A Study of Leuprolide Acetate Depot in Children With Central Precocious Puberty

NCT ID: NCT05341115

Last Updated: 2026-01-13

Study Results

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

80 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-03-14

Study Completion Date

2025-03-10

Brief Summary

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The main aim is to see how leuprolide works to treat central precocious puberty in children. Participants will receive an injection of leuprorelin acetate depot 11.25 mg every 12 weeks during 6 months and will visit their study clinic 6 times to complete some assessments.

Detailed Description

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The drug being tested in this study is called leuprorelin acetate depot 3M. Leuprorelin acetate depot 3M will be tested to treat children who have central precocious puberty. This study will look at the efficacy and safety of leuprorelin acetate depot 3M in the treatment of CPP.

The study will enroll approximately 80 participants with CPP. Participants with a bodyweight of ≥ 20 kg will receive the recommended dose of leuprorelin acetate depot 3M in a 24 weeks Treatment Period followed by a 12 weeks Post-treatment follow-up period. Participants will be assigned to the following drug administration:

• Leuprorelin Acetate Depot 3M 11.25 mg

Participants will receive leuprorelin acetate depot 3M 11.25 mg as subcutaneous (SC) injection on Weeks 0, 12, and 24. The gonadotropin-releasing hormone agonist (GnRHa) stimulation, basal luteinizing hormone (LH), and follicle-stimulating hormone (FSH) levels will be tested pre-dose of every SC injection of the study drug or at premature termination.

This multi-center trial will be conducted in China. The overall time to participate in this study is 38 weeks. Participants will make a follow-up visit to the site at approximately 12 weeks after the last dose of study treatment.

Conditions

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Central Precocious Puberty

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Leuprorelin Acetate Depot 3M 11.25 mg

Participants with CPP having body weight greater than equal to (≥)20 kilograms (kg) received the recommended dose of leuprorelin acetate depot 11.25 milligrams (mg) subcutaneous administration (SC) every 12 weeks based on the standard of 30~180 micrograms (μg)/kg/4 weeks for the 24-week Treatment Period. It was not recommended to exceed the dose above 180 μg/kg.

Group Type EXPERIMENTAL

Leuprorelin Acetate Depot 3M

Intervention Type DRUG

Leuprorelin Acetate Depot 3M SC injections.

Interventions

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Leuprorelin Acetate Depot 3M

Leuprorelin Acetate Depot 3M SC injections.

Intervention Type DRUG

Other Intervention Names

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Leuprolide acetate Depot 3M

Eligibility Criteria

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Inclusion Criteria

1. Maximum age to participate is this study is up to 10 years (child). Early appearance of secondary sexual characteristics: Girls ≤8 years, Boys ≤9years
2. Body weight ≥20 kg
3. According to the National Consensus Statement in China (2015), CPP is diagnosed when secondary sexual characteristics appeared before the age of 8 years in girls and 9 years in boys, a peak LH level \>5.0 IU/L with LH/FSH \>0.6 in stimulating test; evidence of gonadal development by ultrasonography (multiple ovarian follicles ≥4 mm in any ovary or uterine enlargement in females or testicular volume ≥4 mL in males); advanced bone age (BA) ≥1 year; linear growth acceleration with higher growth velocity (GV) than normal children. BA is determined by Greulich and Pyle standards or TW3 standards at screening.

Exclusion Criteria

1. The participant has received GnRHa treatment in a previous clinical study or as a therapeutic agent.
2. The participant has a history or clinical manifestations of significant adrenal or thyroid diseases or intracranial tumor OR has a history of malignant disease.
3. The participant has a history of hypersensitivity or allergies to leuprorelin, or related compounds including any excipients of the compound.
4. The participant has a diagnosis of peripheral precocious puberty.
Maximum Eligible Age

10 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Takeda

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Study Director

Role: STUDY_DIRECTOR

Takeda

Locations

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Beijing Children's Hospital, Capital Medical University

Beijing, Beijing Municipality, China

Site Status

the First A liated Hospital of Sun Yat-sen University

Guangzhou, Guangdong, China

Site Status

The Hospital attached by the Torigji Medical College, Huazhong Science and Technology University.

Wuhan, Hubei, China

Site Status

Provincial Hospital Affiliated to Shandong First Medical University

Jinan, Shandong, China

Site Status

Shanghai Children's Hospital

Shanghai, Shanghai Municipality, China

Site Status

Countries

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China

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Related Links

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https://clinicaltrials.takeda.com/study-detail/137c315e3a744cda?idFilter=%5B%22Leuprorelin-4002%22%5D

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Other Identifiers

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2022-002471-11

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

Leuprorelin-4002

Identifier Type: -

Identifier Source: org_study_id

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