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JOURNAL ONKOLOGIE – STUDIE

Venetoclax in Addition to Sequential Conditioning With Fludarabine / Amsacrine / Ara-C (FLAMSA) + Treosulfan for Allogeneic Blood Stem Cell Transplantation in Patients With MDS, CMML or sAML

Rekrutierend

NCT-Nummer:
NCT05807932

Studienbeginn:
Juni 2023

Letztes Update:
01.05.2024

Wirkstoff:
Venetoclax, Amsacrine, Ara-C, Tacrolimus, Mycophenolate mofetil

Indikation (Clinical Trials):
Leukemia, Leukemia, Myelomonocytic, Chronic, Leukemia, Myelomonocytic, Juvenile, Myelodysplastic Syndromes

Geschlecht:
Alle

Altersgruppe:
Erwachsene (18+)

Phase:
-

Sponsor:
Heinrich-Heine University, Duesseldorf

Collaborator:
Koordinierungszentrum für Klinische Studien - Duesseldorf

Studienleiter

Guido Kobbe, Prof. Dr.
Principal Investigator
Coordinating Investigator

Kontakt

Guido Kobbe, Prof. Dr.
Kontakt:
Phone: +492118116
Phone (ext.): 826
E-Mail: kobbe@med.uni-duesseldorf.de» Kontaktdaten anzeigen

Studienlocations
(3 von 6)

Universitätsklinikum Düsseldorf - Klinik für Hämatologie, Onkologie und Klinische Immunologie
40225 Düsseldorf
(Nordrhein-Westfalen)
GermanyRekrutierend» Google-Maps
Ansprechpartner:
Guido Kobbe, Prof. Dr.
E-Mail: kobbe@med.uni-duesseldorf.de» Ansprechpartner anzeigen
Alle anzeigen

Studien-Informationen

Brief Summary:

This trial aims to find the MTD of Venetoclax when added to Fludarabin, Amsacrine and Ara-C +

Treosulfan and to evaluate whether the addition of Venetoclax to sequential conditioning with

FLAMSA + Treosulfan is safe for allogeneic blood stem cell transplantation in patients with

high-risk MDS, CMML or sAML (FLAMSAClax)

Ein-/Ausschlusskriterien

Inclusion Criteria:

- Subjects must voluntarily sign and date an informed consent, approved by an

independent ethics committee (IEC), prior to the initiation of any study-specific

procedures

- MDS, CMML or sAML according to WHO classification (revised version 2016) with a marrow

blast count >5% and/or high-risk genetic features (e.g. bad risk karyotype according

to the IPSS-R / ELN classification or presence of unfavorable somatic mutations (e.g.

TP53, RUNX1, IDH1, IDH2, KMT2A, DEK-NUP214 or RAS pathway mutations including NRAS,

KRAS, PTPN11, CBL, NF1, RIT1 or KIT), falling into the "high" or "very high" risk

category of the IPSS-R or IPSS-M) any time between diagnosis and inclusion

- Untreated except for oral Hydroxyurea or a maximum of 2 courses of treatment with

Azacytidine or Decitabine alone or in combination with Venetoclax

- Identification of a well matched (10 out of 10, A, B, C, DR, DQ) donor either related

or unrelated

- Age ≥18

- HCT-CI ≤ 3 (except former treatment of a solid tumor)

- ECOG performance status ≤ 2 at study entry

- no active, uncontrolled infection at inclusion

- able to adhere to the study visit schedule and other protocol requirements

- Female of childbearing potential (FCBP) must:

- Understand that based on embryo-foetal toxicity studies in animals venetoclax may

harm the foetus when administered to pregnant woman

- Agree to have a medically supervised pregnancy test at Screening and within 72

hours prior treatment start

- Avoid becoming pregnant while receiving Venetoclax

- Use effective contraception during treatment with Venetoclax and for at least 1

months after the last dose,

- Understand that is currently unknown whether venetoclax may reduce the

effectiveness of hormonal contraceptives, and therefore women using hormonal

contraceptives should add a barrier method

- Notify her study doctor immediately if there is a risk of pregnancy

- Males must:

- agree to use condoms, even if the male subject has undergone a successful

vasectomy, from Study Day 1 through at least 30 days after the last dose of study

drug.

