Thirty-seven men with symptomatic bone metastases from prostate cancer that had progressed following earlier treatment with estrogens and/or orchidectomy were treated with low-dose prednisone (7.5 to 10 mg daily). The rationale for this treatment was that some patients might still have hormone-sensitive disease that was stimulated by weak androgens of adrenal origin, and that these androgens could be suppressed by prednisone through its negative feedback on secretion of adrenocorticotrophic hormone (ACTH). Response to treatment was assessed by requirement for analgesics, by the McGill-Melzack pain questionnaire, and by a series of 17 linear analog self-assessment (LASA) scales relating to pain and to various aspects of quality of life. Fourteen patients (38%) had improvement in indices used to assess pain at 1 month after starting prednisone, and seven patients (19%) maintained this improvement for 3 to 30 months (median, 4 months). Reduction in pain was associated with improvement in other dimensions of quality of life, and in the scale for overall well-being. Prednisone treatment led to a decrease in the concentration of serum testosterone in seven of nine patients where it was not initially suppressed below 2 nmol/L, and caused a decrease in serum levels of androstenedione and dehydroepiandrosterone sulfate in more than 50% of patients. Symptomatic response was associated with a decrease in serum concentration of adrenal androgens. We conclude that (1) low-dose prednisone may cause useful relief of pain in some patients with advanced prostatic cancer; (2) relief of pain was associated with suppression of adrenal androgens; and (3) measures of pain and quality of life can be used to assess possible benefits of systemic therapy in patients with metastatic prostate cancer.
Evidence is presented of the effectiveness and relative lack of serious toxicity of external beam megavoltage radiation therapy (RT) as primary treatment for juvenile nasopharyngenl angiofibroma. The importance of careful radiological evaluation of tumor extent prior to irradiation is stressed, and only moderate dose RT is required.
Fifty‐five patients have been treated by RT and followed for from 3 to 26 years. Forty‐four of 55 patients (80%) had permanent tumor control following a single course of 3000 cGy to 3500 cGy over 3 weeks. Surgical resection or a second course of RT controlled the tumor in all 11 patients in whom regrowth occurred. Angiofibromas involute slowly after RT so that 50% of patients still had visible masses in the nasopharynx 12 months after treatment, but only 10% had any visible abnormality 36 months after RT. Retreatment was necessary only if symptoms recurred, and continued follow‐up showed that most asymptomatic nasopharyngeal masses resolved completely.
Acute and late toxicity rates were low. Two patients developed tumors in the head or neck following RT. There was no significant clinical impairment of growth or endocrine function.
A single course of external beam megavoltage radiation to 3000 cGy in 3 weeks is an effective first treatment for patients with juvenile nasopharyngeal angiofibroma.
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