Signifor LAR (pasireotide long acting release)

Our findings suggest pasireotide LAR and pegvisomant as the most effective treatments for IGF-1 normalization. Pasireotide LAR was the best treatment for tumor shrinkage, though the evidence base was limited, requiring cautious interpretation. Their potential role as first-line options after surgery requires further research. Clinical decisions should consider cost, safety and patient-specific parameters to optimize outcomes.

Pasireotide appears to induce durable cystic degeneration in somatotroph tumours, with evidence suggesting sustained antitumor effects that may extend beyond treatment discontinuation. These findings support its potential for a broader therapeutic role, warranting validation in future prospective studies.

P=N/A, N=120, Recruiting, Fondazione Policlinico Universitario Agostino Gemelli IRCCS

This case report highlights the potential benefits of pasireotide in the treatment of refractory headaches, particularly when combined with pegvisomant.  .

Pasireotide long-acting release (PAS-LAR) is a second-generation somatostatin receptor ligand (SRL) approved for acromegaly treatment. These findings suggest that PAS-LAR is an effective option for acromegaly patients resistant to fgSRL, but careful monitoring of glucose levels is essential. The high heterogeneity observed across studies emphasizes the need for identifying PAS-LAR response biomarkers to set-up individualized treatment approaches for optimizing patient outcomes.

Therefore, an individual approach is necessary in the treatment of patients with acromegaly, based on repeated insight to their clinical, biochemical, pathological and imaging characteristics. In this review, we summarize and comment how pituitary tumor size is affected by the treatment with all currently available drugs in acromegaly: long-acting somatostatin receptor ligands of the first generation (octreotide LAR and lanreotide autogel) and the second generation (pasireotide-LAR), as well as pegvisomant (PEG) and cabergoline (CAB).

Pasireotide-LAR allowed the normalization of insulin-like growth factor 1 (IGF1) values in all patients and reduced tumour residue volume where present. A good safety profile and long-term tolerability were also reported.

Participants with acromegaly or CD initiated long-acting pasireotide 40 mg/28 days intramuscularly (acromegaly) or pasireotide 600 μg subcutaneously twice daily during pre-randomization (≤16 weeks). Those who did not need antihyperglycemic medication, were managed with metformin, or received insulin from baseline entered an observational arm ending at 16 weeks...Increasing age, HbA1c, and FPG and pre-diabetes/diabetes were associated with increased likelihood of requiring antihyperglycemic medication during pasireotide treatment. These risk factors may be used to identify those who need more vigilant monitoring to optimize outcomes during pasireotide treatment.

Tumor shrinkage was observed in 6 out of 7 evaluated responders, with no cases of size increase during the long-term follow-up. Pas-LAR is effective and safe and the early identification of responders is possible just after the first administration.

In real-life settings, PAS-LAR significantly decreases symptoms, IGF-1 levels, and the size of adenoma in patients with acromegaly resistant to SRLs. Beneficial effects may occur early after the first injection.

Depending on the route of administration in the parent study, pts received pasireotide long-acting release (LAR; n=303) or subcutaneous (sc; n=38) as monotherapy (n=36), or sc in combination with cabergoline (n=2). Hyperglycemia is an expected AE during pasireotide treatment, often occurring in the first 3 months of therapy. These data in pts with acromegaly, CD or other endocrine disorders support pasireotide as a well-tolerated long-term treatment and affirm that pts continue to receive long-term benefit, with a low discontinuation rate over 8 years.*Unless otherwise noted, all abstracts presented at ENDO must not be released to the press or the public until the date and time of presentation. For oral presentations, the abstracts are embargoed until the session begins.

Clinical efficacy/effectiveness, safety, and HRQoL outcomes in adults with acromegaly were similar and costs lower with EDIs versus standard regimens. Physicians may consider acromegaly treatment at EDIs, especially for patients with good disease control.