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Study of the Efficacy and Safety of Parsaclisib in Participants With Primary Warm Autoimmune Hemolytic Anemia

A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study of the Efficacy and Safety of Parsaclisib in Participants With Primary Warm Autoimmune Hemolytic Anemia

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05073458
Acronym
PATHWAY
Enrollment
13
Registered
2021-10-11
Start date
2022-03-15
Completion date
2024-04-29
Last updated
2025-11-03

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

Conditions

Warm Autoimmune Hemolytic Anemia (wAIHA)

Keywords

Warm Autoimmune Hemolytic Anemia (wAIHA)

Brief summary

The purpose of this study is to evaluate the efficacy and safety of parsaclisib compared with placebo in participants with Primary Warm Autoimmune Hemolytic Anemia (wAIHA),

Detailed description

Prospective participants must have primary wAIHA as well as other protocol-defined criteria. After participants have been determined to be eligible for the study, they will be randomized to 2:1, with stratification factor of corticosteroid dose and hemoglobin (Hgb \<9 g/dL or ≥ 9 g/dL). Once a participant has completed the week 24 assessments in the double-blind period, the participant will have the opportunity to receive parsaclisib in the open-label treatment which will last up to another 24 weeks. Participants may then continue to receive parsaclisib in a long-term extension period.

Interventions

DRUGparsaclisinib

parsaclisib will be administered QD orally

DRUGplacebo

placebo will be administered QD orally follwed by Parsaclisinib in the open label period

Sponsors

Incyte Corporation
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Masking description

Study will be a 24 week double-blind period followed by a 24 week open-label period, followed by a long term extension period.

Eligibility

Sex/Gender
ALL
Age
18 Years to 99 Years
Healthy volunteers
No

Inclusion criteria

* Diagnosis of primary warm AIHA. * Participants who have at least 1 unsuccessful prior therapy for warm AIHA or unable to receive or tolerate other therapies. * Hemoglobin ≥ 6.5 to \< 10 g/dL with symptoms of anemia at screening. * FACIT-F score ≤ 43 at screening. * Willingness to avoid pregnancy or fathering children. * Willingness to receive PJP prophylaxis. * Further inclusion criteria apply.

Exclusion criteria

* Women who are pregnant, breastfeeding or who are planning a pregnancy. * Diagnosis of other types of AIHA (CAD, cold agglutinin syndrome, mixed-type AIHA or paroxysmal cold hemoglobinuria). * Secondary warm AIHA from any cause or diagnosis of Evans syndrome. * Splenectomy less than 3 months before randomization. * Participants with a history or ongoing significant illness as assessed by the investigator. * Participants with a current of medical history of a malignancy within the past 5 years except basal or squamous cell skin cancer that has been removed and considered cured, or superficial bladder cancer, prostate intraepithelial neoplasm, carcinoma in situ of the cervix, or other noninvasive or indolent malignancy. * Participants know to be infected with HIV, Hepatitis B, or hepatitis C. * Chronic or current active infectious disease requiring systemic antibiotics, antifungal, or antiviral treatment or exposure to a live vaccine. * Participants with laboratory values outside of the protocol defined ranges. * Further

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants Attaining a Durable Hemoglobin Responseup to Week 24A durable hemoglobin response was defined as hemoglobin ≥10 grams per deciliter (g/dL) with an increase from Baseline of ≥2 g/dL not attributed to rescue therapy at ≥3 of the 4 available visits at Week 12 and/or later during the 24-week double-blind treatment period.

