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Non-small Cell Lung CancerPhase 1TroFuse-008NCT06049212

Sacituzumab Tirumotecan (MK-2870) as Monotherapy and in Combination With Pembrolizumab in Participants With Advanced Solid Tumors (MK-2870-008)

A Phase 1 study testing Sacituzumab tirumotecan, Pembrolizumab and Supportive care measures in people with Non-small Cell Lung Cancer and Solid Tumors, run by Merck Sharp & Dohme LLC at 7 sites in Japan.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

This is a phase 1 trial of the safety, tolerability, and pharmacokinetics (PK) of sacituzumab tirumotecan monotherapy, and of sacituzumab tirumotecan in combination with pembrolizumab (MK-3475) or pembrolizumab + carboplatin, in Japanese participants with advanced solid tumors or treatment-naïve advanced or metastatic… Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Sacituzumab tirumotecan, Pembrolizumab and Supportive care measures
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
7 sitesJapan
Study dates
26 Oct 2023to 29 Jan 2028
Phase
Phase 1
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

  • Arm 1: Histologically or cytologically confirmed advanced/metastatic solid tumor by pathology report and have received, or been intolerant to, all treatment known to confer clinical benefit.
  • Arm 2: Have a histologically or cytologically confirmed diagnosis of advanced or metastatic NSCLC (Stage IIIB or IIIC disease and not candidates for surgical resection or definitive chemoradiation, or Stage IV NSCLC, AJCC Staging Manual, version 8).
  • Arm 2: Confirmation that EGFR-, ALK-, or ROS1-directed therapy is not indicated as primary therapy
  • Arm 2: Has tumor tissue that demonstrates PD-L1 TPS ≥ 50% as determined by PD-L1 IHC 22C3 pharmDx assay by local laboratory
  • If capable of producing sperm, the participant agrees to the following during the intervention period and for at least the time needed to eliminate each study intervention after the last dose of study intervention (100 days for sacituzumab tirumotecan and 90 days for carboplatin [no restriction for pembrolizumab]) AND agrees to refrain from donating sperm AND is either abstinent and agrees to remain abstinent or uses highly effective contraception
  • For females (assigned at birth), is not pregnant or breastfeeding and ≥1 of the following applies: is not a participant of childbearing potential (POCBP) OR is a POCBP and uses highly effective contraception
Show all 11Show fewer
  • Arm 1: Participants who have AEs due to previous anticancer therapies must have recovered to ≤Grade 1 or baseline
  • Measurable disease by RECIST 1.1 as assessed by the local site investigator/radiology
  • Archival tumor tissue sample or newly obtained core or incisional biopsy of a tumor lesion not previously irradiated has been provided
  • Have a life expectancy of at least 3 months
  • Have an ECOG performance status of 0 or 1 within 3 days before the start of study intervention

