The administration of President Donald Trump has cut taxpayer-funded grants for transgender experiments on animals, the watchdog White Coat Waste Project (WCW) told Breitbart News exclusively.

Two National Institutes of Health (NIH) grants awarded under the administration of former President Joe Biden — both to Harvard University — were terminated early on March 12, per WCW, a bipartisan government watchdog.

One of the grants, worth $299,940, was titled “Gender-Affirming Testosterone Therapy on Breast Cancer Risk and Treatment Outcomes” and used toward “transmasculine” animal experiments, in which female mice were administered testosterone and had their ovaries removed.

“This proposal will undertake preclinical studies to address breast cancer (BC) risk and treatment concerns of transmasculine people (female-to-male transition),” an abstract of the grant reads, noting that “most transmasculine individuals pursue testosterone therapy (TT) to treat their gender dysphoria.”

“The breast is a sex hormone-sensitive organ. Transmasculine individuals who receive TT are now a subject of concern – very little is known about how such high levels of testosterone affect the breast and subsequently risk of developing BC,” the summary asserts, adding that human studies of this subject are “decades” away.

The “Gender-Affirming Testosterone Therapy […]” grant began in September 2023 and was set to end in August 2025, but Trump’s NIH succeeded in cutting its lifespan short earlier this month. The agency likewise put a stop to a second grant focused on “Molecular Mechanisms of Hormone-Mediated Sex Differences in Wound Healing” that began in September 2024. Per WCW, the $442,444 project was set to receive $2.2 million total through 2029 before Trump’s revamped NIH killed its funding last week.