Secondary

MeasureTime frameDescription
Percentage of Participants With a 50 Meter Increase From Baseline to Week 24 in a 6-minute Walk Test (6MWT)Baseline; Week 24The 6MWT is used to evaluate submaximal exercise capacity. It is a self-paced measurement of the distance that a participant can quickly walk on a flat, hard surface in a period of 6 minutes.
Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitBaseline; Day 1; Weeks 8, 12, 16, 20, 24, 28, 32, 40, 48, 56, and every 16 weeks post-Week 56The FACIT-F scale was developed to assess anemia-related fatigue. The FACIT-F is a 13-item measure that assesses self-reported fatigue and its impact upon daily activities and function over the past 7 days. A clinically meaningful change in the FACIT-F score was defined as ≥3-point increase from Baseline. Item scores range from 0 (not at all) to 4 (very much), and the total score ranges from 0 to 52; lower scores indicate greater fatigue. Change from Baseline was calculated as the post-Baseline value minus the Baseline value. End of Treatment, Double-blind Period: assessment performed for participants who discontinued treatment before Week 24. End of Treatment, Open-label Period: assessment performed for participants who discontinued treatment after Week 24 and before Week 56. Follow-up Visit 3 occurred 12 weeks after the end of treatment visit.
Percentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitBaseline; Day 1; Weeks 8, 12, 16, 20, 24, 28, 32, 40, 48, 56, and every 16 weeks post-Week 56The FACIT-F scale was developed to assess anemia-related fatigue. The FACIT-F is a 13-item measure that assesses self-reported fatigue and its impact upon daily activities and function over the past 7 days. A clinically meaningful change in the FACIT-F score was defined as ≥3-point increase from Baseline. Item scores range from 0 (not at all) to 4 (very much), and the total score ranges from 0 to 52; lower scores indicate greater fatigue. Percentage change from Baseline was calculated as (\[the post-Baseline value minus the Baseline value\]/Baseline value) x 100. End of Treatment, Double-blind Period: assessment performed for participants who discontinued treatment before Week 24. End of Treatment, Open-label Period: assessment performed for participants who discontinued treatment after Week 24 and before Week 56. Follow-up Visit 3 occurred 12 weeks after the end of treatment visit.
Change From Baseline in Hemoglobin at Each Post-Baseline VisitBaseline; Day 1; Weeks 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, and every 8 weeks post-Week 56Change from Baseline was calculated as the post-Baseline value minus the Baseline value. End of Treatment, Double-blind Period: assessment performed for participants who discontinued treatment before Week 24. End of Treatment, Open-label Period: assessment performed for participants who discontinued treatment after Week 24 and before Week 56. Follow-up Visits 1, 2, and 3 occurred 4, 8, and 12 weeks, respectively, after the end of treatment visit.
Percentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitBaseline; Day 1; Weeks 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, and every 8 weeks post-Week 56Percentage change from Baseline was calculated as (\[the post-Baseline value minus the Baseline value\]/Baseline value) x 100. End of Treatment, Double-blind Period: assessment performed for participants who discontinued treatment before Week 24. End of Treatment, Open-label Period: assessment performed for participants who discontinued treatment after Week 24 and before Week 56. Follow-up Visits 1, 2, and 3 occurred 4, 8, and 12 weeks, respectively, after the end of treatment visit.
Percentage of Participants With a ≥3-point Increase From Baseline in Functional Assessment of Chronic Illness Therapy - Fatigue (FACIT-F) Score at Week 24Baseline; Week 24The FACIT-F scale was developed to assess anemia-related fatigue. The FACIT-F is a 13-item measure that assesses self-reported fatigue and its impact upon daily activities and function over the past 7 days. A clinically meaningful change in the FACIT-F score was defined as ≥3-point increase from Baseline. Item scores range from 0 (not at all) to 4 (very much), and the total score ranges from 0 to 52; lower scores indicate greater fatigue. Change from Baseline was calculated as the post-Baseline value minus the Baseline value.
Change From Baseline in Daily Corticosteroid Dose at Week 24Baseline; Week 24A new or increased dose of corticosteroids (prednisone or equivalent) from the Day 1 dose was permitted as rescue treatment. Rescue medication was to be considered if the absolute hemoglobin level continued to decline, there was a \> 1 g/dL decrease in hemoglobin from the prior assessment, or the participant developed new or worsening symptoms of wAIHA. Change from Baseline was calculated as the post-Baseline value minus the Baseline value.
Percentage Change From Baseline in Daily Corticosteroid Dose at Week 24Baseline; Week 24A new or increased dose of corticosteroids (prednisone or equivalent) from the Day 1 dose was permitted as rescue treatment. Rescue medication was to be considered if the absolute hemoglobin level continued to decline, there was a \> 1 g/dL decrease in hemoglobin from the prior assessment, or the participant developed new or worsening symptoms of wAIHA. Percentage change from Baseline was calculated as (\[the post-Baseline value minus the Baseline value\]/Baseline value) x 100.
Percentage of Participants Who Required Rescue Therapy at Any Visit From Week 6 Through Week 24, and From Week 24 to Week 48Week 6 to Week 24; Week 24 to Week 48Rescue medication was to be considered if the absolute hemoglobin level continued to decline, there was a \> 1 g/dL decrease in hemoglobin from the prior assessment, or the participant developed new or worsening symptoms of wAIHA.
Number of Participants With Any Treatment-emergent Adverse Event (TEAE)up to 446 daysAn adverse event (AE) was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not it was considered drug-related. An AE could therefore be any unfavorable or unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of study drug. TEAEs were defined as AEs reported for the first time or the worsening of pre-existing events after the first dose of study drug.
Number of Participants With Any ≥Grade 3 TEAEup to 446 daysAn AE was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not it was considered drug-related. TEAEs were defined as AEs reported for the first time or the worsening of pre-existing events after the first dose of study drug. The severity of AEs were assessed using Common Terminology Criteria for Adverse Events (CTCAE) version 5.0 Grades 1 through 5. Grade 1: mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; treatment not indicated. Grade 2: moderate; minimal, local, or noninvasive treatment indicated; limiting age-appropriate activities of daily living. Grade 3: severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self-care activities of daily living. Grade 4: life-threatening consequences; urgent treatment indicated. Grade 5: fatal.
Percentage of Participants Who Received Transfusions From Week 6 to Week 24 and From Week 24 to Week 48Week 6 to Week 24; Week 24 to Week 48Transfusion was permitted as a rescue treatment. Rescue medication was to be considered if the absolute hemoglobin level continued to decline, there was a \> 1 g/dL decrease in hemoglobin from the prior assessment, or the participant developed new or worsening symptoms of warm autoimmune hemolytic anemia (wAIHA).

