Efficacy, Safety, and Pharmacokinetics of Leuprolide Mesylate in Subjects With Central Precocious Puberty

NCT ID: NCT05493709

Last Updated: 2025-09-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE3

Total Enrollment

93 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-06-02

Study Completion Date

2026-06-30

Brief Summary

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The study will evaluate if Leuprolide Mesylate is safe and effective in the treatment of subjects with central (gonadotropin-dependent) precocious puberty, when administered as two injections six months apart.

Detailed Description

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This is a multi-center, open-label, single-arm study. All subjects will be pediatric patients with central precocious puberty judged to be candidates for GnRH (gonadotropin releasing hormone) analog therapy, and all will receive two injections of FP-001 42 mg six-month apart in an unblinded fashion.

Conditions

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Puberty; Precocious, Central

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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FP-001 42 mg

All subjects will be pediatric patients with central precocious puberty. They will be injected twice with a depot formulation containing 42 mg of Leuprolide. The first dose on day 0 the second dose on week 24 (six months apart).

Group Type EXPERIMENTAL

Leuprolide Mesylate, Subcutaneous injection of 42 mg Leuprolide

Intervention Type DRUG

All subjects will be pediatric patients with central precocious puberty. They will be injected twice with a depot formulation containing 42 mg of Leuprolide. The first dose on day 0 the second dose on week 24 (six months apart).

Interventions

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Leuprolide Mesylate, Subcutaneous injection of 42 mg Leuprolide

All subjects will be pediatric patients with central precocious puberty. They will be injected twice with a depot formulation containing 42 mg of Leuprolide. The first dose on day 0 the second dose on week 24 (six months apart).

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Females aged 2 to 8 years (inclusive) or males aged 2 to 9 years (inclusive).
2. Confirmed diagnosis of CPP within 12 months of Baseline Visit (Day 0) but have not received prior GnRHa treatment for CPP.
3. Pubertal-type LH response at 60 minutes post GnRHa stimulation test before treatment initiation \> 5 mIU/mL.
4. Clinical evidence of puberty, defined as Tanner stage ≥ 2 for breast development in females or testicular volume ≥ 4 mL in males.
5. Willing and able to participate in the study.
6. Difference between bone age (Greulich and Pyle method) and chronological age ≥ 1 year.
7. Bone age \< 13 years for girls and \< 14 years for boys.
8. Signed Institutional Review Board/Independent Ethics Committee (IRB/IEC)-approved informed consent form (ICF) by one or both parents (per IRB/IEC requirements), by the custodial parent(s) or by the legal guardian(s) (if required).
9. Signed Assent by patients as per IRB/IEC requirements.

Exclusion Criteria

1. Gonadotropin-independent (peripheral) precocious puberty: extra pituitary secretion of gonadotropins or gonadotropin-independent gonadal or adrenal sex steroid secretion. This includes true CPP triggered by other conditions, such as congenital adrenal hyperplasia.
2. Prior or current GnRH treatment for CPP.
3. Non-progressing isolated premature thelarche.
4. Presence of an unstable intracranial tumor or an intracranial tumor requiring neurosurgery or cerebral irradiation. Patients with hamartomas or adenomas not requiring surgery are eligible.
5. Any other condition, chronic illness or treatment that, in the opinion of the Investigator, may interfere with growth or other study endpoints (e.g., chronic steroid use \[except mild topical steroids\], renal failure, diabetes, moderate to severe scoliosis, previously treated intracranial tumor).
6. Prior or current therapy with medroxyprogesterone acetate, growth hormone or insulin-like growth factor-1 (IGF-1).
7. Major medical or psychiatric illness that could interfere with study visits.
8. Diagnosis of short stature (i.e., 2.25 standard deviations (SD) below the mean height for age).
9. Positive urine pregnancy test.
10. Known hypersensitivity to GnRH or related compounds.
11. Any other medical condition or serious intercurrent illness that, in the opinion of the Investigator, may make it undesirable for the patients to participate in the study.
12. Any other condition(s) which could significantly interfere with Protocol compliance.
13. Treatment with an investigational product within 5 half-lives of that product in prior clinical studies before the baseline visit (Day 0).
14. Known history of seizures, epilepsy, and/or central nervous system disorders that may be associated with seizures or convulsions.
15. Prior (within 6 months of Baseline (Day 0)) or current use of medications that, per Investigator opinion, have been associated with seizures or convulsions.
Minimum Eligible Age

2 Years

Maximum Eligible Age

9 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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QPS Holdings LLC

INDUSTRY

Sponsor Role collaborator

Changchun GeneScience Pharmaceutical Co., Ltd.

