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Acute Myeloid LeukemiaPhase 2NCT02686593

Clofarabine, Cytarabine and Mitoxantrone (CLAM) for Relapsed or Refractory AML

A Phase 2 study testing Clofarabine, AraC, mitoxantrone (CLAM) in people with Acute Myeloid Leukemia, run by The University of Hong Kong at 1 site in Hong Kong.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The study aims to evaluate the efficacy of the regimen CLAM in relapsed or refractory AML when used as first salvage for patients to relapse or fail after standard treatment with daunorubicin/cytarabine induction. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Acute Myeloid Leukemia
What is being tested?
Clofarabine, AraC, mitoxantrone (CLAM)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
50 participants
Where
1 siteHong Kong
Study dates
1 Feb 2016to 1 May 2018
Phase
Phase 2
Are there results?
None posted in the registry

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 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Relapsed or refractory acute myeloid leukemia (AML) after one first-line chemotherapy regimen
  • Patients aged 18 - 65 inclusively
  • European Cooperative Oncology Group (ECOG) performance status of less than 2

Who cannot join

  • Patients aged less than 18 or above 65
  • ECOG performance status of 2 or more
  • Acute promyelocytic leukaemia
  • Uncontrolled active infection
  • Uncontrolled arrhythmia
  • Altered renal dysfunction with serum creatinine > 1.5 x ULN and/or creatinine clearance < 50 mL/min
Show all 12Show fewer
  • Significant neurologic (grade > 2) or psychiatric disorder, dementia or seizures
  • Clinical symptoms suggesting active central nervous system leukemia
  • Severe complications of leukemia such as uncontrolled bleeding, pneumonia with hypoxia or shock or disseminated intravascular coagulation
  • Patients with known HIV, Hepatitis B or C infection or history of cirrhosis
  • Patients Significant hepatic dysfunction: Direct bilirubin > 1.5 x upper limit of normal (ULN) for age; ALT or AST > 3 x upper limit of normal (ULN) for age; Lipase > 2.0 x upper limit of normal (ULN) for age
  • Females of childbearing potential must have a negative pregnancy test

Trial locations and contacts

1 site in 1 country.

Hong Kong1 site
  • The University of Hong Kong

    Hong Kong

Other trials in Hong Kong

About this study

The study aims to evaluate the efficacy of the regimen CLAM in relapsed or refractory AML when used as first salvage for patients to relapse or fail after standard treatment with daunorubicin/cytarabine induction.

Read the detailed description

Clofarabine, a second generation purine nucleoside analog, has been evaluated in several studies in relapsed AML.[1-3] Safety and dosages of clorafabine have already been determined in previous phase I/II studies. A demonstrable complete remission rate of up to 40% to 50% was shown in relapsed or refractory AML.[4-6] Since 2009, Clofarabine (40mg/m2/day for 5 days) in combination with high-dose cytarabine (2g/m2/day for 5 days) (CLARA) was adopted as the re-induction protocol for relapsed or refractory patients with AML at the Department of Medicine, Queen Mary Hospital. We have shown that this protocol is safe, tolerable and effective for relapsed AML. A recent updated analysis (Gill H et al., unpublished) showed a completed response rate of 50.8%. With the CLARA regimen, all patients (N=60) developed grade 3/4 neutropenia and thrombocytopenia. 8% developed grade 3/4 hepatotoxicity and 40% developed febrile neutropenia with clinical sepsis. There is increasing evidence to show that clofarabine is safe and efficacious when combined with the anthracyclines idarubicin or daunorubicin.7,8 In this prospective study, we combine clofarabine and cytarabine (Ara-C) with the topoisomerase II inhibitor mitoxantrone. In this protocol, the dosages of clofarabine and cytarabine will be reduced to 30mg/m2/day and 750mg/m2/day respectively, comparable to most clinical trials. In our previous publication of experience with the use of CLARA by Tse et al and Leung et al, clofarabine at 40mg/m2/day for 5 days was combined with high-dose cytarabine at 2g/m2/day.[5,6] The regimen was shown to be safe. The combination of clofarabine with anthracyclines has been evaluated. Mathiesen at al evaluated the CIA regimen comprising clofarabine at 20mg/m2/day from day 1 to day 5, idarubicin at 10mg/m2/day from day 1 to day 3 and cytarabine at 1g/m2/day from day 1 to day 5.[7] Abbie et al investigated the regimen comprising Clofarabine at 20mg/m2/day or 25mg/m2/day for 5 days in combination with mitoxantrone and etoposide.7 Based on the clinical trials and our extensive experience with the use of CLARA, the dosages of clofarabine in CLAM was determined. With the significant reduction in the dose of cytarabine to 750mg/m2/day for 5 days in CLAM, the dose of clofarabine was chosen at 30mg/m2/day for 5 days with the aim to maintain the efficacy seen with CLARA. The aim of this combination is to maintain or improve treatment efficacy seen with a lower treatment-related toxicity via dose reduction of clofarabine and cytarabine compared to CLARA. CLAM is expected to be safe and tolerable especially when used as first salvage in patient with a ECOG performance status of 0 or 1. The regimen CLAM has been approved by the institutional review board of Queen Mary Hospital/University of Hong Kong. In a pilot study, 4 patients used the regimen. 2 patients achieved a complete remission. Cardiotoxicity was not seen. Grade 3/4 hepatotoxicity was not seen. There were no treatment-related mortality observed. CLAM was shown to be safe and with manageable toxicity profile. In addition, less myeloid toxicity is expected during consolidation as patients who achieve a remission will have better marrow reserve when compared to those at relapse. Patients will have their cardiac, liver and renal function and performance status evaluated continuously and patients with cardiac dysfunction, significantly impaired renal or liver function and ECOG performance status of 2 or above will be excluded. Thus consolidation with the same dose as with induction is expected to be safe and tolerable.

