Jiahui Xin
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Postdoctoral Fellow |
I am a Postdoctoral Fellow in the Department of Biostatistics at The University of Texas MD Anderson Cancer Center, working with Prof. Muxuan Liang and Prof. Ruitao Lin.
I received my Ph.D. in Statistics from the Institute of Statistics and Big Data, Renmin University of China in June 2026, supervised by Prof. Wei Ma. I was a visiting Ph.D. student at the MRC Biostatistics Unit, University of Cambridge, hosted by Dr. David Robertson. I received my bachelor's degree in Statistics from the School of the Gifted Young, University of Science and Technology of China in 2021.
Research Interests
My research focuses on precision medicine and optimization of clinical trials. Specifically, I am interested in:
Adaptive Design
Causal Inference
Treatment Heterogeneity
Research Papers
On the Achievability of Efficiency Bounds for Covariate-Adjusted Response-Adaptive Randomization.
Jiahui Xin and Wei Ma.
Statistical Methods in Medical Research, 2025.
[DOI] [arXiv] [Code]Cross-Validation Model Averaging under Covariate-Adaptive Randomization.
Fuyi Tu, Jiahui Xin, and Wei Ma.
Statistica Sinica, forthcoming.
[DOI] [Journal preprint]Covariate-Adaptive Randomization with Many Strata: Asymptotic Theory and Statistical Inference.
Jiahui Xin, Hanzhong Liu, Feifang Hu, and Wei Ma.
Working paper; an earlier version is available on arXiv.
[arXiv (earlier version)]Covariate-Adaptive Enrollment for Single-Arm Trials Using External Controls.
Jiahui Xin, Hengjia Fang, Zhiyue Huang, Satoshi Yoshida, and Wei Ma.
Working paper.
Ongoing Projects
Exact Tests for Covariate-Adjusted Response-Adaptive Designs (working title).
Ongoing collaborative work with Stef Baas, David Robertson, and Sofia Villar; manuscript in preparation.
Industry Experience
Astellas Pharma, Clinical Biostatistics Intern, June 2025 – Aug. 2025
Developed adaptive enrollment strategies for single-arm survival trials with external controls.
Presentations
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MRC Biostatistics Unit, University of Cambridge
Efficient Study Design Discussion Group, Online, July 2026 - Invited Talk
Title: Exact Tests for Covariate-Adjusted Response-Adaptive Designs: Unconditional and Conditional Approaches
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Joint Conference on Statistics and Data Science in China
Young Researchers Workshop, Guiyang, China, July 2026 - Oral Presentation
Title: Covariate-adaptive randomization with many strata: Asymptotic theory and statistical inference
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Isaac Newton Institute for Mathematical Sciences, University of Cambridge
Causal Inference in Biomedicine Workshop, Bristol, UK, April 2026 - Poster Presentation
Title: Covariate-adaptive enrollment for single-arm trials using external controls
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Isaac Newton Institute for Mathematical Sciences, University of Cambridge
Causal Inference in the Real World Workshop, Cambridge, UK, April 2026 - Lightning Talk & Poster Presentation
Title: Covariate-adaptive enrollment for single-arm trials using external controls
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MRC Biostatistics Unit, University of Cambridge
Efficient Study Design Discussion Group, Cambridge, UK, Feb. 2026 - Invited Talk
Title: Covariate-adaptive randomization with many strata: Asymptotic theory and statistical inference
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Drug Information Association
Quantitative Science Forum, Nanjing, China, Oct. 2025 - Invited Talk
Title: Covariate-adaptive enrollment for single-arm survival trials using external controls
Academic Service
Journal Reviewer: Statistical Methods in Medical Research (2026).
Workshop Reviewer: NeurIPS 2026 Workshop on Reinforcement Learning for Experimental Sciences.
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Contact
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