Who cannot join

  • Has symptomatic ascites or pleural effusion. A participant who is clinically stable following treatment for these conditions (including therapeutic thoraco- or paracentesis) is eligible
  • Has Grade ≥2 peripheral neuropathy
  • Has history of documented severe dry eye syndrome, severe Meibomian gland disease and/or blepharitis, or severe corneal disease that prevents/delays corneal healing
  • Has active inflammatory bowel disease requiring immunosuppressive medication or previous history of inflammatory bowel disease
  • Has uncontrolled, significant cardiovascular disease or cerebrovascular disease including New York Heart Association Class III or IV congestive heart failure, unstable angina, myocardial infarction, uncontrolled symptomatic arrhythmia, prolongation of QTcF interval to >480 ms, and/or other serious cardiovascular and cerebrovascular diseases within the 6 months preceding study intervention
  • Received prior treatment with a TROP2-targeted ADC
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  • Received prior treatment with a topoisomerase I-containing ADC
  • Arm 1: Has received any prior immunotherapy and was discontinued from that treatment due to a Grade 3 or higher irAE (except endocrine disorders that can be treated with replacement therapy) or was discontinued from that treatment due to Grade 2 myocarditis or recurrent Grade 2 pneumonitis
  • Arm 2: Received prior therapy with an anti-PD-1, anti-PD-L1, or anti-PD-L2 agent or with an agent directed to another stimulatory or coinhibitory T-cell receptor (eg, CTLA-4, OX-40, CD137)
  • Arm 2: Has received prior systemic chemotherapy or other targeted or biological antineoplastic therapy for their advanced or metastatic NSCLC
  • Arm 2: Has received radiation therapy to the lung that is >30 Gy within 6 months of the first dose of study intervention
  • Received prior systemic anticancer therapy including investigational agents within 4 weeks before allocation
  • Received prior radiotherapy within 2 weeks of start of study intervention, or radiation-related toxicities, requiring corticosteroids
  • Received a live or live-attenuated vaccine within 30 days before the first dose of study intervention
  • Requires treatment with a strong inhibitor or inducer of CYP3A4 at least 14 days before the first dose of study intervention and throughout the study
  • Has received an investigational agent or has used an investigational device within 4 weeks prior to study intervention administration
  • Arm 2: Diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy (in dosing exceeding 10 mg daily of prednisone equivalent) or any other form of immunosuppressive therapy within 7 days prior the first dose of study medication
  • Arm 2: Active autoimmune disease that has required systemic treatment in the past 2 years except replacement therapy (eg, thyroxine, insulin, or physiologic corticosteroid)
  • Known additional malignancy that is progressing or has required active treatment within the past 3 years
  • Known active CNS metastases and/or carcinomatous meningitis
  • History of (noninfectious) pneumonitis/interstitial lung disease that required steroids or has current pneumonitis/interstitial lung disease
  • Active infection requiring systemic therapy
  • History of HIV infection
  • Concurrent active Hepatitis B (defined as HBsAg positive and/or detectable HBV DNA) and Hepatitis C virus (defined as anti-HCV Ab positive and detectable HCV RNA) infection
  • History or current evidence of any condition, therapy, laboratory abnormality, or other circumstance that might confound the results of the study or interfere with the participant's participation for the full duration of the study, such that it is not in the best interest of the participant to participate, in the opinion of the treating investigator
  • Known psychiatric or substance abuse disorder
  • A severe hypersensitivity reaction to treatment a monoclonal antibody/component of the study intervention

Trial locations and contacts

7 sites in 1 country.

7 sites in 1 country

Japan7 sites
  • National Cancer Center Hospital ( Site 0001)

    Chuo-ku, Tokyo, 104-0045

  • Kansai Medical University Hospital ( Site 0007)

    Hirakata, Osaka, 573-1191

  • National Cancer Center Hospital East ( Site 0002)

    Kashiwa, Chiba, 277-8577

  • National Hospital Organization Shikoku Cancer Center ( Site 0008)

    Matsuyama, Ehime, 791-0280

  • Shizuoka Cancer Center ( Site 0005)

    Nagaizumi-cho,Sunto-gun, Shizuoka, 411-8777

  • Aichi Cancer Center ( Site 0006)

    Nagoya, Aichi-ken, 464-8681

  • Kanagawa Cancer Center ( Site 0004)

    Yokohama, Kanagawa, 241-8515

Other trials in Japan

About this study

Official title: Phase 1 Trial of MK-2870 as Monotherapy and in Combination With Pembrolizumab ± Chemotherapy in Subjects With Advanced Solid Tumors

This is a phase 1 trial of the safety, tolerability, and pharmacokinetics (PK) of sacituzumab tirumotecan monotherapy, and of sacituzumab tirumotecan in combination with pembrolizumab (MK-3475) or pembrolizumab + carboplatin, in Japanese participants with advanced solid tumors or treatment-naïve advanced or metastatic non-small cell lung cancer (NSCLC).

Per protocol amendment 04, Arm 3: Pembrolizumab/Carboplatin + sacituzumab tirumotecan Combination Therapy was discontinued, and subsequently all Arm 3 procedures, recruitment, and descriptions were removed.

