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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04337138
Other study ID # B1761033
Secondary ID
Status Completed
Phase
First received
Last updated
Start date April 7, 2020
Est. completion date July 31, 2020

Study information

Verified date July 2021
Source Pfizer
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The aim of this observational study is to describe treatment patterns and effectiveness outcomes in a sample of oncology patients treated for AML with Mylotarg through up to two additional relapsed/refractory (R/R)-based lines of therapy (through third-line therapy). The study will use United States oncology electronic medical record (EMR) data. All study data are secondary data and will have been collected retrospectively from existing clinical data originally collected as part of routine care.


Recruitment information / eligibility

Status Completed
Enrollment 32
Est. completion date July 31, 2020
Est. primary completion date July 31, 2020
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Confirmed diagnosis of acute myeloid leukemia (AML) on or after 01 December 2014 through Clinical Research Nurse (CRN) review of provider documentation of AML diagnosis in the medical record; - Receipt of Mylotarg at any point during first three lines of therapy following initial AML diagnosis; - Age greater than or equal to 18 years at initial diagnosis of AML. Exclusion Criteria: - Record of 1 or more of the following confounding diagnoses at any point before or after AML diagnosis: Acute lymphoblastic leukemia; acute promyelocytic leukemia, aggressive systemic mastocytosis; hypereosinophilic syndrome and/or chronic eosinophilic leukemia; dermatofibrosarcoma protuberans; gastrointestinal stromal tumors.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Gemtuzumab Ozogamicin
Gemtuzumab Ozogamicin (Mylotarg) administered in any form or combination

Locations

Country Name City State
United States Pfizer Investigational Site New York New York

Sponsors (1)

Lead Sponsor Collaborator
Pfizer

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Other Duration of Therapy Duration of therapy was time from the initiation of Mylotarg to the last date of Mylotarg therapy, regardless of line of therapy (duration could continue into subsequent lines of therapy), study end date, or death, whichever came first. From the initiation of Mylotarg to the last date of Mylotarg therapy (maximum duration of 3 years)
Primary Real-World Event-Free Survival (rwEFS) rwEFS defined as time from treatment initiation date (for first line of Mylotarg-containing therapy) to date of treatment failure (TF), relapse from complete response (CR) or better, death from any cause, whichever came first. TF defined as failure to achieve CR or better following up to 3 cycles of Mylotarg. Time origin for rwEFS was start of Mylotarg in first line of therapy in which it was used. Terminal event for analysis of rwEFS was earlier of treatment failure, relapse from CR or better, death. CR is defined as having less than (<) 5% blasts in the bone marrow and 0% blasts in the peripheral blood. Real-world setting signifies participants treated in clinical practice and in a non-trial setting. From treatment initiation date to date of TF, relapse from CR or better, death from any cause, whichever came first (maximum duration of 3 years)
Primary Real-World Relapse Free Survival (rwRFS) rwRFS was defined as the time from the treatment initiation date (during the first line of Mylotarg-containing therapy) to the date of a relapse event, or death from any cause, whichever came first. The time origin for rwRFS was the start of Mylotarg in the first line of therapy in which it was used. Real-world setting signifies participants treated in clinical practice and in a non-trial setting. From the treatment initiation date (during the first line of Mylotarg-containing therapy) to the date of a relapse event, or death from any cause, whichever came first (maximum duration of 3 years)
Primary Real-World Overall Survival (rwOS) rwOS was defined as the time from the start of the first Mylotarg use till the date of death. Participants who were not indicated to be deceased in clinical records or Social Security Disability Insurance (SSDI) records were censored for rwOS analysis as of the later of 1) the latest date known alive within the clinical record, 2) 4 months prior to the date of most recent SSDI update. Real-world setting signifies participants treated in clinical practice and in a non-trial setting. From the start of the first Mylotarg use till death (maximum duration of 3 years)
Primary Number of Participants With First Positive Response First positive response was assessed by physician as first response from any of the following: CR, partial response (PR), stable disease (SD) and progressive disease (PD). CR is defined as having < 5% blasts in the bone marrow and 0% blasts in the peripheral blood. PR is defined as having 5 to 25% bone marrow blasts with > 50% reduction in blasts and peripheral blood count recovery. SD is defined as having no change in bone marrow blasts. PD is defined as having relapse following response. Participant for whom record did not indicate one of these classification classed as not evaluable (NE). From the first qualifying Mylotarg-containing line of therapy to the end of the third line of therapy or the end of record, whichever occurs first (maximum duration of 3 years)
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