The phrase "as primary therapy" is correct and usable in written English.
It can be used in medical or therapeutic contexts to indicate that something is the main form of treatment being applied.
Example: "The patient was prescribed medication as primary therapy for their condition."
Alternatives: "as the main treatment" or "as the principal therapy".
This approach should be considered as primary therapy in this clinical setting.
From 1977 to 1983 we used cimetidine as primary therapy for 17 patients with the Zollinger-Ellison syndrome.
To identify and review original studies on balloon and rigid dilatation as primary therapy for laryngotracheal stenosis (LTS) in pediatric patients.
To elucidate the effect of diet and comprehensive lifestyle changes on cancer risk, we are conducting a randomized, prospective clinical trial on men with clinically localized prostate cancer who have selected "watchful waiting" as primary therapy.
There is a suggestion that pulsed-dose methylprednisolone, in addition to aspirin and IVIG as primary therapy results in faster resolution of fever, more rapid improvement in inflammatory markers, and shorter length of hospitalization.
However, more clinical data are needed to define its role as primary therapy for invasive aspergillosis, and its role in combination antifungal therapy.
The use of niacin and well-tolerated fibrates as an adjunct to statins or as primary therapy in patients intolerant of statins appears reasonable in patients with low levels of HDL-cholesterol and at high risk of cardiovascular events.
The study is a retrospective analysis of 52 patients who received repetitive 5-day cycles of intramuscular methotrexate as primary therapy for metastatic trophoblastic disease between 1975 and 1990.
This study compared survival after initial treatment with esophagectomy as primary therapy to induction therapy followed by esophagectomy for patients with clinical T2N0 (cT2N0) esophageal cancer in the National Cancer Database (NCDB .Predictors of therapy selection for patients with cT2N0 esophageal cancer in the NCDB from 1998 to 2011 were identified with multivariable logistic regression.
They received PVACEBOP multi-agent chemotherapy as primary therapy.
As primary therapy 70 cervical cancer patients received radiation therapy and 197 surgery.
