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Not yet recruitingNCT06096415Updated Oct 23, 2023

Safety and Efficacy of ABX-101 in Participants Aged 18 to 50 Years of Age With Moderate to Severe Traumatic Brain Injury

A Phase 2 interventional study of ABX-101 1mg and ABX-101 2mg in Traumatic Brain Injury and Cerebral Edema, sponsored by Abalonex, LLC. Not yet recruiting. Open to participants aged 18 Years to 50 Years. Per ClinicalTrials.gov, last updated 2023-10-23.

Sponsored by Abalonex, LLC · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Apr 2024, 2 years 7 months ago, but the record still lists the study as not yet recruiting.
Phase
Phase 2
Study type
Interventional
Enrollment
45
Allocation
Randomized
Ages
18 Years to 50 Years
Sex
All
01

Study summary

The purpose of this study is to investigate the clinical improvement measured by the Glasgow Outcome Scale Extended (GOS-E) with ABX-101 compared with Placebo intramuscular injection in participants with moderate to severe TBI.

Read the detailed description

Study details include:

  • The study duration will be up to 180 days per participant.
  • The treatment duration will be up to 7 days.
  • The visits post-treatment will be on day 30 and day 180 of the study.

Number of Participants:

A maximum of 45 participants will be enrolled into the study and randomized to each treatment arm in a ratio of 1:1:1. i.e., fifteen participants per arm.

Study Arms and Duration:

Participants will be screened, enrolled and receive the assigned treatment within 12 hours of the primary TBI insult. Enrolled participants will be stratified 1:1 (in each arm) by GCS score (GCS 4-8 in one group and GCS 9 - 12 in the other). The treatment period, which involves 6 hourly, i.e., quarter in die (QID), ABX-101 (1 mg OR 2 mg) intramuscular injections, is seven days. Enrolled participant will continue with the in-hospital standard of care, as decided by the external treating physician, and will be followed up by the study team on days 30 and days 180. The ABX-101 1 mg and 2 mg arm will be enrolled simultaneously.

02

Conditions studied

  • Traumatic Brain Injury
  • Cerebral Edema

Keywords

  • Traumatic brain injury
03

In context

Brain Injuries, Traumatic

1,721 studies on the registry are indexed under Brain Injuries, Traumatic; 447 are open to participants now.

This study's planned enrollment of 45 is below the median of 52 across 1,088 interventional studies indexed under Brain Injuries, Traumatic.

Browse Brain Injuries, Traumatic studies →

Lead sponsor

This is the only study on the registry with Abalonex, LLC as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 50 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Written from patient, patient's legal guardian or legal representative, or deferred consent procedure, according to local requirements
  • 18 - 50 years of age, inclusive
  • Expected to survive more than 24 hours after admission
  • Clearly defined time of injury no more than 12 hours before administration of study drug/placebo

    o Subjects stratified 1:1 (in each arm) by treatment administered 0-12 hrs

  • TBI with Glasgow Coma Score (GCS) 4-12 requiring intracranial pressure (ICP) monitoring according to the assessment of the treating physician

    o Subjects stratified 1:1 (in each arm) by GCS 4-8 and GCS 9-12

  • Catheter placement (intraventricular or intraparenchymal, only) for monitoring and management of increased ICP
  • [Brain computed tomography (CT) showing intracranial parenchymal abnormality and hemodynamically stable]

Exclusion criteria

Exclusion Criteria:

  • Penetrating head injury (e.g. missile, stab wound)
  • Concurrent, but not pre-existing, spinal cord injury
  • Not expected to survive more than 24 hours after admission
  • Pregnant, or a positive pregnancy test
  • Coma due to an exclusive epidural hematoma (lucid interval and absence of structural brain damage on CT scan)
  • Patient pupils are unresponsive (dilation) in both eyes
  • The subject has a neurodegenerative disease or other neurological disorder including dementia, Parkinson's disease, multiple sclerosis, seizure disorder, or brain tumors.
  • Coma suspected to be primarily due to other causes than head injury (e.g. drug overdose intoxication, drowning/near drowning
  • Known or CT scan evidence of pre-existing major cerebral damage
  • Any severe concomitant condition (cancer; hematologic, renal, hepatic, coronary disease; major psychiatric disorder; alcohol or drug abuse), that can be ascertained at admission
  • Known to have received an experimental drug within 4 weeks prior to current injury
  • Patients who cannot be monitored with regard to their recovery (GOS-E and QOLIBRI)
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
45 participants (estimated)

Study arms

  • Experimental
    Experimental: ABX-101 1mg

    Participants will be screened, enrolled and receive the assigned treatment within 12 hours of the primary TBI insult (or estimated less than 12 hours if the exact time is unknown). Enrolled participants will be stratified 1:1 (in each arm) by GCS score (GCS 4-8 in one group and GCS 9 - 12 in the other). The treatment period, which involves 6 hourly, i.e., quarter in die (QID), ABX 101 (1 mg OR 2 mg) intramuscular injections, is seven days.

