow down development and reduce transparency. • Combining healthy volunteers and patients in a single early-phase trial raises safety, feasibility, and regulatory concerns. • A multi-stakeholder consensus in Germany identified regulatory pathways to enable seamless transitions within integrated protocols for non-ATMP (advanced therapy medicinal product), non-oncology trials. • The EMA FIH (first-in-human) guideline supports predefined transitions if scope, safety thresholds, and decision rules are clearly described. • The German guardrail concept clarifies when transitions do not require a substantial modification, enhancing planning certainty. • Actionable recommendations are provided on protocol design, decision criteria, and governance structures to enable early inclusion of patients without compromising safety or compliance. • First positive experience has been gained with the presented framework in Germany.

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Publication Details

Journal
Frontiers in Pharmacology
Published
2026-01-26
DOI
https://doi.org/10.3389/fphar.2025.1699906
Primary Topic
Health Systems, Economic Evaluations, Quality of Life
Type
article
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article

Designing integrated early-phase protocols to reduce substantial modifications, including considerations for patient cohorts – a multi-stakeholder consensus view for a practical approach in Germany

Claudia A. Riedel, Thomas Sudhop, Jens Rengelshausen, Barbara Schug et al.
Frontiers in Pharmacology
Health Systems, Economic Evaluations, Quality of Life
article

Designing integrated early-phase protocols to reduce substantial modifications, including considerations for patient cohorts – a multi-stakeholder consensus view for a practical approach in Germany

Claudia A. Riedel, Thomas Sudhop, Jens Rengelshausen, Barbara Schug, Ruwen Böhm, Andreas Bonertz, Robert Schultz-Heienbrok, N. Faisst, U. Buckpesch-Heberer, G. Grass, K. Erb-Zohar, J. Höchel, K. Breithaupt-Groegler, A. Warnke, A. Muehlenbroich, A. Kovar, M. Coenen, S. Baumann, B. Ziegele
article en

Abstract

• Frequent substantial modifications for initiating new trial parts slow down development and reduce transparency. • Combining healthy volunteers and patients in a single early-phase trial raises safety, feasibility, and regulatory concerns. • A multi-stakeholder consensus in Germany identified regulatory pathways to enable seamless transitions within integrated protocols for non-ATMP (advanced therapy medicinal product), non-oncology trials. • The EMA FIH (first-in-human) guideline supports predefined transitions if scope, safety thresholds, and decision rules are clearly described. • The German guardrail concept clarifies when transitions do not require a substantial modification, enhancing planning certainty. • Actionable recommendations are provided on protocol design, decision criteria, and governance structures to enable early inclusion of patients without compromising safety or compliance. • First positive experience has been gained with the presented framework in Germany.

Frontiers in PharmacologyVol. 16
Federal Institute for Drugs and Medical Devices (DE), University Hospital Bonn (DE), Specim (Finland) (FI), Novartis (China) (CN), Clinical Research Services (DE), SocraTec R&D (Germany) (DE), Pharmacology Research Institute (US), University Hospital Schleswig-Holstein (DE), Clinique Saint-Joseph (BE), Universitätsklinikum Aachen (DE), Dr Falk Pharma (Germany) (DE), Bayer (Germany) (DE), Charité - Universitätsmedizin Berlin (DE), Paul Ehrlich Institut (DE), University of Lübeck (DE)
Reduced inequalities
Openalex Percentile: Top 81%
Health Systems, Economic Evaluations, Quality of Life
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