Venetoclax, SL-401, and Chemotherapy for the Treatment of Blastic Plasmacytoid Dendritic Cell Neoplasm

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorM.D. Anderson Cancer Center

About this trial

This phase II trial studies how well venetoclax, SL-401, and chemotherapy works in treating patients with blastic plasmacytoid dendritic cell neoplasm. Venetoclax may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. SL-401 is a recombinant protein consisting of IL-3 linked to a toxic agent called DT. IL-3 attaches to IL-3 receptors on tumor cells in a targeted way and delivers DT to kill them. Drugs used in chemotherapy work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving venetoclax and SL-401 with chemotherapy may be an effective treatment for patients with blastic plasmacytoid dendritic cell neoplasm.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Treatment naïve or relapsed refractory patients with histologically confirmed diagnosis of blastic plasmacytoid dendritic cell neoplasm (BPDCN) per 2016 WHO criteria

One prior cycle of SL-401, or other BPDCN-directed therapy, will be allowed prior to entering the study.

Prior or concomitant doses of ARA-C (cytarabine) or Hydroxyurea are allowed on before or during the study for proliferative disease due to BPDCN.

Relapsed/refractory participants may have received at least one prior cycle of therapy.

Disqualifiers

Participants is pregnant or breastfeeding

Known active hepatitis B or C infection, or known seropositivity for human immunodeficiency virus (HIV)

Major surgery or radiation therapy within 14 days prior to the first study dose

Symptomatic or untreated leptomeningeal disease or spinal cord compression

Trial design

Design model

Single group

Treatments tested in this trial

  • Cyclophosphamide

    Drug

    Given IV

  • Cytarabine

    Drug

    Given IT or IV

  • Dexamethasone

    Drug

    Given PO or IV

  • Doxorubicin

    Drug

    Given IV

  • Mercaptopurine

    Drug

    Given PO

  • Methotrexate

    Drug

    Given IT, IV, or PO

  • Methylprednisolone

    Drug

    Given IV

  • Prednisone

    Drug

    Given PO

  • Rituximab

    Biological/Vaccine

    Given IV

  • Tagraxofusp-erzs

    Biological/Vaccine

    Given IV

  • Venetoclax

    Drug

    Given PO

  • Vincristine

    Drug

    Given IV

Treatment groups

40 Participants
are divided into 1 treatment group
Group A: Treatment (SL-401, venetoclax, chemotherapy)Experimental treatment 12 interventions

Trial outcomes

Primary outcomes

1

Progression free survival (PFS)

The median PFS time will be estimated by Bayesian posterior estimates. Estimated using the Kaplan-Meier method.

Time frame
Up to 6 years
2

Incidence of adverse events

Will be reported by type, frequency and severity. Highest toxicity grades per patient per course will be tabulated for selected adverse events and laboratory measurements.

Time frame
Up to 6 years
3

Overall response rate

Overall response rate along with complete remission and complete remission with incomplete hematologic recovery will be estimated along with 95% confidence interval.

Time frame
Up to 6 years
4

Rate of stem cell transplant

The response rate will be compared between subgroups (e.g. minimal residual disease negativity, etc.) by Fisher's exact test, and Wilcoxon rank test will be used to compare the patient clinical information (e.g., protein expression) between subgroups such as response and non-response.

Time frame
Up to 6 years

Secondary outcomes

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

M.D. Anderson Cancer Center

Lead sponsor

National Cancer Institute (NCI)

Collaborator