Study of Fosciclopirox in Patients With Relapsed/Refractory Acute Myeloid Leukemia

  • STATUS
    Recruiting
  • End date
    Mar 14, 2024
  • participants needed
    28
  • sponsor
    CicloMed LLC
Updated on 14 June 2022

Summary

This will be an open-label, Phase 1B/2A, study to characterize the efficacy, safety, pharmacokinetics, and pharmacodynamics of fosciclopirox administered alone and in combination with cytarabine in patients with R/R AML with up to two cohorts studied to confirm the efficacy (or futility) of fosciclopirox on the endpoint of disease response.

Initially, 14 evaluable patients will be enrolled in Cohort 1a. If disease response to fosciclopirox alone IS observed in at least 4 of 14 patients, an additional 14 patients will be enrolled in Cohort 1b. If disease response to fosciclopirox alone IS NOT observed in at least 4 of 14 patients in Cohort 1a, based on a review of all available study data, the study may be terminated OR a Cohort 2a may be initiated using the combination of fosciclopirox and cytarabine. If disease response to fosciclopirox in combination with cytarabine IS observed in at least 4 of 14 patients in Cohort 2a, an additional 14 patients will be enrolled in Cohort 2b. If disease response to fosciclopirox in combination with cytarabine IS NOT observed in at least 4 of 14 patients in the Cohort 2a, the study will be stopped for futility.

Description

This will be an open-label, Phase 1B/2A, study to characterize the efficacy, safety, PK, and pharmacodynamics of fosciclopirox administered alone and in combination with cytarabine in patients with R/R AML. There will be up to two cohorts used to confirm the efficacy (or futility) of fosciclopirox on the endpoint of disease response.

Initially, 14 patients will be enrolled in Cohort 1a. If disease response to fosciclopirox alone IS observed in at least 4 of 14 patients, an additional 14 patients will be enrolled in Cohort 1b. If disease response to fosciclopirox alone IS NOT observed in at least 4 of 14 patients in the initial Cohort 1a, based on a review of all available data study data, the study may be terminated OR a second cohort (Cohort 2a) may be initiated using the combination of fosciclopirox and cytarabine. If disease response to fosciclopirox in combination with cytarabine IS observed in at least 4 of 14 patients in Cohort 2a, an additional 14 patients will be enrolled in Cohort 2b. If disease response to fosciclopirox in combination with cytarabine IS NOT observed in at least 4 of 14 patients in Cohort 2a, the study will be stopped for futility.

If both Cohorts 1a and 2a are initiated, the minimum patient number will be 28 (i.e., treatment with fosciclopirox alone and in combination with cytarabine are futile). The maximum number of patients potentially evaluated is 42 (i.e., the first treatment is futile based upon observations in 14 patients (Cohort 1a), but treatment in Cohort 2a evaluated is positive [14 patients], and Cohort 2b [14 patients] is completed).

Patients in Cohort 1a will initially be treated with fosciclopirox as a single agent. Patients who respond to this treatment, as defined below, may continue to receive treatment cycles of fosciclopirox alone until evidence of disease progression. Patients who do not respond to fosciclopirox alone, as defined below, may be switched to treatment with the combination of fosciclopirox and cytarabine. Patients who respond to the combination treatment may continue to receive treatment cycles of fosciclopirox in combination with cytarabine until evidence of disease progression. Patients who do not respond to the combination of fosciclopirox and cytarabine will be discontinued from the study.

Patients enrolled in Cohort 2a (if initiated) will initially be treated with fosciclopirox in combination with cytarabine. The first patient to receive this combination will be observed during Cycle 1 (21 days) and for a further 7 days (if they do not continue to Cycle 2) before any further patients are accrued to the combination arm. As above, patients who respond to the combination treatment may continue to receive treatment cycles until evidence of disease progression, and patients who do not respond will be discontinued from the study.

Fosciclopirox will be administered as 900 mg/m2 once daily as a 20-minute intravenous infusion on Days 1 to 5 (D1-D5) of each 21-day treatment cycle (rest days D6-D21). When added to fosciclopirox therapy, cytarabine will be administered as 1 gm/m2 once daily on D1 D5 of each 21-day treatment cycle (rest days D6-D21).

