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PGL4001 Versus GnRH-agonist in Uterine Myomas

A Phase III, Randomised, Parallel Group, Double-blind, Double-dummy, Active Comparator-controlled, Multicenter Study to Assess the Efficacy and Safety of PGL4001 vs GnRH-agonist for Pre-operative Ttt of Symptomatic Uterine Myomas

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00740831
Acronym
PEARLII
Enrollment
301
Registered
2008-08-25
Start date
2008-08-31
Completion date
2010-06-30
Last updated
2012-12-17

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

Conditions

Uterine Myomas

Keywords

Uterine Myomas

Brief summary

This trial will assess the efficacy and safety of PGL4001 versus GnRH agonist, over a 3-month period for the pre-operative treatment of pre-menopausal women suffering from excessive uterine bleeding due to uterine myoma.

Interventions

DRUGPGL4001

tablets

DRUGleuprorelin

solution for injection

Sponsors

PregLem SA
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 50 Years
Healthy volunteers
No

Inclusion criteria

* Be a pre-menopausal woman between 18 and 50 years inclusive. * Have excessive uterine bleeding due to myoma * Have a myomatous uterus with at least one myoma of ≥ 3 cm diameter in size * Be eligible for one surgical procedure: e.g. hysterectomy, myomectomy or others. * If of childbearing potential the subject must be practicing a non-hormonal method of contraception. * Have a Body Mass Index (BMI) ≥ 18 and ≤ 40.

Exclusion criteria

* Has a history of or current uterine, cervical, ovarian or breast cancer. * Has a history of or current endometrium atypical hyperplasia or adenocarcinoma. * Has a known severe coagulation disorder. * Has a history of or current treatment for myoma with a Selective Progesterone Receptor Modulator (SPRM) or a GnRH-agonist. * Has a history of or known current osteoporosis. * Has abnormal hepatic function at study entry. * Has a positive pregnancy test at baseline or is nursing or planning a pregnancy during the course of the study. * Has a current (within twelve months) problem with alcohol or drug abuse. * Is currently enrolled in an investigational drug or device study or has participated in such a study within the last 30 days.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Subjects With Reduction of Uterine Bleeding at Week 13 Visit Defined as Pictorial Blood-loss Assessment Chart (PBAC) Score < 75 at End-of-treatment Visit (Week 13 Visit)3 monthsUterine bleeding was assessed with the use of the PBAC, a validated self-reporting method to estimate menstrual blood loss. Patients recorded daily the number of tampons and towels used and the degree to which individual items were soiled with blood (plus small or large clots). Monthly scores range from 0 (amenorrhea) to more than 500, with higher numbers indicating more bleeding. A slightly stained tampon/towel scores 1, a partially stained tampon/towel scores 5, a completely saturated tampon scores 10 and a completely saturated towel scores 20. Small clots/flooding (2cm) score 1. Large clots/flooding (3cm) score 5. Menorrhagia is defined as a PBAC \> 100 during one menstrual period which approximates to a blood loss of \> 80 mL. A PBAC of 400 corresponds to a blood loss of around 300 mL or approximately 80 tampons/towels used. The week 13 PBAC score was calculated using the last 28 days of treatment.
Co-primary Safety Endpoint: Serum Estradiol Levels at End of Treatment Visit (Week 13 Visit) for PGL4001 Compared With GnRHagonistWeek 13 visitMeasured by log 10 (log pg/ml) transformed values for estradiol (E2) in blood samples
Co-primary Safety Endpoint: % of Subjects Reporting Moderate or Severe Hot Flushes as Adverse Events Throughout the Treatment Period for PGL4001 Compared With GnRH-agonistUp to week 17Difference in percentage of subjects reporting moderate or severe hot flushes: Frequency and severity of this adverse event(as spontaneously reported by patients or elicited by nonleading questions) were recorded on standard forms at every visit up to week 17.

Secondary

MeasureTime frameDescription
Change in the Total Volume of the Three Largest Myomas From Baseline to Week 133 monthsAssessment of PGL4001 capacity to decrease volume of the three largest myomas was performed at each center by means of ultrasonography at baseline and at week 13. The total volume of the three largest myomas assessed at screening and at end-of-treatment visit (Week 13) was analysed on a logarithm transformed scale (to base 10).

