Angioimmunoblastic T-cell Lymphoma, Chondrosarcoma, Glioma, Intrahepatic Cholangiocarcinoma, Solid Tumor
Conditions
Keywords
solid tumor, intrahepatic cholangiocarcinoma, chondrosarcoma, angioimmunoblastic T-cell lymphoma, AITL, IDH, glioma, solid tumor, including intrahepatic cholangiocarcinoma and chondrosarcoma
Brief summary
The purpose of this study is to evaluate the safety, pharmacokinetics, and clinical activity of enasidenib in adults with advanced solid tumors, including glioma, or with angioimmunoblastic T-cell lymphoma (AITL), with an isocitrate dehydrogenase-2 (IDH2) mutation.
Detailed description
The first portion of the study is a dose escalation phase where cohorts of patients will receive ascending oral doses of enasidenib to determine the maximum tolerated dose (MTD) and/or the recommended Phase 2 dose. The second portion of the study is a planned dose expansion phase where three cohorts of patients will receive enasidenib to further evaluate the safety, tolerability, and clinical activity. Anticipated time on study treatment is until disease progression or unacceptable toxicity occurs. Enrollment into the AG221-C-003 study was closed following enrollment of the dose escalation Cohort 4 (650 mg QD) in order to focus resources on the development of other pipeline IDH inhibitors in solid tumors, gliomas, and lymphoma; it was not due to safety reasons. Participants receiving enasidenib at the time of study closure were to be allowed to continue treatment until disease progression or the development of unacceptable toxicity, as outlined in the study protocol.
Interventions
DRUGEnasidenib
Enasidenib tablets administered orally once a day in 28-day treatment cycles until disease progression or unacceptable toxicities.
Sponsors
Celgene Corporation
Celgene
Study design
Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Subject must be ≥ 18 years of age * Histologically or cytologically confirmed advanced solid tumor, including glioma, or angioimmunoblastic T-cell lymphoma (AITL) that has recurred or progressed following standard therapy, or that has not responded to standard therapy * Subjects must be amenable to peripheral blood sampling, urine sampling, and biopsies during the study. Subjects with AITL must also be amenable to serial bone marrow biopsies * Documented IDH2 gene-mutated disease based on local site testing * Measurable disease by RECIST v1.1 for subjects with solid tumors without glioma, by modified RANO criteria for subjects with glioma, or by the revised IWG criteria for subjects with AITL * Subjects must have Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2 * Adequate bone marrow function (subjects other than those with AITL) as evidenced by: absolute neutrophil count ≥ 1.0 ×10\^9/L; hemoglobin \> 9 g/dL (subjects may be transfused red blood cells to this level.); platelets ≥ 50 × 10\^9/L * Adequate hepatic function as evidenced by: serum total bilirubin ≤ 1.5 × upper limit of normal (ULN), unless considered due to Gilbert's disease, a gene mutation in UGT1A1, or disease involvement, following approval by the Medical Monitor; aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP) ≤ 2.5 × ULN, with the exception of subjects with bone metastases and/or suspected disease-related liver or biliary involvement, where ALP must be ≤ 5 × ULN * Adequate renal function as evidenced by: serum creatinine ≤ 2.0 × ULN; OR creatinine clearance \> 40 mL/min based on the Cockroft-Gault glomerular filtration rate (GFR) estimation: (140 - Age) x (weight in kg) x (0.85 if female)/72 x serum creatinine * Female subjects with reproductive potential must have a negative serum pregnancy test within 7 days prior to the start of therapy. Women of childbearing potential as well as fertile men and their partners must agree to abstain from sexual intercourse or to use an effective form of contraception during the study and for 90 days (females and males) following the last dose of AG-221 * Previous allogeneic stem cell transplant is allowed only if subjects are \>100 days from stem cell transplant and do not have uncontrolled acute or chronic graft-vs-host disease
Exclusion criteria
* Received systemic anticancer therapy or radiotherapy \< 21 days prior to their first day of study drug administration * Received an investigational agent \< 14 days prior to their first day of study drug administration. In addition, the first dose of AG-221 should not occur before a period ≥ 5 half-lives of the investigational agent has elapsed * Subjects taking the following sensitive cytochrome P450 (CYP) substrate medications that have a narrow therapeutic range are excluded from the study unless they can be transferred to other medications prior to enrolling: paclitaxel (CYP2C8), warfarin, phenytoin (CYP2C9), S-mephenytoin (CYP2C19), thioridazine (CYP2D6), theophylline and tizanidine (CYP1A2) * Subjects taking the P-glycoprotein (P-gp) and breast cancer resistant protein (BCRP) transporter-sensitive substrates digoxin and rosuvastatin should be excluded from the study, unless they can be transferred to other medications prior to enrolling. study unless they can be transferred to other medications prior to enrolling * Subjects for whom potentially curative anticancer therapy is available * Pregnant or breastfeeding * Active severe infection that required anti-infective therapy or with an unexplained fever \> 38.5°C during screening visits or on their first day of study drug administration (at the discretion of the Investigator, subjects with tumor fever may be enrolled) * Known hypersensitivity to any of the components of AG-221 * Subjects with New York Heart Association (NYHA) Class III or IV congestive heart failure or left ventricular ejection fraction (LVEF) \< 40% by echocardiogram (ECHO) or multi-gated acquisition (MUGA) scan within approximately 28 days of Cycle 1Day 1 * History of myocardial infarction within the last 6 months * Subjects with uncontrolled hypertension (systolic blood pressure \> 180 mmHg or diastolic blood pressure \> 100 mmHg) are excluded. Subjects requiring 2 or more medications to control hypertension are eligible with Medical Monitor approval. * Known unstable or uncontrolled angina pectoris * Known history of severe and/or uncontrolled ventricular arrhythmias * Heart-rate corrected QT (QTc) interval \> 450 msec or with other factors that increase the risk of QT prolongation or arrhythmic events (e.g., heart failure, hypokalemia, family history of long QT interval syndrome). Subjects with right bundle branch block and a prolonged QTc interval should be reviewed by the Medical Monitor for potential inclusion * Subjects taking medications that are known to prolong the QT interval * Known infection with human immunodeficiency virus (HIV) or active hepatitis B or C * Any other medical or psychological condition, deemed by the Investigator to be likely to interfere with a subject's ability to sign informed consent, cooperate, or participate in the study * Known dysphagia, short-gut syndrome, gastroparesis, or other conditions that limit the ingestion or gastrointestinal absorption of drugs administered orally * Subjects with brain metastases that are untreated, symptomatic, or require therapy to control symptoms; or any radiation, surgery, or other therapy, including to control symptoms, within 2 months of first dose. Subjects with glioma who are on a stable, steroid-dosing regimen prior to screening magnetic resonance imaging (MRI) may be permitted to enroll with Medical Monitor approval * In subjects with AITL, evidence of meningeal or cerebral disease or a history of progressive multifocal leukoencephalopathy * Radiotherapy involving \< 25% of the hematopoietically active bone marrow within 21 days preceding first dose of study treatment * Radiotherapy involving ≥ 25% of the hematopoietically active bone marrow within 42 days preceding first dose of study treatment
