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Somatostatin Analogue Pregnancy: Limited data (fewer than 300 pregnancies); as a precaution, use should be avoided during pregnancy. Should not be used during breast-feeding.

Lanreotide

Brand names: Somatuline Autogel

Lanreotide is a long-acting somatostatin analogue used in acromegaly and in the treatment of symptoms and tumour control of neuroendocrine tumours.

Auto-extracted from the source labelling — not yet independently clinician-verified. These values were distilled from the UK SPC (or the US label where noted) but have not had a clinician sign-off. Confirm against the current SmPC before prescribing.

Adult dose

Dose: Acromegaly: recommended starting dose 60 mg to 120 mg every 28 days, varied according to the patient's response (symptomatology and/or biochemical effect) or previous experience with somatostatin analogues.
Route: Deep subcutaneous injection into the superior external quadrant of the buttock, or the upper outer thigh for self-injection; do not fold the skin, insert the needle rapidly and perpendicularly to its full length, alternating right and left side.
Frequency: Every 28 days
Max: 120 mg at 28-day intervals
SPC source: Lanreotide ADVANZ PHARMA 120 mg solution for injection in pre-filled syringe. Acromegaly titration: individualise to response (reduction in symptoms and/or in GH and/or IGF-1). If clinical symptoms and biochemical parameters are not adequately controlled, the dose may be increased to a maximum of 120 mg at 28-day intervals. If complete control is obtained (GH under 1 ng/ml, normalised IGF-1 levels and/or disappearance of symptoms) the dose may be decreased. Patients well controlled on a somatostatin analogue may alternatively be treated with 120 mg every 42-56 days (6 to 8 weeks). Conversion from lanreotide 30 mg: if previously dosed every 14 days start 60 mg every 28 days; if previously dosed every 10 days start 90 mg every 28 days. Long-term monitoring of symptoms, GH and IGF-1 should be routinely carried out in all patients. OTHER INDICATIONS - Grade 1 and a subset of grade 2 (Ki67 index up to 10%) gastroenteropancreatic neuroendocrine tumours of midgut, pancreatic or unknown origin (hindgut origin excluded) in adults with unresectable locally advanced or metastatic disease: 120 mg every 28 days, continued for as long as needed for tumour control. Symptoms associated with neuroendocrine tumours: starting dose 60 to 120 mg every 28 days, adjusted according to the degree of symptomatic relief obtained. Paediatric population: not recommended for use in children and adolescents due to lack of data on safety and efficacy. US labelling differs and should be reconciled by the reviewing clinician: acromegaly starting dosage 90 mg every 4 weeks for 3 months then adjusted; GEP-NETs and carcinoid syndrome 120 mg every 4 weeks; starting dosage 60 mg every 4 weeks for 3 months in acromegalic patients with moderate or severe renal impairment (CLcr less than 60 mL/min) or moderate or severe hepatic impairment (Child-Pugh B or C).

Dose adjustments

Renal

eMC: in patients with impaired renal or hepatic function, no dosage adjustment is necessary due to the wide therapeutic window of lanreotide. (US labelling instead recommends a 60 mg starting dosage every 4 weeks for 3 months in acromegaly with moderate or severe renal impairment - see notes.)

Dose auto-extracted from UK Summary of Product Characteristics (SPC) via the eMC; US FDA prescribing information (openFDA / DailyMed) — cross-check; US labelling may differ from UK — not yet clinician-verified. Always confirm against the product SmPC and your local formulary before prescribing.

Contraindications

  • Hypersensitivity to lanreotide, to somatostatin or related peptides, or to any of the excipients

Side effects

  • Gastrointestinal disorders - diarrhoea, loose stools and abdominal pain (very common); nausea, vomiting, constipation, flatulence, abdominal distension (common)
  • Cholelithiasis (very common), often asymptomatic; biliary dilatation; cholecystitis and cholangitis (uncommon)
  • Injection site reactions - pain, mass, induration, nodule, pruritus (common)
  • Hypoglycaemia, hyperglycaemia, decreased appetite, diabetes mellitus (common)
  • Sinus bradycardia (common); dizziness, headache, lethargy (common); asthenia and fatigue (common)

Interactions

  • Ciclosporin - lanreotide may decrease its relative bioavailability; ciclosporin dose adjustment may be needed to maintain therapeutic levels
  • Bromocriptine - concomitant somatostatin analogues may increase its availability
  • Bradycardia-inducing drugs (e.g. beta blockers) - additive effect on the reduction in heart rate; dose adjustment of the concomitant medicine may be necessary
  • Drugs mainly metabolised by CYP3A4 with a low therapeutic index (e.g. quinidine, terfenadine) - use with caution; somatostatin analogues may decrease their metabolic clearance
  • Insulin and antidiabetic treatment - lanreotide inhibits insulin and glucagon secretion; monitor blood glucose on initiation and dose change and adjust antidiabetic treatment accordingly

Clinical monograph

How it works

It binds somatostatin receptors, predominantly subtypes 2 and 5, inhibiting secretion of growth hormone and various gut hormones and exerting antiproliferative effects on responsive neuroendocrine tumours.

Prescribing in practice

  • It commonly causes gastrointestinal effects and, by reducing gallbladder motility, predisposes to gallstones, so monitor for biliary complications.
  • Given by deep subcutaneous injection at regular intervals; injection technique and site rotation affect tolerability.
  • It can alter glucose homeostasis and may affect requirements for diabetes therapy, so review glycaemic control.

Monitoring

Monitor growth hormone and IGF-1 (in acromegaly) or relevant tumour markers and symptoms, together with blood glucose and gallbladder status.

Counselling the patient

  • Report persistent diarrhoea, abdominal pain, or fatty stools.
  • Seek advice for symptoms suggesting gallstones such as upper abdominal pain after meals.
  • Attend for regular injections to maintain disease control.

Evidence & guidelines

Somatostatin analogues are established in acromegaly and demonstrated antiproliferative benefit in neuroendocrine tumours in the CLARINET trial.

Reference: Endocrine Society Acromegaly Guidelines 2014; CLARINET Trial (NEJM 2014); Drug verified in RxNorm (NLM); confirm dosing against the manufacturer SPC (eMC). Verify against your local formulary and current prescribing references before prescribing. The structured dose values shown have been reviewed by a clinician. Monograph status: clinician-reviewed (2026-07-04).

Related

Curated clinical cross-links plus same-class fallbacks.