We have a dedicated translator for that site, and it's working fine for me. To be clear, you should be saving using the Save to Zotero button, as on any other website, not using the site's export options (which don't appear to include any actual bibliographic exchange formats, for what that's worth).
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https://clinicaltrials.gov/ct2/results?term=acupuncture&cond=Depression
See Adding Items to Zotero.
Erhard