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A Phase Ib/IIb, Open-label, Multi-center, Study of Oral Panobinostat Administered With 5-Azacitidine (in Adult Patients With Myelodysplastic Syndromes (MDS), Chronic Myelomonocytic Leukemia (CMML), or Acute Myeloid Leukemia (AML).

A Phase Ib/IIb, Open-label, Multi-center, Study of Oral Panobinostat (LBH589) Administered With 5-Azacitidine (in Adult Patients With Myelodysplastic Syndromes (MDS), Chronic Myelomonocytic Leukemia (CMML), or Acute Myeloid Leukemia (AML).

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00946647
Enrollment
113
Registered
2009-07-27
Start date
2009-12-02
Completion date
2019-04-29
Last updated
2020-08-04

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

Conditions

Myelodysplastic Syndromes, Chronic Myelomonocytic Leukemia, Acute Myeloid Leukemia

Keywords

Myelodysplastic Syndromes, Chronic Myelomonocytic Leukemia, Acute Myeloid Leukemia, hypomethylating therapy, deacetylase inhibitor, MDS, CMML, AML

Brief summary

The purpose of this randomized, two-arm, open-label expansion phase study was to collect preliminary efficacy data of panobinostat at the recommended phase II dose (RPIID) level in combination with azacytidine (5-Aza) versus an active control arm 5-Aza alone. This randomized phase II part also allowed collecting safety data of panobinostat in combination with 5-Aza in comparison to single-agent 5-aza.

Detailed description

The primary objective of the phase lb portion of this study was to determine the maximum tolerated dose (MTD )and/or recommended phase ll dose (RPIID) of oral panobinostat in combination with a fixed dose of 5-Aza in adult patients with International Prognostic Scoring System intermediate-2 (IPSS INT-2) or high risk myelodysplastic syndrome (MDS), Chronic myelomonocytic leukemia (CMML), or Acute myelogenous leukemia (AML). The primary objective of the phase llb portion of this study was to assess preliminary efficacy of treatment with the panobinostat and 5-Aza combination at the RPIID relative to treatment with single agent 5-Aza through the assessment of composite CR (complete response (CR) or CRi or bone marrow CR). In the phase lb phase of the study, the patients received escalating oral doses of panobinostat commencing in Cycle 1. The starting dose for panobinostat was 20 mg/day administered orally commencing on Day 3. Each treatment cycle consisted of 28 days (4 weeks). In each cycle, panobinostat was administered twice in Week 1 (Day 3, Day 5), thrice in Week 2 (Day 8, Day 10, and Day 12) and once in Week 3 (Day 15), with no dosing in Week 4. Successive cohorts of patients received escalating doses of panobinostat until the MTD/RPIID was determined. The dose of 5-Aza was fixed at 75 mg/m2/day for 7 days in Week 1 of each cycle. After the MTD/RPIID was determined, enrollment in the Phase Ib part was closed and the Phase IIb part of the study commenced. Ongoing patients from the Phase Ib part continued their treatment at the assigned dose level according to the regimen and schedule for the Phase Ib part. Once the RPIID was defined in Phase Ib, additional 80 patients were to be enrolled into the Phase IIb part of the study and randomly assigned in a 1:1 ratio receiving the RPIID of panobinostat plus 5-Aza (investigational arm) or single agent 5-Aza (active control arm). The treatment schedule for the investigational arm was the same as that for the Phase Ib. Single agent 5-Aza (active control arm) was administered according to the locally approved label (75mg/m2 daily for 7 days). Patients continued treatment until disease progression, unacceptable toxicity or consent withdrawal, whichever came first.

Interventions

Panobinostat was supplied by Novartis as immediate-release hard gelatin capsules in strengths of 5 mg, 10 mg, and 20 mg packaged in high density polyethylene bottles.

Sponsors

Novartis Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Masking description

Treatment was assigned sequentially for the initial dose escalation part (phase Ib): If a dose was safe, the next cohort started with the next dose level. Randomization applies only for the phase IIb part.

