NCT05953623

Brief Summary

The purpose of this study is to investigate the safety and feasibility of intra-arterial albumin infusion for patients with acute ischemic stroke after successful thrombectomy and to further explore the optimal dose of albumin through the implementation of a 3 + 3 dose-escalation design. At the maximum safe dose determined in the 3+3 dose-escalation phase, an additional 15 to 20 patients will be enrolled in the study, and comparisons were made with external patients who received endovascular treatment alone.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
57

participants targeted

Target at P50-P75 for phase_1

Timeline
Completed

Started Aug 2023

Geographic Reach
1 country

1 active site

Status
completed

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

July 12, 2023

Completed
8 days until next milestone

First Posted

Study publicly available on registry

July 20, 2023

Completed
12 days until next milestone

Study Start

First participant enrolled

August 1, 2023

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 29, 2024

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2024

Completed
Last Updated

July 22, 2025

Status Verified

July 1, 2025

Enrollment Period

11 months

First QC Date

July 12, 2023

Last Update Submit

July 16, 2025

Conditions

Keywords

Acute Ischemic StrokeAlbuminEndovascular TherapyLarge Vessel Occlusion

Outcome Measures

Primary Outcomes (1)

  • All cause of death

    all cause of death within 90 days

    90 days after initiation of infusion of albumin intra-arterially.

Secondary Outcomes (5)

  • symptomatic intracranial hemorrhage

    24 (±6) hours after initiation of infusion of albumin intra-arterially

  • rate of serious adverse events

    90 (±14) days after initiation of infusion of albumin intra-arterially

  • all intracranial hemorrhages

    24 (±6) hours after initiation of infusion of albumin intra-arterially

  • pneumonia

    24 (±6) hours after initiation of infusion of albumin intra-arterially

  • adverse events related to albumin infusion

    24 (±6) hours after initiation of infusion of albumin intra-arterially

Other Outcomes (9)

  • Imaging Biomarker

    24 (±6) hours after initiation of infusion of albumin intra-arterially

  • Imaging Biomarker

    24 (±6) hours after initiation of infusion of albumin intra-arterially

  • early neurological biomarkers

    24 (±6) hours after initiation of infusion of albumin intra-arterially;

  • +6 more other outcomes

Study Arms (1)

Intra-arterial albumin infusion

EXPERIMENTAL
Biological: Albumin

Interventions

AlbuminBIOLOGICAL

In the first phase of the study, a 3 + 3 dose-escalation study with 7 doses (0.25g/kg, 0.35g/kg, 0.40g/kg, 0.45g/kg, 0.5g/kg, 0.55g/kg, 0.60g/kg). Intra-arterial albumin infusion will be applied after successful recanalization of the culprit artery in the anterior circulation. In the second phase of the study, at the maximum safe dose determined in the first phase, an additional 15 to 20 patients will be enrolled for intra-arterial albumin infusion.

Intra-arterial albumin infusion

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18 to 80 years;
  • Patients with acute ischemic stroke caused by large vessel occlusion in the intracranial anterior circulation (internal carotid artery, middle cerebral artery M1 and M2 segments) ;
  • mTICI score ≥ 2b for the occlude vessel after mechanical thrombectomy;
  • Baseline National Institutes of Health Stroke score (NIHSS) ≥ 6;
  • Stroke onset to arterial puncture time within 24 hours.

You may not qualify if:

  • Upon admission, the patient's medical history and physical examination revealed manifestations indicative of congestive heart failure (CHF), such as jugular venous distention, the presence of a third heart sound, resting tachycardia at a rate of 100 beats per minute attributable to heart failure, hepatomegaly, and/or lower extremity edema attributable to heart failure or of unknown etiology;
  • History of acute myocardial infarction within the preceding 3 months;
  • The patient's medical history, electrocardiogram findings upon admission, or physical examination indicated the presence of second- or third-degree heart block or any arrhythmia associated with hemodynamic instability, as determined by the investigator's assessment;
  • Acute or chronic renal failure with serum creatinine levels exceeding 2.0 mg/dL;
  • Severe anemia characterized by a hematocrit below 32%;
  • Computed tomography findings upon admission indicating the presence of any form of hemorrhage;
  • Pregnancy status;
  • Previous history of allergic reactions to albumin administration;
  • Elevated blood pressure exceeding 185/110 mmHg when investigating the use of albumin administration;
  • Presence of other potentially life-threatening medical conditions;
  • Individuals with current chronic lung diseases, such as chronic obstructive pulmonary disease, bronchiectasis, or any other lung disorder that significantly impairs daily activities; 12. Individuals with known allergies to albumin.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Tianjin Huanhu Hospital

Tianjin, Tianjin Municipality, 300222, China

Location

Related Publications (2)

  • Du K, Liu S, Nguyen TN, Pan S, Baron JC, Xu Y, Abdalkader M, Luo L, Wang S, Chen J, Dou Y, Liu S, Ji X, Wei M. Intra-arterial human serum albumin therapy following mechanical thrombectomy for acute ischemic stroke: the AMASS pilot trial. J Neurointerv Surg. 2025 Sep 8:jnis-2025-023998. doi: 10.1136/jnis-2025-023998. Online ahead of print.

  • Pan S, Du K, Liu S, Wang S, Luo L, Xu Y, Cao C, Chen J, Ji X, Wei M. Albumin adjuvant therapy for acute ischemic stroke with large vessel occlusion (AMASS-LVO): rationale, design, and protocol for a phase 1, open-label, clinical trial. Front Neurol. 2024 Sep 30;15:1455388. doi: 10.3389/fneur.2024.1455388. eCollection 2024.

MeSH Terms

Conditions

Ischemic Stroke

Interventions

Albumins

Condition Hierarchy (Ancestors)

StrokeCerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

ProteinsAmino Acids, Peptides, and Proteins

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Chief physician

Study Record Dates

First Submitted

July 12, 2023

First Posted

July 20, 2023

Study Start

August 1, 2023

Primary Completion

June 29, 2024

Study Completion

October 1, 2024

Last Updated

July 22, 2025

Record last verified: 2025-07

Data Sharing

IPD Sharing
Will not share

Locations