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A Trial for Minimally Invasive Neurosurgery With AI-assisted Robotic Guidance for Moderate Basal Ganglia Hemorrhage (RAINBOW-MBH)

A Multicenter, RAndomlzed, coNtrolled, umBrella Trial fOr Minimally Invasive Neurosurgery With Al-assisted Robotic Guidance for Moderate Basal Ganglia Hemorrhage (RAINBOW-MBH)

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06465719
Acronym
RAINBOW-MBH
Enrollment
330
Registered
2024-06-20
Start date
2025-09-30
Completion date
2027-12-31
Last updated
2026-01-08

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

Conditions

Basal Ganglia Hemorrhage

Brief summary

A nationwide, prospective, multicenter randomized controlled clinical trial to evaluate the therapeutic effects of the fiber tract-based artificial intelligence (AI) Robot Guiding System on the perioperative and long-term recovery of patients with moderate-volume basal ganglion hemorrhage.

Detailed description

Basal ganglion hemorrhage is one of the most common subtypes of cerebral hemorrhage, characterized by high morbidity, mortality, and disability rates. Minimally invasive surgery for cerebral hemorrhage, particularly utilizing a fiber tract-based AI Robot Guiding System, has shown potential advantages for patient prognosis. However, there is currently no standardized practice or robust evidence confirming the effectiveness and safety of this technology for small-volume basal ganglion hemorrhage. Therefore, we are conducting a nationwide, prospective, multicenter randomized controlled clinical trial to evaluate the therapeutic effects of the fiber tract-based artificial intelligence (AI) Robot Guiding System on the perioperative and long-term recovery of patients with moderate-volume basal ganglion hemorrhage.

Interventions

PROCEDUREMinimally invasive basal ganglion hematoma evacuation with Tract-based AI Robot Guiding System

Basal ganglion hemorrhage patients will be operated on hematoma puncture and aspiration with Tract-based AI Robot Guiding System

DRUGPatients will be managed with guideline-based medications

Patients will be managed with guideline-based medications without surgery

Sponsors

Huashan Hospital
CollaboratorOTHER
The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School
CollaboratorOTHER
China-Japan Friendship Hospital
CollaboratorOTHER
Second Affiliated Hospital, School of Medicine, Zhejiang University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Masking description

Patients will be randomly assigned to treatment or conservative group, so masking is only for outcome assessors

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Age ≥18 years at randomization 2. Hypertensive basal ganglia hemorrhage confirmed by CT/CTA 3. Hematoma volume 15-30 mL (excluding 30 mL) 4. Functional impairment (aphasia, hemiparesis with strength ≤3, or NIHSS ≥15) 5. CT shows stable hematoma (≥6h interval, change \<5 mL) 6. GCS ≥9 7. Surgery feasible within 72h after onset 8. Pre-ICH mRS ≤1 9. Informed consent obtained according to laws and ethics

Exclusion criteria

1. Hematoma involving the thalamus, midbrain, or other areas 2. Radiologically diagnosed cerebrovascular abnormalities, as well as ischemic infarction converting to intracerebral hemorrhage, or recent (within 1 year) recurrence of intracerebral hemorrhage 3. Signs of impending brain herniation, such as midline shift \>1 cm or changes in the ipsilateral pupil; 4. Any irreversible coagulopathy disorders or known coagulation system disease; platelet count \<100,000; INR \>1.4; use of anticoagulants within 7 days prior to this hemorrhage; 5. Pregnant or possibly pregnant 6. Patients with severe concomitant diseases that may interfere with outcome assessment 7. Poor compliance or follow-up difficulties

Design outcomes

Primary

MeasureTime frameDescription
Utility-weighted modified Rankin Scale (UW-mRS)6 monthsThe mRS is a 7-level ordinal scale used to evaluate functional outcomes after stroke. The categories are defined as follows: 0 = No symptoms; 1. = No significant disability. Able to carry out all usual activities, despite some symptoms; 2. = Slight disability. Able to look after own affairs without assistance, but unable to carry out all previous activities; 3. = Moderate disability. Requires some help, but able to walk unassisted; 4. = Moderately severe disability. Unable to attend to own bodily needs without assistance, and unable to walk unassisted; 5. = Severe disability. Requires constant nursing care and attention, bedridden, incontinent; 6. = Dead; Utility-weighted modified Rankin Scale (UW-mRS), which applies utility values to each mRS category as shown below: mRS 0= UW-mRS 1;mRS 1= UW-mRS 0.91; mRS 2= UW-mRS 0.76; mRS 3= UW-mRS 0.65; mRS 4= UW-mRS 0.33; mRS 5= UW-mRS 0; mRS 6= UW-mRS 0.

Secondary

MeasureTime frameDescription
Ordinal shift in modified Rankin Scale6 monthsOrdinal shift analysis of the modified Rankin Scale (mRS), which measures the degree of disability or dependence in daily activities after stroke. The scale ranges from 0 (no symptoms) to 6 (death). This outcome assesses whether there is a shift toward better or worse functional status across the full ordinal distribution of mRS scores.
Excellent functional neurological outcome6 monthsExcellent functional neurological outcome means modified Rankin scale (mRS) scores 0-1. The minimum mRS is 0 (no symptoms) while the maximum mRS is 6 (death). The higher the mRS score is the worse outcome is.
Independent functional neurological outcome6 monthsIndependent functional neurological outcome means modified Rankin scale (mRS) scores 0-2. The minimum mRS is 0 (no symptoms) while the maximum mRS is 6 (death). The higher the mRS score is the worse outcome is.
Health Related Quality of Life6 monthsHealth Related Quality of Life based on EuroQol 5 Dimension 5 Level (EQ-5D-5L).The EQ-5D-5L is a generic instrument for describing and valuing health. It assesses five domains: Mobility, Self-Care, Usual Activities, Pain/Discomfort, and Anxiety/Depression. Each dimension has five response categories corresponding to: no problems, slight, moderate, severe and extreme problems.
Hematoma evacuation rate30 days after treatmentHematoma clearance rate at Day1 and Day30 after treatment
Total medical expenses during hospitalization6 monthTotal medical expenses during hospitalization
Total length of hospital stay6 monthsTotal length of hospital stay refers to the number of days from the date of hospital admission to the date of discharge.
AD8 Dementia Screening6 monthsThe AD8 (Eight-item Interview to Differentiate Aging and Dementia) is a brief screening tool designed to distinguish normal aging from possible dementia. The AD8 focuses on changes in memory, orientation, judgment, and daily activities. A greater number of Yes responses indicates higher likelihood of cognitive impairment or dementia, warranting further diagnostic evaluation.

Other

MeasureTime frameDescription
Mortality6 monthsMortality status equals to death which will be collected at all visits during the trial period
Serious Adverse Events (SAEs)6 monthsThe reporting and notification of SAEs follows ICH-GCP guidelines. According to the WHO International Drug Monitoring Centre (1994), an SAE is any adverse medical event that: Leading to death; Life-threatening; Requires hospitalization or prolongs existing hospitalization; Results in persistent or significant disability/incapacity; Congenital anomaly/birth defect; etc.

Countries

China

Contacts

Primary ContactGao Chen
d-chengao@zju.edu.cn+86 0571-87784813

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026