Eligibility

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

Inclusion criteria

Phase l: * Patients with cytopathologically confirmed diagnosis of AML according to WHO criteria, excluding acute promyelocytic leukemia who are eligible for Vidaza treatment * ECOG performance status greater less than or equal to 2 Phase ll: * Adult patients (age ≥ 18 years) who were candidates for treatment with 5-Aza and present with one of the following: * intermediate-2 or high-risk myelodysplastic syndromes according to the International Prognostic Scoring System (IPSS). OR * AML with multilineage dysplasia and maximum of 30% blasts (former RAEB-T according to FAB) OR * chronic myelomonocytic leukemia (CMML) * Patients must have had the following laboratory values unless elevations are considered due to MDS or leukemia: AST/SGOT and/or ALT/SGPT ≤ 2.5 x ULN; serum creatinine ≤ 1.5 x ULN; serum bilirubin (total and direct) ≤ 2 x ULN; electrolyte panel within normal ranges (WNL) for the institution.

Exclusion criteria

Phase l: * Prior treatment with deacetylase inhibitors * Concurrent therapy with any other investigational agent Phase ll: * Planned hematopoietic stem-cell transplantation (HSCT) * Patients with therapy-related MDS * Patients with therapy-related AML and/or relapsed/refractory AML * Patients with impaired cardiac function including any of the following: * Complete left bundle branch block or use of a permanent cardiac pacemaker, congenital long QT syndrome, history or presence of ventricular tachyarrhythmia, clinically significant resting bradycardia (\<50 beats per minute), QTcF \> 460 ms on screening ECG, or right bundle branch block + left anterior hemiblock (bifascicular block) * Presence of unstable atrial fibrillation (ventricular response rate \>100 bpm). Patients with stable atrial fibrillation are eligible provided they do not meet the other cardiac

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Dose Limiting Toxicity (DLT) (Phase lb)within the first 28 days (cycle 1)Dose limiting toxicity (DLT) was defined as a toxicity requiring treatment withdrawal and included the following: Non-hematologic toxicity qualifying for DLT and Hematologic toxicity qualifying for DLT
Number of Dose Limiting Toxicity (DLT) (Phase lb)within the first 28 days (cycle 1)Dose limiting toxicity (DLT) was defined as a toxicity requiring treatment withdrawal and included the following: Non-hematologic toxicity qualifying for DLT and Hematologic toxicity qualifying for DLT
Composite Complete Response (Phase Llb)48 monthsComposite complete response is defined as complete response (CR), Complete response with incomplete blood count recovery (CRi) or bone marrow complete response (BM-CR) as defined by the International Working Group (IWG) response criteria.

