- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT00644241
Efficacy Of Autologous Bone Marrow Derived Stem Cell Transplantation In Patients With Type 2 Diabetes Mellitus (SCT)
India is the "Diabetes Capital of the World" with 41 million Indians having diabetes i.e. every fifth diabetic in the world is an Indian1. Type 2 Diabetes Mellitus (T2DM) constitutes the major chunk of diabetes and has insulin resistance as the hallmark feature in the pathogenesis. However, with the progression of the disease the insulin resistance becomes stable whereas β - cell function shows a gradual decline due to its ongoing apoptosis2. This ultimately leads to inability of the β - cells to cope up with the increased demand of insulin caused due to insulin resistance and manifests as hyperglycemia. As β - cell failure is progressive and inexorable, as demonstrated in United Kingdom Prospective Diabetes Study3, most of the patients with T2DM would eventually require insulin and it would be difficult to achieve to attain a strict glycemic control . It is well known that diabetes related complications which account for morbidity and mortality in this disease can be prevented or delayed by strict glycemic control. However, even with intensive insulin therapy it has been shown that glycemic control can never be perfect with patients exhibiting hyperglycemia or hypoglycemia during 24 hour glucose profile4. Also insulin therapy is not physiological as there is no hepatic "first - pass" metabolism of insulin which is required for halting the hepatic glucose output, which is responsible for fasting hyperglycemia5. This led the researchers to evolve various strategies of β - cell replacement therapy e.g. pancreatic transplantation and islet cell transplantation. Initially the results of islet cell transplantation were dismal but after the induction of glucocorticoid free immunosuppressive therapy and the use of adequate number of islet cells from multiple donors, the results of islet cell transplantation have been better6. However, islet cell transplantation has its own limitations viz insufficient supply, being technically demanding and requirement of lifelong immunosuppressive therapy in the recipient.
These shortcomings can be overcome by the use of stem cells which is an inexhaustible source of β -cells. Stem cells are primitive cells capable of differentiating into mature cells of the body of various lineages. Stem cells can be obtained from various sources like blastocyst (embryonal stem cells), umbilical cord or bone marrow. There is an evidence to suggest that stem cell transplantation can lead to improvement in pancreatic endocrine function and improvement in glycemic control in diabetic mice7,8,9,10 through various mechanisms such as transdifferentiation or regeneration of endothelial cell in the damaged islets which in turn lead to regeneration of islet cells by paracrine action11. However, till date there is no study that demonstrates that stem cell therapy can be effective in patients with T2DM for their glycemic control.
The investigators propose to carry out autologous bone marrow - derived stem cell transplantation (ABMSCT) in patients of T2DM, obtained from their own bone marrow and its superselective injection into the gastroduodenal artery after purification without any immunosuppressive regimen.
Aim:
The aim of this study is to reverse hyperglycemia and insulin dependency by ABMSCT in patients with type 2 diabetes mellitus.
Hypothesis:
The investigators hypothesize that ABMSCT into the pancreas of patients with T2DM, aged more than 30 years with insulin requirement of 0.7 U/ kg body weight/day or 50 U / day whichever is lesser, will lead to abolition or reduction of insulin requirement by more than or equal to 50% in these patients over a period of 6 months. It is assumed that ABMSCT will lead these patients to regenerate functional β - cells by transdifferentiation or by regeneration of endothelial cell which in turn cause β - cells neogenesis by paracrine effect.
Objectives:
Primary objective:
- Abolition or reduction of insulin requirement by > 50% by the end of 6 months of ABMSCT.
- To evaluate the increment of Glucagon stimulated C - peptide response at the end of 6 months of ABMSCT, as compared to the baseline values.
Secondary objective:
- Any reduction in requirement of insulin dosage.
- Improvement of HbA1c levels as compared to baseline.
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Tipo di studio
Iscrizione (Effettivo)
Fase
- Fase 2
Contatti e Sedi
Luoghi di studio
-
-
-
Chandigarh, India
- PGIMER
-
-
Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- Patients with type 2 diabetes mellitus more than 30 and less than 75 years of age.
- Insulin requirement 0.7 IU/kg/d or 50 IU/d, whichever is lesser.
- GAD antibody negative status.
Exclusion Criteria:
- Patients with T1DM or secondary diabetes.
- Patients with serum creatinine > 1.5 mg/dl.
- Abnormal liver function tests (defined as value of transaminases > 3 times the upper value of normal or serum bilirubin higher than normal for the reference value for the laboratory).
- History of myocardial infarction or unstable angina in the previous 3 months.
- History of malignancy or current malignancy other than non-melanomatous skin cancer.
- Patients with active infections
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: N / A
- Modello interventistico: Assegnazione di gruppo singolo
- Mascheramento: Nessuno (etichetta aperta)
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
---|---|
Sperimentale: stem cell
|
stem cells will be harvested from the iliac crest of the patients
autologous bone marrow derived stem cells will be transplanted in the gastroduodenal artery of the patient angiographically
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Lasso di tempo |
---|---|
Abolition or reduction of insulin requirement by > 50% by the end of 6 months of ABMSCT
Lasso di tempo: 6 months
|
6 months
|
Increment in glucagon stimulated C - peptide levels at the end of 6 months of ABMSCT, as compared to baseline
Lasso di tempo: 6 months
|
6 months
|
Misure di risultato secondarie
Misura del risultato |
Lasso di tempo |
---|---|
Any reduction in requirement of insulin dosage
Lasso di tempo: 6 months
|
6 months
|
Improvement of HbA1c levels as compared to baseline
Lasso di tempo: 6 months
|
6 months
|
Collaboratori e investigatori
Studiare le date dei record
Studia le date principali
Inizio studio
Completamento primario (Effettivo)
Completamento dello studio (Effettivo)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- SCT
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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