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ClinicalTrials.gov 51 recruiting now early-phase tilt #35 of 28,707 conditions

Leukemia: early-phase trial registry

51 of 274 indexed Leukemia trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #35 of 28,707 conditions by registered trial count.

274 US clinical trials · 51 currently recruiting · #35 of 28,707 conditions by registered trial count

Leukemia: 274 US clinical trials tracked, 51 recruiting.

Leukemia is the subject of 274 registered US clinical trials on ClinicalTrials.gov, 51 of them currently open to new participants. 19 are in Phase 3-4 (later-stage) and 193 in Phase 1-2 (earlier-stage). The most active sponsor is M.D. Anderson Cancer Center, running 37 of these trials.

Enrollment posture brief

Registry condition leukemia

OPEN 51 | RECR 19% | LATE 19 | EARLY 193 | RANK #35 | SPON 37

Nearest open-share peer: Rheumatoid Arthritis (19% recruiting · 199 trials)

Post Traumatic Stress Disord41.5%Major Depressive Disorder38.5%Pancreatic Cancer35.7%Melanoma33.1%Leukemia (this)19%
Open-enrollment share among volume-matched conditions near Leukemia

Leukemia lists 51 open slots (19% of 274 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 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. Leukemia is recruiting below its size-band peers.

    51 of 274 indexed trials (18.6%) are open to enrollment, against a 37.1% average across 139 conditions with 100+ trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. Sponsorship of Leukemia trials is spread across many organizations.

    M.D. Anderson Cancer Center accounts for 37 of 274 trials (13.5%). 84 distinct sponsors appear on at least one study for this condition label.

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

    Median target enrolment is 49 among the 234 trials that report a genuine target (sentinel values excluded). 170 of those (72.6%) plan for fewer than 100 participants.

  4. Leukemia research is mostly interventional.

    243 interventional and 31 observational studies make up this index (88.7% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 198Phase 295Phase 318Phase 41

Open and recent trials

274 total, page 3 of 6

COMPLETED NA 325 participants

Collection of Patient-Reported Symptoms and Performance Status Via the Internet

Alliance for Clinical Trials in Oncology

NCT00417040

COMPLETED Phase 1 282 participants

Clofarabine, Idarubicin, and Cytarabine (CIA) Versus Fludarabine, Idarubicin, and Cytarabine (FLAI) in Acute Myelogenous Leukemia (AML) and High-Risk Myelodysplastic Syndrome

M.D. Anderson Cancer Center

NCT01289457

COMPLETED NA 279 participants

Illness Management and Parental Adjustment to Cancer Treatment

Children's Hospital Medical Center, Cincinnati

NCT02505165

COMPLETED Phase 2 277 participants

Everolimus in Treating Patients With Lymphoma That Has Relapsed or Not Responded to Previous Treatment

Mayo Clinic

NCT00436618

COMPLETED Phase 3 275 participants

Epoetin Alfa in Treating Anemia in Patients With Lymphoma, Chronic Lymphocytic Leukemia, or Multiple Myeloma and Anemia Caused By Chemotherapy

Memorial Sloan Kettering Cancer Center

NCT00003341

COMPLETED Phase 2 264 participants

Efficacy Study of T Cell Depleted Allogeneic Non-myeloablative Stem Cell Transplant

David Rizzieri, MD

NCT00597714

COMPLETED Phase 3 254 participants

Chemotherapy in Treating Children With Down Syndrome and Myeloproliferative Disorder, Acute Myelogenous Leukemia, or Myelodysplastic Syndrome

Children's Oncology Group

NCT00003593

COMPLETED 252 participants

Validating Pain Scales in Children and Young Adults

National Cancer Institute (NCI)

NCT01639950

COMPLETED Phase 3 250 participants

Glutamic Acid in Reducing Nerve Damage Caused by Vincristine in Young Patients With Cancer

University of South Florida

NCT00369564

COMPLETED Phase 3 233 participants

IV Busulfan With Allo-BMT: Study for Patients With Acute Myelogenous Leukemia and Myelodysplastic Syndrome

M.D. Anderson Cancer Center

NCT00469144

COMPLETED Phase 2 221 participants

Induction Intensification in Treating Infants With Newly Diagnosed Acute Lymphoblastic Leukemia

Children's Oncology Group

NCT00002756

COMPLETED Phase 3 198 participants

A Web-Based Stem Cell Transplant Support System or Standard Care in Young Patients Undergoing Stem Cell Transplant and Their Families

