The phrase "appreciable efficacy" is correct and usable in written English.
It can be used in contexts where you want to describe a noticeable or significant effectiveness of something, such as a treatment or intervention.
Example: "The new medication demonstrated appreciable efficacy in reducing symptoms among patients."
Alternatives: "significant effectiveness" or "notable impact".
While biologics and bioengineered strategies are widely considered to represent the high potential benefits for those who have sustained a spinal injury, few such therapies have been thoroughly tested with appreciable efficacy for use in human SCI.
A large number of agents, including 5-fluorouracil (5-FU), mitomycin-C, and cisplatin, have been tested as single agents or in combination therapies without appreciable efficacy (Hejna et al, 1998; van Riel et al, 1999; Yee et al, 2002).
In continuation of our efforts to discover new and potent inhibitors of medicinally important enzymes through high-throughput screening assays, we identified these biscoumarins, having appreciable efficacy against ureases.
Drugs including 5-flourouracil, mitomycin C, cisplatin, methotrexate, etoposide, doxorubicin, nitrosoureas, paclitaxel, and irinotecan have been tested either as single agents or in combination, without appreciable efficacy in the treatment of advanced gall bladder cancer.
A number of potential antigens have been identified and tested as components of subunit vaccines, but none aside from lipopolysaccharide have shown appreciable protective efficacy [6], [7].
According to Whyte, most responders fall into one of two categories: those who can take zolpidem daily, with no appreciable loss of efficacy, and those for whom the "awakenings" wane with continued use.
Again, no appreciable differences in efficacy were noticed between fresh and aged solutions, experimentally inoculated with F. solani and F. oxysporum.
Among the target compounds, only 16 showed appreciable effectiveness, exhibiting an efficacy parameter (57%) lower than that of NS1619 and a comparable potency index (pIC50: 5.58).
The discovery and development of MRP1 inhibitors with high efficacy and appreciable safety have been much more difficult than those of P-gp, mostly because MRP1 is an anionic transporter.
Although the efficacy of MTX is appreciable, patients with rapidly progressing disease (RPD) may obtain additional benefit from more intensive therapy.