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Baseline, Cycle 1 Day 15, Cycle 2 Day 1, Cycle 3 Day 1, Cycle 4 Day 1, Cycle 5 Day 1, and at end of treatment | ECOG performance status is used by doctors and researchers to assess how a subjects disease is progressing, assess how the disease affects the daily living activities of the subject and determine appropriate treatment and prognosis. * 0 = Fully active (most favorable activity); * 1 = Restricted activity but ambulatory; * 2 = Ambulatory but unable to carry out work activities; * 3 = Limited self-care; * 4 = Completely disabled, no self-care (least favorable activity). |
| Number of Participants With Treatment-emergent Adverse Events (TEAEs) | From first dose of study drug to 28 days after last dose; median (minimum, maximum) duration of exposure was 66 (8, 197) days across all cohorts. | Treatment-emergent adverse events included any adverse events (AEs) occurring or worsening on or after the first dose of study drug and within 28 days after the last dose of the study drug. Severity was graded according to Common Terminology Criteria for Adverse Events (CTCAE) v4.03 or according to the following scale: Grade 1= Mild AE, Grade 2= Moderate AE, Grade 3= Severe AE, Grade 4= Life-threatening or disabling AE, Grade 5= Fatal, death related to AE. A serious AE is any AE occurring at any dose that: * Resulted in death; * Was life-threatening; * Required or prolonged existing inpatient hospitalization; * Resulted in persistent or significant disability/incapacity; * Was a congenital anomaly/birth defect; * Constituted an important medical event. Relationship to study drug administration was determined by the investigator as not related, possibly related, or probably related; all AEs classified as possibly or probably related were considered treatment-related. |
| Number of Participants With Dose-limiting Toxicities | Cycle 1 (28 days) | Toxicities were graded and documented according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE), Version 4.03. A dose-limiting toxicity (DLT) was defined as an event considered related to enasidenib and meeting 1 of the following criteria: Non-hematologic: \- All clinically significant non-hematologic toxicities CTCAE ≥ Grade 3, considered not related to underlying disease or intercurrent illness, with the exception of ≥ Grade 3 blood bilirubin increases in participants with a uridine diphosphate-glucuronosyltransferase 1 family, polypeptide A1 (UGT1A1) mutation. In participants with a UGT1A1 mutation, blood bilirubin increases of \> 5 × upper limit of normal (ULN) were considered a DLT. Hematologic: \- Drug-related, prolonged myelosuppression of ≥ Grade 4 neutropenia or thrombocytopenia lasting beyond Day 28 of Cycle 1 unless related to bone marrow involvement by AITL. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Area Under the Plasma Concentration Time Curve From Time Zero to 10 Hours Postdose (AUC0-10) of Enasidenib After a Single Oral Dose on Day -3 | Day -3, pre-dose and at 30 minutes and 1, 2, 3, 4, 6, 8, and 10 hours post-dose. | The first 3 to 5 participants enrolled in each cohort in the dose escalation phase received a single dose of enasidenib three days prior to starting the 28-day dosing regimen (Day -3) for assessment of enasidenib pharmacokinetics (PK). Plasma enasidenib was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. Area under the plasma concentration-time curve from time 0 to 10 hours post-dose (AUC0-10) was calculated using the linear trapezoidal rule. |
| Area Under the Plasma Concentration Time Curve From Time Zero to 72 Hours Postdose (AUC0-72) of Enasidenib After a Single Dose on Day -3 | Day -3, pre-dose and at 30 minutes and 1, 2, 3, 4, 6, 8, 10, 24, 48, and 72 hours post-dose. | The first 3 to 5 participants enrolled in each cohort in the dose escalation phase received a single dose of enasidenib three days prior to starting the 28-day dosing regimen (Day -3) for assessment of enasidenib pharmacokinetics (PK). Plasma enasidenib was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. Area under the plasma concentration-time curve from time 0 to 72 hours post-dose (AUC0-72) was calculated using the linear trapezoidal rule. |
| Maximum Observed Plasma Concentration (Cmax) of Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3 | Day -3 pre-dose and at 30 minutes and 1, 2, 3, 4, 6, 8, 10, 24, 48, and 72 hours post-dose. | The first 3 to 5 participants enrolled in each cohort in the dose escalation phase received a single dose of enasidenib three days prior to starting the 28-day dosing regimen (Day -3). AGI-16903 is a primary metabolite of enasidenib. Plasma AGI-16903 was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. |
| Time of Maximum Plasma Concentration (Tmax) of Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3 | Day -3, pre-dose and at 30 minutes and 1, 2, 3, 4, 6, 8, 10, 24, 48, and 72 hours post-dose. | The first 3 to 5 participants enrolled in each cohort in the dose escalation phase received a single dose of enasidenib three days prior to starting the 28-day dosing regimen (Day -3). AGI-16903 is a primary metabolite of enasidenib. Plasma AGI-16903 was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. |
| Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3 | Day -3, pre-dose and at 30 minutes and 1, 2, 3, 4, 6, 8, and 10 hours post-dose. | The first 3 to 5 participants enrolled in each cohort in the dose escalation phase received a single dose of enasidenib three days prior to starting the 28-day dosing regimen (Day -3). AGI-16903 is a primary metabolite of enasidenib. Plasma AGI-16903 was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. Area under the plasma concentration-time curve from time 0 to 10 hours post-dose (AUC0-10) was calculated using the linear trapezoidal rule. |
| Area Under the Plasma Concentration-time Curve From Time 0 to 72 Hours Postdose (AUC0-72) for AGI-16903 After a Single Dose of Enasidenib on Day -3 | Day -3, pre-dose and at 30 minutes and 1, 2, 3, 4, 6, 8, 10, 24, 48, and 72 hours post-dose. | The first 3 to 5 participants enrolled in each cohort in the dose escalation phase received a single dose of enasidenib three days prior to starting the 28-day dosing regimen (Day -3). AGI-16903 is a primary metabolite of enasidenib. Plasma AGI-16903 was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. Area under the plasma concentration-time curve from time 0 to 72 hours post-dose (AUC0-72) was calculated using the linear trapezoidal rule. |
| Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Enasidenib After Multiple Doses | Cycle 2 Day 1 at predose and 0.5, 1, 2, 3, 4, 6, 8, and 10 hours post-dose. | Plasma enasidenib was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. Area under the plasma concentration-time curve from time 0 to 10 hours post-dose (AUC0-10) was calculated using the linear trapezoidal rule. |
| Time of Maximum Plasma Concentration (Tmax) of Enasidenib After Multiple Doses | Cycle 2 Day 1 at predose and 0.5, 1, 2, 3, 4, 6, 8, and 10 hours post-dose. | Plasma enasidenib was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. |
| Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Metabolite AGI-16903 After Multiple Doses of Enasidenib | Cycle 2 Day 1 at predose and 0.5, 1, 2, 3, 4, 6, 8, and 10 hours post-dose. | AGI-16903 is a primary metabolite of enasidenib. Plasma AGI-16903 was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. Area under the plasma concentration-time curve from time 0 to 10 hours post-dose (AUC0-10) was calculated using the linear trapezoidal rule. |
| Maximum Observed Plasma Concentration (Cmax) of Metabolite AGI-16903 After Multiple Doses of Enasidenib | Cycle 2 Day 1 at predose and 0.5, 1, 2, 3, 4, 6, 8, and 10 hours post-dose. | AGI-16903 is a primary metabolite of enasidenib. Plasma AGI-16903 was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. |
| Time of Maximum Plasma Concentration (Tmax) of Metabolite AGI-16903 After Multiple Doses of Enasidenib | Cycle 2 Day 1 at predose and 0.5, 1, 2, 3, 4, 6, 8, and 10 hours post-dose. | AGI-16903 is a primary metabolite of enasidenib. Plasma AGI-16903 was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. |
