The phrase "a more efficacious method" is correct and usable in written English.
It can be used when discussing a method that is more effective or produces better results compared to others.
Example: "After reviewing the options, we decided to implement a more efficacious method for our research project."
Alternatives: "a more effective approach" or "a superior technique."
While in our study and others visual inspection lacks good correlation with microbial contamination [ 8, 10, 11], we did not identify an appreciably more efficacious method of assessing PDC.
Although carotid endarterectomy (CEA) is the established gold standard for carotid revascularization, carotid artery angioplasty and stenting (CAS) is continually developing into a safer and more efficacious method of stroke prevention.
So the spectrum auction is more the government helping with the re-allocation of spectrum to a more efficacious part of the economy.
Yet despite this, concrete reinforced with bundle-type fibers is shown to more effectively suppress scabbing during high-velocity impact, which is attributed to a more efficacious dispersion of shock stress due to the increased number of individual fibers.
Thiamethoxam as the sole active ingredient was used, not a more efficacious commercial product, at seed treatment rates that were lower than recommended as per common agricultural practices.
It was considered by many eminent medical professionals to be a more efficacious antimalarial than quinine.
OnOr1 in this study exhibited a more efficacious response to the E12 14 OAc ligand.
Despite a worldwide effort for more effective Mtb chemotherapies and a more efficacious TB vaccine remain illusive [3].
These results argue against our initial hypothesis that a neuronal self-antigen may provide a more efficacious neuroprotective vaccine.
Therefore, a more efficacious treatment strategy has been sought.
These responses are consistent with a more efficacious action of the biased agonist.
