The Safety and Efficacy of Ozarelix to Treat Men With Lower Urinary Tract Symptoms Due to Enlargement of the Prostate

Spectrum Pharmaceuticals, Inc74 enrolled

Overview

This study is to compare the efficacy and safety of ozarelix 15 mg given intramuscular (IM) 2 weeks apart on the improvement of symptoms and the duration of improvement for up to 6 months in men with Benign Prostatic Hypertrophy (BPH) who are over 50 years of age.

This study is to compare the improvement in symptom scores, peak flow rate and quality of life in men suffering from lower urinary tract symptoms (LUTS) secondary to Benign Prostatic Hypertrophy (BPH) following treatment with ozarelix. Ozarelix is compared to placebo and injections given 14 days apart. Patients are followed for 6 months and both safety and efficacy assessed at monthly visits. Additionally, the impact of treatment on erectile function, if any, as well as Prostate-Specific Antigen (PSA) and Testosterone levels will be monitored. The screening period of 7 days. The duration of the study is 40 weeks, including a 28-day placebo run-in phase (eligible participants entered a placebo run-in phase in which placebo is administered twice over a 2 week period \[Day -28 and Day -14\] and participants are assessed to establish baseline values approximately 14 days following the second placebo injection), study drug is administered on Days 0 and 14 followed by 34 weeks of observation after the last dose of study drug.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Enrollment

Conditions

Benign Prostatic Hypertrophy

Interventions

OzarelixDRUG

Ozarelix 15 mg will be administered IM on Day 0 and Day 14.

PlaceboDRUG

Placebo will be administered IM on Day 0 and Day 14.

Eligibility

Sex: MALEMin age: 50 Years

Medical Language ↔ Plain English

Inclusion Criteria: \- All of the following questions must be answered "Yes" at Visit 1 in order for the participant to participate in the study. * Is the participant at least 50 years old? * Does the participant have clinical signs and symptoms consistent with BPH? * Does the participant have an IPSS 13 at screening (prior to placebo run in)? * Does the participant have a peak urinary flow rate (Qmax) of 4-15 milliliter/second (mL/sec) established on a voided volume of at least 125 mL? * Is the participant willing to agree not to use any other approved or experimental pharmacologic BPH treatments including alpha blockers, 5-alpha reductase inhibitors, anti-cholinergic preparations or herbal preparations at any time during the study? Exclusion Criteria: All of the following questions must be answered "No" at Visit 1 in order for the participant to participate in the study. * Does the participant have a history of prostate cancer or a serum PSA \>10 nanograms per milliliter (ng/mL)? * Has the participant had prior prostate or bladder surgery, pelvic surgery (excluding hernia repair), pelvic radiation or lower urinary tract malignancy? * Does the participant have a prevoid total bladder volume assessed by ultrasound \> 550 mL? * Does the participant have a residual urine volume \> 350 mL by ultrasound?

Locations (13)

Donald Gleason, MD

Tucson, Arizona, United States

Jay Young, MD

Laguna Hills, California, United States

Alexander Gershman, MD

Los Angeles, California, United States

Outcomes

Primary Outcomes

Change From Baseline in International Prostate Symptom Score (IPSS)

IPSS is a validated self-administered index for grading benign prostatic hyperplasia (BPH)-related signs and symptoms. It consists of a set of seven questions. A total score of 1-7 indicates mild disease, 8-19 moderate disease and 20-35 severe disease.

Time frame: 12 weeks

Secondary Outcomes

International Prostate Symptom Score - Quality of Life (IPSS-QOL)

IPSS QOL is a disease-specific quality of life question, referred to as IPSS Question 8. Participants with an IPSS QOL of \<3 at screening will be excluded from this study. The rating is as follows: 0=delighted, 1=pleased, 2=mostly satisfied, 3=mixed, 4=mostly dissatisfied, 5=unhappy, 6=terrible.

Time frame: 36 weeks

BPH Impact Index (BPHII)

BPH Impact Index (BII) is used to assess the impact of BPH on various aspects of health. This 4 question self administered index uses a scoring range from 0 (best) to 13 (worst).

Time frame: 36 weeks

Lower Urinary Tract Symptoms (LUTS) Global Assessment Question (LUTS-GAQ)

The self administered LUTS GAQ is a "yes" or "no" response to a question asking whether overall improvement in LUTS will be observed during the treatment period.

Time frame: 36 weeks

International Index of Erectile Function-15 (IIEF-15)

International Index of Erectile Function Erectile Function Domain (IIEF-EF) will be used to assess the effect of ozarelix on erectile function in sexually active men. IIEF-EF is defined as the sum of the scores for Questions 1-5 and 15 of the IIEF questionnaire. This recall instrument is self-administered by the participant. Individual questions are graded from 1 to 5 with a maximum total score of 30. Lower IIEF-EF scores represent diminished erectile function. Men with a score of ≥ 26 are interpreted as having normal erectile function.

Data from ClinicalTrials.gov

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