Zelen's design is an experimental design for randomized clinical trials proposed by Harvard School of Public Health statistician Marvin Zelen (1927-2014).
zˈɛlənz dɪzˈaɪn ɪz ɐn ɛkspˌɛɹɪmˈɛntəl dɪzˈaɪn fɔːɹ ɹˈændəmˌaɪzd klˈɪnɪkəl tɹˈaɪəlz pɹəpˈoʊzd baɪ hˈɑːɹvɚd skˈuːl ʌv pˈʌblɪk hˈɛlθ stˌæɾɪstˈɪʃən mˈɑːɹvɪn zˈɛlən nˈaɪntiːnhˈʌndɹɪd twˈɛnti sˈɛvən dˈæʃ tˈuː θˈaʊzənd fˈoːɹtiːn.