A nationwide, multicenter clinical study

TIME-ICH

TrIal of Early Minimally Invasive Catheter Evacuation With Thrombolysis in IntraCerebral Hemorrhage

TIME-ICH is a multicenter, randomized, adaptive clinical trial evaluating the efficacy and safety of early minimally invasive catheter evacuation with thrombolysis (eMIST), in addition to best medical management, for acute spontaneous supratentorial intracerebral hemorrhage.

EXPLORE THE STUDY
TIME-ICH study logo TIME IS BRAIN
750 Planned participants, 1:1 Randomized
71 Centers across 25 provinces
≤ 8 h From onset to randomization
NCT07187687 ClinicalTrials.gov registration

RESEARCH UPDATES

PROJECT BACKGROUND

28.8% of all stroke incidence
45.6% of all stroke deaths
49.5% of total stroke disease burden

Global Burden of Disease Study 2019.

Intracerebral hemorrhage remains one of the most devastating forms of stroke. Over the past three decades, case fatality of ischemic stroke has fallen markedly, while outcomes after hemorrhagic stroke have barely improved. In China, reported incidence and mortality are among the highest worldwide, and long-term disability remains common.

Whether surgical hematoma evacuation helps—and how early it should be performed—remains unresolved. How early treatment can begin, and how minimally invasive it can remain, are still unknown. This open question is the starting point of TIME-ICH.

Landmark trials have progressively refined patient selection, surgical approach, and treatment timing in intracerebral hemorrhage. TIME-ICH extends this trajectory into the ultra-early window.

  1. 2005 STICH Defined the limits of routine early craniotomy and set the benchmark for subsequent efforts to refine patient selection, surgical approach, and timing.
  2. 2019 MISTIE III Established the multicenter safety of catheter-based evacuation with thrombolysis; greater clot reduction was associated with better outcomes, emphasizing procedural performance.
  3. 2024 ENRICH Provided randomized evidence that early minimally invasive evacuation can improve 180-day functional outcomes in selected patients, with benefit driven mainly by lobar ICH.
  4. 2024 SWITCH Extended randomized evaluation to severe deep ICH and suggested potential benefit from decompressive craniectomy, supporting further confirmatory study.
  5. 2025 TIME-ICH Extends this trajectory into the ultra-early window, testing early catheter evacuation with thrombolysis for acute supratentorial ICH.
In adults with acute spontaneous supratentorial ICH, can early catheter evacuation with urokinase, added to best medical management, improve 180-day functional outcome without compromising safety?

RESEARCH GROUP

Academic Committee

  • Prof. Tao Hong (Principal Investigator)
  • Prof. Guoguang Zhao
  • Prof. Hongqi Zhang
  • Prof. Chao You
  • Prof. Urs Fischer

Executive Committee

  • Prof. Ye Li
  • Dr. Shaohua Mo

Data and Safety Monitoring Board

  • Prof. Peter Kan
  • Prof. Lu Ma
  • Prof. Qi Li
  • Prof. Ping Zhang
  • Prof. Chengbei Hou

Imaging Adjudication Committee

  • Prof. Qi Yang
  • Prof. Chunxue Wu
  • Prof. Adam Dmytriw

Statistics and Data Management Center

  • Prof. Yangfeng Wu
  • Prof. Haibo Wang

Clinical Events Committee

  • Prof. Liqun Jiao
  • Prof. Xiaolei Chen
  • Prof. Yuxiang Gu
  • Prof. Huaizhang Shi
  • Prof. Qiang Liu

STUDY DESIGN

GENERAL INFORMATION

Study design
A prospective, multicenter, randomized, open-label, blinded-endpoint, adaptive trial.
Study period
Started October 2025;
Enrollment expected to complete September 2027;
Study completion March 2028.
Funding
Noncommunicable Chronic Diseases-National Science and Technology Major Project.

PICO FRAMEWORK

Study population icon

Population

Acute spontaneous supratentorial ICH

Adults with CT-confirmed acute spontaneous supratentorial ICH, hematoma volume ≥ 20 mL, and good pre-stroke functional status (mRS 0–1).
Early minimally invasive surgery and medical management illustration

Intervention

eMIST plus best medical management

A standardized, image-guided strategy: early minimally invasive catheter evacuation with protocol-guided urokinase thrombolysis, in addition to best medical management.
Best medical management illustration

Comparison

Best medical management

Guideline-recommended and routine medical management for acute intracerebral hemorrhage.
Clinical outcome chart illustration

Outcomes

Function, safety, and value

The primary outcome is 180-day utility-weighted mRS, supported secondary outcomes including survival, functional, imaging, safety, quality-of-life, and health-economic metrics.

STUDY PROTOCOL

eMIST Management

Imaging-based trajectory planning for catheter placement 01

Imaging and trajectory planning

Three-dimensional CT reconstruction delineates hematoma geometry to plan a catheter path that avoids critical vascular structures and eloquent brain regions.

Training demonstration of minimally invasive catheter placement 02

Minimally invasive catheter placement

A catheter placed along the hematoma long axis achieves targeted decompression via a narrow corridor, relieving mass effect while minimizing tissue injury.

Three-way valve used for protocol-guided thrombolysis 03

Protocol-guided thrombolysis

With serial CT monitoring, urokinase is instilled following a standardized protocol until target hematoma reduction is achieved, ensuring safe and timely catheter removal.

Trial Workflow

  1. 01

    Screening and randomization

    Within 8 hours of onset

    Baseline imaging, neurological assessment, laboratory evaluation, medical history, and informed consent.

  2. 02

    Treatment assigned

    Within 4 hours after randomization

    eMIST group receives catheter drainage and thrombolysis;
    Control group receives best medical management.

  3. 03

    Early clinical monitoring

    36 hours, 7 days, 14 days / discharge

    Neurological status, imaging, laboratory findings, procedural metrics, and adverse events.

  4. 04

    Long-term follow-up

    30, 90, and 180 days

    Functional outcomes, activities of daily living, quality of life, rehabilitation and safety.

COLLABORATIVE NETWORK

Map of the TIME-ICH nationwide collaborative network
71 research centers
25 provinces
LEAD CENTER Department of Neurosurgery, Xuanwu Hospital, Capital Medical University

Participating centers operate on a unified platform featuring centralized randomization, core-lab imaging adjudication, and shared data management.

Spanning 25 provinces to ensure broad population representativeness, the network serves as a nationwide collaborative platform for intracerebral hemorrhage research.