Lymphoma, Non-HodgkinPhase 1/2WaveSpan-008NCT07519772
A Clinical Study of MK-1045 in People With Non-Hodgkin Lymphoma (MK-1045-008)
A Phase 1/2 study testing MK-1045 in people with Lymphoma, Non-Hodgkin and Lymphoma, Follicular, run by Merck Sharp & Dohme LLC at 52 sites in 16 countries.
Trial summary
Researchers are looking for new ways to treat 2 types of non-Hodgkin lymphoma (NHL) called follicular lymphoma (FL) and diffuse large B-cell lymphoma (DLBCL). FL is a slow-growing type of NHL. DLBCL is a fast-growing type of NHL. NHL is a cancer in the lymphatic system that causes swollen lymph nodes. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Lymphoma, Non-Hodgkin, Lymphoma, Follicular, Lymphoma, Large B-Cell, Diffuse
- What is being tested?
- MK-1045
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 280 participants
- Where
- 52 sitesin 16 countries
- Study dates
- 3 May 2026to 1 Apr 2031
- Phase
- Phase 1/2
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- The main inclusion criteria include but are not limited to the following:
- Has disease that has relapsed (disease progression after remission) or is refractory (failure to achieve complete or partial response) to at least 2 prior systemic lines of therapy.
- Has a histologically confirmed diagnosis of follicular lymphoma (FL) or diffuse large B-cell lymphoma (DLBCL).
- DLBCL participants only: has progressed after or is ineligible for transplant and chimeric antigen receptor T (cell) (CAR-T) therapy.
- Has provided tumor tissue sample (archival or newly obtained, if performed per standard of care).
- Has documented retained expression of cluster of differentiation 19 (CD19) in tumor tissue obtained by biopsy after disease progression on CD19-targeting therapy, if experienced disease progression after prior CD19-targeting therapy.
Show all 10Show fewer
- Has well-controlled human immunodeficiency virus (HIV) on antiretroviral therapy if has a history of HIV infection.
- Has undetectable hepatitis B virus (HBV) viral load and received and will continue to receive HBV antiviral therapy if hepatitis B surface antigen (HBsAg)-positive.
- Has undetectable hepatitis C virus (HCV) viral load and received HCV antiviral therapy if has a history of HCV infection.
- Has radiographically measurable disease per Lugano Response Criteria.
Who cannot join
- The main exclusion criteria include but are not limited to the following:
- Has received a solid organ transplant.
- Had or has clinically relevant central nervous system (CNS) diseases.
- Has a history of serious cardiovascular or cerebrovascular diseases.
- Had prior allogenic stem cell transplantation with acute graft-versus-host-disease (GVHD); has ongoing evidence of chronic GVHD manifesting as skin involvement, diarrhea, or increased serum bilirubin; or requires systemic immunosuppression for GVHD.
- Is HIV-infected with a history of Kaposi's sarcoma and/or Multicentric Castleman's Disease.
Show all 15Show fewer
- Has received a live or live-attenuated vaccine within 30 days of randomization.
- Has received prior CAR-T therapy within 3 months before the first dose of the study intervention.
- Has a known additional malignancy that is progressing or required active treatment within the past 2 years.
- Has known active CNS lymphoma or involvement.
- Has active autoimmune disease that required systemic treatment in the past 2 years.
- Has active infection requiring systemic therapy.
- Has a history of severe bleeding disorders.
- Has not recovered from major surgery or has ongoing surgical complications.
- Has diagnosis of primary mediastinal B-cell lymphoma.
Trial locations and contacts
52 sites in 16 countries. Contact the study team or a site near you to ask about taking part.