    Drug: ABX-101 1mg · Drug: ABX-101 2mg

  • Experimental
    Experimental: ABX-101 2mg

    Participants will be screened, enrolled and receive the assigned treatment within 12 hours of the primary TBI insult (or estimated less than 12 hours if the exact time is unknown). Enrolled participants will be stratified 1:1 (in each arm) by GCS score (GCS 4-8 in one group and GCS 9 - 12 in the other). The treatment period, which involves 6 hourly, i.e., quarter in die (QID), ABX 101 (1 mg OR 2 mg) intramuscular injections, is seven days.

    Drug: ABX-101 1mg · Drug: ABX-101 2mg

  • Placebo comparator
    Placebo Comparator: Saline

    Placebo to the ABX-101 will be administered to patients.

    Drug: ABX-101 1mg · Drug: ABX-101 2mg

Interventions

  • DrugABX-101 1mg

    ABX-101 1mg will be provided to patients stratified 1:1 by GCS scoring (GCS 4-8; GCS 9-12)

  • DrugABX-101 2mg

    ABX-101 2mg will be provided to patients stratified 1:1 by GCS scoring (GCS 4-8; GCS 9-12)

06

What researchers measure

Primary outcomes

  1. Glasgow Outcome Scale-Extended (GOS-E)

    To demonstrate superiority of ABX-101 vs placebo on the Glasgow Outcome Scale-Extended (GOS-E) at 90-days in participants with TBI

    Time frame: 180 days

Secondary outcomes

  1. Glasgow Outcome Scale-Extended (GOS-E)

    To demonstrate superiority of ABX-101 vs placebo on the GOS-E at 30 days in participants with TBI

    Time frame: 30 days

  2. Glasgow Coma Score (GSC) improvement

    To demonstrate superiority of ABX-101 vs placebo on the GCS improvement (vs. baseline) at days 3 and 7 in participants with TBI

    Time frame: 7 days

  3. ICP Maintenance

    To demonstrate superiority of ABX-101 vs placebo on the ICP maintenance at 3 days and 7 days in participants with TBI

    Time frame: 7 days

  4. Midline Shift

    To demonstrate superiority of ABX-101 vs placebo on the degree of midline shift as assessed by CT scan at 1 day and 3 days in participants with TBI

    Time frame: 3 days

  5. Therapeutic Intensity Level

    To demonstrate superiority of ABX-101 vs placebo on the Therapeutic Intensity Level over 3 days and over 7 days in participants with TBI

    Time frame: 7 days

  6. Neuroworsening

    To demonstrate superiority of ABX-101 vs placebo on the Neuroworsening at 3 days and 7 days in participants with TBI

    Time frame: 7 days

  7. Mortality

    To demonstrate superiority of ABX-101 vs placebo on the mortality at 3 days, 7 days, 28 days, and 90 days in participants with TBI

    Time frame: 180 days

  8. Quality of life- (QOLIBRI)

    To demonstrate superiority of ABX-101 vs placebo on the Quality of Life after Brain Injury at 90 days in participants with TBI

    Time frame: 180 days

  9. GFAP Inflammatory Biomarker Analysis

    To compare ABX-101 vs placebo on Glial fibrillary acidic protein (GFAP) levels at 1 day, 3 days, and 7 days in participants with TBI. The detection range for GFAP biomarker is 0.31 - 20 ng/ml using ELAB Science GFAP Kit.

    Time frame: 7 days

  10. Adverse Events

    To compare ABX-101 vs placebo in terms of AEs assessed over 7 days of treatment and through the duration of follow-up in participants with TBI

    Time frame: 7 days

07

Study locations

No study locations are listed for this record.

08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 23, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06096415
Lead sponsor
Abalonex, LLC
Responsible party
Sponsor
First posted
Oct 23, 2023
Start date
Dec 2023 (estimated)
Primary completion
Apr 2024 (estimated)
Completion
May 2024 (estimated)
Last update
Oct 23, 2023

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Oct 2023. You cannot join it, but the record below documents what was studied.

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