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Study of ADI-PEG 20 in Patients With Advanced Melanoma

Phase 1/2 Study of ADI-SS PEG 20,000mw in Patients With Advanced Melanoma

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00520299
Enrollment
31
Registered
2007-08-24
Start date
2007-07-31
Completion date
2010-03-31
Last updated
2022-10-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Metastatic Melanoma, Neoplasm, Skin Cancer

Keywords

metastatic melanoma, ADI, ADI-PEG 20, ADI SS PEG 20,000mw, arginine, enzyme therapy

Brief summary

This was a phase 1/2, open-label, dose-escalation study of arginine deiminase linked via succinimidyl succinate to polyethylene glycol of 20,000 molecular weight (ADI-PEG 20) in subjects with advanced melanoma. ADI-PEG 20 was administered intramuscularly (IM) at escalating doses weekly for 9 weeks (cycle 1) or 8 weeks (subsequent cycles). The primary objectives were to the establish the safety, tolerability, and clinical efficacy of ADI-PEG 20. Secondary objectives included evaluation of the metabolic activity by \[18F\]-fluorodeoxyglucose positron emission tomography (FDG PET), pharmacodynamics, correlation of immunogenicity with clinical response, and correlation of argininosuccinate synthetase (ASS) tumor expression with clinical response.

Detailed description

A 3+3 design was implemented during phase 1, in which 3 to 6 subjects were enrolled sequentially into the following escalating dose cohorts: * Cohort 1 (40 IU/m\^2) * Cohort 2 (80 IU/m\^2) * Cohort 3 (160 IU/m\^2) Subjects were monitored for dose-limiting toxicity (DLT) during the first 2 weeks of cycle 1, with DLT defined as any grade 3 or higher toxicity. The maximum tolerated dose (MTD) was defined as the cohort in which \< 33% of subjects (ie, 0/3 or 1/6 subjects in a cohort) experienced DLT. In phase 2, the MTD cohort was expanded in up to 25 patients. Subjects who completed treatment in cycle 1 without DLT were eligible to initiate cycle 2 at week 10 provided that a computed tomography (CT) scan showed either enlargement of existing disease without accompanying symptoms OR stable disease or improvement with no unacceptable toxicity. The same radiologic criteria applied for initiation of subsequent cycles. Subjects could continue to receive study treatment until disease progression.

Interventions

DRUGADI PEG 20

Intramuscular injections were administered into the deltoid, gluteal, or quadricep muscles once weekly (± 2 days) for 9 weeks during cycle 1 and 8 weeks during subsequent cycles

Sponsors

Memorial Sloan Kettering Cancer Center
CollaboratorOTHER
NYU Langone Health
CollaboratorOTHER
Ludwig Institute for Cancer Research
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Histologically confirmed malignant melanoma, American Joint Committee on Cancer (AJCC) stage III (unresectable) or IV. Subjects with uveal and mucosal melanomas were eligible. 2. Measurable disease using the Response Evaluation Criteria in Solid Tumors (RECIST). 3. Pathology slides reviewed by the Memorial Hospital Department of Pathology or New York University (NYU) Department of Pathology for confirmation of melanoma diagnosis. 4. Karnofsky performance status of 80% or more. 5. Adequate organ and marrow function, as defined below: * white blood cell count ≥ 3000/µL * absolute neutrophil count ≥ 1500/µL * platelet count ≥ 100,000/µL * total bilirubin ≤ 2.5 x institutional upper limit of normal (ULN) * lactate dehydrogenase ≤ 1.5 x institutional ULN * albumin ≥ 3.0 mg/dL * creatinine ≤ 2.0 mg/dL 6. Expected survival of at least 3 months. 7. Age ≥ 18 years. 8. Able and willing to give valid written informed consent.

