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Anti-Leukemia Immune Responses After Irradiation of Extramedullary Tumors

Anti-Leukemia Immune Responses After Irradiation of Extramedullary Tumors

Status
Active, not recruiting
Phases
Early Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05035706
Enrollment
10
Registered
2021-09-05
Start date
2021-06-30
Completion date
2026-04-30
Last updated
2026-03-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Myeloid Leukemia, Myeloid Leukemia, Recurrent Acute Myeloid Leukemia

Brief summary

This clinical trial assesses how the immune system responds to leukemia tumors after low dose radiation delivered as part of standard of care. The information learned in this study may help them know if adding immunotherapy (a type of treatment that uses the immune system to fight cancer) can be helpful in future leukemia patients receiving radiation.

Detailed description

PRIMARY OBJECTIVES: I. To identify changes in anti-leukemia immune responses after local radiotherapy to extramedullary sites. II. Develop an annotated biospecimen panel of extramedullary leukemia biopsies prior to and after radiotherapy to examine local immune responses using transcriptional profiling, immunofluorescence and single cell analyses. III. Define changes in the T cell receptor (TCR) clonotypes, functionality and inflammatory cytokine levels in peripheral blood leukocytes and serum. IV. Correlate changes in anti-tumor immune responses with clinic-pathological variables and patient outcomes. SECONDARY OBJECTIVES: I. To assess the overall response rate (ORR= complete response \[CR\] + partial response \[PR\]) of the extramedullary tumor treated with radiation therapy. II. To assess the CR of extramedullary tumor treated with radiation therapy. III. Determine the duration of response (DOR), event-free survival (EFS). OUTLINE: Patients undergo biopsy prior to radiation therapy and 7-14 days after radiation therapy. Patients also undergo blood sample collection prior to therapy (within 7 days of starting radiation therapy), 1 and 7 days post completion of radiation therapy. Patients' photographs of the biopsy site are taken before and at 4-6 weeks post completion of radiation, and their medical records are reviewed for up to 2 years.

Interventions

PROCEDUREBiopsy

Undergo biopsy

PROCEDUREBiospecimen Collection

Undergo blood and tissue sample collection

OTHERElectronic Health Record Review

Medical records reviewed

Photographs taken

Sponsors

M.D. Anderson Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients diagnosed with new or recurrent myeloid leukemia * Aged \>= 18 years old * Eastern Cooperative Oncology Group (ECOG) performance status \< 4 * Patient have measurable and amenable to biopsy under local anesthesia without the need for imaging directed procedure * Ability to understand and provide signed informed consent * Females must be surgically or biologically sterile or postmenopausal (amenorrhoeic for at least 12 months) or if of childbearing potential, must have a negative serum or urine pregnancy test within 72 hours before the start of the treatment. Women of childbearing potential must agree to use an adequate method of contraception during the study and until the last radiation treatment. Males must be surgically or biologically sterile or agree to use an adequate method of contraception during the study and until the last radiation treatment

Exclusion criteria

* Patients who are unwilling to participate * Patients unwilling to undergo the biopsy before or after radiotherapy

Design outcomes

Primary

MeasureTime frame
Changes in anti-leukemia immune responsesThrough study completion, an average of 1 year

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORBouthaina S Dabaja

M.D. Anderson Cancer Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 6, 2026