Clinical trial NCT06509906: M9466 in Combination With Topoisomerase 1 Inhibitors-based Regimens in Advanced Solid Tumors and Colorectal Cancer (DDRiver 511)
Official title: An Open Label, Multicenter, Phase 1 Study to Evaluate the Safety, Tolerability, and Pharmacokinetic/Pharmacodynamic Profile of the PARP1 Inhibitor M9466 in Combination With Topoisomerase 1 Inhibitor-based Regimens in Advanced Solid Tumors and Colorectal Cancer (DDRiver 511)
Study type: INTERVENTIONAL
Overall status: SUSPENDED
Phase: PHASE1
Conditions: Advanced Solid Tumor
Keywords: PARP inhibitor
DNA repair inhibitor
Irinotecan
FOLFIRI
Lead sponsor: EMD Serono
Sponsor class: INDUSTRY
Collaborators: name: Merck KGaA, Darmstadt, Germany
First posted: 2024-07-19
Enrollment: 54
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NON_RANDOMIZED
Intervention model: SEQUENTIAL
Primary purpose: TREATMENT

Brief summary: The purpose of this study is to evaluate the safety and preliminary clinical activity of M9466 in combination with topoisomerase 1 inhibitors-based regimens. As such the combination with FOLFIRI (folinic acid, fluorouracil, irinotecan) and Bevacizumab will be evaluated in participants with colorectal cancer, to establish the M9466 maximum tolerated dose if observed and the recommended dose for expansion.

Study Duration: After a Screening period of up to 28 days, enrolled participants will remain in the study until they have completed all the study visits or until they withdraw consent, are lost to follow-up, or die.

Visit Frequency: The participants will come for a Screening Visit and 1 to 2 visits per treatment cycle. After end of study intervention period, the participants will come for an End of Treatment Visit and a Safety Follow-up Visit.


Eligibility criteria: Inclusion Criteria:

* M9466 + Irinotecan Run-in Cohort: Participants with locally advanced or metastatic disease that is refractory to standard therapy or for which no standard therapy is judged appropriate by the Investigator (that is \[i.e.\] participants who have exhausted all standard of care (SoC) options according to International Guidelines), and who may derive clinical benefit from the combination treatment with M9466 and irinotecan
* M9466 + FOLFIRI + Bevacizumab Dose Finding Cohorts: Participants with documented histopathological diagnosis of locally advanced or metastatic colorectal cancer (CRC), who were intolerant/refractory to or progressed after standard systemic therapies for the advanced/metastatic stage that included: Oxaliplatin and a fluoropyrimidine (administration in the adjuvant setting fulfills this criterion if progression occurred within 12 months of the last dose). Prior use of irinotecan is permitted; Either an anti- epidermal growth factor receptor (anti-EGFR) or an anti- Vascular endothelial growth factor (anti-VEGF) agent (not applicable if oxaliplatin was administered in the adjuvant setting); An immune checkpoint inhibitor for participants with known MSI-H status; Cetuximab and encorafenib ± binimetinib, if locally available, for participants with BRAF V600E mutations. Participants may have received maximally 1 previous regimen for the treatment of metastatic disease (with the exception of participants with MSI-H disease or BRAF positive disease who are allowed to have had up to 2 previous lines of treatment)
* Eastern Cooperative Oncology Group performance status (ECOG PS) less than or equal to (\<=) 1
* Other protocol defined inclusion criteria could apply

Exclusion Criteria:

* Persistence of AEs related to any prior treatments that have not recovered to Grade \<= 1 by National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0 (NCI-CTCAE v5.0) unless AEs are clinically nonsignificant and/or stable on supportive therapy in the opinion of the Investigator (for example \[e.g.\] neuropathy or alopecia)
* Participant has a history of 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, benign prostate neoplasm/hypertrophy, or malignancy that in the opinion of the Investigator, is considered cured with minimal risk of recurrence within 3 years). Participants with history of myelodysplastic syndrome (MDS)/acute myeloid leukemia (AML) are excluded, irrespective of timeframe
* Participant with known polymorphisms in UGT1A1, DPYD or other enzymes known to predict for increased toxicity from irinotecan or 5 fluorouracil (5-FU) should be excluded; if status is unknown testing is not mandated, unless required by local guidance. Participants that discontinued prior 5-FU treatment due to toxicity are also excluded
* Participants with known brain metastases, except if clinically controlled, which is defined as individuals with central nervous system (CNS) tumors that have been treated and are asymptomatic, and who have discontinued steroids (for the treatment of CNS tumors) for \> 28 days prior to first dose of study intervention
* Other protocol defined exclusion criteria could apply

Primary outcomes:
measure: Number of Participants with Treatment-Emergent Adverse Events (TEAEs) and Treatment Related TEAEs
timeFrame: Time from signing Informed Consent Form (ICF) up to 30 days after end of study intervention (approximately assessed up to 18.7 months)
measure: Number of Participants with Dose Limiting Toxicity (DLT)
timeFrame: Day 1 up to Day 28 of the first two Cycles (each cycle is of 14 days)
Secondary outcomes:
measure: Pharmacokinetic (PK) Plasma Concentration of M9466
timeFrame: Pre-dose up to 6 hours post-dose on Cycle 1 Day 1; at pre-dose on Cycle 1 Day 5 and Cycle 1 Day 8 (each cycle is of 14 days)
measure: Objective Response (OR) According to Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1) Assessed by Investigator
timeFrame: Time from first treatment of study intervention up to planned assessment at 18.7 months
Other outcomes:
Locations:
city: Denver
country: United States
facility: Sarah Cannon Research Institute at Health One
state: Colorado
city: Pennington
country: United States
facility: Carolina BioOncology Institute, LLC - Cancer Therapy and Research Center
state: New Jersey
city: Nashville
country: United States
facility: Vanderbilt University - 150912667
state: Tennessee
city: Houston
country: United States
facility: The University of Texas MD Anderson Cancer Center
state: Texas
city: Elizabeth Vale
country: Australia
facility: Cancer Research SA
city: Kogarah
country: Australia
facility: St George Private Hospital
city: Parkville
country: Australia
facility: Peter MacCallum Cancer Centre - Use the one with Account 2 VCCC
city: Chuo-ku
country: Japan
facility: National Cancer Center Hospital
city: Seoul
country: Korea, Republic of
facility: Samsung Medical Center
city: Seoul
country: Korea, Republic of
facility: Seoul National University Hospital
city: Barcelona
country: Spain
facility: NEXT Barcelona - NEXT Barcelona
city: Pozuelo de Alarcon
country: Spain
facility: NEXT Madrid - Hospital Universitario Quironsalud Madrid
Study officials:
affiliation: EMD Serono Research & Development Institute, Inc.
name: Medical Responsible
role: STUDY_DIRECTOR
References: