A Phase 1 interventional study of ADI-PEG 20 in Acute Myeloid Leukemia, Adult, sponsored by Polaris Group. Active, not recruiting at 3 sites in United States. Open to participants aged 18 Years to 99 Years. Per ClinicalTrials.gov, last updated 2026-10-15.
Sponsored by Polaris Group · Phase 1, Interventional, and Treatment
Pegylated arginine deiminase (ADI-PEG 20) will be combined with venetoclax and azacitidine for treatment of subjects with previously treated or untreated with high risk factor acute myeloid leukemia (AML). Venetoclax and azacitidine are front-line therapy for such patients, and ADI-PEG 20 will be added to this regimen in a phase IA/B study.
This is an open label, single arm, phase 1 trial with recommended phase 2 dose (RP2D) cohorts based on subject inclusion criteria.
Lead In: 6 patients will be enrolled to be treated with standard dose of azacitidine and venetoclax and the expected RP2D of ADI-PEG 20 (dose level 0). In case of DLT occurring in >1 patient in cycle 1, 6 additional patients will be accrued at dose level -1 of ADI-PEG 20 while keeping the doses of azacitidine and venetoclax unchanged (Dose level -1). Enrollment to cohort 1 and 2 will start after ≤1 patient out of 6 encounters DLT in cycle 1 at one of these dose levels. The 6 patients enrolled at that dose level will be counted for efficacy analysis. Cohort 1: Relapsed or refractory AML: target response 25%. Historical expectation for venetoclax and azacitidine is 15%.
Cohort 2: Newly diagnosed high risk AML: Target response 55%. Historical expectation for venetoclax and azacitidine is 40%.
Treatment may be continued for a maximum of 24 cycles or 104 doses of ADI-PEG 20 (study Week 103), whichever is reached first.
3,667 studies on the registry are indexed under Leukemia, Myeloid, Acute; 816 are open to participants now.
This study's enrollment of 38 is close to the median of 40 across 3,005 interventional studies indexed under Leukemia, Myeloid, Acute.
Browse Leukemia, Myeloid, Acute studies →Polaris Group is the lead sponsor of 20 studies on the registry; 2 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Adequate liver function
Exclusion Criteria:
Prior treatments as follows:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
Relapsed and refractory
Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Life expectancy
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Creatinine clearance (CrCl)
How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Bilirubin
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ALT and AST (liver enzymes)
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Previously treated AML based on the revised revised 2022 WHO criteria with age at least 18 years.
Drug: ADI-PEG 20
Untreated AML per 2022 WHO criteria with high-risk features and not a candidate for intensive chemotherapy because of age 60 years or older, age-related comorbidities, cardiac disease, prior anthracycline use, high probability of treatment-related mortality, or otherwise would not benefit from intensive chemotherapy treatment.
Drug: ADI-PEG 20
ADI-PEG 20 in combination with venetoclax and azacitidine
Also known as: Venetoclax, Azacitidine
Determine the RP2D of ADI-PEG 20 in combination with venetoclax and azacitidine, per the number of subjects with treatment-related adverse events by current CTCAE
Time frame: 6 months
Determine preliminary evidence of tumor activity, per the revised 2017 European LeukemiaNet criteria
Time frame: 2 years
Determine the peripheral blood arginine levels of ADI-PEG 20 in combination with venetoclax and azacitidine
Time frame: 2 years
Determine the peripheral blood citrulline levels of ADI-PEG 20 in combination with venetoclax and azacitidine
Time frame: 2 years
Determine the anti-drug antibodies of ADI-PEG 20 in combination with venetoclax and azacitidine
Time frame: 2 years
Plan to share: No
No publications or documents are linked to this record.
Started Apr 2022 (actual). Primary completion is estimated for Jan 2027, 57 months after the start.
Of 183 industry-sponsored phase 1 interventional studies under Leukemia, Myeloid, Acute, half reached primary completion within 40 months of starting (the median), counting those still running; a quarter within 29 and three quarters within 62. This study's planned 57 months is above that.
Counting every sponsor, half of 488 studies reached it within 49 months; a quarter within 31 and three quarters within 76.
Since we started tracking on Sep 25, 2026, the dates moved once, on Oct 15, 2026: primary completion May 2026 → Jan 2027 and completion Dec 2026 → Jan 2027.
Earlier changes are on the record history on ClinicalTrials.gov ↗
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is active, not recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Pegargiminase
Polaris Group