Large randomized controlled trials evaluating the efficacy of acupuncture often face challenges of high heterogeneity in outcomes. The underlying reason is that acupuncture

as a complex intervention

is simplified to a single intervention

while pilot trials fail to effectively optimize trial designs. Based on the framework of complex interventions

this article proposes a paradigm shift for acupuncture pilot trials

transforming them from simple quantitative feasibility assessments into comprehensive platforms for systematically improving the maturity of population

intervention

comparison

and outcome (PICO) elements. This article systematically reviews the necessity of embedding qualitative research or mixed methods research within this paradigm and elucidates their key roles in identifying core issues

optimizing interventions

refining procedures

exploring mechanisms

and enhancing the interpretability of results. Furthermore

mixed methods design strategies and specific implementation pathways tailored to different objectives are proposed. Finally

the challenges of this paradigm in terms of cognitive acceptance

methodological integration

and resource requirements

as well as corresponding strategies

are critically analyzed. This article aims to provide theoretical foundations and practical guidance for establishing a more rigorous and highly interpretable methodological framework for acupuncture clinical trials.