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Effectiveness of self- or partner-administration of an extended-release aqueous-gel formulation of lanreotide in lanreotide-naive patients with acromegaly.

ABSTRACT: Surgical resection is often not curative in patients with acromegaly and long-acting somatostatin analogues (lanreotide or octreotide) are often needed. This study assessed the efficacy and safety of self- or partner-administration of lanreotide in patients with acromegaly. This was a six-month, single-arm, open-label study conducted at 13 endocrinology clinics. Fifty-nine patients received deep subcutaneous lanreotide injections every 28 days. Twelve patients started on 120 mg lanreotide and forty-seven started on 90 mg lanreotide. At week 16, the dose was adjusted to 60, 90 or 120 mg based on insulin-like growth factor-1 (IGF-1) levels at week 12. Fifty-nine patients with acromegaly either switched from long-acting octreotide (switch; n = 33) or were somatostatin analogue treatment-naïve or not currently taking long-acting octreotide ("other"; n = 26). The key endpoints included the percentage of patients/partners able to self- or partner-inject lanreotide and those with normal IGF-1 or growth hormone (GH) levels at week 24/early termination. 100% of patients/partners correctly self- (n = 41) or partner-injected (n = 18) lanreotide by week 4. By week 24/early termination, IGF-1 levels were controlled in 93.7% of switch and 46.2% of "other" patients, while GH levels were controlled in 76.9% and 39.1% of patients, respectively. Both IGF-1 and GH were controlled in 73.1% of switch and 30.4% of "other" patients. Most switch patients (81%) reported they preferred lanreotide over long-acting octreotide for future use (P = 0.0001). Self- or partner-administration of lanreotide is generally well tolerated and associated with IGF-1 and GH control in many lanreotide-naïve patients with acromegaly.

SUBMITTER: Salvatori R

PROVIDER: S-EPMC2855862 | biostudies-literature | 2010 Jun

REPOSITORIES: biostudies-literature

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Effectiveness of self- or partner-administration of an extended-release aqueous-gel formulation of lanreotide in lanreotide-naïve patients with acromegaly.

Salvatori Roberto R Nachtigall Lisa B LB Cook David M DM Bonert Vivien V Molitch Mark E ME Blethen Sandra S Chang Stephen S

Pituitary 20100601 2

Surgical resection is often not curative in patients with acromegaly and long-acting somatostatin analogues (lanreotide or octreotide) are often needed. This study assessed the efficacy and safety of self- or partner-administration of lanreotide in patients with acromegaly. This was a six-month, single-arm, open-label study conducted at 13 endocrinology clinics. Fifty-nine patients received deep subcutaneous lanreotide injections every 28 days. Twelve patients started on 120 mg lanreotide and fo ...[more]

PMID: 19898989

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Project description:BACKGROUND:Lanreotide autogel is a somatostatin analog (SSA) approved for the treatment of acromegaly in 73 countries worldwide; however, it is not yet approved in China. The aim of this study was to evaluate the efficacy and safety of lanreotide autogel compared with lanreotide 40?mg prolonged release (PR) in Chinese patients with active acromegaly. METHODS:LANTERN was a phase 3, randomized, open-label, non-inferiority study. Patients with active acromegaly who had undergone surgery ?3?months prior, or were unlikely or unable to undergo surgery, were treated with lanreotide autogel 60/90/120?mg (monthly deep subcutaneous injection) or lanreotide 40?mg PR (intramuscular injection every 7, 10, or 14?days) for 32?weeks. Primary endpoint was mean change-from-baseline in age-adjusted insulin-like growth factor-1 (IGF-1) standard deviation scores (SDS) at the end-of-study. Secondary endpoints included: growth hormone (GH) levels ?2.5??g/L or???1.0??g/L, ?20% reduction in tumor volume (TV) and safety. RESULTS:In total, 128 patients were randomized and received study treatment. Lanreotide autogel was non-inferior to lanreotide 40?mg PR: treatment difference (95% CI) for IGF-1 SDS between groups was -?0.32 (-?0.74, 0.11; per protocol population) and?-?0.27 (-?0.63, 0.09; intention-to-treat [ITT] population), respectively. Reductions in IGF-1 (-?6.453 vs -?7.003) and GH levels (-?9.548??g/L vs -?13.182??g/L), and the proportion of patients with ?1 acromegaly symptom (-?20.3% vs -?32.5%) were observed from baseline to end-of-study in lanreotide autogel and lanreotide 40?mg PR groups, respectively. In the lanreotide autogel group, 45.5% (25/55) patients achieved ?20% reduction in TV compared with 50.9% (25/53) in lanreotide 40?mg PR group (ITT). Safety profiles were similar in both treatment groups. CONCLUSIONS:Lanreotide autogel was non-inferior to lanreotide 40?mg PR in Chinese patients with active acromegaly after 32?weeks of treatment. TRIAL REGISTRATION:Retrospectively registered on ClinicalTrials.gov: NCT02493517 (9 July 2015); prospectively registered on chinadrugtrials.org.cn: CTR20140698 (24 October 2014).

Project description:Patients with active untreated acromegaly show mild to moderate neurocognitive disorders that are associated to chronic exposure to growth hormone (GH) and insulin-like growth factor (IGF-I) hypersecretion. However, it is unknown whether these disorders improve after controlling GH/IGF-I hypersecretion. The aim of this study was to compare neurocognitive functions of patients who successfully underwent GH-secreting adenoma transsphenoidal surgery (cured patients) with patients with naive acromegaly. In addition, we wanted to determine the impact of different clinical and biochemical variables on neurocognitive status in patients with active disease and after long-term cure. A battery of six standardized neuropsychological tests assessed attention, memory and executive functioning. In addition, a quantitative electroencephalography with Low-Resolution Electromagnetic Tomography (LORETA) solution was performed to obtain information about the neurophysiological state of the patients. Neurocognitive data was compared to that of a healthy control group. Multiple linear regression analysis was also conducted using clinical and hormonal parameters to obtain a set of independent predictors of neurocognitive state before and after cure. Both groups of patients scored significantly poorer than the healthy controls on memory tests, especially those assessing visual and verbal recall. Patients with cured acromegaly did not obtain better cognitive measures than naïve patients. Furthermore memory deficits were associated with decreased beta activity in left medial temporal cortex in both groups of patients. Regression analysis showed longer duration of untreated acromegaly was associated with more severe neurocognitive complications, regardless of the diagnostic group, whereas GH levels at the time of assessment was related to neurocognitive outcome only in naïve patients. Longer duration of post-operative biochemical remission of acromegaly was associated with better neurocognitive state. Overall, this data suggests that the effects of chronic exposure to GH/IGF-I hypersecretion could have long-term effects on brain functions.

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Dataset Information

Effectiveness of self- or partner-administration of an extended-release aqueous-gel formulation of lanreotide in lanreotide-naive patients with acromegaly.

Publications

Effectiveness of self- or partner-administration of an extended-release aqueous-gel formulation of lanreotide in lanreotide-naïve patients with acromegaly.

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