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A Study to Evaluate Plasma Gelsolin in Healthy Volunteers

Single-center, Randomized, Double-blind, Placebo-controlled, Ascending-Dose Study to Evaluate the Safety and Pharmacokinetics of Recombinant Human Plasma Gelsolin (Rhu-pGSN) After Intravenous Administration to Healthy Volunteers

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05789745
Enrollment
32
Registered
2023-03-29
Start date
2023-03-14
Completion date
2023-05-24
Last updated
2024-09-19

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

Conditions

Volunteers, Healthy

Keywords

safety, pharmacokinetics

Brief summary

Study BTI-101 is a Phase 1, randomized, double-blind, placebo-controlled, dose escalation, parallel design study to evaluate the safety, tolerability, and pharmacokinetics of IV rhu-pGSN or saline placebo administered as 5 doses each of 6, 12, 18, or 24 mg/kg of body weight. Each of 4 dosing cohorts will include 8 subjects randomized 3:1 rhu-pGSN:placebo (6 rhu-pGSN subjects:2 placebo subjects). Subjects will be healthy adult volunteers 18-55 years of age.

Detailed description

Doses will be administered at 0 hours (Day 1), 12 hours (Day 1), 36 hours (Day 2), 60 hours (Day 3), and 84 hours (Day 4). Subjects will be kept in-house until after the last blood sample is taken on Day 5. Subjects will return for follow-up 7 days after the initiation of therapy (Day 8) and on Day 28 for the End-of-Study (EOS) Visit. After each cohort has completed the Day 8 visit, review of the safety results (including labs) will be conducted (and unblinded where appropriate) before the initiation of the next higher dose cohort. To assess safety and tolerability, subjects will undergo physical examinations (including vital sign measurements), adverse event (AE) assessments, concomitant medication assessments, and safety laboratory testing. Blood samples will be collected for analysis of pGSN levels and antibodies against pGSN.

Interventions

intravenous administration of either 6, 12, 18, or 24 mg/kg at time 0, 12, 36, 60 and 84 hours

OTHERplacebo

intravenous administration of saline control at time 0, 12, 36, 60 and 84 hours

Sponsors

BioAegis Therapeutics Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

Doses prepared by unblinded pharmacist. Placebo and Drug are undistinguishable in syringe for administration.

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

1. Healthy male or female adults 18 to 55 years of age without chronic or active acute medical conditions 2. Informed consent obtained from subject 3. Weight ≤100 kg and body mass index (BMI) \<30 kg/m2 4. Willingness to use contraception during the course of the study, starting at screening and for at least 3 months after their final study treatment

Exclusion criteria

1. Pregnant or lactating women 2. Acute illness during the month prior to screening 3. Circumstances that may require any medications (including prescription medication, over-the-counter medication, vitamins, or supplements) during the during the inpatient days of the study other than acetaminophen 4. Hospitalization during the year prior to screening 5. History of cancer or treatment with systemic chemotherapy or radiation therapy at any time 6. Transplantation of hematopoietic or solid organs 7. History of diabetes mellitus; myocardial infarction, angina, or other cardiovascular disease; stroke or cerebrovascular disease; chronic obstructive pulmonary disease (COPD) or asthma; deep vein thrombosis (DVT)/pulmonary embolism (PE); liver or kidney disease; clinically significant psychiatric condition; or active or chronic infection 8. Receipt of blood products during the year prior to screening 9. Chronic mechanical ventilation or dialysis 10. Any clinically significant abnormalities in clinical chemistry, hematology, or urinalysis results as judged by the Investigator 11. Any clinically significant abnormalities of vital signs, EKG or physical examination findings as judged by the Investigator 12. Positive results for recreational drugs during screening 13. Any other condition deemed by the Investigator as possibly interfering with the conduct of the study

Design outcomes

Primary

MeasureTime frameDescription
Adverse Events28 daysNumber of subjects who had an Adverse Event
Serious Adverse Events28 daysNumber of subjects who had a Serious Adverse Event

Secondary

MeasureTime frameDescription
Pharmacokinetics: pGSN Concentration108 hoursConcentration of pGSN at baseline, 12 hours after dose 1, and 24 hours after doses 2 and 5
Pharmacokinetics: pGSN Area Under the Curve (AUC)108 hoursArea Under the Curve (AUC) of pGSN concentration at 12 hours after dose 1, and 24 hours after doses 2 and 5
Pharmacokinetics: pGSN Half-life108 hoursHalf-life of pGSN concentration 12 hours after dose 1, and 24 hours after doses 2 and 5
Presence of Anti-drug Antibodies28 daysNumber of participants who tested positive for anti-pGSN antibodies at baseline, and on day 28

