RALLY-MF: A Phase 1b/2 Open-Label Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Clinical Activity of DISC-0974 in Participants With Myelofibrosis or Myelodysplastic Syndrome and Anemia
Overview
- Phase
- Phase 1
- Intervention
- DISC-0974
- Conditions
- Myelofibrosis; Anemia
- Sponsor
- Disc Medicine, Inc
- Enrollment
- 150
- Locations
- 35
- Primary Endpoint
- Incidence of treatment-emergent adverse events (Phase 1b only)
- Status
- Recruiting
- Last Updated
- yesterday
Overview
Brief Summary
This phase 1b/2a open-label study will assess the safety, tolerability, pharmacokinetics and pharmacodynamics of DISC-0974 as well as categorize the effects on anemia response in subjects with myelofibrosis or myelodysplastic syndrome and anemia.
Investigators
Eligibility Criteria
Inclusion Criteria
- •for Participants with MF and Anemia
- •Participants are eligible for the study if all of the following criteria apply:
- •Age 18 years or older at the time of signing the informed consent form (ICF).
- •For Phase 1b: DIPSS score of 3 to 4 (intermediate 2 risk) or ≥5 (high-risk) primary MF, post PV MF, and/or post ET MF, as confirmed in the most recent local bone marrow biopsy report, according to WHO 2016 criteria.55
- •For Phase 2: In addition to the criteria above, DIPSS score of ≥2 (intermediate 1 risk) may also be included.
- •Washout of at least 28 days prior to Screening of the following treatments:
- •Immunomodulators (lenalidomide, thalidomide)
- •Luspatercept/sotatercept
- •Systemic corticosteroids are permitted for non-hematological conditions if stable or decreasing dose for ≥28 days prior to Screening and receiving an equivalent to ≤10 mg prednisone for the 28 days immediately prior to Screening.
- •Screening can begin before the 28 day washout is completed, but the washout period must be completed prior to collection of Screening blood samples.
Exclusion Criteria
- •Exclusion Criteria for Participants with MF and Anemia
- •Participants are excluded from the study if any of the following criteria apply:
- •Medical History, Participants with MF and Anemia
- •Hereditary hemochromatosis
- •Hemoglobinopathy or intrinsic RBC defect associated with anemia
- •Total splenectomy
- •Hematopoietic cell transplant within the past 2 years or graft vs host disease requiring immunosuppression
- •Current anemia from iron deficiency, vitamin B12 or folate deficiency, infection, or bleeding
- •Active immune-mediated hemolytic anemia
- •Symptomatic bleeding, unrelated to surgery, in a critical area or organ and/or bleeding causing a decrease in Hgb of ≥2 g/dL or leading to transfusion of ≥2 units of RBCs in the 6 months prior to Screening
Arms & Interventions
Phase 1b: Dose Escalation
In the Phase 1b (dose-escalation) portion of the study, DISC-0974 will be administered subcutaneously every 4 weeks.
Intervention: DISC-0974
Phase 2: Expansion
In the Phase 2 (expansion) portion of the study, DISC-0974 will be administered subcutaneously every 4 weeks.
Intervention: DISC-0974
Outcomes
Primary Outcomes
Incidence of treatment-emergent adverse events (Phase 1b only)
Time Frame: up to 225 days
Incidence of clinically abnormal vital signs (Phase 1b only)
Time Frame: up to 225 days
Incidence of clinically abnormal physical exam (Phase 1b only)
Time Frame: up to 225 days
Incidence of clinically abnormal electrocardiograms (Phase 1b only)
Time Frame: up to 225 days
Incidence of abnormal laboratory test results (Phase 1b only)
Time Frame: up to 225 days
Transfusion-dependent (TD) high cohort: transfusion independence, defined as the absence of packed red blood cell (PRBC) transfusions over any rolling 12-week interval during the treatment period with a minimum hemoglobin (Hgb) of 7 g/dL (Phase 2 only)
Time Frame: up to 225 days
TD low cohort: transfusion independence, defined as the absence of PRBC transfusions over any rolling 16 week interval during the treatment period with a minimum Hgb of 7 g/dL (Phase 2 only)
Time Frame: up to 225 days
Non-transfusion-dependent (nTD) cohort: anemia response, defined as the composite of the absence of transfusions over any rolling 12 week period and a concomitant mean Hgb increase of ≥1.5 g/dL over baseline (Phase 2 only)
Time Frame: up to 225 days
Secondary Outcomes
- Anemia response defined per IWG-MRT criteria (Phase 1b only)(up to 225 days)
- TD high and TD low participants will be evaluated for absence of PRBC transfusions for a consecutive, "rolling" 12 week interval during the treatment period (Phase 1b only)(up to 225 days)