| Percentage of Participants With Solid Tumors (Excluding Glioma) Who Achieved an Objective Response | Response assessments were performed every 56 days up to the end of treatment; median (minimum, maximum) duration of treatment was 50.0 (34, 112), 51.5 (41, 57), 40.0 (4, 170), and 27.0 (3, 126) days in each treatment group respectively. | Response was assessed based on radiographic evaluations according to the Response Evaluation Criteria in Solid Tumors (RECIST 1.1) criteria for participants with solid tumors without glioma. An objective response was defined as the percentage of participants with complete response (CR) or partial response (PR), confirmed no less than 4 weeks after the criteria for response were first met based on RECIST 1.1. Complete response: Disappearance of all target and non-target lesions, pathological lymph nodes must have reduction in short axis to \< 10 mm, and no new lesions. Partial response: Disappearance of all target lesions with persistence of one or more non-target lesion(s) and/or maintenance of tumor marker levels above the normal limits, or, at least a 30% decrease in the size of target lesions and no progression of existing non-target lesions and no new lesions. |
| Percentage of Participants With Glioma Who Achieved an Objective Response | Response assessments were performed every 56 days up to the end of treatment; median (minimum, maximum) duration of treatment was 50.0 (34, 112), 51.5 (41, 57), 40.0 (4, 170), and 27.0 (3, 126) days in each treatment group respectively. | Response was assessed based on modified Response Assessment in Neuro-Oncology (RANO) working group criteria in participants with glioma. An objective response is defined as the percentage of participants with a CR or PR, confirmed no less than 4 weeks based on the modified RANO) criteria. CR: Complete disappearance of all enhancing measurable and non-measurable disease sustained for at least 4 weeks, stable or improved non-enhancing (T2/FLAIR) lesions, no new lesions, participants must be off corticosteroids (or on physiologic replacement doses only), and clinically stable or improved. PR: At least 50% decrease compared to Baseline in the size of all measurable enhancing lesions sustained for at least 4 weeks, no progression of non-measurable disease or any new lesions, stable of lower dose of corticosteroids than Baseline dose, and stable or improved non-enhancing (T2/FLAIR) lesions. |
| Percentage of Participants With AITL Who Achieved an Objective Response | Response assessments were performed every 56 days up to the end of treatment; median (minimum, maximum) duration of treatment was 50.0 (34, 112), 51.5 (41, 57), 40.0 (4, 170), and 27.0 (3, 126) days in each treatment group respectively. | Response assessments for participants with AITL were based on the revised International Working Group (IWG) Response criteria for Malignant Lymphoma. Overall response was defined as the percentage of participants who achieved a CR or PR based on IWG criteria. CR: Disappearance of all evidence of disease, including nodal masses, extra nodal masses, and bone marrow. PR: Regression of measurable disease and no new sites (≥ 50% decrease in size from Baseline of all index lesions (both nodal and extranodal lesions), no obvious increase in non-index lesions/disease, fludeoxyglucose (FDG)-avid or positron emission tomography (PET) positive prior to therapy; one or more PET positive at previously involved site, variably FDG-avid or PET negative; regression on computed tomography (CT), no increase in size of liver or spleen). |
| Maximum Observed Plasma Concentration (Cmax) of Enasidenib After Multiple Doses | Cycle 2 Day 1 at predose and 0.5, 1, 2, 3, 4, 6, 8, and 10 hours post-dose. | Plasma enasidenib was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. |
| Maximum Observed Plasma Concentration (Cmax) After a Single Dose of Enasidenib on Day -3 | Day -3, pre-dose and at 30 minutes and 1, 2, 3, 4, 6, 8, 10, 24, 48, and 72 hours post-dose. | The first 3 to 5 participants enrolled in each cohort in the dose escalation phase received a single dose of enasidenib three days prior to starting the 28-day dosing regimen (Day -3) for assessment of enasidenib pharmacokinetics (PK). Plasma enasidenib was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. |
| Time of Maximum Plasma Concentration (Tmax) of Enasidenib After a Single Dose on Day -3 | Day -3, pre-dose and at 30 minutes and 1, 2, 3, 4, 6, 8, 10, 24, 48, and 72 hours post-dose. | The first 3 to 5 participants enrolled in each cohort in the dose escalation phase received a single dose of enasidenib three days prior to starting the 28-day dosing regimen (Day -3) for assessment of enasidenib pharmacokinetics (PK). Plasma enasidenib was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. |
Other
| Measure | Time frame | Description |
|---|---|---|
| Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | Baseline, Cycle 1 Days 1, 8, 15, and 22, Cycle 2 Days 1 and 15 and Day 1 of every cycle thereafter. | QT interval was measured by electrocardiogram throughout the study. The maximum increase in QTcF from Baseline observed across all assessments is reported according to the following categories: increase ≤ 30 milliseconds (ms), increase \> 30 to ≤ 60 ms, and increase \> 60 ms. |
Countries
France, United States
Participant flow
Recruitment details
The study was conducted at 11 clinical sites in the United States and France. The study was to include a dose escalation phase to determine maximum tolerated dose (MTD) followed by expansion cohorts to further evaluate the safety and tolerability of the MTD. Enrollment was closed following enrollment of the dose escalation Cohort 4 and the expansion phase was not conducted.
Pre-assignment details
Participants with advanced solid tumors, including glioma, or angioimmunoblastic T-cell lymphoma (AITL) were enrolled into sequential cohorts of increasing doses of enasidenib in the dose-escalation phase of the study.
Participants by arm
| Arm | Count |
|---|---|
| Enasidenib 100 mg Participants received enasidenib 100 mg tablets QD on Days 1 to 28 of each 28-day treatment cycle until disease progression or unacceptable toxicity. | 3 |
| Enasidenib 200 mg Participants received enasidenib 200 mg tablets QD on Days 1 to 28 of each 28-day treatment cycle until disease progression or unacceptable toxicity. | 4 |
| Enasidenib 400 mg Participants received enasidenib 400 mg tablets QD on Days 1 to 28 of each 28-day treatment cycle until disease progression or unacceptable toxicity. | 7 |
| Enasidenib 650 mg Participants received enasidenib 650 mg tablets QD on Days 1 to 28 of each 28-day treatment cycle until disease progression or unacceptable toxicity. | 7 |
| Total | 21 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 | FG002 | FG003 |
|---|---|---|---|---|---|
| Overall Study | Adverse Event | 0 | 0 | 0 | 1 |
| Overall Study | Death | 0 | 0 | 0 | 2 |
| Overall Study | Physician Decision | 0 | 0 | 0 | 1 |
| Overall Study | Progression of Disease | 3 | 4 | 5 | 2 |
| Overall Study | Withdrawal by Subject | 0 | 0 | 2 | 1 |
Baseline characteristics
| Characteristic | Enasidenib 100 mg | Enasidenib 200 mg | Enasidenib 400 mg | Enasidenib 650 mg | Total |
|---|---|---|---|---|---|
| Age, Continuous | 56.3 years STANDARD_DEVIATION 16.8 | 68.0 years STANDARD_DEVIATION 5.1 | 52.0 years STANDARD_DEVIATION 18.47 | 61.3 years STANDARD_DEVIATION 13.34 | 58.8 years STANDARD_DEVIATION 14.97 |
| Age, Customized 60 to < 70 years | 1 Participants | 3 Participants | 2 Participants | 1 Participants | 7 Participants |
| Age, Customized < 60 years | 1 Participants | 0 Participants | 4 Participants | 3 Participants | 8 Participants |
| Age, Customized 70 to < 75 years | 1 Participants | 0 Participants | 1 Participants | 2 Participants | 4 Participants |
| Age, Customized ≥ 75 years | 0 Participants | 1 Participants | 0 Participants | 1 Participants | 2 Participants |
| Body Surface Area (BSA) | 1.8 m² STANDARD_DEVIATION 0.21 | 2.1 m² STANDARD_DEVIATION 0.15 | 1.8 m² STANDARD_DEVIATION 0.23 | 1.8 m² STANDARD_DEVIATION 0.18 | 1.8 m² STANDARD_DEVIATION 0.22 |
| Eastern Cooperative Oncology Group (ECOG) Performance Status 0 = Fully Active | 1 Participants | 2 Participants | 3 Participants | 3 Participants | 9 Participants |
