Pasireotide (Signifor)

Peptide

Pasireotide is a novel multi-receptor-targeted somatostatin analog with high affinity for somatostatin receptor subtypes 1, 2, 3, and 5. FDA-approved in 2012, it is the first pituitary-directed medication for Cushing's disease. Available as twice-daily subcutaneous injection (Signifor) and long-acting monthly injection (Signifor LAR) for acromegaly. The Phase III PASPORT trial demonstrated significant urinary free cortisol normalization in Cushing's disease patients.

Quick Answer

What it is

Pasireotide is a novel multi-receptor-targeted somatostatin analog with high affinity for somatostatin receptor subtypes 1, 2, 3, and 5. FDA-approved in 2012, it is the first pituitary-directed medication for Cushing's disease.

Key findings

  • Grade A: Urinary Free Cortisol Normalization (Cushing's Disease)
  • Grade A: ACTH Secretion (Cushing's Disease)
  • Grade A: Cushing's Disease Symptoms (Cushing's Disease)

Safety

No specific caution or interaction language was detected in the current summary/outcome notes.

⚠️ Research Notice

This peptide information is for educational and research purposes only. Peptides may not be FDA-approved for human use and may only be legally available for research purposes. Consult qualified healthcare professionals before considering any peptide compounds.

ℹ️ Quick Facts: Pasireotide (Signifor)

Quick Facts: Pasireotide (Signifor)

  • Best Evidence:Grade A
  • Conditions Studied:2
  • Research Outcomes:10
  • Grade A Findings:5
  • Grade B Findings:1
  • Key Effect:Cushing's Disease
A5
B1
C3
D1
2 conditions · 10 outcomes

Detailed Outcomes

|
A
Urinary Free Cortisol Normalization
Phase III: 25% achieved UFC normalization at 6 months. 76% showed UFC decrease. Rapid reduction within 1-2 months, sustained up to 24 months.
large↓Improves
A
ACTH Secretion
Direct inhibition of ACTH release from corticotroph adenomas. Phase II showed decreased ACTH in majority of patients within 15 days.
large↓Improves
A
Cushing's Disease Symptoms
Improvements in clinical signs including weight, blood pressure, and metabolic parameters maintained over 24 months of treatment.
moderate↓Improves
A
GH Suppression (Acromegaly)
Pasireotide LAR provides GH/IGF-1 control in acromegaly patients, including some resistant to octreotide or lanreotide due to broader receptor binding.
large↓Improves
A
IGF-1 Normalization
Significantly greater IGF-1 normalization rates compared to octreotide LAR in some studies, particularly in patients with inadequate control on first-generation somatostatin analogs.
large↓Worsens
B
Blood Glucose Control
19 human trials and systematic reviews support this finding. Evidence includes systematic reviews/meta-analyses. Human clinical trial data available.
moderate↓Improves
C
Anti-Cancer Activity
6 systematic reviews and preclinical studies support this finding. Evidence includes systematic reviews/meta-analyses. Primarily preclinical evidence.
small↑Improves
C
Safety/Tolerability
4 systematic reviews and preclinical studies support this finding. Evidence includes systematic reviews/meta-analyses. Primarily preclinical evidence.
small↑Improves
C
Kidney Function
3 human trials support this finding. Human clinical trial data available.
small↑Improves
D
Anti-Aging
2 human trials support this finding. Human clinical trial data available.
small↑Improves

Research Citations (47)

Real-world evidence of effectiveness and safety of pasireotide in the treatment of acromegaly: a systematic review and meta-analysis.
(2025)
PMID: 39527181
Efficacy and Safety of Pasireotide in Insulinoma-Associated Hypoglycemia.
(2025)
PMID: 40165498
Short- and long-term glycemic effects of pasireotide in patients with acromegaly: a comprehensive case study with review of literature.
(2025)
PMID: 39842795
Impact of pasireotide on lipid and glucose metabolism in patients with acromegaly: a systematic review and meta-analysis.
(2025)
PMID: 40622518
Efficacy and safety of pasireotide treatment in acromegaly: A systematic review and single arm meta-analysis.
(2024)
PMID: 39349787
Protein kinase C delta mediates Pasireotide effects in an ACTH-secreting pituitary tumor cell line.
(2023)
PMID: 37233978
Pasireotide Versus Octreotide in Preventing Complications After Simultaneous Pancreas-Kidney Transplantation.
(2023)
PMID: 37388858
Pasireotide for Refractory Hypoglycemia in Malignant Insulinoma- Case Report and Review of the Literature.
(2022)
PMID: 35518928
Pasireotide-Induced Shrinkage in GH and ACTH Secreting Pituitary Adenoma: A Systematic Review and Meta-Analysis.
(2022)
PMID: 35846311
Octreotide and pasireotide effects on medullary thyroid carcinoma (MTC) cells growth, migration and invasion.
(2021)
PMID: 33248230

Related Peptides

Pegvisomant (Somavert)

Peptide

1 shared condition · 10 outcomes

Pegvisomant is a genetically modified growth hormone analog that functions as a GH receptor antagonist. FDA-approved in 2003, it is the first and only GH receptor antagonist for acromegaly. It is indicated for patients with inadequate response to surgery, radiation, or somatostatin analogs. Phase III trials showed up to 97% of patients achieving IGF-1 normalization with long-term treatment, making it the most effective medical therapy for biochemical control.

Octreotide (Sandostatin)

Peptide

1 shared condition · 13 outcomes

Octreotide is a synthetic octapeptide analog of somatostatin with prolonged action. FDA-approved in 1988, it is available as immediate-release injection and long-acting repeatable (LAR) formulation. Primary indications include acromegaly, carcinoid syndrome, and neuroendocrine tumors. The PROMID trial demonstrated significant antiproliferative effects in midgut neuroendocrine tumors, and multiple trials confirm efficacy for GH/IGF-1 suppression in acromegaly.

Lanreotide (Somatuline)

Peptide

1 shared condition · 14 outcomes

Lanreotide is a long-acting synthetic octapeptide analog of somatostatin, FDA-approved for treatment of acromegaly and gastroenteropancreatic neuroendocrine tumors (GEP-NETs). The landmark CLARINET trial demonstrated 53% reduction in disease progression risk in metastatic GEP-NETs. Available as an extended-release depot formulation (Somatuline Depot) for once-monthly injection.