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A Study of Prometic Plasminogen IV Infusion in Subjects With Hypoplasminogenemia

A Phase 2/3, Open-Label, Repeat-Dose Study of the Pharmacokinetics, Efficacy, and Safety of Prometic Plasminogen Intravenous Infusion in Subjects With Hypoplasminogenemia

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02690714
Enrollment
15
Registered
2016-02-24
Start date
2016-05-04
Completion date
2018-10-08
Last updated
2021-08-02

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

Conditions

Congenital Plasminogen Deficiency, Hypoplasminogenemia

Brief summary

This is a Phase 2/3 pivotal study to evaluate pharmacokinetics (PK), efficacy, and safety of Prometic Plasminogen (Human) Intravenous Lyophilized Solution, the investigational medicinal product (IMP), in pediatric and adult subjects with hypoplasminogenemia.

Detailed description

This is a Phase 2/3, open-label, repeat-dose study of the PK, efficacy, and safety of the IMP, in pediatric and adult subjects with hypoplasminogenemia. The study consists of a screening period and 3 treatment segments (Segment 1,2, and 3). Subjects who have documented individual PK profiles do not need to undergo Segment 1 and can proceed directly to Segment 2. Subjects in Segment 1 will receive a single dose of 6.6 mg/kg IMP infusion. Blood samples for PK analysis will be drawn prior to infusion and subsequently through 96 hours after the infusion to establish individual PK profiles. The sample drawn prior to infusion will be used to measure the subject's baseline anti-plasminogen antibody, plasminogen activity and antigen as well as D-dimer levels. The resulting PK profile will be used to determine each subject's dosing interval in Segment 2. Based on individual PK profiles from Segment 1 subjects will receive 6.6 mg/kg IMP infusion every second, third, or fourth day for 12 weeks in Segment 2. For subjects who directly enter Segment 2, baseline assessments will be conducted before the first dose of IMP, including a blood sample to measure the baseline anti-plasminogen antibody, plasminogen activity and antigen as well as D-dimer levels. Subjects will visit the study sites on Week 1 and subsequently every 4 weeks, and receive the IMP infusion at the study site. Blood samples will be obtained at each study visit at Weeks 4, 8 and 12 and by a home health nurse at Weeks 2, 6 and 10. Subjects will undergo clinical assessments of the disease, including but not limited to: photographic measurements of visible lesions, spirometry for subjects with pulmonary involvement, and imaging study of nonvisible lesions, as applicable. Plasma samples will be drawn before IMP administration every 2 weeks to measure the trough levels of plasminogen activity and antigen, and D-dimer. At the end of Segment 2, subjects will have the option to participate in Segment 3 where they will continue to receive IMP for an additional 36 weeks in Norway, and until product licensing or study termination by the sponsor for subjects in the United States. Subjects will return to the study sites for assessments every 3 months to monitor subjects' clinical status and plasminogen trough levels. Subjects at the Norway site in Segment 3 should return to the study site for a safety follow-up visit 30 days after the final IMP dose. Due to the delay in product approval, subjects at the US site in Segment 3 will be allowed to enroll in treatment protocol 2002C018G and continue ongoing IMP treatment without any break in treatment. If subjects decide to not enter treatment protocol 2002C018G, then they will stop IMP and return to the study site for a safety follow-up visit 30 days after the final IMP dose. The primary objective of this study is to achieve an increase of individual trough plasminogen activity by at least an absolute 10% (i.e., 10 U/dL) from baseline during the 12 weeks of plasminogen replacement therapy in Segment 2; and to evaluate the efficacy of plasminogen replacement therapy on clinically evident or visible symptoms of hypoplasminogenemia during the 48 weeks of dosing in Segments 2 and 3.

Interventions

Prometic Plasminogen (Human) intravenous infusion given as single dose of 6.6 mg/kg in Segment 1 and repeat doses in Segments 2 and 3.

Sponsors

Prometic Biotherapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
2 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Subject is a male or female between the ages of 2 and 80 years (inclusive), is able to provide informed consent or assent, and agrees to use contraceptive methods during the study (unless documented as biologically or surgically sterile or has not reached reproductive age). * Subject has documented history of hypoplasminogenemia and has plasminogen activity level ≤ 45%. * Subject had a documented history of lesions and symptoms consistent with a diagnosis of congenital plasminogen deficiency. * Subject has documented vaccination to hepatitis A virus (HAV) and hepatitis B virus (HBV), or has received the first dose of HAV and HBV vaccine prior to the first dose of IMP and is scheduled to receive the second vaccine dose.

Exclusion criteria

* Subject has uncontrolled hypertension; clinical or laboratory evidence of an intercurrent infection; a malignancy within 3 years, except for basal or squamous cell skin cancer; a psychiatric disorder; chronic or acute clinically significant inter-current illness; or evidence of renal and hepatic dysfunction. * Subject is pregnant or lactating * Subject has a history of anaphylactic reactions to blood or blood products that may interfere with participation in study in the opinion of the investigator. * Subject is a previous organ transplant recipient; has received exogenous plasminogen within 2 weeks of the screening; has a history of anaphylactic reactions to blood or blood products; or has received another IRB-approved interventional clinical trial of a drug, biologic, or device within 30 days before the first dose of the IMP.

