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Allogeneic Adipose Tissue-derived Mesenchymal Stem Cells in Ischemic Stroke (AMASCIS-02)

Primary Purpose

Ischemic Stroke, Adipose Tissue-derived Stem Cell, Functional Status

Status
Recruiting
Phase
Phase 2
Locations
Spain
Study Type
Interventional
Intervention
Alogenic adipose tissue-derived stem cells
Placebo solution
Sponsored by
Instituto de Investigación Hospital Universitario La Paz
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Ischemic Stroke

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Ischemic stroke patients > 18 years old
  • Patients must be able to be treated within the first 4 days (+/- 1) from acute stroke symptoms onset. If the time of symptom onset is unknown, this shall refer to the last time the patient was observed as asymptomatic.
  • A computed tomography (CT) or magnetic resonance imaging (MRI) scan compatible with the clinical diagnosis of acute non-lacunar IS in the region of the middle cerebral artery (with cortical or subcortical involvement).
  • A score on the National Institute of Health Stroke Scale (NIHSS) of 8-20, with at least two of these points in sections 5 and 6 (motor deficit) at the time of inclusion. NIHSS evaluation for screening of these patients will take place after finalization of reperfusion therapies (if they have been performed) providing that the clinical condition of the patient is stable with no prevision of immediate recovery. A measurable focal neurologic disabilty must persist to the time of treatment.
  • A prestroke score on the Modified Rankin Scale (mRS) ≤1 (no significant disability).
  • Female subjects non-child bearing potential. Female subjects who are of non-childbearing potential are defined as meeting at least 1 of the following criteria:

Have undergone a documented hysterectomy and/or bilateral oophorectomy; Have medically confirmed ovarian failure; or Achieved postmenopausal status, defined as follows: cessation of regular menses for at least 12 consecutive months with no alternative pathological or physiological cause.

  • Female subjects of child-bearing potential need a negative pregnancy test and must agree to use adequate contraception for the duration of the study (from screening through the final of the study). The following types of contraception are considered adequate provided they are locally authorized for use: oral, transdermal, or injectable (depot) estrogen and/or progestogen, selective estrogen receptor modulator therapy, intrauterine contraceptive device, double barrier method (e.g., condom and diaphragm or spermicidal gel) or vasectomy.
  • Signed informed consent

Exclusion Criteria:

  • Comatose patients; patients with a score of 2 or more on item 1a of the NIHSS related to the degree of awareness.
  • Evidence on neuroimaging of brain tumour, cerebral oedema with midline shift and a clinically significant compression of ventricles, cerebellar or brainstem infarction and intraventricular, intracerebral or subarachnoid haemorrhage. Small petechial haemorrhages are not exclusion criteria.
  • Current drug or alcohol use or dependence
  • Active infectious disease, including human immunodeficiency virus, hepatitis B, and hepatitis C. A controlled infection is not an exclusion criterion.
  • Pre-existing dementia.
  • A health status, any clinical condition (eg, short life expectancy, and coexisting disease or a surgical or endovascular planned procedure) or other characteristic that precludes appropriate diagnosis, treatment, or follow-up in the trial.
  • Patients who are participating in another clinical trial.
  • Inability or unwillingness of the individual or their legal guardian/representative to provide written informed consent.

Sites / Locations

  • Hospital Universitario La PazRecruiting

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Placebo Comparator

Arm Label

Treatment group

Placebo group

Arm Description

15 patients will receive intravenous alogenic adipose tissue-derived stem cells in a single dose of one million cells per kg.

15 patients will receive a single intravenous placebo solution with the same appearance as the treatment group.

Outcomes

Primary Outcome Measures

Safety of administration of adipose tissue-derived mesenchymal stem cells measured as reported adverse events
Adverse events reported spontaneously or in response to questions not addressed.
Safety of administration of adipose tissue-derived mesenchymal stem cells measured as neurological o systemic complications
Neurological or systemic complications

Secondary Outcome Measures

Efficacy of administration of adipose tissue-derived mesenchymal stem cells measured by the Modified Rankin Scale
Modified Rankin Scale (mRS): success is considered when the patient obtains a score of 0-3, and failure include scores of 4 to 6 at months 3,6,12 and 24. An additional exploratorry efficacy analysis of mRS shift at months 3,6,12 and 24 will also be made.
Efficacy of administration of adipose tissue-derived mesenchymal stem cells measured by the NIHSS
National Institute of Health Stroke Scale. It will be measured at all scheluded visits. Success is defined as an improvement of 75% or more from baseline. An additional exploratory analysis will look for differences in the distribution of median (IQR) and in the frequency of NIHSS ≤ 1between groups.
Efficacy of administration of adipose tissue-derived mesenchymal stem cells measuring blood brain repair biomarkers
Brain repair biomarkers in blood samples (GM-CSF, PDGF-BB, BDNF, VEGF, TGF-1, GFAP, MBP, MMP-3 and extracelular vesicles) measured at baseline, day 7 and mnth 3 after treatment or placebo administration.

