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Vincristine Sulfate Liposome in Treating Patients With Relapsed or Refractory Acute Myeloid Leukemia

An Open Label, Phase II Study of the Feasibility and Efficacy of Vincristine Sulfate Liposome Injection in Patients With Relapsed or Refractory Acute Myeloid Leukemia (AML)

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02337478
Enrollment
5
Registered
2015-01-13
Start date
2015-06-05
Completion date
2017-09-04
Last updated
2019-08-14

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

Conditions

Recurrent Adult Acute Myeloid Leukemia

Brief summary

This pilot phase II trial studies how well vincristine sulfate liposome works in treating patients with acute myeloid leukemia that has returned after a period of improvement or has not responded to previous treatment. Drugs used in chemotherapy, such as vincristine sulfate liposome, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Liposomal encapsulation prolongs bioavailability (proportion of drug that enters the circulation when introduced into the body) of vincristine sulfate, and may increase its delivery to cancer cells with fewer side effects.

Detailed description

PRIMARY OBJECTIVES: I. To determine the feasibility of administering vincristine sulfate liposome injection (VSLI) to relapsed or refractory acute myeloid leukemia (AML) patients having failed, refused or not a candidate for at least one chemotherapy salvage regimen. II. To observe the hematologic improvement-rate of VSLI in this patient population. SECONDARY OBJECTIVES: I. To observe the overall survival of patients treated with VSLI. II. To observe the response rate (complete remission \[CR\], complete remission with incomplete count recovery \[CRi\], partial response \[PR\], and morphologic leukemia free state \[MLFS\]) of VSLI in this patient population. OUTLINE: Patients receive vincristine sulfate liposome via injection on days 1, 8, 15, and 22. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up for up to 6 months.

Interventions

Given via injection

OTHERLaboratory Biomarker Analysis

Correlative studies

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Spectrum Pharmaceuticals, Inc
CollaboratorINDUSTRY
Wake Forest University Health Sciences
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 must have histologically or cytologically documented relapsed and/or refractory acute myeloid leukemia * Patients must be ineligible for, refused or having failed at least one previous salvage regimen * Eastern Cooperative Oncology Group (ECOG) performance status of =\< 3 * Women of child-bearing potential (i.e., women who are pre-menopausal or not surgically sterile) must use accepted contraceptive methods (abstinence, intrauterine device \[IUD\], oral contraceptive or double barrier device), and must have a negative serum or urine pregnancy test within 1 week prior to treatment initiation * Fertile men must practice effective contraceptive methods during the study period, unless documentation of infertility exists * Mentally competent, ability to understand and willingness to sign the informed consent form * No serious medical illness that would potentially increase patients' risk for toxicity * No active central nervous system (CNS) disease * No active uncontrolled bleeding/bleeding diathesis * No condition or abnormality which may, in the opinion of the investigator, compromise the safety of the patient * No unwillingness or inability to follow protocol requirements * No evidence of ongoing, uncontrolled infection * No requirement for immediate palliative treatment of any kind including surgery * No option for immediate bone marrow transplant unless patient refuses this therapy * Aspartate aminotransferase (AST)/serum glutamic oxaloacetic transaminase (SGOT) =\< 3 x upper normal limit (UNL), alanine aminotransferase (ALT)/serum glutamate pyruvate transaminase (SGPT) =\< 3 x UNL * Bilirubin =\< 3 x UNL * Glomerular filtration rate (GFR) \> 50 ml/min/1.72 m\^2 or creatinine \< 2 g/dL

Exclusion criteria

* Serious medical illness or severe debilitating pulmonary disease that would potentially increase the patients' risk for toxicity * Patients with persistent grade 3 or higher prior vincristine (VCR) (vincristine sulfate)-related neuropathy * Patients with active central nervous system (CNS) disease * Any active uncontrolled bleeding, and any patients with a bleeding diathesis (e.g., active peptic ulcer disease) * Pregnant women, or women of child-bearing potential not using reliable means of contraception * Lactating females * Fertile men unwilling to practice contraceptive methods during the study period * Any condition or abnormality which may, in the opinion of the investigator, compromise the safety of patients * Unwilling or unable to follow protocol requirements * Evidence of ongoing, uncontrolled infection * Patients with known human immunodeficiency virus (HIV) infection * Requirement for immediate palliative treatment of any kind including surgery * Evidence of inadequate hepatic function (aspartate aminotransferase \[AST/SGOT\] =\< 3 x upper normal limit \[UNL\], alanine aminotransferase \[ALT/SGPT\] =\< 3 x UNL \[=\< 5 x ULN if liver metastases present\], bilirubin =\< 1.5 x UNL) * Evidence of inadequate renal function (creatinine \> 2 g/dL)

