Trial evaluating the safety and efficacy of Venetoclax in addition to a standard conditioning regime in patients with certain forms of leukemia undergoing allogeneic blood stem cell transplantation

2024-514688-24-00 Protocol FLAMSAClax Phase I and Phase II (Integrated) - Other Ongoing, recruiting

Start 26 May 2023 · Status Ongoing, recruiting · 1 EU/EEA countries · 6 sites · Protocol FLAMSAClax

Overview

Sponsor-declared trial summary

Phase Phase I and Phase II (Integrated) - Other
Status Ongoing, recruiting
Participants planned 38
Countries 1
Sites 6

Patients with myelodysplastic syndrome (MDS), chronic myelomonocytic leukemia (CMML) or secondary acute myeloid leukemia (sAML) before stem cell transplantation

To find the MTD of Venetoclax when added to Fludarabin, Amsacrine and Ara-C + Treosulfan and evaluate , whether the addition of Venetoclax to sequential conditioning with Fludarabine + Amsacrine + Ara-C (FLAMSA) + Treosulfan for allogeneic blood stem cell transplantation in patients with high-risk MDS, CMML or sAML (FL…

Key facts

Sponsor
Heinrich-Heine-Universitaet Duesseldorf
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Hemic and Lymphatic Diseases [C15]
Trial duration
26 May 2023 → ongoing
Decision date (initial)
2024-07-25
Transition trial
Yes
Low-intervention
No
Rare-disease indication
No
Vulnerable population
Yes
Funding sources
AbbVie Deutschland GmbH & Co. KG · Eurocept International B.V. · Medac GmbH

External identifiers

EU CT number
2024-514688-24-00
EudraCT number
2022-002435-66
ClinicalTrials.gov
NCT05807932

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Safety, Efficacy

To find the MTD of Venetoclax when added to Fludarabin, Amsacrine and Ara-C + Treosulfan and evaluate , whether the addition of Venetoclax to sequential conditioning with Fludarabine + Amsacrine + Ara-C (FLAMSA) + Treosulfan for allogeneic blood stem cell transplantation in patients with high-risk MDS, CMML or sAML (FLAMSAClax) is safe

Secondary objectives 3

  1. To assess incidence, course und severity of aGvHD and cGvHD as well as incidence, course and severity of VOD and graft failure, time to hematopoietic reconstitution (ANC>500/μl, PLT>20000/μl and PLT>50000/μl) and time to transfusion independence
  2. To analyse best response within the first 100 days (± 7) after transplantation (according to IWG-criteria for MDS and ELN-criteria for AML) as well as response rates at day +30 (± 3) , +60 (± 7) and +100 (± 7) after transplantation. In detail, time to complete donor chimerism in blood and marrow and disappearance of molecular markers of disease
  3. To evaluate event-free survival, cumulative incidence of relapse and overall survival

Conditions and MedDRA coding

Patients with myelodysplastic syndrome (MDS), chronic myelomonocytic leukemia (CMML) or secondary acute myeloid leukemia (sAML) before stem cell transplantation

VersionLevelCodeTermSystem organ class
20.1 LLT 10024329 Leukemia 10029104

Study design 2 periods

#TitleAllocationBlindingRoles blindedArms
1 Treatment period
Conditioning therapy before allogeneic blood stem cell transplantation (Standard of care with Fludarabine, Amsacrine, Ara-C followed by Treosulfan) including 6 or 8 days of Venetoclax treatment
Not Applicable None
2 Follow-up period
Patients will be followed up for 2 years after allogeneic blood stem cell transplantation to collect data on disease status and survival
Not Applicable None

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 1

  1. MDS, CMML or sAML according to WHO classification (revised version 2016) with a marrow blast count >5% and/or high-risk genetic features (eg. 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.