Countries

United States

Participant flow

Participants by arm

ArmCount
Cohort 1 (6 mg/kg)
IV rhu-pGSN administered at 0 hours (Day 1), 12 hours (Day 1), 36 hours (Day 2), 60 hours (Day 3), and 84 hours (Day 4)
6
Cohort 2 (12 mg/kg)
IV rhu-pGSN administered at 0 hours (Day 1), 12 hours (Day 1), 36 hours (Day 2), 60 hours (Day 3), and 84 hours (Day 4)
6
Cohort 3 (18 mg/kg)
IV rhu-pGSN administered at 0 hours (Day 1), 12 hours (Day 1), 36 hours (Day 2), 60 hours (Day 3), and 84 hours (Day 4)
6
Cohort 4 (24 mg/kg)
IV rhu-pGSN administered at 0 hours (Day 1), 12 hours (Day 1), 36 hours (Day 2), 60 hours (Day 3), and 84 hours (Day 4)
6
Placebo Cohorts 1-4
Dosed at a weight-based volume of 0.025 mL/mg × dose in mg/kg × weight in kg of 0.9% saline solution via IV push (matching the volume of rhu-pGSN for a subject of that size) injected at ≤20 mL/minute though a standard 0.2 μ filter. Placebo was administered on the same schedule as the active drug.
8
Total32

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004
Overall StudyWithdrawal by Subject00001

Baseline characteristics

CharacteristicCohort 1 (6 mg/kg)Cohort 2 (12 mg/kg)Cohort 3 (18 mg/kg)Cohort 4 (24 mg/kg)Placebo Cohorts 1-4Total
Age, Continuous34.0 years41.5 years36.0 years37.5 years28.5 years36.5 years
BMI24.55 kg/m^2
STANDARD_DEVIATION 2.899
24.77 kg/m^2
STANDARD_DEVIATION 3.506
25.28 kg/m^2
STANDARD_DEVIATION 3.722
25.43 kg/m^2
STANDARD_DEVIATION 2.876
23.85 kg/m^2
STANDARD_DEVIATION 2.021
24.72 kg/m^2
STANDARD_DEVIATION 2.862
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants1 Participants0 Participants1 Participants1 Participants5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants5 Participants6 Participants5 Participants7 Participants27 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants1 Participants3 Participants0 Participants4 Participants
Race (NIH/OMB)
Black or African American
1 Participants1 Participants0 Participants0 Participants2 Participants4 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
5 Participants5 Participants5 Participants3 Participants6 Participants24 Participants
Sex: Female, Male
Female
2 Participants3 Participants3 Participants3 Participants1 Participants12 Participants
Sex: Female, Male
Male
4 Participants3 Participants3 Participants3 Participants7 Participants20 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
0 / 60 / 60 / 60 / 60 / 8
other
Total, other adverse events
1 / 62 / 63 / 62 / 61 / 8
serious
Total, serious adverse events
0 / 60 / 60 / 60 / 60 / 8

Outcome results

Primary

Adverse Events

Number of subjects who had an Adverse Event

Time frame: 28 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1 (6 mg/kg)Adverse Events1 Participants
Cohort 2 (12 mg/kg)Adverse Events2 Participants
Cohort 3 (18 mg/kg)Adverse Events3 Participants
Cohort 4 (24 mg/kg)Adverse Events2 Participants
Placebo Cohorts 1-4Adverse Events1 Participants
Primary

Serious Adverse Events

Number of subjects who had a Serious Adverse Event

Time frame: 28 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1 (6 mg/kg)Serious Adverse Events0 Participants
Cohort 2 (12 mg/kg)Serious Adverse Events0 Participants
Cohort 3 (18 mg/kg)Serious Adverse Events0 Participants
Cohort 4 (24 mg/kg)Serious Adverse Events0 Participants
Placebo Cohorts 1-4Serious Adverse Events0 Participants
Secondary

Pharmacokinetics: pGSN Area Under the Curve (AUC)

Area Under the Curve (AUC) of pGSN concentration at 12 hours after dose 1, and 24 hours after doses 2 and 5

