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Hairy Cell LeukemiaPROXYNCT04125290

US Post-Marketing Safety Study of Moxetumomab Pasudotox-tdfk (LUMOXITI)

An observational study of Hairy Cell Leukemia, run by AstraZeneca at 2 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This study is being conducted to satisfy a post-marketing requirement (PMR) to provide evidence characterizing 1) the safety of moxetumomab pasudotox-tdfk in patients who are 65 years of age and older and/or 2) the safety of moxetumomab pasudotox-tdfk in patients who have moderate renal impairment defined as an… Read more about this study

Who is it for?
Any age
Conditions the study is for
Hairy Cell Leukemia
How many people
2 participants
Where
2 sitesUnited States
Study dates
9 Dec 2019to 21 Jun 2021
Phase
Observational
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: The study population will be patients who are prescribed moxetumomab-pasudotox-tdfk who are ≥65 years old at the time of starting initial treatment with moxetumomab pasudotox-tdfk or are ≥18 years old with moderate renal impairment defined as an estimated GFR of 30-59 ml/min, at the time of starting initial treatment with moxetumomab pasudotox-tdfk. These two populations may not be mutually exclusive.

Who may be able to join

  • Provision of written informed consent, if required
  • Patient received at least 1 dose of moxetumomab pasudotox-tdfk and has completed or discontinued the treatment
  • Patient has a medical record available from the start of first dose of moxetumomab pasudotox tdfk
  • AND at least 1 of the following:
  • Patient is ≥65 years old at the time of starting initial treatment with moxetumomab pasudotox-tdfk OR
  • Adult (≥18 years old) patient has moderate renal impairment, at the time of starting initial treatment with moxetumomab pasudotox-tdfk

Who cannot join

None listed.

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Research Site

    Bridgeton, Missouri, 63044

  • Rocky Mountain Cancer Centers

    Pueblo, Colorado, 81008

Other trials in United States

About this study

Official title: US Post-Marketing Retrospective Observational Safety Study of Moxetumomab Pasudotox-tdfk (LUMOXITI)(TM)

This study is being conducted to satisfy a post-marketing requirement (PMR) to provide evidence characterizing 1) the safety of moxetumomab pasudotox-tdfk in patients who are 65 years of age and older and/or 2) the safety of moxetumomab pasudotox-tdfk in patients who have moderate renal impairment defined as an estimated GFR of 30-59 ml/min

Read the detailed description

The pivotal Phase 3 study (Study 1053) supported full approval of moxetumomab pasudotox-tdfk from the US Food and Drug Administration (FDA) for the treatment of adult patients with relapsed or refractory hairy cell leukemia (HCL) who received at least two prior systemic therapies, including treatment with a PNA, on 13 September 2018. Since HCL is a rare disease, clinical research has limited information concerning the safety of moxetumomab pasudotox-tdfk in elderly patient populations and patients with moderate renal impairment.This study is being conducted to satisfy a post-marketing requirement (PMR) to provide evidence characterizing the safety of moxetumomab in these patients.

Keywords
capillary leak syndrome, hemolytic uremic syndrome, renal toxicity, infusion-related reaction, electrolyte abnormalities, HCL and all relevant indications where LUMOXITI will be prescribed
Medical subject headings
Leukemia, Hairy Cell, Capillary Leak Syndrome, Hemolytic-Uremic Syndrome

What is being measured

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

  1. Incident proportion of capillary leak syndrome

    Measured: From day 1 of moxetumomab pasudotox-tdfk initiation up to 30 days after last dose of moxetumomab pasudotox-tdfk.

  2. Incident proportion of hemolytic uremic syndrome

    Measured: From day 1 of moxetumomab pasudotox-tdfk initiation up to 30 days after last dose of moxetumomab pasudotox-tdfk.

  3. Incident proportion of renal toxicity

    Measured: From day 1 of moxetumomab pasudotox-tdfk initiation up to 30 days after last dose of moxetumomab pasudotox-tdfk.

  4. Incident proportion of infusion related reactions

    Measured: From day 1 of moxetumomab pasudotox-tdfk initiation up to 30 days after last dose of moxetumomab pasudotox-tdfk.

