Clinical trial NCT04440267: Efficacy of Acute Lymphoblastic Leukemia-Based Therapy in Treating Patients With Acute Leukemia of Ambiguous Lineage
Official title: A Prospective, Single Arm, Open Label, Clinical Trial to Evaluate the Efficacy of Acute Lymphoblastic Leukemia-Based Therapy in Treating Patients With Acute Leukemia of Ambiguous Lineage
Study type: INTERVENTIONAL
Overall status: NOT_YET_RECRUITING
Phase: PHASE2
Conditions: Acute Leukemia of Ambiguous Lineage
Lead sponsor: Institute of Hematology & Blood Diseases Hospital, China
Sponsor class: OTHER
First posted: 2020-06-19
Enrollment: 50
Sex: ALL
Minimum age (years): 14
Standard ages: CHILD
ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: In this prospective, single arm, open label, clinical trial, a total of 50 acute leukemia of ambiguous lineage patients will be enrolled. Patients will receive acute lymphoblastic leukemia (ALL) -based chemotherapy and are permitted to receive allogeneic hematopoietic stem cell transplantation (HSCT) after CR . Otherwise, they will finish the consolidation chemotherapy. Patients with t(9;22) will receive chemotherapy combined with tyrosine kinase inhibitors. The purpose of current study is to evaluate the clinical efficacy of ALL-based chemotherapy，effect of genetic abnormality and minimal residual disease (MRD) on prognosis in patients with acute leukemia of ambiguous lineage.


Eligibility criteria: Inclusion Criteria:

1. Patients aged above 14 years with acute leukemia of ambiguous lineage .
2. Eastern Cooperative Oncology Group (ECOG) Performance status 2.
3. Adequate end organ function as defined by: Total bilirubin ≤ 1.5 x upper limit of normal (ULN); serum glutamic-oxaloacetic transaminase(SGOT) and serum glutamic pyruvic transaminase(SGPT) ≤ 2.5 x ULN; Creatinine ≤ 1.5 x ULN; Serum amylase and lipase ≤ 1.5 x ULN; Alkaline phosphatase ≤ 2.5 x ULN unless considered tumor related; Patients must have adequate cardiac function (ejection fraction ≥ 45 % on Multiple Gated Acquisition (MUGA) scan).
4. Patients must have the following laboratory values (≥ lower limit of normal (LLN) or corrected to within normal limits with supplements prior to the first dose of study medication.): Potassium ≥ LLN; Magnesium ≥ LLN; Phosphorus ≥ LLN
5. Patients should sign informed consent form.

Exclusion Criteria:

1. Impaired cardiac function:

   Long QT syndrome or a known family history of long QT syndrome; clinically significant resting brachycardia (\<50 beats per minute); ejection fraction \< 45 % on MUGA scan. Corrected QT (QTc) interval \> 450 msec on baseline ECG (using the QTcF formula). If QTcF interval\>450 msec and electrolytes are not within normal ranges, electrolytes should be corrected and then the patient re-screened for QTc. Myocardial infarction within 12 months prior to starting study; other clinically significant heart disease (e.g. unstable angina, congestive heart failure or uncontrolled hypertension, uncontrolled arrhythmias).
2. Other concurrent severe and/or uncontrolled medical conditions:

   Patients with another primary malignant disease, except those that do not currently require treatment; acute or chronic liver, pancreatic or severe renal disease; another severe and/or life-threatening medical disease.
3. Patients who are: (a) pregnant and (b) breast feeding.

Primary outcomes:
measure: Overall survival (OS)
timeFrame: up to 5 years
Secondary outcomes:
measure: Relapse free survival (RFS)
timeFrame: up to 5 years
measure: The complete remission (CR) rate
timeFrame: up to 2.5 years
measure: Mortality within 60 days
timeFrame: up to 60 days
Other outcomes:
measure: Chromosomal abnormalities detected by G-banding
timeFrame: Baseline
measure: Fusion genes detected by polymerase chain reaction
timeFrame: Baseline
measure: Mutations detected by next-generation sequencing
timeFrame: Baseline
measure: Minimal residual disease（MRD）
timeFrame: 1 year
Locations:
city: Tianjin
country: China
facility: HBDH
state: Tianjin
Study officials:
References: