To Assess the Safety and Tolerability of Tafasitamab Alone or in Combination With Other Drugs in Japanese Participants With Non-Hodgkins Lymphoma (NHL) (J-MIND)

A Phase 1b/2 Study of Tafasitamab, Tafasitamab Plus Lenalidomide, Tafasitamab Plus Parsaclisib, and Tafasitamab Plus Lenalidomide in Combination With R-CHOP in Japanese Participants With Non-Hodgkin Lymphoma

This is an open-label, multicenter study to evaluate safety and tolerability, determine the RP2Ds of tafasitamab alone in Japanese participants with R/R NHL, or to evaluate efficacy and safety of tafasitamab in combination with lenalidomide in Japanese participants with R/R DLBCL, or tafasitimab in combination with lenalidomide plus R-CHOP in Japanese participants with previously untreated DLBC, or tafasitimab in combination with lenalidomide in Japanese participants with previously R/R DLBC.

Study Overview

• Status: Active, not recruiting
• Conditions: Diffuse Large B-cell Lymphoma; Non Hodgkins Lymphoma
• Intervention / Treatment: Drug: tafasitamab; Drug: lenalidomide; Drug: parsaclisib; Drug: R-CHOP

• Study Type: Interventional
• Enrollment (Actual): 72
• Phase: Phase 2; Phase 1

Contacts and Locations

Study Locations

• Japan
  • Aichi, Japan, 464 8681
    • Aichi Cancer Center Hospital
  • Chiba, Japan, 260-8717
    • Chiba Cancer Center
  • Chiba, Japan, 277-8577
    • National Cancer Center Hospital East
  • Fukui, Japan, 910-1193
    • University of Fukui Hospital
  • Fukuoka, Japan, 811-1395
    • National Hospital Organization Kyushu Cancer Center
  • Fukuoka, Japan
    • Kyushu University Hospital
  • Hyōgo, Japan, 650-0047
    • Kobe City Medical Center General Hospital
  • Kanagawa, Japan, 259-1193
    • Tokai University Hospital
  • Kumamoto-ken, Japan, 860-008
    • Nho Kumamoto Medical Center
  • Kōtoku, Japan, 135-8550
    • The Cancer Institute Hospital Of JFCR
  • Matsuyama, Japan, 791-0280
    • Nho Shikoku Cancer Center
  • Miyagi, Japan, 980-8574
    • Tohoku University Hospital
  • Nagoya, Japan, 466-8650
    • Japanese Red Cross Nagoya Daini Hospital
  • Narita, Japan, 286-8520
    • IUHW Narita Hospital
  • Okayama, Japan, 701-1192
    • NHO Okayama Medical Center
  • Saitama-shi, Japan, 330-8503
    • Saitama Medical Center
  • Sapporo, Japan, 003-0804
    • Nho Hokkaido Cancer Center
  • Sayama, Japan, 589-8511
    • Kindai University Hospital
  • Suita-shi, Japan, 565-0871
    • Osaka University Hospital
  • Tachikawa, Japan, 190-0014
    • Nho Disaster Medical Center
  • Tokyo, Japan, 104-0045
    • National Cancer Center Hospital
  • Tsu, Japan, 514-0001
    • Mie University Hospital
  • Yokohama, Japan, 241-8515
    • Kanagawa Cancer Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Group 1 only: Biopsy-proven participants with relapsed or refractory NHL of DLBCL, FL or MZL.
• Groups 3, 4a and 5 only: Biopsy-proven participants with relapsed or refractory DLBCL.
• Groups 2 and 6 only: Biopsy-proven participants with DLBCL and another select lymphoid neoplasms.
• Participants must have at least 1 bi-dimensionally measurable lesion.
• ECOG performance status of 0 to 2.
• Participants with protocol defined laboratory criteria at screening as defined in the protocol.
• Group 1 only:

Received at least 1 previous systemic therapy line for the treatment of NHL. At least 1 previous therapy line must have included a CD20-targeted therapy (eg, RTX).

