Low Dose Daunorubicin in Pediatric Relapsed/Refractory Acute Leukemia

NCT ID: NCT04562792

Last Updated: 2023-06-28

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE2
• Total Enrollment: 1 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2020-05-08
• Study Completion Date: 2022-06-30

Brief Summary

In this pilot study, eligible pediatric patients will be treated with 5 consecutive days of low dose daunorubicin. All patients who receive low dose daunorubicin will be evaluated daily for potential toxicity during those 5 days. Once the patient has received 5 doses of daunorubicin, subsequent therapy will be at the discretion of the primary oncology team.

Detailed Description

Cancer remains the number one cause of non-accidental death in children with leukemia being the most common type of childhood cancer. Although cure rates for pediatric leukemia have greatly improved over the last few years, relapsed disease still carries a poor prognosis. Outcomes for children with multiply relapsed leukemia are dismal ranging from a remission rate of 25% in AML after 2 relapses falling to 17% after 3 or more relapses and 44% in ALL after 2 relapses and 27% after 3 or more relapses.

Leukemia stem cells that are resistant to chemotherapy primarily contribute to treatment failure and targeting these cells remains a challenge. Anthracyclines such as daunorubicin and doxorubicin have been the mainstays of childhood leukemia therapy for over 50 years. Prior investigations found that very low doses, significantly less than traditionally given, of doxorubicin and daunorubicin inhibit the interaction of Akt and beta catenin pathways which is known to drive the development of leukemia stem cells and chemoresistance. Mice models showed that treatment with these very low dose anthracyclines does not suppress the immune system but rather expands cancer targeting T cells while inhibiting populations known to help cancer cells evade the immune system. In addition, targeted treatment reduced immune checkpoint expression, a known cause of resistance, on leukemia stem cells, thus further sensitizing them to cytotoxic T cells. Standard doses of anthracyclines suppress hematopoiesis and in turn the immune system and thus do not permit the expression of these immunologic benefits.

Patients with relapsed and/or refractory acute lymphoblastic leukemia or acute myeloid leukemia, ages 1-21 years, will be approached to participate in this study. These patients must have pathologically confirmed ALL or AML, whose disease is refractory to two induction therapeutic attempts, or who are in 2nd or greater relapse, or who are in 1st relapse or refractory to a single therapeutic attempt but are unable to receive intensive therapy due to other comorbidities. Patients will receive daunorubicin at 6.75mg/m2 daily for 5 consecutive days for a total dose of 33.75mg/m2.

The primary objective of this study is to assess the feasibility and tolerability of low dose daunorubicin. Another objective of the study is to validate if T cell based immune responses against chemoresistant leukemia stem cells are stimulated at these lower doses of daunorubicin, in hopes to provide preliminary pediatric data for further research with the hypothesis being that targeted anthracycline treatment does in fact stimulate T cell based immune responses against chemoresistant leukemia stem cells. Samples will be analyzed by flow cytometry for stem cell and immune markers. The third primary objective is to identify pro vs anti-cancer cellular immune responses of targeted anthracycline treatment in these patients. The mechanism of low dose DNR treatment on activating immunogenic cell death (ICD) will be investigated by determining relative levels of damage-associated molecular patterns. The tumorigenic capacity of resistant populations such as LSCs expressing high levels of immune checkpoints will be tested. The secondary objective of this study is to evaluate the pharmacokinetic parameters of low dose daunorubicin in children with relapsed/refractory AML and ALL. Blood samples for evaluation of low dose daunorubicin pharmacokinetics (area under the time concentration curve, maximum concentration, elimination half-life, clearance) will be drawn prior to dosing and 5min, 20min, 40min, 1hr, 2hrs, 4hrs, 8hrs, and 24hrs only after the first day of dosing.

Once the patient has received 5 doses of daunorubicin, subsequent therapy will be at the discretion of the primary oncology team.

Conditions

Relapsed Pediatric ALL; Relapsed Pediatric AML; Refractory Acute Myeloid Leukemia; Refractory Acute Lymphoblastic Leukemia

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Patients with relapsed/refractory ALL and AML

Patients in this arm will receive daunorubicin 6.75mg/m2 daily for 5 consecutive days.

Group Type: EXPERIMENTAL

Daunorubicin

Intervention Type: DRUG

Eligible patients with relapsed and/or refractory acute leukemia will receive daunorubicin 6.75mg/m2 daily for 5 consecutive days.

Interventions

Daunorubicin

Eligible patients with relapsed and/or refractory acute leukemia will receive daunorubicin 6.75mg/m2 daily for 5 consecutive days.

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• Patients with pathologically confirmed ALL or AML, whose disease is refractory to two induction therapeutic attempts, or who are in 2nd or greater relapse, or who are in 1st relapse or refractory to a single therapeutic attempt but are unable to receive intensive therapy at the time of consent.
• All prior upfront therapies including bone marrow transplant are acceptable. Pulse steroids (of 5 days duration or less in the prior month) administered as part of a routine maintenance therapy are acceptable.
• Age 1 to 21 years of age, inclusive
• Established central catheter IV access

Exclusion Criteria

• Females who are known to be pregnant or lactating
• Any Grade 3 or higher Cardiac Disorder per CTCAE version 5
• Patients with echocardiographic evidence of cardiomyopathy (shortening fraction <27% or ejection fraction <50%)
• Uncontrolled sepsis
• Absolute Blast Count >50 x10(3)/mcL at enrollment or on day 1 of study
• Direct hyperbilirubinemia >5mg/dL
• Grade 3 or higher anaphylaxis to daunorubicin
• Non-English speaking
• Patients, who in the opinion of the PI, are unable to tolerate any study-specific procedures
• Patients who have received cyclosporine, tacrolimus or other agents to prevent or treat graft-vs-host disease post bone marrow transplant in the last 14 days
• Concurrent investigational drugs or other chemotherapeutic agents (excluding hydroxyurea), immunotherapies or biosimilars during the 5 days of daunorubicin.
• Prior cumulative doses of anthracyclines will not be an exclusion regardless of the total cumulative dose previously received.

• Minimum Eligible Age: 1 Year
• Maximum Eligible Age: 21 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Children's Mercy Hospital Kansas City

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Chandni Dargan, MD

Role: PRINCIPAL_INVESTIGATOR

Children's Mercy Hospital Kansas City

Locations

Children's Mercy Hospital

Kansas City, Missouri, United States

Countries

United States

References

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Provided Documents

Document Type: Study Protocol

View Document

Other Identifiers

STUDY00001114

Identifier Type: -

Identifier Source: org_study_id