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Recent ISS findings address drug stability in space and astronaut balance after spaceflight

Station Science Top News: Feb. 21, 2025 - NASA
A test subject performing a sensorimotor field test on the ground. Credit: NASA / Lauren Harnett

International Space Station researchers continue to share their new discoveries. Their recent findings include results in the pharmaceutical and astronaut health arenas.

Improving space-based pharmaceutical research

Researchers found differences in the stability and degradation of the anti-COVID drug remdesivir in space and on Earth on its first research flight, but not on a second. This highlights the need for more standardized procedures for in space.

Long-term stability of drugs is critical for future space missions. Because multiple characteristics of spaceflight could influence chemical , the scientists repeated their experiment under circumstances as nearly identical as possible. This research used Kirara, a temperature-controlled incubator developed by JAXA (Japan Aerospace Exploration Agency) for crystallizing proteins in microgravity. Results also confirmed that a solubility enhancer used in the drug is radiation resistant and its quality was not affected by microgravity and launch conditions.

Evaluating postflight task performance

Immediately after returning from the International Space Station and for up to one week, astronauts perform functional tasks in ways similar to on Earth who have a loss of inner ear function. This finding suggests that comparing data from these patients and astronauts could provide insight into the role of the balance and sensory systems in task performance during critical parts of a mission such as landing on the moon or Mars.

Spaceflight causes changes to the balance (vestibular) and that can lead to symptoms such as disorientation and impaired locomotion. Standard Measures collects a set of data, including tests of sensorimotor function, related to human spaceflight risks from astronauts before, during, and after missions to help characterize how people adapt to living and working in space.

Provided by NASA

Citation: Recent ISS findings address drug stability in space and astronaut balance after spaceflight (2025, February 24) retrieved 25 June 2025 from /news/2025-02-iss-drug-stability-space-astronaut.html
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