• Groups 2, 3, 4a and 6 only:

Received at least 1, but no more than 3, previous systemic therapy lines for the treatment of DLBCL. At least 1 previous therapy line must have included a CD20-targeted therapy (eg, RTX).

• Group 5 only: Participants must have:

  1. Untreated DLBCL.
  2. Ann Arbor Stage III to IV.
  3. IPI status of 3 to 5 or age-adjusted IPI 2-3 (in Group 5 only).
  4. Appropriate candidate for R-CHOP.
  5. LVEF of ≥ 50%, assessed by echocardiography.
• Willingness to avoid pregnancy or fathering children.

• In the opinion of investigator, the participant must:

  1. Not have a history of noncompliance in relation to medical regimens or be considered potentially unreliable and/or uncooperative.
  2. Be able to understand the reason for complying with the special conditions of the pregnancy prevention risk management plan and give written acknowledgement of this.

Exclusion Criteria:

• Any other histological type of lymphoma.
• History of prior non-hematologic malignancy.
• Congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias.
• Participants with known positive test result for hepatitis C, and hepatitis B.
• Known seropositive for or history of active viral infection with HIV.
• Known active bacterial, viral, fungal, mycobacterial, or other infection at screening.
• Known CNS lymphoma involvement - present or past medical history.
• History or evidence of clinically significant cardiovascular, CNS and/or other systemic disease that would in the investigator's opinion preclude participation in the study or compromise the participant's ability to give informed consent.
• History or evidence of rare hereditary problems of galactose intolerance, Lapp lactase deficiency or glucose-galactose malabsorption.
• History or evidence of interstitial lung disease.
• Vaccination with live vaccine within 21 days prior to study treatment (Note: throughout the study treatment period and at least 6 months after end of treatment, vaccination with live vaccines should be avoided).
• Major surgery within up to 30 days prior to signing the ICF, unless the participant is recovered at the time of signing the ICF.
• Any anticancer and/or investigational therapy within 14 days prior to the start of Cycle 1.
• Groups 2, 3, 4a, 5 and 6 only: Gastrointestinal abnormalities including the inability to take oral study treatment, requiring IV alimentation, or prior surgical procedure affecting absorption.
• Pregnancy or lactation.
• Groups 2, 3, 5 and 6 only: Participants who have history of deep venous thrombosis/embolism, threatening thromboembolism, stroke or known thrombophilia or are at a high risk for a thromboembolic event in the opinion of the investigator and who are not willing/able to take venous thromboembolic event prophylaxis during the entire treatment period if required
• Group 4a only: Use or expected use during the study of any restricted medications, including potent CYP3A4 inhibitors or inducers within 14 days or 5 half-lives (whichever is longer) before the date of study treatment administration

• Groups 1, 3, 4a and 6 only: Participants who have:

  1. Not discontinued CD20-targeted therapy, chemotherapy, radiotherapy, investigational anticancer therapy, or other lymphoma-specific therapy within the 14 days prior to Day 1 dosing.
  2. In the opinion of the investigator, not recovered sufficiently from the adverse toxic effects of prior therapies.

  3. Groups 1, 3 and 4a only: Previous treatment with CD19-targeted therapy (eg, CD19-CAR-T therapies, other CD19 mAbs including bispecific and ADCs).

     Groups 2 and 6 only: Previous treatment with tafasitamab. Note: Participants in Groups 2 and 6 who have received previous CD19 directed therapy (other than tafasitamab) must have CD19-positive lymphoma confirmed by a biopsy taken after completing the prior CD19-targeted therapy.

