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Allogeneic Mesenchymal Stromal Cells for Angiogenesis and Neovascularization in No-option Ischemic Limbs (SAIL)

2. maj 2018 opdateret af: Martin Teraa, MD, PhD

Allogeneic Mesenchymal Stromal Cells for Angiogenesis and Neovascularization in No-option Ischemic Limbs; A Double-blind, Randomized, Placebo-controlled Trial

The primary objective of this trial is to investigate whether intramuscular administration of allogeneic mesenchymal stromal cells (MSC) is safe and potentially effective, assessed as a composite outcome of mortality, limb status, clinical status (Rutherford classification) and pain score (visual analogue scale), in patients with no-option severe limb ischemia (SLI).

The investigators will conduct a double-blind, placebo-controlled randomized clinical trial to investigate the effect of allogeneic bone marrow(BM)-derived MSC in patients with SLI, who are not eligible for conventional surgical or endovascular therapies. The investigators intend to include 60 patients, who will be randomized to undergo 30 intramuscular injections with either BM-MSC (30 injection sites with 5*10^6 MSCs each) or placebo in the lower leg of the ischemic extremity. Primary outcome i.e. therapy success, a composite outcome considering mortality, limb status, clinical status (Rutherford classification) and changes in pain score, will be assessed at six months.

Studieoversigt

Undersøgelsestype

Interventionel

Tilmelding (Forventet)

60

Fase

  • Fase 2
  • Fase 3

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

      • Utrecht, Holland, 3508 GA
        • University Medical Center Utrecht

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Age > 18 years
  • Severe Peripheral Artery Disease (PAD; Fontaine class III and / or IV):

    • Fontaine III (Rutherford 4): persistent, recurring rest pain requiring analgesia
    • Fontaine IV (Rutherford 5): non-healing ulcers present for > 4 weeks without evidence of improvement in response to conventional therapies
  • Ankle brachial index < 0.6 or unreliable (non-compressible or not in proportion to the Fontaine classification)
  • Not eligible for surgical or endovascular revascularization
  • Written informed consent.

Exclusion Criteria:

  • History of neoplasm or malignancy in the past 10 years
  • Serious known concomitant disease with life expectancy of less than one year
  • Rutherford 6 in which amputation on the short term (within 1-2 weeks) is inevitable
  • Pregnancy or unwillingness to use adequate contraception during study
  • Uncontrolled acute or chronic infection with systemic symptoms
  • Follow-up impossible.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Firedobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Allogeneic Mesenchymal Stromal Cell
Intramuscular Allogeneic Bone marrow-derived Mesenchymal Stromal Cell Injection
Intramuscular allogeneic BM-MSC injection: MSCs will be extracted from BM of healthy volunteers, expanded with human platelet lysate, and stored. Patients will receive intramuscular allogeneic BM-MSC injections at 30 sites in the lower leg of the ischemic limb. Blinded syringes are provided and cell suspensions will be injected intramuscularly by an experienced operator into multiple sites (30 sites, 1-1.5cm in depth, volume of 1.0mL containing 5*10^6 MSC per site; total 150*10^6 BM-MSCs) in the ischemic lower extremity. Injections will be performed under IV analgesia (fentanyl) and sedation (midazolam) if necessary.
Andre navne:
  • Allogeneic bone marrow-derived mesenchymal stromal cells
  • Allogeneic bone marrow-derived mesenchymal stem cells
  • Allogeneic BM-MSC
Placebo komparator: Placebo
Intramuscular placebo injection
Intramuscular placebo injections. Patients will receive intramuscular placebo injections at 30 prespecified sites in the lower leg of the ischemic limb. Blinded syringes are provided and will be injected intramuscularly by an experienced operator into multiple sites (30 sites, 1-1.5cm in depth, volume of 1.0mL placebo per site) in the ischemic lower extremity. Injections will be performed under IV analgesia (fentanyl) and sedation (midazolam) if necessary.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Therapy Success
Tidsramme: 6 months
Composite outcome measure considering mortality, limb status, clinical classification and changes in pain score. To be a "success" a subject must: A, be alive; B, be without a major amputation on the index limb; C, have not worsened in Rutherford classification or visual analog pain scale; and D, have improved in either Rutherford classification or visual analog pain scale. Subjects not meeting all of the criteria are classified as failures.
6 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Major amputation
Tidsramme: 2, 6, 12, 24, and 60 months
Amputation sited proximal from the ankle joint
2, 6, 12, 24, and 60 months
Minor amputation
Tidsramme: 2, 6, 12, 24, and 60 months
Amputation sited distal from the ankle joint
2, 6, 12, 24, and 60 months
Therapy Success
Tidsramme: 2, 6, 12, 24, and 60 months
Composite outcome measure considering mortality, limb status, clinical classification and changes in pain score. To be a "success" a subject must: A, be alive; B, be without a major amputation on the index limb; C, have not worsened in Rutherford classification or visual analog pain scale; and D, have improved in either Rutherford classification or visual analog pain scale. Subjects not meeting all of the criteria are classified as failures.
2, 6, 12, 24, and 60 months
Mortality
Tidsramme: 2, 6, 12, 24, and 60 months
Mortality
2, 6, 12, 24, and 60 months
Ulcer healing
Tidsramme: 2 and 6 months
Changes in the number and extent of leg ulcers,
2 and 6 months
Changes in pain
Tidsramme: 2, 6, 12, 24, and 60 months
Resolution of rest pain and alteration in visual analogue pain (VAS) score
2, 6, 12, 24, and 60 months
Pain-free walking distance
Tidsramme: 2 and 6 months
Changes in pain free walking distance (treadmill at 3 km/h without incline)
2 and 6 months
Ankle-brachial index (ABI)
Tidsramme: 2 and 6 months
Alterations in ankle-brachial index (ABI)
2 and 6 months
Toe-brachial index (TBI)
Tidsramme: 2 and 6 months
Alterations in toe-brachial index (TBI)
2 and 6 months
Quality of life based on EuroQol 5D (EQ5D) questionnaire scores
Tidsramme: 2, 6, 12, 24, and 60 months
Alterations in quality of life assessed using EuroQoL 5D quality of life questionnaire
2, 6, 12, 24, and 60 months
Quality of life based on Short Form 36 (SF36) questionnaire scores
Tidsramme: 2, 6, 12, 24, and 60 months
Alterations in quality of life assessed using Short Form 36 quality of life questionnaire
2, 6, 12, 24, and 60 months
Clinical status according to Fontaine classification
Tidsramme: 2, 6, 12, 24, and 60 months
Alterations clinical status according to Fontaine classification
2, 6, 12, 24, and 60 months
Clinical status according to Rutherford classification
Tidsramme: 2, 6, 12, 24, and 60 months
Alterations clinical status according to Rutherford classification
2, 6, 12, 24, and 60 months

