A Phase 3 interventional study of Pracinostat and Placebos in Acute Myeloid Leukemia, sponsored by Helsinn Healthcare SA. Terminated at 138 sites in 16 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-03-10.
Sponsored by Helsinn Healthcare SA · Phase 3, Interventional, and Treatment
This is a Phase III, multicenter, double-blind, randomized study of pracinostat vs. placebo with azacitidine (AZA) as background therapy in patients ≥ 18 years of age with newly diagnosed acute myeloid leukemia (AML), excluding acute promyelocytic leukemia and cytogenetic low-risk AML, who are unfit to receive intensive remission induction chemotherapy due to age ≥ 75 years or comorbidities. Patients will be randomized in a 1:1 ratio to one of two groups: Group A (experimental group) to receive pracinostat plus AZA and Group B (control group) to receive placebo plus AZA. Randomization will be stratified by cytogenetic risk category (intermediate vs. unfavorable-risk, according to SWOG Cytogenetic Risk Category Definitions) and ECOG performance status (0-1 vs. 2). Treatments will be administered based on 28-day cycles, with pracinostat/placebo administered orally once every other day, 3 times a week for 3 weeks, followed by one week of no treatment and AZA administered for 7 days of each cycle. Study treatment should continue until there is documented disease progression, relapse from complete remission (CR), or non-manageable toxicity. A minimum of 6 cycles may be required to achieve a complete remission. Once permanently discontinued from study treatment, patients will enter the Long-term Follow-up phase of the study and will be followed for assessment of disease progression, if applicable, and survival every 3 months (±1 month) until death. The end of this study is defined when 390 events (deaths) have occurred and the study is unblinded for final overall survival analysis. Patients who are receiving study treatment at the end of the study may have the opportunity to continue to receive the study drugs to which they were randomized to (Post- Study Observation Period), until the Sponsor informs the Investigators of the appropriate course of action based on the study results. The Post-Study Observation Period is defined as the period starting from the end of the study for a maximum of 12 months.
5,442 studies on the registry are indexed under Leukemia; 637 are open to participants now.
This study's enrollment of 406 is above the median of 38 across 4,248 interventional studies indexed under Leukemia.
Browse Leukemia studies →Helsinn Healthcare SA is the lead sponsor of 31 studies on the registry; 1 is open to participants now.
Of its 8 completed or terminated interventional studies of FDA-regulated products, 7 (88%) have results posted.
Counted across the registry records on this site, refreshed daily.
Unable to receive intensive chemotherapy regimens at enrollment, based on one of the following:
I. Age ≥ 75 years, or
II. Age \< 75 years with at least 1 of the following co-morbidities:
i. Left ventricular ejection fraction (LVEF) ≤ 50%, measured within 3 months prior to Day 1 confirmed by ECHO/MUGA ii. Congestive heart failure requiring medical therapy iii. Chronic stable angina requiring medical therapy iv. Prior cerebrovascular accident with sequelae c. Clinically significant pulmonary disease defined as: i. Forced expiratory volume in 1 second (FEV1) ≤ 65% of expected ii. Lung diffusing capacity for carbon monoxide (DLCO) ≤ 65% of expected Confirmed by pulmonary tests. d. Diabetes mellitus with symptomatic end-organ damage (e.g., retinopathy, nephropathy, neuropathy, vasculopathy) e. Autoimmune inflammatory conditions (e.g., rheumatoid arthritis, systemic lupus erythematous, inflammatory bowel disease, or similar) requiring chronic disease modifying therapy (e.g., etanercept, adalimumab, infliximab, rituximab, methotrexate, or similar) f. Class III obesity defined as a Body Mass Index (BMI) > 40 kg/m2 g. Renal impairment defined as serum creatinine > 1.3 mg/dL (> 115 µmol/L) or creatinine clearance \<70 ml/min h. Clinically significant cognitive impairment defined as requiring medical therapy and/or assistance with activities of daily living
Adequate organ function as evidenced by the following laboratory findings:
Exclusion Criteria:
Previous chemotherapy for AML except for the following, which are allowed:
60 mg capsule orally, once a day, 3 times a week for 3 weeks, followed by 1 week of rest of each 28-day cycle. As a background therapy azacitidine (AZA) will be administered at a dose of 75 mg/m2 by SC or IV injection daily for 7 days of each 28-day cycle.
