Introduction: Acromegaly is a rare endocrine disease; its treatment is surgical (Hypophysectomy). However, somatostatin analogs represent another modality of therapy in addition to deep X-ray therapy as a third, option. The aim of the study is to find out the response of patients with acromegaly to octreotide as reflected on regression of adenoma size, insulin-like growth factor (IGF), and growth hormone (GH) by studying the medical records of many patients with acromegaly. Method: A total of 80 patients with acromegaly are enrolled in the study from July/2019 to April/2020. Their age range (20–72 years). They are 47 men and 33 women. Their selection was based on their visits to NDC on the basis of prescheduled appointments to be given their monthly injections of long-acting octreotide (LAR) and to be examined clinically plus conducting various types of hormonal studies and biochemical workups to assess their response to treatment on the following parameters: Adenoma size, IGF-1 and GH and its correlation with octreotide dose. Results: It is a cross-sectional comparative clinical trial study of 80 patients with acromegaly. Mean of age was 46.7 ± 12.4 years’, and their age range (20–72 year) minimum and maximum-year-old. Mean duration of taking drug was 8 ± 6.7 years. The mean of total LRA injection was (1073.6 ± 666.2 mg). 58.75% of patients were male while 41.25% were female. 46.25% of patients do not have transsphenoidal direct surgery, but 46.25% undergo one surgery, 7.5% undergo two transsphenoidal hypophysectomies. 87.5% of patients have no gamma knife while 12.5% have gamma knife radiosurgery. Conclusion: Acromegaly is a multi systemic disease that should be diagnosed and treated as early as possible to prevent complications and improve mortality rates.

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