SGI-110 and Donor Lymphocyte Infusions (DLI) After Allogeneic Stem Cell Transplantation

Groupe Francophone des Myelodysplasies (Other)
Overall Status
Unknown status ID

Study Details

Study Description

Brief Summary

High risk MDS (Myelodysplastic Syndrome) patients will be treated with SGI-110 after Allogeneic Stem Cell Transplantation in the hypothesis that SGI-110 maintenance given early after HSCT can prevent relapse without increasing non-relapse mortality translating in an improved disease-free survival.

Condition or Disease Intervention/Treatment Phase
Phase 2

Detailed Description

Allogeneic stem cell transplant (HSCT) is the only curative treatment in patients with intermediate-2 and high risk patients (according to classical IPSS) but approximately 30% of patients relapse and 30% of patients die from non-relapse complications after HSCT. Risk factors for post-transplant outcome are related to the patient itself (age, comorbidity), the disease risk and transplant characteristics (higher relapse in patients receiving a reduced intensity conditioning regimen and in those receiving a T-cell depleted graft).

The risk of post-transplant relapse is however particularly high (> 60-70%) in patients with very poor cytogenetics according to the revised IPSS, patients with monosomal karyotype, and patients with TP53 mutation. Taking into account that these patients also have non-relapse mortality, expected post-transplant survival is very poor, less than 15% and more often 10%. It has been reported that 30 to 35% of those high risk patients respond to hypomethylating agents (HMA) but they have very short remission duration, less than 5 months in median. A recent study reported a prospective, uncontrolled trial including 84 patients with MDS, AML patients receiving Decitabine (DAC). The authors highlight that the response was better in patients with unfavorable cytogenetics and that TP53 clones was cleared after treatment. The cytogenetics was no more a prognostic factor suggesting that DAC has improved survival especially in high-risk patients who had an 11.6-month median survival. This study suggests that DAC is particularly encouraging in high-risk patients. Guadecitabine (SGI-110) is a novel hypomethylating dinucleotide of Decitabine and deoxyguanosine resistant to degradation by cytidine deaminase. Safety and tolerance of SGI-110 in patients with MDS has been reported and this drug is now considered as a potential treatment in patients with AML or MDS. The concept of post-transplant maintenance therapy with one HMA in AML and MDS has been studies by several teams and there are 2 prospective trials exploring escalating dose in 5-azacytidine (AZA) and DAC. a group has reported that DAC maintenance was safe and that there was no dose limiting toxicities with the highest dose tested at 15 mg/m2/day 5 days every 6 weeks from day 50 post-transplant. A phase II trial, the RICAZA study, has tested a maintenance HMA early after transplant from day 40. 37/51 pre-screened patients could receive AZA and only 10% experienced complications. Two-year OS was 50%. HMA induces leukemic differentiation and re-expression of tumor or viral associated genes that had been epigenetically silenced. At high dose, cell die from apoptosis triggered by DNA synthesis arrest and at low doses, cells survive but change their gene expression to favor differentiation. Several groups have demonstrated effects of HMA on T cell-mediated anti-tumor activity which might promote graft-versus-leukemia or MDS effect. In another hand, HMA have been reported to increase the frequency of Tregs after HSCT and lower acute GVHD which might lower non-relapse mortality. Regarding GVHD, acute GVHD should be prevented due to the higher non-relapse mortality associated with acute GVHD. In contrast, several studies have highlighted the benefit of chronic GVHD on relapse risk justifying immunotherapy, donor lymphocyte infusion (DLI) later after HSCT to prevent relapse. The therapeutic strategy combining pre-emptive HMA in combination with DLI has been tested in a prospective study, the RELAZA trial, based on CD34 chimerism.

Taken together, these studies provide a rationale for the early administration of DMA, ie:

SGI 110, associated with late DLI after HSCT for AML and MDS. The hypothesis is that SGI 110 maintenance given early after HSCT can prevent relapse without increasing non-relapse mortality translating in an improved disease-free survival. This hypothesis will be tested in the higher risk patients, especially those with TP53 for whom relapse risk is higher than 50%.