Secondary

MeasureTime frameDescription
Overall Response Rate (ORR) Assessed by Best Overall Response: Participants With AML Per Investigator (Phase Llb)48 monthsBest overall response as measured by complete remission (CR) or complete response with incomplete blood count recovery (CRi) or partial remission (PR). Overall response patients achieved other than the composite CR by individual response category: CR, CRi or PR.
Hematologic Improvement (HI) for Myeloid Dysplastic Syndromes(MDS)/Chronic Myelomonocytic Leukemia (CMML) Patients Per Investigator (Phase Llb)48 monthsHematologic response consists of Erythroid response (HI-E), Platelet response (HI-P) and Neutrophil response (HI-N). HI-E: Hgb increase by ≥ 1.5 g/dL over pretreatment & relevant reduction of units of RBC transfusions by an absolute number of at least 4 units of PRBCs/8 weeks compared with the pretreatment transfusion number in the previous 8 weeks. Only RBC transfusions given for a Hgb of ≤ 9.0 g/dL pretreatment will count in the RBC transfusion response evaluation. HI-P: Absolute increase of ≥ 30 x 109/L over pretreatment or patients starting with ≥ 20 x 109/L platelets OR increase from \<20 x 109/L at pretreatment to \> 20 x 109/L and by at least 100%. HI-N: At least 100% increase and an absolute increase \> 0.5 x 109/L over pretreatment value.
Clinical Response Other Than Composite Clinical Response for Myeloid Dysplastic Syndromes(MDS)/Chronic Myelomonocytic Leukemia (CMML) Patients Per Investigator (Phase Llb)48 monthsThis is the best overall response as measured by Clinical response. Clinical response is defined as having complete remission (CR), bone marrow complete remission (BM-CR), partial remission or hematologic improvement (HI) as defined by the International Working Group (IWG) response criteria.
Time to Progression (TTP) (Phase Llb)48 monthsTime to progression (TTP) was defined as the time from the date of randomization to the date of the first documented PD per investigator's assessment or death due to study indication. Time to progression was analyzed by the Kaplan Meier method. Based on the Guidelines for Implementation of international working group (IWG) response criteria in AML, MDS and CMML according to Cheson 2003 and 2006.
1-year Survival Rate (Phase Llb)12 monthsOverall survival was defined as the time from date of randomization to date of death due to any cause. If a patient was not known to have died, survival was censored at the date of last contact. Patients not known to have died were censored for 'Lost to follow-up' if the time between their last contact date and the analysis cut-off date was longer than 3 months and 2 weeks (104 days) during the first year after study evaluation completion, and longer than 6 months and 2 weeks (194 days), thereafter. The 1-year survival rate was obtained from the Kaplan-Meier analysis of overall survival, and its variance was estimated by Greenwood's formula.
Clinical Response Other Than Composite Clinical Response for Acute Myelogenous Leukemia (AML) Patients Per Investigator (Phase Llb)48 monthsThis is the best overall response as measured by Clinical response. Clinical response is defined as having complete remission (CR), complete remission with incomplete blood count recovery (CRi) or partial remission as defined by the International Working Group (IWG) response criteria.
Overall Response Rate (ORR) Assessed by Best Overall Response: Participants With MDS/CMML Per Investigator (Phase Llb)48 monthsBest overall response as measured by complete remission (CR) or bone marrow CR (BM-CR) or partial remission (PR) or hematologic improvement (HI). Overall response patients achieved other than the composite CR by individual response category: CR, CRi, mCR or PR as defined by the International Working Group (IWG) response criteria.

Countries

Austria, Belgium, Canada, France, Germany, Hungary, Italy, South Korea, Spain, Sweden, Switzerland, Thailand, United Kingdom, United States

Participant flow

Recruitment details

In phase l a total of 31 patients were treated with escalating dose of PAN, 20 mg 30 mg & 40 mg. In phase ll a total of 82 patients were actually randomized with 40 patients assigned to PAN+5-Aza and 42 patients assigned to 5-Aza.

Pre-assignment details

For phase I, approximately 26 patients were planned to be enrolled in cohorts of at least three MTD evaluable patients per dose level. For phase ll, approximately 80 patients were planned to be enrolled, 40 patients per arm.

Participants by arm

ArmCount
PAN + 5-Aza 20 mg
In this escalating phase, participants took panobinostat of 20 mg delivered orally at Day 3, Day 5, Day 8, Day 10, Day 12, Day 15 and a fixed dose of 5-Azacytidine (5-Aza) at 75 mg/m2/day for 7 days in Week 1 of each cycle.
6
PAN + 5-Aza 30 mg
In this escalating phase, participants took panobinostat of 30 mg delivered orally at Day 3, Day 5, Day 8, Day 10, Day 12, Day 15 and a fixed dose of 5-Azacytidine (5-Aza) at 75 mg/m2/day for 7 days in Week 1 of each cycle.
18
PAN + 5-Aza 40 mg
In this escalating phase, participants took panobinostat of 40 mg delivered orally at Day 3, Day 5, Day 8, Day 10, Day 12, Day 15 and a fixed dose of 5-Azacytidine (5-Aza) at 75 mg/m2/day for 7 days in Week 1 of each cycle.
7
Panobinostat + 5-Azacytidine
In phase II: Panobinostat : Rapid Phase II doses at 30 mg delivered orally at Day 3, Day 5, Day 8, Day 10, Day 12, Day 15. In both phases, dose of 5-Azacytidine was 75 mg/m\^2, subcutaneously Daily for Day 1 to Day 7.
40
5-Azacytidine
The dose of 5-Aza was fixed at 75 mg/m2/day for 7 days in Week 1 of each cycle. 5-Aza was sourced locally, except in 4 countries (Hungary, Switzerland, UK, and Spain, for which a central purchase was used by Novartis. Dose of 5-Azacytidine : 75 mg/m\^2 subcutaneously daily from Day 1 to Day 7.
42
Total113