Exclusion criteria 1

  1. 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

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  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 +30 (± 3) after transplantation

Secondary endpoints 13

  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
  2. graft failure defined as no donor chimerism at day +30 (± 3) after transplantation
  3. incidence, course und severity of aGvHD and cGvHD during the first 2 years after transplantation
  4. incidence, course and severity of VOD
  5. time (days from day 0) to hematopoietic reconstitution (ANC>500/µl, PLT>20000/µl and PLT>50000/µl)
  6. time (days from day 0) to transfusion independence
  7. best disease response within the first 100 days (± 7) after transplantation (according to IWG-criteria for MDS and ELN-criteria for AML)
  8. 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)
  9. time (days from day 0) to complete donor chimerism in blood and marrow
  10. disappearance of molecular markers of disease (yes/no, time in days from day 0 )
  11. event-free survival (EFS, death, relapse and disease progression will be recorded as event)
  12. cumulative incidence of relapse (CIR, disease progression and relapse will be recorded as event)
  13. overall survival (OS, death will be recorded as event)

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 5

Amsacrine

SCP2015642 · ATC

Active substance
Amsacrine
Route of administration
INTRAVENOUS
Authorisation status
Authorised
ATC code
L01XX01 — AMSACRINE
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Mycophenolate Mofetil

SCP139856 · ATC

Active substance
Mycophenolate Mofetil
Route of administration
ORAL
Authorisation status
Authorised
ATC code
L04AA06 — MYCOPHENOLIC ACID
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Tacrolimus

SCP133064 · ATC

Active substance
Tacrolimus
Substance synonyms
TACROLIMUS ANHYDROUS
Route of administration
ORAL
Authorisation status
Authorised
ATC code
L04AD02 — TACROLIMUS
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Venetoclax

PRD2186236 · Product

Active substance
Venetoclax
Pharmaceutical form
FILM-COATED TABLET
Route of administration
ORAL
Authorisation status
Not Authorised
MA holder
ABBVIE DEUTSCHLAND GMBH & CO. KG
Paediatric formulation
No
Orphan designation
No

Cytarabine

SCP142361 · ATC

Active substance
Cytarabine
Substance synonyms
ARA-C, CYTOSINE ARABINOSIDE
Route of administration
INTRAVENOUS
Authorisation status
Authorised
ATC code
L01BC01 — CYTARABINE
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Auxiliary 8

Mycophenolic Acid

SCP172157 · ATC

Active substance
Mycophenolic Acid
Substance synonyms
MYCOPHENOLATE
Route of administration
INFUSION
Authorisation status
Authorised
ATC code
L04AA04 — ANTITHYMOCYTE IMMUNOGLOBULIN (RABBIT)
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Glatiramer Acetate

SCP180112 · ATC

Active substance
Glatiramer Acetate
Substance synonyms
COPOLYMER-1
Route of administration
INJECTION
Authorisation status
Authorised
ATC code
L03AA13 — PEGFILGRASTIM
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Allopurinol

SCP130703 · ATC

Active substance
Allopurinol
Route of administration
ORAL
Authorisation status
Authorised
ATC code
M04AA01 — ALLOPURINOL
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Fludarabine Phosphate

SCP107125968 · ATC

Active substance
Fludarabine Phosphate
Substance synonyms
FLUDARABINE 5'-MONOPHOSPHATE, FLUDARABINE MONOPHOSPHATE
Route of administration
INFUSION
Authorisation status
Authorised
ATC code
L01BB05 — FLUDARABINE
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Rasburicase

SCP8268998 · ATC

Active substance
Rasburicase
Route of administration
INFUSION
Authorisation status
Authorised
ATC code
V03AF07 — RASBURICASE
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Febuxostat Hemihydrate

SCP104873455 · ATC

Active substance
Febuxostat Hemihydrate
Route of administration
ORAL
Authorisation status
Authorised
ATC code
M04AA03 — FEBUXOSTAT
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Treosulfan

SCP2062450 · ATC

Active substance
Treosulfan
Route of administration
INFUSION
Authorisation status
Authorised
ATC code
L01AB02 — TREOSULFAN
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Filgrastim