  5. Incident proportion of electrolyte and biochemical abnormalities

    Electrolyte and biochemical abnormalities are defined as laboratory measurements of interest that exceed local laboratory standards

    Measured: From day 1 of moxetumomab pasudotox-tdfk initiation up to 30 days after last dose of moxetumomab pasudotox-tdfk.

  6. Incident proportion of other medical events related to moxetumomab pasudotox-tdfk interruption or discontinuation

    Measured: From day 1 of moxetumomab pasudotox-tdfk initiation up to 30 days after last dose of moxetumomab pasudotox-tdfk.

  7. Incident proportion of other serious medical events that are life-threatening, resulting in hospitalizations and/or death

    Measured: From day 1 of moxetumomab pasudotox-tdfk initiation up to 30 days after last dose of moxetumomab pasudotox-tdfk.

Timeline

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

  1. First posted14 Oct 2019
  2. Study start9 Dec 2019
  3. Primary completion21 Jun 2021
  4. Study completion21 Jun 2021

Why it stopped: Study stopped due to lack of recruitment.

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
2 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04125290
Sponsor's protocol ID
D3143R00004
Acronym
PROXY
Status last verified
Jul 2025
First submitted
13 Sep 2019
Last updated
18 Jul 2025
Results posted
No
Data monitoring committee
No
FDA-regulated device
No

Publications

  • Bouroncle BA. Thirty-five years in the progress of hairy cell leukemia. Leuk Lymphoma. 1994;14 Suppl 1:1-12.

    PubMed 7820038
  • Jemal A, Siegel R, Ward E, Murray T, Xu J, Thun MJ. Cancer statistics, 2007. CA Cancer J Clin. 2007 Jan-Feb;57(1):43-66. doi: 10.3322/canjclin.57.1.43.

    PubMed 17237035
  • Kreitman 2018, Leukemia https://doi.org/10.1038/s41375-018-0210-1

  • Kreitman RJ, Cheson BD. Malignancy: Current Clinical Practice: Treatment of Hairy Cell Leukemia at the Close of the 20th Century. Hematology. 1999;4(4):283-303. doi: 10.1080/10245332.1999.11746452.

    PubMed 11399570
  • Kroft SH, Tallman MS, Shaw JM, Thangavelu M, Peterson LC. Myelodysplasia following treatment of chronic lymphocytic leukemia (CLL) with 2-chlorodeoxyadenosine (2-CdA). Leukemia. 1997 Jan;11(1):170. doi: 10.1038/sj.leu.2400523. No abstract available.

    PubMed 9001435
  • Leleu X, Soumerai J, Roccaro A, Hatjiharissi E, Hunter ZR, Manning R, Ciccarelli BT, Sacco A, Ioakimidis L, Adamia S, Moreau AS, Patterson CJ, Ghobrial IM, Treon SP. Increased incidence of transformation and myelodysplasia/acute leukemia in patients with Waldenstrom macroglobulinemia treated with nucleoside analogs. J Clin Oncol. 2009 Jan 10;27(2):250-5. doi: 10.1200/JCO.2007.15.1530. Epub 2008 Dec 8.

    PubMed 19064987
  • Seymour JF, Kurzrock R, Freireich EJ, Estey EH. 2-chlorodeoxyadenosine induces durable remissions and prolonged suppression of CD4+ lymphocyte counts in patients with hairy cell leukemia. Blood. 1994 May 15;83(10):2906-11.

    PubMed 7910051
  • Seymour JF, Talpaz M, Kurzrock R. Response duration and recovery of CD4+ lymphocytes following deoxycoformycin in interferon-alpha-resistant hairy cell leukemia: 7-year follow-up. Leukemia. 1997 Jan;11(1):42-7. doi: 10.1038/sj.leu.2400513.

    PubMed 9001417

Questions about this trial

What is this clinical trial studying?

An observational study of Hairy Cell Leukemia, run by AstraZeneca at 2 sites in United States.

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 6 inclusion and 0 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: stopped early, as of the sponsor's last update on 18 Jul 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. 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.

Are results available for this study?

The study was stopped early (reason given: Study stopped due to lack of recruitment.). Results are not available in the source record.

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?

Incident proportion of capillary leak syndrome (time frame: From day 1 of moxetumomab pasudotox-tdfk initiation up to 30 days after last dose of moxetumomab pasudotox-tdfk.). The study lists 7 primary outcomes in all. 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 NCT04125290, which also lists 8 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 18 Jul 2025.

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