Design outcomes

Primary

MeasureTime frameDescription
Overall Clinical Success in Number and Size of Lesions as Measured by Photographic or Other Imaging Modality Depending on the Organ System Affected or Change in Affected Organ Functionality at 48 Weeks.48 weeksOverall clinical success was defined as 50% of participants with visible or other measurable lesions achieving at least a 50% improvement in lesion number/size or functionality impact from baseline. Visible lesions were defined as lesions that could be imaged and analyzed with digital photography. Non-visible lesions were defined as lesions whose dimensions could have been assessed by medical imaging studies (eg, computed tomography, magnetic resonance imaging, ultrasound, etc) or functional assessments (eg, spirometry, audiogram, oximetry, etc).Visible lesions that had both a length and width as measured by the 1mm scale, were referred to as measurable lesions, and visible lesions that were too small to measure by the 1mm scale (length and/or width could not have been measured) were referred to as non-measurable lesions.
Number and Percentage of Particpants Who Achieved the Target Plasminogen Activity Trough Levels for at Least 3 Measurements in 12 Weeks During Segment 212 weeksPlasminogen activity is a measurement of functional plasminogen levels and is therefore the most accurate and specific method to quantify active Plasminogen (Human) Intravenous concentration in participants' plasma. Primary endpoint success was defined as at least 80% of evaluable participants (ie, 8 or more) achieving the target trough levels for at least 3 measurements in 12 weeks. The target trough level was defined as an increase in plasminogen activity level of at least an absolute 10% (10 U/dL) from the participant's individual baseline level.

Secondary

MeasureTime frameDescription
Clinical Global Impression-Global Improvement (CGI-I) Scores at Week 4848 WeeksCGI-I scores are measured at 12 and 48 weeks after study drug treatment. The CGI-I Scale is a single, clinician completed scale designed to capture the clinician's impression of the participant's disease improvement over time. For this scale, clinicians were asked to consider their experience in this population and rate the change relative to the participant's state at Baseline using a 7-point scale (1 = very much improved, 7 = very much worse).
Number of Participants With Improved Quality of Life (QOL) Score After 12 Weeks of Study Treatment12 weeksQuality of life score (QOL) was measured at baseline and at 12 and 48 weeks after study drug treatment. For the QOL assessment, participants were asked to rate their overall QOL using an 11-point scale (0 = non-functioning, 10 = normal; The QOL scale was adapted from a scale developed by the American Chronic Pain Association.
Number of Participants With Improved Quality of Life (QOL) Score After 48 Weeks of Study Treatment48 weeksQuality of life score (QOL) was measured at baseline and at 12 and 48 weeks after study drug treatment. For the QOL assessment, participants were asked to rate their overall QOL using an 11-point scale (0 = non-functioning, 10 = normal; The QOL scale was adapted from a scale developed by the American Chronic Pain Association.
Plasminogen Activity Trough Levels Between Week 2 and Week 120Week 2 to Week 120Plasminogen activity trough levels were measured at Weeks 2, 4, 6, 8, 10, 12, 24, 36, 48, 60, 72, 84, 96, 108, and 120.
Plasminogen Antigen Trough Levels Between Week 2 and Week 120Week 2 to Week 120Plasminogen antigen trough levels were measured at Weeks 2, 4, 6, 8, 10, 12, 24, 36, 48, 60, 72, 84, 96, 108, and 120.
Half-life (t1/2) of Plasminogen Activity After First Dose and at Week 12First dose and 12 weekst1/2 is time required for the plasma concentration of Plasminogen to decrease 50% in the final stage of its elimination
Overall Clinical Success in Number and Size of Lesions as Measured by Photographic or Other Imaging Modality Depending on the Organ System Affected or Change in Affected Organ Functionality at 12 Weeks12 WeeksOverall clinical success was defined as 50% of participants with visible or other measurable lesions achieving at least a 50% improvement in lesion number/size or functionality impact from baseline. Visible lesions were defined as lesions that could be imaged and analyzed with digital photography. Non-visible lesions were defined as lesions whose dimensions could have been assessed by medical imaging studies (eg, computed tomography, magnetic resonance imaging, ultrasound, etc) or functional assessments (eg, spirometry, audiogram, oximetry, etc).Visible lesions that had both a length and width as measured by the 1mm scale, were referred to as measurable lesions, and visible lesions that were too small to measure by the 1mm scale (length and/or width could not have been measured) were referred to as non-measurable lesions.
Cmax of Plasminogen Activity After First Dose and at Week 12First dose and 12 weeksCmax is the maximum plasma concentration of Plasminogen
Cl of Plasminogen Activity After First Dose and at Week 12First dose and 12 weeksCl is the volume of plasma cleared of Plasminogen per unit time
AUCinf of Plasminogen Activity After First Dose and at Week 12First dose and 12 weeksAUCinf is the area under the plasma concentration-curve of Plasminogen from time 0 extrapolated to infinity
MRTlast for Plasminogen Activity After First Dose and at Week 12First dose and 12 weeksMRTLast is the mean residence time of Plasminogen from time 0 to the last measured concentration
Vss for Plasminogen Activity After First Dose and at Week 12First dose and 12 weeksVss is the apparent volume of distribution at steady state of Plasminogen
AUClast of Plasminogen Activity After the First Dose and at Week 12First dose and 12 weeksAUCLast is the area under the plasma concentration-curve of Plasminogen from time 0 to the last measured concentration.
Clinical Global Impression-Global Improvement (CGI-I) Scores at Week 1212 weeksCGI-I scores are measured at 12 and 48 weeks after study drug treatment. The CGI-I Scale is a single, clinician completed scale designed to capture the clinician's impression of the participant's disease improvement over time. For this scale, clinicians were asked to consider their experience in this population and rate the change relative to the participant's state at Baseline using a 7-point scale (1 = very much improved, 7 = very much worse).