Exclusion criteria

1. Receipt of chemotherapy, immunotherapy, or radiotherapy within 3 weeks prior to first dosing of study agent or lack of recovery from adverse events (AEs) due to agents administered more than 3 weeks earlier. For nitrosoureas, at least 6 weeks must have elapsed. 2. Any other malignancy that required concomitant therapy. 3. Any medical condition that could have made it difficult for the subject to complete the full course of treatments, at the discretion of the Principal Investigator or co-Principal Investigators. 4. Metastatic disease to the central nervous system, unless treated and stable. 5. Known human immunodeficiency virus (HIV) positivity. 6. Mental impairment that may have compromised the ability to give informed consent and comply with the requirements of the study. 7. Lack of availability for clinical follow-up assessments. 8. Participation in any other clinical trial involving another investigational agent within 3 weeks prior to enrollment. 9. Pregnant women or women who were nursing. Women of child-bearing potential and sexually active men must have used appropriate contraception during the course of this study. Women of child-bearing potential must not have been pregnant (negative β human chorionic gonadotropin within 2 weeks of treatment) or nursing during treatment. 10. History of seizure disorder.

Design outcomes

Primary

MeasureTime frameDescription
Assessment of Safety and Tolerability of ADI-PEG 20Every 1 to 2 weeks for up to 12 monthsAnalysis of treatment-emergent adverse events (TEAEs) reported from clinical laboratory tests, physical examinations, and vital signs.
Best Overall Clinical Tumor ResponseEvery 8 to 9 weeks for up to 12 monthsClinical tumor responses were evaluated using disease imaging (CT preferred) performed at baseline and at the end of every cycle. Responses were categorized according to RECIST. Per RECIST for target lesions and assessed by MRI: Complete Response (CR): Disappearance of all target lesions \[no evidence of disease\]; Partial Response (PR): ≥ 30% decrease in the sum of the longest diameter of target lesions; Progressive Disease (PD): ≥ 20% increase in the sum of the longest diameter of target lesions; Stable Disease (SD): small changes that do not meet above criteria.

Secondary

MeasureTime frameDescription
Summary of Plasma Arginine Levels Over TimeUp to 9 monthsBlood samples were collected at baseline, day 1 (pre-injection), day 4, day 8, and every 7 days thereafter for plasma arginine levels.
Summary of Plasma Citrulline Levels Over TimeUp to 9 monthsBlood samples were collected at baseline, day 1 (pre-injection), day 4, day 8, and every 7 days thereafter for plasma citrulline levels.
Metabolic Tumor ResponseEvery 8 to 9 weeks for up to 12 monthsMetabolic tumor responses were evaluated using fluorodeoxyglucose (FDG) positron emission tomography (PET) at baseline, on day 4, and at the end of every cycle.
Correlation Between ASS Tumor Expression and Clinical ResponseUp to 12 monthsExpression of ASS was analyzed by immunohistochemistry in tumor samples (archived or biopsy) at baseline and compared with overall best clinical response per RECIST. ASS tumor expression is categorized as either negative or ≤ 5% positive tumor cells.
Summary of ADI-PEG 20 Immunogenicity Over TimeUp to 12 monthsBlood samples were collected at baseline, day 1 (pre-injection), day 4, day 8, and every 7 days thereafter for detection of anti-ADI antibodies.
Summary of ADI-PEG 20 Plasma Concentrations Over TimeUp to 12 monthsBlood samples were collected on day 1 (pre-injection), day 4, day 8, and every 7 days thereafter for ADI-PEG 20 plasma concentrations.

Countries

United States

Participant flow

Participants by arm

ArmCount
Cohort 1: ADI-PEG 20 40 IU/m^2/Week
Includes subjects enrolled to receive 40 IU/m\^2/week of ADI-PEG 20
6
Cohort 2: ADI-PEG 20 80 IU/m^2/Week
Includes subjects enrolled to receive 80 IU/m\^2/week of ADI-PEG 20
6
Cohort 3: ADI-PEG 20 160 IU/m^2/Week
Includes subjects enrolled to receive 160 IU/m\^2/week of ADI-PEG 20
19
Total31

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyProgressive disease034
Overall StudyWithdrawal by Subject002

