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

NCT04216524 | Recruiting Phase 2 FDA Drug

• 3 other identifiers: 2019-0587NCI-2019-08358P30CA016672
• Study Type: interventional
• Target: 40
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

Blastic Plasmacytoid Dendritic Cell Neoplasm

Outcome Measures

Primary Outcomes (4)

• Progression free survival (PFS)

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

  Up to 6 years

• 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.

  Up to 6 years

• 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.

  Up to 6 years

• 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.

  Up to 6 years

Study Arms (1)

Treatment (SL-401, venetoclax, chemotherapy)

EXPERIMENTAL

See detailed description.

Drug: Cyclophosphamide; Drug: Cytarabine; Drug: Dexamethasone; Drug: Doxorubicin; Drug: Mercaptopurine; Drug: Methotrexate; Drug: Methylprednisolone; Drug: Prednisone; Biological: Rituximab; Biological: Tagraxofusp-erzs; Drug: Venetoclax; Drug: Vincristine

Interventions

Cytarabine DRUG

Given IT or IV

Also known as: .beta.-Cytosine arabinoside, 1-.beta.-D-Arabinofuranosyl-4-amino-2(1H)pyrimidinone, 1-.beta.-D-Arabinofuranosylcytosine, 1-Beta-D-arabinofuranosyl-4-amino-2(1H)pyrimidinone, 1-Beta-D-arabinofuranosylcytosine, 1.beta.-D-Arabinofuranosylcytosine, 2(1H)-Pyrimidinone, 4-Amino-1-beta-D-arabinofuranosyl-, 2(1H)-Pyrimidinone, 4-amino-1.beta.-D-arabinofuranosyl-, Alexan, Ara-C, ARA-cell, Arabine, Arabinofuranosylcytosine, Arabinosylcytosine, Aracytidine, Aracytin, Aracytine, Beta-Cytosine Arabinoside, CHX-3311, Cytarabinum, Cytarbel, Cytosar, Cytosine Arabinoside, Cytosine-.beta.-arabinoside, Cytosine-beta-arabinoside, Erpalfa, Starasid, Tarabine PFS, U 19920, U-19920, Udicil, WR-28453

Treatment (SL-401, venetoclax, chemotherapy)

Dexamethasone DRUG

Given PO or IV

Also known as: Aacidexam, Adexone, Aknichthol Dexa, Alba-Dex, Alin, Alin Depot, Alin Oftalmico, Amplidermis, Anemul mono, Auricularum, Auxiloson, Baycadron, Baycuten, Baycuten N, Cortidexason, Cortisumman, Decacort, Decadrol, Decadron, Decadron DP, Decalix, Decameth, Decasone R.p., Dectancyl, Dekacort, Deltafluorene, Deronil, Desamethasone, Desameton, Dexa-Mamallet, Dexa-Rhinosan, Dexa-Scheroson, Dexa-sine, Dexacortal, Dexacortin, Dexafarma, Dexafluorene, Dexalocal, Dexamecortin, Dexameth, Dexamethasone Intensol, Dexamethasonum, Dexamonozon, Dexapos, Dexinoral, Dexone, Dinormon, Fluorodelta, Fortecortin, Gammacorten, Hexadecadrol, Hexadrol, Lokalison-F, Loverine, Methylfluorprednisolone, Millicorten, Mymethasone, Orgadrone, Spersadex, TaperDex, Visumetazone, ZoDex

Treatment (SL-401, venetoclax, chemotherapy)

Doxorubicin DRUG

Given IV

Also known as: Adriablastin, Hydroxydaunomycin, Hydroxyl Daunorubicin, Hydroxyldaunorubicin

Treatment (SL-401, venetoclax, chemotherapy)

Mercaptopurine DRUG

Given PO

Also known as: 3H-Purine-6-thiol, 6 MP, 6 Thiohypoxanthine, 6 Thiopurine, 6-Mercaptopurine, 6-Mercaptopurine Monohydrate, 6-MP, 6-Purinethiol, 6-Thiopurine, 6-Thioxopurine, 6H-Purine-6-thione, 1,7-dihydro- (9CI), 7-Mercapto-1,3,4,6-tetrazaindene, Alti-Mercaptopurine, Azathiopurine, Bw 57-323H, Flocofil, Ismipur, Leukerin, Leupurin, Mercaleukim, Mercaleukin, Mercaptina, Mercaptopurinum, Mercapurin, Mern, NCI-C04886, Puri-Nethol, Purimethol, Purine, 6-mercapto-, Purine-6-thiol (8CI), Purine-6-thiol, monohydrate, Purinethiol, Purinethol, U-4748, WR-2785

Treatment (SL-401, venetoclax, chemotherapy)