Countries

Norway, United States

Participant flow

Recruitment details

This study was conducted at 2 sites, 1 in the United States (US) and 1 in Norway. The first participant was screened in May 2016 and the last participant visit was in October 2018.

Participants by arm

ArmCount
6.6 mg/kg Plasminogen (Human) Intravenous
6.6 mg/kg Plasminogen (Human) Intravenous given every 2 to 4 days by a 10- to 30-minute intravenous infusion Plasminogen (Human) intravenous: Prometic Plasminogen (Human) intravenous infusion given as single dose of 6.6 mg/kg in Segment 1 and repeat doses in Segments 2 and 3.
15
Total15

Withdrawals & dropouts

PeriodReasonFG000
Post-Wk 48: Safety Week 48 to EoS VisitPhysician Decision1
Post-Wk 48: Safety Week 48 to EoS VisitWithdrawal by Subject1

Baseline characteristics

Characteristic6.6 mg/kg Plasminogen (Human) Intravenous
Age, Continuous23.0 years
STANDARD_DEVIATION 13.05
Age, Customized
12-17 years
2 Participants
Age, Customized
> 17 years
9 Participants
Age, Customized
2-11 years
4 Participants
Number of Visible and Assesable Non-Visible Lesions
Non-visible lesions
15 Number of lesions
Number of Visible and Assesable Non-Visible Lesions
Number of lesions analyzed
47 Number of lesions
Number of Visible and Assesable Non-Visible Lesions
Visible lesions
32 Number of lesions
Plasminogen Activity
Plasminogen activity 11-20%
4 Participants
Plasminogen Activity
Plasminogen activity 21-30%
6 Participants
Plasminogen Activity
Plasminogen activity 31-40%
1 Participants
Plasminogen Activity
Plasminogen activity 41-45%
1 Participants
Plasminogen Activity
Plasminogen activity >45%
0 Participants
Plasminogen Activity
Plasminogen activity <5-10%
3 Participants
Plasminogen Activity21.1 % activity
STANDARD_DEVIATION 10.83
Plasminogen antigen
Plasminogen antigen <0.5-3.0 mg/dL
4 Participants
Plasminogen antigen
Plasminogen antigen >20.0 mg/dL
0 Participants
Plasminogen antigen
Plasminogen antigen 3.1-6.0 mg/dL
10 Participants
Plasminogen antigen
Plasminogen antigen 6.1-20.0 mg/dL
1 Participants
Plasminogen antigen4.7 mg/dL
STANDARD_DEVIATION 3.7
Quality of Life Assessment
QOL score = 0
0 Participants
Quality of Life Assessment
QOL score = 1
0 Participants
Quality of Life Assessment
QOL score = 10
9 Participants
Quality of Life Assessment
QOL score = 2
0 Participants
Quality of Life Assessment
QOL score = 3
0 Participants
Quality of Life Assessment
QOL score = 4
0 Participants
Quality of Life Assessment
QOL score = 5
0 Participants
Quality of Life Assessment
QOL score = 6
1 Participants
Quality of Life Assessment
QOL score = 7
3 Participants
Quality of Life Assessment
QOL score = 8
1 Participants
Quality of Life Assessment
QOL score = 9
1 Participants
Race/Ethnicity, Customized
Hispanic/Latino
1 Participants
Race/Ethnicity, Customized
Non-Hispanic/Latino
14 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
15 Participants
Region of Enrollment
Norway
3 Participants
Region of Enrollment
United States
12 Participants
Sex: Female, Male
Female
11 Participants
Sex: Female, Male
Male
4 Participants
Visible and Non-Visible Lesions by Participant
>= 1 Visible or non-visible lesion
11 Participants
Visible and Non-Visible Lesions by Participant
None
4 Participants
Weight60.37 Kg
STANDARD_DEVIATION 26.803

