Octreotide is the acetate salt of a cyclic octapeptide. It is a long-acting octapeptide with pharmacologic properties mimicking those of the natural hormone somatostatin.
Sandostatin LAR® Depot (octreotide acetate for injectable suspension) is indicated for long-term maintenance therapy in acromegalic patients for whom medical treatment is appropriate and who have been shown to respond to and can tolerate Sandostatin® (octreotide acetate) Injection. The goal of treatment in acromegaly is to reduce GH and IGF-1 levels to normal. Sandostatin LAR® Depot can be used in patients who have had an inadequate response to surgery or in those for whom surgical resection is not an option. It may also be used in patients who have received radiation and have had an inadequate therapeutic response
(see CLINICAL TRIALS and DOSAGE AND ADMINISTRATION).
Sandostatin LAR® Depot is indicated for long-term treatment of the severe diarrhea and flushing episodes associated with metastatic carcinoid tumors in patients in whom initial treatment with Sandostatin® Injection has been shown to be effective and tolerated.
Sandostatin LAR® Depot is indicated for long-term treatment of the profuse watery diarrhea associated with VIP-secreting tumors in patients in whom initial treatment with Sandostatin® Injection has been shown to be effective and tolerated.
In patients with acromegaly, carcinoid syndrome and VIPomas, the effect of Sandostatin® Injection and Sandostatin LAR® Depot on tumor size, rate of growth and development of metastases, has not been determined.
Published Studies Related to Sandostatin LAR Depot (Octreotide Long Acting)
Randomised clinical trial: the safety and efficacy of long-acting octreotide in
patients with portal hypertension. 
Class A or B cirrhosis and small oesophageal varices... CONCLUSIONS: The absence of significant haemodynamic benefit, as well as the high
Six-month preoperative octreotide treatment in unselected, de novo patients with acromegaly: effect on biochemistry, tumour volume, and postoperative cure. [2011.06]
OBJECTIVE: Treatment with somatostatin analogues is the primary medical treatment of acromegaly. Controversies still exist whether acute octreotide effect predicts long-term biochemical effects, tumour regression or surgical cure. This prospective study investigates effect of 6-month treatment with octreotide long-acting repeatable (LAR) on insulin-like growth factor-1 (IGF-1) and growth hormone (GH) levels, pituitary function, tumour regression and postoperative cure in de novo acromegalic patients... CONCLUSION: Six months of long-acting octreotide using a fixed dose, 1/3 of the patients came in biochemical remission, while 2/3 had significant tumour reduction. Moreover, an acute effect of octreotide seemed to be a prerequisite for long-term effect. (c) 2011 Blackwell Publishing Ltd.
Objective radiological disease control with Sandostatin monotherapy in metastatic neuroendocrine tumours. [2010.06]
Conventional cytotoxic chemotherapy is not usually effective in neuroendocrine tumours (NET)... Further investigation in prospective trials is warranted and the possibility for late responses might have implications for trial design.
Octreotide acetate in prevention of chemoradiation-induced diarrhea in anorectal cancer: randomized RTOG trial 0315. [2010.04.21]
BACKGROUND: In anorectal cancer patients, an acute side effect of chemoradiotherapy is gastrointestinal toxicity, which often impedes treatment delivery. Based on previous trials, octreotide acetate is widely recommended for the control of chemotherapy-induced diarrhea. However, the effectiveness of octreotide in preventing or controlling radiation- and chemoradiation-induced diarrhea is not known... CONCLUSION: In this study, the prophylactic use of LAO did not prevent the incidence or reduce the severity of diarrhea and had no notable impact on patient-reported bowel function or QoL.
A randomized, double-masked controlled clinical trial of Sandostatin long-acting release depot in patients with postsurgical cystoid macular edema. [2010.01]
PURPOSE: The purpose of this study was to evaluate the safety and efficacy of octreotide, a somatostatin analog, for treatment of postsurgical cystoid macular edema... CONCLUSION: Although there were no statistically significant differences between both groups in retinal thickening or angiographic leakage, octreotide-treated patients were more likely to experience a > or =2-line improvement in visual acuity. However, this observation cannot be generalized because of the small sample size.
Clinical Trials Related to Sandostatin LAR Depot (Octreotide Long Acting)
A Multicenter Placebo-Controlled Double Blind Study to Evaluate the Efficacy and Safety of Sandostatin ( SMS 201-995 ) in Patients With Acquired Immunodeficiency Related Diarrhea Who Were Either "Responders" or "Non-Responders" in a Prior Placebo-Controlled Double-Blind Sandostatin Study. [Completed]
The primary objective of this study is to determine the relapse rate in patients with
AIDS-related diarrhea who were found to be "Responders" in a previous placebo-controlled,
double-blind study of Sandostatin (Study #D203 - FDA 102A).
The secondary objectives include: 1) To evaluate clinical efficacy and safety of open-label
Sandostatin in patients who were "Non-Responders" in Study #D203 - FDA 102A; 2) To evaluate
the efficacy and safety of Sandostatin during prolonged open-label treatment in "Responders"
from Study #D03 - FDA 102A.
Pegvisomant And Sandostatin LAR Combination Study [Completed]
The purpose of this study is to compare the safety and tolerability of combination therapy
with Sandostatin LAR plus Pegvisomant to that of Sandostatin LAR alone or Pegvisomant alone.
Ultrasound Guided Sandostatin LAR Injection in Acromegaly [Recruiting]
The purpose of this study is to determine the difference in drug levels of Sandostatin after
IM injection of Sandostatin LAR without ultrasound guidance (as is the standard of care)
compared to drug levels of Sandostatin after IM injection of Sandostatin LAR with ultrasound
guidance in subjects with Acromegaly.
Combination of Bevacizumab, Pertuzumab, and Sandostatin for Adv. Neuroendocrine Cancers [Recruiting]
The purpose of this Phase II trial will be to define the activity of a VEGF inhibitor
bevacizumab, HER1/HER2 inhibitor pertuzumab, and sandostatin for patients with advanced
neuroendocrine cancers. In particular, the efficacy of bevacizumab and pertuzumab treatment
is of great interest. The primary endpoint of this trial will be response rate. Toxicity and
progression-free survival will be obtained and evaluated.
Preoperative Octreotide Treatment of Acromegaly [Active, not recruiting]
The purpose of this study is to investigate whether 6 months preoperative treatment with the
somatostatin analogue octreotide improves the surgical outcome in patients with acromegaly.