Methotrexate DRUG

Given IT, IV, or PO

Also known as: Abitrexate, Alpha-Methopterin, Amethopterin, Brimexate, CL 14377, CL-14377, Emtexate, Emthexat, Emthexate, Farmitrexat, Fauldexato, Folex, Folex PFS, Lantarel, Ledertrexate, Lumexon, Maxtrex, Medsatrexate, Metex, Methoblastin, Methotrexate LPF, Methotrexate Methylaminopterin, Methotrexatum, Metotrexato, Metrotex, Mexate, Mexate-AQ, MTX, Novatrex, Rheumatrex, Texate, Tremetex, Trexeron, Trixilem, WR-19039

Treatment (SL-401, venetoclax, chemotherapy)

Methylprednisolone DRUG

Given IV

Also known as: Adlone, Caberdelta M, DepMedalone, Depo Moderin, Depo-Nisolone, Duralone, Emmetipi, Esametone, Firmacort, Medlone 21, Medrate, Medrol, Medrol Veriderm, Medrone, Mega-Star, Meprolone, Methylprednisolonum, Metilbetasone Solubile, Metrocort, Metypresol, Metysolon, Predni-M-Tablinen, Prednilen, Radilem, Sieropresol, Solpredone, Summicort, Urbason, Veriderm Medrol, Wyacort

Treatment (SL-401, venetoclax, chemotherapy)

Prednisone DRUG

Given PO

Also known as: .delta.1-Cortisone, 1, 2-Dehydrocortisone, Adasone, Cortancyl, Dacortin, DeCortin, Decortisyl, Decorton, Delta 1-Cortisone, Delta-Dome, Deltacortene, Deltacortisone, Deltadehydrocortisone, Deltasone, Deltison, Deltra, Econosone, Lisacort, Meprosona-F, Metacortandracin, Meticorten, Ofisolona, Orasone, Panafcort, Panasol-S, Paracort, Perrigo Prednisone, PRED, Predicor, Predicorten, Prednicen-M, Prednicort, Prednidib, Prednilonga, Predniment, Prednisone Intensol, Prednisonum, Prednitone, Promifen, Rayos, Servisone, SK-Prednisone

Treatment (SL-401, venetoclax, chemotherapy)

Rituximab BIOLOGICAL

Given IV

Also known as: ABP 798, BI 695500, C2B8 Monoclonal Antibody, Chimeric Anti-CD20 Antibody, CT-P10, IDEC-102, IDEC-C2B8, IDEC-C2B8 Monoclonal Antibody, MabThera, Monoclonal Antibody IDEC-C2B8, PF-05280586, Rituxan, Rituximab ABBS, Rituximab Biosimilar ABP 798, Rituximab Biosimilar BI 695500, Rituximab Biosimilar CT-P10, Rituximab Biosimilar GB241, Rituximab Biosimilar IBI301, Rituximab Biosimilar JHL1101, Rituximab Biosimilar PF-05280586, Rituximab Biosimilar RTXM83, Rituximab Biosimilar SAIT101, rituximab biosimilar TQB2303, rituximab-abbs, RTXM83, Truxima

Treatment (SL-401, venetoclax, chemotherapy)

Tagraxofusp-erzs BIOLOGICAL

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 (SL-401, venetoclax, chemotherapy)

Venetoclax DRUG

Given PO

Also known as: ABT-0199, ABT-199, ABT199, GDC-0199, RG7601, Venclexta, Venclyxto

Treatment (SL-401, venetoclax, chemotherapy)

Vincristine DRUG

Given IV

Also known as: Leurocristine, VCR, Vincrystine

Treatment (SL-401, venetoclax, chemotherapy)

Cyclophosphamide DRUG

Given IV

Also known as: (-)-Cyclophosphamide, 2H-1,3,2-Oxazaphosphorine, 2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide, monohydrate, Carloxan, Ciclofosfamida, Ciclofosfamide, Cicloxal, Clafen, Claphene, CP monohydrate, CTX, CYCLO-cell, Cycloblastin, Cycloblastine, Cyclophospham, Cyclophosphamid monohydrate, Cyclophosphamide Monohydrate, Cyclophosphamidum, Cyclophosphan, Cyclophosphane, Cyclophosphanum, Cyclostin, Cyclostine, Cytophosphan, Cytophosphane, Cytoxan, Fosfaseron, Genoxal, Genuxal, Ledoxina, Mitoxan, Neosar, Revimmune, Syklofosfamid, WR- 138719

Treatment (SL-401, venetoclax, chemotherapy)