| Eastern Cooperative Oncology Group (ECOG) Performance Status 1= Restricted but Ambulatory | 0 Participants | 2 Participants | 2 Participants | 2 Participants | 6 Participants |
| Eastern Cooperative Oncology Group (ECOG) Performance Status 2 = Ambulatory but Unable to Work | 2 Participants | 0 Participants | 2 Participants | 2 Participants | 6 Participants |
| Eastern Cooperative Oncology Group (ECOG) Performance Status 3 = Limited Self-Care | 0 Participants | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Eastern Cooperative Oncology Group (ECOG) Performance Status 4 = Completely Disabled | 0 Participants | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Isocitrate dehydrogenase 2 (IDH2) Mutation Type Missing | 0 Participants | 0 Participants | 1 Participants | 0 Participants | 1 Participants |
| Isocitrate dehydrogenase 2 (IDH2) Mutation Type Other | 0 Participants | 1 Participants | 3 Participants | 1 Participants | 5 Participants |
| Isocitrate dehydrogenase 2 (IDH2) Mutation Type R140 | 0 Participants | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Isocitrate dehydrogenase 2 (IDH2) Mutation Type R172 | 3 Participants | 3 Participants | 3 Participants | 6 Participants | 15 Participants |
| Isocitrate dehydrogenase (IDH) 1 Gene Result IDH1 R132 | 0 Participants | 0 Participants | 0 Participants | 0 Participants | 0 Participants |
| Isocitrate dehydrogenase (IDH) 1 Gene Result Missing | 1 Participants | 0 Participants | 1 Participants | 0 Participants | 2 Participants |
| Isocitrate dehydrogenase (IDH) 1 Gene Result Negative | 2 Participants | 4 Participants | 6 Participants | 4 Participants | 16 Participants |
| Isocitrate dehydrogenase (IDH) 1 Gene Result Other | 0 Participants | 0 Participants | 0 Participants | 3 Participants | 3 Participants |
| Race Black or African American | 1 Participants | 0 Participants | 0 Participants | 0 Participants | 1 Participants |
| Race Not Reported | 0 Participants | 0 Participants | 1 Participants | 3 Participants | 4 Participants |
| Race White | 2 Participants | 4 Participants | 6 Participants | 4 Participants | 16 Participants |
| Sex: Female, Male Female | 1 Participants | 0 Participants | 4 Participants | 3 Participants | 8 Participants |
| Sex: Female, Male Male | 2 Participants | 4 Participants | 3 Participants | 4 Participants | 13 Participants |
| Tumor Type Angioimmunoblastic T-cell lymphoma (AITL) | 1 Participants | 1 Participants | 0 Participants | 3 Participants | 5 Participants |
| Tumor Type Cholangiocarcinoma | 0 Participants | 0 Participants | 1 Participants | 3 Participants | 4 Participants |
| Tumor Type Chondrosarcoma | 1 Participants | 1 Participants | 1 Participants | 0 Participants | 3 Participants |
| Tumor Type Glioma | 1 Participants | 0 Participants | 4 Participants | 1 Participants | 6 Participants |
| Tumor Type Other | 0 Participants | 2 Participants | 1 Participants | 0 Participants | 3 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk | EG002 affected / at risk | EG003 affected / at risk |
|---|---|---|---|---|
| deaths Total, all-cause mortality | 1 / 3 | 0 / 4 | 1 / 7 | 2 / 7 |
| other Total, other adverse events | 3 / 3 | 4 / 4 | 6 / 7 | 7 / 7 |
| serious Total, serious adverse events | 2 / 3 | 2 / 4 | 3 / 7 | 4 / 7 |
Outcome results
Primary
Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit
ECOG performance status is used by doctors and researchers to assess how a subjects disease is progressing, assess how the disease affects the daily living activities of the subject and determine appropriate treatment and prognosis. * 0 = Fully active (most favorable activity); * 1 = Restricted activity but ambulatory; * 2 = Ambulatory but unable to carry out work activities; * 3 = Limited self-care; * 4 = Completely disabled, no self-care (least favorable activity).
Time frame: Baseline, Cycle 1 Day 15, Cycle 2 Day 1, Cycle 3 Day 1, Cycle 4 Day 1, Cycle 5 Day 1, and at end of treatment
Population: Enrolled participants with available data at each time point
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Enasidenib 100 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Baseline | 1.3 score on a scale | Standard Deviation 1.15 |
| Enasidenib 100 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Cycle 1 Day 15 | 1.7 score on a scale | Standard Deviation 0.58 |
| Enasidenib 100 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Cycle 2 Day 1 | 1.7 score on a scale | Standard Deviation 0.58 |
| Enasidenib 100 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Cycle 3 Day 1 | 1.0 score on a scale | — |
| Enasidenib 100 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Cycle 4 Day 1 | 1.0 score on a scale | — |
| Enasidenib 100 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | End of Treatment | 2.5 score on a scale | Standard Deviation 0.71 |
| Enasidenib 200 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Cycle 1 Day 15 | 1.8 score on a scale | Standard Deviation 1.5 |
| Enasidenib 200 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | End of Treatment | 0.7 score on a scale | Standard Deviation 0.58 |
| Enasidenib 200 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Baseline | 0.5 score on a scale | Standard Deviation 0.58 |
| Enasidenib 200 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Cycle 2 Day 1 | 0.8 score on a scale | Standard Deviation 0.5 |
| Enasidenib 400 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | End of Treatment | 1.3 score on a scale | Standard Deviation 1.5 |
| Enasidenib 400 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Cycle 2 Day 1 | 1.2 score on a scale | Standard Deviation 1.3 |
| Enasidenib 400 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Cycle 3 Day 1 | 1.0 score on a scale | Standard Deviation 0 |
| Enasidenib 400 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Cycle 1 Day 15 | 0.8 score on a scale | Standard Deviation 0.84 |
| Enasidenib 400 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Cycle 4 Day 1 | 1.0 score on a scale | Standard Deviation 0 |
| Enasidenib 400 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Cycle 5 Day 1 | 1.0 score on a scale | Standard Deviation 0 |
| Enasidenib 400 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Baseline | 0.9 score on a scale | Standard Deviation 0.9 |
| Enasidenib 650 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Cycle 4 Day 1 | 1.0 score on a scale | — |
| Enasidenib 650 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Cycle 5 Day 1 | 1.0 score on a scale | — |
| Enasidenib 650 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Cycle 2 Day 1 | 0.7 score on a scale | Standard Deviation 0.58 |
| Enasidenib 650 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | End of Treatment | 1.7 score on a scale | Standard Deviation 1.15 |
| Enasidenib 650 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Cycle 3 Day 1 | 1.0 score on a scale | Standard Deviation 0 |
| Enasidenib 650 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Cycle 1 Day 15 | 1.0 score on a scale | Standard Deviation 0.71 |
| Enasidenib 650 mg | Eastern Cooperative Oncology Group (ECOG) Performance Status at Each Visit | Baseline | 0.9 score on a scale | Standard Deviation 0.9 |
Primary
Number of Participants With Dose-limiting Toxicities
Toxicities were graded and documented according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE), Version 4.03. A dose-limiting toxicity (DLT) was defined as an event considered related to enasidenib and meeting 1 of the following criteria: Non-hematologic: \- All clinically significant non-hematologic toxicities CTCAE ≥ Grade 3, considered not related to underlying disease or intercurrent illness, with the exception of ≥ Grade 3 blood bilirubin increases in participants with a uridine diphosphate-glucuronosyltransferase 1 family, polypeptide A1 (UGT1A1) mutation. In participants with a UGT1A1 mutation, blood bilirubin increases of \> 5 × upper limit of normal (ULN) were considered a DLT. Hematologic: \- Drug-related, prolonged myelosuppression of ≥ Grade 4 neutropenia or thrombocytopenia lasting beyond Day 28 of Cycle 1 unless related to bone marrow involvement by AITL.