Countries

Austria, Belgium, France, Germany, Israel, Italy, Netherlands, Poland, Spain

Participant flow

Participants by arm

ArmCount
A (PGL4001 5mg)
Drug: PGL4001 5mg (oral tablets) and leuproreline matching placebo (intramuscular injection)
97
B (PGL4001 10mg)
Drug: PGL4001 10 mg (oral tablets) and leuproreline matching placebo (intramuscular injection)
103
C (GnRH-agonist)
PGL4001 matching placebo (oral tablets) and leuprorelin 3.75 mg (intramuscular injection)
101
Total301

Baseline characteristics

CharacteristicA (PGL4001 5mg)B (PGL4001 10mg)C (GnRH-agonist)Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
97 Participants103 Participants101 Participants301 Participants
Age Continuous40.1 years
STANDARD_DEVIATION 6.2
40.7 years
STANDARD_DEVIATION 6.3
40.3 years
STANDARD_DEVIATION 6.2
40.3 years
STANDARD_DEVIATION 6.2
Region of Enrollment
Austria
8 participants12 participants8 participants28 participants
Region of Enrollment
Belgium
12 participants16 participants13 participants41 participants
Region of Enrollment
Germany
4 participants0 participants3 participants7 participants
Region of Enrollment
Israel
4 participants6 participants2 participants12 participants
Region of Enrollment
Italy
6 participants7 participants7 participants20 participants
Region of Enrollment
Poland
42 participants34 participants50 participants126 participants
Region of Enrollment
Spain
21 participants28 participants18 participants67 participants
Sex: Female, Male
Female
97 Participants103 Participants101 Participants301 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
75 / 9779 / 10385 / 101
serious
Total, serious adverse events
5 / 974 / 1034 / 101

Outcome results

Primary

Co-primary Safety Endpoint: % of Subjects Reporting Moderate or Severe Hot Flushes as Adverse Events Throughout the Treatment Period for PGL4001 Compared With GnRH-agonist

Difference in percentage of subjects reporting moderate or severe hot flushes: Frequency and severity of this adverse event(as spontaneously reported by patients or elicited by nonleading questions) were recorded on standard forms at every visit up to week 17.

Time frame: Up to week 17

Population: Safety population

ArmMeasureValue (NUMBER)
A (PGL4001 5mg)Co-primary Safety Endpoint: % of Subjects Reporting Moderate or Severe Hot Flushes as Adverse Events Throughout the Treatment Period for PGL4001 Compared With GnRH-agonist11.3 percentage of patients
B (PGL4001 10mg)Co-primary Safety Endpoint: % of Subjects Reporting Moderate or Severe Hot Flushes as Adverse Events Throughout the Treatment Period for PGL4001 Compared With GnRH-agonist9.7 percentage of patients
C (GnRH-agonist)Co-primary Safety Endpoint: % of Subjects Reporting Moderate or Severe Hot Flushes as Adverse Events Throughout the Treatment Period for PGL4001 Compared With GnRH-agonist39.6 percentage of patients
p-value: <0.00195% CI: [-40.6, -14.6]Cochran-Mantel-Haenszel
p-value: <0.00195% CI: [-42, -16.6]Cochran-Mantel-Haenszel
Primary

Co-primary Safety Endpoint: Serum Estradiol Levels at End of Treatment Visit (Week 13 Visit) for PGL4001 Compared With GnRHagonist

Measured by log 10 (log pg/ml) transformed values for estradiol (E2) in blood samples

