Title

Safety, Efficacy, and Pharmacokinetic Behavior of Leuprolide Mesylate in Subjects With Advanced Prostate Carcinoma
An Open-Labeled, Singled-Arm Study of the Safety, Efficacy, and Pharmacokinetic Behavior of Leuprolide Mesylate for Injectable Suspension (LMIS 50 mg) in Subjects With Advanced Prostate Carcinoma
  • Phase

    Phase 3
  • Study Type

    Interventional
  • Intervention/Treatment

    leuprolide ...
  • Study Participants

    137
The study will evaluate if Leuprolide Mesylate is safe and effective in the treatment of subjects with advanced prostate carcinoma, when administered as two injections six months apart.
This is a multi-center, open-label, single-arm study conducted in 2 parts. Part I was established to provide a vanguard of the first 30 subjects who will have more frequent monitoring of their safety. If safety is established, the remainder of the subjects will be entered into the clinical study (i.e., Part II). All subjects will be males with advanced prostate carcinoma judged to be candidates for medical androgen ablation therapy, and all will receive two injections of LMIS 50 mg six-month apart in an unblinded fashion.
Study Started
Aug 31
2014
Primary Completion
Aug 30
2016
Study Completion
Jan 05
2017
Results Posted
Apr 13
2018
Last Update
Mar 05
2019

Drug Leuprolide Mesylate

Subcutaneous injection of 50mg Leuprolide Mesylate

Leuprolide Mesylate 50mg Experimental

All subjects will be males with advanced prostate carcinoma. They will be injected twice with a depot formulation containing 50 mg of Leuprolide Mesylate. The first dose on day 0 the second dose on day 168 (six months apart). Subjects will be followed until day 336.

Criteria

Inclusion Criteria:

Males aged ≥ 18 years old
Males with histologically confirmed carcinoma of the prostate
Subjects who are judged by the attending physician and/or Principal Investigator to be a candidate for androgen ablation therapy
Baseline morning serum testosterone level > 150 ng/dL performed at Screening Visit
Eastern Cooperative Oncology Group (ECOG) Performance score ≤ 2
Life expectancy of at least 18 months

Laboratory values

Absolute neutrophil count ≥ 1,500 cells/µL
Platelets ≥ 100,000 cells/µL
Hemoglobin ≥ 10 gm/dL
Total bilirubin ≤ 1.5 × upper limit of normal (ULN)
AST (SGOT) ≤ 2.5 × ULN
ALT (SGPT) ≤ 2.5 × ULN
Serum creatinine ≤ 1.5 mg/dL
Lipid profile within acceptable range according to investigator's judgment
HgbA1c within acceptable range according to investigator's judgment
Clinical chemistries (K, Na, Mg, Ca and P) within acceptable range according to investigator's judgment
Serum glucose within acceptable range according to investigator's judgement
Urinalysis within normal range according to the investigator's judgment
Agree to use male contraceptive methods during study trial
Based on the Investigator's judgment, the ability to understand the nature of the study and any hazards of participation, and to communicate satisfactorily with the Investigator and to participate in, and to comply with, the requirements of the entire protocol
All aspects of the protocol explained and written informed consent obtained

Exclusion Criteria:

Receipt of chemotherapy, immunotherapy, cryotherapy, radiotherapy, or anti- androgen therapy concomitantly, or within 8 weeks prior to Screening Visit, for treatment of carcinoma of the prostate. Radiation for pain control will be allowed during the study.
Receipt of any vaccination (including influenza) within 4 weeks of Baseline
History of blood donation within 2 months of Baseline
History of anaphylaxis to any LH-RH analogues
Receipt of any LHRH suppressive therapy within 6 months of Baseline
Major surgery, including any prostatic surgery, within 4 weeks of Baseline
History and concomitant clinical and radiographic evidence of central nervous system/spinal cord metastases. Subjects at risk for spinal cord compression will be excluded.
Clinical evidence of active urinary tract obstruction and subjects at risk for urinary obstruction
History of bilateral orchiectomy, adrenalectomy, or hypophysectomy
History or presence of hypogonadism, or receipt of exogenous testosterone supplementation within 6 months of Baseline
Clinically significant abnormal ECG and/or history of clinically significant cardiovascular disease as judged by the investigator
History of drug and/or alcohol abuse within 6 months of Baseline
Contraindication to leuprolide or an LHRH agonist as indicated on package labeling
Use of 5-alpha reductase inhibitor within the last 6 months of Baseline
History or presence of insulin-dependent diabetes mellitus (Type I). Presence of well controlled diabetes mellitus Type II will be allowed
Use of systemic corticosteroids at a dose >10 mg/d or anti-androgens
Use of any investigational agent within 4 weeks of Baseline
Use of any over-the-counter (OTC) medication within 4 weeks of Baseline except for those listed in the permitted Concomitant Treatment section.
Uncontrolled intercurrent illness that would jeopardize the subject's safety, interfere with the objectives of the protocol, or limit the subject's compliance with study requirements, as determined by the Investigator in consultation with the Sponsor

Summary

Leuprolide Mesylate 50mg

All Events

Event Type Organ System Event Term Leuprolide Mesylate 50mg

Efficacy of Leuprolide Mesylate (LMIS 50mg)

The percentage of subjects with a serum testosterone concentration suppressed to castrate levels (≤ 50 ng/dL) following the first injection of LMIS 50 mg from Day 28 through Day 336 (remaining duration of the study).

Leuprolide Mesylate 50mg

97.0
percentage of participants (Mean)
95% Confidence Interval: 92.2 to 98.9

Number of Participants With Adverse Events (AEs)

Safety analysis was based on the safety information from the laboratory evaluations, AEs, and SAEs.

Leuprolide Mesylate 50mg

Drug-related AEs

SAE

TEAE

Age, Continuous

71.1
years (Mean)
Standard Deviation: 8.70

Ethnicity (NIH/OMB)

Race (NIH/OMB)

Region of Enrollment

Sex: Female, Male

Overall Study

Leuprolide Mesylate 50mg