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 15
other
Total, other adverse events
15 / 15
serious
Total, serious adverse events
3 / 15

Outcome results

Primary

Number and Percentage of Particpants Who Achieved the Target Plasminogen Activity Trough Levels for at Least 3 Measurements in 12 Weeks During Segment 2

Plasminogen activity is a measurement of functional plasminogen levels and is therefore the most accurate and specific method to quantify active Plasminogen (Human) Intravenous concentration in participants' plasma. Primary endpoint success was defined as at least 80% of evaluable participants (ie, 8 or more) achieving the target trough levels for at least 3 measurements in 12 weeks. The target trough level was defined as an increase in plasminogen activity level of at least an absolute 10% (10 U/dL) from the participant's individual baseline level.

Time frame: 12 weeks

Population: Pharmacokinetic Population included any participant who had completed Segment 2 dosing and had provided at least 3 blood samples to measure plasminogen activity trough levels.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Plasminogen (Human) IntravenousNumber and Percentage of Particpants Who Achieved the Target Plasminogen Activity Trough Levels for at Least 3 Measurements in 12 Weeks During Segment 215 Participants
Primary

Overall Clinical Success in Number and Size of Lesions as Measured by Photographic or Other Imaging Modality Depending on the Organ System Affected or Change in Affected Organ Functionality at 48 Weeks.

Overall clinical success was defined as 50% of participants with visible or other measurable lesions achieving at least a 50% improvement in lesion number/size or functionality impact from baseline. Visible lesions were defined as lesions that could be imaged and analyzed with digital photography. Non-visible lesions were defined as lesions whose dimensions could have been assessed by medical imaging studies (eg, computed tomography, magnetic resonance imaging, ultrasound, etc) or functional assessments (eg, spirometry, audiogram, oximetry, etc).Visible lesions that had both a length and width as measured by the 1mm scale, were referred to as measurable lesions, and visible lesions that were too small to measure by the 1mm scale (length and/or width could not have been measured) were referred to as non-measurable lesions.

Time frame: 48 weeks

Population: Efficacy Population Week 48-Segment 3 included all 15 enrolled participants who completed the Week 48 visit at the time of the data cut-off date of 14Dec2017. This analysis included 11 participants with 47 visible and/or non-visible lesions at baseline. All 15 participants were assessed, however only 11 participants had visible and/or non-visible lesions at baseline.

ArmMeasureCategoryValue (COUNT_OF_UNITS)
Plasminogen (Human) IntravenousOverall Clinical Success in Number and Size of Lesions as Measured by Photographic or Other Imaging Modality Depending on the Organ System Affected or Change in Affected Organ Functionality at 48 Weeks.Total Visible/Non-Visible lesions resolved (%)34 Lesions
Plasminogen (Human) IntravenousOverall Clinical Success in Number and Size of Lesions as Measured by Photographic or Other Imaging Modality Depending on the Organ System Affected or Change in Affected Organ Functionality at 48 Weeks.Total Visible/Non-Visible lesions improved (%)10 Lesions
Plasminogen (Human) IntravenousOverall Clinical Success in Number and Size of Lesions as Measured by Photographic or Other Imaging Modality Depending on the Organ System Affected or Change in Affected Organ Functionality at 48 Weeks.Not applicable (not assessed)3 Lesions
Secondary

AUCinf of Plasminogen Activity After First Dose and at Week 12

AUCinf is the area under the plasma concentration-curve of Plasminogen from time 0 extrapolated to infinity

Time frame: First dose and 12 weeks

Population: Pharmacokinetic Population included any participant who had completed Segment 2 dosing and had provided at least 3 blood samples to measure plasminogen activity trough levels.

ArmMeasureGroupValue (MEAN)Dispersion
Plasminogen (Human) IntravenousAUCinf of Plasminogen Activity After First Dose and at Week 12Mean (SD) AUCinf of plasminogen after first dose3605.8 hr*%Standard Deviation 1023.88
Plasminogen (Human) IntravenousAUCinf of Plasminogen Activity After First Dose and at Week 12Mean (SD) AUCinf of plasminogen at Week 125731.8 hr*%Standard Deviation 1431.7
Secondary

AUClast of Plasminogen Activity After the First Dose and at Week 12

AUCLast is the area under the plasma concentration-curve of Plasminogen from time 0 to the last measured concentration.

Time frame: First dose and 12 weeks

Population: Pharmacokinetic Population included any participant who had completed Segment 2 dosing and had provided at least 3 blood samples to measure plasminogen activity trough levels.