Countries

Austria, Belgium, Canada, France, Germany, Israel, Italy, Japan, Netherlands, Poland, Spain, United Kingdom, United States

Participant flow

Pre-assignment details

This study was designed to evaluate parsaclisib 2.5 mg QD compared with placebo over a 24-week double-blind treatment period followed by a 24-week open-label treatment period with parsaclisib. Participants could then continue to receive parsaclisib in a long-term extension period.

Participants by arm

ArmCount
Parsaclisib
Participants received parsaclisib 2.5 milligrams (mg) once daily (QD) for 24 weeks during the double-blind treatment period. Participants who completed the double-blind treatment period, tolerated study treatment, and, in the investigator's opinion, benefited from treatment had the option of continuing into an open-label treatment period for an additional 24 weeks of parsaclisib 2.5 mg QD, and then the long-term extension period to receive parsaclisib 2.5 mg QD for up to 2 years.
7
Placebo Followed by Parsaclisib
Participants received matching placebo QD for 24 weeks during the double-blind treatment period. Participants who completed the double-blind treatment period, tolerated study treatment, and, in the investigator's opinion, benefited from treatment had the option of continuing into an open-label treatment period for 24 weeks of parsaclisib 2.5 mg QD, and then the long-term extension period to receive parsaclisib 2.5 mg QD for up to 2 years. Participants may have received parsaclisib before reaching Week 24.
6
Total13

Withdrawals & dropouts

PeriodReasonFG000FG001
24-week Double-blind PeriodAdverse Event10
24-week Double-blind PeriodPhysician Decision10
24-week Double-blind PeriodStudy Terminated by Sponsor11
24-week Double-blind PeriodWithdrawal by Subject01
24-week Open-label PeriodAdverse Event12
24-week Open-label PeriodWithdrawal by Subject10

Baseline characteristics

CharacteristicPlacebo Followed by ParsaclisibTotalParsaclisib
Age, Continuous57.8 years
STANDARD_DEVIATION 15.54
60.23 years
STANDARD_DEVIATION 14.42
62.3 years
STANDARD_DEVIATION 14.28
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants1 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
4 Participants11 Participants7 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants0 Participants
Race/Ethnicity, Customized
Asian
1 Participants2 Participants1 Participants
Race/Ethnicity, Customized
Missing
1 Participants1 Participants0 Participants
Race/Ethnicity, Customized
White/Caucasian
4 Participants10 Participants6 Participants
Sex: Female, Male
Female
6 Participants10 Participants4 Participants
Sex: Female, Male
Male
0 Participants3 Participants3 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 60 / 11
other
Total, other adverse events
4 / 610 / 11
serious
Total, serious adverse events
0 / 66 / 11

Outcome results

Primary

Percentage of Participants Attaining a Durable Hemoglobin Response

A durable hemoglobin response was defined as hemoglobin ≥10 grams per deciliter (g/dL) with an increase from Baseline of ≥2 g/dL not attributed to rescue therapy at ≥3 of the 4 available visits at Week 12 and/or later during the 24-week double-blind treatment period.

Time frame: up to Week 24

Population: Safety Analysis Set: all randomized participants who received at least 1 dose of study drug. Treatment groups were determined according to the actual treatment the participant received on Day 1 regardless of assigned study treatment. Only participants with available data were analyzed.