Details
Condition Refractory Acute Myeloid Leukemia, Recurrent Acute Myeloid Leukemia
Treatment Fosciclopirox, Fosciclopirox + Cytarabine
Clinical Study IdentifierNCT04956042
SponsorCicloMed LLC
Last Modified on14 June 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Patient is male or female aged ≥18 years
Patient provided signed and dated informed consent prior to initiation of any study procedures
Patient has relapsed AML after complete remission of any duration as evidenced by presence of neoplastic blasts in the bone marrow confirmed by flow cytometry OR has refractory AML, defined as primary refractory to at least 2 cycles of induction therapy
No other therapy exists or patient has received all standard therapies that would be potentially curative or might provide significant benefit
Patient has an Eastern Cooperative Oncology Group performance status (ECOG PS) of 0, 1, or 2
Patient has a predicted life expectancy of ≥3 months
Patient has a total white blood cell count of count ≤ 25.0 x 10^9/L at screening and on C1D1. (Patient may have received hydroxyurea prior to the screening sample for elevated WBC but must have discontinued the therapy at least 72 hours prior to screening, and not be treated with hydroxyurea after the screening sample has been taken)
Patient has adequate renal function (creatinine ≤2 × the upper limit of the normal range (ULN) and an estimated glomerular filtration rate (eGFR) of >30 mL/min/1.73 m^2)
Patient has adequate hepatic function, as evidenced by a total bilirubin ≤2 × ULN, aspartate aminotransferase (AST) ≤5 × ULN and /or alanine aminotransferase (ALT)
≤5 × ULN, unless due to leukemia involvement in the judgement of the Principal
Investigator in consultation with the Medical Monitor
Patient has adequate cardiac function with an ejection fraction (EF) ≥45%, as assessed by multi-gated acquisition (MUGA) or ultrasound/echocardiography (ECHO) and corrected QT interval by Fridericia's correction formula (QTcF) <450 msec for males and <470 msec for females. The eligibility of patients with ventricular pacemakers for whom the QT interval may not be accurately measurable will be determined on a case-by-case basis by the Sponsor in consultation with the Medical Monitor
Patient and his/her partner agree to use adequate contraception after providing written informed consent through 3 months after the last dose of fosciclopirox, as
Patient is willing and able to participate in the study and comply with all study
requirements
follows
For women: Negative pregnancy test during Screening and at Day 1 of each treatment cycle and compliant with a medically-approved contraceptive regimen during, and for 3 months after, the Treatment period or documented to be surgically sterile or postmenopausal
For men: Compliant with a medically-approved contraceptive regimen during, and for 3 months after, the Treatment period or documented to be surgically sterile. Men whose sexual partners are of child-bearing potential must agree to use 2 methods of contraception prior to study entry, during the study, and for 3 months after the Treatment period. Men must also agree not to donate sperm during the Treatment period and for 3 months after the Treatment period
Prior allogeneic stem cell transplant is allowed as long as patient is more than 100 days post-transplant and has no active graft versus host disease

Exclusion Criteria

Patients who meet any of the following exclusion criteria are not to be enrolled in this
study
Patient has known chronic active liver disease or evidence of acute or chronic
Hepatitis B Virus (HBV) or Hepatitis C (HCV)
Patient has known diagnosis of human immunodeficiency virus (HIV) infection. Testing
is not required in absence of clinical suspicion
Patient has another active malignancy
Patients has any serious and/or uncontrolled concurrent medical conditions (e.g
Patient has acute promyelocytic leukemia (APL) or Ph+ AML
uncontrolled infection, uncontrolled diabetes) or psychiatric illness that could, in
Patient has total white blood cell count >25.0 x 10^9/L at C1D1
the investigator's opinion, cause unacceptable safety risks or potentially interfere
Patient has clinically significant cardiac disease
with the completion of the treatment according to the protocol
Patient has received any live viral vaccine used for prevention of infectious diseases
within 4 weeks prior to Baseline
If female, patient is pregnant or breast-feeding
Patient is taking warfarin
Patient has known allergy or hypersensitivity to any component of fosciclopirox
Patient is taking any iron replacement therapy administered IV, intramuscularly, or
orally due to the potential for loss of anticancer activity due to drug and/or
Patient is taking Hydrea (hydroxyurea) within 72 hours prior to the screening visit
metabolites chelating iron
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