HM2023-43:Ph 2 Trial of Tafasitamab With Lenalidomide+Rituximab in Treatment-naive FL and MZL

August 10, 2026 updated by: Masonic Cancer Center, University of Minnesota

HM2023-43: A Phase 2 Trial of Tafasitamab in Combination With Lenalidomide+Rituximab in Treatment-naive Follicular Lymphoma and Marginal Zone Lymphoma

The study follows a Simon's two-stage phase II trial design to evaluate the safety and efficacy of tafasitamab added to rituximab and lenalidomide for two treatment-naïve, parallel, independent cohorts: follicular lymphoma (FL) and marginal zone lymphoma (MZ). Each cohort, FL and MZ, will be evaluated separately. This study is presented to the patient and consent is signed prior to the initiation of treatment for their primary malignancy.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
65

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • Minnesota
      • Minneapolis, Minnesota, United States, 55455
        • Recruiting
        • Masonic Cancer Center
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Histologically confirmed marginal zone lymphoma
  • Histologically confirmed CD20+ follicular lymphoma stage 1, 2 or 3a
  • No prior systemic therapy for lymphoma
  • Must be in need of treatment as evidenced by one or more of the following criteria:
  • Bulky disease defined as:
  • a nodal or extranodal (except spleen) mass >7cm in its greater diameter or,
  • involvement of at least 3 nodal or extranodal sites (each with a diameter greater than >3 cm)
  • Presence of at least one of the following B symptoms:
  • fever (>38C) of unclear etiology
  • night sweats
  • weight loss greater than 10% within the prior 6 months
  • Any other symptoms attributable to lymphomatous mass
  • Endangerment of vital organ due to lymphomatous mass including but not limited to:
  • Symptomatic or massive splenomegaly
  • Compression syndrome (including but not limited to ureteral, orbital, gastrointestinal)
  • Pleural, pericardial or ascitic effusion regardless of cell count
  • Follicular lymphoma in leukemic phase (>5 X 109/L circulating cells)

OR:

  • Follicular lymphoma graded high-risk by FLIPI2 score (see Appendix III)
  • Adequate organ function within 14 days (28 days for pulmonary or cardiac) of study registration
  • Participants who are of childbearing potential or have partners of child-bearing potential must agree to either total abstinence or use of both a highly effective (IUD, hormonal contraceptives, tubal ligation or vasectomy), and effective contraception (male or female condom, diaphragm or cervical cap) for the duration of treatment and for 12 months after the last dose of study drug.
  • Able to tolerate prophylactic anticoagulation/antiplatelet therapy while on lenalidomide
  • Able to provide written voluntary consent prior to the performance of any research related tests or procedures (or the subject's legally authorized representative (LAR) if enrollment of persons with diminished capacity is permitted - general permitted for Phase II and greater studies)

Exclusion Criteria:

  • Seropositive for or active viral infection with hepatitis B virus (HBV):
  • HBV surface antigen (HBsAg) positive
  • HBV surface antigen (HBsAg) negative, HBV surface antibody (anti-HBs) positive and/or HBV core antibody (anti-HBc) positive, and detectable viral DNA
  • Hepatitis C virus (HCV) positive subjects with chronic hepatitis C, or subjects with an active hepatitis C infection requiring anti-viral medication (at time of randomization).
  • Known seropositive for or active viral infection with human immunodeficiency virus (HIV).
  • Prior history of lenalidomide use
  • Prior history of malignancies, other than follicular or marginal zone lymphoma, unless the subject has been free of the disease for ≥ 5 years.
  • Peripheral neuropathy ≥ grade 2 at time of screening
  • Uncontrolled intercurrent illness.
  • Active infection (requiring systemic therapy) or has received a live vaccine within 14 days prior to first dose of study drug.
  • Presence or history of CNS involvement by lymphoma
  • Patients who are not willing to take venous thromboembolic (VTE) prophylaxis or antiplatelet therapy
  • Recent ( <1 year ) arterial thrombosis (any) or venous thrombosis ≥ grade 3 by CTCAE 5.0.
  • Pregnant or breastfeeding as agents used in this study are Pregnancy Category X.

