The phrase "an already effective" is correct and usable in written English.
It can be used to describe something that is already functioning well or producing the desired results at the present time.
Example: "The team implemented an already effective strategy that improved productivity significantly."
Alternatives: "a pre-existing effective" or "an already successful".
For example, the Staff's guidance does not expressly address the implications of filing a new Securities Act registration statement or conducting an offering off of an already effective registration statement during a company's measurement period.
"These numbers are extremely valuable and show us that we have to continue to work to make an already effective surgery even better," said study co-investigator John Conte, a cardiac surgeon.
Similarly, he improved an already effective artillery system and recruited cossacks.
Thus, selectin-mediated binding likely enhances an already effective entry process to the inflamed lung.
We recommend that increasing funds for developing one type of HIV preventive should not be detrimental to the support for another, an already effective means of protection, as long as these are not yet generally available and accessible.
Therefore, a second explanation for the different findings regarding changes of the overjet and overbite could be that an oral appliance is already effective in a less protrusive position in mild and moderate OSAS patients, resulting in less severe dental side effects.
But I did find several with potential to save time and make life easier, and a couple that are already effective even though Glass is clunky, finicky, and horribly obtrusive.
Berg is a manager with limited experience, but he was able to bring improvement to a team that was already effective.
Despite technical malfunctions, the performance of this prototype system of the CS-1 Decision Support System device was, from a clinical point of view, already effective in maintaining tight glycaemic control.
The use of an age-extreme criterion may enhance this already effective guideline.
Sustained-release bupropion (bupropion SR) represents a new form of an already known effective antidepressant drug.