52 sites in 16 countries
China5 sites, 5 recruiting
- Recruiting
Beijing Cancer hospital ( Site 1701)
Beijing, Beijing Municipality, 100142
Study Coordinator, +86 010-88196922
- Recruiting
Fujian Provincial Cancer Hospital.. ( Site 1704)
Fuzhou, Fujian, 350014
Study Coordinator, +86059183660063
- Recruiting
Sun Yat-Sen University Cancer Center ( Site 1712)
Guangzhou, Guangdong, 510060
Study Coordinator, +8602087343349
- Recruiting
Fudan University Shanghai Cancer Center ( Site 1711)
Shanghai, Shanghai Municipality, 200032
Study Coordinator, 8602138196379
- Recruiting
Henan Cancer Hospital ( Site 1702)
Zhengzhou, Henan, 450003
Study Coordinator, 65587791
Israel5 sites, 5 recruiting
- Recruiting
Carmel Hospital ( Site 0602)
Haifa, 3436212
Study Coordinator, +97248250211
- Recruiting
Shaare Zedek Medical Center ( Site 0603)
Jerusalem, 9103102
Study Coordinator, +972544922952
- Recruiting
Haddasah Medical Center ( Site 0600)
Jerusalem, 9112001
Study Coordinator, +972539101736
- Recruiting
Sheba Medical Center ( Site 0601)
Ramat Gan, 5265601
Study Coordinator, 97235303030
- Recruiting
Sourasky Medical Center. ( Site 0604)
Tel Aviv, 6423906
Study Coordinator, +97236974444
Spain5 sites, 5 recruiting
- Recruiting
Institut Català d'Oncologia (ICO) - Badalona ( Site 1103)
Badalona, Barcelona, 08916
Study Coordinator, 34934978387
- Recruiting
Hospital Universitari Vall de Hebron ( Site 1102)
Barcelona, 08035
Study Coordinator, +34 932746000
- Recruiting
Hospital Universitario Gregorio Maranon ( Site 1101)
Madrid, 28007
Study Coordinator, +34915868888
- Recruiting
Hospital Universitario 12 de Octubre ( Site 1105)
Madrid, 28041
Study Coordinator, +34917792809
- Recruiting
Hospital Virgen de la Victoria ( Site 1104)
Málaga, Malaga, 29010
Study Coordinator, 34951032508
Turkey (Türkiye)5 sites, 5 recruiting
- Recruiting
Hacettepe Universitesi Tip Fakultesi Hastanesi ( Site 1000)
Ankara, 06230
Study Coordinator, +903123052941
- Recruiting
Antalya Egitim ve Arastirma Hastanesi ( Site 1003)
Antalya, 7100
Study Coordinator, +905315269050
- Recruiting
Koç Üniversitesi Hastanesi ( Site 1001)
Istanbul, 34010
Study Coordinator, 02124678700
- Recruiting
Medipol Mega Universite Hastanesi ( Site 1002)
Istanbul, 34214
Study Coordinator, +905426202524
- Recruiting
Samsun Ondokuz Mayis Universitesi Tip Fakultesi Hastanesi ( Site 1005)
Samsun, 55270
Study Coordinator, +905442398796
United States4 sites, 4 recruiting
- Recruiting
University Hospitals of Cleveland ( Site 0113)
Cleveland, Ohio, 44106
Study Coordinator, 216-844-0139
- Recruiting
Colorado Blood Cancer Institute ( Site 7000)
Denver, Colorado, 80218
Study Coordinator, 720-748-4800
- Recruiting
Cedar Sinai Cancer Center ( Site 0119)
Los Angeles, California, 90048
Study Coordinator, 310-423-3277
- Recruiting
SCRI Oncology Partners ( Site 0100)
Nashville, Tennessee, 37203
Study Coordinator, 844-482-4812
Argentina4 sites, 4 recruiting
- Recruiting
Hospital Aleman ( Site 1400)
CABA, C1118AAT
Study Coordinator, +541148277000
- Recruiting
Instituto Alexander Fleming ( Site 1404)
Ciudad Autonoma de Buenos Aires, Buenos Aires, C1426ANZ
Study Coordinator, +541132218900
- Recruiting
Hospital Universitario Austral ( Site 1402)
Pilar, Buenos Aires, B1629AHJ
Study Coordinator, +54 (0230) 438-8888
- Recruiting
Sanatorio Nuestra Senora del Rosario ( Site 1403)
Rosario, Santa Fe Province, 2001
Study Coordinator, +5493416149225
Italy4 sites, 4 recruiting
- Recruiting
Istituto Nazionale Tumori IRCCS Fondazione Pascale-SC Ematologia Oncologica ( Site 0700)
Campania, Napoli, 80131
Study Coordinator, 00390815903382
- Recruiting