  4. Groups 2, 3 and 6 only: Been previously treated with IMiDs (eg, thalidomide or LEN).
  5. Group 4a only: Been previously treated with selective PI3Kδ or pan-PI3K inhibitors (eg, idelalisib, copanlisib, duvelisib) and/or Bruton's tyrosine kinase inhibitors (eg, ibrutinib).
  6. A history of hypersensitivity to compounds of similar biological or chemical composition to tafasitamab, IMiDs, and/or the excipients contained in the study treatment formulations (citric acid monohydrate, polysorbate 20, sodium citrate dehydrate and trehalose dihydrate).
  7. Undergone ASCT within the period ≤ 3 months before the signing of the ICF. Participants who have a more distant history of ASCT must exhibit full hematological recovery before enrolment into the study.
  8. Undergone previous allogenic stem cell transplantation.
  9. Concurrent treatment other anticancer or experimental treatments.

• Group 5 only: Participants who have:

  1. A history of radiation therapy to ≥ 25% of the bone marrow for other diseases or history of anthracycline therapy.
  2. A history of hypersensitivity or contraindication to any component of R-CHOP, LEN, or compounds of similar biological or chemical composition as tafasitamab and/or the excipients contained in the study treatment formulations or R-CHOP.
  3. Contraindication to any of the individual components of R-CHOP.
  4. Any anticancer and/or investigational therapy within 30 days prior to the start of Cycle 1, except for permitted prephase treatment defined below.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

4

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Part 3 : Dose Expansion of tafasitamab +parsaclisib; tafasitamab in combination with parsaclisib will be further evaluated in Group 4b at RP2D determined in Part 2	Drug: tafasitamab; tafasitamab will be administered at protocol defined timepoints based on the groups participants are assigned.; Other Names: MOR00208; INCMOR00208; Xmab5574; Drug: parsaclisib; parsaclisib will be administered at protocol defined timepoints based on the groups participants are assigned.
Experimental: Part 4: tafasitamab combination therapy; tafasitamiab in combination with lenalidomide will be further evaluated in Group 6 at RP2D determined in Part 2.	Drug: tafasitamab; tafasitamab will be administered at protocol defined timepoints based on the groups participants are assigned.; Other Names: MOR00208; INCMOR00208; Xmab5574; Drug: lenalidomide; lenalidomide will be administered orally at protocol defined timepoints based on the groups participants are assigned.
Experimental: Part 1 : tafasitimab monotherapy; Dose-finding to evaluate the safety and tolerability and to determine the RP2Ds of single-agent tafasitamab in Japanese participants with NHL. Part 1 consists of 1 group (Group 1) to evaluate weight-based doses of tafasitamab.	Drug: tafasitamab; tafasitamab will be administered at protocol defined timepoints based on the groups participants are assigned.; Other Names: MOR00208; INCMOR00208; Xmab5574
Experimental: Part 2 : tafasitamab combination therapy; tafasitamab will be combined with lenalidomide (Group 3) or parsaclisib (Group 4a) in R/R DLBCL participants or lenalidomide plus R-CHOP (Group 5) in previously untreated DLBCL participants. Modified tafasitamab dosing when combined with lenalidomide (Group 2) in participants with R/R DLBCL will be evaluated to determine the recommended clinical dose. The dose of tafasitamab will be based on the weight-based RP2D that is deemed safe and tolerable in Part 1.	Drug: tafasitamab; tafasitamab will be administered at protocol defined timepoints based on the groups participants are assigned.; Other Names: MOR00208; INCMOR00208; Xmab5574; Drug: lenalidomide; lenalidomide will be administered orally at protocol defined timepoints based on the groups participants are assigned.; Drug: parsaclisib; parsaclisib will be administered at protocol defined timepoints based on the groups participants are assigned.; Drug: R-CHOP; R-CHOP is a combination regimen consisting of rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisolone. R-CHOP will be administered at protocol defined timepoints based on the groups participants are assigned.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Part 1,2 and 3 : Treatment Emergent Adverse Events (TEAE'S)	Adverse events reported for the first time or worsening of a pre-existing event after first dose of study treatment.	Approximately 2 years
Part 4: Objective Response	Best Response of complete/complete metabolic response or partial/partial metabolic response	Approximately 27 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Part 1,2, 3 and 4 : Cmax of tafasitamab	Maximum observed serum concentration.	Approximately 27 months
Part 1, 2, 3 and 4: Cmin of tafasitamab	Minimum observed serum concentration over the dose interval.	Approximately 27 months
Part 4: Complete Response	Defined as the proportion of participants with Complete Response as determined by an IRC and investigator assessment according to the Lugano criteria	Approximately 27 months
Part 4: Duration of Response	Defined as the time from the date of first documented evidence of CR or PR until the first documented disease progression or death from any cause, whichever occurs first, among participants who achieve an objective response as determined by IRC and investigator assessment based on the Lugano criteria for response assessment	Approximately 27 months
Part 4: Progression-Free Survival	Defined as the time from the date of randomization until the first documented disease progression as determined by IRC and investigator assessment based on the Lugano criteria for response assessment or death from any cause, whichever occurs first.	Approximately 27 months
Part 4: Overall Survival	Defined as the time from the date of randomization until death from any cause.	Approximately 27 months
Part 4: Overall Response Rate	Defined as the proportion of participants with a CR or PR as determined by the investigator based on the Lugano criteria for response assessment	Approximately 27 months
Part 4: Treatment Emergent Adverse Events (TEAE'S)	Adverse events reported for the first time or worsening of a pre-existing event after first dose of study treatment.	Approximately 2 years