Full Information

First Posted
August 6, 2019
Last Updated
May 26, 2023
Sponsor
Instituto de Investigación Hospital Universitario La Paz
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1. Study Identification

Unique Protocol Identification Number
NCT04280003
Brief Title
Allogeneic Adipose Tissue-derived Mesenchymal Stem Cells in Ischemic Stroke
Acronym
AMASCIS-02
Official Title
Allogeneic Adipose Tissue-derived Mesenchymal Stem Cells in Ischemic Stroke. A Phase IIB Multicenter Double Blind Placebo Controlled Clinical Trial
Study Type
Interventional

2. Study Status

Record Verification Date
May 2022
Overall Recruitment Status
Recruiting
Study Start Date
January 20, 2021 (Actual)
Primary Completion Date
July 15, 2023 (Anticipated)
Study Completion Date
July 15, 2023 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Instituto de Investigación Hospital Universitario La Paz

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This is a multicenter, doble blind, placebo controlled clinical trial to asses de safety and efficacy of intravenous administration of alogenic adipose tissue-derived mesenchymal stem cells in the first four days from acute ischemic stroke.
Detailed Description
Two spanish hospitals with teams experienced in stroke management will participate in this study, recruiting a total of 30 patients between them both. After confirming that patients fulfill the inclusion criteria and none of the exclusion criteria, informed consent will be signed and randomization will take place (1:1). There are two different groups of treatment; the first group will be treated with intravenous alogenic adipose tissue-derived stem cells (at a concentration of one million cells per kg) within the first four days from stroke onset, the second group will be treated will an intravenous placebo solution. Follow-up will last for 24 months during which safety issues such as adverse events and neurological and systemic complications will be assessed at 24 hours, 7 days and 3, 6, 12,18 and 24 months after treatment. Neurological disability using the modified Rankin Scale and National Institute of Health Stroke Scale will also be registered in every scheduled visit. Biochemical markers of tissue repair (GM-CSF, BDNF, VEGF, TGF-1, GFAP, MBP, MMP-3) as well as extracellular vesicles will be extracted on baseline visit as well as 7 days and 3 months after treatment.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Ischemic Stroke, Adipose Tissue-derived Stem Cell, Functional Status

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Model Description
Two different treatment grupos; intravenous alogenic adipose tissue-derived mesenchymal stem cells or intravenous placebo solution
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Masking Description
Treatment and placebo solutions have identical appearance. Protocols will be designed to ensure that the physician evaluating patient safety and efficacy outcome as well as laboratory analysis, will not have access to the randomisation codes.
Allocation
Randomized
Enrollment
30 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Treatment group
Arm Type
Experimental
Arm Description
15 patients will receive intravenous alogenic adipose tissue-derived stem cells in a single dose of one million cells per kg.
Arm Title
Placebo group
Arm Type
Placebo Comparator
Arm Description
15 patients will receive a single intravenous placebo solution with the same appearance as the treatment group.
Intervention Type
Other
Intervention Name(s)
Alogenic adipose tissue-derived stem cells
Intervention Description
Concentration of the cells: 10 million cells / ml
Intervention Type
Drug
Intervention Name(s)
Placebo solution
Intervention Description
Placebo intravenous solution, same appearance stem cells solution
Primary Outcome Measure Information:
Title
Safety of administration of adipose tissue-derived mesenchymal stem cells measured as reported adverse events
Description
Adverse events reported spontaneously or in response to questions not addressed.
Time Frame
Up to 24 months after treatment or placebo administration
Title
Safety of administration of adipose tissue-derived mesenchymal stem cells measured as neurological o systemic complications
Description
Neurological or systemic complications
Time Frame
Up to 24 months after treatment or placebo administration
Secondary Outcome Measure Information:
Title
Efficacy of administration of adipose tissue-derived mesenchymal stem cells measured by the Modified Rankin Scale
Description
Modified Rankin Scale (mRS): success is considered when the patient obtains a score of 0-3, and failure include scores of 4 to 6 at months 3,6,12 and 24. An additional exploratorry efficacy analysis of mRS shift at months 3,6,12 and 24 will also be made.
Time Frame
Up to 24 months after treatment or placebo administration
Title
Efficacy of administration of adipose tissue-derived mesenchymal stem cells measured by the NIHSS
Description
National Institute of Health Stroke Scale. It will be measured at all scheluded visits. Success is defined as an improvement of 75% or more from baseline. An additional exploratory analysis will look for differences in the distribution of median (IQR) and in the frequency of NIHSS ≤ 1between groups.
Time Frame
Up to 24 months after treatment or placebo administration
Title
Efficacy of administration of adipose tissue-derived mesenchymal stem cells measuring blood brain repair biomarkers
Description
Brain repair biomarkers in blood samples (GM-CSF, PDGF-BB, BDNF, VEGF, TGF-1, GFAP, MBP, MMP-3 and extracelular vesicles) measured at baseline, day 7 and mnth 3 after treatment or placebo administration.
Time Frame
Up to 3 months after treatment or placebo administration

