Trial reportJournal of endocrinological investigation2026
Utility of a 40-minute LH level after depot leuprolide for diagnosis and treatment monitoring in girls with CPP.
Trial report in Journal of endocrinological investigation, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeGonadotropin-releasing-hormone (GnRH) stimulation test is used for assessment of gonadotropic activation in patients with central precocious puberty (CPP). However, it is invasive and GnRH preparation is not available in all countries. Depot-leuprolide acetate (dLA), used for the treatment of CPP, stimulates gonadotropins briefly before suppressing them. This study aimed to evaluate the utility of luteinizing hormone (LH) level measured 40-minutes after dLA injection for assessing gonadotropic activation compared to GnRH stimulation test.
methodsIn this prospective study, girls with idiopathic CPP were randomized to receive dLA 3.75 mg/4 weeks IM, 11.25 mg/12 weeks SC or 11.25 mg/12 weeks IM. A standard GnRH test was performed before (baseline) and after 6 months of treatment. Forty minutes after the first dLA injection, LH and follicle-stimulating hormone (FSH) levels were measured, and the same measurements were repeated after 6 months of treatment.
resultsThe study recruited 132 girls. Peak LH on the GnRH test did not differ from the 40-minute-post-dLA LH levels [11.0(6.8-17.1) vs. 9.4(5.8-16.6); p = 0.06]. There were no significant differences between the treatment groups. Using the GnRH test peak of LH ≥ 5 IU/L as the gold-standard, ROC analysis identified the optimal cut-off of post-dLA injection LH ≥ 5.4 IU/L on initial measurement (sensitivity = 86%, specificity = 90% and AUC = 0.91). At 6 months, peak LH levels in treatment groups were similarly suppressed (2.1 ± 1.6, 2.5 ± 1.8, 2.2 ± 0.9; p = 0.2011). Furthermore, post- dLA LH cut-off of < 3.07 IU/L yielded an AUC = 0.83, sensitivity = 80.8% and specificity = 75.5%.
conclusionThe 40-minute post-dLA LH provided clinically useful information concerning gonadotropic activity for both diagnosis and treatment monitoring and may provide a practical and clinically informative alternative in selected settings, particularly when standard GnRH testing is not readily available.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.