ArticleEndocrine connections2025
Predictors of therapeutic failure in GH and prolactin co-secreting pituitary adenomas.
Article in Endocrine connections, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Approach to the patient: precision medicine-guided evaluation and treatment of acromegaly.The Journal of clinical endocrinology and metabolism · 2026Review
- Current controversies in acromegaly care.The Journal of clinical endocrinology and metabolism · 2026Review
- Hormonal staining patterns and clinical outcomes in acromegaly: a 15-year single-center study.Pituitary · 2026Article
- Histopathological and radiological predictors of surgical remission failure in GH-secreting pituitary adenomas.Pituitary · 2026Review
- Prevalence and evolution of hypertension in a large Iberian cohort of patients with acromegaly.Pituitary · 2025Article
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Authors and funding
44 authors.
Funding
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Abstract
Aim: To evaluate which factors are associated with a higher probability of failure to surgical and first-generation somatostatin receptor ligands (fgSRLs) treatment in patients with growth hormone and prolactin co-secreting pituitary adenomas (GH&PRL-PAs). Methods: Acromegaly patients with GH&PRL-PAs included in the ACRO-SPAIN study were enrolled. GH&PRL-PAs were defined as tumors with serum PRL levels above the upper limit of normal and positive immunostaining for GH and PRL, or with PRL levels ≥100 ng/mL when immunostaining data were not available. Results: A total of 126 acromegaly patients with GH&PRL-PAs who underwent transsphenoidal pituitary surgery were included, and 42.1% (n = 53) were biochemically cured at the immediate postoperative evaluation. Knosp grade >2 (odds ratio (OR) 3.48, 95% CI 1.28-9.38), higher serum GH (OR 1.01, 95% CI 1.01-1.08) and IGF-1 (OR 1.60, 95% CI 1.05-2.45) levels were associated with a lower probability of surgical cure. Sixty-eight patients received first-line medical therapy as follows: fgSRLs in monotherapy (n = 22), fgSRL plus cabergoline (n = 37), cabergoline in monotherapy (n = 7) and pegvisomant in monotherapy (n = 2). Among the cases treated with fgSRL in monotherapy, 18.2% (n = 4/22) were resistant. We identified as predictors of fgSRL resistance (in monotherapy and combined with cabergoline) a Knosp grade >2 (OR 8.75, P = 0.003), high GH levels at acromegaly diagnosis (OR 1.02, P = 0.031) and higher postoperative GH levels (OR 1.05, P = 0.006), but no predictors of response to fgSRL in monotherapy were identified. Conclusion: The clinical predictors of surgical failure and of fgSRL resistance in patients with GH&PRL-PAs are similar to those described in acromegaly without PRL, co-secretion. Significance statement: In this article focused on GH&PRL pituitary adenomas, we found that a Knosp grade >2, and higher serum GH and IGF-1 levels were associated with a lower probability of surgical cure in these tumors. Regarding the response to fgSRL in monotherapy, 18% of the patients with GH&PRL pituitary adenomas were classified as resistant. Knosp grade >2 (OR 8.75, P = 0.003), high GH levels at acromegaly diagnosis (OR 1.02, P = 0.031), and higher postoperative GH levels (OR 1.05, P = 0.006) were predictors of non-response to fgSRL (monotherapy or combined with cabergoline), while no predictors of response to fgSRL in monotherapy were identified. Thus, we concluded the clinical predictors of surgical failure and of fgSRL resistance in patients with GH&PRL-PAs are similar to those described in acromegaly without PRL co-secretion.
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