Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
has validated its efficacy
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "has validated its efficacy" is correct and usable in written English.
You can use it when discussing the confirmation or proof of the effectiveness of a product, method, or treatment. Example: "The clinical trial has validated its efficacy, demonstrating significant improvements in patient outcomes."
✓ Grammatically correct
Science
Alternative expressions(19)
has shown its value
has borne fruit
has paid off
has yielded results
has proven successful
has shown promise
has achieved success
has been effective
has produced results
has outcome
has been successful
has demonstrated its worth
has shown its effectiveness
has yielded positive results
has proved its worth
has been worthwhile
will pay off
has come to fruition
has delivered benefits
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
Although several randomized controlled studies have validated its efficacy for nonhealing wounds, it remains expensive and not widely utilized [ 121, 122].
The most studied plant is Galphimia glauca Cav., Malpighiaceae, which current clinical studies have validated its efficacy in patients, and their active components, the triterpenes galphimine A, B, and C, identified.
Although carbohydrate counting is widely used by patients worldwide, few studies have validated its efficacy in type 1 diabetes (12, 13), and none have validated its efficacy in adult patients receiving continuous subcutaneous insulin infusion (CSII).
Science
Few studies have assessed the efficacy of carbohydrate counting in type 1 diabetes, and none have validated its efficacy in patients who are treated with continuous subcutaneous insulin infusion (CSII).
Science
No key opinion leader has validated its use in oncology.
Her father had validated its accuracy.
News & Media
24, 25 Several clinical trials have been performed with efalizumab, which validated its efficacy in short-term (12 weeks), mid-term (24 weeks) or long-term (36 or more months) treatment.
But recently, research has validated the efficacy of CBT-I done remotely by computer.
News & Media
Yet no research has validated the efficacy of such tools in minimizing plagiarism in the sciences.
Science
37 A recent controlled study has validated the efficacy and safety of IFN-based therapy for HCV-related decompensated cirrhotic patients.
Science
While substantial research has validated the efficacy of the noctuid moth 'attracticide' (reviewed in Gregg et al. 2010), further work is necessary to establish if it will assist in retarding the evolution of resistance and be assigned a role in resistance management.
Science
Expert writing Tips
Best practice
When using "has validated its efficacy", ensure the subject is clearly defined and the context provides specific details about what "its" refers to for clarity.
Common error
Avoid using "has validated its efficacy" in casual writing; opt for simpler phrases like "works well" or "is effective" to maintain a natural tone.
Source & Trust
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "has validated its efficacy" functions as a declarative statement used to assert that something's effectiveness has been confirmed or proven. Ludwig AI indicates this phrase is grammatically correct.
Frequent in
Science
75%
News & Media
17%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "has validated its efficacy" is a grammatically correct and formal expression, as confirmed by Ludwig AI, used to assert that something has proven effective through research or studies. It is most commonly found in scientific contexts and less frequently in news or business writing. Simpler alternatives, such as "has confirmed its effectiveness", may be preferable in informal settings. When using the phrase, clarity is key; ensure the subject is well-defined, specifying what "its" refers to. While accurate, this expression should be thoughtfully employed to suit the tone and audience.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
has confirmed its effectiveness
Replaces "validated" with "confirmed" and "efficacy" with "effectiveness", offering a slightly simpler phrasing.
has proven its efficacy
Substitutes "validated" with "proven", maintaining a formal tone while emphasizing the established nature of the efficacy.
has demonstrated its effectiveness
Replaces "validated" with "demonstrated" and "efficacy" with "effectiveness", focusing on the observable evidence of its efficacy.
efficacy has been confirmed
Changes the sentence structure to passive voice, highlighting the confirmation of efficacy rather than the act of validation.
effectiveness has been demonstrated
Uses passive voice and emphasizes the showing of effectiveness, suitable when the focus is on the demonstration itself.
its efficacy is validated
Puts "efficacy" at the beginning and uses a passive voice emphasizing the state of being validated.
studies support its efficacy
Focuses on the studies that provide evidence for the efficacy, rather than the act of validation itself.
research confirms its effectiveness
Highlights the role of research in establishing the effectiveness, suitable for academic or scientific contexts.
evidence supports its efficacy
Emphasizes the presence of evidence that backs up the claim of efficacy.
trials have established its efficacy
Specifically mentions trials as the means of proving the efficacy, useful in clinical or experimental contexts.
FAQs
How can I rephrase "has validated its efficacy"?
You can use alternatives such as "has confirmed its effectiveness", "has proven its efficacy", or "has demonstrated its effectiveness" depending on the context.
Is it appropriate to use "has validated its efficacy" in formal writing?
Yes, "has validated its efficacy" is suitable for formal and scientific writing. However, ensure that the context is appropriate and the subject is clearly defined.
What does "has validated its efficacy" mean?
It means that something's effectiveness has been confirmed or proven through research, studies, or trials.
What are some common errors when using "has validated its efficacy"?
A common error is using the phrase in informal writing where simpler alternatives would be more appropriate. Also ensure you clearly define what "its" refers to.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested