Satralizumab in Aneurysmal Subarachnoid Hemorrhage (SASH)

A Phase 1 Clinical Trial of Satralizumab as a Treatment for Aneurysmal Subarachnoid Hemorrhage

In this study, satralizumab will be administered to see whether satralizumab is safe in patients with a burst brain aneurysm and if it may prevent strokes in patients with a burst brain aneurysm.

Study Overview

• Status: Withdrawn
• Conditions: Delayed Cerebral Ischemia; Aneurysmal Subarachnoid Hemorrhage
• Intervention / Treatment: Drug: Satralizumab

Detailed Description

SASH is a prospective single-arm, single-center, open-label Phase 1 trial of satralizumab 120mg subcutaneous Day 0 and Day 14 in subjects with Hunt Hess grade 1-3, Fisher score 3 aneurysmal subarachnoid hemorrhage and an external ventricular drain or lumbar drain. The trial is designed to demonstrate safety and to detect a signal that satralizumab prevents delayed cerebral ischemia in these patients.

• Study Type: Interventional
• Phase: Early Phase 1

Contacts and Locations

Study Locations

• United States
  • Florida
    • Gainesville, Florida, United States, 32608
      • University of Florida (UF) Health Shands Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 89 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Adult patients (aged ≥18 years) with Hunt Hess Grade 1-3, Fisher score 3 or 3 and 4, aneurysmal subarachnoid hemorrhage within 72 hours of symptom onset (ruptured aneurysm confirmed by CTA, MRA or DSA)
• Must have surgical or endovascular adequate occlusion of the ruptured aneurysm
• Must have external ventricular drain or lumbar drain.
• Female subjects of child-bearing potential must have negative pregnancy test
• Signed informed consent from subject or legally authorized representative
• Able and willing to comply with followup visits
• Women and males of childbearing potential must agree to appropriate methods of contraception during study participation

Exclusion Criteria:

• Evidence for vasospasm or DCI prior to study enrollment
• Hemodynamically unstable pre-enrollment
• Severe or unstable concomitant condition or disease (e.g., known significant neurological deficit, cancer, hematologic or coronary disease), or chronic condition (e.g., liver disease, kidney disease, or psychiatric disorder), that may increase the risk associated with study participation, or may interfere with the interpretation of study results
• Subjects who have received an investigational product or participated in another interventional clinical study within 30 days prior to enrollment.
• Known hypersensitivity to satralizumab and/or other biologics agents
• Serious infection defined as pneumonia, sepsis/septic shock, and neutropenic fever prior to enrollment
• Any previous treatment with IL-6 inhibitory therapy (e.g. tocilizumab), alemtuzumab, total body irradiation or bone marrow transplantation within 6 months prior to baseline.
• Any previous treatment with anti-CD20, anti-CD19, eculizumab, belimumab, interferon, natalizumab, glatiramer acetate, fingolimod, teriflunomide or dimethyl fumarate within 6 months prior to baseline.
• Any previous treatment with anti-CD4, cladribine or mitoxantrone within 2 years prior to baseline
• Pregnant or breastfeeding, or intending to become pregnant during the study or within 3 months after the final dose of satralizumab
• Women of childbearing potential must have a negative serum pregnancy test result prior to initiation of study drug.
• Any surgical procedure (except for minor surgeries) within 4 weeks prior to baseline.
• Evidence of other demyelinating disease or progressive multifocal leukoencephalopathy (PML).
• Evidence of serious uncontrolled concomitant diseases that may preclude patient participation, such as: other nervous system disease, cardiovascular disease, hematologic/hematopoiesis disease, respiratory disease, muscular disease, endocrine disease, renal/urologic disease, digestive system disease, congenital or acquired severe immunodeficiency.
• Known active infection (excluding fungal infections of nail beds or caries dentium) within 4 weeks prior to baseline.
• History of diverticulitis that, in the Investigator's opinion, may lead to increased risk of complications such as lower gastrointestinal perforation.
• Evidence of active or untreated latent tuberculosis (TB; excluding patients receiving chemoprophylaxis for latent TB infection).
• Evidence of active interstitial lung disease
• Receipt of any live or live attenuated vaccine within 6 weeks prior to baseline and throughout the duration of the study.
• History of malignancy within the last 5 years, including solid tumors, hematologic malignancies and in situ carcinoma (except basal cell and squamous cell carcinomas of the skin, or in situ carcinoma of the cervix uteri that have been completely excised and cured).
• Laboratory exclusion criteria (at screening):
• White blood cells (WBC) <3.0 x103/μL
• Absolute neutrophil count (ANC) <2.0 x103/μL
• Absolute lymphocyte count <0.5 x103/μL
• Platelet count <10 x 104/μL
• Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) >1.5 times the upper limit of normal (ULN).
• Patient with known medical history at screening listed for the following must be excluded from this trial:
• Evidence of chronic active hepatitis B (HBV)
• Evidence of chronic active hepatitis C (HCV)
• Positive for hepatitis C virus (HCV) antigen
• Positive for hepatitis B surface antigen (HBsAg)
• Known HIV infection.
• Viral antigen tests for HBV, HCV and HIV to be performed on Day 0 (day of first dose of satralizumab). If the result of HBV, HCV, or HIV comes back positive the 2nd dose of satralizumab (Day 14) will not be administered
• Illicit drug or alcohol abuse within 12 months prior to screening, in the investigator's judgment
• Poor peripheral venous access
• Serious infection requiring oral or IV antibiotics prior to screening
• Any serious medical condition or abnormality in clinical laboratory tests that, in the investigator's judgment, precludes the patient's safe participation in and completion of the study
• History or presence of an abnormal ECG that is clinically significant in the investigator's opinion, including complete left bundle branch block, second- or third degree atrioventricular heart block, or evidence of prior myocardial infarction