Drug: Pracinostat · Drug: Azacitidine
1 capsule orally, once a day, 3 times a week for 3 weeks, followed by 1 week of rest of each 28-day cycle. As a background therapy azacitidine (AZA) will be administered at a dose of 75 mg/m2 by SC or IV injection daily for 7 days of each 28-day cycle.
Drug: Placebos · Drug: Azacitidine
60 mg capsule
Also known as: SB939
capsule
SC or IV injection
Also known as: AZA
Overall Survival
OS measures the time from randomization to death due to any cause.
Time frame: 826 days
Morphologic Complete Remission (CR) Rate
The CR rate is the proportion of patients who achieve a morphologic CR according to the response criteria * \<5% blasts in a bone marrow aspirate sample with spicules * There should be no blasts with Auer rods * No EMD * Absolute Neutrophil Count (ANC) ≥1,000/μL * Platelet count of ≥100,000/μL * Patient must be independent of transfusions (for at least 1week before each assessment)
Time frame: 744 days
Complete Remission Without Minimal Residual Disease (CRmrd) Rate
proportion of patients who achieve a CR without minimal residual disease by multicolor flow cytometry according to the following criteria * Morphologic CR * Minimal Residual Disease (MRD) by MFC negative
Time frame: 826 days
Cytogenetic Complete Remission (CRc) Rate
The CRc rate is the proportion of patients who achieve a reversion to a normal karyotype at CR within the study period. This endpoint applies only to patients with abnormal cytogenetic at enrollment according to the following criterion Morphologic CR plus reversion to a normal karyotype (defined as no clonal abnormalities detected in a minimum of 20 mitotic cells)
Time frame: 826 days
Transfusion Independence (TI)
Transfusion independence rate is defined as the proportion of patients who show eight weeks or over without red blood cell (RBC-TI) and/or platelet (PLT-TI) transfusion during study period
Time frame: 826 days
Composite Complete Remission (cCR) Rate
Composite complete remission (cCR) rate is the proportion of patients who achieve either a disease response of CR, CRi or MLFS (i.e., cCR = CR + CRi + MLFS) within the study period, according to the response criteria
Time frame: 744 days
Duration of Composite Complete Remission
Duration of cCR response is the time from first cCR until documented relapse (the definition of relapse from CR will be applied) or death. Duration of cCR is only defined for patients who achieve a cCR
Time frame: 744 days
Change in Quality of Life From Baseline (EORTC QLQ-C30 - European Organisation for Research and Treatment of Cancer Quality-of-life Questionnaire Core 30)
QLQ-C30 is made of multi-item scales and single-item measures (functional and symptom scales, a global health status/QoL scale and single items). Item range is the difference between possible max and min response to individual items of the scale; most items take values from 1 to 4 (range=3). Global health status takes values from 1 to 7 (range = 6). For statistical analysis purpose, single-item and scale values were all standardized (according to linear transformation described in Scoring Manual) to obtain scores ranging 0-100. An high scale score represents an higher response level. Thus an high score for a functional scale represents an high/healthy level of functioning, an high score for the global health status/QoL represents a high QoL, an high score for a symptom scale/item represents an high level of symptomatology/problems.
Time frame: from baseline up to 660 days
Relapse Free Survival
the time from the date of achievement of CR or CRi until the date of relapse or death from any cause
Time frame: 744 days
Progressive Free Survival Rate (PFS)
PFS is defined as the time from the date of randomization until the date of relapse (progression), or death from any cause, whichever occurs first.
Time frame: 800 days
Duration of Morphologic CR
Duration of morphologic CR is defined as the time from the date of achievement of CR until the date of relapse (progression).
Time frame: 744 days
Time to CR
Time to CR is defined as the time from the date of randomization until the date of CR in the absence of interceding therapies. The analysis set was the ITT set.
Time frame: 616 days
Morphologic CR Within 6 Cycles Rate
Morphologic CR within 6 cycles rate is defined as the proportion of patients who achieved CR in the absence of interceding therapies within 6 treatment cycles (i.e., during treatment phase up to Day 1 of Cycle 7 included). Analysis was performed in the ITT set.
