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Phase Ia Trial of HHK001 Compared With Enantone in Patients With Endometriosis

A Phase Ia Clinical Trial to Compare Pharmacokinetics, Pharmacodynamics, Safety and Preliminary Efficacy of HHK001 Versus Enantone in Patients With Endometriosis

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07755956
Enrollment
30
Registered
2026-08-10
Start date
2026-08-31
Completion date
2027-03-31
Last updated
2026-09-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Endometriosis

Keywords

leuprorelin, pharmacokinetics, pharmacodynamics, endometriosis

Brief summary

The goal of this clinical trial is to find out how the study drug HHK001 compares to Enantone (an approved treatment for endometriosis) when given as a single 3.75 mg injection to participants with endometriosis. Both products contain the same active ingredient: leuprorelin acetate. We will check how the body absorbs and responds to each medicine, monitor possible side effects and treatment benefits. Researchers will compare HHK001 to Enantone to test the advantages of its updated formulation.

Interventions

DRUGLeuprorelin Acetate

Participants will receive a single subcutaneous injection of 3.75 mg HHK001 (investigational leuprorelin acetate preparation).

Participants will receive a single subcutaneous injection of 3.75 mg Enantone (commercially-available leuprorelin acetate preparation).

Sponsors

Zhuhai Huahaikang Pharmaceutical Technology Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 45 Years
Healthy volunteers
No

Inclusion criteria

* Voluntarily provide written informed consent; * Female, aged 18-45 years, weight ≥ 40 kg, body mass index 19-28 kg/m²; * The most recent menstrual cycle 21-35 days; * Confirmed diagnosis of endometriosis, and suitable for GnRH agonist; * Cervical cytology test result showing No Intraepithelial Lesion or Malignancy; * No plan for pregnancy, egg cryopreservation or donation, and agree to use effective contraception from screening through 3 months after dosing.

Exclusion criteria

* Allergic to GnRH agonists/antagonists, or history of allergies to ≥3 different substances, or active allergic disease; * With contraindications to rescue medication (ibuprofen); * Current or past medical history of osteoporosis/osteopenia, pituitary tumor, epilepsy, depressive disorder, thromboembolic events, malignant tumors, unexplained abnormal uterine bleeding; * Received any GnRH agonist/antagonist within 12 weeks before screening; * Received medications that may significantly alter hypothalamic-pituitary-gonadal axis hormone levels within 4 weeks before screening; * History of miscarriage within 4 weeks before screening; * History of alcohol dependence, drug abuse or illicit substance use; * Other conditions unsuitable for the trial judged by the investigator.

Design outcomes

Primary

MeasureTime frameDescription
Concentrations of leuprorelin acetateBaseline through 70 days post-doseConcentrations assessed by pre-specified methods
Concentrations of estradiolBaseline through 70 days post-doseConcentrations assessed by pre-specified methods

Secondary

MeasureTime frameDescription
Number of participants with Adverse eventsBaseline through 70 days post-doseAdverse events
Changes from baseline in overall pain scoreBaseline through 70 days post-dosePain scores measured on a 0-100 visual analog scale, with higher scores indicating greater pain severity

Countries

China

Contacts

CONTACTLiang Li
liliang@hhkmed.cn+86 15800440760
STUDY_DIRECTORFeng

Zhuhai Huahaikang Pharmaceutical Technology Co., Ltd.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 3, 2026