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Acute Myeloid Leukemia, AdultPhase 3NCT05674539

Reduced Intensity Conditioning Regimens for Acute Myeloid Leukemia and Myelodysplastic Syndrome

A Phase 3 study testing Fludarabine and Busulfan and Fludarabine and Melphalan in people with Acute Myeloid Leukemia, Adult and Myelodysplastic Syndrome(MDS), run by Union Hospital, Tongji Medical College, Huazhong University of Science and Technology at 1 site in China.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts
Official record
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Trial summary

The goal of this clinical trial is to compare outcomes of two reduced intensity conditioning (RIC) regimens (fludarabine plus busulfan and fludarabine plus melphalan) in allogeneic hematopoietic stem cell transplantation (HSCT) for acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) patients. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Fludarabine and Busulfan and Fludarabine and Melphalan
Could I receive a placebo?
No, everyone receives an active treatment
How many people
200 participants
Where
1 siteChina
Study dates
15 Feb 2023to 30 Dec 2025
Phase
Phase 3
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age equal or more than 18 years old.
  • Patients diagnosed with AML or MDS.
  • Patients who have related or unrelated bone marrow or peripheral blood donors and plan to undergo hematopoietic stem cell transplantation.
  • Hct-specific complication index score (HCT-CI) more than or equal to 3 or the age of Patients ≥55 years.
  • Sign the informed consent, promise to abide by the research procedures, and cooperate with the implementation of the whole process of the research.

Who cannot join

  • Patients with central nervous system involvement.
  • Patients with HIV seropositive.
  • Patients with other serious diseases and a life expectancy of less than six months
  • Patients with severe mental or psychological disorders.
  • Patients without written informed consent.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

China1 site
  • Wuhan Union Hospital, Tongji Medical college, Huazhong University of Science and Technology

    Wuhan, Hubei, 430000

Other trials in China

About this study

Official title: Reduced Intensity Conditioning With Fludarabine and Busulfan Versus Fludarabine and Melphalan Before Allogeneic Stem Cell Transplantation for Acute Myeloid Leukemia and Myelodysplastic Syndrome: A Randomised, Multi-Center, Phase III Study

The goal of this clinical trial is to compare outcomes of two reduced intensity conditioning (RIC) regimens (fludarabine plus busulfan and fludarabine plus melphalan) in allogeneic hematopoietic stem cell transplantation (HSCT) for acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) patients. The main questions it aims to answer are:

  • The safety of two reduced intensity conditioning (RIC) regimens (fludarabine plus busulfan and fludarabine plus melphalan) in allogeneic hematopoietic stem cell transplantation for adult AML/MDS patients with HCT-CI≥3 or aged ≥55 years.
  • The efficacy of two reduced intensity conditioning (RIC) regimens (fludarabine plus busulfan and fludarabine plus melphalan) in allogeneic hematopoietic stem cell transplantation for adult AML/MDS patients with HCT-CI≥3 or aged ≥55 years.

Participants will be randomized to one of two reduced intensity conditioning (RIC) regimens (fludarabine plus busulfan and fludarabine plus melphalan)

Read the detailed description

Patients are randomized to one of two reduced intensity conditioning (RIC) regimens: the combination of fludarabine (30 mg/m^2/day, days -6 to days -2, the total dase is 150 mg/m^2) and busulfan (3.2 mg/kg/day, days -3 to days -2, the total dose is 6.4 mg/kg) (Flu/Bu) or fludarabine (30 mg/m^2/day, days -6 to days -2, the total dose is 150 mg/m^2) and melphalan (70 mg/m^2/day, days -3 to days -2, the total dose is 140 mg/m^2) (Flu/Mel). A total of 200 patients (100 to each arm) will be recruited in this study over a period of two years. Patients will be followed for up to 18 months from allogeneic hematopoietic stem cell transplantation.

Being tested
Fludarabine and Busulfan, Fludarabine and Melphalan
Keywords
hematopoietic stem cell transplantation (HSCT), reduced intensity conditioning (RIC), Acute Myeloid Leukemia(AML), Myelodysplastic Syndrome(MDS)
Medical subject headings
Leukemia, Myeloid, Acute, Myelodysplastic Syndromes

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Fludarabine and BusulfanDrug

    Also called Fludara and Busulfex

    Fludarabine with total dose of 150 mg/m^2 in combination with Busulfan with total dose of 6.4 mg/kg

  • Fludarabine and MelphalanDrug

    Also called Busulfex and Fludara

    Fludarabine with total dose of 150 mg/m^2 in combination with Melphalan with total dose of 140 mg/m^2

Study groups in NCT05674539
Study groupRoleWhat they receive
fludarabine and busulfanActive comparatorfludarabine (30 mg/m^2/day, days -6 to days -2, the total dase is 150 mg/m^2) and busulfan (3.2 mg/kg/day, days -3 to days -2, the total dose is 6.4 mg/kg)
Receives: Drug: Fludarabine and Busulfan
fludarabine and melphalanExperimentalfludarabine (30 mg/m^2/day, days -6 to days -2, the total dose is 150 mg/m^2) and melphalan (70 mg/m^2/day, days -3 to days -2, the total dose is 140 mg/m^2)
Receives: Drug: Fludarabine and Melphalan

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Progression-Free Survival (PFS)

    Survival without relapse or progression of the primary disease. Kaplan-Meier (KM) method was used to estimate median PFS.