Study Design

Study Type:
Anticipated Enrollment :
40 participants
Intervention Model:
Single Group Assignment
Intervention Model Description:
all patients eligible to receive SGI-110 at day 40 to day130 after transplantation, will be treatedall patients eligible to receive SGI-110 at day 40 to day130 after transplantation, will be treated
None (Open Label)
Primary Purpose:
Official Title:
Guadecitabine SGI-110 and Donor Lymphocyte Infusions (Dli) After Allogeneic Stem Cell Transplantation (Allo Sct) in Very High Risk MDS or AML Patients
Anticipated Study Start Date :
Nov 1, 2018
Anticipated Primary Completion Date :
Sep 1, 2020
Anticipated Study Completion Date :
Mar 1, 2022

Arms and Interventions

Arm Intervention/Treatment
Experimental: SGI-110

SGI 110 (Guadecitabine) will start on day 40, In case the patient is not eligible yet, he should be assessed again each 30 days until day 130, after what, he is not considered eligible for a preventive treatment by SGI. Initial dose will be 30/m2/day SQ for 5 days total 10 cycles of SGI-110

Drug: Guadecitabine
30/m2/day SubCutaneous for 5 days (Cycle = 28 days). total of 10 cycles
Other Names:
  • SGI-110
  • Outcome Measures

    Primary Outcome Measures

    1. DFS [1 year post transplant]

      Disease Free Survival at 1 year post transplant

    Secondary Outcome Measures

    1. Overall survival [1 year and 2 years]

      Overall survival from the date of transplantation and from the date of inclusion

    Eligibility Criteria


    Ages Eligible for Study:
    18 Years to 70 Years
    Sexes Eligible for Study:
    Accepts Healthy Volunteers:
    Inclusion Criteria:
    • Patients aged from 18 to 70 years

    • MDS or AML with unfavorable genetics defines as follow:

    • 4 cytogenetic abnormalities or more or

    • 3 cytogenetic abnormalities and TP53 or

    • 3 cytogenetic abnormalities and monosomal karyotype or

    • Mutations involving EVI1

    • Marrow blast < 20% for and non-proliferative disease

    • AML patients should have received chemotherapy before transplant

    • A donor is available (HLA matched or mismatched)

    • Contraception in women < 50 years and for men at least the first six months after transplant and 3 months after the last dose of guadecitabine"

    Exclusion Criteria:
    • Karnofsky less than 70%

    • Cancer in less than 2 years before inclusion or cancer not in remission the last 2 years before inclusion (except in situ cancer or baso cellular cancer)

    • Cardiac failure with EF < 50%

    • Creatininemia level > 150 µmol/L

    • Liver enzyme > 3 N

    • Conjugated bilirubinemia > 25 µmol/L

    • MDS occurring in a patients with Fanconi anemia or congenital dyskeratosis

    • Proliferative disease in patients no in remission: WBC> 15 G/L or use of continuous cytotoxic to maintain WBC < 15G/L

    • Proliferative AML: hyperleucocytosis > 15 G/L, blast count higher than 10% or lower than 10% for less than 6 weeks

    • No contraception

    • Pregnant women or breastfeeding women

    Contacts and Locations


    Site City State Country Postal Code
    1 CHU d'Angers Angers France 49933
    2 CHU Estaing Clermont-Ferrand France 63000
    3 Hôpital St Vincent de Paul Lille France 59020
    4 CHU Nantes Nantes France 44093
    5 Hôpital Archet 1 Nice France 06200
    6 Hôpital St Louis Paris France 75010
    7 Hôpital Pitié-Salpêtrière Paris France 75013
    8 Hôpital Necker Paris France 75743
    9 CHU de Haut-Lévèque Pessac France 33604
    10 Centre Hospitalier Lyon-Sud Pierre-Bénite France 69495
    11 CHU Toulouse - IUCT Oncopole Toulouse France 31059
    12 CHU Brabois Vandœuvre-lès-Nancy France 54511

    Sponsors and Collaborators

    • Groupe Francophone des Myelodysplasies


    • Principal Investigator: Marie Robin, MD, Hôpital Saint Louis

    Study Documents (Full-Text)

    None provided.

    More Information


    None provided.
    Responsible Party:
    Groupe Francophone des Myelodysplasies Identifier:
    Other Study ID Numbers:
    First Posted:
    Mar 6, 2018
    Last Update Posted:
    Nov 15, 2018
    Last Verified:
    Feb 1, 2018
    Individual Participant Data (IPD) Sharing Statement:
    Plan to Share IPD:
    Studies a U.S. FDA-regulated Drug Product:
    Studies a U.S. FDA-regulated Device Product:
    Additional relevant MeSH terms:

    Study Results

    No Results Posted as of Nov 15, 2018