Study of BB-025, Alone and After BB-031, in Healthy Volunteers
A Single Center, Two-part, Double-blind, Randomized, Placebo-controlled, Dose-escalation, Phase 1 Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of BB-025 or Placebo, Alone and Following a Single Dose of BB-031, in Healthy Volunteers
1 other identifier
interventional
72
1 country
1
Brief Summary
The goal of this 2-part clinical trial is to learn about the safety and pharmacokinetics (PK) of a single dose of BB-025 when given on its own and after being given BB-031. Researchers will compare BB-025 to placebo (a look-alike substance that contains no drug) both on its own and after being given a single dose of BB-031 to assess the use of BB-025 as a reversal agent. In the first part of the study, participants will receive a single dose of BB-025 or placebo. They will be followed for 28 days to check if they have any symptoms. In the second part of the study, participants will receive a single dose of BB-031 and then be given either BB-025 or placebo. These participants will also be followed for 28 days to check if they have any symptoms.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Nov 2025
Shorter than P25 for phase_1
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 24, 2025
CompletedFirst Posted
Study publicly available on registry
October 2, 2025
CompletedStudy Start
First participant enrolled
November 5, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2026
CompletedNovember 25, 2025
November 1, 2025
7 months
September 24, 2025
November 20, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Safety as assessed by adverse events (AEs)
Incidence of treatment-emergent AEs
From dosing of study drug to final visit (Day 28)
Secondary Outcomes (5)
Pharmacokinetics as measured by BB-025 plasma levels
From dosing to 24 hours after dosing
Pharmacokinetics as measured by BB-031 plasma levels
From dosing to 24 hours after dosing
Pharmacokinetics as measured by BB-025/BB-031 Complex plasma levels
From dosing of BB-031 through 24 hours after dosing of BB-025
Plasma von Willebrand Factor (vWF) Levels
From dosing of BB-031 or BB-025 to 24 hours after dosing of BB-025
Platelet Function
From dosing of BB-031 or BB-025 to 24 hours after BB-025 dosing
Study Arms (3)
Single Ascending Dose BB-025
EXPERIMENTALDrug: BB-025, Investigational Drug
Single Dose Placebo
PLACEBO COMPARATORDrug: Matched placebo to BB-025 cohorts
Single Dose BB-031
EXPERIMENTALDrug: BB-031, Investigational Drug
Interventions
Eligibility Criteria
You may qualify if:
- years of age
- Ability to provide written consent
- Weight 50-100 kg with BMI 18-32 kg/m2
- Willingness to use contraceptives
- Negative results for alcohol and drugs of abuse
You may not qualify if:
- Pregnant or lactating females
- Familial bleeding disorder or individual or family history of bleeding diathesis or coagulopathy
- Females with active menstruation on day of dosing
- Use of prescription medications known to affect platelet function
- Use of NSAIDs, aspirin, anti-platelet or anti-coagulation therapy within 10 days of dosing
- Contraindication to anticoagulation or increased bleeding risks
- History of thrombocytosis, high platelet count, intracranial bleeding, aneurysm, stroke, vascular disease
- History of peptic ulcer disease, gastrointestinal or genitourinary bleed, severe trauma, fracture, major surgery of biopsy of parenchymal organ within past 3 months
- Planned surgery during the study
- Any clinically significant abnormality at screening
- Use of investigational drug in past 30 days or 5 half lives
- Concurrent enrollment in another clinical study or more than 4 clinical studies in past 12 months
- Any prior history of substance abuse or treatment or positive urine screen for drugs of abuse or positive breathalyzer test
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Scintia Clinical Research Ltd
Randwick, New South Wales, Australia
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Chris Argent, MD
Scientia Clinical Research Limited
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 24, 2025
First Posted
October 2, 2025
Study Start
November 5, 2025
Primary Completion
June 1, 2026
Study Completion
June 1, 2026
Last Updated
November 25, 2025
Record last verified: 2025-11
Data Sharing
- IPD Sharing
- Will not share
Publication from this study not anticipated to need IPD data to be shared