INOC - Istituto Nazionale Oncologico Candiolo ( Site 0701)
Candiolo, Piedmont, 10060
Study Coordinator, +390119933355
- Recruiting
Istituto Europeo di Oncologia IRCCS ( Site 0702)
Milan, 20141
Study Coordinator, 0039 02 57489403
- Recruiting
Fondazione Policlinico Universitario Agostino Gemelli ( Site 0705)
Roma, 00168
Study Coordinator, 00390630154180
Poland4 sites, 4 recruiting
- Recruiting
Narodowy Instytut Onkologii - Oddzial w Gliwicach ( Site 0901)
Gliwice, Silesian Voivodeship, 44-102
Study Coordinator, +48322788237
- Recruiting
Pratia Onkologia Katowice ( Site 0902)
Katowice, Silesian Voivodeship, 40-519
Study Coordinator, +48501714019
- Recruiting
Pratia MCM Krakow ( Site 0903)
Krakow, Lesser Poland Voivodeship, 30-727
Study Coordinator, +48122958160
- Recruiting
Narodowy Instytut Onkologii im. Marii Sklodowskiej-Curie - P-Klinika Nowotworów Układu Chłonnego ( Site 0900)
Warsaw, Masovian Voivodeship, 02-781
Study Coordinator, +48225462000
Australia3 sites, 3 recruiting
- Recruiting
Royal Adelaide Hospital ( Site 0205)
Adelaide, South Australia, 5000
Study Coordinator, +61 466 650 767
- Recruiting
Box Hill Hospital ( Site 0202)
Box Hill, Victoria, 3128
Study Coordinator, +611300342255
- Recruiting
Townsville University Hospital ( Site 0204)
Townsville, Queensland, 4814
Study Coordinator, 0744331111
Brazil3 sites, 3 recruiting
- Recruiting
Hospital Erasto Gaertner ( Site 1503)
Curitiba, Paraná, 81520-060
Study Coordinator, 554133615104
- Recruiting
Hospital das Clinicas FMUSP ( Site 1502)
São Paulo, São Paulo, 01246-000
Study Coordinator, 551138933504
- Recruiting
Hospital Paulistano ( Site 1504)
São Paulo, 01321-001
Study Coordinator, 55113141-1083
Canada2 sites, 2 recruiting
- Recruiting
Hopital Maisonneuve-Rosemont CIUSSS de l Est de L Ile de Montreal ( Site 0305)
Montreal, Quebec, H1T 2M4
Study Coordinator, 514-252-3400
- Recruiting
Princess Margaret Cancer Centre ( Site 0301)
Toronto, Ontario, M5G 2M9
Study Coordinator, 416-946-4558
Chile2 sites, 2 recruiting
- Recruiting
Clínica Alemana de Santiago ( Site 1608)
Santiago, Region M. de Santiago, 7650568
Study Coordinator, 56222101111 ext 6218
- Recruiting
Pontificia Universidad Catolica de Chile-CICUC ( Site 1603)
Santiago, Region M. de Santiago, 8330034
Study Coordinator, +56934331806
South Korea2 sites, 2 recruiting
- Recruiting
Seoul National University Hospital ( Site 0800)
Seoul, 03080
Study Coordinator, +82220722228
- Recruiting
The Catholic University of Korea, Yeouido St. Mary's Hospital ( Site 0801)
Seoul, 07345
Study Coordinator, +82237791049
United Kingdom2 sites, 2 recruiting
- Recruiting
The Christie NHS Foundation Trust ( Site 1300)
Manchester, M20 4BX
Study Coordinator, +4401614468201
- Recruiting
Derriford Hospital ( Site 1304)
Plymouth, Devon, Pl6 8DH
Study Coordinator, +441752431043
France1 site, 1 recruiting
- Recruiting
Hopital Saint Louis ( Site 0405)
Paris, Île-de-France Region, 75010
Study Coordinator, +330142495384
Germany1 site, 1 recruiting
- Recruiting
UKGM Gießen/Marburg ( Site 0505)
Giessen, Hesse, 35392
Study Coordinator, +49 64198542651
About this study
Official title: A Phase 1b/2 Study to Evaluate the Safety and Efficacy of MK-1045 Monotherapy or in Combination With Other Anticancer Agents in Participants With Non-Hodgkin Lymphoma
Researchers are looking for new ways to treat 2 types of non-Hodgkin lymphoma (NHL) called follicular lymphoma (FL) and diffuse large B-cell lymphoma (DLBCL). FL is a slow-growing type of NHL. DLBCL is a fast-growing type of NHL. NHL is a cancer in the lymphatic system that causes swollen lymph nodes. The lymphatic system is part of the immune system.