Andre resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Correlation of in-vitro angiogenic assay (Boyden chamber migration assays to test migration towards a platelet derived growth factor gradient) of donor MSC with clinical effect
Tidsramme: 6 months
The investigators will use Boyden chamber migration assays to test migration towards a platelet derived growth factor gradient in order to test angiogenic capacity of the batches of donor Mesenchymal Stromal Cells (MSC) and correlate these with the primary and secondary outcomes (et al. Mol Ther. 2014).
6 months
Correlation of in-vitro angiogenic assay (Endothelial repair assay using a scratch wound assay using MSC-derived conditioned medium) of donor MSC with clinical effect
Tidsramme: 6 months
The investigators will use endothelial repair assays using a scratch wound assay with MSC-derived conditioned medium to test angiogenic capacity of the batches of donor Mesenchymal Stromal Cells (MSC) and correlate these with the primary and secondary outcomes (see Gremmels et al. Mol Ther. 2014).
6 months
Correlation of in-vitro angiogenic assay (Matrigel tubule forming assay) of donor MSC with clinical effect
Tidsramme: 6 months
The investigators will use matrigel tubule forming assays using MSC-derived conditioned medium to test angiogenic capacity of the batches of donor Mesenchymal Stromal Cells (MSC) and correlate these with the primary and secondary outcomes (see Gremmels et al. Mol Ther. 2014).
6 months

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Efterforskere

  • Ledende efterforsker: Marianne C Verhaar, MD, PhD, UMC Utrecht
  • Studiestol: Gert Jan de Borst, MD, PhD, UMC Utrecht

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Forventet)

1. december 2018

Primær færdiggørelse (Forventet)

1. december 2020

Studieafslutning (Forventet)

1. juli 2021

Datoer for studieregistrering

Først indsendt

27. januar 2017

Først indsendt, der opfyldte QC-kriterier

1. februar 2017

Først opslået (Skøn)

3. februar 2017

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

3. maj 2018

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

2. maj 2018

Sidst verificeret

1. maj 2018

Mere information

Begreber relateret til denne undersøgelse

Plan for individuelle deltagerdata (IPD)

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UBESLUTET

IPD-planbeskrivelse

Study outcomes will be published in international peer-reviewed journals and individual participant data (IPD) will become available on request.

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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