    Measured: 18 months post-randomization

Secondary outcomes (5)
  1. Overall Survival (OS)

    Overall survival is defined as survival duration from the date of randomization to the date of death from any cause. Kaplan-Meier (KM) method was used to estimate median OS

    Measured: 18 months post-randomization

  2. Non-Relapse Mortality (NRM)

    Death not due to recurrence or progression of the primary disease. Recurrence was considered as a competing risk event, and the Gray test was used for statistical analysis.

    Measured: 18 months post-randomization

  3. Disease Relapse

    Relapse of the primary disease. Non-relapse mortality (TRM) was considered as a competing risk event, and Gray's test was used for statistical analysis.

    Measured: 18 months post-randomization

  4. Percentage of Participants With Severe Acute Graft-versus-host Disease (GVHD)

    Acute GVHD is graded according to the scoring system proposed by Przepiorka et al.1995:

    Skin stage:

    0: No rash

    Rash <25% of body surface area Rash on 25-50% of body surface area Rash on > 50% of body surface area Generalized erythroderma with bullous formation

    Liver stage (based on bilirubin level)*:

    0: <2 mg/dL

    2-3 mg/dL 3.01-6 mg/dL 6.01-15.0 mg/dL >15 mg/dL

    GI stage*:

    0: No diarrhea or diarrhea <500 mL/day

    Diarrhea 500-999 mL/day or persistent nausea with histologic evidence of GVHD Diarrhea 1000-1499 mL/day Diarrhea >1500 mL/day Severe abdominal pain with or without ileus * If multiple etiologies are listed for liver or GI, the organ system is downstaged by 1.

    GVHD grade:

    0: All organ stages 0 or GVHD not listed as an etiology I: Skin stage 1-2 and liver and GI stage 0 II: Skin stage 3 or liver or GI stage 1 III: Liver stage 2-3 or GI stage 2-4 IV: Skin or liver stage 4

    Measured: Day 100 post-transplant

  5. Percentage of Participants With Chronic GVHD

    Chronic GVHD is classified as the occurrence of mild, moderate, or severe chronic GVHD per 2005 NIH Consensus Criteria (Filipovich et al. 2005)

    Measured: 18 months post-transplant

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Jan 2023
  2. Study start15 Feb 2023
  3. Primary completion30 Dec 2025 (estimated)
  4. Study completion30 Dec 2025 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Participants will be randomized to one of two reduced intensity conditioning (RIC) regimens (fludarabine plus busulfan and fludarabine plus melphalan)
Masking
None (open label)
Enrolment
200 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05674539
Sponsor's protocol ID
WHUH-RIC-HSCT-1115
Status last verified
Oct 2024
First submitted
30 Dec 2022
Last updated
10 Feb 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Scott BL. Allogeneic stem cell transplantation for high-risk acute leukemia and maintenance therapy: no time to waste. Blood Adv. 2020 Jul 14;4(13):3200-3204. doi: 10.1182/bloodadvances.2019000388.

    PubMed 32663296
  • Sophie S, Yves B, Frederic B. Current Status and Perspectives of Allogeneic Hematopoietic Stem Cell Transplantation in Elderly Patients with Acute Myeloid Leukemia. Stem Cells Transl Med. 2022 May 27;11(5):461-477. doi: 10.1093/stcltm/szac015.

    PubMed 35438781
  • Aoudjhane M, Labopin M, Gorin NC, Shimoni A, Ruutu T, Kolb HJ, Frassoni F, Boiron JM, Yin JL, Finke J, Shouten H, Blaise D, Falda M, Fauser AA, Esteve J, Polge E, Slavin S, Niederwieser D, Nagler A, Rocha V; Acute Leukemia Working Party (ALWP) of the European group for Blood and Marrow Transplantation (EBMT). Comparative outcome of reduced intensity and myeloablative conditioning regimen in HLA identical sibling allogeneic haematopoietic stem cell transplantation for patients older than 50 years of age with acute myeloblastic leukaemia: a retrospective survey from the Acute Leukemia Working Party (ALWP) of the European group for Blood and Marrow Transplantation (EBMT). Leukemia. 2005 Dec;19(12):2304-12. doi: 10.1038/sj.leu.2403967.

