Phase 1 Leukaemia Trial, Recruiting NCT06498973 Sponsor: City of Hope Medical Center Condition: Leukaemia
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Phase 1 Leukaemia Trial, Recruiting

NCT06498973
Recruiting Phase 1

Who may be able to join

AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI

Who might be able to join this trial:

  • The person must be between 18 and 75 years old.
  • The person must have a diagnosis of acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) that is considered high-risk based on standard medical scoring systems, or have signs of active or residual disease at the time of a stem cell transplant.
  • The person must be either preparing for their first or second donor stem cell transplant (allogeneic HCT), or must have already had one for AML or MDS.
  • The person's cancer cells must have tested positive for a specific protein called CD123, based on blood or bone marrow testing done before the transplant.
  • The person must be well enough to carry out basic daily activities (this is measured using a standard medical scale called ECOG, with a score of 2 or lower).
  • Any type of donor or transplant method is allowed (for example, matched or mismatched donors, related or unrelated donors, different sources of stem cells).
  • Any preparation treatment or anti-rejection medication used around the transplant is allowed.
  • Previous treatment targeting CD123 is allowed, as long as the disease did not get worse while on that treatment.
  • The person must agree to provide a stored tissue sample from a previous biopsy, or an exception may be granted by the lead researcher if no sample is available.
  • The person must give written consent to take part in the trial.
  • People of childbearing potential must agree to use effective contraception or abstain from heterosexual activity during the study and for at least 6 months after the last treatment dose.
  • For the maintenance treatment phase specifically, the person must show either complete remission or minimal remaining disease on a bone marrow test done on day 30 after transplant.
  • For the maintenance treatment phase, the person's body must have fully accepted the transplanted cells, shown by stable blood counts meeting specific thresholds for at least several days.
  • For the maintenance treatment phase, the person must have blood counts, liver function, kidney function, and protein levels within acceptable ranges, based on tests taken within 7 days of starting treatment (blood transfusions to help reach required blood count levels are allowed).
  • For the maintenance treatment phase, the person must not have active graft-versus-host disease (GVHD), though a low dose of the steroid prednisone (10 mg per day or less) is allowed.
  • For the maintenance treatment phase, women who could become pregnant must have a negative pregnancy test within 7 days of starting treatment.
  • For the maintenance treatment phase, the person must not have received any other experimental treatment within 14 days before starting.
  • For the maintenance treatment phase, any side effects from previous treatments must be mild and well managed (with exceptions for hair loss, nausea, and fatigue).

Who may not be able to join:

  • People who have had a significant allergic reaction to medicines similar to the study drugs (tagraxofusp or azacitidine).
  • Women who are pregnant or breastfeeding.
  • People with another active cancer, or a history of cancer within the past 2 years that has a meaningful chance of returning — though certain low-risk conditions such as non-melanoma skin cancer, carcinoma in situ, cervical intraepithelial neoplasia, or contained prostate cancer with no signs of progression may still be eligible.
  • People with serious heart problems, such as severe heart failure, uncontrolled chest pain, a heart attack or stroke within the past 6 months, uncontrolled high blood pressure, or a significant heart rhythm problem not controlled by medication.
  • People with serious, uncontrolled lung disease (such as COPD or pulmonary hypertension) that the doctor believes would create a significant risk during the study.
  • People with known or suspected disease affecting the brain or spinal cord (CNS disease).
  • People with active hepatitis B, hepatitis C, or HIV infection.
  • People with any other serious or uncontrolled condition — including uncontrolled infection, a blood clotting disorder, or mental health or personal circumstances — that the doctor believes would make participation unsafe or very difficult.
  • People who, in the doctor's judgment, are unlikely to be able to follow all study procedures.

Important: Always verify eligibility with the trial site directly before applying.

Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.

This is a simplified plain English summary of the eligibility criteria. Full criteria are set by the trial investigators and may include additional requirements not shown here. Never self-exclude from a trial based on this summary. Contact the trial site directly to confirm your eligibility.
Last synced 16 July 2026
Phase 1: approximately ~10% of drugs entering this phase reach regulatory approval, based on published industry-wide historical data. This is not specific to this trial.
Phase success rates shown are historical industry-wide averages based on published data. They are not a prediction for this specific trial or your individual situation.

Contact this trial

Principal Investigator: Monzr M. Z Al Malki, MD, City of Hope Medical Center

Phone: 626-407-1957

Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.

GP referral letter

Print a one-page summary to share with your doctor.

Trial details

Status
Recruiting
Phase
Phase 1
Registry
ClinicalTrials.gov
Start date
28 January 2025
Est. completion
25 April 2027

Where this trial is recruiting

🇺🇸 United States

Primary endpoints

Incidence of adverse events (AEs); Dose limiting toxicities (DLT); Percent of patients completing at least 3 cycles at assigned dose level

Can't join this trial?

Expanded access pathways

If this trial is not available to you, other access pathways may exist. In Australia, the TGA Special Access Scheme allows access to unapproved therapeutic goods for individual patients.

TGA Special Access Scheme information

Find other recruiting trials on ClinicalTrials.gov

Data last synced from ClinicalTrials.gov: 16 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.

Trial recruitment status can change without notice between our nightly data updates. Always contact the trial site directly to confirm current recruitment status before making any decisions or travel arrangements.

View original record on ClinicalTrials.gov