How does lanreotide compare to octreotide?

Both are somatostatin analogs with similar efficacy. Lanreotide is given as deep subcutaneous injection every 4 weeks (Somatuline Depot) vs octreotide LAR intramuscularly every 4 weeks. Lanreotide's autogel formulation allows patient self-administration after training. Efficacy for NETs and acromegaly is comparable. Choice often depends on formulation preference, cost, and insurance coverage.

Can lanreotide shrink neuroendocrine tumors?

Lanreotide primarily stabilizes tumor growth rather than shrinking tumors. The CLARINET trial showed it prolonged progression-free survival by preventing tumor growth, with objective tumor shrinkage in a minority of patients (~10%). For tumor reduction, peptide receptor radionuclide therapy (PRRT) with lutetium-177 DOTATATE is more effective.

Content reviewed by clinical research staff

Last reviewed: March 2026Sources: PubMed, FDA, WADA Prohibited List

Evidence graded using the PeptideScholar A-D system

Lanreotide

AFDA Approved

Moderate Credibility

1 cited studyy · Evidence level A

Somatostatin analog · 8 amino acids · Brand: Somatuline Depot

FDA ApprovedPrescription Required

Lanreotide is a synthetic somatostatin analog approved by the FDA for gastroenteropancreatic neuroendocrine tumors (GEP-NETs) and acromegaly. It is a long-acting depot formulation given every 4 weeks.

Mechanism of Action

Binds to somatostatin receptors (primarily SSTR2 and SSTR5) on neuroendocrine tumor cells and pituitary somatotrophs. Inhibits secretion of growth hormone, insulin, glucagon, gastrin, serotonin, and VIP. In NETs, it controls hormone hypersecretion and has antiproliferative effects.

Benefits

First-line therapy for well-differentiated GEP-NETs (CLARINET trial)^[1]
Prolongs progression-free survival in metastatic NETs^[1]
Controls GH and IGF-1 in acromegaly
Deep subcutaneous autogel formulation

Not Medical Advice — Research-Reported Information Only

This content is for informational purposes only and does not constitute medical advice.

Lanreotide — Dosing in Published Research

Reported Routes: Subcutaneous injection

NETs: 120 mg deep subcutaneous every 4 weeks. Acromegaly: 90 mg every 4 weeks initially, titrated to 120 mg based on GH/IGF-1 response.

The dosing information above is sourced from published research literature and clinical trials. These are not recommendations. Individual responses vary. Always consult a healthcare provider before considering any peptide-based therapy.

Side Effects

GI symptoms (diarrhea, nausea, abdominal pain)
Gallstones and cholelithiasis (long-term use)
Hyperglycemia
Injection site reactions
Bradycardia

Ready to Discuss Lanreotide with a Doctor?

Lanreotide is FDA-approved and available by prescription. Licensed telehealth providers can evaluate if it's right for you.

Find a Prescribing Provider

Telehealth consultations available in most states

FDA ApprovedBoard-Certified DoctorsPrescription if Appropriate

PeptideScholar may receive compensation from provider referrals. This does not influence our editorial content.

Approved Treatment Routing

Lanreotide in PeptideScholar's current approved-treatment dataset

Lanreotide is currently modeled on this site as an approved treatment path for: Unresectable, well- or moderately-differentiated, locally advanced or metastatic gastroenteropancreatic neuroendocrine tumors; acromegaly. Brand names in the current dataset: Somatuline Depot.

Validation Note

This block reflects the site's current structured treatment data and internal routing logic. It is not a substitute for checking current prescribing, labeling, payer, or local regulatory details.

View treatment routing profiles Use provider matcher Review legal guidance

Research & Evidence

RCTN Engl J Med, 2014

Lanreotide in metastatic enteropancreatic neuroendocrine tumors.

Lanreotide 120 mg every 4 weeks significantly prolonged progression-free survival vs placebo in well-differentiated metastatic GEP-NETs

PMID: 25014687

References

1. Lanreotide in metastatic enteropancreatic neuroendocrine tumors.. N Engl J Med, 2014. “Lanreotide 120 mg every 4 weeks significantly prolonged progression-free survival vs placebo in well-differentiated metastatic GEP-NETs” [PMID: 25014687]

Recommended Resources

The Peptide Protocols Handbook

Evidence-based reference guide covering mechanisms, research, and clinical applications.

View on Amazon

Third-Party Peptide Testing

Independent lab analysis to verify peptide purity and authenticity.

Learn More

Links may be affiliate links. See our disclosure.

GLP-1 Support Essentials

Products to help manage side effects and optimize outcomes during treatment.

LMNT Electrolyte Packets

Sodium-focused electrolytes to prevent dehydration and fatigue common in early GLP-1 therapy.

$30–45View on Amazon

High-Protein Shakes (30g)

Convenient protein shakes to maintain muscle mass on reduced GLP-1 caloric intake.

$28–42View on Amazon

Metamucil Fiber Supplement

Soluble fiber powder to manage constipation and GI side effects during GLP-1 treatment.

$20–30View on Amazon

Vitamin B12 (Methylcobalamin 1000mcg)

GLP-1 agonists can reduce B12 absorption over time — methylcobalamin is the most bioavailable form.

$10–20View on Amazon

Ginger Chews for Nausea

Natural nausea relief for the dose-escalation adjustment period, particularly weeks 1–4.

$8–15View on Amazon

Unflavored Whey Protein Isolate

Preserve lean mass without excess carbs or calories when appetite is suppressed.

$35–60View on Amazon

Amazon affiliate links — we may earn a small commission at no extra cost to you. See our disclosure.

Progress Tracking Tools

Monitor weight, body composition, and nutrition to maximize results.

Smart WiFi Body Scale

Tracks BMI, body fat %, and muscle mass — essential for monitoring GLP-1 progress over time.

$30–60View on Amazon

Digital Kitchen Food Scale

Precise gram-level portion tracking helps maximize weight loss results on GLP-1 therapy.

$10–20View on Amazon

Protein Shaker Bottle Set

Leak-proof mixing bottles for protein shakes — supports consistent protein intake on a smaller appetite.

$12–25View on Amazon

Amazon affiliate links — we may earn a small commission at no extra cost to you. See our disclosure.

Lanreotide FAQ

Medical Disclaimer

This content is for informational and educational purposes only and does not constitute medical advice, diagnosis, or treatment recommendations.

Always consult a qualified healthcare provider before starting, stopping, or modifying any treatment. Do not disregard professional medical advice based on information found on this site.

No claims of therapeutic efficacy are made for substances that are not FDA-approved for the discussed indications. Research citations reflect published findings and do not imply endorsement.

Related Peptides

Octreotide

Immune SupportFDA Approved

Octreotide is a synthetic cyclic octapeptide analog of somatostatin, approved by...

Evidence Level AView Details

Get peptide research updates

Weekly evidence summaries and regulatory alerts.

No spam. Unsubscribe anytime.