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004
Phase 1 PartAbnormal values02000
Phase 1 PartAdverse Event25300
Phase 1 PartDisease progression36100
Phase 1 PartReason missing01000
Phase 1 PartWithdrawal by Subject14300
Phase ll PartAdministrative problems00038
Phase ll PartAdverse Event000106
Phase ll PartDeath00074
Phase ll PartDisease progression000614
Phase ll PartProtocol Violation00042
Phase ll PartSubj cond no longer required study drug00020
Phase ll PartUntreated00002
Phase ll PartWithdrawal by Subject00086

Baseline characteristics

CharacteristicPAN + 5-Aza 20 mgPAN + 5-Aza 30 mgPAN + 5-Aza 40 mgPanobinostat + 5-Azacytidine5-AzacytidineTotal
Age, Customized
< 65
1 participants5 participants1 participants14 participants8 participants29 participants
Age, Customized
>= 65
5 participants13 participants6 participants26 participants34 participants84 participants
Race/Ethnicity, Customized
Asian
0 participants0 participants0 participants7 participants2 participants9 participants
Race/Ethnicity, Customized
Black
0 participants0 participants1 participants1 participants0 participants2 participants
Race/Ethnicity, Customized
Caucasian
5 participants15 participants6 participants29 participants36 participants91 participants
Race/Ethnicity, Customized
Other
1 participants3 participants0 participants3 participants4 participants11 participants
Sex: Female, Male
Female
2 Participants10 Participants4 Participants11 Participants17 Participants44 Participants
Sex: Female, Male
Male
4 Participants8 Participants3 Participants29 Participants25 Participants69 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
deaths
Total, all-cause mortality
0 / 61 / 182 / 76 / 383 / 4212 / 111
other
Total, other adverse events
6 / 618 / 187 / 738 / 3838 / 42107 / 111
serious
Total, serious adverse events
5 / 615 / 186 / 728 / 3828 / 4282 / 111

Outcome results

Primary

Composite Complete Response (Phase Llb)

Composite complete response is defined as complete response (CR), Complete response with incomplete blood count recovery (CRi) or bone marrow complete response (BM-CR) as defined by the International Working Group (IWG) response criteria.

Time frame: 48 months

Population: Full analysis set: Consisted of all patients who were randomized to one of the two treatment arms

ArmMeasureValue (NUMBER)
PAN + 5-Aza 20 mgComposite Complete Response (Phase Llb)27.5 Percentage of participants
PAN + 5-Aza 30 mgComposite Complete Response (Phase Llb)14.3 Percentage of participants
Primary

Number of Dose Limiting Toxicity (DLT) (Phase lb)

Dose limiting toxicity (DLT) was defined as a toxicity requiring treatment withdrawal and included the following: Non-hematologic toxicity qualifying for DLT and Hematologic toxicity qualifying for DLT

Time frame: within the first 28 days (cycle 1)

Population: Maximum Tolerated Dose (MTD) determining set: Consisted of all patients of the safety set who either received sufficient study treatment as defined in the minimum exposure criteria in Cycle 1 (patients had to have 100% of the planned dose of each compound), and had sufficient safety evaluations or discontinued due to DLT in Cycle 1.

ArmMeasureValue (NUMBER)
PAN + 5-Aza 20 mgNumber of Dose Limiting Toxicity (DLT) (Phase lb)2 DLTs
PAN + 5-Aza 30 mgNumber of Dose Limiting Toxicity (DLT) (Phase lb)6 DLTs
PAN + 5-Aza 40 mgNumber of Dose Limiting Toxicity (DLT) (Phase lb)4 DLTs
Primary

Number of Participants With Dose Limiting Toxicity (DLT) (Phase lb)

Dose limiting toxicity (DLT) was defined as a toxicity requiring treatment withdrawal and included the following: Non-hematologic toxicity qualifying for DLT and Hematologic toxicity qualifying for DLT

Time frame: within the first 28 days (cycle 1)

Population: Maximum Tolerated Dose (MTD) determining set: Consisted of all patients of the safety set who either received sufficient study treatment as defined in the minimum exposure criteria in Cycle 1 (patients had to have 100% of the planned dose of each compound), and had sufficient safety evaluations or discontinued due to DLT in Cycle 1.