In this study, researchers want to learn if MK-1045 can treat FL and DLBCL. MK-1045 is a study treatment that is an immunotherapy, which helps the immune system fight cancer.
The goals of this study are to learn how safe MK-1045 is and if people tolerate it. Researchers also want to see if FL and DLBCL respond (the cancer gets smaller or goes away) to treatment.
- Being tested
- MK-1045
- Medical subject headings
- Lymphoma, Non-Hodgkin, Lymphoma, Follicular, Lymphoma, Large B-Cell, Diffuse
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
MK-1045Biological
Also called CN-201
Intravenous (IV) Infusion or Subcutaneous (SC) injection
| Study group | Role | What they receive |
|---|---|---|
| Arm 1: Follicular Lymphoma (FL) MK-1045 Monotherapy Dose Optimization | Experimental | Participants will receive Dosage A of MK-1045 by Intravenous (IV) infusion for up to approximately 1 year of treatment or until discontinuation. Receives: Biological: MK-1045 |
| Arm 2: FL MK-1045 Longer Dosing Interval | Experimental | Participants will receive Dosage B of MK-1045 by Intravenous (IV) infusion for up to approximately 1 year of treatment or until discontinuation. Receives: Biological: MK-1045 |
| Arm 3: FL MK-1045 Subcutaneous Administration | Experimental | Participants will receive Dosage C of MK-1045 by subcutaneous (SC) injection for up to approximately 1 year of treatment or until discontinuation. Receives: Biological: MK-1045 |
| Arm 4: Diffuse Large B-cell Lymphoma (DLBCL) MK-1045 Monotherapy Dose Optimization | Experimental | Participants will receive Dosage D of MK-1045 by Intravenous (IV) infusion for up to approximately 1 year of treatment or until discontinuation. Receives: Biological: MK-1045 |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of Participants Who Experience an Adverse Event (AE)
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The number of participants who experience an AE will be reported.
Measured: Up to approximately 49 months
Number of Participants Who Discontinue Study Treatment Due to an AE
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The number of participants who discontinue study treatment due to an AE will be reported.
Measured: Up to approximately 12 months
Arms 2 and 3: Number of Participants Who Experience Dose Limiting Toxicity (DLT)
DLT will be defined as any drug-related AE observed during the DLT evaluation period (up to 28 days) that results in a change to a given dose or a delay in initiating the next treatment.
Measured: Up to approximately 28 days
Arms 1, 2, and 4: Objective Response Rate (ORR) per Lugano Response Criteria as assessed by Blinded Independent Central review (BICR)
ORR is defined as the percentage of the participants who had complete response (CR) or partial response (PR) and will be evaluated using computed tomography (CT) and positron emission tomography (PET)-CT. Response will be assessed based on the International Working Group Criteria: Lugano Classification (Cheson et al, Journal of Clinical Oncology, 2014). CR is complete metabolic (no/minimal fluorodeoxyglucose [FDG] uptake) and radiologic response (target lesions regress to ≤1.5 cm in longest transverse diameter of a lesion) and no new lesions. PR is partial metabolic (moderate/high FDG uptake) and radiologic response (≥50% decrease in sum of product diameters for multiple lesions of up to 6 target measurable nodes and extranodal sites, no increase in lesions, and spleen regressed by >50% in length beyond normal). In Arms 1, 2, and 4, the percentage of participants who experience CR or PR as assessed by BICR will be presented.
