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A Clinical Trial of MK-1045 and Rituximab in People With Follicular Lymphoma (MK-1045-007)

A Phase 2/3 Randomized, Open-label Study of MK-1045 in Combination With Rituximab in Participants With 1L Follicular Lymphoma

Status
Recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07634471
Enrollment
960
Registered
2026-06-08
Start date
2026-06-22
Completion date
2035-07-23
Last updated
2026-07-10

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

Conditions

Follicular Lymphoma

Brief summary

Researchers are looking for new ways to treat follicular lymphoma (FL). A standard (usual) treatment for FL includes a targeted therapy called rituximab and chemotherapy. In this study, researchers want to learn if giving a study medicine called MK-1045 and rituximab can treat FL. MK-1045 is a type of treatment called immunotherapy. The goals of this study are to learn: * About the safety of MK-1045 and rituximab, and if people tolerate them when given together * If people who receive MK-1045 and rituximab have the cancer go away * If people who receive MK-1045 and rituximab live longer without their cancer getting worse compared to those who receive standard treatment (rituximab and chemotherapy)

Interventions

BIOLOGICALMK-1045

Intravenous (IV) infusion

BIOLOGICALRituximab

IV infusion

IV infusion

DRUGBendamustine

IV infusion

DRUGCyclophosphamide

IV infusion

DRUGVincristine

IV infusion

DRUGPrednisone

Per approved product label

DRUGPrednisolone

Per approved product label

DRUGDoxorubicin Hydrochloride

IV infusion

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Has biopsy-proven, previously untreated, histologically confirmed cluster of differentiation (CD)19-positive and CD20-positive classical follicular lymphoma (FL), with Ann Arbor Stage II-IV disease and a Follicular Lymphoma International Prognostic Index (FLIPI) score of 2-5. * Has radiographically measurable disease per the Lugano Response Criteria. * Has provided a newly obtained core or excisional biopsy or archival tissue of a tumor lesion not previously irradiated. * If human immunodeficiency virus (HIV)-positive, has well-controlled HIV on antiretroviral therapy (ART). * If hepatitis B surface antigen (HBsAg)-positive, has undetectable hepatitis B virus (HBV) viral load and has received HBV antiviral therapy for at least 4 weeks and will continue it. * If history of hepatitis C virus (HCV) infection, has undetectable HCV viral load.

Exclusion criteria

* Has received prior systemic anticancer therapy or radiotherapy for FL. * Has follicular large B-cell lymphoma or any other subtype of FL other than classical FL. * Has FL that has transformed into a more aggressive type of lymphoma. * History or presence of clinically relevant central nervous system (CNS) diseases. * Has history of serious cardiovascular and cerebrovascular diseases. * Is HIV-infected with a history of Kaposi's sarcoma and/or Multicentric Castleman's Disease. * Has received a live or live-attenuated vaccine within 30 days before the first dose of study intervention. * Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy. * Has a known additional malignancy that is progressing or has required active treatment within the past 3 years. * Has known active CNS lymphoma or involvement. * Has an active autoimmune disease that has required systemic treatment in the past 2 years. * Has active infection requiring systemic therapy. * Has chronic liver disease, including liver cirrhosis of Child-Pugh class B or C. * Has not adequately recovered from major surgery or has ongoing surgical complications.

Design outcomes

Primary

MeasureTime frameDescription
Part 1: Number of Participants Who Experience an Adverse Event (AE)Up to approximately 15 monthsAn AE is defined as any unfavorable and unintended sign, symptom, disease, or worsening of preexisting condition temporally associated with study treatment and irrespective of causality to study treatment.
Part 1: Number of Participants Who Discontinue Study Treatment Due to an AEUp to approximately 12 monthsAn AE is defined as any unfavorable and unintended sign, symptom, disease, or worsening of preexisting condition temporally associated with study treatment and irrespective of causality to study treatment.
Part 1: Number of Participants Who Experience Dose Limiting Toxicity (DLT)Up to approximately 36 daysDLT will be defined as any drug-related AE observed during the DLT evaluation period that results in a change to a given dose or a delay in initiating the next cycle.
Part 1: Complete Response (CR) RateUp to approximately 60 monthsFor participants who demonstrate a confirmed Complete Response (CR: disappearance of all target lesions) per Lugano response criteria. CR rate is defined as the percentage of participants who experience a CR. The CR rate as assessed by physician investigator will be presented.
Part 2: Progression-Free Survival (PFS)Up to approximately 63 monthsPFS is defined as the time from randomization to the first documented disease progression per Lugano response criteria by Blinded Independent Central Review (BICR) or death due to any cause, whichever occurs first.