    PubMed 16193083
  • Craddock C, Jackson A, Loke J, Siddique S, Hodgkinson A, Mason J, Andrew G, Nagra S, Malladi R, Peniket A, Gilleece M, Salim R, Tholouli E, Potter V, Crawley C, Wheatley K, Protheroe R, Vyas P, Hunter A, Parker A, Wilson K, Pavlu J, Byrne J, Dillon R, Khan N, McCarthy N, Freeman SD. Augmented Reduced-Intensity Regimen Does Not Improve Postallogeneic Transplant Outcomes in Acute Myeloid Leukemia. J Clin Oncol. 2021 Mar 1;39(7):768-778. doi: 10.1200/JCO.20.02308. Epub 2020 Dec 29.

    PubMed 33373276
  • Luger SM, Ringden O, Zhang MJ, Perez WS, Bishop MR, Bornhauser M, Bredeson CN, Cairo MS, Copelan EA, Gale RP, Giralt SA, Gulbas Z, Gupta V, Hale GA, Lazarus HM, Lewis VA, Lill MC, McCarthy PL, Weisdorf DJ, Pulsipher MA. Similar outcomes using myeloablative vs reduced-intensity allogeneic transplant preparative regimens for AML or MDS. Bone Marrow Transplant. 2012 Feb;47(2):203-11. doi: 10.1038/bmt.2011.69. Epub 2011 Mar 28.

    PubMed 21441963
  • Lioure B, Bene MC, Pigneux A, Huynh A, Chevallier P, Fegueux N, Blaise D, Witz B, Delain M, Cornillon J, Luquet I, Blanchet O, Cornillet-Lefebvre P, Carre M, Hunault M, Larosa F, Lamy T, Randriamalala E, Ojeda-Uribe M, Berthou C, Fornecker L, Harousseau JL, Bouscary D, Ifrah N, Cahn JY; GOELAMS. Early matched sibling hematopoietic cell transplantation for adult AML in first remission using an age-adapted strategy: long-term results of a prospective GOELAMS study. Blood. 2012 Mar 22;119(12):2943-8. doi: 10.1182/blood-2011-05-352989. Epub 2012 Feb 9.

    PubMed 22323482
  • Bornhauser M, Kienast J, Trenschel R, Burchert A, Hegenbart U, Stadler M, Baurmann H, Schafer-Eckart K, Holler E, Kroger N, Schmid C, Einsele H, Kiehl MG, Hiddemann W, Schwerdtfeger R, Buchholz S, Dreger P, Neubauer A, Berdel WE, Ehninger G, Beelen DW, Schetelig J, Stelljes M. Reduced-intensity conditioning versus standard conditioning before allogeneic haemopoietic cell transplantation in patients with acute myeloid leukaemia in first complete remission: a prospective, open-label randomised phase 3 trial. Lancet Oncol. 2012 Oct;13(10):1035-44. doi: 10.1016/S1470-2045(12)70349-2. Epub 2012 Sep 7.

    PubMed 22959335
  • Liu H, Zhai X, Song Z, Sun J, Xiao Y, Nie D, Zhang Y, Huang F, Zhou H, Fan Z, Tu S, Li Y, Guo X, Yu G, Liu Q. Busulfan plus fludarabine as a myeloablative conditioning regimen compared with busulfan plus cyclophosphamide for acute myeloid leukemia in first complete remission undergoing allogeneic hematopoietic stem cell transplantation: a prospective and multicenter study. J Hematol Oncol. 2013 Feb 8;6:15. doi: 10.1186/1756-8722-6-15.

    PubMed 23394705
  • Scott BL, Pasquini MC, Logan BR, Wu J, Devine SM, Porter DL, Maziarz RT, Warlick ED, Fernandez HF, Alyea EP, Hamadani M, Bashey A, Giralt S, Geller NL, Leifer E, Le-Rademacher J, Mendizabal AM, Horowitz MM, Deeg HJ, Horwitz ME. Myeloablative Versus Reduced-Intensity Hematopoietic Cell Transplantation for Acute Myeloid Leukemia and Myelodysplastic Syndromes. J Clin Oncol. 2017 Apr 10;35(11):1154-1161. doi: 10.1200/JCO.2016.70.7091. Epub 2017 Feb 13.

    PubMed 28380315
  • Shimoni A, Hardan I, Shem-Tov N, Rand A, Herscovici C, Yerushalmi R, Nagler A. Comparison between two fludarabine-based reduced-intensity conditioning regimens before allogeneic hematopoietic stem-cell transplantation: fludarabine/melphalan is associated with higher incidence of acute graft-versus-host disease and non-relapse mortality and lower incidence of relapse than fludarabine/busulfan. Leukemia. 2007 Oct;21(10):2109-16. doi: 10.1038/sj.leu.2404886. Epub 2007 Aug 9.

