Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.

ClinicalTrials.gov 4 recruiting now early-phase tilt small index

Acute Undifferentiated Leukemia: early-phase trial registry

4 of 9 indexed Acute Undifferentiated Leukemia trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #1,916 of 28,707 conditions by registered trial count.

9 US clinical trials · 4 currently recruiting · #1,916 of 28,707 conditions by registered trial count

Acute Undifferentiated Leukemia: 9 US clinical trials tracked, 4 recruiting.

Acute Undifferentiated Leukemia is the subject of 9 registered US clinical trials on ClinicalTrials.gov, 4 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 7 in Phase 1-2 (earlier-stage). The most active sponsor is Fred Hutchinson Cancer Center, running 4 of these trials.

Enrollment posture brief

Registry condition acute-undifferentiated-leukemia

OPEN 4 | RECR 44% | LATE 0 | EARLY 7 | RANK #1916 | SPON 4

Nearest open-share peer: Acute Ischemic Stroke (44% recruiting · 27 trials)

Acute Lymphoblastic Leukemia55.6%Acute Respiratory Distress S55.6%Acute Undifferentiated L (th…44%Acute Otitis Media22.2%Acute Heart Failure11.1%
Open-enrollment share among volume-matched conditions near Acute Undifferentiated Leukemia

Acute Undifferentiated Leukemia lists 4 open slots (44% of 9 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Acute Undifferentiated Leukemia on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Acute Undifferentiated Leukemia is recruiting below its size-band peers.

    4 of 9 indexed trials (44.4%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. One sponsor concentrates Acute Undifferentiated Leukemia research.

    Fred Hutchinson Cancer Center accounts for 4 of 9 trials (44.4%). 6 distinct sponsors appear on at least one study for this condition label.

  3. Most Acute Undifferentiated Leukemia trials plan to enrol fewer than 100 people.

    Median target enrolment is 36 among the 9 trials that report a genuine target (sentinel values excluded). 8 of those (88.9%) plan for fewer than 100 participants.

  4. Acute Undifferentiated Leukemia research is mostly interventional.

    8 interventional and 1 observational studies make up this index (88.9% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 15Phase 22

Open and recent trials

9 total, page 1 of 1

RECRUITING Phase 2 68 participants

Naive T Cell Depletion for Preventing Chronic Graft-versus-Host Disease in Children and Young Adults With Blood Cancers Undergoing Donor Stem Cell Transplant

Fred Hutchinson Cancer Center

NCT03779854

RECRUITING Phase 1 40 participants

Phase I/II Trial: Engineered Donor Graft (Orca Q) for Pediatric Hematopoietic Cell Transplant (HCT)

University of Florida

NCT05322850

RECRUITING Phase 1 36 participants

Chemotherapy (Decitabine in Combination With FLAG-Ida) and Total-Body Irradiation Followed by Donor Stem Cell Transplant for the Treatment of Adults With Myeloid Malignancies at High Risk of Relapse

Fred Hutchinson Cancer Center

NCT06928662

RECRUITING Phase 1 12 participants

A First-in-Human Study of HLA-Partially to Fully Matched Allogenic Cryopreserved Deceased Donor Bone Marrow Transplantation for Patients With Hematologic Malignancies

Ossium Health

NCT05589896

ACTIVE NOT RECRUITING 153 participants

Infection Prophylaxis and Management in Treating Cytomegalovirus (CMV) Infection in Patients With Hematologic Malignancies Previously Treated With Donor Stem Cell Transplant

City of Hope Medical Center

NCT01199562

COMPLETED Phase 1 36 participants

17-N-Allylamino-17-Demethoxygeldanamycin in Treating Young Patients With Relapsed or Refractory Solid Tumors or Leukemia

National Cancer Institute (NCI)

NCT00079404

COMPLETED Phase 1 21 participants

Fludarabine Phosphate, Low-Dose Total-Body Irradiation, and Donor Stem Cell Transplant Followed by Cyclosporine, Mycophenolate Mofetil, Donor Lymphocyte Infusion in Treating Patients With Hematopoietic Cancer

Fred Hutchinson Cancer Center

NCT00006251

COMPLETED Phase 2 16 participants

Clofarabine, Idarubicin, Cytarabine, Vincristine Sulfate, and Dexamethasone in Treating Patients With Newly Diagnosed or Relapsed Mixed Phenotype Acute Leukemia

M.D. Anderson Cancer Center

NCT02135874

COMPLETED NA 5 participants

Fludarabine and Total-Body Irradiation Followed By Donor Stem Cell Transplant and Cyclosporine and Mycophenolate Mofetil in Treating HIV-Positive Patients With or Without Cancer

Fred Hutchinson Cancer Center

NCT00112593

Phase Distribution

PhaseTrial count
Phase 1 5
Phase 2 2

Named interventions

Most-linked intervention names on Acute Undifferentiated Leukemia records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

mycophenolate mofetil Drug
2 trials
total-body irradiation Radiation
2 trials
cyclosporine Drug
2 trials
fludarabine phosphate Drug
2 trials
Cytarabine Drug
2 trials
nonmyeloablative allogeneic hematopoietic stem cell transplantation Procedure
1 trials
tanespimycin Drug
1 trials
peripheral blood stem cell transplantation Procedure
1 trials

US sites by state

Facility locations filed on Acute Undifferentiated Leukemia trials. A trial with sites in several states counts in each.

Washington 4 trials
California 4 trials
Texas 2 trials
Oregon 2 trials
Georgia 2 trials
Florida 2 trials
Utah 1 trials
Tennessee 1 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Acute Undifferentiated Leukemia page

9 registered trials, 4 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Acute Undifferentiated Leukemia condition card totals 9 registered trials; most-linked intervention mycophenolate mofetil; top US site state Washington. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.