The study aims to evaluate the efficacy of the regimen CLAM in relapsed or refractory AML when used as first salvage for patients to relapse or fail after standard treatment with daunorubicin/cytarabine induction. We aim to improve treatment efficacy at a more tolerable dose of clofarabine and cytarabine compared to CLARA.

Being tested
Clofarabine, AraC, mitoxantrone (CLAM)
Keywords
Clofarabine, Acute Myeloid Leukemia
Medical subject headings
Leukemia, Myeloid, Acute

What participants receive

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

  • Clofarabine, AraC, mitoxantrone (CLAM)Drug

    Also called CLAM

    The combination of clofarabine, cytarabine (Ara-C) and mitoxantrone will be used in patients with AML in first relapse or after failure of first salvage

Study groups in NCT02686593
Study groupRoleWhat they receive
Clofarabine, AraC, mitoxantrone (CLAM)OtherThis is the single arm with the intervention using Clofarabine, AraC, Mitoxantrone
Receives: Drug: Clofarabine, AraC, mitoxantrone (CLAM)

What is being measured

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

  1. Response rate

    Remission status will be assessed on day 28 of treatment for the assessment of response rate using standard criteria

    Measured: Day 28

Secondary outcomes (3)
  1. Leukemia-free survival

    This is defined as time (in months) from remission after CLAM regimen to relapse (event), death (censor), HSCT (censor) or latest follow-up (censor).

    Measured: 2 years

  2. Overall survival

    This is defined as the time (in months) from recruitment to death (event) or latest follow-up (censor).

    Measured: 5 years

  3. Adverse events

    Toxicity will be defined using the NCI Common Terminology Criteria for Adverse Events (CTCAE). Data on all toxicities listed will be recorded.

    Measured: 1 year

Timeline

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

  1. First posted19 Feb 2016 (estimated)
  2. Study start1 Feb 2016
  3. Primary completion31 Mar 2018
  4. Study completion1 May 2018

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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
50 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02686593
Sponsor's protocol ID
CLOFAL07200
Status last verified
May 2018
First submitted
15 Feb 2016
Last updated
6 Oct 2022
Results posted
No
Data monitoring committee
Yes
Individual data sharing
No

Publications

  • Faderl S, Gandhi V, Kantarjian HM. Potential role of novel nucleoside analogs in the treatment of acute myeloid leukemia. Curr Opin Hematol. 2008 Mar;15(2):101-7. doi: 10.1097/MOH.0b013e3282f46e94.

    PubMed 18300755
  • Faderl S, Ferrajoli A, Wierda W, Huang X, Verstovsek S, Ravandi F, Estrov Z, Borthakur G, Kwari M, Kantarjian HM. Clofarabine combinations as acute myeloid leukemia salvage therapy. Cancer. 2008 Oct 15;113(8):2090-6. doi: 10.1002/cncr.23816.