ArmMeasureValue (NUMBER)
ParsaclisibPercentage of Participants Attaining a Durable Hemoglobin Response33.3 percentage of participants
PlaceboPercentage of Participants Attaining a Durable Hemoglobin Response25.0 percentage of participants
Secondary

Change From Baseline in Daily Corticosteroid Dose at Week 24

A new or increased dose of corticosteroids (prednisone or equivalent) from the Day 1 dose was permitted as rescue treatment. Rescue medication was to be considered if the absolute hemoglobin level continued to decline, there was a \> 1 g/dL decrease in hemoglobin from the prior assessment, or the participant developed new or worsening symptoms of wAIHA. Change from Baseline was calculated as the post-Baseline value minus the Baseline value.

Time frame: Baseline; Week 24

Population: Safety Analysis Set. Only participants with available data were analyzed.

ArmMeasureGroupValue (MEAN)Dispersion
ParsaclisibChange From Baseline in Daily Corticosteroid Dose at Week 24Baseline13.3 milligramsStandard Deviation 5.77
ParsaclisibChange From Baseline in Daily Corticosteroid Dose at Week 24Change from Baseline at Week 248.1 milligramsStandard Deviation 14.02
PlaceboChange From Baseline in Daily Corticosteroid Dose at Week 24Baseline20.8 milligramsStandard Deviation 10.21
PlaceboChange From Baseline in Daily Corticosteroid Dose at Week 24Change from Baseline at Week 24-4.8 milligramsStandard Deviation 10.41
Secondary

Change From Baseline in Hemoglobin at Each Post-Baseline Visit

Change from Baseline was calculated as the post-Baseline value minus the Baseline value. End of Treatment, Double-blind Period: assessment performed for participants who discontinued treatment before Week 24. End of Treatment, Open-label Period: assessment performed for participants who discontinued treatment after Week 24 and before Week 56. Follow-up Visits 1, 2, and 3 occurred 4, 8, and 12 weeks, respectively, after the end of treatment visit.

Time frame: Baseline; Day 1; Weeks 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, and every 8 weeks post-Week 56

Population: Safety Analysis Set. Only participants with available data were analyzed.

ArmMeasureGroupValue (MEAN)Dispersion
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 1213.8 grams per literStandard Deviation 19.69
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 62.7 grams per literStandard Deviation 6.38
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 1619.5 grams per literStandard Deviation 15.76
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 2015.3 grams per literStandard Deviation 6.08
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 812.7 grams per literStandard Deviation 14.07
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 2419.5 grams per literStandard Deviation 14.8
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 4-4.4 grams per literStandard Deviation 14.29
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at End of Treatment, Double-blind Period-62.4 grams per liter
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 1016.5 grams per literStandard Deviation 17.41
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitBaseline86.5 grams per literStandard Deviation 15.31
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 2-9.3 grams per literStandard Deviation 29.09
PlaceboChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 2614.0 grams per literStandard Deviation 9.6
PlaceboChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at End of Treatment, Open-label Period127.7 grams per liter
PlaceboChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Follow-up Visit 323.0 grams per liter
PlaceboChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 5617.5 grams per literStandard Deviation 12.02
PlaceboChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 2818.9 grams per literStandard Deviation 19.58
PlaceboChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 648.0 grams per liter
PlaceboChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at End of Treatment, Long-term Extension Period86.0 grams per liter
PlaceboChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 3219.0 grams per literStandard Deviation 31.32
PlaceboChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Follow-up Visit 140.0 grams per liter
PlaceboChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 3622.8 grams per literStandard Deviation 18.01
PlaceboChange From Baseline in Hemoglobin at Each Post-Baseline VisitBaseline85.3 grams per literStandard Deviation 12.97
PlaceboChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 4021.5 grams per literStandard Deviation 12.02
PlaceboChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 308.1 grams per literStandard Deviation 32.67
PlaceboChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 4425.0 grams per literStandard Deviation 21.21
PlaceboChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Follow-up Visit 232.0 grams per liter
PlaceboChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 4822.5 grams per literStandard Deviation 21.92
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Follow-up Visit 320.3 grams per literStandard Deviation 9.95
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitBaseline98.4 grams per literStandard Deviation 21.53
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 28.7 grams per literStandard Deviation 11.76
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 414.2 grams per literStandard Deviation 13.14
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 614.3 grams per literStandard Deviation 16.83
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 815.0 grams per literStandard Deviation 18.95
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 1016.5 grams per literStandard Deviation 16.32
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 1220.5 grams per literStandard Deviation 11.01
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 1622.4 grams per literStandard Deviation 16.41
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 207.7 grams per literStandard Deviation 1.53
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 2419.3 grams per literStandard Deviation 22.28
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at End of Treatment, Double-blind Period11.0 grams per liter
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 263.0 grams per literStandard Deviation 24.33
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 288.3 grams per literStandard Deviation 26.48
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 3027.0 grams per liter
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 3226.0 grams per literStandard Deviation 11.31
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 3618.5 grams per literStandard Deviation 13.44
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 4026.5 grams per literStandard Deviation 7.78
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 4427.5 grams per literStandard Deviation 14.85
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 4832.0 grams per liter
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at End of Treatment, Open-label Period124.0 grams per liter
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Week 5636.0 grams per liter
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Follow-up Visit 111.0 grams per literStandard Deviation 7.62
ParsaclisibChange From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at Follow-up Visit 212.5 grams per literStandard Deviation 17.52
Secondary