ArmMeasureValue (NUMBER)
PAN + 5-Aza 20 mgNumber of Participants With Dose Limiting Toxicity (DLT) (Phase lb)1 Participants
PAN + 5-Aza 30 mgNumber of Participants With Dose Limiting Toxicity (DLT) (Phase lb)3 Participants
PAN + 5-Aza 40 mgNumber of Participants With Dose Limiting Toxicity (DLT) (Phase lb)2 Participants
Secondary

1-year Survival Rate (Phase Llb)

Overall survival was defined as the time from date of randomization to date of death due to any cause. If a patient was not known to have died, survival was censored at the date of last contact. Patients not known to have died were censored for 'Lost to follow-up' if the time between their last contact date and the analysis cut-off date was longer than 3 months and 2 weeks (104 days) during the first year after study evaluation completion, and longer than 6 months and 2 weeks (194 days), thereafter. The 1-year survival rate was obtained from the Kaplan-Meier analysis of overall survival, and its variance was estimated by Greenwood's formula.

Time frame: 12 months

Population: Full analysis set: Consisted of all patients who were randomized to one of the two treatment arms

ArmMeasureValue (MEDIAN)
PAN + 5-Aza 20 mg1-year Survival Rate (Phase Llb)14.9 months
PAN + 5-Aza 30 mg1-year Survival Rate (Phase Llb)15.6 months
Secondary

Clinical Response Other Than Composite Clinical Response for Acute Myelogenous Leukemia (AML) Patients Per Investigator (Phase Llb)

This is the best overall response as measured by Clinical response. Clinical response is defined as having complete remission (CR), complete remission with incomplete blood count recovery (CRi) or partial remission as defined by the International Working Group (IWG) response criteria.

Time frame: 48 months

Population: Full analysis set: Consisted of all patients who were randomized to one of the two treatment arms

ArmMeasureValue (NUMBER)
PAN + 5-Aza 20 mgClinical Response Other Than Composite Clinical Response for Acute Myelogenous Leukemia (AML) Patients Per Investigator (Phase Llb)22.2 Percentage of participants
PAN + 5-Aza 30 mgClinical Response Other Than Composite Clinical Response for Acute Myelogenous Leukemia (AML) Patients Per Investigator (Phase Llb)30.8 Percentage of participants
Secondary

Clinical Response Other Than Composite Clinical Response for Myeloid Dysplastic Syndromes(MDS)/Chronic Myelomonocytic Leukemia (CMML) Patients Per Investigator (Phase Llb)

This is the best overall response as measured by Clinical response. Clinical response is defined as having complete remission (CR), bone marrow complete remission (BM-CR), partial remission or hematologic improvement (HI) as defined by the International Working Group (IWG) response criteria.

Time frame: 48 months

Population: Full analysis set: Consisted of all patients who were randomized to one of the two treatment arms

ArmMeasureValue (NUMBER)
PAN + 5-Aza 20 mgClinical Response Other Than Composite Clinical Response for Myeloid Dysplastic Syndromes(MDS)/Chronic Myelomonocytic Leukemia (CMML) Patients Per Investigator (Phase Llb)41.9 Percentage of participants
PAN + 5-Aza 30 mgClinical Response Other Than Composite Clinical Response for Myeloid Dysplastic Syndromes(MDS)/Chronic Myelomonocytic Leukemia (CMML) Patients Per Investigator (Phase Llb)41.4 Percentage of participants
Secondary

Hematologic Improvement (HI) for Myeloid Dysplastic Syndromes(MDS)/Chronic Myelomonocytic Leukemia (CMML) Patients Per Investigator (Phase Llb)