Baseline characteristics

CharacteristicCohort 1: ADI-PEG 20 40 IU/m^2/WeekCohort 2: ADI-PEG 20 80 IU/m^2/WeekCohort 3: ADI-PEG 20 160 IU/m^2/WeekTotal
Age, Continuous61.7 years
STANDARD_DEVIATION 18.2
61.2 years
STANDARD_DEVIATION 14.7
67.2 years
STANDARD_DEVIATION 11.2
64.9 years
STANDARD_DEVIATION 13.2
ASS Assay Result
≤5% positive
2 participants0 participants3 participants5 participants
ASS Assay Result
Negative
4 participants6 participants14 participants24 participants
ASS Assay Result
Not done
0 participants0 participants2 participants2 participants
BMI22.0 kg/m^2
STANDARD_DEVIATION 4.1
24.7 kg/m^2
STANDARD_DEVIATION 1.8
26.9 kg/m^2
STANDARD_DEVIATION 4.7
25.5 kg/m^2
STANDARD_DEVIATION 4.5
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants1 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
6 Participants6 Participants17 Participants29 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
6 Participants6 Participants18 Participants30 Participants
Sex: Female, Male
Female
5 Participants3 Participants6 Participants14 Participants
Sex: Female, Male
Male
1 Participants3 Participants13 Participants17 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 60 / 61 / 19
other
Total, other adverse events
6 / 66 / 619 / 19
serious
Total, serious adverse events
4 / 61 / 66 / 19

Outcome results

Primary

Assessment of Safety and Tolerability of ADI-PEG 20

Analysis of treatment-emergent adverse events (TEAEs) reported from clinical laboratory tests, physical examinations, and vital signs.

Time frame: Every 1 to 2 weeks for up to 12 months

Population: Safety Analysis Set (all subjects who received at least 1 dose of ADI-PEG 20)

ArmMeasureGroupValue (NUMBER)
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20Grade 4 TEAE0 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20TEAE leading to withdrawal0 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20Treatment-related TEAE5 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20Grade 5 TEAE (Death)0 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20Grade 3 TEAE1 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20Any TEAE6 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20SAE4 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20Treatment-related TEAE5 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20Any TEAE6 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20Grade 3 TEAE2 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20Grade 4 TEAE1 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20Grade 5 TEAE (Death)0 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20SAE1 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20TEAE leading to withdrawal1 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20Treatment-related TEAE17 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20Grade 3 TEAE4 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20TEAE leading to withdrawal3 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20SAE6 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20Any TEAE19 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20Grade 5 TEAE (Death)1 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekAssessment of Safety and Tolerability of ADI-PEG 20Grade 4 TEAE1 participants
Primary

Best Overall Clinical Tumor Response

Clinical tumor responses were evaluated using disease imaging (CT preferred) performed at baseline and at the end of every cycle. Responses were categorized according to RECIST. Per RECIST for target lesions and assessed by MRI: Complete Response (CR): Disappearance of all target lesions \[no evidence of disease\]; Partial Response (PR): ≥ 30% decrease in the sum of the longest diameter of target lesions; Progressive Disease (PD): ≥ 20% increase in the sum of the longest diameter of target lesions; Stable Disease (SD): small changes that do not meet above criteria.

Time frame: Every 8 to 9 weeks for up to 12 months

Population: Includes all subjects who completed the study as planned or had tumor progression during the study

ArmMeasureGroupValue (NUMBER)
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekBest Overall Clinical Tumor ResponseStable disease3 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekBest Overall Clinical Tumor ResponseComplete/partial response0 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekBest Overall Clinical Tumor ResponseProgressive disease3 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekBest Overall Clinical Tumor ResponseStable disease2 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekBest Overall Clinical Tumor ResponseComplete/partial response0 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekBest Overall Clinical Tumor ResponseProgressive disease4 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekBest Overall Clinical Tumor ResponseComplete/partial response0 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekBest Overall Clinical Tumor ResponseProgressive disease13 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekBest Overall Clinical Tumor ResponseStable disease4 participants
Secondary

Correlation Between ASS Tumor Expression and Clinical Response

Expression of ASS was analyzed by immunohistochemistry in tumor samples (archived or biopsy) at baseline and compared with overall best clinical response per RECIST. ASS tumor expression is categorized as either negative or ≤ 5% positive tumor cells.