Change From Baseline in the FACIT-F Score at Each Post-Baseline Visit

The FACIT-F scale was developed to assess anemia-related fatigue. The FACIT-F is a 13-item measure that assesses self-reported fatigue and its impact upon daily activities and function over the past 7 days. A clinically meaningful change in the FACIT-F score was defined as ≥3-point increase from Baseline. Item scores range from 0 (not at all) to 4 (very much), and the total score ranges from 0 to 52; lower scores indicate greater fatigue. Change from Baseline was calculated as the post-Baseline value minus the Baseline value. End of Treatment, Double-blind Period: assessment performed for participants who discontinued treatment before Week 24. End of Treatment, Open-label Period: assessment performed for participants who discontinued treatment after Week 24 and before Week 56. Follow-up Visit 3 occurred 12 weeks after the end of treatment visit.

Time frame: Baseline; Day 1; Weeks 8, 12, 16, 20, 24, 28, 32, 40, 48, 56, and every 16 weeks post-Week 56

Population: Safety Analysis Set. Only participants with available data were analyzed.

ArmMeasureGroupValue (MEAN)Dispersion
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitBaseline28.5 scores on a scaleStandard Deviation 5.96
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 88.2 scores on a scaleStandard Deviation 5.63
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 127.6 scores on a scaleStandard Deviation 6.58
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 163.8 scores on a scaleStandard Deviation 5.91
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 202.0 scores on a scaleStandard Deviation 9.09
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 243.3 scores on a scaleStandard Deviation 2.63
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at End of Treatment, Double-blind Period20.0 scores on a scale
PlaceboChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 561.0 scores on a scale
PlaceboChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at End of Treatment, Long-term Extension Period1.0 scores on a scale
PlaceboChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Follow-up Visit 30.0 scores on a scale
PlaceboChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 286.5 scores on a scaleStandard Deviation 6.86
PlaceboChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 32-9.0 scores on a scaleStandard Deviation 13.89
PlaceboChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 401.0 scores on a scale
PlaceboChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 485.0 scores on a scale
PlaceboChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitBaseline31.3 scores on a scaleStandard Deviation 5.12
PlaceboChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at End of Treatment, Open-label Period-2.0 scores on a scale
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 286.0 scores on a scale
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitBaseline31.1 scores on a scaleStandard Deviation 7.78
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 32-1.0 scores on a scale
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 166.2 scores on a scaleStandard Deviation 7.36
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 123.6 scores on a scaleStandard Deviation 8.56
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 204.5 scores on a scaleStandard Deviation 7.78
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 82.4 scores on a scaleStandard Deviation 7.16
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Week 245.0 scores on a scaleStandard Deviation 5.2
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at Follow-up Visit 3-1.0 scores on a scaleStandard Deviation 2.83
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at End of Treatment, Double-blind Period-8.0 scores on a scaleStandard Deviation 9.9
ParsaclisibChange From Baseline in the FACIT-F Score at Each Post-Baseline VisitChange from Baseline at End of Treatment, Open-label Period8.0 scores on a scale
Secondary

Number of Participants With Any ≥Grade 3 TEAE

An AE was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not it was considered drug-related. TEAEs were defined as AEs reported for the first time or the worsening of pre-existing events after the first dose of study drug. The severity of AEs were assessed using Common Terminology Criteria for Adverse Events (CTCAE) version 5.0 Grades 1 through 5. Grade 1: mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; treatment not indicated. Grade 2: moderate; minimal, local, or noninvasive treatment indicated; limiting age-appropriate activities of daily living. Grade 3: severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self-care activities of daily living. Grade 4: life-threatening consequences; urgent treatment indicated. Grade 5: fatal.