Hematologic response consists of Erythroid response (HI-E), Platelet response (HI-P) and Neutrophil response (HI-N). HI-E: Hgb increase by ≥ 1.5 g/dL over pretreatment & relevant reduction of units of RBC transfusions by an absolute number of at least 4 units of PRBCs/8 weeks compared with the pretreatment transfusion number in the previous 8 weeks. Only RBC transfusions given for a Hgb of ≤ 9.0 g/dL pretreatment will count in the RBC transfusion response evaluation. HI-P: Absolute increase of ≥ 30 x 109/L over pretreatment or patients starting with ≥ 20 x 109/L platelets OR increase from \<20 x 109/L at pretreatment to \> 20 x 109/L and by at least 100%. HI-N: At least 100% increase and an absolute increase \> 0.5 x 109/L over pretreatment value.

Time frame: 48 months

Population: Full analysis set: Consisted of all patients who were randomized to one of the two treatment arms

ArmMeasureGroupValue (NUMBER)
PAN + 5-Aza 20 mgHematologic Improvement (HI) for Myeloid Dysplastic Syndromes(MDS)/Chronic Myelomonocytic Leukemia (CMML) Patients Per Investigator (Phase Llb)Erythroid response (HI-E)25.8 Percentage of participants
PAN + 5-Aza 20 mgHematologic Improvement (HI) for Myeloid Dysplastic Syndromes(MDS)/Chronic Myelomonocytic Leukemia (CMML) Patients Per Investigator (Phase Llb)Platelet response (HI-P)35.5 Percentage of participants
PAN + 5-Aza 20 mgHematologic Improvement (HI) for Myeloid Dysplastic Syndromes(MDS)/Chronic Myelomonocytic Leukemia (CMML) Patients Per Investigator (Phase Llb)Neutrophil response (HI-N)19.4 Percentage of participants
PAN + 5-Aza 30 mgHematologic Improvement (HI) for Myeloid Dysplastic Syndromes(MDS)/Chronic Myelomonocytic Leukemia (CMML) Patients Per Investigator (Phase Llb)Platelet response (HI-P)24.1 Percentage of participants
PAN + 5-Aza 30 mgHematologic Improvement (HI) for Myeloid Dysplastic Syndromes(MDS)/Chronic Myelomonocytic Leukemia (CMML) Patients Per Investigator (Phase Llb)Erythroid response (HI-E)31.0 Percentage of participants
PAN + 5-Aza 30 mgHematologic Improvement (HI) for Myeloid Dysplastic Syndromes(MDS)/Chronic Myelomonocytic Leukemia (CMML) Patients Per Investigator (Phase Llb)Neutrophil response (HI-N)13.8 Percentage of participants
Secondary

Overall Response Rate (ORR) Assessed by Best Overall Response: Participants With AML Per Investigator (Phase Llb)

Best overall response as measured by complete remission (CR) or complete response with incomplete blood count recovery (CRi) or partial remission (PR). Overall response patients achieved other than the composite CR by individual response category: CR, CRi or PR.

Time frame: 48 months

Population: Full analysis set (FAS): Consisted of all patients who were randomized to one of the two treatment arms.

