A Phase 2 interventional study of Parsaclisib in Lymphoma, sponsored by Incyte Corporation. Completed at 83 sites in 13 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-03-14.
Sponsored by Incyte Corporation · Phase 2, Interventional, and Treatment
The purpose of this study is to assess the objective response rate of parsaclisib treatment in participants with relapsed or refractory follicular lymphoma.
5,578 studies on the registry are indexed under Lymphoma; 825 are open to participants now.
This study's enrollment of 126 is above the median of 40 across 4,508 interventional studies indexed under Lymphoma.
Browse Lymphoma studies →Incyte Corporation is the lead sponsor of 286 studies on the registry; 37 are open to participants now.
Of its 144 completed or terminated interventional studies of FDA-regulated products, 93 (65%) have results posted.
Counted across the registry records on this site, refreshed daily.
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Participants received parsaclisib 20 mg once daily (QD) for 8 weeks followed by 20 mg once weekly (QW) for up to approximately 52 weeks.
Drug: Parsaclisib
Participants received parsaclisib 20 mg QD for 8 weeks followed by 2.5 mg QD for up to approximately 52 weeks.
Drug: Parsaclisib
Parsaclisib tablets administered orally with water and without regard to food
Also known as: INCB050465
Objective Response Rate With Parsaclisib Based on Lugano Classification Response Criteria
ORR=percentage of participants with complete response(CR) or partial response(PR) per revised response criteria for lymphomas,determined by independent review committee(IRC).Criteria for CR:1.Target nodes/nodal masses of lymph nodes,extralymphatic sites regressed to≤1.5cm in longest dimension transverse diameter of lesion(LDi);2.Absence of non-measured lesion;3.Organ enlargement regressed to normal;4.No new lesions;5.Normal bone marrow morphology;if indeterminate,immunohistochemistry negative.Criteria for PR:1.Lymph nodes,extralymphatic sites- ≥50%decrease in sum of product of perpendicular diameters for multiple lesions(SPD)of up to 6 target measurable nodes,extranodal sites;if lesion is too small to measure on computed tomography(CT),assign5mm×5mm as default;if no longer visible,0×0mm.Node\>5mm×5mm but smaller than normal,use actual measurement.2.Absent/regressed non-measured lesions,no increase.3.Organ enlargement-Spleen regressed by\>50%in length beyond normal.4.No new lesions.
Time frame: Up to approximately 148 weeks
Complete Response Rate With Parsaclisib Based on Lugano Classification Response Criteria
CRR was defined as the percentage of participants with a CR as defined by revised response criteria for lymphomas as determined by an IRC. The criteria for CR included: 1. Target nodes/nodal masses of lymph nodes and extralymphatic sites must regress to ≤ 1.5 cm in LDi; 2. Absence of non-measured lesion; 3. Organ enlargement regressed to normal; 4. No new lesions; 5. Bone marrow must be normal by morphology; if indeterminate, immunohistochemistry negative.
Time frame: Up to 1193 days
Duration of Response (DOR)
DOR=time from first documented evidence of CR or PR until disease progression or death from any cause among participants who achieve an objective response as determined by IRC. Criteria for CR: 1.Target nodes/nodal masses of lymph nodes and extralymphatic sites must regress to ≤ 1.5 cm in LDi; 2. Absence of non-measured lesion; 3.Organ enlargement regressed to normal; 4.No new lesions; 5.Bone marrow must be normal by morphology; if indeterminate, immunohistochemistry negative. The criteria for PR included: 1.Lymph nodes and extralymphatic sites- a. ≥50% decrease in SPD of up to 6 target measurable nodes and extranodal sites; b. when a lesion is too small to measure on CT, assign 5 mm×5 mm as the default; c.when no longer visible, 0×0 mm. For a node \>5 mm×5 mm but smaller than normal, use actual measurement. 2.Non-measured lesions- Absent/regressed, but no increase. 3. Organ enlargement-Spleen must have regressed by \>50% in length beyond normal. 4.No new lesions.
Time frame: Up to 1193 days
Progression-free Survival (PFS) With Parsaclisib
PFS was defined as the time from the date of the first dose of study treatment until the earliest date of disease progression, as determined by radiographic disease assessment provided by an IRC, or death from any cause.
Time frame: Up to 1193 days
Overall Survival (OS) With Parsaclisib
OS was defined as the time from the date of the first dose of study treatment until death from any cause.
