The phrase "as initial treatment" is correct and usable in written English.
It can be used when referring to the first course of action or intervention in a medical or therapeutic context.
Example: "The doctor recommended medication as initial treatment for the patient's condition."
Alternatives: "as the first line of treatment" or "as primary treatment".
We initiated a phase II study of high-dose EPI as initial treatment for patients with advanced non-small cell lung cancer (NSCLC) (stage III and IV).
Occasional patients with pituitary adenomas who have recurrences after surgery are treated with external-beam radiation; this is rarely used as initial treatment.
In uncomplicated stage I hypertension, dietary changes serve as initial treatment before drug therapy.
We administered oral prednisolone 30 mg/day (0.5 mg/kg/day) as initial treatment and by means of diagnostic administration.
The potential of stent graft placement as initial treatment of hemorrhage from pseudoaneurysms has slowly been recognized.
We envision a similar potential for RIT given in advanced disease either alone or combined with chemotherapy, as initial treatment or in relapse [2, 3, 5].
The latter approach is supported by long-standing evidence showing that radiotherapy may occasionally be curative when used as initial treatment for localized follicular lymphoma [10].
Triptans are recommended as initial treatment for moderate to severe migraine attacks, or when other agents failed to reach the expected therapeutic benefit in less-disabled patients.
Supervised exercise training (SET) is recommended as initial treatment to improve walking capacity in peripheral arterial disease (PAD) patients with intermittent claudication.
The dose schedule commonly used as initial treatment 40,000 U/week, is consistent with clinical observations, but an optimal dose schedule has not been determined.
The clinical effects of antidepressant combinations vs. monotherapy as initial treatment for major depression with melancholic features (MDD-MF) are unknown.