Tufts Medical Center

NCT00782145

COMPLETED Phase 2 185 participants

Phase II Decitabine (DAC) Versus Azacitidine (AZA) in Myelodysplastic Syndrome (MDS)

M.D. Anderson Cancer Center

NCT02269280

COMPLETED Phase 2 176 participants

Allo Non-Myeloablative SCT Utilizing Mis-Matched Family Member Stem Cells Purged Using Campath

David Rizzieri, MD

NCT00580034

COMPLETED Phase 2 156 participants

Radiation Therapy and Chemotherapy in Treating Children With CNS Relapse From Acute Lymphoblastic Leukemia

National Cancer Institute (NCI)

NCT00002704

COMPLETED Phase 2 130 participants

S0020 Immunosuppressive Therapy in Treating Patients With Myelodysplastic Syndrome

SWOG Cancer Research Network

NCT00016419

COMPLETED Phase 2 113 participants

Study of Voreloxin (Vosaroxin) in Older Patients With Untreated Acute Myeloid Leukemia

Sunesis Pharmaceuticals

NCT00607997

COMPLETED Phase 3 105 participants

S0521, Combination Chemotherapy With or Without Gemtuzumab Followed By Tretinoin, Mercaptopurine, and Methotrexate or Observation in Treating Patients With Acute Promyelocytic Leukemia

SWOG Cancer Research Network

NCT00492856

COMPLETED Phase 2 105 participants

Rituximab, Chemotherapy, and Filgrastim in Treating Patients With Burkitt's Lymphoma or Burkitt's Leukemia

Alliance for Clinical Trials in Oncology

NCT00039130

COMPLETED Phase 2 104 participants

Fludarabine and Monoclonal Antibody Therapy in Treating Patients With Untreated B-cell Chronic Lymphocytic Leukemia

Alliance for Clinical Trials in Oncology

NCT00003248

COMPLETED Early Phase 1 100 participants

Nutrition and Physical Activity Intervention in Preventing Excess Weight Gain in Pediatric Patients With Leukemia or Lymphoma Treated With Prednisone and/or Dexamethasone

M.D. Anderson Cancer Center

NCT05049785

COMPLETED Phase 2 100 participants

Topotecan in Treating Patients With Myelodysplastic Syndrome

Alliance for Clinical Trials in Oncology

NCT00003675

COMPLETED Phase 3 98 participants

Opioid Titration Order Sheet or Standard Care in Treating Patients With Cancer Pain

Vanderbilt-Ingram Cancer Center

NCT00666211

COMPLETED Phase 2 96 participants

Phase II Trial of a Chemotherapy Alone Regimen of IV Busulfan (Busulfex), Melphalan and Fludarabine as Myeloablative Regimen Followed by an Allogeneic T-Cell Depleted Hematopoietic Stem Cell Transplant From an HLA-Identical, or HLA-Non Identical Related or Unrelated Donor

Memorial Sloan Kettering Cancer Center

NCT00582933

COMPLETED Phase 2 94 participants

Rituximab, Cyclophosphamide, and Pegfilgrastim in Treating Patients With Leukemia or Non-Hodgkin's Lymphoma

Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins

NCT00278161

COMPLETED Phase 2 90 participants

Umbilical Cord Blood Transplantation in Treating Patients With Hematologic Cancer or Other Hematologic or Metabolic Diseases

Roswell Park Cancer Institute

NCT00003662

COMPLETED NA 90 participants

African American Cancer Clinical Trial Decisions: Testing Tailored Messages

Virginia Commonwealth University

NCT02356549

COMPLETED Phase 2 84 participants

Cord Blood With T-Cell Depleted Haplo-identical Peripheral Blood Stem Cell Transplantation for Hematological Malignancies

Memorial Sloan Kettering Cancer Center

NCT01682226

COMPLETED Phase 3 83 participants

Combination Chemotherapy in Treating Patients With Non-Hodgkin's Lymphoma or Acute Lymphocytic Leukemia

Children's Oncology Group

NCT00005977

COMPLETED Phase 2 82 participants

Donor Stem Cell Transplant in Treating Patients With Relapsed Hematologic Cancer

Alliance for Clinical Trials in Oncology

NCT00053196

COMPLETED Phase 2 79 participants

S0333 Combination Chemotherapy in Treating Patients With Newly Diagnosed Acute Lymphoblastic Leukemia

SWOG Cancer Research Network

NCT00109837

COMPLETED NA 78 participants

Improving Patient Education for Lymphoma and Leukemia Inpatients

Emory University

NCT02642510

COMPLETED Phase 1 70 participants

Safety and Efficacy of 90Y Zevalin in Nonmyeloablative Transplantation for Lymphoid Malignancies