ArmMeasureGroupValue (MEAN)Dispersion
Plasminogen (Human) IntravenousAUClast of Plasminogen Activity After the First Dose and at Week 12Mean (SD) AUClast after first dose of plasminogen3063.6 hr*%Standard Deviation 778.67
Plasminogen (Human) IntravenousAUClast of Plasminogen Activity After the First Dose and at Week 12Mean (SD) AUClast at Week 124656.0 hr*%Standard Deviation 1012.66
Secondary

Clinical Global Impression-Global Improvement (CGI-I) Scores at Week 12

CGI-I scores are measured at 12 and 48 weeks after study drug treatment. The CGI-I Scale is a single, clinician completed scale designed to capture the clinician's impression of the participant's disease improvement over time. For this scale, clinicians were asked to consider their experience in this population and rate the change relative to the participant's state at Baseline using a 7-point scale (1 = very much improved, 7 = very much worse).

Time frame: 12 weeks

Population: CGI-I population included all 15 enrolled participants who completed the week 12 (and week 48) visit.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Plasminogen (Human) IntravenousClinical Global Impression-Global Improvement (CGI-I) Scores at Week 12CGI score 0 = Not assessed: Week 120 Participants
Plasminogen (Human) IntravenousClinical Global Impression-Global Improvement (CGI-I) Scores at Week 12CGI score 1 = Very much improved: Week 1211 Participants
Plasminogen (Human) IntravenousClinical Global Impression-Global Improvement (CGI-I) Scores at Week 12CGI score 2 = Much improved : Week 124 Participants
Plasminogen (Human) IntravenousClinical Global Impression-Global Improvement (CGI-I) Scores at Week 12CGI score 3 = Minimally improved : Week 120 Participants
Plasminogen (Human) IntravenousClinical Global Impression-Global Improvement (CGI-I) Scores at Week 12CGI score 4= No change : Week 120 Participants
Plasminogen (Human) IntravenousClinical Global Impression-Global Improvement (CGI-I) Scores at Week 12CGI score 5 = Minimally worse : Week 120 Participants
Plasminogen (Human) IntravenousClinical Global Impression-Global Improvement (CGI-I) Scores at Week 12CGI score 6 = Much worse : Week 120 Participants
Plasminogen (Human) IntravenousClinical Global Impression-Global Improvement (CGI-I) Scores at Week 12CGI score 7 = Very much worse : Week 120 Participants
Secondary

Clinical Global Impression-Global Improvement (CGI-I) Scores at Week 48

CGI-I scores are measured at 12 and 48 weeks after study drug treatment. The CGI-I Scale is a single, clinician completed scale designed to capture the clinician's impression of the participant's disease improvement over time. For this scale, clinicians were asked to consider their experience in this population and rate the change relative to the participant's state at Baseline using a 7-point scale (1 = very much improved, 7 = very much worse).

Time frame: 48 Weeks

Population: CGI-I population included all 15 enrolled participants who completed the week 48 (and week 12) visit.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Plasminogen (Human) IntravenousClinical Global Impression-Global Improvement (CGI-I) Scores at Week 48CGI Score 0= Not assessed: Week 480 Participants
Plasminogen (Human) IntravenousClinical Global Impression-Global Improvement (CGI-I) Scores at Week 48CGI Score 1= Very much improved: Week 4813 Participants
Plasminogen (Human) IntravenousClinical Global Impression-Global Improvement (CGI-I) Scores at Week 48CGI Score 2= Much improved: Week 482 Participants
Plasminogen (Human) IntravenousClinical Global Impression-Global Improvement (CGI-I) Scores at Week 48CGI Score 3= Minimally improved: Week 480 Participants
Plasminogen (Human) IntravenousClinical Global Impression-Global Improvement (CGI-I) Scores at Week 48CGI Score 4= No change: Week 480 Participants
Plasminogen (Human) IntravenousClinical Global Impression-Global Improvement (CGI-I) Scores at Week 48CGI Score 5= Minimally worse: Week 480 Participants
Plasminogen (Human) IntravenousClinical Global Impression-Global Improvement (CGI-I) Scores at Week 48CGI Score 6= Much worse: Week 480 Participants
Plasminogen (Human) IntravenousClinical Global Impression-Global Improvement (CGI-I) Scores at Week 48CGI Score 7= Very much worse: Week 480 Participants
Secondary

Cl of Plasminogen Activity After First Dose and at Week 12

Cl is the volume of plasma cleared of Plasminogen per unit time

Time frame: First dose and 12 weeks

Population: Pharmacokinetic Population included any participant who had completed Segment 2 dosing and had provided at least 3 blood samples to measure plasminogen activity trough levels.

ArmMeasureGroupValue (MEAN)Dispersion
Plasminogen (Human) IntravenousCl of Plasminogen Activity After First Dose and at Week 12Mean (SD) Cl of plasminogen after first dose1.44 mL/hr/kgStandard Deviation 0.46
Plasminogen (Human) IntravenousCl of Plasminogen Activity After First Dose and at Week 12Mean (SD) Cl of plasminogen at Week 120.92 mL/hr/kgStandard Deviation 0.257
Secondary

Cmax of Plasminogen Activity After First Dose and at Week 12

Cmax is the maximum plasma concentration of Plasminogen

Time frame: First dose and 12 weeks

Population: Pharmacokinetic Population included any participant who had completed Segment 2 dosing and had provided at least 3 blood samples to measure plasminogen activity trough levels.