Being tested
Sacituzumab tirumotecan, Pembrolizumab, Supportive care measures
Medical subject headings
Carcinoma, Non-Small-Cell Lung, Parkinson Disease 4, Autosomal Dominant Lewy Body

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Sacituzumab tirumotecanBiological

    Also called SKB264, MK-2870

    Sacituzumab tirumotecan injection powder for intravenous (IV) infusion.

  • PembrolizumabBiological

    Also called MK-3475

    Pembrolizumab solution for IV infusion.

  • Supportive care measuresDrug

    Participants are allowed to take supportive care measures at the discretion of the investigator. Prophylactic supportive care measures may include but are not limited to antiemetic agents, antidiarrheal agents, granulocyte and erythroid growth factors, and blood transfusions

Study groups in NCT06049212
Study groupRoleWhat they receive
Arm 1: Sacituzumab tirumotecan MonotherapyExperimentalParticipants receive single doses of sacituzumab tirumotecan monotherapy once every 2 weeks (Q2W).
Receives: Biological: Sacituzumab tirumotecan; Drug: Supportive care measures
Arm 2: Pembrolizumab + Sacituzumab tirumotecan Combination TherapyExperimentalParticipants receive sacituzumab tirumotecan Q2W in combination with pembrolizumab once every 6 weeks (Q6W).
Receives: Biological: Sacituzumab tirumotecan; Biological: Pembrolizumab; Drug: Supportive care measures

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants Experiencing Dose-Limiting Toxicity (DLT)

    A DLT is defined as any of the following: Grade 4 nonhematologic toxicity; Grade 4 hematologic toxicity lasting ≥7 days, except thrombocytopenia or lymphopenia; any nonhematologic AE ≥Grade 3 in severity (with some exceptions); any Grade 3 or Grade 4 nonhematologic laboratory value (if certain criteria are met); febrile neutropenia Grade 3 or Grade 4; a prolonged delay (>2 weeks) in initiating sacituzumab tirumotecan second dose due to intervention-related toxicity; any intervention-related toxicity that causes the participant to discontinue intervention during DLT evaluation period; or any Grade 5 toxicity. All toxicities will be graded using National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) v5.0.

    Measured: Up to 21 days after each dose

  2. Number of Participants Experiencing ≥1 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.

    Measured: Up to ~32 months

  3. Number of Participants Discontinuing from Study Therapy due to 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.

    Measured: Up to ~32 months

Secondary outcomes (28)
  1. Area Under the Plasma Concentration-Time Curve (AUC) of sacituzumab tirumotecan -Antibody-Drug Conjugate (sacituzumab tirumotecan ADC)

    The AUC of sacituzumab tirumotecan -ADC will be determined in participants from Arm 1.

    Measured: Day 1: Preinfusion and 0.5, 2, 4, 8, 24, 48, and 72 hours postinfusion

  2. Maximum Plasma Concentration (Cmax) of sacituzumab tirumotecan-ADC

    The Cmax of sacituzumab tirumotecan-ADC will be determined in participants from Arm 1.

    Measured: Day 1: Preinfusion and 0.5, 2, 4, 8, 24, 48, and 72 hours postinfusion

  3. Minimum Plasma Concentration (Cmin) of sacituzumab tirumotecan-ADC

    The Cmin of sacituzumab tirumotecan-ADC will be determined in participants from Arm 1.

    Measured: Day 1: Preinfusion and 0.5, 2, 4, 8, 24, 48, and 72 hours postinfusion

  4. Apparent terminal half-life (t½) of sacituzumab tirumotecan-ADC

    The t½ of sacituzumab tirumotecan-ADC will be determined in participants from Arm 1.

    Measured: Day 1: Preinfusion and 0.5, 2, 4, 8, 24, 48, and 72 hours postinfusion

  5. Time to Maximum Plasma Concentration (Tmax) of sacituzumab tirumotecan-ADC

    The Tmax of sacituzumab tirumotecan-ADC will be determined in participants from Arm 1.