Collaborators and Investigators

• Sponsor: Incyte Biosciences Japan GK

Publications and helpful links

General Publications

• Izutsu K, Fukuhara N, Yuda J, Suehiro Y, Kusumoto S, Casadebaig ML, Suzukawa K, Fukushima K. Tafasitamab as Monotherapy or in Combination in Japanese Patients With B-Cell Non-Hodgkin Lymphoma: Results From the Phase 1b J-MIND Study. Cancer Sci. 2026 Apr;117(4):1093-1105. doi: 10.1111/cas.70306. Epub 2026 Jan 21.

Helpful Links

• To assess the safety and tolerability of tafasitamab alone or in combination with other drugs in Japanese participants with Non-Hodgkins Lymphoma (NHL) (J-MIND)

Study record dates

Study Major Dates

• Study Start (Actual): December 15, 2020
• Primary Completion (Actual): July 1, 2025
• Study Completion (Estimated): December 31, 2026

Study Registration Dates

• First Submitted: December 1, 2020
• First Submitted That Met QC Criteria: December 8, 2020
• First Posted (Actual): December 9, 2020

Study Record Updates

• Last Update Posted (Actual): May 18, 2026
• Last Update Submitted That Met QC Criteria: May 15, 2026
• Last Verified: May 1, 2026

More Information

Terms related to this study

• Keywords: INCMOR00208; tafasitamab
• Additional Relevant MeSH Terms: Neoplasms; Immune System Diseases; Neoplasms by Histologic Type; Lymphatic Diseases; Lymphoproliferative Disorders; Immunoproliferative Disorders; Lymphoma, B-Cell; Lymphoma; Hemic and Lymphatic Diseases; Lymphoma, Large B-Cell, Diffuse; Lymphoma, Non-Hodgkin; Organic Chemicals; Heterocyclic Compounds, 1-Ring; Heterocyclic Compounds; Heterocyclic Compounds, 2-Ring; Heterocyclic Compounds, Fused-Ring; Carboxylic Acids; Piperidines; Phthalimides; Phthalic Acids; Acids, Carbocyclic; Piperidones; Isoindoles; Lenalidomide; tafasitamab; parsaclisib; R-CHOP protocol
• Other Study ID Numbers: INCMOR 0208-102

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES

IPD Plan Description

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

• IPD Sharing Time Frame: Data will be shared after the primary publication or 2 years after the study has ended for market authorized products and indications.
• IPD Sharing Access Criteria: Data from eligible studies will be shared with qualified researchers according to the criteria and process described in the Data Sharing section of the www.incyteclinicaltrials.com website. For approved requests, the researchers will be granted access to anonymized data under the terms of a data sharing agreement.
• IPD Sharing Supporting Information Type: STUDY_PROTOCOL; SAP

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: Yes