- Agree to notify the investigator immediately, if pregnancy or a positive

pregnancy test occurs in his partner during study participation

Exclusion Criteria:

- sAML with known FLT3 mutation (ITD or TKD)

- Marrow blast count >30% at the time of screening

- Peripheral white blood count >20,000 per microliter despite treatment with Hydroxyurea

- previous cytotoxic therapy exceeding oral Hydroxyurea or >2 courses of treatment with

Azacytidine, Decitabine or low dose Ara-C alone or in combination with Venetoclax

- previous allogeneic blood stem cell transplantation

- symptomatic CNS-involvement with MDS; CMML or sAML

- any serious medical condition, laboratory abnormality, or psychiatric illness that

would prevent the subject from signing the informed consent form

- pregnant or lactating females

- Refusal to use safe contraceptive methods during the study period

- Cardiac history of CHF (>NYHA 2) requiring treatment or Ejection Fraction < 40% or

chronic stable angina

- Forced expiratory volume in 1 second (FEV1) <50% of expected corrected for hemoglobin

and/or volume

- Diffusing capacity of the lungs for carbon monoxide (DLCO) <50% of expected corrected

for hemoglobin and/or volume

- any condition, including the presence of laboratory abnormalities, which places the

subject at unacceptable risk if he/she were to participate in the study or confounds

the ability to interpret data from the study:

- Impaired renal function (GFR < 45 ml/min)

- Impaired hepatic function, as follows Aspartate aminotransferase (AST) ≥3 x ULN

or Alanine aminotransferase (ALT) ≥3 x ULN or Total bilirubin ≥1.5 x ULN (unless

bilirubin rise is due to Gilbert's syndrome or of non-hepatic origin) or Alkaline

Phosphatase ≥3 x ULN

- known hypersensitivity to Venetoclax, Fludarabine, Amsacrine, Ara-C or Treosulfan

- concurrent use of other anti-cancer agents or treatments except Hydroxyurea and a

maximum of 2 courses of Azacytidine or Decitabine

- positive for HIV or replicating infectious hepatitis, type A, B, C or E

- prior history of malignancy other than MDS, CMML, sAML (except basal cell or squamous

cell carcinoma or carcinoma in situ of the cervix or breast) unless the subject has

been free of disease for ≥ 2 years

- participation in another study with ongoing use of unlicensed investigational product

from 28 days or <5 half-lifes of the investigational product before study enrollment

- No planned or executed/given treatment with any of the following within 7 days prior

to the first dose of study drug (or ramp-up prophase):

- Steroid therapy for anti-neoplastic intent

- moderate or strong cytochrome P450 3A (CYP3A) inhibitors

- moderate or strong CYP3A inducers

- Refusal to avoid consumption of any of the following within 3 days prior to the first

dose of study drug: grapefruit or grapefruit products, Seville oranges (including

marmalade containing Seville oranges), star fruit.

- Persons with any kind of dependency on the investigator or employed by the sponsor or

investigator

- Persons held in an institution by legal or official order

Studien-Rationale

Primary outcome:

1. The primary target variable is safety, defined as the maximal organ toxicity to each organ system according to CTC criteria as well as the number of AEs of grade III or greater within the first 30 days (± 3) after transplantation (Time Frame - inclusion until day 30 (± 3) after transplantation):
maximal organ toxicity to each organ system according to CTC criteria as well as the number of AEs of grade III or greater within the first 30 days (± 3) after transplantation



Secondary outcome:

1. Safety, defined as the maximal organ toxicity to each organ system according to CTC criteria as well as the number of AEs of grade III or greater until day +100 (± 7) after transplantation (Time Frame - inclusion until day +100 (± 7) after transplantation):
maximal organ toxicity to each organ system according to CTC criteria as well as the number of AEs of grade III or greater until day +100 (± 7) after transplantation

2. Graft failure at day +30 (± 3) after transplantation (Time Frame - transplantation until day +30 (± 3) after transplantation):
Number of patients with graft failure (no donor chimerism at day +30 (± 3) after transplantation)