Measured: Up to approximately 49 months
Secondary outcomes (8)
Arms 1, 2, and 4: Duration of Response (DOR) per Lugano Response Criteria as assessed by BICR
For participants who demonstrate a confirmed complete response (CR) or partial response (PR), DOR is defined as the time from CR or PR to documented disease progression or death. Participants are assessed using computed tomography (CT) and positron emission tomography (PET)-CT and response will be evaluated based on the Lugano Classification (Cheson et al, Journal of Clinical Oncology, 2014). CR is complete metabolic (no/minimal fluorodeoxyglucose [FDG] uptake) and radiologic response (target lesions regress to ≤1.5 cm in longest transverse diameter of a lesion) and no new lesions. PR is partial metabolic (moderate/high FDG uptake) and radiologic response (≥50% decrease in sum of product diameters (SPD) for multiple lesions of up to 6 target measurable nodes and extranodal sites, no increase in lesions, and spleen regressed by >50% in length beyond normal). DOR as assessed by BICR will be presented for Arms 1, 2, and 4.
Measured: Up to approximately 49 months
Arm 3: DOR per Lugano Response Criteria as assessed by Investigator
For participants who demonstrate a confirmed complete response (CR) or partial response (PR), DOR is defined as the time from CR or PR to documented disease progression or death. Participants are assessed using computed tomography (CT) and positron emission tomography (PET)-CT and response will be evaluated based on the Lugano Classification (Cheson et al, Journal of Clinical Oncology, 2014). CR is complete metabolic (no/minimal fluorodeoxyglucose [FDG] uptake) and radiologic response (target lesions regress to ≤1.5 cm in longest transverse diameter of a lesion) and no new lesions. PR is partial metabolic (moderate/high FDG uptake) and radiologic response (≥50% decrease in sum of product diameters (SPD) for multiple lesions of up to 6 target measurable nodes and extranodal sites, no increase in lesions, and spleen regressed by >50% in length beyond normal). DOR as assessed by the Investigator will be presented for Arm 3.
Measured: Up to approximately 49 months
Area Under the Concentration-time Curve Measured at Steady State (AUCss) of MK-1045
Blood samples will be collected to determine the AUCss of MK-1045 in plasma.
Measured: Pre-dose and at designated time points post-dose up to 12 months
Trough Concentration (Ctrough) of MK-1045
Blood samples will be collected to determine the Ctrough of MK-1045 in plasma.
Measured: Pre-dose and at designated time points post-dose up to 12 months
Maximum Serum Concentration (Cmax) of MK-1045
Blood samples will be collected to determine the Cmax of MK-1045 in plasma.
Measured: Pre-dose and at designated time points post-dose up to 12 months
Arms 1, 2, and 4: Time to Maximum Serum Concentration (Tmax) of MK-1045
Blood samples will be collected to determine the Tmax of MK-1045 in plasma.
Measured: Pre-dose and at designated time points post-dose up to 12 months
Arm 3: Absolute Bioavailability Expressed as a Percentage (F%) of MK-1045
Blood samples will be collected to determine the F% of MK-1045 in plasma.
Measured: Pre-dose and at designated time points post-dose up to 12 months
Arm 3: ORR per Lugano Response Criteria as assessed by Investigator
ORR is defined as the percentage of the participants who had complete response (CR) or partial response (PR) and will be evaluated using computed tomography (CT) and positron emission tomography (PET)-CT. Response will be assessed based on the International Working Group Criteria: Lugano Classification (Cheson et al, Journal of Clinical Oncology, 2014). CR is complete metabolic (no/minimal fluorodeoxyglucose [FDG] uptake) and radiologic response (target lesions regress to ≤1.5 cm in longest transverse diameter of a lesion) and no new lesions. PR is partial metabolic (moderate/high FDG uptake) and radiologic response (≥50% decrease in sum of product diameters for multiple lesions of up to 6 target measurable nodes and extranodal sites, no increase in lesions, and spleen regressed by >50% in length beyond normal). In Arm 3, the percentage of participants who experience CR or PR as assessed by the Investigator will be presented.
Measured: Up to approximately 49 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Apr 2026
- Study start3 May 2026
- Primary completion1 Jul 2030 (estimated)
- Study completion1 Apr 2031 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Lymphoma, Non-HodgkinStudies of the same condition, open and under way.
