ClinicalTrials.gg
RecruitingNCT07007052TAGVENUpdated Jul 1, 2026

Phase II Study Evaluating the Efficacy and Safety of the Combination of Tagraxofusp and Venetoclax in Treatment-naive Blastic Plasmacytoid Dendritic Cell Neoplasm Patients

A Phase 2 interventional study of Venetoclax and Tagraxofusp in Blastic Plasmacytoid Dendritic Cell Neoplasm (BPDCN), sponsored by French Innovative Leukemia Organisation. Recruiting at 34 sites in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-01.

Sponsored by French Innovative Leukemia Organisation · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Started Dec 2025; still recruiting 11 months later.
Phase
Phase 2
Study type
Interventional
Enrollment
33
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

The goal of this clinical trial is to study the efficacy of the tagraxofusp + venetoclax combination in treatment-naive blastic plasmacytoid dendritic cell neoplasm adult patients.

The main question is to verify the response in patients after 3 cycles of tagraxofusp+venetolax and to demonstrate if the combination of tagraxofusp + venetoclax increases the rate of complete remission, assessed after 3 months of treatment.

Patients will receive a ramp-up phase of venetoclax during 3 days and at least 3 cycles of venetoclax. After, the investigators will evaluate the response, and depending on the response observed, patients may receive additional cycles of treatment for a maximum of 24 cycles, or receive an allograft or discontinue the treatment in the case of therapeutic failure.

02

Conditions studied

  • Blastic Plasmacytoid Dendritic Cell Neoplasm (BPDCN)

Keywords

  • blastic plasmacytoid dendritic cell neoplasm
  • Combination of venetoclax + tagraxofusp
  • Composite complete remission
  • Complete remission
  • Evaluation of response
03

In context

Blastic Plasmacytoid Dendritic Cell Neoplasm

45 studies on the registry are indexed under Blastic Plasmacytoid Dendritic Cell Neoplasm; 15 are open to participants now.

This study's planned enrollment of 33 is below the median of 40 across 37 interventional studies indexed under Blastic Plasmacytoid Dendritic Cell Neoplasm.

Browse Blastic Plasmacytoid Dendritic Cell Neoplasm studies →

Lead sponsor

French Innovative Leukemia Organisation is the lead sponsor of 59 studies on the registry; 9 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Patients with a confirmed BPDCN diagnosis according to WHO 2022 revised criteria and have not received previous treatment : patients with skin or lymph node lesions but no bone marrow involvement can be included
  2. Age >18 years
  3. Ability to understand the protocol and to sign an
  4. Possibility of follow-up
  5. \< 3
  6. Adequate renal function as demonstrated by a calculated ≥ 60 mL/min by the Cockcroft-Gault formula.
  7. Adequate cardiac function defined by >/= 50% by MUGA or ECHO and no abnormalities on a 12-lead
  8. Albumin level≥3,2g/dL
  9. Adequate liver function as demonstrated by:

    • (AST) ≤ 2.5 × *
    • alanine aminotransferase (ALT) ≤ 2.5 × ULN*
    • ≤ 3.0 × ULN, unless due to Gilbert's syndrome* * Unless considered due to leukemic organ involvement, in that cases values must be ≤ 10 × ULN
  10. Men, and women of must be using a highly effective method of
  11. Negative urine/blood pregnancy test within 1 week prior to the initiation of treatment (if applicable)
  12. Patient covered by any social security system

Exclusion criteria

Exclusion Criteria:

  1. Participation to another clinical trial with any investigative drug within 30 days prior to study enrolment.
  2. Previous treatment with venetoclax or tagraxofusp
  3. Treatment of BPDCN with any prior chemotherapy or agents, except hydroxyurea for less than 14 days at the time of inclusion
  4. Concomitant therapy -except for low-dose prednisone (≤10 mg/day)
  5. Known allergy or sensitivity to tagraxofusp, venetoclax, and any of its components or .
  6. Pregnant or breastfeeding woman
  7. Known positivity for or C infection except for those subjects with an undetectable viral load or subjects with serologic evidence of prior vaccination to HBV
  8. Evidence of uncontrolled systemic infection requiring therapy (viral, bacterial, or fungal)
  9. Subject has any history of condition(s) that in the opinion of the investigator would adversely affect his/her participating in this study including, but not limited to:

    • Cardiovascular disease e.g., heart failure > class 2, uncontrolled angina, history of myocardial infarction, unstable angina, or stroke within 6 months prior to study entry, uncontrolled hypertension, or clinically significant arrythmias not controlled by medication.
    • Renal, pulmonary, neurologic, psychiatric, endocrinologic, metabolic, immunologic, hepatic, cardiovascular disease, or bleeding disorder independent of leukemia.
  10. Subject with a history of other within the last three years prior to study entry, except for:

    • Adequately treated in situ carcinoma of the breast or cervix uteri
    • Basal cell carcinoma of the skin or localized squamous cell carcinoma of the skin
    • Prostate cancer without needs for specific therapy
    • Previous malignancy confined and surgically resected (or treated with other modalities) with curative intent.
  11. Malabsorption syndrome or other conditions that preclude enteral route of administration
  12. Patient with hereditary fructose intolerance
Terms in these criteria, in plain language(17)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
33 participants (estimated)

Study arms

  • Experimental
    Single interventional arm

    For each 28 days-cycle of treatment : * venetoclax 400mg/day orally after a ramp-up period of 3-days * tagraxofusp starting at the end of the venetoclax ramp-up period i.e. at day 4 for twelve 28-days cycles, 12 μg/kg body weight administered as an intravenous infusion over 15 minutes, once daily, on days 1-3 of each cycle

    Drug: Venetoclax · Drug: Tagraxofusp

Interventions

  • Single interventional arm

    Also known as: ABT-199, GDC-0199, RG7601, selective BCL-2 inhibitor

  • Single interventional arm

    Also known as: SL-401, CD123-directed cytotoxin

06

What researchers measure

Primary outcomes

  1. Proportion of participants who achieve a cCR (CR or Cri or CRc) after 3 TAGVEN cycles

    Evaluation will be done with a bone marrow aspirate, cytogenetics, metabolic imaging, study of MRD by NGS and flow-cytometry and SWAT SCORE

    Time frame: From enrollment to the end of the third 28 days-cycle

07

Study locations

8 of 34 sites recruiting
08

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No — The individual participant data collected will be analyzed by the sponsor and therefore not shared.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 1, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07007052
Lead sponsor
French Innovative Leukemia Organisation
Responsible party
Sponsor
First posted
Jun 5, 2025
Start date
Dec 11, 2025
Primary completion
Dec 10, 2028 (estimated)
Completion
Oct 2, 2031 (estimated)
Last update
Jul 1, 2026

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

No contact was published for this record. The registry link below has the sponsor’s details.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drugs tested here: Venetoclax · Tagraxofusp

Start the discussion