M.D. Anderson Cancer Center

NCT00048737

COMPLETED 70 participants

C-Reactive Protein as a Predictor of Stem Cell Transplant Complications

Ann & Robert H Lurie Children's Hospital of Chicago

NCT00179868

COMPLETED Phase 2 69 participants

S0301 Cyclosporine, Daunorubicin, and Cytarabine in Treating Older Patients With Previously Untreated Acute Myeloid Leukemia

SWOG Cancer Research Network

NCT00066794

COMPLETED Phase 2 68 participants

Pentostatin, Cyclophosphamide, and Rituximab With or Without Bevacizumab in Treating Patients With B-Cell Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma

Mayo Clinic

NCT00816595

COMPLETED Phase 2 68 participants

Donor Stem Cell Transplant in Treating Patients With High-Risk Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma

Alliance for Clinical Trials in Oncology

NCT01027000

COMPLETED Phase 1 65 participants

Decitabine Followed by Clofarabine, Idarubicin, and Cytarabine in Acute Leukemia

M.D. Anderson Cancer Center

NCT01794702

COMPLETED NA 65 participants

Safety and Efficacy of Campath in Nonmyeloablative Transplantation

M.D. Anderson Cancer Center

NCT00038844

COMPLETED Phase 1 61 participants

Arsenic Trioxide, Cytarabine, and Idarubicin in Treating Patients With Acute Myeloid Leukemia

Roswell Park Cancer Institute

NCT00093483

COMPLETED 61 participants

Evaluation of Loratadine for G-CSF Induced Bone Pain in Patients With Hematologic Malignancies

Wake Forest University Health Sciences

NCT02305979

COMPLETED Phase 2 60 participants

Thiotepa-Clofarabine-Busulfan With Allogeneic Stem Cell Transplant for High Risk Malignancies

M.D. Anderson Cancer Center

NCT00857389

COMPLETED Phase 2 59 participants

Combination Chemotherapy in Treating Children With Newly Diagnosed Acute Lymphocytic Leukemia

Children's Oncology Group

NCT00003671

COMPLETED NA 59 participants

A Novel Health Information Technology System (BMT Roadmap) for Pediatric BMT Patients and Caregivers

University of Michigan Rogel Cancer Center

NCT02409121

COMPLETED Phase 2 57 participants

Study of AP23573 in Patients With Relapsed or Refractory Hematologic Malignancies (8669-024)(COMPLETED)

Merck Sharp & Dohme

NCT00086125

COMPLETED Phase 2 55 participants

CMA-676 in Treating Older Patients With Acute Myeloid Leukemia in First Relapse

Pfizer

NCT00003673

COMPLETED Phase 2 53 participants

Alemtuzumab and Glucocorticoids in Treating Newly Diagnosed Acute Graft-Versus-Host Disease in Patients Who Have Undergone a Donor Stem Cell Transplant

Fred Hutchinson Cancer Center

NCT00410657

COMPLETED Phase 2 50 participants

Chemotherapy Plus Radiation Therapy and Biological Therapy in Treating Patients With Hematologic Cancer

Fred Hutchinson Cancer Center

NCT00002553

COMPLETED Phase 1 50 participants

Pentostatin, Cyclophosphamide, Rituximab, and Mitoxantrone in Treating Patients With Chronic Lymphocytic Leukemia or Other Low-Grade B-Cell Cancer

Memorial Sloan Kettering Cancer Center

NCT00546377

COMPLETED Phase 2 50 participants

SWOG-9400 Combination Chemotherapy With or Without Bone Marrow Transplantation in Treating Patients With Previously Untreated Acute Lymphocytic Leukemia

SWOG Cancer Research Network

NCT00002665

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Phase Distribution

PhaseTrial count
Phase 1 98
Phase 2 95
Phase 3 18
Phase 4 1

Named interventions

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

cyclophosphamide Drug
34 trials
cytarabine Drug
23 trials
busulfan Drug
19 trials
filgrastim Biological
19 trials
anti-thymocyte globulin Biological
11 trials
fludarabine phosphate Drug
11 trials
allogeneic bone marrow transplantation Procedure
10 trials
Fludarabine Drug
10 trials

US sites by state

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

New York 65 trials
California 65 trials
Texas 64 trials
Massachusetts 45 trials
Illinois 40 trials
Florida 35 trials
Maryland 34 trials
North Carolina 26 trials

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

What to do with this Leukemia page

274 registered trials, 51 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 Leukemia condition card totals 274 registered trials; most-linked intervention cyclophosphamide; top US site state New York. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.