Time frame: Up to 1193 days
Best Percent Change From Baseline in Target Lesion Size
Target lesion size is measured by the sum of the product of diameters of all target lesion sizes and is determined by the IRC. The best percent change from Baseline is defined as the largest decrease, or smallest increase (if no decrease available), from Baseline in target lesion sizes on/before new (next-line) anti-lymphoma therapy during the study. Baseline is the last non-missing measurement obtained before the first administration of study drug. A negative percent change from Baseline indicates improvement.
Time frame: Up to 1193 days
Percentage of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)
An adverse event (AE) is defined as any untoward medical occurrence associated with use of a drug in humans, whether or not considered drug related, that occurs after a participant provides informed consent. TEAE is any AE either reported for first time or worsening of a pre-existing event after first dose of study drug and within 30 days of last administration of study drug regardless of starting new anti-lymphoma therapy. SAE is any untoward medical occurrence that results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, leads to a congenital anomaly/birth defect or is considered to be an important medical event that may not result in death, be immediately life-threatening, or require hospitalization but may be considered serious when, based on appropriate medical judgment, the event may jeopardize the participant or may require medical or surgical intervention.
Time frame: up to approximately 1992 days
Participants took part in the study at 44 investigative sites in the United States, Italy, Spain, Great Britain, Czech Republic, Hungary, Canada, Denmark, Germany, Israel, Poland, and Sweden
| Milestone | Treatment A: Parsaclisib 20 mg QD for 8 Weeks Followed by 20 mg QW | Treatment B: Parsaclisib 20 mg QD for 8 Weeks Followed by 2.5 mg QD |
|---|---|---|
| Started | 23 | 103 |
| Completed | 14 | 50 |
| Not completed | 9 | 53 |
| Withdrew: Death | 5 | 27 |
| Withdrew: Lost to follow-up | 2 | 4 |
| Withdrew: Withdrawal by subject | 1 | 9 |
| Withdrew: Physician decision | 1 | 0 |
| Withdrew: Transitioned to rollover study | 0 | 11 |
| Withdrew: Did not return to site for care | 0 | 1 |
| Withdrew: Site closed | 0 | 1 |
ORR=percentage of participants with complete response(CR) or partial response(PR) per revised response criteria for lymphomas,determined by independent review committee(IRC).Criteria for CR:1.Target nodes/nodal masses of lymph nodes,extralymphatic sites regressed to≤1.5cm in longest dimension transverse diameter of lesion(LDi);2.Absence of non-measured lesion;3.Organ enlargement regressed to normal;4.No new lesions;5.Normal bone marrow morphology;if indeterminate,immunohistochemistry negative.Criteria for PR:1.Lymph nodes,extralymphatic sites- ≥50%decrease in sum of product of perpendicular diameters for multiple lesions(SPD)of up to 6 target measurable nodes,extranodal sites;if lesion is too small to measure on computed tomography(CT),assign5mm×5mm as default;if no longer visible,0×0mm.Node\>5mm×5mm but smaller than normal,use actual measurement.2.Absent/regressed non-measured lesions,no increase.3.Organ enlargement-Spleen regressed by\>50%in length beyond normal.4.No new lesions.
| percentage of participants | Treatment A: Parsaclisib 20 mg QD for 8 Weeks Followed by 20 mg QW | Treatment B: Parsaclisib 20 mg QD for 8 Weeks Followed by 2.5 mg QD |
|---|---|---|
| Objective Response Rate With Parsaclisib Based on Lugano Classification Response Criteria | 65.2 (42.7 to 83.6) | 77.7 (68.4 to 85.3) |
CRR was defined as the percentage of participants with a CR as defined by revised response criteria for lymphomas as determined by an IRC. The criteria for CR included: 1. Target nodes/nodal masses of lymph nodes and extralymphatic sites must regress to ≤ 1.5 cm in LDi; 2. Absence of non-measured lesion; 3. Organ enlargement regressed to normal; 4. No new lesions; 5. Bone marrow must be normal by morphology; if indeterminate, immunohistochemistry negative.
