investigational
adjective
in·ves·ti·ga·tion·al
in-ˌve-stə-ˈgā-sh(ə-)nəl 
1
: of or relating to investigation
investigational activities
2
: relating to or being a drug or medical procedure that is not approved for general use but is under investigation in clinical trials regarding its safety and efficacy
an investigational new drug
Examples of investigational in a Sentence
Recent Examples on the Web
Schmid worries their absence could impact the implementation of a new investigational PrEP medication that, if approved, would only need to be administered twice a year.
—
Joseph Choi, The Hill, 15 Apr. 2025
Clinical trial for hair growth participants The Center for Clinical and Cosmetic Research in Aventura is seeking men with pattern hair loss to participate in a clinical trial for an investigational treatment.
—Cindy Krischer Goodman, Sun Sentinel, 13 Mar. 2025
Deep brain stimulation and other surgical implants have long been used in neuropsychiatric research as an investigational treatment in cases of severe mental illness, including treatment-resistant depression.
—Naveen Rao, Forbes.com, 2 Apr. 2025
The company plans to submit three investigational new drug applications to the FDA within the next 12 to 24 months, starting with HWK-007 for solid tumors in the second half of 2025.
—Quartz Intelligence Newsroom, Quartz, 28 Mar. 2025
See All Example Sentences for investigational
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Joseph Choi, The Hill, 15 Apr. 2025
Clinical trial for hair growth participants The Center for Clinical and Cosmetic Research in Aventura is seeking men with pattern hair loss to participate in a clinical trial for an investigational treatment.
—Cindy Krischer Goodman, Sun Sentinel, 13 Mar. 2025
Deep brain stimulation and other surgical implants have long been used in neuropsychiatric research as an investigational treatment in cases of severe mental illness, including treatment-resistant depression.
—Naveen Rao, Forbes.com, 2 Apr. 2025
The company plans to submit three investigational new drug applications to the FDA within the next 12 to 24 months, starting with HWK-007 for solid tumors in the second half of 2025.
—Quartz Intelligence Newsroom, Quartz, 28 Mar. 2025
See All Example Sentences for investigational
Cite this Entry
“Investigational.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/investigational. Accessed 25 Apr. 2025.
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