    Measured: Day 1: Preinfusion and 0.5, 2, 4, 8, 24, 48, and 72 hours postinfusion

  6. Clearance (CL) of sacituzumab tirumotecan-ADC

    The CL of sacituzumab tirumotecan-ADC will be determined in participants from Arm 1.

    Measured: Day 1: Preinfusion and 0.5, 2, 4, 8, 24, 48, and 72 hours postinfusion

  7. Volume of Distribution (Vz) of sacituzumab tirumotecan-ADC

    The Vz of sacituzumab tirumotecan-ADC will be determined in participants from Arm 1.

    Measured: Day 1: Preinfusion and 0.5, 2, 4, 8, 24, 48, and 72 hours postinfusion

  8. Accumulation Ratio (Rac) of sacituzumab tirumotecan-ADC

    The Rac of sacituzumab tirumotecan-ADC will be determined in participants from Arm 1.

    Measured: Day 1: Preinfusion and 0.5, 2, 4, 8, 24, 48, and 72 hours postinfusion

  9. Area Under the Plasma AUC of sacituzumab tirumotecan-Total Antibody (sacituzumab tirumotecan-TAB)

    The AUC of sacituzumab tirumotecan-TAB will be determined in participants from Arm 1.

    Measured: Day 1: Preinfusion and 0.5, 2, 4, 8, 24, 48, and 72 hours postinfusion

  10. Cmax of sacituzumab tirumotecan-TAB

    The Cmax of sacituzumab tirumotecan-TAB will be determined in participants from Arm 1.

    Measured: Day 1: Preinfusion and 0.5, 2, 4, 8, 24, 48, and 72 hours postinfusion

  11. Cmin of sacituzumab tirumotecan-TAB

    The Cmin of sacituzumab tirumotecan-TAB will be determined in participants from Arm 1.

    Measured: Day 1: Preinfusion and 0.5, 2, 4, 8, 24, 48, and 72 hours postinfusion

  12. t½ of sacituzumab tirumotecan-TAB

    The t½ of sacituzumab tirumotecan-TAB will be determined in participants from Arm 1.

    Measured: Day 1: Preinfusion and 0.5, 2, 4, 8, 24, 48, and 72 hours postinfusion

  13. Tmax of sacituzumab tirumotecan-TAB

    The Tmax of sacituzumab tirumotecan-TAB will be determined in participants from Arm 1.

    Measured: Day 1: Preinfusion and 0.5, 2, 4, 8, 24, 48, and 72 hours postinfusion

  14. CL of sacituzumab tirumotecan-TAB

    The CL of sacituzumab tirumotecan-TAB will be determined in participants from Arm 1.

    Measured: Day 1: Preinfusion and 0.5, 2, 4, 8, 24, 48, and 72 hours postinfusion

  15. Vz of sacituzumab tirumotecan-TAB

    The Vz of sacituzumab tirumotecan-TAB will be determined in participants from Arm 1.

    Measured: Day 1: Preinfusion and 0.5, 2, 4, 8, 24, 48, and 72 hours postinfusion

  16. Rac of sacituzumab tirumotecan-TAB

    The Rac of sacituzumab tirumotecan-TAB will be determined in participants from Arm 1.

    Measured: Day 1: Preinfusion and 0.5, 2, 4, 8, 24, 48, and 72 hours postinfusion

  17. Cmax of sacituzumab tirumotecan-ADC Coadministered with Pembrolizumab

    The Cmax of sacituzumab tirumotecan-ADC when coadministered with pembrolizumab will be determined in participants from Arm 2.

    Measured: Cycle 1 and 2: Days 1 and 29 preinfusion and 0.5 hours postinfusion (each cycle is 29 days)

  18. Cmin of sacituzumab tirumotecan-ADC Coadministered with Pembrolizumab

    The Cmin of sacituzumab tirumotecan-ADC when coadministered with pembrolizumab will be determined in participants from Arm 2.

    Measured: Cycle 1 and 2: Days 1 and 29 preinfusion and 0.5 hours postinfusion (each cycle is 29 days)

  19. Rac of sacituzumab tirumotecan-ADC Coadministered with Pembrolizumab

    The Rac of sacituzumab tirumotecan-ADC when coadministered with pembrolizumab will be determined in participants from Arm 2.