| percentage of participants | Treatment A: Parsaclisib 20 mg QD for 8 Weeks Followed by 20 mg QW | Treatment B: Parsaclisib 20 mg QD for 8 Weeks Followed by 2.5 mg QD |
|---|---|---|
| Complete Response Rate With Parsaclisib Based on Lugano Classification Response Criteria | 17.4 (5.0 to 38.8) | 22.3 (14.7 to 31.6) |
DOR=time from first documented evidence of CR or PR until disease progression or death from any cause among participants who achieve an objective response as determined by IRC. Criteria for CR: 1.Target nodes/nodal masses of lymph nodes and extralymphatic sites must regress to ≤ 1.5 cm in LDi; 2. Absence of non-measured lesion; 3.Organ enlargement regressed to normal; 4.No new lesions; 5.Bone marrow must be normal by morphology; if indeterminate, immunohistochemistry negative. The criteria for PR included: 1.Lymph nodes and extralymphatic sites- a. ≥50% decrease in SPD of up to 6 target measurable nodes and extranodal sites; b. when a lesion is too small to measure on CT, assign 5 mm×5 mm as the default; c.when no longer visible, 0×0 mm. For a node \>5 mm×5 mm but smaller than normal, use actual measurement. 2.Non-measured lesions- Absent/regressed, but no increase. 3. Organ enlargement-Spleen must have regressed by \>50% in length beyond normal. 4.No new lesions.
| months | Treatment A: Parsaclisib 20 mg QD for 8 Weeks Followed by 20 mg QW | Treatment B: Parsaclisib 20 mg QD for 8 Weeks Followed by 2.5 mg QD |
|---|---|---|
| Duration of Response (DOR) | 14.06 (3.19 to NA) | 14.72 (11.76 to 25.72) |
PFS was defined as the time from the date of the first dose of study treatment until the earliest date of disease progression, as determined by radiographic disease assessment provided by an IRC, or death from any cause.
| months | Treatment A: Parsaclisib 20 mg QD for 8 Weeks Followed by 20 mg QW | Treatment B: Parsaclisib 20 mg QD for 8 Weeks Followed by 2.5 mg QD |
|---|---|---|
| Progression-free Survival (PFS) With Parsaclisib | 19.32 (8.31 to 33.15) | 14.03 (11.07 to 20.07) |
OS was defined as the time from the date of the first dose of study treatment until death from any cause.
| months | Treatment A: Parsaclisib 20 mg QD for 8 Weeks Followed by 20 mg QW | Treatment B: Parsaclisib 20 mg QD for 8 Weeks Followed by 2.5 mg QD |
|---|---|---|
| Overall Survival (OS) With Parsaclisib | NA (35.48 to NA) | NA (NA to NA) |
Target lesion size is measured by the sum of the product of diameters of all target lesion sizes and is determined by the IRC. The best percent change from Baseline is defined as the largest decrease, or smallest increase (if no decrease available), from Baseline in target lesion sizes on/before new (next-line) anti-lymphoma therapy during the study. Baseline is the last non-missing measurement obtained before the first administration of study drug. A negative percent change from Baseline indicates improvement.
| percent change in lesion size | Treatment A: Parsaclisib 20 mg QD for 8 Weeks Followed by 20 mg QW | Treatment B: Parsaclisib 20 mg QD for 8 Weeks Followed by 2.5 mg QD |
|---|---|---|
| Best Percent Change From Baseline in Target Lesion Size | -72.90 ± 21.782 | -72.77 ± 31.972 |
An adverse event (AE) is defined as any untoward medical occurrence associated with use of a drug in humans, whether or not considered drug related, that occurs after a participant provides informed consent. TEAE is any AE either reported for first time or worsening of a pre-existing event after first dose of study drug and within 30 days of last administration of study drug regardless of starting new anti-lymphoma therapy. SAE is any untoward medical occurrence that results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, leads to a congenital anomaly/birth defect or is considered to be an important medical event that may not result in death, be immediately life-threatening, or require hospitalization but may be considered serious when, based on appropriate medical judgment, the event may jeopardize the participant or may require medical or surgical intervention.
