midstage

not-comparable

At or in an intermediate stage, between beginning and completion

Japanese Meaning

初期と完成の間にある中間段階 / 途中の段階、一段階

The midstage development of the app revealed both promising features and unforeseen bugs.

アプリの開発は中間段階で、有望な機能と予期しないバグの両方が明らかになった。

Sense（1）

At or in an intermediate stage, between beginning and completion

Results of a midstage clinical trial are expected to be presented this week […].