- More trials run by Merck Sharp & Dohme LLCThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1/2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 280 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Merck Sharp & Dohme LLC
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Medical Director, Study director, Merck Sharp & Dohme LLC
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07519772
- Sponsor's protocol ID
- 1045-008
- Other IDs
- U1111-1324-8720, 2025-523005-15-00, MK-1045-008, 2025
- Acronym
- WaveSpan-008
- Status last verified
- Oct 2026
- First submitted
- 3 Apr 2026
- Last updated
- 29 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf
Study at a glance
From the registry record, last updated by the sponsor on 29 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 1b/2 Study to Evaluate the Safety and Efficacy of MK-1045 Monotherapy or in Combination With Other Anticancer Agents in Participants With Non-Hodgkin Lymphoma
- ClinicalTrials.gov ID
- NCT07519772
- Acronym / sponsor ID
- WaveSpan-008 / 1045-008
- Phase
- Phase 1/2
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 280 participants (estimated)
- Lead sponsor
- Merck Sharp & Dohme LLCIndustry (pharma, biotech, devices)
- Study start
- 3 May 2026 (actual)
- Primary completion
- 1 Jul 2030 (estimated)
- Study completion
- 1 Apr 2031 (estimated)
- First posted
- 9 Apr 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Researchers are looking for new ways to treat 2 types of non-Hodgkin lymphoma (NHL) called follicular lymphoma (FL) and diffuse large B-cell lymphoma (DLBCL). FL is a slow-growing type of NHL. DLBCL is a fast-growing type of NHL. NHL is a cancer in the lymphatic system that causes swollen lymph nodes. The lymphatic system is part of the immune system.
In this study, researchers want to learn if MK-1045 can treat FL and DLBCL. MK-1045 is a study treatment that is an immunotherapy, which helps the immune system fight cancer.
The goals of this study are to learn how safe MK-1045 is and if people tolerate it. Researchers also want to see if FL and DLBCL respond (the cancer gets smaller or goes away) to treatment.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Arm 1: Follicular Lymphoma (FL) MK-1045 Monotherapy Dose Optimization | Experimental | Biological: MK-1045Participants will receive Dosage A of MK-1045 by Intravenous (IV) infusion for up to approximately 1 year of treatment or until discontinuation. |
| Arm 2: FL MK-1045 Longer Dosing Interval | Experimental | Biological: MK-1045Participants will receive Dosage B of MK-1045 by Intravenous (IV) infusion for up to approximately 1 year of treatment or until discontinuation. |
| Arm 3: FL MK-1045 Subcutaneous Administration | Experimental | Biological: MK-1045Participants will receive Dosage C of MK-1045 by subcutaneous (SC) injection for up to approximately 1 year of treatment or until discontinuation. |
| Arm 4: Diffuse Large B-cell Lymphoma (DLBCL) MK-1045 Monotherapy Dose Optimization | Experimental | Biological: MK-1045Participants will receive Dosage D of MK-1045 by Intravenous (IV) infusion for up to approximately 1 year of treatment or until discontinuation. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (10 listed)
- Has disease that has relapsed (disease progression after remission) or is refractory (failure to achieve complete or partial response) to at least 2 prior systemic lines of therapy.
- Has a histologically confirmed diagnosis of follicular lymphoma (FL) or diffuse large B-cell lymphoma (DLBCL).
- DLBCL participants only: has progressed after or is ineligible for transplant and chimeric antigen receptor T (cell) (CAR-T) therapy.
- Has provided tumor tissue sample (archival or newly obtained, if performed per standard of care).
- Has documented retained expression of cluster of differentiation 19 (CD19) in tumor tissue obtained by biopsy after disease progression on CD19-targeting therapy, if experienced disease progression after prior CD19-targeting therapy.
Key exclusion criteria (15 listed)
- Has received a solid organ transplant.
- Had or has clinically relevant central nervous system (CNS) diseases.
- Has a history of serious cardiovascular or cerebrovascular diseases.
- Had prior allogenic stem cell transplantation with acute graft-versus-host-disease (GVHD); has ongoing evidence of chronic GVHD manifesting as skin involvement, diarrhea, or increased serum bilirubin; or requires systemic immunosuppression for GVHD.