| percentage of participants | Treatment A: Parsaclisib 20 mg QD for 8 Weeks Followed by 20 mg QW | Treatment B: Parsaclisib 20 mg QD for 8 Weeks Followed by 2.5 mg QD |
|---|---|---|
| TEAEs | 100.0 | 99.0 |
| SAEs | 52.2 | 53.4 |
Collected over up to approximately 1992 days. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Treatment A: Parsaclisib 20 mg QD for 8 Weeks Followed by 20 mg QW | 5/23 (21.7%) | 12/23 (52.2%) | 22/23 (95.7%) |
| Treatment B: Parsaclisib 20 mg QD for 8 Weeks Followed by 2.5 mg QD | 27/103 (26.2%) | 55/103 (53.4%) | 94/103 (91.3%) |
| Event | Treatment A: Parsaclisib 20 mg QD for 8 Weeks Followed by 20 mg QW | Treatment B: Parsaclisib 20 mg QD for 8 Weeks Followed by 2.5 mg QD |
|---|---|---|
| DiarrhoeaGastrointestinal disorders | 0/23 | 10/103 |
| DehydrationMetabolism and nutrition disorders | 2/23 | 1/103 |
| ColitisGastrointestinal disorders | 0/23 | 8/103 |
| Acute kidney injuryRenal and urinary disorders | 1/23 | 3/103 |
| AnaemiaBlood and lymphatic system disorders | 1/23 | 0/103 |
| Autoimmune arthritisMusculoskeletal and connective tissue disorders | 1/23 | 0/103 |
| Cytomegalovirus colitisInfections and infestations | 1/23 | 1/103 |
| Deep vein thrombosisVascular disorders | 1/23 | 1/103 |
| Diverticular perforationGastrointestinal disorders | 1/23 | 0/103 |
| EncephalopathyNervous system disorders | 1/23 | 0/103 |
| Event | Treatment A: Parsaclisib 20 mg QD for 8 Weeks Followed by 20 mg QW | Treatment B: Parsaclisib 20 mg QD for 8 Weeks Followed by 2.5 mg QD |
|---|---|---|
| DiarrhoeaGastrointestinal disorders | 3/23 | 45/103 |
| NauseaGastrointestinal disorders | 8/23 | 28/103 |
| CoughRespiratory, thoracic and mediastinal disorders | 3/23 | 28/103 |
| RashSkin and subcutaneous tissue disorders | 6/23 | 15/103 |
| FatigueGeneral disorders | 3/23 | 21/103 |
| PyrexiaGeneral disorders | 2/23 | 20/103 |
| PruritusSkin and subcutaneous tissue disorders | 4/23 | 3/103 |
| ArthralgiaMusculoskeletal and connective tissue disorders | 2/23 | 16/103 |
| NeutropeniaBlood and lymphatic system disorders | 2/23 | 16/103 |
| AstheniaGeneral disorders | 2/23 | 14/103 |
The Full Analysis Set (FAS) included all participants enrolled in the study who received at least 1 dose of parsaclisib.
| Age, Continuous(years) | Treatment A: Parsaclisib 20 mg QD for 8 Weeks Followed by 20 mg QW | Treatment B: Parsaclisib 20 mg QD for 8 Weeks Followed by 2.5 mg QD | Total |
|---|---|---|---|
| Mean | 64.1 ± 11.56 | 67.0 ± 10.68 | 66.5 ± 10.86 |
| Sex: Female, Male(Participants) | Treatment A: Parsaclisib 20 mg QD for 8 Weeks Followed by 20 mg QW | Treatment B: Parsaclisib 20 mg QD for 8 Weeks Followed by 2.5 mg QD | Total |
|---|---|---|---|
| Female | 11 | 45 | 56 |
| Male | 12 | 58 | 70 |
| Ethnicity (NIH/OMB)(Participants) | Treatment A: Parsaclisib 20 mg QD for 8 Weeks Followed by 20 mg QW | Treatment B: Parsaclisib 20 mg QD for 8 Weeks Followed by 2.5 mg QD | Total |
|---|---|---|---|
| Hispanic or Latino | 1 | 6 | 7 |
| Not Hispanic or Latino | 19 | 90 | 109 |
| Unknown or Not Reported | 3 | 7 | 10 |
| Race Customized(Participants) | Treatment A: Parsaclisib 20 mg QD for 8 Weeks Followed by 20 mg QW | Treatment B: Parsaclisib 20 mg QD for 8 Weeks Followed by 2.5 mg QD | Total |
|---|---|---|---|
| Asian | 0 | 1 | 1 |
| Black/ African- American | 1 | 6 | 7 |
| White/ Caucasian | 21 | 92 | 113 |
| Unavailable or Unknown | 1 | 4 | 5 |
Documents are hosted by the registry — open the source record to download them.
Plan to share: Yes — Incyte shares data with qualified external researchers after a research proposal is submitted. These requests are reviewed and approved by a review panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations. The trial data availability is according to the criteria and process described on https://www.incyte.com/our-company/compliance-and-transparency
Supporting information: Study protocol, Sap
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