Time frame: 108 hours

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Cohort 1 (6 mg/kg)Pharmacokinetics: pGSN Area Under the Curve (AUC)AUC0-12 (dose 1)1245.5 hours*(micrograms/mL)Standard Deviation 257.9
Cohort 1 (6 mg/kg)Pharmacokinetics: pGSN Area Under the Curve (AUC)AUC0-24 (dose 5)3486.5 hours*(micrograms/mL)Standard Deviation 1035.2
Cohort 1 (6 mg/kg)Pharmacokinetics: pGSN Area Under the Curve (AUC)AUC0-24 (dose 2)3066.2 hours*(micrograms/mL)Standard Deviation 256.8
Cohort 2 (12 mg/kg)Pharmacokinetics: pGSN Area Under the Curve (AUC)AUC0-12 (dose 1)2737.5 hours*(micrograms/mL)Standard Deviation 379.1
Cohort 2 (12 mg/kg)Pharmacokinetics: pGSN Area Under the Curve (AUC)AUC0-24 (dose 5)6599.1 hours*(micrograms/mL)Standard Deviation 1334.2
Cohort 2 (12 mg/kg)Pharmacokinetics: pGSN Area Under the Curve (AUC)AUC0-24 (dose 2)6448.5 hours*(micrograms/mL)Standard Deviation 599.5
Cohort 3 (18 mg/kg)Pharmacokinetics: pGSN Area Under the Curve (AUC)AUC0-24 (dose 2)9374.2 hours*(micrograms/mL)Standard Deviation 2456
Cohort 3 (18 mg/kg)Pharmacokinetics: pGSN Area Under the Curve (AUC)AUC0-12 (dose 1)3547.0 hours*(micrograms/mL)Standard Deviation 657.3
Cohort 3 (18 mg/kg)Pharmacokinetics: pGSN Area Under the Curve (AUC)AUC0-24 (dose 5)9139.1 hours*(micrograms/mL)Standard Deviation 793.1
Cohort 4 (24 mg/kg)Pharmacokinetics: pGSN Area Under the Curve (AUC)AUC0-12 (dose 1)4832.3 hours*(micrograms/mL)Standard Deviation 646.6
Cohort 4 (24 mg/kg)Pharmacokinetics: pGSN Area Under the Curve (AUC)AUC0-24 (dose 5)12135.3 hours*(micrograms/mL)Standard Deviation 1172.4
Cohort 4 (24 mg/kg)Pharmacokinetics: pGSN Area Under the Curve (AUC)AUC0-24 (dose 2)10258.2 hours*(micrograms/mL)Standard Deviation 2035.6
Secondary

Pharmacokinetics: pGSN Concentration

Concentration of pGSN at baseline, 12 hours after dose 1, and 24 hours after doses 2 and 5

Time frame: 108 hours

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Cohort 1 (6 mg/kg)Pharmacokinetics: pGSN ConcentrationBaseline63.6 micrograms/mLStandard Deviation 13.2
Cohort 1 (6 mg/kg)Pharmacokinetics: pGSN ConcentrationCmax (Dose 1)148.4 micrograms/mLStandard Deviation 26.8
Cohort 1 (6 mg/kg)Pharmacokinetics: pGSN ConcentrationCmax (Dose 2)225.2 micrograms/mLStandard Deviation 27
Cohort 1 (6 mg/kg)Pharmacokinetics: pGSN ConcentrationCmax (Dose 5)218.9 micrograms/mLStandard Deviation 37.7
Cohort 2 (12 mg/kg)Pharmacokinetics: pGSN ConcentrationCmax (Dose 1)347.5 micrograms/mLStandard Deviation 41.2
Cohort 2 (12 mg/kg)Pharmacokinetics: pGSN ConcentrationCmax (Dose 2)506.9 micrograms/mLStandard Deviation 78.5
Cohort 2 (12 mg/kg)Pharmacokinetics: pGSN ConcentrationCmax (Dose 5)501.6 micrograms/mLStandard Deviation 60.4
Cohort 2 (12 mg/kg)Pharmacokinetics: pGSN ConcentrationBaseline61.2 micrograms/mLStandard Deviation 19.7
Cohort 3 (18 mg/kg)Pharmacokinetics: pGSN ConcentrationCmax (Dose 2)691.5 micrograms/mLStandard Deviation 110.5
Cohort 3 (18 mg/kg)Pharmacokinetics: pGSN ConcentrationCmax (Dose 1)442.5 micrograms/mLStandard Deviation 50.2
Cohort 3 (18 mg/kg)Pharmacokinetics: pGSN ConcentrationCmax (Dose 5)703.8 micrograms/mLStandard Deviation 140.7
Cohort 3 (18 mg/kg)Pharmacokinetics: pGSN ConcentrationBaseline59.1 micrograms/mLStandard Deviation 8.8
Cohort 4 (24 mg/kg)Pharmacokinetics: pGSN ConcentrationCmax (Dose 5)970.9 micrograms/mLStandard Deviation 87.9
Cohort 4 (24 mg/kg)Pharmacokinetics: pGSN ConcentrationCmax (Dose 1)663.6 micrograms/mLStandard Deviation 110.8
Cohort 4 (24 mg/kg)Pharmacokinetics: pGSN ConcentrationBaseline71.8 micrograms/mLStandard Deviation 11.1
Cohort 4 (24 mg/kg)Pharmacokinetics: pGSN ConcentrationCmax (Dose 2)855.7 micrograms/mLStandard Deviation 200.6
Secondary