Time frame: Cycle 1 (28 days)
Population: All enrolled and treated participants
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Enasidenib 100 mg | Number of Participants With Dose-limiting Toxicities | 0 Participants |
| Enasidenib 200 mg | Number of Participants With Dose-limiting Toxicities | 0 Participants |
| Enasidenib 400 mg | Number of Participants With Dose-limiting Toxicities | 1 Participants |
| Enasidenib 650 mg | Number of Participants With Dose-limiting Toxicities | 0 Participants |
Primary
Number of Participants With Treatment-emergent Adverse Events (TEAEs)
Treatment-emergent adverse events included any adverse events (AEs) occurring or worsening on or after the first dose of study drug and within 28 days after the last dose of the study drug. Severity was graded according to Common Terminology Criteria for Adverse Events (CTCAE) v4.03 or according to the following scale: Grade 1= Mild AE, Grade 2= Moderate AE, Grade 3= Severe AE, Grade 4= Life-threatening or disabling AE, Grade 5= Fatal, death related to AE. A serious AE is any AE occurring at any dose that: * Resulted in death; * Was life-threatening; * Required or prolonged existing inpatient hospitalization; * Resulted in persistent or significant disability/incapacity; * Was a congenital anomaly/birth defect; * Constituted an important medical event. Relationship to study drug administration was determined by the investigator as not related, possibly related, or probably related; all AEs classified as possibly or probably related were considered treatment-related.
Time frame: From first dose of study drug to 28 days after last dose; median (minimum, maximum) duration of exposure was 66 (8, 197) days across all cohorts.
Population: All participants who were enrolled and received at least 1 dose of study drug
| Arm | Measure | Group | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 serious treatment-related TEAE | 0 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 serious TEAE | 2 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade ≥ 3 treatment-related TEAE | 0 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE leading to death | 0 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade 5 treatment-related TEAE | 0 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade 5 TEAE | 1 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE leading interruption of enasidenib | 0 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 TEAE leading to interruption of enasidenib | 0 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade 3/4 TEAE | 2 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-emergent adverse event (TEAE) | 3 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE leading to dose reduction of enasidenib | 0 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 TEAE leading to dose reduction of enasidenib | 0 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade 3/4 treatment-related TEAE | 0 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 TEAE leading to death | 1 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE leading to discontinuation of enasidenib | 0 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 TEAE leading to discontinuation of enasidenib | 0 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade ≥ 3 TEAE | 2 Participants |
| Enasidenib 100 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE | 3 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade 3/4 TEAE | 3 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-emergent adverse event (TEAE) | 4 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE | 4 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade 3/4 treatment-related TEAE | 0 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade ≥ 3 TEAE | 3 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade ≥ 3 treatment-related TEAE | 0 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade 5 TEAE | 0 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade 5 treatment-related TEAE | 0 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 serious TEAE | 2 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 serious treatment-related TEAE | 0 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 TEAE leading to discontinuation of enasidenib | 0 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE leading to discontinuation of enasidenib | 0 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 TEAE leading to dose reduction of enasidenib | 0 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE leading to dose reduction of enasidenib | 0 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 TEAE leading to interruption of enasidenib | 2 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE leading interruption of enasidenib | 0 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 TEAE leading to death | 0 Participants |
| Enasidenib 200 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE leading to death | 0 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade ≥ 3 TEAE | 5 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 serious treatment-related TEAE | 0 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 TEAE leading to discontinuation of enasidenib | 0 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade 3/4 treatment-related TEAE | 3 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE leading to death | 0 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE leading to discontinuation of enasidenib | 0 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 TEAE leading to death | 1 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 TEAE leading to dose reduction of enasidenib | 0 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade 3/4 TEAE | 5 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE leading to dose reduction of enasidenib | 0 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-emergent adverse event (TEAE) | 6 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 TEAE leading to interruption of enasidenib | 3 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE | 5 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade 5 TEAE | 1 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade ≥ 3 treatment-related TEAE | 3 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade 5 treatment-related TEAE | 0 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE leading interruption of enasidenib | 2 Participants |
| Enasidenib 400 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 serious TEAE | 3 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade 5 TEAE | 2 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE leading interruption of enasidenib | 4 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE leading to dose reduction of enasidenib | 0 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 serious treatment-related TEAE | 2 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade 3/4 treatment-related TEAE | 3 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-emergent adverse event (TEAE) | 7 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE | 5 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 TEAE leading to discontinuation of enasidenib | 3 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade ≥ 3 TEAE | 5 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE leading to death | 0 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 TEAE leading to interruption of enasidenib | 5 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 treatment-related TEAE leading to discontinuation of enasidenib | 1 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade 3/4 TEAE | 4 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade ≥ 3 treatment-related TEAE | 3 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 serious TEAE | 4 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 TEAE leading to dose reduction of enasidenib | 0 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 Grade 5 treatment-related TEAE | 0 Participants |
| Enasidenib 650 mg | Number of Participants With Treatment-emergent Adverse Events (TEAEs) | ≥ 1 TEAE leading to death | 2 Participants |
Secondary
Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Enasidenib After Multiple Doses
Plasma enasidenib was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. Area under the plasma concentration-time curve from time 0 to 10 hours post-dose (AUC0-10) was calculated using the linear trapezoidal rule.
Time frame: Cycle 2 Day 1 at predose and 0.5, 1, 2, 3, 4, 6, 8, and 10 hours post-dose.
Population: Participants who received enasidenib on Cycle 2 Day 1 with sufficient data to determine PK parameters.
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Enasidenib 100 mg | Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Enasidenib After Multiple Doses | 106522.9 h*ng/mL | Geometric Coefficient of Variation 46.7 |
| Enasidenib 200 mg | Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Enasidenib After Multiple Doses | 161862.9 h*ng/mL | Geometric Coefficient of Variation 1.4 |
| Enasidenib 400 mg | Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Enasidenib After Multiple Doses | 154248.7 h*ng/mL | Geometric Coefficient of Variation 33.3 |
| Enasidenib 650 mg | Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Enasidenib After Multiple Doses | 221865.0 h*ng/mL | Geometric Coefficient of Variation 10.1 |
Secondary
Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3
The first 3 to 5 participants enrolled in each cohort in the dose escalation phase received a single dose of enasidenib three days prior to starting the 28-day dosing regimen (Day -3). AGI-16903 is a primary metabolite of enasidenib. Plasma AGI-16903 was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. Area under the plasma concentration-time curve from time 0 to 10 hours post-dose (AUC0-10) was calculated using the linear trapezoidal rule.
Time frame: Day -3, pre-dose and at 30 minutes and 1, 2, 3, 4, 6, 8, and 10 hours post-dose.
Population: Participants who received 1 dose of enasidenib on Day -3 with sufficient data to determine PK parameters.
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Enasidenib 100 mg | Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3 | 518.6 h*ng/mL | Geometric Coefficient of Variation 64.5 |
| Enasidenib 200 mg | Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3 | 233.3 h*ng/mL | Geometric Coefficient of Variation 30.6 |
| Enasidenib 400 mg | Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3 | 1358.2 h*ng/mL | Geometric Coefficient of Variation 46.5 |
| Enasidenib 650 mg | Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3 | 965.2 h*ng/mL | Geometric Coefficient of Variation 67.8 |
Secondary
Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Metabolite AGI-16903 After Multiple Doses of Enasidenib
AGI-16903 is a primary metabolite of enasidenib. Plasma AGI-16903 was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. Area under the plasma concentration-time curve from time 0 to 10 hours post-dose (AUC0-10) was calculated using the linear trapezoidal rule.
Time frame: Cycle 2 Day 1 at predose and 0.5, 1, 2, 3, 4, 6, 8, and 10 hours post-dose.
Population: Participants who received enasidenib on Cycle 2 Day 1 with sufficient data to determine PK parameters.