    Measured: Cycle 1 and 2: Days 1 and 29 preinfusion and 0.5 hours postinfusion (each cycle is 29 days)

  20. Cmax of sacituzumab tirumotecan-TAB Coadministered with Pembrolizumab

    The Cmax of sacituzumab tirumotecan-TAB when coadministered with pembrolizumab will be determined in participants from Arm 2.

    Measured: Cycle 1 and 2: Days 1 and 29 preinfusion and 0.5 hours postinfusion (each cycle is 29 days)

  21. Cmin of sacituzumab tirumotecan-TAB Coadministered with Pembrolizumab

    The Cmin of sacituzumab tirumotecan-TAB when coadministered with pembrolizumab will be determined in participants from Arm 2.

    Measured: Cycle 1 and 2: Days 1 and 29 preinfusion and 0.5 hours postinfusion (each cycle is 29 days)

  22. Rac of sacituzumab tirumotecan-TAB Coadministered with Pembrolizumab

    The Rac of sacituzumab tirumotecan-TAB when coadministered with pembrolizumab will be determined in participants from Arm 2.

    Measured: Cycle 1 and 2: Days 1 and 29 preinfusion and 0.5 hours postinfusion (each cycle is 29 days)

  23. Cmax of KL610023 Coadministered with Pembrolizumab

    The Cmax of KL610023 (free payload) when sacituzumab tirumotecan is coadministered with pembrolizumab will be determined in participants from Arm 2.

    Measured: Cycle 1 and 2: Days 1 and 29 preinfusion and 0.5 hours postinfusion (each cycle is 29 days)

  24. Rac of KL610023 Coadministered with Pembrolizumab

    The Rac of KL610023 (free payload) when sacituzumab tirumotecan is coadministered with pembrolizumab will be determined in participants from Arm 2.

    Measured: Cycle 1 and 2: Days 1 and 29 preinfusion and 0.5 hours postinfusion (each cycle is 29 days)

  25. Objective Response Rate (ORR)

    ORR is defined as the percentage of participants with Complete Response (CR: disappearance of all target lesions) or Partial Response (PR: at least a 30% decrease in the sum of diameters of target lesions) per Response Evaluation Criteria In Solid Tumors Version 1.1 (RECIST1.1). The percentage of participants who experience CR or PR as assessed by Blinded Independent Central Review (BICR) will be presented.

    Measured: Up to ~39 months

  26. Duration of Response (DOR)

    DOR is defined as the time from first documented evidence of CR or PR until disease progression or death due to any cause.

    Measured: Up to ~39 months

  27. Incidence of Antidrug Antibodies (ADA) to sacituzumab tirumotecan

    The incidence of ADA will be determined in participants from Arm 1 and Arm 2.

    Measured: Up to ~32 months

  28. Incidence of Antidrug Antibodies (ADA) to pembrolizumab

    The incidence of ADA will be determined in participants from Arm 2.

    Measured: Up to ~32 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Sep 2023
  2. Study start26 Oct 2023
  3. Primary completion31 Dec 2027 (estimated)
  4. Study completion29 Jan 2028 (estimated)

Resources

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
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06049212
Sponsor's protocol ID
2870-008
Other IDs
jRCT2031230356
Acronym
TroFuse-008
Status last verified
Aug 2026
First submitted
15 Sep 2023
Last updated
2 Sep 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Sacituzumab tirumotecan, Pembrolizumab and Supportive care measures in people with Non-small Cell Lung Cancer and Solid Tumors, run by Merck Sharp & Dohme LLC at 7 sites in Japan.

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 11 inclusion and 27 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: under way, not looking for participants, as of the sponsor's last update on 2 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in Japan. 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 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.

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?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants Experiencing Dose-Limiting Toxicity (DLT) (time frame: Up to 21 days after each dose). The study lists 3 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 2 Sep 2026.

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