Time frame: Up to 12 months

Population: Includes all subjects who had an ASS antigen assay performed at Baseline

ArmMeasureGroupValue (NUMBER)
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekCorrelation Between ASS Tumor Expression and Clinical Response≤5% Positive ASS & Progressive Disease2 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekCorrelation Between ASS Tumor Expression and Clinical ResponseNegative ASS & Stable Disease1 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekCorrelation Between ASS Tumor Expression and Clinical ResponseNegative ASS & Progressive Disease3 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekCorrelation Between ASS Tumor Expression and Clinical ResponseNegative ASS & Missing Response0 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekCorrelation Between ASS Tumor Expression and Clinical ResponseNegative ASS & Missing Response0 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekCorrelation Between ASS Tumor Expression and Clinical Response≤5% Positive ASS & Progressive Disease0 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekCorrelation Between ASS Tumor Expression and Clinical ResponseNegative ASS & Progressive Disease5 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekCorrelation Between ASS Tumor Expression and Clinical ResponseNegative ASS & Stable Disease1 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekCorrelation Between ASS Tumor Expression and Clinical ResponseNegative ASS & Missing Response2 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekCorrelation Between ASS Tumor Expression and Clinical ResponseNegative ASS & Stable Disease0 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekCorrelation Between ASS Tumor Expression and Clinical ResponseNegative ASS & Progressive Disease12 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekCorrelation Between ASS Tumor Expression and Clinical Response≤5% Positive ASS & Progressive Disease3 participants
Secondary

Metabolic Tumor Response

Metabolic tumor responses were evaluated using fluorodeoxyglucose (FDG) positron emission tomography (PET) at baseline, on day 4, and at the end of every cycle.

Time frame: Every 8 to 9 weeks for up to 12 months

Population: Includes all subjects who completed the study as planned or had tumor progression during the study

ArmMeasureGroupValue (NUMBER)
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 50: Missing0 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 4: Partial metabolic response1 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 4: Missing0 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 50: Progressive metabolic disease2 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 4: Stable metabolic disease2 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 50: Partial metabolic response0 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 4: Progressive metabolic disease3 participants
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 50: Stable metabolic disease4 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 4: Progressive metabolic disease2 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 4: Partial metabolic response0 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 50: Progressive metabolic disease1 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 50: Missing1 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 50: Partial metabolic response1 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 50: Stable metabolic disease3 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 4: Missing1 participants
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 4: Stable metabolic disease3 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 50: Missing3 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 4: Partial metabolic response6 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 4: Stable metabolic disease6 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 4: Progressive metabolic disease4 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 4: Missing1 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 50: Partial metabolic response0 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 50: Stable metabolic disease5 participants
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekMetabolic Tumor ResponseCycle 1 Day 50: Progressive metabolic disease9 participants
Secondary

Summary of ADI-PEG 20 Immunogenicity Over Time

Blood samples were collected at baseline, day 1 (pre-injection), day 4, day 8, and every 7 days thereafter for detection of anti-ADI antibodies.