ArmMeasureGroupValue (MEAN)Dispersion
Plasminogen (Human) IntravenousCmax of Plasminogen Activity After First Dose and at Week 12Mean (SD) Cmax of plasminogen after first dose95 % plasminogen activityStandard Deviation 23.5
Plasminogen (Human) IntravenousCmax of Plasminogen Activity After First Dose and at Week 12Mean (SD) Cmax of plasminogen at Week 12125 % plasminogen activityStandard Deviation 23.3
Secondary

Half-life (t1/2) of Plasminogen Activity After First Dose and at Week 12

t1/2 is time required for the plasma concentration of Plasminogen to decrease 50% in the final stage of its elimination

Time frame: First dose and 12 weeks

Population: Pharmacokinetic Population included any participant who had completed Segment 2 dosing and had provided at least 3 blood samples to measure plasminogen activity trough levels.

ArmMeasureGroupValue (MEAN)Dispersion
Plasminogen (Human) IntravenousHalf-life (t1/2) of Plasminogen Activity After First Dose and at Week 12Mean (SD) t1/2 of plasminogen after the first dose34 HoursStandard Deviation 11.73
Plasminogen (Human) IntravenousHalf-life (t1/2) of Plasminogen Activity After First Dose and at Week 12Mean (SD) t1/2 of plasminogen at week 1239.2 HoursStandard Deviation 6.22
Secondary

MRTlast for Plasminogen Activity After First Dose and at Week 12

MRTLast is the mean residence time of Plasminogen from time 0 to the last measured concentration

Time frame: First dose and 12 weeks

Population: Pharmacokinetic Population included any participant who had completed Segment 2 dosing and had provided at least 3 blood samples to measure plasminogen activity trough levels.

ArmMeasureGroupValue (MEAN)Dispersion
Plasminogen (Human) IntravenousMRTlast for Plasminogen Activity After First Dose and at Week 12Mean (SD) MRTlast of plasminogen after first dose30.6 hoursStandard Deviation 3.22
Plasminogen (Human) IntravenousMRTlast for Plasminogen Activity After First Dose and at Week 12Mean (SD) MRTlast of plasminogen at Week 1233.5 hoursStandard Deviation 1.6
Secondary

Number of Participants With Improved Quality of Life (QOL) Score After 12 Weeks of Study Treatment

Quality of life score (QOL) was measured at baseline and at 12 and 48 weeks after study drug treatment. For the QOL assessment, participants were asked to rate their overall QOL using an 11-point scale (0 = non-functioning, 10 = normal; The QOL scale was adapted from a scale developed by the American Chronic Pain Association.

Time frame: 12 weeks

Population: Efficacy Population Week 48-Segment 3 included all 15 enrolled participants who completed the Week 48 visit at the time of the data cut-off date of 14Dec2017

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 12 Weeks of Study TreatmentQOL score = 3 : Week 120 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 12 Weeks of Study TreatmentQOL score 0 : Week 120 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 12 Weeks of Study TreatmentQOL score = 1 : Week 120 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 12 Weeks of Study TreatmentQOL score = 2 : Week 120 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 12 Weeks of Study TreatmentQOL score = 4 : Week 120 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 12 Weeks of Study TreatmentQOL score = 5 : Week 121 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 12 Weeks of Study TreatmentQOL score = 6 : Week 120 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 12 Weeks of Study TreatmentQOL score = 7 : Week 120 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 12 Weeks of Study TreatmentQOL score = 8 : Week 120 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 12 Weeks of Study TreatmentQOL score = 9 : Week 121 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 12 Weeks of Study TreatmentQOL score = 10 : Week 1213 Participants
Secondary

Number of Participants With Improved Quality of Life (QOL) Score After 48 Weeks of Study Treatment

Quality of life score (QOL) was measured at baseline and at 12 and 48 weeks after study drug treatment. For the QOL assessment, participants were asked to rate their overall QOL using an 11-point scale (0 = non-functioning, 10 = normal; The QOL scale was adapted from a scale developed by the American Chronic Pain Association.