INDUSTRY

Sponsor Role collaborator

Foresee Pharmaceuticals Co., Ltd.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Bassem Elmankabadi

Role: STUDY_DIRECTOR

Foresee Pharma

Locations

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Arizona University

Tucson, Arizona, United States

Site Status

Rady Children's Hospital- San Diego

San Diego, California, United States

Site Status

Nemours Children's Health Center

Jacksonville, Florida, United States

Site Status

Johns Hopkins - All Children's Hospital

St. Petersburg, Florida, United States

Site Status

Rocky Mountain Clinical Research

Idaho Falls, Idaho, United States

Site Status

Indiana University

Indianapolis, Indiana, United States

Site Status

University of Texas Southwestern Medical Center

Dallas, Texas, United States

Site Status

Cook Children's

Fort Worth, Texas, United States

Site Status

Virginia University

Charlottesville, Virginia, United States

Site Status

Multicare Health System

Tacoma, Washington, United States

Site Status

The Second Hospital of Anhui Medical University

Hefei, Anhui, China

Site Status

Children's Hospital affiliated to Capital Institute of Pediatrics

Beijing, Chaoyang District, China

Site Status

The first Affiliated Hospital of Xiamen University

Xiamen, Fujian, China

Site Status

Pearl River Hospital, Southern Medical University

Guangzhou, Guangdong, China

Site Status

Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University

Guangzhou, Guangdong, China

Site Status

The First Affiliated Hospital, Sun Yat-sen University

Guangzhou, Guangdong, China

Site Status

The Third Affiliated Hospital, Sun Yat-Sen University

Guangzhou, Guangdong, China

Site Status

Tongji Hospital, Tongji Medical College of HUST

Wuhan, Hubei, China

Site Status

Wuhan Children's Hospital, Tongji Medical College of HUST

Wuhan, Hubei, China

Site Status

Hunan Children's Hospital

Changsha, Hunan, China

Site Status

Children's Hospital of Soochow University

Suzhou, Jiangsu, China

Site Status

Jiangxi Provincial Children's Hospital

Nanchang, Jiangxi, China

Site Status

The First Bethune Hospital of Jilin University

Changchun, Jilin, China

Site Status

Shengjing Hospital of China Medical University

Shenyang, Liaoning, China

Site Status

Children's Hospital of Shanxi

Taiyuan, Shanxi, China

Site Status

Chengdu Women's and Children's Central Hospital

Chengdu, Sichuan, China

Site Status

The Children&#39;s Hospital, Zhejiang University School of Medicine

Hangzhou, Zhejiang, China

Site Status

The First Hospital of Jiaxing Affiliated Hospital of Jiaxing University

Jiaxing, Zhejiang, China

Site Status

Ningbo Women & Children's Hospital

Ningbo, Zhejiang, China

Site Status

Beijing Children's Hospital, Capital Medical University

Beijing, , China

Site Status

Children's Hospital of Fudan University

Shanghai, , China

Site Status

Children's Hospital of Shanghai

Shanghai, , China

Site Status

Shanghai Children's Medical Center

Shanghai, , China

Site Status

Tianjin Medical University General Hospital

Tianjin, , China

Site Status

University Pediatric Hospital

San Juan, , Puerto Rico

Site Status

Changhua Christian Hospital

Changhua, , Taiwan

Site Status

Chang Gung Memorial Hospital-Kaohsiung branch

Kaohsiung City, , Taiwan

Site Status

China Medical University Hospital

Taichung, , Taiwan

Site Status

National Cheng Kung University Hospital

Tainan City, , Taiwan

Site Status

Mackay Memorial Hospital

Taipei, , Taiwan

Site Status

LinKou Chang-Gung Memorial Hospital (CGMH-LK)

Taoyuan, , Taiwan

Site Status

Countries

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United States China Puerto Rico Taiwan

Other Identifiers

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FP-001-CP-001

Identifier Type: -

Identifier Source: org_study_id

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