Time frame: up to 446 days

Population: Safety Analysis Set

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ParsaclisibNumber of Participants With Any ≥Grade 3 TEAE1 Participants
PlaceboNumber of Participants With Any ≥Grade 3 TEAE3 Participants
ParsaclisibNumber of Participants With Any ≥Grade 3 TEAE6 Participants
Secondary

Number of Participants With Any Treatment-emergent Adverse Event (TEAE)

An adverse event (AE) was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not it was considered drug-related. An AE could therefore be any unfavorable or unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of study drug. TEAEs were defined as AEs reported for the first time or the worsening of pre-existing events after the first dose of study drug.

Time frame: up to 446 days

Population: Safety Analysis Set

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
ParsaclisibNumber of Participants With Any Treatment-emergent Adverse Event (TEAE)4 Participants
PlaceboNumber of Participants With Any Treatment-emergent Adverse Event (TEAE)4 Participants
ParsaclisibNumber of Participants With Any Treatment-emergent Adverse Event (TEAE)7 Participants
Secondary

Percentage Change From Baseline in Daily Corticosteroid Dose at Week 24

A new or increased dose of corticosteroids (prednisone or equivalent) from the Day 1 dose was permitted as rescue treatment. Rescue medication was to be considered if the absolute hemoglobin level continued to decline, there was a \> 1 g/dL decrease in hemoglobin from the prior assessment, or the participant developed new or worsening symptoms of wAIHA. Percentage change from Baseline was calculated as (\[the post-Baseline value minus the Baseline value\]/Baseline value) x 100.

Time frame: Baseline; Week 24

Population: Safety Analysis Set. Only participants with available data were analyzed.

ArmMeasureValue (MEAN)Dispersion
ParsaclisibPercentage Change From Baseline in Daily Corticosteroid Dose at Week 2481.0 percentage changeStandard Deviation 140.21
PlaceboPercentage Change From Baseline in Daily Corticosteroid Dose at Week 24-22.0 percentage changeStandard Deviation 60.07
Secondary

Percentage Change From Baseline in Hemoglobin at Each Post-Baseline Visit

Percentage change from Baseline was calculated as (\[the post-Baseline value minus the Baseline value\]/Baseline value) x 100. End of Treatment, Double-blind Period: assessment performed for participants who discontinued treatment before Week 24. End of Treatment, Open-label Period: assessment performed for participants who discontinued treatment after Week 24 and before Week 56. Follow-up Visits 1, 2, and 3 occurred 4, 8, and 12 weeks, respectively, after the end of treatment visit.

Time frame: Baseline; Day 1; Weeks 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, and every 8 weeks post-Week 56

Population: Safety Analysis Set. Only participants with available data were analyzed.

ArmMeasureGroupValue (MEAN)Dispersion
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 4-3.5 percentage changeStandard Deviation 16.87
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 1621.7 percentage changeStandard Deviation 16.02
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 814.0 percentage changeStandard Deviation 14.59
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 2018.5 percentage changeStandard Deviation 9.32
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 2-12.3 percentage changeStandard Deviation 41.18
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 2422.7 percentage changeStandard Deviation 15.52
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 1017.8 percentage changeStandard Deviation 17.44
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at End of Treatment, Double-blind Period-87.9 percentage change
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 63.4 percentage changeStandard Deviation 7.42
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 1213.6 percentage changeStandard Deviation 21.15
PlaceboPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitFollow-up Visit 323.7 percentage change
PlaceboPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at End of Treatment, Open-label Period31.7 percentage change
PlaceboPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 4029.7 percentage changeStandard Deviation 18.67
PlaceboPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 5624.3 percentage changeStandard Deviation 18.21
PlaceboPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 2823.4 percentage changeStandard Deviation 25.16
PlaceboPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 6410.1 percentage change
PlaceboPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at End of Treatment, Long-term Extension Period8.9 percentage change
PlaceboPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 3223.6 percentage changeStandard Deviation 40.57
PlaceboPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitFollow-up Visit 141.2 percentage change
PlaceboPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 3629.3 percentage changeStandard Deviation 26.69
PlaceboPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 2615.2 percentage changeStandard Deviation 9.34
PlaceboPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitFollow-up Visit 233.0 percentage change
PlaceboPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 4434.9 percentage changeStandard Deviation 31.46
PlaceboPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 306.6 percentage changeStandard Deviation 36.17
PlaceboPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 4831.6 percentage changeStandard Deviation 32.12
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitFollow-up Visit 323.4 percentage changeStandard Deviation 13.52
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 28.2 percentage changeStandard Deviation 13.82
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 414.2 percentage changeStandard Deviation 13.68
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 614.2 percentage changeStandard Deviation 18.21
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 814.3 percentage changeStandard Deviation 19.65
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 1016.5 percentage changeStandard Deviation 17.59
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 1220.7 percentage changeStandard Deviation 12.36
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 1623.2 percentage changeStandard Deviation 17.81
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 207.6 percentage changeStandard Deviation 2.11
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 2419.4 percentage changeStandard Deviation 22.7
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at End of Treatment, Double-blind Period12.0 percentage change
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 263.4 percentage changeStandard Deviation 24.52
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 289.7 percentage changeStandard Deviation 27.56
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 3030.0 percentage change
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 3229.0 percentage changeStandard Deviation 12.41
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 3620.6 percentage changeStandard Deviation 14.85
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 4029.6 percentage changeStandard Deviation 8.46
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 4430.7 percentage changeStandard Deviation 16.35
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 4835.6 percentage change
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitChange from Baseline at End of Treatment, Open-label Period25.3 percentage change
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitWeek 5640.0 percentage change
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitFollow-up Visit 111.5 percentage changeStandard Deviation 8.19
ParsaclisibPercentage Change From Baseline in Hemoglobin at Each Post-Baseline VisitFollow-up Visit 214.5 percentage changeStandard Deviation 19.47
Secondary