Time frame: 48 weeks

Population: Efficacy Population Week 48-Segment 3 included all 15 enrolled participants who completed the Week 48 visit at the time of the data cut-off date of 14Dec2017

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 48 Weeks of Study TreatmentQOL Score 0: Week 480 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 48 Weeks of Study TreatmentQOL Score 1: Week 480 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 48 Weeks of Study TreatmentQOL Score 2: Week 480 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 48 Weeks of Study TreatmentQOL Score 3: Week 480 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 48 Weeks of Study TreatmentQOL Score 4: Week 480 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 48 Weeks of Study TreatmentQOL Score 5: Week 481 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 48 Weeks of Study TreatmentQOL Score 6: Week 480 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 48 Weeks of Study TreatmentQOL Score 7: Week 480 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 48 Weeks of Study TreatmentQOL Score 8: Week 480 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 48 Weeks of Study TreatmentQOL Score 9: Week 481 Participants
Plasminogen (Human) IntravenousNumber of Participants With Improved Quality of Life (QOL) Score After 48 Weeks of Study TreatmentQOL Score 10: Week 4813 Participants
Secondary

Overall Clinical Success in Number and Size of Lesions as Measured by Photographic or Other Imaging Modality Depending on the Organ System Affected or Change in Affected Organ Functionality at 12 Weeks

Overall clinical success was defined as 50% of participants with visible or other measurable lesions achieving at least a 50% improvement in lesion number/size or functionality impact from baseline. Visible lesions were defined as lesions that could be imaged and analyzed with digital photography. Non-visible lesions were defined as lesions whose dimensions could have been assessed by medical imaging studies (eg, computed tomography, magnetic resonance imaging, ultrasound, etc) or functional assessments (eg, spirometry, audiogram, oximetry, etc).Visible lesions that had both a length and width as measured by the 1mm scale, were referred to as measurable lesions, and visible lesions that were too small to measure by the 1mm scale (length and/or width could not have been measured) were referred to as non-measurable lesions.

Time frame: 12 Weeks

Population: Efficacy population week 12 included all 15 enrolled participants who completed the week 12 visit. All 15 participants were assessed, however only 11 participants had visible and/or non-visible lesions at baseline.

ArmMeasureGroupValue (COUNT_OF_UNITS)
Plasminogen (Human) IntravenousOverall Clinical Success in Number and Size of Lesions as Measured by Photographic or Other Imaging Modality Depending on the Organ System Affected or Change in Affected Organ Functionality at 12 WeeksTotal Visible/Non-Visible lesions resolved26 Number of Lesions
Plasminogen (Human) IntravenousOverall Clinical Success in Number and Size of Lesions as Measured by Photographic or Other Imaging Modality Depending on the Organ System Affected or Change in Affected Organ Functionality at 12 WeeksTotal Visible/Non-Visible lesions improved14 Number of Lesions
Plasminogen (Human) IntravenousOverall Clinical Success in Number and Size of Lesions as Measured by Photographic or Other Imaging Modality Depending on the Organ System Affected or Change in Affected Organ Functionality at 12 WeeksTotal Visible/Non-visible unchanged2 Number of Lesions
Plasminogen (Human) IntravenousOverall Clinical Success in Number and Size of Lesions as Measured by Photographic or Other Imaging Modality Depending on the Organ System Affected or Change in Affected Organ Functionality at 12 WeeksNot applicable/Not assessed5 Number of Lesions
Secondary

Plasminogen Activity Trough Levels Between Week 2 and Week 120

Plasminogen activity trough levels were measured at Weeks 2, 4, 6, 8, 10, 12, 24, 36, 48, 60, 72, 84, 96, 108, and 120.

Time frame: Week 2 to Week 120

Population: Pharmacokinetic Population included any participant who had completed Segment 2, 3 and post week 48 dosing and had provided at least 3 blood samples to measure plasminogen activity trough levels.

ArmMeasureGroupValue (MEAN)Dispersion
Plasminogen (Human) IntravenousPlasminogen Activity Trough Levels Between Week 2 and Week 120Week 245.1 percentage of activityStandard Deviation 15.05
Plasminogen (Human) IntravenousPlasminogen Activity Trough Levels Between Week 2 and Week 120Week 448.9 percentage of activityStandard Deviation 14.56
Plasminogen (Human) IntravenousPlasminogen Activity Trough Levels Between Week 2 and Week 120Week 652.4 percentage of activityStandard Deviation 11.45
Plasminogen (Human) IntravenousPlasminogen Activity Trough Levels Between Week 2 and Week 120Week 848.3 percentage of activityStandard Deviation 17.43
Plasminogen (Human) IntravenousPlasminogen Activity Trough Levels Between Week 2 and Week 120Week 1050.2 percentage of activityStandard Deviation 12.39
Plasminogen (Human) IntravenousPlasminogen Activity Trough Levels Between Week 2 and Week 120Week 1251.0 percentage of activityStandard Deviation 12.01
Plasminogen (Human) IntravenousPlasminogen Activity Trough Levels Between Week 2 and Week 120Week 2445.0 percentage of activityStandard Deviation 12.88
Plasminogen (Human) IntravenousPlasminogen Activity Trough Levels Between Week 2 and Week 120Week 3645.5 percentage of activityStandard Deviation 13.18
Plasminogen (Human) IntravenousPlasminogen Activity Trough Levels Between Week 2 and Week 120Week 4841.7 percentage of activityStandard Deviation 16.99
Plasminogen (Human) IntravenousPlasminogen Activity Trough Levels Between Week 2 and Week 120Week 6049.0 percentage of activityStandard Deviation 8.88
Plasminogen (Human) IntravenousPlasminogen Activity Trough Levels Between Week 2 and Week 120Week 7246.7 percentage of activityStandard Deviation 10.97
Plasminogen (Human) IntravenousPlasminogen Activity Trough Levels Between Week 2 and Week 120Week 8451.7 percentage of activityStandard Deviation 20.76
Plasminogen (Human) IntravenousPlasminogen Activity Trough Levels Between Week 2 and Week 120Week 9650.1 percentage of activityStandard Deviation 20.08
Plasminogen (Human) IntravenousPlasminogen Activity Trough Levels Between Week 2 and Week 120Week 10845.0 percentage of activityStandard Deviation 25.19
Plasminogen (Human) IntravenousPlasminogen Activity Trough Levels Between Week 2 and Week 120Week 12036.5 percentage of activityStandard Deviation 12.02
Secondary