Time frame: within 6 cycles
Approx. 130 sites worldwide (planned), 116 sites where patients were randomized. Date of 1st patient screened: 12 Jul 2017 and Date of last patient completed: 08 Aug 2020 A total of 725 patients were screened. Of these, 319 were considered screening failures, so a total of 406 patients were randomized
| Milestone | Pracinostat Plus AZA | Placebo Plus AZA |
|---|---|---|
| Started | 203 | 203 |
| Treated | 201 | 201 |
| Completed | 0 | 0 |
| Not completed | 203 | 203 |
| Withdrew: Adverse event | 24 | 23 |
| Withdrew: Death | 46 | 26 |
| Withdrew: Physician decision | 13 | 19 |
| Withdrew: Withdrawal by subject | 16 | 20 |
| Withdrew: Progressive disease | 45 | 61 |
| Withdrew: Non-compliance by patient | 1 | 0 |
| Withdrew: Other reasons | 56 | 52 |
| Withdrew: Randomized and not treated | 2 | 2 |
OS measures the time from randomization to death due to any cause.
| days | Pracinostat Plus AZA | Placebo Plus AZA |
|---|---|---|
| Overall Survival | 303 (209 to 400) | 303 (248 to 346) |
The CR rate is the proportion of patients who achieve a morphologic CR according to the response criteria * \<5% blasts in a bone marrow aspirate sample with spicules * There should be no blasts with Auer rods * No EMD * Absolute Neutrophil Count (ANC) ≥1,000/μL * Platelet count of ≥100,000/μL * Patient must be independent of transfusions (for at least 1week before each assessment)
| Participants | Pracinostat Plus AZA | Placebo Plus AZA |
|---|---|---|
| Morphologic Complete Remission (CR) Rate | 24 | 35 |
proportion of patients who achieve a CR without minimal residual disease by multicolor flow cytometry according to the following criteria * Morphologic CR * Minimal Residual Disease (MRD) by MFC negative
| Participants | Pracinostat Plus AZA | Placebo Plus AZA |
|---|---|---|
| Complete Remission Without Minimal Residual Disease (CRmrd) Rate | 12 | 20 |
The CRc rate is the proportion of patients who achieve a reversion to a normal karyotype at CR within the study period. This endpoint applies only to patients with abnormal cytogenetic at enrollment according to the following criterion Morphologic CR plus reversion to a normal karyotype (defined as no clonal abnormalities detected in a minimum of 20 mitotic cells)
| Participants | Pracinostat Plus AZA | Placebo Plus AZA |
|---|---|---|
| Cytogenetic Complete Remission (CRc) Rate | 7 | 8 |
Transfusion independence rate is defined as the proportion of patients who show eight weeks or over without red blood cell (RBC-TI) and/or platelet (PLT-TI) transfusion during study period
| Participants | Pracinostat Plus AZA | Placebo Plus AZA |
|---|---|---|
| Transfusion Independence (TI) | 81 | 81 |
Composite complete remission (cCR) rate is the proportion of patients who achieve either a disease response of CR, CRi or MLFS (i.e., cCR = CR + CRi + MLFS) within the study period, according to the response criteria
| Participants | Pracinostat Plus AZA | Placebo Plus AZA |
|---|---|---|
| Composite Complete Remission (cCR) Rate | 73 | 64 |
Duration of cCR response is the time from first cCR until documented relapse (the definition of relapse from CR will be applied) or death. Duration of cCR is only defined for patients who achieve a cCR
| days | Pracinostat Plus AZA | Placebo Plus AZA |
|---|---|---|
| Duration of Composite Complete Remission | 576 (276 to NA) | 319 (170 to 744) |
QLQ-C30 is made of multi-item scales and single-item measures (functional and symptom scales, a global health status/QoL scale and single items). Item range is the difference between possible max and min response to individual items of the scale; most items take values from 1 to 4 (range=3). Global health status takes values from 1 to 7 (range = 6). For statistical analysis purpose, single-item and scale values were all standardized (according to linear transformation described in Scoring Manual) to obtain scores ranging 0-100. An high scale score represents an higher response level. Thus an high score for a functional scale represents an high/healthy level of functioning, an high score for the global health status/QoL represents a high QoL, an high score for a symptom scale/item represents an high level of symptomatology/problems.