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Enasidenib 100 mg | Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Metabolite AGI-16903 After Multiple Doses of Enasidenib | 9074.5 h*ng/mL | Geometric Coefficient of Variation 53.6 |
| Enasidenib 200 mg | Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Metabolite AGI-16903 After Multiple Doses of Enasidenib | 13914.2 h*ng/mL | Geometric Coefficient of Variation 13.2 |
| Enasidenib 400 mg | Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Metabolite AGI-16903 After Multiple Doses of Enasidenib | 19865.8 h*ng/mL | Geometric Coefficient of Variation 36.8 |
| Enasidenib 650 mg | Area Under the Plasma Concentration-time Curve From Time 0 to 10 Hours Postdose (AUC0-10) for Metabolite AGI-16903 After Multiple Doses of Enasidenib | 23007.5 h*ng/mL | Geometric Coefficient of Variation 34.8 |
Secondary
Area Under the Plasma Concentration-time Curve From Time 0 to 72 Hours Postdose (AUC0-72) for AGI-16903 After a Single Dose of Enasidenib on Day -3
The first 3 to 5 participants enrolled in each cohort in the dose escalation phase received a single dose of enasidenib three days prior to starting the 28-day dosing regimen (Day -3). AGI-16903 is a primary metabolite of enasidenib. Plasma AGI-16903 was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. Area under the plasma concentration-time curve from time 0 to 72 hours post-dose (AUC0-72) was calculated using the linear trapezoidal rule.
Time frame: Day -3, pre-dose and at 30 minutes and 1, 2, 3, 4, 6, 8, 10, 24, 48, and 72 hours post-dose.
Population: Participants who received 1 dose of enasidenib on Day -3 with sufficient data to determine PK parameters.
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Enasidenib 100 mg | Area Under the Plasma Concentration-time Curve From Time 0 to 72 Hours Postdose (AUC0-72) for AGI-16903 After a Single Dose of Enasidenib on Day -3 | 7556.4 h*ng/mL | Geometric Coefficient of Variation 42.9 |
| Enasidenib 200 mg | Area Under the Plasma Concentration-time Curve From Time 0 to 72 Hours Postdose (AUC0-72) for AGI-16903 After a Single Dose of Enasidenib on Day -3 | 7294.2 h*ng/mL | Geometric Coefficient of Variation 99999 |
| Enasidenib 400 mg | Area Under the Plasma Concentration-time Curve From Time 0 to 72 Hours Postdose (AUC0-72) for AGI-16903 After a Single Dose of Enasidenib on Day -3 | 13752.5 h*ng/mL | Geometric Coefficient of Variation 57.8 |
| Enasidenib 650 mg | Area Under the Plasma Concentration-time Curve From Time 0 to 72 Hours Postdose (AUC0-72) for AGI-16903 After a Single Dose of Enasidenib on Day -3 | 12519.5 h*ng/mL | Geometric Coefficient of Variation 74.7 |
Secondary
Area Under the Plasma Concentration Time Curve From Time Zero to 10 Hours Postdose (AUC0-10) of Enasidenib After a Single Oral Dose on Day -3
The first 3 to 5 participants enrolled in each cohort in the dose escalation phase received a single dose of enasidenib three days prior to starting the 28-day dosing regimen (Day -3) for assessment of enasidenib pharmacokinetics (PK). Plasma enasidenib was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. Area under the plasma concentration-time curve from time 0 to 10 hours post-dose (AUC0-10) was calculated using the linear trapezoidal rule.
Time frame: Day -3, pre-dose and at 30 minutes and 1, 2, 3, 4, 6, 8, and 10 hours post-dose.
Population: Participants who received 1 dose of enasidenib on Day -3 with sufficient data to determine PK parameters.
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Enasidenib 100 mg | Area Under the Plasma Concentration Time Curve From Time Zero to 10 Hours Postdose (AUC0-10) of Enasidenib After a Single Oral Dose on Day -3 | 10031.7 h*ng/mL | Geometric Coefficient of Variation 79 |
| Enasidenib 200 mg | Area Under the Plasma Concentration Time Curve From Time Zero to 10 Hours Postdose (AUC0-10) of Enasidenib After a Single Oral Dose on Day -3 | 11040.2 h*ng/mL | Geometric Coefficient of Variation 55.9 |
| Enasidenib 400 mg | Area Under the Plasma Concentration Time Curve From Time Zero to 10 Hours Postdose (AUC0-10) of Enasidenib After a Single Oral Dose on Day -3 | 31959.0 h*ng/mL | Geometric Coefficient of Variation 56.7 |
| Enasidenib 650 mg | Area Under the Plasma Concentration Time Curve From Time Zero to 10 Hours Postdose (AUC0-10) of Enasidenib After a Single Oral Dose on Day -3 | 29847.8 h*ng/mL | Geometric Coefficient of Variation 59.6 |
Secondary
Area Under the Plasma Concentration Time Curve From Time Zero to 72 Hours Postdose (AUC0-72) of Enasidenib After a Single Dose on Day -3
The first 3 to 5 participants enrolled in each cohort in the dose escalation phase received a single dose of enasidenib three days prior to starting the 28-day dosing regimen (Day -3) for assessment of enasidenib pharmacokinetics (PK). Plasma enasidenib was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL. Area under the plasma concentration-time curve from time 0 to 72 hours post-dose (AUC0-72) was calculated using the linear trapezoidal rule.
Time frame: Day -3, pre-dose and at 30 minutes and 1, 2, 3, 4, 6, 8, 10, 24, 48, and 72 hours post-dose.
Population: Participants who received 1 dose of enasidenib on Day -3 with sufficient data to determine PK parameters.
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Enasidenib 100 mg | Area Under the Plasma Concentration Time Curve From Time Zero to 72 Hours Postdose (AUC0-72) of Enasidenib After a Single Dose on Day -3 | 62420.0 h*ng/mL | Geometric Coefficient of Variation 80.6 |
| Enasidenib 200 mg | Area Under the Plasma Concentration Time Curve From Time Zero to 72 Hours Postdose (AUC0-72) of Enasidenib After a Single Dose on Day -3 | 86900.7 h*ng/mL | Geometric Coefficient of Variation 62.5 |
| Enasidenib 400 mg | Area Under the Plasma Concentration Time Curve From Time Zero to 72 Hours Postdose (AUC0-72) of Enasidenib After a Single Dose on Day -3 | 206214.4 h*ng/mL | Geometric Coefficient of Variation 65.2 |
| Enasidenib 650 mg | Area Under the Plasma Concentration Time Curve From Time Zero to 72 Hours Postdose (AUC0-72) of Enasidenib After a Single Dose on Day -3 | 248315.9 h*ng/mL | Geometric Coefficient of Variation 69.9 |
Secondary
Maximum Observed Plasma Concentration (Cmax) After a Single Dose of Enasidenib on Day -3
The first 3 to 5 participants enrolled in each cohort in the dose escalation phase received a single dose of enasidenib three days prior to starting the 28-day dosing regimen (Day -3) for assessment of enasidenib pharmacokinetics (PK). Plasma enasidenib was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL.
Time frame: Day -3, pre-dose and at 30 minutes and 1, 2, 3, 4, 6, 8, 10, 24, 48, and 72 hours post-dose.
Population: Participants who received 1 dose of enasidenib on Day -3 with sufficient data to determine PK parameters.
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Enasidenib 100 mg | Maximum Observed Plasma Concentration (Cmax) After a Single Dose of Enasidenib on Day -3 | 1403.4 ng/mL | Geometric Coefficient of Variation 77.9 |
| Enasidenib 200 mg | Maximum Observed Plasma Concentration (Cmax) After a Single Dose of Enasidenib on Day -3 | 1433.0 ng/mL | Geometric Coefficient of Variation 51.2 |
| Enasidenib 400 mg | Maximum Observed Plasma Concentration (Cmax) After a Single Dose of Enasidenib on Day -3 | 4540.6 ng/mL | Geometric Coefficient of Variation 63.7 |
| Enasidenib 650 mg | Maximum Observed Plasma Concentration (Cmax) After a Single Dose of Enasidenib on Day -3 | 4702.9 ng/mL | Geometric Coefficient of Variation 61.3 |
Secondary
Maximum Observed Plasma Concentration (Cmax) of Enasidenib After Multiple Doses
Plasma enasidenib was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL.
Time frame: Cycle 2 Day 1 at predose and 0.5, 1, 2, 3, 4, 6, 8, and 10 hours post-dose.