Plasminogen Antigen Trough Levels Between Week 2 and Week 120

Plasminogen antigen trough levels were measured at Weeks 2, 4, 6, 8, 10, 12, 24, 36, 48, 60, 72, 84, 96, 108, and 120.

Time frame: Week 2 to Week 120

Population: Pharmacokinetic Population included any participant who had completed Segment 2, 3 and post week 48 dosing and had provided at least 3 blood samples to measure plasminogen antigen trough levels.

ArmMeasureGroupValue (MEAN)Dispersion
Plasminogen (Human) IntravenousPlasminogen Antigen Trough Levels Between Week 2 and Week 120Week 26.550 mg/dLStandard Deviation 3.0457
Plasminogen (Human) IntravenousPlasminogen Antigen Trough Levels Between Week 2 and Week 120Week 47.800 mg/dLStandard Deviation 3.8813
Plasminogen (Human) IntravenousPlasminogen Antigen Trough Levels Between Week 2 and Week 120Week 67.268 mg/dLStandard Deviation 3.3155
Plasminogen (Human) IntravenousPlasminogen Antigen Trough Levels Between Week 2 and Week 120Week 86.607 mg/dLStandard Deviation 3.0046
Plasminogen (Human) IntravenousPlasminogen Antigen Trough Levels Between Week 2 and Week 120Week 109.460 mg/dLStandard Deviation 7.1543
Plasminogen (Human) IntravenousPlasminogen Antigen Trough Levels Between Week 2 and Week 120Week 127.340 mg/dLStandard Deviation 2.9342
Plasminogen (Human) IntravenousPlasminogen Antigen Trough Levels Between Week 2 and Week 120Week 245.913 mg/dLStandard Deviation 2.2181
Plasminogen (Human) IntravenousPlasminogen Antigen Trough Levels Between Week 2 and Week 120Week 366.667 mg/dLStandard Deviation 2.7336
Plasminogen (Human) IntravenousPlasminogen Antigen Trough Levels Between Week 2 and Week 120Week 486.973 mg/dLStandard Deviation 3.1299
Plasminogen (Human) IntravenousPlasminogen Antigen Trough Levels Between Week 2 and Week 120Week 606.415 mg/dLStandard Deviation 1.7578
Plasminogen (Human) IntravenousPlasminogen Antigen Trough Levels Between Week 2 and Week 120Week 726.083 mg/dLStandard Deviation 2.2851
Plasminogen (Human) IntravenousPlasminogen Antigen Trough Levels Between Week 2 and Week 120Week 847.183 mg/dLStandard Deviation 3.8129
Plasminogen (Human) IntravenousPlasminogen Antigen Trough Levels Between Week 2 and Week 120Week 967.656 mg/dLStandard Deviation 4.203
Plasminogen (Human) IntravenousPlasminogen Antigen Trough Levels Between Week 2 and Week 120Week 1086.529 mg/dLStandard Deviation 4.0852
Plasminogen (Human) IntravenousPlasminogen Antigen Trough Levels Between Week 2 and Week 120Week 1206.550 mg/dLStandard Deviation 6.2933
Secondary

Vss for Plasminogen Activity After First Dose and at Week 12

Vss is the apparent volume of distribution at steady state of Plasminogen

Time frame: First dose and 12 weeks

Population: Pharmacokinetic Population included any participant who had completed Segment 2 dosing and had provided at least 3 blood samples to measure plasminogen activity trough levels.

ArmMeasureGroupValue (MEAN)Dispersion
Plasminogen (Human) IntravenousVss for Plasminogen Activity After First Dose and at Week 12Mean (SD) Vss of plasminogen after first dose63.3 mL/kgStandard Deviation 11.44
Plasminogen (Human) IntravenousVss for Plasminogen Activity After First Dose and at Week 12Mean (SD) Vss of plasminogen at Week 1249.3 mL/kgStandard Deviation 10.36

Source: ClinicalTrials.gov · Data processed: Jul 31, 2026