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OncoMatch/Clinical Trials/NCT04687176

Frontline Oral Arsenic Trioxide for APL

Is NCT04687176 recruiting? Yes, currently enrolling (Jun 2026). This Phase 2 trial studies Oral Arsenic Trioxide Formulation for acute promyelocytic leukemia.

Phase 2RecruitingThe University of Hong KongNCT04687176Data as of Jun 2026Location: Hong Kong · Singapore

Treatment: Oral Arsenic Trioxide FormulationThe investigators have formulated an oral preparation of arsenic trioxide (oral-ATO), and shown that it is efficacious for APL in R1, inducing CR2 in more than 90% of patients \[8,9\]. Furthermore, in an effort to prevent relapse, the investigators have moved oral-ATO forward to the maintenance of CR1. This strategy results in favorable overall-survival (OS) and leukemia-free-survival (LFS) \[10\], implying that prolonged treatment with oral-ATO may prevent relapses. Current protocols have incorporated i.v.-ATO in the treatment of newly-diagnosed APL \[11-15\]. For regimens comprising oral-ATO, ATRA and chemotherapy, 5-year OS in excess of 90% is achieved \[11-15\]. The investigators have also published long-term data showing the use of oral-ATO is highly effective and safe in the relapsed and frontline settings \[16,17\]. In this study, the investigators evaluate the use of oral-ATO and ATRA based induction regimens in newly diagnosed patients with APL with no of minimal chemotherapy in a prospective multicentre phase 2 study.

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Extracted eligibility criteria

Treatments studied

Other

Oral Arsenic Trioxide Formulation

Cancer type

Acute Myeloid Leukemia

Biomarker criteria

Required: RARA translocation

t(15;17)(q24;q21) or AML with variant RARA translocation

Performance status

ECOG 0–2(Ambulatory, capable of self-care)

Prior therapy

No prior treatment (treatment-naive required)
Max 0 prior lines

Lab requirements

Kidney function

Glomerular filtration rate (GRF) by Cockcroft-Gault formula or eGFR (MDRD) of less than 30mL/min in adults (aged ≥ 18) or Creatinine clearance < 50ml/min/1.73m2 in paediatric and adolescent patients (Age ≤ 17) [excluded]

Liver function

Significant liver function derangement (Bilirubin > 3 times upper limit normal and/or ALT > 5 times upper limit of normal) [excluded]

Cardiac function

Decompensated heart failure with left-ventricular ejection fraction of less than 40% and global hypokinesia on echocardiogram. Prolonged corrected QT interval (QTc) ≥ 500ms, in the absence of electrolyte disturbances and medications known to prolong QTc [excluded]

Decompensated heart failure with left-ventricular ejection fraction of less than 40% and global hypokinesia on echocardiogram. Prolonged corrected QT interval (QTc) ≥ 500ms, in the absence of electrolyte disturbances and medications known to prolong QTc. Significant liver function derangement (Bilirubin > 3 times upper limit normal and/or ALT > 5 times upper limit of normal). Glomerular filtration rate (GRF) by Cockcroft-Gault formula or eGFR (MDRD) of less than 30mL/min in adults (aged ≥ 18) or Creatinine clearance < 50ml/min/1.73m2 in paediatric and adolescent patients (Age ≤ 17)

Structured fields extracted by AI. May contain errors — verify against the official protocol.

Frequently asked questions

Is NCT04687176 currently recruiting?

Yes, this trial is currently recruiting patients.

Can patients have received prior systemic therapy?

No. This trial requires treatment-naive patients — prior systemic therapy is an exclusion criterion.

Does this trial require RARA?

Yes, RARA translocation is a required biomarker for enrollment.

Could you qualify for this trial?

Enter your biomarker results to see how this trial's eligibility criteria match your specific cancer profile.

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