Design outcomes

Primary

MeasureTime frame
Number of Participants Able to Complete Two or More Courses of Therapy Regardless of Dose ModificationsUp to 56 days

Secondary

MeasureTime frameDescription
Response Rate (CR, CRi, PR, and MLFS)Up to 6 months after completion of study treatmentConfidence intervals will be calculated around the estimates of the response rate (CR, CRi, PR, and MLFS) of VSLI. Assuming a response rate of 0.1, with 39 participants, 95 percent confidence intervals with a 0.09 margin of error (0.01, 0.19) or a margin of error of 0.16 around a response rate of 0.5 will be created. (Complete remission (CR) bone marrow blasts \<5%, absence of blasts with Auer rods; absence of extramedullary disease, absolute neutrophil count \>1,000, platelet count \>100,000, independence of red cell transfusions; Complete remission with incomplete recovery (CRi) all complete remission except for residual neutropenia or thrombocytopenia; partial remission (PR), decrease of bone marrow blast to 5-25%, decrease of pre-treatment bone marrow blast by at least 50%; morphologic leukemia-free state (MLFS) Bone marrow blasts \<5%, absence of Aeur rods, absence of extramedullary disease, no hematologic recovery required).
Overall SurvivalUp to 6 months after completion of therapyKaplan-Meier estimation will be used to analyze overall survival.

Countries

United States

Participant flow

Participants by arm

ArmCount
Treatment (Vincristine Sulfate Liposome)
Patients receive vincristine sulfate liposome via injection on days 1, 8, 15, and 22. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity. Vincristine Sulfate Liposome: Given via injection Laboratory Biomarker Analysis: Correlative studies
5
Total5

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyLack of Efficacy5

Baseline characteristics

CharacteristicTreatment (Vincristine Sulfate Liposome)
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
3 Participants
Age, Categorical
Between 18 and 65 years
2 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
5 Participants
Region of Enrollment
United States
5 participants
Sex: Female, Male
Female
2 Participants
Sex: Female, Male
Male
3 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
5 / 5
other
Total, other adverse events
5 / 5
serious
Total, serious adverse events
5 / 5

Outcome results

Primary

Number of Participants Able to Complete Two or More Courses of Therapy Regardless of Dose Modifications

Time frame: Up to 56 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment (Vincristine Sulfate Liposome)Number of Participants Able to Complete Two or More Courses of Therapy Regardless of Dose Modifications0 Participants
Secondary

Overall Survival

Kaplan-Meier estimation will be used to analyze overall survival.

Time frame: Up to 6 months after completion of therapy

ArmMeasureValue (MEAN)
Treatment (Vincristine Sulfate Liposome)Overall Survival1.5 months
Secondary

Response Rate (CR, CRi, PR, and MLFS)

Confidence intervals will be calculated around the estimates of the response rate (CR, CRi, PR, and MLFS) of VSLI. Assuming a response rate of 0.1, with 39 participants, 95 percent confidence intervals with a 0.09 margin of error (0.01, 0.19) or a margin of error of 0.16 around a response rate of 0.5 will be created. (Complete remission (CR) bone marrow blasts \<5%, absence of blasts with Auer rods; absence of extramedullary disease, absolute neutrophil count \>1,000, platelet count \>100,000, independence of red cell transfusions; Complete remission with incomplete recovery (CRi) all complete remission except for residual neutropenia or thrombocytopenia; partial remission (PR), decrease of bone marrow blast to 5-25%, decrease of pre-treatment bone marrow blast by at least 50%; morphologic leukemia-free state (MLFS) Bone marrow blasts \<5%, absence of Aeur rods, absence of extramedullary disease, no hematologic recovery required).

Time frame: Up to 6 months after completion of study treatment

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Treatment (Vincristine Sulfate Liposome)Response Rate (CR, CRi, PR, and MLFS)Partial response0 Participants
Treatment (Vincristine Sulfate Liposome)Response Rate (CR, CRi, PR, and MLFS)No response5 Participants
Treatment (Vincristine Sulfate Liposome)Response Rate (CR, CRi, PR, and MLFS)Complete response0 Participants
Treatment (Vincristine Sulfate Liposome)Response Rate (CR, CRi, PR, and MLFS)Complete reponse (incomplete)0 Participants
Treatment (Vincristine Sulfate Liposome)Response Rate (CR, CRi, PR, and MLFS)Morphologic leukemia free state0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026