Practical designs for Phase I combination studies in oncology.

Area of Science:

• Oncology
• Clinical Trials
• Biostatistics

Background:

• Phase I clinical trials for multidrug combinations in oncology are increasing.
• Novel methodologies exist but are underutilized in practice.
• There is a need for accessible and implementable innovative trial designs.

Purpose of the Study:

• To review three straightforward and understandable methods for Phase I combination studies.
• To illustrate the operating characteristics of these novel designs.
• To promote the use of innovative approaches in early-phase combination trials.

Main Methods:

• Review of three distinct Phase I combination study designs.
• Illustration of design operating characteristics via a single trial example.
• Extensive simulation studies to evaluate design performance.

Main Results:

• The reviewed methods are easy to understand and implement.
• Simulations demonstrate the operating characteristics of the designs.
• The study provides insights into design specifications and software.

Conclusions:

• Novel and accessible methods for Phase I combination trials can enhance clinical research.
• Increased adoption of these innovative designs is encouraged.
• Further exploration of design specifications and software is warranted.