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Treatment naïve or relapsed refractory patients with histologically confirmed diagnosis of blastic plasmacytoid dendritic cell neoplasm (BPDCN) per 2016 WHO criteria
• Front line participants may have received emergent chemotherapy prior to study enrollment:
• 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.
• Age ≥ 18 years
• ECOG performance status 0, 1, or 2 (see APPENDIX B)
• Adequate organ function as defined by:
• Albumin ≥ 3.2 g/dL (in the absence of receipt of intravenous albumin in the previous 72 hours)
• Serum creatinine \< 1.5x ULN
• Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) \< 2.5x ULN
• Total bilirubin \< 1.5x ULN (if total bilirubin is \> 1.5x but \< 3x ULN, and thought to be elevated due to Gilbert's disease or the patient's BPDCN, the subject may be eligible but must discuss with the PI)
• Ability to understand and the willingness to sign a written informed consent document.
• Able to adhere to study visit schedule and other protocol requirements including follow-up for survival assessment
• Women of child-bearing potential and men enrolled on this protocol must agree to use adequate contraception for the duration of study participation and for 2 months after completion VEN administration. Acceptable birth control methods allowed to be used while on study include:

You may not qualify if:

• 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
• Participants with active heart disease (New York Heart Association (NYHA) class 3-4 as assessed by history and physical examination, unstable angina/stroke/myocardial infarction within the last 6 months)
• Malabsorption syndrome or other conditions that preclude enteral route of administration
• Other severe acute or chronic medical or psychiatric condition or laboratory abnormality that in the opinion of the investigator may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results and/or would make the participants inappropriate for enrollment into this study

Sponsors & Collaborators

• M.D. Anderson Cancer Center: lead
• National Cancer Institute (NCI): collaborator

Study Sites (1)

M D Anderson Cancer Center

Houston, Texas, 77030, United States

RECRUITING

Related Links

• MD Anderson Cancer Center Website

MeSH Terms

Conditions

Blastic Plasmacytoid Dendritic Cell Neoplasm

Interventions

Cyclophosphamide; Cytarabine; Dexamethasone; Calcium Dobesilate; auricularum; dexamethasone acetate; dexamethasone 21-phosphate; Doxorubicin; Mercaptopurine; azathiopurine; Methotrexate; merphos; Methylprednisolone; exifone; Medrol Veriderm; Prednisone; deltacortene; prednylidene; Rituximab; CT-P10; tagraxofusp; venetoclax; Vincristine

Condition Hierarchy (Ancestors)

Histiocytic Disorders, Malignant; Neoplasms by Histologic Type; Neoplasms; Leukemia; Lymphoma; Hematologic Neoplasms; Neoplasms by Site; Skin Neoplasms; Hematologic Diseases; Hemic and Lymphatic Diseases; Skin Diseases; Skin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

Phosphoramide Mustards; Nitrogen Mustard Compounds; Mustard Compounds; Hydrocarbons, Halogenated; Hydrocarbons; Organic Chemicals; Phosphoramides; Organophosphorus Compounds; Cytidine; Pyrimidine Nucleosides; Pyrimidines; Heterocyclic Compounds, 1-Ring; Heterocyclic Compounds; Arabinonucleosides; Nucleosides; Nucleic Acids, Nucleotides, and Nucleosides; Pregnadienetriols; Pregnadienes; Pregnanes; Steroids; Fused-Ring Compounds; Polycyclic Compounds; Steroids, Fluorinated; Benzenesulfonates; Benzene Derivatives; Hydrocarbons, Aromatic; Hydrocarbons, Cyclic; Arylsulfonates; Arylsulfonic Acids; Sulfonic Acids; Sulfur Acids; Sulfur Compounds; Daunorubicin; Anthracyclines; Naphthacenes; Polycyclic Aromatic Hydrocarbons; Aminoglycosides; Glycosides; Carbohydrates; Sulfhydryl Compounds; Purines; Heterocyclic Compounds, 2-Ring; Heterocyclic Compounds, Fused-Ring; Aminopterin; Pterins; Pteridines; Prednisolone; Pregnadienediols; Antibodies, Monoclonal, Murine-Derived; Antibodies, Monoclonal; Antibodies; Immunoglobulins; Immunoproteins; Blood Proteins; Proteins; Amino Acids, Peptides, and Proteins; Serum Globulins; Globulins; Vinca Alkaloids; Secologanin Tryptamine Alkaloids; Indole Alkaloids; Alkaloids; Indoles; Indolizidines; Indolizines

Study Officials

• Naveen Pemmaraju

  M.D. Anderson Cancer Center

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Naveen Pemmaraju

CONTACT

713-792-4956; npemmaraju@mdanderson.org

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: December 30, 2019
• First Posted: January 2, 2020
• Study Start: May 29, 2020
• Primary Completion (Estimated): December 31, 2026
• Study Completion (Estimated): December 31, 2026
• Last Updated: April 14, 2026

Record last verified: 2026-04

Locations

US (1)