- TD high participants will be evaluated for absence of PRBC transfusions with minimum Hgb of 7 g/dL during a terminal 12 week interval during the treatment period (Phase 1b only)(up to 225 days)
- TD low participants will be evaluated for absence of PRBC transfusions with minimum Hgb of 7 g/dL during any rolling 16-week interval during the treatment period (Phase 1b only)(up to 225 days)
- nTD participants will be evaluated for ≥1.5 g/dL increase from baseline Hgb levels during the treatment period (Phase 1b only)(up to 225 days)
- nTD participants will be evaluated for the composite of the absence of transfusions over any rolling 12 week period and a concomitant mean Hgb increase of ≥1.5 g/dL over baseline (Phase 1b only)(up to 225 days)
- Safety, tolerability, PK, and PD of DISC-0974 following repeated SC doses in participants with myelodysplastic syndrome (MDS) or MDS/myeloproliferative neoplasm (MPN) without excess blasts (collectively referred to as MDS) and anemia (Phase 1b only)(up to 225 days)
- Proportion of participants achieving a mean Hgb increase ≥1 g/dL or ≥2 g/dL from baseline over any rolling 12-week period in absence of RBC transfusions in each cohort (Phase 1b and 2)(up to 225 days)
- Change from baseline in concentration of iron laboratory parameters (Phase 1b and 2)(up to 225 days)
- Change from baseline in concentration of hematologic laboratory parameters (Phase 1b and 2)(up to 225 days)
- Rate and units of RBC transfusion per participant month during the treatment period for each cohort (Phase 1b and 2)(up to 225 days)
- Transfusion-dependent cohorts will be evaluated for proportion of participants who reduce their transfusion requirement by 50%, compared to baseline, over any rolling 12-week period during treatment (Phase 1b and 2)(up to 225 days)
- nTD participants will be evaluated for longest duration of mean Hgb increase of ≥1.5 g/dL from baseline during the treatment period (Phase 1b and 2)(up to 225 days)
- Mean change in Hgb over 12-week treatment periods will be evaluated for all cohorts (nTD, TD low, TD high) (Phase 1b and 2)(up to 225 days)
- Maximum duration of RBC-transfusion-independent response for TD participants (Phase 1b and 2)(up to 225 days)
- Proportion of participants that require dose escalation in each cohort (Phase 1b and 2)(up to 225 days)
- Proportion of participants that improve Functional Assessment of Cancer Therapy-Anemia (FACT-An) subscale by at least 3 points in each cohort during the treatment period (Phase 1b and 2)(up to 225 days)
- Mean hemoglobin increase of ≥1.5 g/dL over a rolling 12-week interval and an increase in Functional Assessment of Chronic Illness Therapy (FACIT)-Fatigue of 3 points by the end of study (EOS) for nTD participants (Phase 1b and 2)(up to 225 days)
- TD high cohort will be evaluated for absence of packed red blood cell (PRBC) transfusions a terminal 12 week interval during the treatment period with a minimum hemoglobin (Hgb) of 7 g/dL (Phase 1b and 2)(up to 225 days)
- TD low cohort: will be evaluated for the absence of PRBC transfusions a terminal 16 week interval during the treatment period with a minimum Hgb of 7 g/dL (Phase 1b and 2)(up to 225 days)
- Non-transfusion-dependent (nTD) cohort: anemia response, defined as the composite of the absence of transfusions over any rolling 12 week period and a concomitant mean Hgb increase of ≥1.5 g/dL over baseline (Phase 1b and 2)(up to 225 days)
- Incidence of treatment-emergent adverse events (Phase 2 only)(up to 225 days)
- Incidence of clinically abnormal vital signs (Phase 2 only)(up to 225 days)
- Incidence of clinically abnormal physical exam (Phase 2 only)(up to 225 days)
- Incidence of clinically abnormal electrocardiogram (Phase 2 only)(up to 225 days)
- Incidence of abnormal laboratory test results (Phase 2 only)(up to 225 days)
- Safety and tolerability of DISC-0974 following repeated SC doses in participants with MF receiving concomitant momelotinib or pacritinib therapy as assessed by TEAEs, vital signs, physical examinations, ECGs, and blood and urine testing (Phase 2 only)(225 days)
- Cmax-Maximum drug concentration measured in plasma (Phase 1b and 2)(up to 225 days)
- Tmax-Time of maximum drug concentration (Phase 1b and 2)(up to 225 days)
- AUC-Area under the drug concentration time curve (Phase 1b and 2)(up to 225 days)
- Additional PK analysis using a population PK analysis approach may be considered. (Phase 1b and 2)(up to 225 days)