stage adaptation; theatrical adaptation
Refers to a work (novel, film, manga, etc.) that has been adapted for the stage.
The stage adaptation of this novel will be performed next month.
Tickets for the theatrical adaptation of the popular anime sold out quickly.
Refers to a film adaptation, whereas 舞台化作品 is specifically for stage/theatrical adaptations.
Refers to a TV drama adaptation, while 舞台化作品 is for live stage productions.
Compound of 舞台 (stage) + 化 (-ization) + 作品 (work). The exact historical derivation is uncertain, but the word follows a productive pattern for adaptation terms.