SCP118777783 · ATC

Active substance
Filgrastim
Substance synonyms
NT100H, FILGRASTIM (GENETICAL RECOMBINATION)
Route of administration
INJECTION
Authorisation status
Authorised
ATC code
L03AA02 — FILGRASTIM
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Heinrich-Heine-Universitaet Duesseldorf

Sponsor organisation
Heinrich-Heine-Universitaet Duesseldorf
Address
Universitaetsstrasse 1, Bilk Bilk
City
Duesseldorf
Postcode
40225
Country
Germany

Scientific contact point

Organisation
Heinrich-Heine-Universitaet Duesseldorf
Contact name
Prof. Guido Kobbe

Public contact point

Organisation
Heinrich-Heine-Universitaet Duesseldorf
Contact name
Prof. Guido Kobbe

Locations

1 EU/EEA country · 6 investigational sites

By country

CountryMS statusPlanned subjectsSites
Germany Ongoing, recruiting 38 6
Rest of world 0

Investigational sites

Germany

6 sites · Ongoing, recruiting
University Hospital Cologne AöR
Klinik I für Innere Medizin, Kerpener Strasse 62, Lindenthal, Cologne
Universitaetsklinikum Duesseldorf AöR
Klinik für Hämatologie, Onkologie und Klinische Immunologie, Moorenstrasse 5, Bilk, Duesseldorf
Universitaetsklinikum Jena KöR
Klinik für Innere Medizin II, Am Klinikum 1, Lobeda, Jena
Klinikum rechts der Isar der TU Muenchen AöR
Klinik und Poliklinik für Innere Medizin III, Ismaninger Strasse 22, Au-Haidhausen, Munich
Universitaetsklinikum Aachen AöR
Klinik für Hämatologie, Onkologie, Hämastaseologie und Stammzelltransplantation, Pauwelsstrasse 30, 52074, Aachen
Universitaetsklinikum Frankfurt AöR
Medizinische Klinik II, Theodor-Stern-Kai 7, 60590, Frankfurt Am Main

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
Germany 2023-05-26 2023-09-13

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 12 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) D1_Protocol 2024-514688-24 V04F 20250415 redacted 4
Recruitment arrangements (for publication) K1_Recruitment arrangements Placeholder 1
Subject information and informed consent form (for publication) L1_SIS and ICF FLAMSAClax 2
Subject information and informed consent form (for publication) L1_SIS and ICF Schwangerschaft Partner FLAMSAClax 2
Subject information and informed consent form (for publication) L1_SIS and ICF Schwangerschaft Partnerin FLAMSAClax 2
Subject information and informed consent form (for publication) L1_SIS and ICF Schwangerschaft Studienteilnehmerin FLAMSAClax 2
Subject information and informed consent form (for publication) L2_Other subject information material Infoschreiben Anderungen 1
Subject information and informed consent form (for publication) L2_Other subject information material Patiententagebuch 400mg 1
Subject information and informed consent form (for publication) L2_Other subject information material Patiententagebuch 400mg Vortherapie 1
Subject information and informed consent form (for publication) L2_Other subject information material Patiententagebuch 800mg 1
Subject information and informed consent form (for publication) L2_Other subject information material Patiententagebuch 800mg Vortherapie 1
Synopsis of the protocol (for publication) D1_Protocol synopsis 2024-514688-24_redacted 4

Application history

5 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2024-07-09 Germany Acceptable
2024-07-24
2024-07-25
2 SUBSTANTIAL MODIFICATION SM-1 2025-04-30 Germany Acceptable
2025-06-02
2025-06-25
3 SUBSTANTIAL MODIFICATION SM-2 2025-08-07 Germany Acceptable
2025-08-27
2025-08-29
4 NON SUBSTANTIAL MODIFICATION NSM-1 2025-10-09 Germany Acceptable
2025-08-27
2025-10-09
5 SUBSTANTIAL MODIFICATION SM-3 2026-04-01 Germany Acceptable
2026-04-27
2026-05-06