Pharmacokinetics: pGSN Half-life

Half-life of pGSN concentration 12 hours after dose 1, and 24 hours after doses 2 and 5

Time frame: 108 hours

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Cohort 1 (6 mg/kg)Pharmacokinetics: pGSN Half-lifet1/2 (dose 1)14.0 hoursStandard Deviation 5.4
Cohort 1 (6 mg/kg)Pharmacokinetics: pGSN Half-lifet1/2 (dose 5)28.4 hoursStandard Deviation 8.5
Cohort 1 (6 mg/kg)Pharmacokinetics: pGSN Half-lifet1/2 (dose 2)16.7 hoursStandard Deviation 6.1
Cohort 2 (12 mg/kg)Pharmacokinetics: pGSN Half-lifet1/2 (dose 1)13.1 hoursStandard Deviation 2.6
Cohort 2 (12 mg/kg)Pharmacokinetics: pGSN Half-lifet1/2 (dose 5)22.0 hoursStandard Deviation 11.3
Cohort 2 (12 mg/kg)Pharmacokinetics: pGSN Half-lifet1/2 (dose 2)14.5 hoursStandard Deviation 3.4
Cohort 3 (18 mg/kg)Pharmacokinetics: pGSN Half-lifet1/2 (dose 2)15.1 hoursStandard Deviation 4.5
Cohort 3 (18 mg/kg)Pharmacokinetics: pGSN Half-lifet1/2 (dose 1)9.2 hoursStandard Deviation 3
Cohort 3 (18 mg/kg)Pharmacokinetics: pGSN Half-lifet1/2 (dose 5)17.6 hoursStandard Deviation 1.9
Cohort 4 (24 mg/kg)Pharmacokinetics: pGSN Half-lifet1/2 (dose 1)10.7 hoursStandard Deviation 5.2
Cohort 4 (24 mg/kg)Pharmacokinetics: pGSN Half-lifet1/2 (dose 5)14.5 hoursStandard Deviation 2.2
Cohort 4 (24 mg/kg)Pharmacokinetics: pGSN Half-lifet1/2 (dose 2)12.0 hoursStandard Deviation 1.5
Secondary

Presence of Anti-drug Antibodies

Number of participants who tested positive for anti-pGSN antibodies at baseline, and on day 28

Time frame: 28 days

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1 (6 mg/kg)Presence of Anti-drug AntibodiesBaseline0 Participants
Cohort 1 (6 mg/kg)Presence of Anti-drug AntibodiesDay 280 Participants
Cohort 2 (12 mg/kg)Presence of Anti-drug AntibodiesBaseline0 Participants
Cohort 2 (12 mg/kg)Presence of Anti-drug AntibodiesDay 280 Participants
Cohort 3 (18 mg/kg)Presence of Anti-drug AntibodiesBaseline0 Participants
Cohort 3 (18 mg/kg)Presence of Anti-drug AntibodiesDay 280 Participants
Cohort 4 (24 mg/kg)Presence of Anti-drug AntibodiesDay 281 Participants
Cohort 4 (24 mg/kg)Presence of Anti-drug AntibodiesBaseline0 Participants
Placebo Cohorts 1-4Presence of Anti-drug AntibodiesBaseline0 Participants
Placebo Cohorts 1-4Presence of Anti-drug AntibodiesDay 281 Participants

Source: ClinicalTrials.gov · Data processed: Apr 1, 2026