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Satralizumab; Subjects will receive satralizumab 120mg subcutaneous Day 0 and Day 14 after enrollment.	Drug: Satralizumab; 120mg subcutaneous Day 0 and Day 14

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of participants with elevation of liver transaminases	Elevation of liver transaminase (ALT, AST) is defined as >5x upper limit of normal.	baseline up to 21 days
Number of participants with neutropenia	Neutropenia is defined as neutrophil count below 1 x 10^9/L.	baseline up to 21 days
Number of participants with decreased platelet count	Decreased platelet count is defined as a platelet count below the lower institutional limit of normal.	baseline up to 21 days
Frequency of observed and reported adverse events	An adverse event will be defined as any unfavorable and unintended sign, symptom, or disease temporally associated with the use of an investigational medicinal product (IMP) or other protocol-imposed intervention, regardless of attribution.	baseline up to 90 days following the last administration of study treatment or study discontinuation/termination, whichever is earlier
Frequency of death	All deaths that occur during the protocol-specified AE reporting period, regardless of attribution, will be recorded.	baseline up to 90 days following the last administration of study treatment or study discontinuation/termination, whichever is earlier

Collaborators and Investigators

• Sponsor: University of Florida
• Collaborators: Genentech, Inc.
• Investigators: Principal Investigator: Brian Hoh, MD, University of Florida

Study record dates

Study Major Dates

• Study Start (Estimated): June 1, 2024
• Primary Completion (Actual): June 24, 2024
• Study Completion (Actual): June 24, 2024

Study Registration Dates

• First Submitted: February 3, 2023
• First Submitted That Met QC Criteria: February 13, 2023
• First Posted (Actual): February 14, 2023

Study Record Updates

• Last Update Posted (Actual): March 25, 2025
• Last Update Submitted That Met QC Criteria: March 3, 2025
• Last Verified: March 1, 2025

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Cerebrovascular Disorders; Brain Diseases; Central Nervous System Diseases; Nervous System Diseases; Vascular Diseases; Cardiovascular Diseases; Pathologic Processes; Brain Infarction; Infarction; Necrosis; Ischemia; Intracranial Hemorrhages; Stroke; Cerebral Infarction; Hemorrhage; Subarachnoid Hemorrhage; Brain Ischemia
• Other Study ID Numbers: OCR43615; IRB202201531 (Univ of Florida)

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No