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Tuvusertib (M1774) in Combination With Cemiplimab in Participants With Non-Squamous NSCLC (DDRiver NSCLC 322)

An Open Label, Multicenter, Phase 1b/2a Study to Evaluate Efficacy, Safety, Tolerability, and Pharmacokinetics of the ATR Inhibitor M1774 in Combination With Cemiplimab in Participants With Non-Squamous Non-Small Cell Lung Cancer That Has Progressed on Prior Anti-PD-(L)1 and Platinum-based Therapies (DDRiver NSCLC 322)

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05882734
Enrollment
61
Registered
2023-05-31
Start date
2023-09-13
Completion date
2026-03-30
Last updated
2026-02-17

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

Conditions

Non-Small Cell Lung Cancer

Keywords

Ataxia telangiectasia mutated and Rad3-related protein kinase (ATR) inhibitor, Tuvusertib (M1774), Non squamous Non small cell lung cancer, Cemiplimab

Brief summary

This is an Open-label, multicenter clinical study conducted in two Phases to establish the efficacy, safety, tolerability, and pharmacokinetics of the ataxia telangiectasia mutated and Rad3-related protein kinase (ATR) inhibitor Tuvusertib in Combination with Cemiplimab in Participants with Non-Squamous Non-Small Cell Lung Cancer (nsqNSCLC) that has Progressed on Prior Anti-PD-(L)1 and Platinum-based Therapies..

Interventions

DRUGM1774

In Phase 1b, M1774 will be administered as dosing regimen 1 or dosing regimen 2 until disease progression, death discontinuation criteria or any other reason. The selected dosing regimen of M1774 will be administered in all arms of Phase 2a.

DRUGCemiplimab

Cemiplimab will be administered as an intravenous infusion every 3 weeks in all arms of Phase 1b and Phase 2a until disease progression, death discontinuation criteria or any other reason.

Sponsors

EMD Serono Research & Development Institute, Inc.
Lead SponsorINDUSTRY
Merck KGaA, Darmstadt, Germany
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Participants who are diagnosed with nsqNSCLC histologically or cytologically confirmed * Participants with Radiologically confirmed/documented disease progression during or after the following systemic therapies (all required): * At most, 1 line of anti-PD-(L)1 therapy for locally advanced or metastatic disease. Rechallenge with the same anti-PD-(L)1 for disease considered sensitive to anti-PD-(L)1 therapy (e.g. after a treatment break) is considered 1 line * Platinum-based therapy for locally advanced or metastatic disease, given in combination or sequentially with anti-PD-(L)1 therapy. Participants who received adjuvant platinum-based therapy meet this criterion if disease progression occurred within 6 months from the last dose that the participant received that therapy. No additional cytotoxic therapies after progression on platinum-based therapy are allowed * Prior best overall response of stable disease or better with anti-PD-(L)1 therapy * Disease progression must have occurred while the participant has been receiving anti-PD-(L)1 therapy or within 16 weeks of the last dose of anti-PD-(L)1 therapy * Participants with Measurable disease per RECIST v1.1 * Participants with Eastern Cooperative Oncology Group (ECOG) PS 0 or 1 * Adequate hematological, hepatic, and renal function as defined in the protocol. * Phase 2a part only: central liquid biopsy analysis of tumor molecular alterations with an assay with appropriate regulatory status * Other protocol defined inclusion criteria could apply

Exclusion criteria

* Participants with tumors harboring actionable epidermal growth factor receptor (EGFR) or anaplastic lymphoma kinase (ALK) genomic aberrations. Participants with tumors with other actionable aberrations are eligible and allowed to have received up to 1 line of available targeted therapy * Participants with history of additional malignancy within 3 years before the date of enrollment. Exceptions are squamous and basal cell carcinomas of the skin and carcinoma in situ of the cervix, or malignancy that in the opinion of the Investigator, with concurrence of the Sponsor's Medical Monitor, is considered cured with minimal risk of recurrence within 3 years * Participants with known brain metastases, unless clinically stable * Participant with history of (noninfectious) pneumonitis that required systemic corticosteroids or current pneumonitis/interstitial lung disease * Other protocol defined

Design outcomes

Primary

MeasureTime frame
Phase 1b/Phase 2a: Confirmed Overall response (OR) According to Response Evaluation Criteria in Solid Tumor (RECIST) 1.1 As assessed by InvestigatorTime from randomization to final assessment or until progression disease, death, discontinuation criteria approximately up to 3 years and 2 months
Phase 1b: Number of Participants With Adverse Events (AEs) and Treatment-related AEsTime from randomization to final assessment at end of safety follow-up visit approximately up to 3 years and 2 months

Secondary

MeasureTime frame
Phase 1b/Phase 2a: Duration of Response (DoR) According to RECIST 1.1 as Assessed by the InvestigatorTime from randomization to final assessment or until progression disease, death, discontinuation criteria approximately up to 3 years and 2 months
Phase 1b/Phase 2a: Progression Free Survival (PFS) According to RECIST 1.1 as Assessed by the InvestigatorTime from randomization to final assessment or until progression disease, death, discontinuation criteria approximately up to 3 years and 2 months
Phase 1b/Phase 2a: Overall survival (OS)Time from randomization to final assessment or until progression disease, death, discontinuation criteria approximately up to 3 years and 2 months
Phase 2a: Number of Participants With AEs and Treatment-related AEsTime from randomization to final assessment at end of safety follow-up visit (approximately up to 3 years and 2 months)

Countries

Belgium, France, Germany, Italy, Japan, South Korea, Spain, United States

Contacts

STUDY_DIRECTORMedical Responsible

Merck Healthcare KGaA, Darmstadt, Germany, an affiliate of Merck KGaA, Darmstadt, Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 18, 2026