Time frame: Up to 12 months

Population: Includes all subjects who had at least 1 post-baseline blood sample with associated pharmacokinetic analysis. Means are presented for time points at which \>1 subject in any arm contributed data.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 712.3 log 10 U/mLStandard Deviation 0.6
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 360.8 log 10 U/mLStandard Deviation 0.8
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 782.7 log 10 U/mLStandard Deviation 0.6
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 642.0 log 10 U/mLStandard Deviation 1
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 431.2 log 10 U/mLStandard Deviation 1.2
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 1063.0 log 10 U/mLStandard Deviation 1
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 571.5 log 10 U/mLStandard Deviation 0.8
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 501.5 log 10 U/mLStandard Deviation 1.2
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 80.2 log 10 U/mLStandard Deviation 0.4
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 1203.0 log 10 U/mLStandard Deviation 0
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 993.0 log 10 U/mLStandard Deviation 1
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 150.5 log 10 U/mLStandard Deviation 0.5
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 1133.0 log 10 U/mLStandard Deviation 0
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 923.0 log 10 U/mLStandard Deviation 0
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 220.5 log 10 U/mLStandard Deviation 0.5
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 40.2 log 10 U/mLStandard Deviation 0.4
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 852.7 log 10 U/mLStandard Deviation 0.6
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 290.8 log 10 U/mLStandard Deviation 0.4
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 00.2 log 10 U/mLStandard Deviation 0.4
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 361.8 log 10 U/mLStandard Deviation 0.4
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 00.2 log 10 U/mLStandard Deviation 0.5
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 40.0 log 10 U/mLStandard Deviation 0
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 80.4 log 10 U/mLStandard Deviation 0.5
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 150.6 log 10 U/mLStandard Deviation 0.5
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 221.0 log 10 U/mLStandard Deviation 0.6
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 291.4 log 10 U/mLStandard Deviation 0.5
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 431.8 log 10 U/mLStandard Deviation 0.4
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 502.2 log 10 U/mLStandard Deviation 0.4
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 572.4 log 10 U/mLStandard Deviation 0.5
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 642.0 log 10 U/mLStandard Deviation 0
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 712.5 log 10 U/mLStandard Deviation 0.7
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 782.5 log 10 U/mLStandard Deviation 0.7
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 852.0 log 10 U/mLStandard Deviation 0
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 923.0 log 10 U/mLStandard Deviation 0
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 993.0 log 10 U/mL
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 1063.0 log 10 U/mL
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 1132.0 log 10 U/mL
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 1204.0 log 10 U/mL
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 1064.0 log 10 U/mLStandard Deviation 0.8
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 784.0 log 10 U/mLStandard Deviation 0.8
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 220.7 log 10 U/mLStandard Deviation 0.5
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 00.1 log 10 U/mLStandard Deviation 0.3
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 854.0 log 10 U/mLStandard Deviation 0.8
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 150.8 log 10 U/mLStandard Deviation 0.4
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 1204.5 log 10 U/mLStandard Deviation 1.3
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 924.0 log 10 U/mLStandard Deviation 0.8
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 80.4 log 10 U/mLStandard Deviation 0.5
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 502.9 log 10 U/mLStandard Deviation 1.5
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 432.4 log 10 U/mLStandard Deviation 1.2
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 1134.0 log 10 U/mLStandard Deviation 1.4
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 573.0 log 10 U/mLStandard Deviation 1.2
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 361.9 log 10 U/mLStandard Deviation 1.1
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 40.4 log 10 U/mLStandard Deviation 0.5
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 643.0 log 10 U/mLStandard Deviation 1.3
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 291.3 log 10 U/mLStandard Deviation 0.9
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 993.8 log 10 U/mLStandard Deviation 1.3
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Immunogenicity Over TimeDay 713.5 log 10 U/mLStandard Deviation 0.6
Secondary

Summary of ADI-PEG 20 Plasma Concentrations Over Time

Blood samples were collected on day 1 (pre-injection), day 4, day 8, and every 7 days thereafter for ADI-PEG 20 plasma concentrations.