    PubMed 17690701
  • DiMaggio E, Zhou JM, Caddell R, Tombleson R, Perkins J, Anasetti C, Khimani F, Pidala J, Nishihori T, Perez L, Betts B, Fernandez HF, Mishra A. Reduced-intensity fludarabine/melphalan confers similar survival to busulfan/fludarabine myeloablative regimens for patients with acute myeloid leukemia and myelodysplasia. Leuk Lymphoma. 2020 Jul;61(7):1678-1687. doi: 10.1080/10428194.2020.1731498. Epub 2020 Mar 5.

    PubMed 32133897
  • Veltri L, Rezvani K, Oran B, Mehta R, Rondon G, Kebriaei P, Popat U, Nieto Y, Hosing C, Qazilbash M, Khouri I, Shpall E, Champlin R, Marin D. Allotransplants for Patients 65 Years or Older with High-Risk Acute Myeloid Leukemia. Biol Blood Marrow Transplant. 2019 Mar;25(3):505-514. doi: 10.1016/j.bbmt.2018.09.032. Epub 2018 Oct 9.

    PubMed 30308325
  • Baron F, Labopin M, Peniket A, Jindra P, Afanasyev B, Sanz MA, Deconinck E, Nagler A, Mohty M. Reduced-intensity conditioning with fludarabine and busulfan versus fludarabine and melphalan for patients with acute myeloid leukemia: a report from the Acute Leukemia Working Party of the European Group for Blood and Marrow Transplantation. Cancer. 2015 Apr 1;121(7):1048-55. doi: 10.1002/cncr.29163. Epub 2014 Nov 25.

    PubMed 25424330
  • Damlaj M, Alkhateeb HB, Hefazi M, Partain DK, Hashmi S, Gastineau DA, Al-Kali A, Wolf RC, Gangat N, Litzow MR, Hogan WJ, Patnaik MM. Fludarabine-Busulfan Reduced-Intensity Conditioning in Comparison with Fludarabine-Melphalan Is Associated with Increased Relapse Risk In Spite of Pharmacokinetic Dosing. Biol Blood Marrow Transplant. 2016 Aug;22(8):1431-1439. doi: 10.1016/j.bbmt.2016.04.026. Epub 2016 May 7.

    PubMed 27164061
  • Zhou Z, Nath R, Cerny J, Wang HL, Zhang MJ, Abdel-Azim H, Agrawal V, Ahmed G, Al-Homsi AS, Aljurf M, Alkhateeb HB, Assal A, Bacher U, Bajel A, Bashir Q, Battiwalla M, Bhatt VR, Byrne M, Cahn JY, Cairo M, Choe H, Copelan E, Cutler C, Damlaj MB, DeFilipp Z, De Lima M, Diaz MA, Farhadfar N, Foran J, Freytes CO, Gerds AT, Gergis U, Grunwald MR, Gul Z, Hamadani M, Hashmi S, Hertzberg M, Hildebrandt GC, Hossain N, Inamoto Y, Isola L, Jain T, Kamble RT, Khan MW, Kharfan-Dabaja MA, Kebriaei P, Kekre N, Khera N, Lazarus HM, Liesveld JL, Litzow M, Liu H, Marks DI, Martino R, Mathews V, Mishra A, Murthy HS, Nagler A, Nakamura R, Nathan S, Nishihori T, Olin R, Olsson RF, Palmisiano N, Patel SS, Patnaik MM, Pawarode A, Perales MA, Politikos I, Popat U, Rizzieri D, Sandmaier BM, Savani BN, Seo S, Shah NN, Uy GL, Valcarcel D, Verdonck LF, Waller EK, Wang Y, Weisdorf D, Wirk B, Wong E, Yared JA, Saber W. Reduced intensity conditioning for acute myeloid leukemia using melphalan- vs busulfan-based regimens: a CIBMTR report. Blood Adv. 2020 Jul 14;4(13):3180-3190. doi: 10.1182/bloodadvances.2019001266.

    PubMed 32663298

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Fludarabine and Busulfan and Fludarabine and Melphalan in people with Acute Myeloid Leukemia, Adult and Myelodysplastic Syndrome(MDS), run by Union Hospital, Tongji Medical College, Huazhong University of Science and Technology at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: enrolling by invitation, as of the sponsor's last update on 10 Feb 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Progression-Free Survival (PFS) (time frame: 18 months post-randomization). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05674539, which also lists 15 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Feb 2025; AzTrials last refreshed its copy on 26 Oct 2026.

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