'through these efforts' is correct and usable in written English.
You can use it to describe a situation where a lot of work has gone into achieving a certain result. For example, "The team worked hard and, through these efforts, achieved success."
Through these efforts, Sakharov began to adopt strong moral positions about the social responsibilities of scientists.
Through these efforts, we strive to propose empirically-based, interdisciplinary strategies for biodiversity conservation.
Through these efforts, several useful strategies have emerged for rational optimization of therapeutic candidates.
Through these efforts, the world is sending an unmistakable signal: We're in this together, and we'll come through this together.
We feel that through these efforts our medical center will be a stronger and more responsive health care provider.
Through these efforts compound 2 was identified as a potent (cell IC50 = 15 nM) BACE inhibitor with acceptable ADME properties.
Through these efforts, a potent and selective inhibitor of CYP3A, GS-9350 (cobicistat) with improved physiochemical properties was discovered.
Through these efforts, common confounding variables in tinnitus research have been identified, and solutions to these problems have been suggested.
Through these efforts, Novartis has seen a growing interest in providing basic health education in the face of limited resources and a challenging regulatory environment.
Through these efforts we have identified recurrent patterns in the evolution of breakthrough ideas and constructed a five-part framework for developing them and ensuring their survival.
Without isolation the users acquired through these efforts would easily be treated as sales leads for the core team, putting the radical experiment fully at risk.