Time frame: Up to 12 months

Population: Includes all subjects who had at least 1 post-baseline blood sample with associated pharmacokinetic analysis. Means are presented for time points at which \>1 subject in any arm contributed data.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 435.5 nMStandard Deviation 16
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 850.5 nMStandard Deviation 0.7
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 4312.0 nMStandard Deviation 10.7
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 03.3 nMStandard Deviation 2.9
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 782.8 nMStandard Deviation 1.1
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 5011.0 nMStandard Deviation 14.9
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 1537.7 nMStandard Deviation 27.2
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 712.6 nMStandard Deviation 1.3
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 578.4 nMStandard Deviation 10.5
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 1202.1 nMStandard Deviation 0.7
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 648.0 nMStandard Deviation 9.1
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 1061.0 nMStandard Deviation 1.7
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 2224.1 nMStandard Deviation 16.9
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 1130.9 nMStandard Deviation 0.1
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 990.9 nMStandard Deviation 1.1
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 2916.8 nMStandard Deviation 11.1
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 833.2 nMStandard Deviation 17.2
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 920.9 nMStandard Deviation 0.8
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 3611.2 nMStandard Deviation 11.7
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 1063.1 nM
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 04.4 nMStandard Deviation 5.2
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 459.8 nMStandard Deviation 35.7
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 846.3 nMStandard Deviation 33.8
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 1549.8 nMStandard Deviation 59.4
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 2261.2 nMStandard Deviation 63.8
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 2954.0 nMStandard Deviation 58.2
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 3650.0 nMStandard Deviation 65.3
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 4334.9 nMStandard Deviation 47.2
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 5019.0 nMStandard Deviation 26.2
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 579.3 nMStandard Deviation 10.3
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 6414.7 nMStandard Deviation 17.3
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 711.5 nMStandard Deviation 0.7
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 780.6 nMStandard Deviation 0.8
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 850.2 nMStandard Deviation 0
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 920.6 nMStandard Deviation 0.4
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 992.2 nM
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 1132.0 nM
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 1203.0 nM
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 782.6 nMStandard Deviation 1.2
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 3627.1 nMStandard Deviation 42.3
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 1204.0 nMStandard Deviation 2.4
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 852.2 nMStandard Deviation 1.9
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 2940.9 nMStandard Deviation 42.3
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 1131.6 nMStandard Deviation 1.8
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 922.6 nMStandard Deviation 2.9
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 2247.5 nMStandard Deviation 40.2
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 01.9 nMStandard Deviation 1.7
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 992.4 nMStandard Deviation 1.7
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 1554.0 nMStandard Deviation 36.4
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 5710.0 nMStandard Deviation 15.6
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 860.9 nMStandard Deviation 35.5
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 6410.0 nMStandard Deviation 16.2
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 5013.2 nMStandard Deviation 25.7
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 1060.9 nMStandard Deviation 0.8
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 713.8 nMStandard Deviation 2.9
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 4311.9 nMStandard Deviation 20.2
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of ADI-PEG 20 Plasma Concentrations Over TimeDay 457.2 nMStandard Deviation 39.9
Secondary

Summary of Plasma Arginine Levels Over Time

Blood samples were collected at baseline, day 1 (pre-injection), day 4, day 8, and every 7 days thereafter for plasma arginine levels.

Time frame: Up to 9 months

Population: Includes all subjects who had at least 1 post-baseline blood sample with associated pharmacokinetic analysis. Means are presented for time points at which \>1 subject in any arm contributed data.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 42 uMStandard Deviation 0
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 7878 uMStandard Deviation 39
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 4323 uMStandard Deviation 34
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 10652 uMStandard Deviation 34
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 7168 uMStandard Deviation 33
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 5058 uMStandard Deviation 46
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 055 uMStandard Deviation 17
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 6430 uMStandard Deviation 29
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 5738 uMStandard Deviation 30
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 154 uMStandard Deviation 6
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 12064 uMStandard Deviation 34
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 9967 uMStandard Deviation 11
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 229 uMStandard Deviation 11
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 11359 uMStandard Deviation 15
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 9298 uMStandard Deviation 42
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 2914 uMStandard Deviation 24
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 82 uMStandard Deviation 0
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 8575 uMStandard Deviation 38
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 3620 uMStandard Deviation 28
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 10643 uM
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 49 uMStandard Deviation 20
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 812 uMStandard Deviation 18
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 1529 uMStandard Deviation 22
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 2222 uMStandard Deviation 23
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 2919 uMStandard Deviation 24
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 3629 uMStandard Deviation 26
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 4335 uMStandard Deviation 31
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 5024 uMStandard Deviation 21
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 5727 uMStandard Deviation 22
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 6430 uMStandard Deviation 26
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 7163 uMStandard Deviation 13
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 78105 uMStandard Deviation 2
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 8564 uMStandard Deviation 28
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 9295 uMStandard Deviation 6
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 9989 uM
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 062 uMStandard Deviation 22
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 11353 uM
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 12059 uM
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 7860 uMStandard Deviation 26
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 2923 uMStandard Deviation 32
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 44 uMStandard Deviation 11
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 8574 uMStandard Deviation 24
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 2221 uMStandard Deviation 33
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 12060 uMStandard Deviation 16
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 9271 uMStandard Deviation 23
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 157 uMStandard Deviation 16
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 11359 uMStandard Deviation 7
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 9952 uMStandard Deviation 16
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 5740 uMStandard Deviation 31
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 5044 uMStandard Deviation 37
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 83 uMStandard Deviation 7
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 6442 uMStandard Deviation 35
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 4348 uMStandard Deviation 44
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 049 uMStandard Deviation 11
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 7150 uMStandard Deviation 34
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 3631 uMStandard Deviation 34
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Arginine Levels Over TimeDay 10677 uMStandard Deviation 28
Secondary

