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

2026 data Public-data reference. official source

Refractory B Acute Lymphoblastic Leukemia

Open-data reference.

8 US clinical trials · 4 currently recruiting

Active & Recent Trials

RECRUITING Phase 1 276 participants

Inotuzumab Ozogamicin and Combination Chemotherapy in Treating Patients With Acute Lymphoblastic Leukemia

M.D. Anderson Cancer Center

NCT01371630

RECRUITING Phase 2 80 participants

Inotuzumab Ozogamicin in Treating Younger Patients With B-Lymphoblastic Lymphoma or Relapsed or Refractory CD22 Positive B Acute Lymphoblastic Leukemia

Children's Oncology Group

NCT02981628

RECRUITING Phase 2 64 participants

Inotuzumab Ozogamicin and Blinatumomab With or Without Ponatinib in Treating Patients With Newly Diagnosed, Recurrent, or Refractory CD22-Positive B-Lineage Acute Lymphoblastic Leukemia

National Cancer Institute (NCI)

NCT03739814

RECRUITING Phase 1 54 participants

Genetically Engineered Cells (Anti-CD19/CD20/CD22 CAR T-cells) for the Treatment of Relapsed or Refractory Lymphoid Malignancies

Sumithira Vasu

NCT05418088

ACTIVE NOT RECRUITING Phase 1 50 participants

Low-Intensity Chemotherapy and Venetoclax in Treating Patients With Relapsed or Refractory B- or T-Cell Acute Lymphoblastic Leukemia

M.D. Anderson Cancer Center

NCT03808610

ACTIVE NOT RECRUITING Phase 1 40 participants

Venetoclax and Vincristine in Treating Patients With Relapsed or Refractory T-cell or B-cell Acute Lymphoblastic Leukemia

ECOG-ACRIN Cancer Research Group

NCT03504644

ACTIVE NOT RECRUITING Phase 1 28 participants

Blinatumomab and Nivolumab With or Without Ipilimumab in Treating Patients With Poor-Risk Relapsed or Refractory CD19+ Precursor B-Lymphoblastic Leukemia

National Cancer Institute (NCI)

NCT02879695

COMPLETED Phase 1 7 participants

Palbociclib and Dexamethasone in Treating Participants With Relapsed or Refractory B-Cell Acute Lymphoblastic Leukemia

Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University

NCT03472573

Phase Distribution

PhaseTrial count
Early Phase 1 6
Phase 2 2

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

Reading the Refractory B Acute Lymphoblastic Leukemia Trial Landscape

ClinicalTrials.gov lists 8 US studies indexed under Refractory B Acute Lymphoblastic Leukemia, and 4 of those are currently open to recruitment — roughly 50% of the total volume on the registry. That ratio is a useful proxy for activity level: a high share of recruiting studies often signals that research interest is current and that new enrollment opportunities are appearing, while a low share typically means the field is dominated by completed or follow-up work where most participant spots have already been filled. These counts reflect the public registry only and include studies at every stage of design, so they should be read as an index of research attention rather than as a measure of treatment availability.

The phase distribution for Refractory B Acute Lymphoblastic Leukemia shows 0 late-stage studies (Phase 3 and Phase 4 combined) alongside 8 earlier-phase entries (Phase 1 through Phase 2). Phase 1 and Phase 2 studies focus on early safety signals, dosing, and preliminary effect, while Phase 3 studies are typically the larger efficacy and safety trials submitted toward regulatory review, and Phase 4 studies follow approved interventions in real-world use. A condition weighted toward later phases often reflects a mature research pipeline with several interventions already close to or past approval, whereas a heavier early-phase tilt suggests the field is still exploring new mechanisms and candidate approaches.

Top sponsor activity for Refractory B Acute Lymphoblastic Leukemia is led by M.D. Anderson Cancer Center with 2 indexed trials, alongside 5 other organizations in the top contributor list. The list on this page surfaces up to 8 of the most relevant recent and active entries, ordered with recruiting studies first so practical options are visible. All figures are derived from the public ClinicalTrials.gov dataset maintained by the National Library of Medicine and are reproduced here for reference. Inclusion of a trial, sponsor, or intervention on this page is neither an endorsement nor a recommendation — eligibility, protocol changes, and site-level status can shift frequently, so always verify current details on ClinicalTrials.gov and consult a qualified healthcare provider before acting on anything you see here.

Frequently Asked Questions

How many clinical trials are there for Refractory B Acute Lymphoblastic Leukemia?

PlainTrial tracks 8 US clinical trials for Refractory B Acute Lymphoblastic Leukemia, of which 4 are currently recruiting participants. Data sourced from ClinicalTrials.gov.

How do I find a recruiting trial for Refractory B Acute Lymphoblastic Leukemia?

Use the trial list above filtered by "Recruiting" status, or visit our trial finder at /recruiting to search by condition and state. Always discuss trial participation with your healthcare provider before enrolling.

Is this data current?

Data is sourced from ClinicalTrials.gov and reflects our most recent data pull. Trial status may have changed since then. Always verify current information at ClinicalTrials.gov before making decisions about participation.

Related

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainTrial Editorial

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from ClinicalTrials.gov (National Library of Medicine). Consult a qualified professional before making decisions based on this data.

Source: ClinicalTrials.gov (NIH/NLM) ClinicalTrials.gov AACT registry · 2024 Trial counts and statuses sourced from ClinicalTrials.gov. Sponsor counts include both industry and federal/academic sponsors.

Verify with NIH →