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Discover LudwigThe phrase "a decrease in psa" is correct and usable in written English.
It can be used in contexts discussing medical or health-related topics, particularly in reference to prostate-specific antigen (PSA) levels in blood tests.
Example: "The recent tests showed a decrease in psa, indicating a positive response to the treatment."
Alternatives: "a reduction in psa" or "a drop in psa".
Exact(18)
Of the 13 patients evaluable for prostate-specific antigen (PSA) response, nine (69%) experienced a decrease in PSA level of >50%.
Eighteen of 23 (78%) evaluable patients had a decrease in PSA slope between the pre- and post-vaccine phases.
Eight of thirteen patients had a decrease in PSA of greater than 50%.
Using level of PSA as a surrogate marker for clinical response, 13 patients demonstrated a decrease in PSA log slope.
In castrate-resistant disease, a decrease in PSA, BAP or BAP/uNTx was significantly correlated with better OS when compared with no decrease (Table 5).
In androgen-dependent disease, a decrease in PSA or uNTx during therapy was significantly correlated with better OS when compared with no decrease (Table 5).
Similar(42)
Overall partial remission was reported in 42% of 83 patients with measurable disease and a decrease in serum PSA greater than 50% was noted in 46 out of 83 patients treated in similar Phase II studies at the three centres.
As shown by these investigators and in a previously published paper by Scher et al (1990), a 50% decrease in PSA may be used as a parameter for response evaluation and may also be a surrogate for survival.
There was a significant decrease in PSA levels (ng/ml) after treatment with dietary modification and the specific herbal supplement taken at 2 capsules daily.
In the 19 patients showing a more than 25%% decrease in PSA the median time to PSA progression was 126 days (range 62 to 469 days; Fig. 6c).
Similarly, there was a decrease in the global activity of PsA during the study, shown by a decrease in both VAS and BASDAI (P < 0.0001 versus baseline) (Table 4), indicating an improvement in the musculoskeletal involvement of PsA.
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