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Intramuscular Mononuclear Cells and Mesenchymal Stem Cells Transplantation to Treat Chronic Critical Limb Ischemia

9. april 2015 opdateret af: Dr Hanafiah Harunarashid, National University of Malaysia

Phase II Efficacy Study of Intramuscular Autologous Bone Marrow Mononuclear Cells Plus Mesenchymal Stem Cell Implantation Versus Autologous Bone Marrow Mononuclear Cells Implantation Only in Patients With Chronic Critical Limb Ischemia

This is a randomized and single blinded study aimed to compare the efficacy between intramuscular autologous bone marrow mononuclear cells plus mesenchymal stem cell implantation and intramuscular autologous bone marrow mononuclear cells implantation only in patients with chronic critical limb ischemia. Patients will be randomized into two groups of equal number; patients in one group will be implanted with mononuclear cells and mesenchymal stem cells, and the other implanted with mononuclear cells only in the area of affected limb.

Studieoversigt

Status

Ukendt

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

When the long blood vessels supplying blood to the arms and legs become blocked (ischemic), patient will experience painful sensations in their calves when they walked which slowly become excruciating painful at rest. When the condition worsens, the patients will not be able to feel any pain from their legs and they will not know if there are any small ulcers or cuts on their legs. As a result, a small ulcer which goes unnoticed becomes bigger and can sometimes become infected. In the worst situations, infection might lead towards gangrene and septicaemia. Severe rest pain and/or ulcerations of ischemic limbs are defined as the state of chronic critical limb ischemia and at this point, amputation of the affected limb is suggested.

Conventional treatments include angioplasty/bypass operation to remove blood vessel blockage to restore blood supply, the use of prescribed medicines to aid in ulcer recovery and clear infection and debridement of damaged/infected tissue. Some procedures have to be performed multiple times. Amputation is inevitable in many cases because some blood capillaries cannot be corrected and restenosis of vessels is very common. Cell therapy with mononuclear cells and mesenchymal stem cells from bone marrow is promising because these stem cells are capable of stimulating and regenerating capillaries and blood vessels.

Undersøgelsestype

Interventionel

Tilmelding (Forventet)

50

Fase

  • Fase 2

Kontakter og lokationer

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

Studiesteder

  • Malaysia
      • Kuala Lumpur, Malaysia, 56000
        • Rekruttering
        • UKM Medical Centre
        • Kontakt:
          • Hanafiah Harunarashid, MD
        • Ledende efterforsker:
          • Hanafiah Harunarashid, MD
        • Underforsker:
          • Mohammad Azim Mohammad Idris, MD

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

20 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Clinical diagnosis of critical limb ischemia leading to ischemic ulcers in which amputation is indicated
  • Not suitable for, or remain symptomatic despite angioplasty, bypass operation or collateralization

Exclusion Criteria:

  • Contraindication to epidural anesthesia and bone marrow aspiration
  • Contraindication to contrast angiography
  • Evidence of neoplasia and bone marrow diseases
  • Any acute or chronic communicable diseases including Hepatitis B, Hepatitis C and HIV
  • Patients with a limited life expectancy (< 1 year)
  • Patients with myocardial infarction or stroke within 6 months
  • Patients with coronary intervention within 6 months
  • Renal impairment indicated by serum creatinine greater than two times upper limit of the normal range
  • Liver impairment indicated by serum aspartate transaminase and alanine transaminase greater than two times upper limit of normal
  • Any other co-morbidity which the physician deems as a contraindication to stem cell transplantation

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: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Mononuclear and mesenchymal stem cells
Autologous bone marrow-derived mononuclear cells and mesenchymal stem cells
Biologisk: Mononuclear and mesenchymal stem cells
Intramuscular administration into the ischemic limb
Andre navne:
  • BM-MNC and BM-MSC
Aktiv komparator: Mononuclear cells only
Autologous bone marrow-derived mononuclear cells
Biologisk: Mononuclear cells
Intramuscular administration into the ischemic limb
Andre navne:
  • BM-MNC

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in angiogenesis
Tidsramme: 1 month, 3 months, 6 months, 9 months, 12 months
Measurement of angiogenesis by presence of peripheral pulses, capillary refill and transcutaneous oxygen saturation (TCOS).
1 month, 3 months, 6 months, 9 months, 12 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Visuel analog score
Tidsramme: 1 måned, 3 måneder, 6 måneder, 9 måneder, 12 måneder
1 måned, 3 måneder, 6 måneder, 9 måneder, 12 måneder
Change in ulcer size
Tidsramme: 1 month, 3 months, 6 months, 9 months, 12 months
Measurement of ulcer size by clinical assessment and grid maps.
1 month, 3 months, 6 months, 9 months, 12 months
Exercise Treadmill Test
Tidsramme: 1 month, 3 months, 6 months, 9 months, 12 months
1 month, 3 months, 6 months, 9 months, 12 months
Improvement in vascularity and blood supply
Tidsramme: 1 month, 3 months, 6 months, 9 months and 12 months
Measured by digital subtraction angiography (DSA) and ankle brachial systemic pressure index (ABI).
1 month, 3 months, 6 months, 9 months and 12 months

Samarbejdspartnere og efterforskere

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

Sponsor

National University of Malaysia

Samarbejdspartnere

Cytopeutics Sdn. Bhd.

Efterforskere

  • Ledende efterforsker: Hanafiah Harunarashid, MD, UKM Medical Centre

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

1. marts 2011

Primær færdiggørelse (Forventet)

1. december 2015

Studieafslutning (Forventet)

1. februar 2016

Datoer for studieregistrering

Først indsendt

4. oktober 2011

Først indsendt, der opfyldte QC-kriterier

19. oktober 2011

Først opslået (Skøn)

21. oktober 2011

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

10. april 2015

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

9. april 2015

Sidst verificeret

1. april 2015

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • FF-113-2011
  • NMRR-11-904-9763 (Registry Identifier: National Medical Research Register)

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Kritisk lemmeriskæmi

Kliniske forsøg med Mononuclear and mesenchymal stem cells

Søg i lignende forsøg

Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Vietnam

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

Abonner