"comparative clinical study" is correct and usable in written English.
It is used to describe a type of research study where two or more treatments or interventions are compared. For example, "The researchers conducted a comparative clinical study to determine if the new drug was more effective than the current treatment."
This open-label, randomised, comparative clinical study compared the activity of TSP 0.5% and 1% vs. HA 0.2% (Hyalistil™).
The aim of our study was to prove this result in a comparative clinical study with a corresponding design.
Over the past decade, doctors increasingly have used percutaneous ablation as a treatment option for stage T1a kidney cancers, but much less frequently than the two main surgical options, due in part to the lack of comparative clinical study data.
This was a prospective comparative clinical study to test the hypothesis that the decreased ovarian sensitivity to gonadotropins observed in women embarking on an in vitro fertilization (IVF) treatment may be due to changes in ovarian stromal blood flow.
Materials and Methods: This 6-month comparative clinical study used retrospective data from 1992 (an open single-space unit) and prospective surveillance from 1995 (individual rooms) to assess the effectiveness of the latter design on the control of NIs in critically ill pediatric patients.
No comparative clinical study to date has proven evidence of survival favoring TACE over TAE [112].
Besides anecdotal clinical reports, three classes of clinical studies are distinguished: (a) observational clinical studies (55 of the total) which analyze series of cases, (b) comparative clinical studies (36) which compare therapeutic products or treatment regimens without a gold standard for comparison and (c) randomized clinical trials (RCT, 51).
This heterogeneity in the choice of antibiotics is related to the lack of guidelines and comparative clinical studies, as documented by a Cochrane review comparing different antibiotic regimens for suspected late-onset sepsis in newborns [ 76].
Comparative clinical studies that assessed such endpoints for different patient populations were included and summarized descriptively.
Early well-designed comparative clinical studies have also shown positive outcomes.
This is mostly because, although CI has been shown to be superior to IB dosing during in vitro [32, 33] and in vivo [34 37] experimental studies, comparative clinical studies have so far failed to demonstrate significant differences in patient outcome.