Secondary

MeasureTime frameDescription
Part 1: Objective Response Rate (ORR)Up to approximately 60 monthsORR is defined as the percentage of participants with CR (CR: disappearance of all target lesions) or Partial Response (PR: at least a 30% decrease in the sum of diameters of target lesions) per Lugano response criteria. The percentage of participants who experience CR or PR as assessed by physician investigator will be presented.
Part 1: Duration of CRUp to approximately 60 monthsFor participants who demonstrate CR (CR: disappearance of all target lesions) at end of treatment per Lugano response criteria, defined as the time from the first documented evidence of CR until disease progression or death due to any cause, whichever occurs first.
Part 1: Area Under the Concentration-Time Curve at Steady State (AUCss) of MK-1045Predose and at designated time points post-dose (up to approximately 12 months)Blood samples will be collected at multiple time points to estimate the AUCss of MK-1045.
Part 1: Maximum Concentration (Cmax) of MK-1045Predose and at designated time points post-dose (up to approximately 12 months)Blood samples will be collected at multiple time points to estimate the Cmax of MK-1045.
Part 1: Trough Concentration (Ctrough) of MK-1045Predose and at designated time points post-dose (up to approximately 12 months)Blood samples will be collected at multiple time points to estimate the Ctrough of MK-1045.
Part 2: CR Rate at 30 Months30 monthsFor participants who demonstrate a confirmed CR (CR: disappearance of all target lesions) per Lugano response criteria. CR rate is defined as the percentage of participants who experience a CR by month 30. The CR rate as assessed by BICR at month 30 will be presented.
Part 2: ORRUp to approximately 63 monthsORR is defined as the percentage of participants with CR (CR: disappearance of all target lesions) or PR (PR: at least a 30% decrease in the sum of diameters of target lesions) per Lugano response criteria. The percentage of participants who experience CR or PR as assessed by BICR will be presented.
Part 2: Overall Survival (OS)Up to approximately 63 monthsOS is defined as the time from randomization to death due to any cause.
Part 2: Event-Free Survival (EFS)Up to approximately 63 monthsEFS is defined as the time randomization to the first documented disease progression per Lugano response criteria by BICR, death due to any cause, initiation of a new anticancer therapy or a positive biopsy for residual disease, whichever occurs first.
Part 2: Duration of CRUp to approximately 63 monthsFor participants who demonstrate CR (CR: disappearance of all target lesions) per Lugano response criteria by BICR, defined as the time from the first documented evidence of CR until disease progression or death due to any cause, whichever occurs first.
Part 2: Number of Participants Who Experience an AEUp to approximately 15 monthsAn AE is defined as any unfavorable and unintended sign, symptom, disease, or worsening of preexisting condition temporally associated with study treatment and irrespective of causality to study treatment.
Part 2: Number of Participants Who Discontinue Study Treatment Due to an AEUp to approximately 12 monthsAn AE is defined as any unfavorable and unintended sign, symptom, disease, or worsening of preexisting condition temporally associated with study treatment and irrespective of causality to study treatment.
Part 2: Change From Baseline in Health-Related Quality Of Life (HRQoL) on Functional Assessment of Cancer Therapy-Lymphoma (FACT-Lym) Trial Outcome Index (TOI)Baseline and up to approximately month 13The FACT-Lym is a 42-item questionnaire designed to measure HRQoL and cancer-specific symptoms in non-Hodgkin lymphoma patients. Subscales include FACT-General (FACT-G), FACT-Trial Outcome Index (FACT-TOI), FACT-Lym total score (FACT-Lym TS), and the Lymphoma subscale (Lym S). The Lym S has a single domain consisting of 15 items specific to lymphoma burden with a score ranging from 0 to 60. FACT-G has 4 well-being domains, physical (7 items), social/family (7), emotional (6), and functional (7), with scores ranging from 0 to 108. FACT-TOI combines FACT-G's physical and functional domains with Lym S, with scores ranging from 0 to 116. FACT-Lym TS combines FACT-G with Lym S, with scores ranging from 0 to 168. The scoring of FACT-Lym is on a 5-point Likert scale from 0 to 4, with 0= not at all, 1= a little bit, 2= somewhat, 3=quite a bit, 4=very much. The higher the score the better the quality of life.
Part 2: Change From Baseline in HRQoL on FACT-Lym Total ScoreBaseline and up to approximately month 13The FACT-Lym is a 42-item questionnaire designed to measure HRQoL and cancer-specific symptoms in non-Hodgkin lymphoma patients. Subscales include FACT-General (FACT-G), FACT-Trial Outcome Index (FACT-TOI), FACT-Lym total score (FACT-Lym TS), and the Lymphoma subscale (Lym S). The Lym S has a single domain consisting of 15 items specific to lymphoma burden with a score ranging from 0 to 60. FACT-G has 4 well-being domains, physical (7 items), social/family (7), emotional (6), and functional (7), with scores ranging from 0 to 108. FACT-TOI combines FACT-G's physical and functional domains with Lym S, with scores ranging from 0 to 116. FACT-Lym TS combines FACT-G with Lym S, with scores ranging from 0 to 168. The scoring of FACT-Lym is on a 5-point Likert scale from 0 to 4, with 0= not at all, 1= a little bit, 2= somewhat, 3=quite a bit, 4=very much. The higher the score the better the quality of life.
Part 2: Change From Baseline in HRQoL on FACT-Lym Physical Well-being (PWB) (Items General Physical [GP]1 Through GP7)Baseline and up to approximately month 13The FACT-Lym is a 42-item questionnaire designed to measure HRQoL and cancer-specific symptoms in non-Hodgkin lymphoma patients. Subscales include FACT-General (FACT-G), FACT-Trial Outcome Index (FACT-TOI), FACT-Lym total score (FACT-Lym TS), and the Lymphoma subscale (Lym S). The Lym S has a single domain consisting of 15 items specific to lymphoma burden with a score ranging from 0 to 60. FACT-G has 4 well-being domains, physical (7 items), social/family (7), emotional (6), and functional (7), with scores ranging from 0 to 108. FACT-TOI combines FACT-G's physical and functional domains with Lym S, with scores ranging from 0 to 116. FACT-Lym TS combines FACT-G with Lym S, with scores ranging from 0 to 168. The scoring of FACT-Lym is on a 5-point Likert scale from 0 to 4, with 0= not at all, 1= a little bit, 2= somewhat, 3=quite a bit, 4=very much. The higher the score the better the quality of life.

Countries

Israel, Spain, Taiwan, Turkey (Türkiye), United States

Contacts

CONTACTToll Free Number
Trialsites@msd.com1-888-577-8839
STUDY_DIRECTORMedical Director

Merck Sharp & Dohme LLC

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 11, 2026