| score on a scale | Pracinostat Plus AZA | Placebo Plus AZA |
|---|---|---|
| Global Health Status | -7.040 ± 31.4458 | -2.303 ± 28.6611 |
| Functional Scale - Physical Functioning | -8.937 ± 32.1163 | -7.018 ± 25.8512 |
| Functional Scale - Role Functioning | -6.034 ± 46.3793 | -2.000 ± 40.2659 |
| Symptom Scale - Fatigue | 2.107 ± 34.2928 | 4.240 ± 29.7030 |
| Symptom Scale - Nausea and Vomiting | 5.460 ± 28.1649 | 5.263 ± 23.2870 |
| Symptom Scale - Appetite Loss | 9.771 ± 42.8107 | 3.509 ± 40.2150 |
the time from the date of achievement of CR or CRi until the date of relapse or death from any cause
| days | Pracinostat Plus AZA | Placebo Plus AZA |
|---|---|---|
| Relapse Free Survival | 291 (217 to 429) | 190 (155 to 319) |
PFS is defined as the time from the date of randomization until the date of relapse (progression), or death from any cause, whichever occurs first.
| days | Pracinostat Plus AZA | Placebo Plus AZA |
|---|---|---|
| Progressive Free Survival Rate (PFS) | 217 (126 to 257) | 220 (182 to 271) |
Duration of morphologic CR is defined as the time from the date of achievement of CR until the date of relapse (progression).
| days | Pracinostat Plus AZA | Placebo Plus AZA |
|---|---|---|
| Duration of Morphologic CR | NA (352 to NA) | 319 (119 to 744) |
Time to CR is defined as the time from the date of randomization until the date of CR in the absence of interceding therapies. The analysis set was the ITT set.
| days | Pracinostat Plus AZA | Placebo Plus AZA |
|---|---|---|
| Time to CR | NA (NA to NA) | 361 (311 to NA) |
Morphologic CR within 6 cycles rate is defined as the proportion of patients who achieved CR in the absence of interceding therapies within 6 treatment cycles (i.e., during treatment phase up to Day 1 of Cycle 7 included). Analysis was performed in the ITT set.
| number of patients | Pracinostat Plus AZA | Placebo Plus AZA |
|---|---|---|
| Morphologic CR Within 6 Cycles Rate | 14 | 16 |
Collected over TEAEs are with onset date/time at or after start date/time of first intake of pracinostat /placebo, or AEs with onset date/time prior to start date/time of first intake of pracinostat/placebo that worsen in severity after start date/time of first intake of pracinostat /placebo, up to end of observation period. Observation period is defined as 30 days after last dose of pracinostat/placebo or start of new therapy for AML whichever occurs first up to 672 days. OS was collected up to 826 days.. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Pracinostat Plus AZA | 121/203 (59.6%) | 153/201 (76.1%) | 197/201 (98%) |
| Placebo Plus AZA | 128/203 (63.1%) | 151/201 (75.1%) | 193/201 (96%) |
| Event | Pracinostat Plus AZA | Placebo Plus AZA |
|---|---|---|
| Febrile neutropeniaBlood and lymphatic system disorders | 60/201 | 53/201 |
| PneumoniaInfections and infestations | 25/201 | 31/201 |
| SepsisInfections and infestations | 18/201 | 15/201 |
| PyrexiaGeneral disorders | 11/201 | 15/201 |
| Nervous system disordersNervous system disorders | 10/201 | 9/201 |
| Metabolism and nutrition disordersMetabolism and nutrition disorders | 10/201 | 5/201 |
| Urinary tract infectionInfections and infestations | 9/201 | 6/201 |
| AnaemiaBlood and lymphatic system disorders | 9/201 | 9/201 |
