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Leuprolide- Formulation A

Phase 3

Prostate Cancer | Small molecule | Oncology |Abbott Laboratories|Last Updated: Jul 19, 2011

Target and mechanism

ModalitySmall molecule

Also known as Leuprolide acetate - Formulation A

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment310

FDA Designations

No designations recorded

Clinical trial landscape

Leuprolide- Formulation A · 1 trial · 1 indication

Phase 3 1
NCT00626431A Study of Leuprolide to Treat Prostate CancerProstate Cancer
COMPLETED310 Analytics
PHASE3COMPLETED
A Study of Leuprolide to Treat Prostate Cancer
Prostate CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Subjects With Suppression of Serum Testosterone (<=50 ng/dL) From Week 4 to Week 48 for Formulation A: Intent-to-treat (ITT) Population for the Primary Endpoint.
Week 4 to Week 48

The percentage of subjects with testosterone suppression (\<= 50 ng/dL) from Week 4 to Week 48 was calculated by the Kaplan-Meier method for right-censored observations. Subjects who failed testosterone suppression were considered failures on the first day of a testosterone measurement (\>50 ng/dL). Subjects who prematurely discontinued without escaping and those who were successfully suppressed through Week 48 were censored at their last measured testosterone value (Day 337 to Day 340 at Week 48). The 90% 2-sided confidence interval was calculated from Kaplan-Meier estimates.

Adjusted Percentage of Subjects With Suppression of Serum Testosterone (<=50 ng/dL) From Week 4 to Week 48 for Formulation A: ITT Population for the Primary Endpoint Adjusted
Week 4 to Week 48

The adjusted percentage of subjects with testosterone suppression (\<= 50 ng/dL) from Week 4 to Week 48 was calculated by the Kaplan-Meier method for right-censored observations. The primary efficacy analysis was adjusted to censor subjects who received an anti-androgen at the last testosterone measurement before use of the anti-androgen. One additional subject was censored because of a laboratory error, at the last measurement before the error. The adjusted 90% 2-sided confidence interval was calculated from Kaplan-Meier estimates.

Percentage of Subjects With Suppression of Serum Testosterone (<=50 ng/dL) From Week 4 to Week 48 for Formulation B: ITT Population for the Primary Endpoint Preplanned
Week 4 to Week 48

The percentage of subjects with testosterone suppression (\<= 50 ng/dL) from Week 4 to Week 48 was calculated by the Kaplan-Meier method for right-censored observations. Subjects who failed testosterone suppression were considered failures on the first day of a testosterone measurement (\>50 ng/dL). Subjects who prematurely discontinued without escaping and those who were successfully suppressed through Week 48 were censored at their last measured testosterone value (Day 337 to Day 340 at Week 48). The 90% 2-sided confidence interval was calculated from Kaplan-Meier estimates.

Secondary Endpoints

Mean Testosterone Concentration (+/- Standard Error) at Each Visit for Formulation A: ITT Population
Baseline, Days 2 and 8, Weeks 2, 4, 8, 14, 20, 24, 26, 30, 34, 40, 46, 48, and Final Visit
Mean Testosterone Concentration (+/- Standard Error) at Each Visit for Formulation B: ITT Population
Baseline, Days 2 and 8, Weeks 2, 4, 8, 14, 20, 24, 26, 30, 34, 40, 46, 48, and Final Visit
Mean (+/- Standard Error) Acute-on-chronic Changes in Testosterone From Pre-injection Levels for Formulation A: ITT Population
Week 24 before the second injection until 2 weeks after Week 24 (2 hours [h], 4 h, 8 h, 1 day [d], 2 d, 3-10 d, and 11-17 d postdose)
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Leuprolide acetate - Formulation AEXPERIMENTALLeuprolide acetate 45 mg, 6-month depot
Leuprolide acetate - Formulation BEXPERIMENTALLeuprolide acetate, 45 mg, 6-month depot

Interventions

NameTypeDescription
Leuprolide acetate - Formulation ADRUGLeuprolide acetate was administered as 2 intramuscular (IM) injections of Formulation A, 45 mg 6 month depot, 24 weeks apart.
Leuprolide acetate - Formulation BDRUGLeuprolide acetate was administered as 2 intramuscular (IM) injections of Formulation B, 45 mg 6 month depot, 24 weeks apart.
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Eligibility Criteria

Age Range18 Years to N/A
SexMALE
Healthy VolunteersNo
Study Sites63

Inclusion Criteria: * Voluntarily sign an IRB-approved informed consent form and any required privacy statement/authorization form. * Pre-trial serum testosterone level \>150 ng/dL. * Histologically-confirmed prostatic adenocarcinoma in Jewett Clinical Stage A2, B, C or D and TNM\* classification c...

Countries:United States
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Competitive Landscape -Prostate Cancer 252 trials