ArmMeasureGroupValue (NUMBER)
PAN + 5-Aza 20 mgOverall Response Rate (ORR) Assessed by Best Overall Response: Participants With AML Per Investigator (Phase Llb)Clinical response (CR, CRi, PR)22.2 Percentage of participants
PAN + 5-Aza 20 mgOverall Response Rate (ORR) Assessed by Best Overall Response: Participants With AML Per Investigator (Phase Llb)Complete remission (CR)11.1 Percentage of participants
PAN + 5-Aza 20 mgOverall Response Rate (ORR) Assessed by Best Overall Response: Participants With AML Per Investigator (Phase Llb)Compl remiss. with incompl blood cnt recovery(CRi)11.1 Percentage of participants
PAN + 5-Aza 20 mgOverall Response Rate (ORR) Assessed by Best Overall Response: Participants With AML Per Investigator (Phase Llb)Partial remission (PR)0.0 Percentage of participants
PAN + 5-Aza 30 mgOverall Response Rate (ORR) Assessed by Best Overall Response: Participants With AML Per Investigator (Phase Llb)Partial remission (PR)7.7 Percentage of participants
PAN + 5-Aza 30 mgOverall Response Rate (ORR) Assessed by Best Overall Response: Participants With AML Per Investigator (Phase Llb)Clinical response (CR, CRi, PR)30.8 Percentage of participants
PAN + 5-Aza 30 mgOverall Response Rate (ORR) Assessed by Best Overall Response: Participants With AML Per Investigator (Phase Llb)Compl remiss. with incompl blood cnt recovery(CRi)7.7 Percentage of participants
PAN + 5-Aza 30 mgOverall Response Rate (ORR) Assessed by Best Overall Response: Participants With AML Per Investigator (Phase Llb)Complete remission (CR)15.4 Percentage of participants
Secondary

Overall Response Rate (ORR) Assessed by Best Overall Response: Participants With MDS/CMML Per Investigator (Phase Llb)

Best overall response as measured by complete remission (CR) or bone marrow CR (BM-CR) or partial remission (PR) or hematologic improvement (HI). Overall response patients achieved other than the composite CR by individual response category: CR, CRi, mCR or PR as defined by the International Working Group (IWG) response criteria.

Time frame: 48 months

Population: Full analysis set (FAS): Consisted of all patients who were randomized to one of the two treatment arms.

ArmMeasureGroupValue (NUMBER)
PAN + 5-Aza 20 mgOverall Response Rate (ORR) Assessed by Best Overall Response: Participants With MDS/CMML Per Investigator (Phase Llb)Clinical response (CR, BM-CR, PR, HI)41.9 Percentage of participants
PAN + 5-Aza 20 mgOverall Response Rate (ORR) Assessed by Best Overall Response: Participants With MDS/CMML Per Investigator (Phase Llb)Complete remission (CR)16.1 Percentage of participants
PAN + 5-Aza 20 mgOverall Response Rate (ORR) Assessed by Best Overall Response: Participants With MDS/CMML Per Investigator (Phase Llb)Bone marrow CR (BM-CR)12.9 Percentage of participants
PAN + 5-Aza 20 mgOverall Response Rate (ORR) Assessed by Best Overall Response: Participants With MDS/CMML Per Investigator (Phase Llb)Partial remission (PR)0.0 Percentage of participants
PAN + 5-Aza 30 mgOverall Response Rate (ORR) Assessed by Best Overall Response: Participants With MDS/CMML Per Investigator (Phase Llb)Partial remission (PR)6.9 Percentage of participants
PAN + 5-Aza 30 mgOverall Response Rate (ORR) Assessed by Best Overall Response: Participants With MDS/CMML Per Investigator (Phase Llb)Clinical response (CR, BM-CR, PR, HI)41.4 Percentage of participants
PAN + 5-Aza 30 mgOverall Response Rate (ORR) Assessed by Best Overall Response: Participants With MDS/CMML Per Investigator (Phase Llb)Bone marrow CR (BM-CR)3.4 Percentage of participants
PAN + 5-Aza 30 mgOverall Response Rate (ORR) Assessed by Best Overall Response: Participants With MDS/CMML Per Investigator (Phase Llb)Complete remission (CR)6.9 Percentage of participants
Secondary

Time to Progression (TTP) (Phase Llb)

Time to progression (TTP) was defined as the time from the date of randomization to the date of the first documented PD per investigator's assessment or death due to study indication. Time to progression was analyzed by the Kaplan Meier method. Based on the Guidelines for Implementation of international working group (IWG) response criteria in AML, MDS and CMML according to Cheson 2003 and 2006.

Time frame: 48 months

Population: Full analysis set: Consisted of all patients who were randomized to one of the two treatment arms

ArmMeasureValue (MEDIAN)
PAN + 5-Aza 20 mgTime to Progression (TTP) (Phase Llb)NA months
PAN + 5-Aza 30 mgTime to Progression (TTP) (Phase Llb)15.2 months

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