3. Incidence of aGvHD during the first 2 years after transplantation (Time Frame - transplantation until 2 years after transplantation):
Incidence of aGvHD during the first 2 years after transplantation

4. Course of aGvHD during the first 2 years after transplantation (Time Frame - transplantation until 2 years after transplantation):
Course of aGvHD during the first 2 years after transplantation (response/no response to steroids)

5. Severity of aGvHD during the first 2 years after transplantation (Time Frame - transplantation until 2 years after transplantation):
Severity of aGvHD during the first 2 years after transplantation (according to Glucksberg criteria)

6. Incidence of cGvHD during the first 2 years after transplantation (Time Frame - transplantation until 2 years after transplantation):
Incidence of cGvHD during the first 2 years after transplantation

7. Course of cGvHD during the first 2 years after transplantation (Time Frame - transplantation until 2 years after transplantation):
Course of cGvHD during the first 2 years after transplantation (response/no response to steroids)

8. Severity of cGvHD during the first 2 years after transplantation (Time Frame - transplantation until 2 years after transplantation):
Severity of cGvHD during the first 2 years after transplantation (according to NIH criteria)

9. Incidence, course and severity of VOD (Time Frame - transplantation until 2 years after transplantation):
Incidence, course and severity of VOD (according to EBMT criteria)

10. Time to hematopoietic reconstitution (Time Frame - From date of transplantation (day 0) until the date of first documented hematopoietic reconstitution, assessed up to day 100):
Time (days from day 0) to hematopoietic reconstitution (ANC>500/µl, PLT>20000/µl and PLT>50000/µl)

11. Time to transfusion independence (Time Frame - From date of transplantation (day 0) until the date of first documented transfusion independence, assessed up to day 100):
Time (days from day 0) to transfusion independence

12. Best disease response within the first 100 days (± 7) after transplantation (Time Frame - Transplantation to day 100 (± 7) after transplantation):
Best disease response within the first 100 days (± 7) after transplantation (according to IWG-criteria for MDS and ELN-criteria for AML)

13. Disease response and donor chimerism at day +30 (± 3), +60 (± 7) and +100 (± 7) after transplantation (Time Frame - Transplantation until days +30 (± 3), +60 (± 7) and +100 (± 7) after transplantation):
Disease response and donor chimerism at day +30 (± 3), +60 (± 7) and +100 (± 7) after transplantation (according to IWG-criteria for MDS and ELN-criteria for AML)

14. Time to complete donor chimerism in blood and marrow (Time Frame - From date of transplantation (day 0) until the date of first documented donor chimerism in blood and marrow, assessed up to day 100):
Time (days from day 0) to complete donor chimerism in blood and marrow

15. Disappearance of molecular markers of disease (Time Frame - From date of transplantation (day 0) until the date of first documented disappearance of individual molecular marker, assessed through study completion, an average of 2 years):
Disappearance of individual molecular markers of disease (time in days from day 0)

16. Event-free survival (Time Frame - inclusion until 2 years after transplantation):
Event-free survival (death,relapse and disease progression will be recorded as event)

17. Cumulative incidence of relapse (Time Frame - inclusion until 2 years after transplantation):
Cumulative incidence of relapse (disease progression and relapse will be recorded as event)

18. Overall survival (Time Frame - inclusion until 2 years after transplantation):
Overall survival (OS, death will be recorded as event)

Geprüfte Regime

  • Venetoclax:
    Study treatment consists of the conditioning therapy including 6 or 8 days of Venetoclax treatment.
  • Amsacrine:
    Amsacrine is part of the conditioning therapy and is administered on day -10 to -7 before allogeneic blood stem cell transplantation
  • Ara-C:
    Ara-C is part of the conditioning therapy and is administered on day -10 to -7 before allogeneic blood stem cell transplantation
  • Tacrolimus:
    Tacrolimus is used for prophylaxis of acute and chronic graft-versus-host-disease according to institutional standards.
  • Mycophenolate Mofetil:
    Mycophenolate Mofetil is used for prophylaxis of acute and chronic graft-versus-host-disease according to institutional standards.

Quelle: ClinicalTrials.gov


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