Percentage Change From Baseline in the FACIT-F Score at Each Post-Baseline Visit

The FACIT-F scale was developed to assess anemia-related fatigue. The FACIT-F is a 13-item measure that assesses self-reported fatigue and its impact upon daily activities and function over the past 7 days. A clinically meaningful change in the FACIT-F score was defined as ≥3-point increase from Baseline. Item scores range from 0 (not at all) to 4 (very much), and the total score ranges from 0 to 52; lower scores indicate greater fatigue. Percentage change from Baseline was calculated as (\[the post-Baseline value minus the Baseline value\]/Baseline value) x 100. End of Treatment, Double-blind Period: assessment performed for participants who discontinued treatment before Week 24. End of Treatment, Open-label Period: assessment performed for participants who discontinued treatment after Week 24 and before Week 56. Follow-up Visit 3 occurred 12 weeks after the end of treatment visit.

Time frame: Baseline; Day 1; Weeks 8, 12, 16, 20, 24, 28, 32, 40, 48, 56, and every 16 weeks post-Week 56

Population: Safety Analysis Set. Only participants with available data were analyzed,

ArmMeasureGroupValue (MEAN)Dispersion
ParsaclisibPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 209.1 percentage changeStandard Deviation 31.07
ParsaclisibPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 829.6 percentage changeStandard Deviation 21.4
ParsaclisibPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 1228.1 percentage changeStandard Deviation 26.1
ParsaclisibPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitEnd of Treatment, Double-blind Period95.2 percentage change
ParsaclisibPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 1612.4 percentage changeStandard Deviation 20.21
ParsaclisibPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 2410.1 percentage changeStandard Deviation 6.71
PlaceboPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 2822.6 percentage changeStandard Deviation 26.8
PlaceboPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 32-26.9 percentage changeStandard Deviation 40.55
PlaceboPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 402.9 percentage change
PlaceboPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 4814.7 percentage change
PlaceboPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitEnd of Treatment, Open-label Period-5.4 percentage change
PlaceboPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 562.9 percentage change
PlaceboPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitEnd of Treatment, Long-term Extension Period2.9 percentage change
PlaceboPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitFollow-up Visit 30.0 percentage change
ParsaclisibPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitEnd of Treatment, Open-label Period25.0 percentage change
ParsaclisibPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 32-4.8 percentage change
ParsaclisibPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitFollow-up Visit 3-5.1 percentage changeStandard Deviation 10.41
ParsaclisibPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 2012.8 percentage changeStandard Deviation 24.79
ParsaclisibPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 1621.9 percentage changeStandard Deviation 27.65
ParsaclisibPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 2414.8 percentage changeStandard Deviation 16.97
ParsaclisibPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 1215.30252 percentage changeStandard Deviation 32.05
ParsaclisibPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitEnd of Treatment, Double-blind Period-32.4 percentage changeStandard Deviation 42.62
ParsaclisibPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 88.2 percentage changeStandard Deviation 21.25
ParsaclisibPercentage Change From Baseline in the FACIT-F Score at Each Post-Baseline VisitWeek 2818.8 percentage change
Secondary

Percentage of Participants Who Received Transfusions From Week 6 to Week 24 and From Week 24 to Week 48

Transfusion was permitted as a rescue treatment. Rescue medication was to be considered if the absolute hemoglobin level continued to decline, there was a \> 1 g/dL decrease in hemoglobin from the prior assessment, or the participant developed new or worsening symptoms of warm autoimmune hemolytic anemia (wAIHA).