- Is HIV-infected with a history of Kaposi's sarcoma and/or Multicentric Castleman's Disease.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| MK-1045Also: CN-201Intravenous (IV) Infusion or Subcutaneous (SC) injection | Biological | Arm 1: Follicular Lymphoma (FL) MK-1045 Monotherapy Dose Optimization, Arm 2: FL MK-1045 Longer Dosing Interval, Arm 3: FL MK-1045 Subcutaneous Administration, Arm 4: Diffuse Large B-cell Lymphoma (DLBCL) MK-1045 Monotherapy Dose Optimization |
Primary outcome
Number of Participants Who Experience an Adverse Event (AE)
Time frame: Up to approximately 49 months
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The number of participants who experience an AE will be reported.
Number of Participants Who Discontinue Study Treatment Due to an AE
Time frame: Up to approximately 12 months
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. The number of participants who discontinue study treatment due to an AE will be reported.
Arms 2 and 3: Number of Participants Who Experience Dose Limiting Toxicity (DLT)
Time frame: Up to approximately 28 days
DLT will be defined as any drug-related AE observed during the DLT evaluation period (up to 28 days) that results in a change to a given dose or a delay in initiating the next treatment.
Arms 1, 2, and 4: Objective Response Rate (ORR) per Lugano Response Criteria as assessed by Blinded Independent Central review (BICR)
Time frame: Up to approximately 49 months
ORR is defined as the percentage of the participants who had complete response (CR) or partial response (PR) and will be evaluated using computed tomography (CT) and positron emission tomography (PET)-CT. Response will be assessed based on the International Working Group Criteria: Lugano Classification (Cheson et al, Journal of Clinical Oncology, 2014). CR is complete metabolic (no/minimal fluorodeoxyglucose [FDG] uptake) and radiologic response (target lesions regress to ≤1.5 cm in longest transverse diameter of a lesion) and no new lesions. PR is partial metabolic (moderate/high FDG uptake) and radiologic response (≥50% decrease in sum of product diameters for multiple lesions of up to 6 target measurable nodes and extranodal sites, no increase in lesions, and spleen regressed by >50% in length beyond normal). In Arms 1, 2, and 4, the percentage of participants who experience CR or PR as assessed by BICR will be presented.
8 secondary outcomes
Arms 1, 2, and 4: Duration of Response (DOR) per Lugano Response Criteria as assessed by BICR
Time frame: Up to approximately 49 months
Arm 3: DOR per Lugano Response Criteria as assessed by Investigator
Time frame: Up to approximately 49 months
Area Under the Concentration-time Curve Measured at Steady State (AUCss) of MK-1045
Time frame: Pre-dose and at designated time points post-dose up to 12 months
Trough Concentration (Ctrough) of MK-1045
Time frame: Pre-dose and at designated time points post-dose up to 12 months
Maximum Serum Concentration (Cmax) of MK-1045
Time frame: Pre-dose and at designated time points post-dose up to 12 months
Arms 1, 2, and 4: Time to Maximum Serum Concentration (Tmax) of MK-1045
Time frame: Pre-dose and at designated time points post-dose up to 12 months
Arm 3: Absolute Bioavailability Expressed as a Percentage (F%) of MK-1045
Time frame: Pre-dose and at designated time points post-dose up to 12 months
Arm 3: ORR per Lugano Response Criteria as assessed by Investigator
Time frame: Up to approximately 49 months
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Oct 2026.
- Merck Clinical Trials InformationLink provided by the sponsor.
- Plain Language SummaryLink provided by the sponsor.
- Individual participant dataSharing planned: Yes. https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Medical Director study director
Merck Sharp & Dohme LLC
52 sites in 16 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1/2 study testing MK-1045 in people with Lymphoma, Non-Hodgkin and Lymphoma, Follicular, run by Merck Sharp & Dohme LLC at 52 sites in 16 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 10 inclusion and 15 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 29 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 52 sites in China, Israel, Spain, Turkey (Türkiye), United States and 11 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this combined phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Toll Free Number (1-888-577-8839, Trialsites@msd.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Number of Participants Who Experience an Adverse Event (AE) (time frame: Up to approximately 49 months). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Oct 2026; AzTrials last refreshed its copy on 7 Nov 2026.