Population: Participants who received enasidenib on Cycle 2 Day 1 with sufficient data to determine PK parameters.
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Enasidenib 100 mg | Maximum Observed Plasma Concentration (Cmax) of Enasidenib After Multiple Doses | 10717.9 ng/mL | Geometric Coefficient of Variation 54.1 |
| Enasidenib 200 mg | Maximum Observed Plasma Concentration (Cmax) of Enasidenib After Multiple Doses | 14945.4 ng/mL | Geometric Coefficient of Variation 40.4 |
| Enasidenib 400 mg | Maximum Observed Plasma Concentration (Cmax) of Enasidenib After Multiple Doses | 19401.1 ng/mL | Geometric Coefficient of Variation 39.9 |
| Enasidenib 650 mg | Maximum Observed Plasma Concentration (Cmax) of Enasidenib After Multiple Doses | 29316.3 ng/mL | Geometric Coefficient of Variation 7.1 |
Secondary
Maximum Observed Plasma Concentration (Cmax) of Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3
The first 3 to 5 participants enrolled in each cohort in the dose escalation phase received a single dose of enasidenib three days prior to starting the 28-day dosing regimen (Day -3). AGI-16903 is a primary metabolite of enasidenib. Plasma AGI-16903 was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL.
Time frame: Day -3 pre-dose and at 30 minutes and 1, 2, 3, 4, 6, 8, 10, 24, 48, and 72 hours post-dose.
Population: Participants who received 1 dose of enasidenib on Day -3 with sufficient data to determine PK parameters.
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Enasidenib 100 mg | Maximum Observed Plasma Concentration (Cmax) of Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3 | 94.2 ng/mL | Geometric Coefficient of Variation 64.5 |
| Enasidenib 200 mg | Maximum Observed Plasma Concentration (Cmax) of Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3 | 71.9 ng/mL | Geometric Coefficient of Variation 70.8 |
| Enasidenib 400 mg | Maximum Observed Plasma Concentration (Cmax) of Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3 | 273.0 ng/mL | Geometric Coefficient of Variation 52.9 |
| Enasidenib 650 mg | Maximum Observed Plasma Concentration (Cmax) of Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3 | 239.4 ng/mL | Geometric Coefficient of Variation 64.8 |
Secondary
Maximum Observed Plasma Concentration (Cmax) of Metabolite AGI-16903 After Multiple Doses of Enasidenib
AGI-16903 is a primary metabolite of enasidenib. Plasma AGI-16903 was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL.
Time frame: Cycle 2 Day 1 at predose and 0.5, 1, 2, 3, 4, 6, 8, and 10 hours post-dose.
Population: Participants who received enasidenib on Cycle 2 Day 1 with sufficient data to determine PK parameters.
| Arm | Measure | Value (GEOMETRIC_MEAN) | Dispersion |
|---|---|---|---|
| Enasidenib 100 mg | Maximum Observed Plasma Concentration (Cmax) of Metabolite AGI-16903 After Multiple Doses of Enasidenib | 1093.7 ng/mL | Geometric Coefficient of Variation 59.5 |
| Enasidenib 200 mg | Maximum Observed Plasma Concentration (Cmax) of Metabolite AGI-16903 After Multiple Doses of Enasidenib | 1435.7 ng/mL | Geometric Coefficient of Variation 29.9 |
| Enasidenib 400 mg | Maximum Observed Plasma Concentration (Cmax) of Metabolite AGI-16903 After Multiple Doses of Enasidenib | 2101.1 ng/mL | Geometric Coefficient of Variation 56.7 |
| Enasidenib 650 mg | Maximum Observed Plasma Concentration (Cmax) of Metabolite AGI-16903 After Multiple Doses of Enasidenib | 2837.0 ng/mL | Geometric Coefficient of Variation 31.6 |
Secondary
Percentage of Participants With AITL Who Achieved an Objective Response
Response assessments for participants with AITL were based on the revised International Working Group (IWG) Response criteria for Malignant Lymphoma. Overall response was defined as the percentage of participants who achieved a CR or PR based on IWG criteria. CR: Disappearance of all evidence of disease, including nodal masses, extra nodal masses, and bone marrow. PR: Regression of measurable disease and no new sites (≥ 50% decrease in size from Baseline of all index lesions (both nodal and extranodal lesions), no obvious increase in non-index lesions/disease, fludeoxyglucose (FDG)-avid or positron emission tomography (PET) positive prior to therapy; one or more PET positive at previously involved site, variably FDG-avid or PET negative; regression on computed tomography (CT), no increase in size of liver or spleen).
Time frame: Response assessments were performed every 56 days up to the end of treatment; median (minimum, maximum) duration of treatment was 50.0 (34, 112), 51.5 (41, 57), 40.0 (4, 170), and 27.0 (3, 126) days in each treatment group respectively.
Population: Enrolled participants with AITL who received at least 1 dose of study drug.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Enasidenib 100 mg | Percentage of Participants With AITL Who Achieved an Objective Response | 0 percentage of participants |
| Enasidenib 200 mg | Percentage of Participants With AITL Who Achieved an Objective Response | 0 percentage of participants |
| Enasidenib 650 mg | Percentage of Participants With AITL Who Achieved an Objective Response | 0 percentage of participants |
Secondary
Percentage of Participants With Glioma Who Achieved an Objective Response
Response was assessed based on modified Response Assessment in Neuro-Oncology (RANO) working group criteria in participants with glioma. An objective response is defined as the percentage of participants with a CR or PR, confirmed no less than 4 weeks based on the modified RANO) criteria. CR: Complete disappearance of all enhancing measurable and non-measurable disease sustained for at least 4 weeks, stable or improved non-enhancing (T2/FLAIR) lesions, no new lesions, participants must be off corticosteroids (or on physiologic replacement doses only), and clinically stable or improved. PR: At least 50% decrease compared to Baseline in the size of all measurable enhancing lesions sustained for at least 4 weeks, no progression of non-measurable disease or any new lesions, stable of lower dose of corticosteroids than Baseline dose, and stable or improved non-enhancing (T2/FLAIR) lesions.
Time frame: Response assessments were performed every 56 days up to the end of treatment; median (minimum, maximum) duration of treatment was 50.0 (34, 112), 51.5 (41, 57), 40.0 (4, 170), and 27.0 (3, 126) days in each treatment group respectively.
Population: Enrolled participants with glioma who received at least 1 dose of study drug.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Enasidenib 100 mg | Percentage of Participants With Glioma Who Achieved an Objective Response | 0 percentage of participants |
| Enasidenib 400 mg | Percentage of Participants With Glioma Who Achieved an Objective Response | 0 percentage of participants |
| Enasidenib 650 mg | Percentage of Participants With Glioma Who Achieved an Objective Response | 0 percentage of participants |
Secondary
Percentage of Participants With Solid Tumors (Excluding Glioma) Who Achieved an Objective Response
Response was assessed based on radiographic evaluations according to the Response Evaluation Criteria in Solid Tumors (RECIST 1.1) criteria for participants with solid tumors without glioma. An objective response was defined as the percentage of participants with complete response (CR) or partial response (PR), confirmed no less than 4 weeks after the criteria for response were first met based on RECIST 1.1. Complete response: Disappearance of all target and non-target lesions, pathological lymph nodes must have reduction in short axis to \< 10 mm, and no new lesions. Partial response: Disappearance of all target lesions with persistence of one or more non-target lesion(s) and/or maintenance of tumor marker levels above the normal limits, or, at least a 30% decrease in the size of target lesions and no progression of existing non-target lesions and no new lesions.
Time frame: Response assessments were performed every 56 days up to the end of treatment; median (minimum, maximum) duration of treatment was 50.0 (34, 112), 51.5 (41, 57), 40.0 (4, 170), and 27.0 (3, 126) days in each treatment group respectively.