Time frame: Week 13 visit

Population: Safety population

ArmMeasureValue (MEAN)Dispersion
A (PGL4001 5mg)Co-primary Safety Endpoint: Serum Estradiol Levels at End of Treatment Visit (Week 13 Visit) for PGL4001 Compared With GnRHagonist1.897 log 10 (log pg/ml) E2Standard Error 0.041
B (PGL4001 10mg)Co-primary Safety Endpoint: Serum Estradiol Levels at End of Treatment Visit (Week 13 Visit) for PGL4001 Compared With GnRHagonist1.843 log 10 (log pg/ml) E2Standard Error 0.041
C (GnRH-agonist)Co-primary Safety Endpoint: Serum Estradiol Levels at End of Treatment Visit (Week 13 Visit) for PGL4001 Compared With GnRHagonist1.381 log 10 (log pg/ml) E2Standard Error 0.041
p-value: <0.00195% CI: [-40.6, -14.6]Cochran-Mantel-Haenszel
p-value: <0.00195% CI: [-42, -16.6]Cochran-Mantel-Haenszel
Primary

Percentage of Subjects With Reduction of Uterine Bleeding at Week 13 Visit Defined as Pictorial Blood-loss Assessment Chart (PBAC) Score < 75 at End-of-treatment Visit (Week 13 Visit)

Uterine bleeding was assessed with the use of the PBAC, a validated self-reporting method to estimate menstrual blood loss. Patients recorded daily the number of tampons and towels used and the degree to which individual items were soiled with blood (plus small or large clots). Monthly scores range from 0 (amenorrhea) to more than 500, with higher numbers indicating more bleeding. A slightly stained tampon/towel scores 1, a partially stained tampon/towel scores 5, a completely saturated tampon scores 10 and a completely saturated towel scores 20. Small clots/flooding (2cm) score 1. Large clots/flooding (3cm) score 5. Menorrhagia is defined as a PBAC \> 100 during one menstrual period which approximates to a blood loss of \> 80 mL. A PBAC of 400 corresponds to a blood loss of around 300 mL or approximately 80 tampons/towels used. The week 13 PBAC score was calculated using the last 28 days of treatment.

Time frame: 3 months

Population: Per protocol

ArmMeasureValue (NUMBER)
A (PGL4001 5mg)Percentage of Subjects With Reduction of Uterine Bleeding at Week 13 Visit Defined as Pictorial Blood-loss Assessment Chart (PBAC) Score < 75 at End-of-treatment Visit (Week 13 Visit)90.3 percentage of patients
B (PGL4001 10mg)Percentage of Subjects With Reduction of Uterine Bleeding at Week 13 Visit Defined as Pictorial Blood-loss Assessment Chart (PBAC) Score < 75 at End-of-treatment Visit (Week 13 Visit)97.9 percentage of patients
C (GnRH-agonist)Percentage of Subjects With Reduction of Uterine Bleeding at Week 13 Visit Defined as Pictorial Blood-loss Assessment Chart (PBAC) Score < 75 at End-of-treatment Visit (Week 13 Visit)89.1 percentage of patients
Comparison: As comparison involved two doses of PGL4001 vs GnRH-agonist, Bonferroni correction used to adjust confidence intervals.
Comparison: As comparison involved two doses of PGL4001 vs GnRH-agonist, Bonferroni correction used to adjust confidence intervals.
Secondary

Change in the Total Volume of the Three Largest Myomas From Baseline to Week 13

Assessment of PGL4001 capacity to decrease volume of the three largest myomas was performed at each center by means of ultrasonography at baseline and at week 13. The total volume of the three largest myomas assessed at screening and at end-of-treatment visit (Week 13) was analysed on a logarithm transformed scale (to base 10).

Time frame: 3 months

Population: Per protocol

ArmMeasureValue (MEAN)Dispersion
A (PGL4001 5mg)Change in the Total Volume of the Three Largest Myomas From Baseline to Week 13-0.179 Log 10 (Log cm3) Total volumeStandard Error 0.037
B (PGL4001 10mg)Change in the Total Volume of the Three Largest Myomas From Baseline to Week 13-0.220 Log 10 (Log cm3) Total volumeStandard Error 0.036
C (GnRH-agonist)Change in the Total Volume of the Three Largest Myomas From Baseline to Week 13-0.268 Log 10 (Log cm3) Total volumeStandard Error 0.037
95% CI: [-0.003, 0.181]ANCOVA
95% CI: [-0.043, 0.14]ANCOVA

Source: ClinicalTrials.gov · Data processed: Mar 27, 2026