    PubMed 18756533
  • Sampat K, Kantarjian H, Borthakur G. Clofarabine: emerging role in leukemias. Expert Opin Investig Drugs. 2009 Oct;18(10):1559-64. doi: 10.1517/13543780903173222.

    PubMed 19715446
  • Becker PS, Kantarjian HM, Appelbaum FR, Petersdorf SH, Storer B, Pierce S, Shan J, Hendrie PC, Pagel JM, Shustov AR, Stirewalt DL, Faderl S, Harrington E, Estey EH. Clofarabine with high dose cytarabine and granulocyte colony-stimulating factor (G-CSF) priming for relapsed and refractory acute myeloid leukaemia. Br J Haematol. 2011 Oct;155(2):182-9. doi: 10.1111/j.1365-2141.2011.08831.x. Epub 2011 Aug 18.

    PubMed 21848522
  • Tse E, Leung AY, Sim J, Lee HK, Liu HS, Yip SF, Kwong YL. Clofarabine and high-dose cytosine arabinoside in the treatment of refractory or relapsed acute myeloid leukaemia. Ann Hematol. 2011 Nov;90(11):1277-81. doi: 10.1007/s00277-011-1223-2. Epub 2011 Apr 1.

    PubMed 21455604
  • Leung AY, Tse E, Hwang YY, Chan TS, Gill H, Chim CS, Lie AK, Kwong YL. Primary treatment of leukemia relapses after allogeneic hematopoietic stem cell transplantation with reduced-intensity conditioning second transplantation from the original donor. Am J Hematol. 2013 Jun;88(6):485-91. doi: 10.1002/ajh.23439. Epub 2013 May 2.

    PubMed 23512868
  • Nazha A, Kantarjian H, Ravandi F, Huang X, Choi S, Garcia-Manero G, Jabbour E, Borthakur G, Kadia T, Konopleva M, Cortes J, Ferrajoli A, Kornblau S, Daver N, Pemmaraju N, Andreeff M, Estrov Z, Du M, Brandt M, Faderl S. Clofarabine, idarubicin, and cytarabine (CIA) as frontline therapy for patients </=60 years with newly diagnosed acute myeloid leukemia. Am J Hematol. 2013 Nov;88(11):961-6. doi: 10.1002/ajh.23544. Epub 2013 Sep 9.

    PubMed 23877926
  • Vigil CE, Tan W, Deeb G, Sait SN, Block AW, Starostik P, Griffiths EA, Thompson JE, Greene JD, Ford LA, Wang ES, Wetzler M. Phase II trial of clofarabine and daunorubicin as induction therapy for acute myeloid leukemia patients greater than or equal to 60 years of age. Leuk Res. 2013 Nov;37(11):1468-71. doi: 10.1016/j.leukres.2013.07.036. Epub 2013 Aug 15.

    PubMed 24011826
  • Abbi KK, Rybka W, Ehmann WC, Claxton DF. Phase I/II study of clofarabine, etoposide, and mitoxantrone in patients with refractory or relapsed acute leukemia. Clin Lymphoma Myeloma Leuk. 2015 Jan;15(1):41-6. doi: 10.1016/j.clml.2014.06.005. Epub 2014 Jun 11.

    PubMed 25085441
  • Gill H, Yim R, Pang HH, Lee P, Chan TSY, Hwang YY, Leung GMK, Ip HW, Leung RYY, Yip SF, Kho B, Lee HKK, Mak V, Chan CC, Lau JSM, Lau CK, Lin SY, Wong RSM, Li W, Ma ESK, Li J, Panagiotou G, Sim JPY, Lie AKW, Kwong YL. Clofarabine, cytarabine, and mitoxantrone in refractory/relapsed acute myeloid leukemia: High response rates and effective bridge to allogeneic hematopoietic stem cell transplantation. Cancer Med. 2020 May;9(10):3371-3382. doi: 10.1002/cam4.2865. Epub 2020 Mar 18.

    PubMed 32187883

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Clofarabine, AraC, mitoxantrone (CLAM) in people with Acute Myeloid Leukemia, run by The University of Hong Kong at 1 site in Hong Kong.

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 3 inclusion and 12 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: finished, as of the sponsor's last update on 6 Oct 2022. 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 Hong Kong. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Response rate (time frame: Day 28). 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 NCT02686593, which also lists 10 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 6 Oct 2022.

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