Summary of Plasma Citrulline Levels Over Time

Blood samples were collected at baseline, day 1 (pre-injection), day 4, day 8, and every 7 days thereafter for plasma citrulline levels.

Time frame: Up to 9 months

Population: Includes all subjects who had at least 1 post-baseline blood sample with associated pharmacokinetic analysis. Means are presented for time points at which \>1 subject in any arm contributed data.

ArmMeasureGroupValue (MEAN)Dispersion
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 4195 uMStandard Deviation 89
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 8550 uMStandard Deviation 30
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 43106 uMStandard Deviation 81
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 038 uMStandard Deviation 17
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 7840 uMStandard Deviation 12
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 5058 uMStandard Deviation 31
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 15127 uMStandard Deviation 71
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 7135 uMStandard Deviation 9
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 5771 uMStandard Deviation 51
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 12037 uMStandard Deviation 14
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 6476 uMStandard Deviation 80
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 10633 uMStandard Deviation 21
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 22141 uMStandard Deviation 102
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 11335 uMStandard Deviation 12
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 9933 uMStandard Deviation 13
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 2999 uMStandard Deviation 59
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 8152 uMStandard Deviation 40
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 9244 uMStandard Deviation 21
Cohort 1: ADI-PEG 20 40 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 36116 uMStandard Deviation 75
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 10633 uM
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 029 uMStandard Deviation 8
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 4158 uMStandard Deviation 84
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 8121 uMStandard Deviation 51
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 15125 uMStandard Deviation 122
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 22174 uMStandard Deviation 165
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 29126 uMStandard Deviation 126
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 36104 uMStandard Deviation 115
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 43135 uMStandard Deviation 149
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 5077 uMStandard Deviation 88
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 5747 uMStandard Deviation 29
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 64108 uMStandard Deviation 133
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 7119 uMStandard Deviation 9
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 7844 uMStandard Deviation 29
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 8523 uMStandard Deviation 6
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 9227 uMStandard Deviation 2
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 9931 uM
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 11322 uM
Cohort 2: ADI-PEG 20 80 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 12047 uM
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 7830 uMStandard Deviation 19
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 36139 uMStandard Deviation 149
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 12022 uMStandard Deviation 8
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 8532 uMStandard Deviation 11
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 29169 uMStandard Deviation 148
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 11323 uMStandard Deviation 10
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 9229 uMStandard Deviation 18
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 22245 uMStandard Deviation 175
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 023 uMStandard Deviation 14
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 9923 uMStandard Deviation 12
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 15280 uMStandard Deviation 150
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 5764 uMStandard Deviation 76
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 8280 uMStandard Deviation 125
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 6460 uMStandard Deviation 54
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 5066 uMStandard Deviation 76
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 10629 uMStandard Deviation 10
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 7145 uMStandard Deviation 34
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 4371 uMStandard Deviation 72
Cohort 3: ADI-PEG 20 160 IU/m^2/WeekSummary of Plasma Citrulline Levels Over TimeDay 4225 uMStandard Deviation 106

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026