Modified 3+3 Design for MTD Re-estimation
dc.contributor.advisor | Zang, Yong | |
dc.contributor.author | Zhang, Tianshu | |
dc.contributor.other | Han, Yan | |
dc.contributor.other | Liu, Ziyue | |
dc.date.accessioned | 2024-07-02T14:14:16Z | |
dc.date.available | 2024-07-02T14:14:16Z | |
dc.date.issued | 2024-06 | |
dc.degree.date | 2024 | |
dc.degree.discipline | Biostatistics | en |
dc.degree.grantor | Indiana University | en |
dc.degree.level | M.S. | |
dc.description | Indiana University-Purdue University Indianapolis (IUPUI) | en |
dc.description.abstract | The 3+3 clinical trial design is one of the most popular dose-finding designs used in phase I oncology trials to identify the maximum tolerated dose (MTD) for new treatment regimens. While this design is widely used due to its simplicity , it has some notable limitations, including a maximum of six patients per dose level and fixed target toxicity rates. To address these issues, we propose a modified 3+3 design that extends the traditional 3+3 design by treating the remaining patients at the MTD level for additional dose-limiting toxicity (DLT) assessment. This modification allows for a more flexible and accurate way to identify the MTD, enhanced by the use of isotonic regression to calculate DLT rates. To compare the modified 3+3 designs and the traditional 3+3 design, computer simulation studies have been carried out under various dose-toxicity scenarios. The results show that the modified 3+3 design yields higher accuracy in MTD identification. | |
dc.identifier.uri | https://hdl.handle.net/1805/42019 | |
dc.language.iso | en_US | |
dc.subject | Phase I clinical trial | |
dc.subject | 3+3 design | |
dc.subject | maximum tolerated dose (MTD) | |
dc.subject | dose-limiting toxicity (DLT) | |
dc.title | Modified 3+3 Design for MTD Re-estimation | |
dc.type | Thesis | en |