Women of childbearing potential must have two negative pregnancy tests (serum or urine) prior to their first dose of lenalidomide, and must agree to scheduled pregnancy testing while on treatment regardless of their birth control choice, per the requirements of the lenalidomide risk evaluation and mitigation strategy (REMS) program.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

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

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Follicular Lymphoma
On Cycle 1, patients will receive an infusion of tafasitamab 12 mg/kg IV on Day 1, Day 8, Day 15 and day 22, rituximab 375 mg/m2 IV on Day 1, Day 8, Day 15 and Day 22, and lenalidomide 20 mg PO Day 1 through Day 21. On Cycles 2-3, patients will receive tafasitamab 12 mg/kg IV on Day 1, Day 8, Day 15 and day 22, rituximab 375 mg/m2 IV on day 1, and lenalidomide 20 mg PO Day 1-21. On Cycles 4-6, patients will receive an infusion of tafasitamab 12 mg/kg IV on Day 1, Rituximab 375 mg/m2 IV on Day 1, and lenalidomide 20 mg PO from Day 1-21. At the end of Cycle 6, patients on both cohorts will be assessed by Lugano standard. Patients in complete remission (CR) will continue on tafasitamab/rituximab and discontinue lenalidomide. Patients with partial response (PR) or stable disease (SD) will continue on all three drugs, tafasitamab/rituximab/lenalidomide, and if progressive disease (PD) will discontinue study.
Drug: Rituximab
Rituximab 375 mg/m2 IV on day 1
Other Names:
  • R2
Drug: Tafasitamab
Tafasitamab 12 mg/kg IV on Day 1, Day 8, Day 15 and day 22.
Drug: Lenalidomide
Lenalidomide 20 mg PO Day 1 through Day 21
Experimental: Marginal Zone Lymphoma
On Cycle 1, patients will receive an infusion of tafasitamab 12 mg/kg IV on Day 1, Day 8, Day 15 and day 22, rituximab 375 mg/m2 IV on Day 1, Day 8, Day 15 and Day 22, and lenalidomide 20 mg PO Day 1 through Day 21. On Cycles 2-3, patients will receive tafasitamab 12 mg/kg IV on Day 1, Day 8, Day 15 and day 22, rituximab 375 mg/m2 IV on day 1, and lenalidomide 20 mg PO Day 1-21. On Cycles 4-6, patients will receive an infusion of tafasitamab 12 mg/kg IV on Day 1, Rituximab 375 mg/m2 IV on Day 1, and lenalidomide 20 mg PO from Day 1-21. At the end of Cycle 6, patients on both cohorts will be assessed by Lugano standard. Patients in complete remission (CR) will continue on tafasitamab/rituximab and discontinue lenalidomide. Patients with partial response (PR) or stable disease (SD) will continue on all three drugs, tafasitamab/rituximab/lenalidomide, and if progressive disease (PD) will discontinue study.
Drug: Rituximab
Rituximab 375 mg/m2 IV on day 1
Other Names:
  • R2
Drug: Tafasitamab
Tafasitamab 12 mg/kg IV on Day 1, Day 8, Day 15 and day 22.
Drug: Lenalidomide
Lenalidomide 20 mg PO Day 1 through Day 21

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Complete response (CR)
Time Frame: 1 year
Estimate complete response (CR) at the end of study (after 12 cycles around 1 year) regimen of tafasitamab with lenalidomide and rituximab.
1 year

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Complete response (CR)
Time Frame: 6 months
Estimate complete response (CR) rate after 6 cycles of treatment.
6 months
Overall response rate (ORR)
Time Frame: 1 year
Estimate overall response rate (ORR) at the end of treatment (around 1 year).
1 year
Progression of disease (POD24)
Time Frame: 2 years
Estimate progression of disease (POD24) within 24 months (2 years)
2 years
Progression free survival (PFS)
Time Frame: 3 years
Estimate progression free survival (PFS) at 3 years after registration on study
3 years
Overall survival (OS)
Time Frame: 3 years
Estimate overall survival (OS) at 3 years after registration on study
3 years
Rate of histologic conversion to DLBCL
Time Frame: 3 years
Estimate rate of histologic conversion to DLBCL at any point on study.
3 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Masonic Cancer Center, University of Minnesota

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Incyte Corporation

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 7, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 8, 2029

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 8, 2031

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 23, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 23, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 27, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 12, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 10, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2023LS183

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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