The phrase "any additional trials" is correct and usable in written English.
It can be used when inquiring about or referring to extra tests, experiments, or attempts beyond what has already been mentioned.
Example: "Please let me know if there are any additional trials that need to be conducted before we finalize the results."
Alternatives: "any further tests" or "any extra experiments".
In addition, we identified any additional trials that had been published in the 12 months up to July 2008 through a systematic review of the literature using all major literature databases for publications reporting randomized, double-blinded, placebo-controlled trials for individuals diagnosed with OAB, and that were not included in the recent meta-analysis [ 7].
Reference lists of all the selected articles were hand-searched for any additional trials.
They then plan to wait until the first results are in before starting any additional trials, he says.
References of previously published systematic reviews and bibliographic citations of included studies were used to identify any additional trials [5], [7].
We did not identify any additional trials through additional searches.
Follow-up searches failed to identify any additional trials that met inclusion criteria.
We contacted Smith and Nephew, the manufacturer of the low intensity pulsed ultrasonography devices used in most trials, to inquire about any additional unpublished trials or trials in progress.
We performed manual search of the references from original studies and review articles to identify any additional relevant trials and increase completeness.
We did approach every company in the world that we could identify as being involved with topical NSAID manufacture or sale for any additional unpublished trials.
We also retrieved recent review articles, 23 position papers and editorials, 5 24 and a previously published systematic review, 12 but these did not yield any additional relevant trials.
