RECRUITINGPhase 3INTERVENTIONAL

Pivotal Open-label Phase 3 Clinical Study of QTX-2101 in Adult Patients With Acute Promyelocytic Leukemia

A Pivotal Open-label Phase 3 Clinical Study Evaluating the Efficacy and Safety of QTX-2101 in Combination With All-trans Retinoic Acid in Newly Diagnosed, Low-risk Acute Promyelocytic Leukemia

About This Trial

This Phase 3 study in adult participants with newly diagnosed low-risk APL will evaluate the efficacy, safety, and PK of an oral capsule formulation of ATO, in combination with ATRA.

Who May Be Eligible (Plain English)

Who May Qualify: 1. willing to sign a consent form 2. Participants must be between 18 and under 71 years of age 3. Participants must have a confirmed diagnosis of APL proven by standard genetic testing (t(15;17) or PML-RARA) 4. Participants must be classified as low- or intermediate-risk APL 5. Participants must be willing and able to comply with the scheduled study visits, treatment plans, laboratory tests, contraception guidance, and other procedures Exclusion Criteria 1. Participants who have significant heart rhythm problems including long QT syndrome, serious arrhythmias, very slow heart rate, or prolonged QTc on ECG 2. Participants who have central nervous system leukemia 3. Participants having serious ongoing medical conditions or infections including uncontrolled infections, severe organ disease, or conditions that make study participation unsafe 4. Participants who are pregnant, breastfeeding, or unwilling to use contraception 5. Participants who are unable to safely take study medication, including severe neuropathy, inability to swallow oral medication, malabsorption issues, or known allergy to ATO or ATRA Always talk to your doctor about whether this trial is right for you.

Original Eligibility Criteria

View original clinical language

Inclusion Criteria: 1. Informed Consent 2. Participants must be between 18 and under 71 years of age 3. Participants must have a confirmed diagnosis of APL proven by standard genetic testing (t(15;17) or PML-RARA) 4. Participants must be classified as low- or intermediate-risk APL 5. Participants must be willing and able to comply with the scheduled study visits, treatment plans, laboratory tests, contraception guidance, and other procedures Exclusion Criteria 1. Participants who have significant heart rhythm problems including long QT syndrome, serious arrhythmias, very slow heart rate, or prolonged QTc on ECG 2. Participants who have central nervous system leukemia 3. Participants having serious ongoing medical conditions or infections including uncontrolled infections, severe organ disease, or conditions that make study participation unsafe 4. Participants who are pregnant, breastfeeding, or unwilling to use contraception 5. Participants who are unable to safely take study medication, including severe neuropathy, inability to swallow oral medication, malabsorption issues, or known allergy to ATO or ATRA

Treatments Being Tested

DRUG

QTX-2101 + ATRA

The experimental regimen consists of IV ATO administered once daily during induction, given continuously, for up to a maximum of 60 days. During consolidation, QTX-2101 is administered once daily, per investigator's protocol. ATRA is administered orally in two divided daily doses during induction, given continuously until bone marrow remission (not exceeding 60 days). During consolidation, ATRA is taken orally in two divided daily doses following a 2-weeks-on / 2-weeks-off schedule within each 8-week cycle.

DRUG

IV arsenic trioxide (ATO) + ATRA

The comparator regimen consists of IV ATO administered once daily during induction, given continuously, for up to a maximum of 60 days. During consolidation, IV ATO is administered once daily, per investigator's protocol. ATRA is administered orally in two divided daily doses during induction, given continuously until bone marrow remission (not exceeding 60 days). During consolidation, ATRA is taken orally in two divided daily doses following a 2-weeks-on / 2-weeks-off schedule within each 8-week cycle.

Locations (2)

Quetzal Site 1

Duarte, California, United States

Quetzal Site 2

The Bronx, New York, United States