Time frame: Week 6 to Week 24; Week 24 to Week 48

Population: Safety Analysis Set. Only participants with available data were analyzed. The number of participants analyzed at Weeks 6 to 24 reflects the number of participants who received study drug for at least 43 days. The number of participants analyzed at Weeks 24 to 48 reflects the number of participants who received study drug during the open-label period.

ArmMeasureGroupValue (NUMBER)
ParsaclisibPercentage of Participants Who Received Transfusions From Week 6 to Week 24 and From Week 24 to Week 48Week 6 to Week 240.0 percentage of participants
PlaceboPercentage of Participants Who Received Transfusions From Week 6 to Week 24 and From Week 24 to Week 48Week 24 to Week 4825.0 percentage of participants
ParsaclisibPercentage of Participants Who Received Transfusions From Week 6 to Week 24 and From Week 24 to Week 48Week 6 to Week 2442.9 percentage of participants
ParsaclisibPercentage of Participants Who Received Transfusions From Week 6 to Week 24 and From Week 24 to Week 48Week 24 to Week 4825.0 percentage of participants
Secondary

Percentage of Participants Who Required Rescue Therapy at Any Visit From Week 6 Through Week 24, and From Week 24 to Week 48

Rescue medication was to be considered if the absolute hemoglobin level continued to decline, there was a \> 1 g/dL decrease in hemoglobin from the prior assessment, or the participant developed new or worsening symptoms of wAIHA.

Time frame: Week 6 to Week 24; Week 24 to Week 48

Population: Safety Analysis Set. Only participants with available data were analyzed.

ArmMeasureGroupValue (NUMBER)
ParsaclisibPercentage of Participants Who Required Rescue Therapy at Any Visit From Week 6 Through Week 24, and From Week 24 to Week 48Week 6 to Week 240.0 percentage of participants
PlaceboPercentage of Participants Who Required Rescue Therapy at Any Visit From Week 6 Through Week 24, and From Week 24 to Week 48Week 24 to Week 480.0 percentage of participants
ParsaclisibPercentage of Participants Who Required Rescue Therapy at Any Visit From Week 6 Through Week 24, and From Week 24 to Week 48Week 6 to Week 240.0 percentage of participants
ParsaclisibPercentage of Participants Who Required Rescue Therapy at Any Visit From Week 6 Through Week 24, and From Week 24 to Week 48Week 24 to Week 4820.0 percentage of participants
Secondary

Percentage of Participants With a ≥3-point Increase From Baseline in Functional Assessment of Chronic Illness Therapy - Fatigue (FACIT-F) Score at Week 24

The FACIT-F scale was developed to assess anemia-related fatigue. The FACIT-F is a 13-item measure that assesses self-reported fatigue and its impact upon daily activities and function over the past 7 days. A clinically meaningful change in the FACIT-F score was defined as ≥3-point increase from Baseline. Item scores range from 0 (not at all) to 4 (very much), and the total score ranges from 0 to 52; lower scores indicate greater fatigue. Change from Baseline was calculated as the post-Baseline value minus the Baseline value.

Time frame: Baseline; Week 24

Population: Safety Analysis Set. Only participants with available data were analyzed.

ArmMeasureValue (NUMBER)
ParsaclisibPercentage of Participants With a ≥3-point Increase From Baseline in Functional Assessment of Chronic Illness Therapy - Fatigue (FACIT-F) Score at Week 2466.7 percentage of participants
PlaceboPercentage of Participants With a ≥3-point Increase From Baseline in Functional Assessment of Chronic Illness Therapy - Fatigue (FACIT-F) Score at Week 2450.0 percentage of participants
Secondary

Percentage of Participants With a 50 Meter Increase From Baseline to Week 24 in a 6-minute Walk Test (6MWT)

The 6MWT is used to evaluate submaximal exercise capacity. It is a self-paced measurement of the distance that a participant can quickly walk on a flat, hard surface in a period of 6 minutes.

Time frame: Baseline; Week 24

Population: Safety Analysis Set. Only participants with available data were analyzed,

ArmMeasureValue (NUMBER)
ParsaclisibPercentage of Participants With a 50 Meter Increase From Baseline to Week 24 in a 6-minute Walk Test (6MWT)0.0 percentage of participants
PlaceboPercentage of Participants With a 50 Meter Increase From Baseline to Week 24 in a 6-minute Walk Test (6MWT)100.0 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 12, 2026