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Ischemic stroke patients > 18 years old Patients must be able to be treated within the first 4 days (+/- 1) from acute stroke symptoms onset. If the time of symptom onset is unknown, this shall refer to the last time the patient was observed as asymptomatic. A computed tomography (CT) or magnetic resonance imaging (MRI) scan compatible with the clinical diagnosis of acute non-lacunar IS in the region of the middle cerebral artery (with cortical or subcortical involvement). A score on the National Institute of Health Stroke Scale (NIHSS) of 8-20, with at least two of these points in sections 5 and 6 (motor deficit) at the time of inclusion. NIHSS evaluation for screening of these patients will take place after finalization of reperfusion therapies (if they have been performed) providing that the clinical condition of the patient is stable with no prevision of immediate recovery. A measurable focal neurologic disabilty must persist to the time of treatment. A prestroke score on the Modified Rankin Scale (mRS) ≤1 (no significant disability). Female subjects non-child bearing potential. Female subjects who are of non-childbearing potential are defined as meeting at least 1 of the following criteria: Have undergone a documented hysterectomy and/or bilateral oophorectomy; Have medically confirmed ovarian failure; or Achieved postmenopausal status, defined as follows: cessation of regular menses for at least 12 consecutive months with no alternative pathological or physiological cause. Female subjects of child-bearing potential need a negative pregnancy test and must agree to use adequate contraception for the duration of the study (from screening through the final of the study). The following types of contraception are considered adequate provided they are locally authorized for use: oral, transdermal, or injectable (depot) estrogen and/or progestogen, selective estrogen receptor modulator therapy, intrauterine contraceptive device, double barrier method (e.g., condom and diaphragm or spermicidal gel) or vasectomy. Signed informed consent Exclusion Criteria: Comatose patients; patients with a score of 2 or more on item 1a of the NIHSS related to the degree of awareness. Evidence on neuroimaging of brain tumour, cerebral oedema with midline shift and a clinically significant compression of ventricles, cerebellar or brainstem infarction and intraventricular, intracerebral or subarachnoid haemorrhage. Small petechial haemorrhages are not exclusion criteria. Current drug or alcohol use or dependence Active infectious disease, including human immunodeficiency virus, hepatitis B, and hepatitis C. A controlled infection is not an exclusion criterion. Pre-existing dementia. A health status, any clinical condition (eg, short life expectancy, and coexisting disease or a surgical or endovascular planned procedure) or other characteristic that precludes appropriate diagnosis, treatment, or follow-up in the trial. Patients who are participating in another clinical trial. Inability or unwillingness of the individual or their legal guardian/representative to provide written informed consent.
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Blanca Fuentes Gimeno
Phone
917277444
Email
blanca.fuentes@salud.madrid.org
First Name & Middle Initial & Last Name or Official Title & Degree
Elena de Celis Ruiz
Phone
917277444
Email
elena.decelis@salud.madrid.org
Facility Information:
Facility Name
Hospital Universitario La Paz
City
Madrid
ZIP/Postal Code
28046
Country
Spain
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Blanca Fuentes Gimeno
Phone
917277444
Email
blanca.fuentes@salud.madrid.org
First Name & Middle Initial & Last Name & Degree
Elena de Celis Ruiz
Phone
917277444
Email
elena.decelis@salud.madrid.org

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
Data will be available from the corresponding author on reasonable request, considered compliant General Data Protection Regulation and the data-sharing agreement is approved by the relevant Spanish authorities. Upon study finalization, anonymized individual patient data will be available on a public repertoire of the Community of Madrid.
Citations:
PubMed Identifier
34373315
Citation
de Celis-Ruiz E, Fuentes B, Moniche F, Montaner J, Borobia AM, Gutierrez-Fernandez M, Diez-Tejedor E. Allogeneic adipose tissue-derived mesenchymal stem cells in ischaemic stroke (AMASCIS-02): a phase IIb, multicentre, double-blind, placebo-controlled clinical trial protocol. BMJ Open. 2021 Aug 9;11(8):e051790. doi: 10.1136/bmjopen-2021-051790.
Results Reference
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Allogeneic Adipose Tissue-derived Mesenchymal Stem Cells in Ischemic Stroke

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