| Vascular disordersVascular disorders | 8/201 | 5/201 |
| InvestigationsInvestigations | 8/201 | 3/201 |
| Event | Pracinostat Plus AZA | Placebo Plus AZA |
|---|---|---|
| NauseaGastrointestinal disorders | 85/201 | 79/201 |
| Respiratory, thoracic and mediastinal disordersRespiratory, thoracic and mediastinal disorders | 73/201 | 85/201 |
| InvestigationsInvestigations | 74/201 | 60/201 |
| AnaemiaBlood and lymphatic system disorders | 59/201 | 69/201 |
| Febrile neutropeniaBlood and lymphatic system disorders | 69/201 | 61/201 |
| VomitingGastrointestinal disorders | 64/201 | 50/201 |
| Nervous system disordersNervous system disorders | 61/201 | 62/201 |
| ConstipationGastrointestinal disorders | 56/201 | 60/201 |
| Musculoskeletal and connective tissue disordersMusculoskeletal and connective tissue disorders | 41/201 | 59/201 |
| Skin and subcutaneous tissue disordersSkin and subcutaneous tissue disorders | 56/201 | 57/201 |
| Age, Categorical(Participants) | Pracinostat Plus AZA | Placebo Plus AZA | Total |
|---|---|---|---|
| <=18 years | 0 | 0 | 0 |
| Between 18 and 65 years | 7 | 5 | 12 |
| >=65 years | 196 | 198 | 394 |
| Age, Continuous(years) | Pracinostat Plus AZA | Placebo Plus AZA | Total |
|---|---|---|---|
| Mean | 75.4 ± 5.48 | 75.1 ± 5.91 | 75.3 ± 5.69 |
| Sex: Female, Male(Participants) | Pracinostat Plus AZA | Placebo Plus AZA | Total |
|---|---|---|---|
| Female | 87 | 87 | 174 |
| Male | 116 | 116 | 232 |
| Race (NIH/OMB)(Participants) | Pracinostat Plus AZA | Placebo Plus AZA | Total |
|---|---|---|---|
| American Indian or Alaska Native | 0 | 1 | 1 |
| Asian | 27 | 26 | 53 |
| Native Hawaiian or Other Pacific Islander | 0 | 1 | 1 |
| Black or African American | 2 | 4 | 6 |
| White | 149 | 140 | 289 |
| More than one race | 3 | 3 | 6 |
| Unknown or Not Reported | 22 | 28 | 50 |
| Region of Enrollment(Participants) | Pracinostat Plus AZA | Placebo Plus AZA | Total |
|---|---|---|---|
| Australia | 34 | 29 | 63 |
| Argentina | 3 | 2 | 5 |
| Brazil | 10 | 15 | 25 |
| Czechia | 10 | 8 | 18 |
| France | 8 | 10 | 18 |
| Germany | 5 | 6 | 11 |
| Hungary | 12 | 14 | 26 |
| Italy | 19 | 11 | 30 |
| Poland | 21 | 13 | 34 |
| South Korea | 8 | 7 | 15 |
| Romania | 10 | 7 | 17 |
| Spain | 24 | 28 | 52 |
| Taiwan | 17 | 18 | 35 |
| United Kingdom | 6 | 11 | 17 |
| United States | 12 | 18 | 30 |
| Austria | 4 | 6 | 10 |
| Height(cm) | Pracinostat Plus AZA | Placebo Plus AZA | Total |
|---|---|---|---|
| Mean | 165.1 ± 10.23 | 165.7 ± 8.96 | 165.4 ± 9.61 |
| Smoking Habits(Participants) | Pracinostat Plus AZA | Placebo Plus AZA | Total |
|---|---|---|---|
| Non-smoker | 130 | 121 | 251 |
| Ex-smoker | 73 | 79 | 152 |
| Current smoker | 0 | 3 | 3 |
| Cytogenetic Risk Category (central Lab results)(Participants) | Pracinostat Plus AZA | Placebo Plus AZA | Total |
|---|---|---|---|
| Intermediate | 109 | 107 | 216 |
| Unfavorable | 51 | 60 | 111 |
| Missing | 43 | 36 | 79 |
4 further baseline measures are reported on the registry.
Showing the first 100 of 138 sites across 16 countries.
Documents are hosted by the registry — open the source record to download them.
This study is terminated, as verified in Feb 2022. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Helsinn Healthcare SA