The phrase "assumption of efficacy" is correct and usable in written English.
It can be used in contexts discussing the belief or expectation that something will be effective, often in scientific, medical, or policy discussions.
Example: "The assumption of efficacy in this new treatment is based on preliminary clinical trials that show promising results."
Alternatives: "belief in effectiveness" or "expectation of success".
A recent review on the topic stated this with a weary brevity "... it is likely that FC will continue to reinforce the assumptions of efficacy among parents and practitioners... .. Despite the fact that FC has no more scientific credibility than a Ouija board, its spectre haunts us even now.
Therefore, we modeled baseline cognitive impairment and progression rates as mixed-effects in the model to ensure validity of the key assumptions of efficacy analysis.
The base assumption on efficacy is an ongoing pregnancy rate of 33.4% with Embryo-Dx.
In the case of off-label medications, the assumption of equal efficacy with rectal diazepam was a conservative estimate as clinical experts in several countries suggested that other off-label medications, such as lorazepam tablets administered by the buccal route, were less efficacious than rectal diazepam.
Atosiban was judged dominated (more expensive and less effective), but the assumption of higher efficacy of ritodrine was not grounded in statistical significance.
We considered that, given the assumption of equal efficacy in the model, it would be appropriate to use the lowest unit cost for each technology to reflect cost-effective practice.
Whether patients were started on Ranibizumab or Aflibercept was decided at the practitioner's discretion at first visit and under the assumption of similar efficacy as no proof of superiority for the one or the other substance in specific features of nvAMD was available.
School closure's failure to mitigate the impact of the disease despite the assumption of its efficacy is due to the large amount of absenteeism induced by school closures, which, in our model, is not affected by the clinical attack rate.
