NCT04317781

Brief Summary

This phase II trial studies the side effects of tagraxofusp in treating patients with blastic plasmacytoid dendritic cell neoplasm after stem cell transplant. Tagraxofusp is a type of immunotoxin that is made by linking a protein called IL-3 to a toxic substance. Tagraxofusp may help find cancer cells that express IL-3 and kill them without harming normal cells.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
3

participants targeted

Target at below P25 for phase_2

Timeline
Completed

Started Mar 2020

Typical duration for phase_2

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 19, 2020

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 23, 2020

Completed
4 days until next milestone

Study Start

First participant enrolled

March 27, 2020

Completed
3.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 11, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 11, 2023

Completed
1 year until next milestone

Results Posted

Study results publicly available

July 16, 2024

Completed
Last Updated

July 31, 2024

Status Verified

July 1, 2024

Enrollment Period

3.3 years

First QC Date

March 19, 2020

Results QC Date

June 21, 2024

Last Update Submit

July 23, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Number of Participants That Received Planned Tagraxofusp Post Transplant

    Participants completed at least 75% of planned tagraxofusp doses in at least 4 cycles of therapy.

    Up to 1 year

Secondary Outcomes (2)

  • Progression Free Survival (PFS)

    From treatment start date to date of disease progression or death, assessed up to 1 year

  • Overall Survival (OS)

    From treatment start date to death, assessed up to 1 year

Study Arms (1)

Treatment (tagraxofusp-erzs)

EXPERIMENTAL

Within day 45 and 180 after stem cell transplant, patients receive tagraxofusp-erzs IV over 15 minutes on days 1-3 of cycles 1-4 and days 1-2 of subsequent cycles. Treatment repeats every 28 days for up to 24 cycles in the absence of disease progression or unacceptable toxicity.

Biological: Tagraxofusp-erzs

Interventions

Given IV

Also known as: Diphtheria Toxin(388)-Interleukin-3 Fusion Protein, DT(388)-IL3 Fusion Protein, DT388IL3 fusion protein, Elzonris, IL3R-targeting Fusion Protein SL-401, SL-401, Tagraxofusp, Tagraxofusp ERZS
Treatment (tagraxofusp-erzs)

Eligibility Criteria

Age2 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Eligible patients will be aged \>= 18 years. Pediatric patients age 2 years and older will be considered on a case by case basis.
  • Diagnosis of blastic plasmacytoid dendritic cell neoplasm (BPDCN) according to World Health Organization (WHO) classification or confirmed by hematopathology
  • The patients must be in partial response or better
  • \> 30 days post-transplant without active or chronic infections
  • Karnofsky performance status \>= 60%; Lansky \>= 60
  • Left ventricular ejection fraction (LVEF) \>= institutional lower limit of normal by multigated acquisition (MUGA) scan or echocardiogram within 30 days of first protocol treatment
  • Diffusion capacity of the lung for carbon monoxide (DLCO) \> 40% of predicted value (corrected for hemoglobin) within 3 months of registration
  • Forced expiratory volume in 1 second (FEV1) \> 40% of predicted value within 3 months of registration
  • Forced vital capacity (FVC) \> 40% of predicted value within 3 months of registration
  • Serum creatinine =\< 1.5 mg/dL (133 mmol/L)
  • Serum albumin \>= 3.2 g/dL (or \>= 32 g/L) without IV albumin within the previous 72 hours
  • Bilirubin =\< 1.5 x the upper limit of normal (\[ULN\] except patients with Gilbert syndrome in whom bilirubin level of \> 1.5 x ULN will be allowed)
  • Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =\< 2.5 times ULN
  • Hemoglobin \>= 8 g/dL with or without transfusion in the last 7 days
  • Absolute neutrophil count (ANC) \>= 1000 without granulocyte colony stimulating factor (GCSF) or granulocyte-macrophage colony-stimulating factor (GMCSF) in the last 2 weeks prior to screening
  • +6 more criteria

You may not qualify if:

  • The patient has persistent clinically significant non-hematologic toxicities \>= grade 2 (excluding alopecia, nausea, and fatigue)
  • Evidence of central nervous system (CNS) involvement
  • Uncontrolled and active pulmonary disease
  • Requirement for oxygen treatment
  • Receiving chemotherapy, radiotherapy or other anti-cancer therapy within 14 days of first dose of study drug. There must be at least a 6-week interval from the last immunotherapy therapy
  • Uncontrolled infection
  • Human immunodeficiency virus (HIV)/hepatitis B and/or C
  • Any history of invasive malignancy in the last 2 years excluding any malignancy such as cervical cancer or skin cancer (excluding melanoma) that is considered cured at the time of screening
  • Pregnant or breast-feeding woman
  • Patient has uncontrolled intercurrent illness or medical/psychiatric condition that would limit compliance with study requirements or that would in the investigator's opinion place the patient at an unacceptably high risk for toxicities
  • Clinical significant cardiopulmonary disease including uncontrolled or New York Heart Association (NYHA) class 3 or 4 congestive heart failure, uncontrolled angina, uncontrolled hypertension, uncontrolled arrhythmia, myocardial infarction or stroke within 6 months of first protocol treatment or corrected QT (QTc) \> 480 ms

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

M D Anderson Cancer Center

Houston, Texas, 77030, United States

Location

Related Publications (1)

  • Wang SY, Thomassen K, Kurch L, Opitz S, Franke GN, Bach E, Platzbecker U, Kayser S. Combination of Tagraxofusp and Azacitidine Is an Effective Option for Relapsed Blastic Plasmacytoid Dendritic Cell Neoplasm After Allogeneic Hematopoietic Stem-Cell Transplantation. Clin Lymphoma Myeloma Leuk. 2021 Jul;21(7):e579-e582. doi: 10.1016/j.clml.2021.02.008. Epub 2021 Mar 2. No abstract available.

Related Links

MeSH Terms

Conditions

Blastic Plasmacytoid Dendritic Cell Neoplasm

Interventions

tagraxofusp

Condition Hierarchy (Ancestors)

Histiocytic Disorders, MalignantNeoplasms by Histologic TypeNeoplasmsLeukemiaLymphomaHematologic NeoplasmsNeoplasms by SiteSkin NeoplasmsHematologic DiseasesHemic and Lymphatic DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Limitations and Caveats

The protocol was terminated early due to slow participant accrual and the sponsor not willing to provide the study drug. Stemline is the funder, not the sponsor.

Results Point of Contact

Title
Qaiser Bashir, M.D. / Stem Cell Transplantation and Cellular Therapy Department
Organization
The University of Texas MD Anderson Cancer Center

Study Officials

  • Qaiser Bashir, MS

    M.D. Anderson Cancer Center

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 19, 2020

First Posted

March 23, 2020

Study Start

March 27, 2020

Primary Completion

July 11, 2023

Study Completion

July 11, 2023

Last Updated

July 31, 2024

Results First Posted

July 16, 2024

Record last verified: 2024-07

Locations