Population: Enrolled participants with solid tumors (excluding glioma) who received at least 1 dose of study drug.
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Enasidenib 100 mg | Percentage of Participants With Solid Tumors (Excluding Glioma) Who Achieved an Objective Response | 0 percentage of participants |
| Enasidenib 200 mg | Percentage of Participants With Solid Tumors (Excluding Glioma) Who Achieved an Objective Response | 0 percentage of participants |
| Enasidenib 400 mg | Percentage of Participants With Solid Tumors (Excluding Glioma) Who Achieved an Objective Response | 0 percentage of participants |
| Enasidenib 650 mg | Percentage of Participants With Solid Tumors (Excluding Glioma) Who Achieved an Objective Response | 0 percentage of participants |
Secondary
Time of Maximum Plasma Concentration (Tmax) of Enasidenib After a Single Dose on Day -3
The first 3 to 5 participants enrolled in each cohort in the dose escalation phase received a single dose of enasidenib three days prior to starting the 28-day dosing regimen (Day -3) for assessment of enasidenib pharmacokinetics (PK). Plasma enasidenib was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL.
Time frame: Day -3, pre-dose and at 30 minutes and 1, 2, 3, 4, 6, 8, 10, 24, 48, and 72 hours post-dose.
Population: Participants who received 1 dose of enasidenib on Day -3 with sufficient data to determine PK parameters.
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Enasidenib 100 mg | Time of Maximum Plasma Concentration (Tmax) of Enasidenib After a Single Dose on Day -3 | 2.0 hours |
| Enasidenib 200 mg | Time of Maximum Plasma Concentration (Tmax) of Enasidenib After a Single Dose on Day -3 | 6.1 hours |
| Enasidenib 400 mg | Time of Maximum Plasma Concentration (Tmax) of Enasidenib After a Single Dose on Day -3 | 8.0 hours |
| Enasidenib 650 mg | Time of Maximum Plasma Concentration (Tmax) of Enasidenib After a Single Dose on Day -3 | 3.3 hours |
Secondary
Time of Maximum Plasma Concentration (Tmax) of Enasidenib After Multiple Doses
Plasma enasidenib was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL.
Time frame: Cycle 2 Day 1 at predose and 0.5, 1, 2, 3, 4, 6, 8, and 10 hours post-dose.
Population: Participants who received enasidenib on Cycle 2 Day 1 with sufficient data to determine PK parameters.
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Enasidenib 100 mg | Time of Maximum Plasma Concentration (Tmax) of Enasidenib After Multiple Doses | 8.0 hours |
| Enasidenib 200 mg | Time of Maximum Plasma Concentration (Tmax) of Enasidenib After Multiple Doses | 5.9 hours |
| Enasidenib 400 mg | Time of Maximum Plasma Concentration (Tmax) of Enasidenib After Multiple Doses | 2.0 hours |
| Enasidenib 650 mg | Time of Maximum Plasma Concentration (Tmax) of Enasidenib After Multiple Doses | 2.2 hours |
Secondary
Time of Maximum Plasma Concentration (Tmax) of Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3
The first 3 to 5 participants enrolled in each cohort in the dose escalation phase received a single dose of enasidenib three days prior to starting the 28-day dosing regimen (Day -3). AGI-16903 is a primary metabolite of enasidenib. Plasma AGI-16903 was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL.
Time frame: Day -3, pre-dose and at 30 minutes and 1, 2, 3, 4, 6, 8, 10, 24, 48, and 72 hours post-dose.
Population: Participants who received 1 dose of enasidenib on Day -3 with sufficient data to determine PK parameters
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Enasidenib 100 mg | Time of Maximum Plasma Concentration (Tmax) of Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3 | 70.3 hours |
| Enasidenib 200 mg | Time of Maximum Plasma Concentration (Tmax) of Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3 | 71.7 hours |
| Enasidenib 400 mg | Time of Maximum Plasma Concentration (Tmax) of Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3 | 71.7 hours |
| Enasidenib 650 mg | Time of Maximum Plasma Concentration (Tmax) of Metabolite AGI-16903 After a Single Dose of Enasidenib on Day -3 | 72.0 hours |
Secondary
Time of Maximum Plasma Concentration (Tmax) of Metabolite AGI-16903 After Multiple Doses of Enasidenib
AGI-16903 is a primary metabolite of enasidenib. Plasma AGI-16903 was measured using validated liquid chromatography-mass spectrometry methods (LC-MS/MS). The lower limit of quantification (LLOQ) in plasma was 1.00 ng/mL.
Time frame: Cycle 2 Day 1 at predose and 0.5, 1, 2, 3, 4, 6, 8, and 10 hours post-dose.
Population: Participants who received enasidenib on Cycle 2 Day 1 with sufficient data to determine PK parameters.
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Enasidenib 100 mg | Time of Maximum Plasma Concentration (Tmax) of Metabolite AGI-16903 After Multiple Doses of Enasidenib | 8.0 hours |
| Enasidenib 200 mg | Time of Maximum Plasma Concentration (Tmax) of Metabolite AGI-16903 After Multiple Doses of Enasidenib | 5.9 hours |
| Enasidenib 400 mg | Time of Maximum Plasma Concentration (Tmax) of Metabolite AGI-16903 After Multiple Doses of Enasidenib | 1.4 hours |
| Enasidenib 650 mg | Time of Maximum Plasma Concentration (Tmax) of Metabolite AGI-16903 After Multiple Doses of Enasidenib | 2.2 hours |
Other Pre-specified
Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category
QT interval was measured by electrocardiogram throughout the study. The maximum increase in QTcF from Baseline observed across all assessments is reported according to the following categories: increase ≤ 30 milliseconds (ms), increase \> 30 to ≤ 60 ms, and increase \> 60 ms.
Time frame: Baseline, Cycle 1 Days 1, 8, 15, and 22, Cycle 2 Days 1 and 15 and Day 1 of every cycle thereafter.
Population: Enrolled participants who received at least 1 dose of study drug.
| Arm | Measure | Category | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|---|
| Enasidenib 100 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | Missing | 0 Participants |
| Enasidenib 100 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | QTcF Increased from Baseline > 30 to ≤ 60 ms | 0 Participants |
| Enasidenib 100 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | no QTcF Increase from Baseline | 0 Participants |
| Enasidenib 100 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | QTcF Increased from Baseline > 60 ms | 0 Participants |
| Enasidenib 100 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | QTcF Increased from Baseline ≤ 30 ms | 3 Participants |
| Enasidenib 200 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | QTcF Increased from Baseline > 60 ms | 0 Participants |
| Enasidenib 200 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | Missing | 0 Participants |
| Enasidenib 200 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | no QTcF Increase from Baseline | 0 Participants |
| Enasidenib 200 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | QTcF Increased from Baseline > 30 to ≤ 60 ms | 3 Participants |
| Enasidenib 200 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | QTcF Increased from Baseline ≤ 30 ms | 1 Participants |
| Enasidenib 400 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | QTcF Increased from Baseline > 60 ms | 0 Participants |
| Enasidenib 400 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | QTcF Increased from Baseline ≤ 30 ms | 5 Participants |
| Enasidenib 400 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | QTcF Increased from Baseline > 30 to ≤ 60 ms | 0 Participants |
| Enasidenib 400 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | Missing | 1 Participants |
| Enasidenib 400 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | no QTcF Increase from Baseline | 0 Participants |
| Enasidenib 650 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | QTcF Increased from Baseline > 30 to ≤ 60 ms | 0 Participants |
| Enasidenib 650 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | QTcF Increased from Baseline ≤ 30 ms | 5 Participants |
| Enasidenib 650 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | QTcF Increased from Baseline > 60 ms | 1 Participants |
| Enasidenib 650 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | no QTcF Increase from Baseline | 1 Participants |
| Enasidenib 650 mg | Maximum Increase From Baseline in Corrected QT Interval Based on Fridericia's Formula (QTcF) by Category | Missing | 0 Participants |