Skip to content

Anti-GD2 ADC M3554 in Advanced Solid Tumors

A Phase 1, Two-Part, Multicenter, Open-Label First in Human Study of Anti-GD2 Antibody Drug Conjugate M3554 in Participants With Advanced Solid Tumors

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06641908
Enrollment
52
Registered
2024-10-15
Start date
2024-11-08
Completion date
2027-04-16
Last updated
2026-09-08

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

Conditions

Advanced Solid Tumor

Keywords

Glioblastoma, IDH-wildtype, Soft tissue sarcomas, GD2 prevalence, targeted therapy, TOP1 inhibitor, exatecan

Brief summary

The purpose of this study is to establish the recommended doses and further evaluate the safety and preliminary antitumor activity of M3554 in participants with soft tissue sarcoma (STS) and glioblastoma, IDH-wildtype. Study details include: Study Duration per participant: Approximately 4 months

Interventions

DRUGM3554

M3554 will be administered at an escalated dose until Maximum tolerated dose (MTD) and/or a safe recommended Dose is determined in participants with STS (dose escalation A) and glioblastoma and IDH wildtype (dose escalation B).

Sponsors

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

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Escalation A: participants with documented histopathological diagnosis of locally advanced or metastatic STS with unresectable disease that has progressed after at least one prior line of anthracycline-containing systemic therapy for the locally advanced/metastatic setting. * Participants with resectable locally advanced or metastatic disease, who had surgery before study entry will be allowed in the trial if there is residual disease after surgery and if the surgery was performed at least 4 weeks before first dose of study intervention. * Escalation B: participants with documented histopathological diagnosis of glioblastoma, IDH-wildtype, who have progressed after ONLY one prior line of therapy (including radiotherapy +/- temozolomide, depending on the O\^6-methylguanine-DNA methyltransferase \[MGMT\] status) and relapsing at least 3 months after the end of the radiotherapy treatment. * Eastern Cooperative Oncology Group Performance Status (ECOG PS) below or equal to 1 * Participants with adequate hematologic, hepatic and renal function as defined in protocol * Other protocol defined inclusion criteria could apply *

Exclusion criteria

* Participant has a history of malignancy other than STS or glioblastoma (depending on the escalation/expansion cohort) 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/hypertropia, or malignancy that in the opinion of the Investigator, is considered cured with minimal risk of recurrence within 3 years). * STS only: Participants with history of brain metastasis, leptomeningeal metastasis, or participants with spinal cord compression * Other protocol defined

Design outcomes

Primary

MeasureTime frame
Number of Participants with Dose Limiting Toxicities (DLTs) and Adverse Events (AEs)up to 4 months

Secondary

MeasureTime frame
Pharmacokinetic (PK) Plasma Concentrations of M3554Cycle 1 Day 1 to Cycle 3 Day 15 and every second cycle from Cycle 4 (each cycle is of 21 days), assessed up to approximately 4 months
Objective Response (OR) According to Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 or Response Assessment in Neuro-oncology (RANO) 2.0 as Assessed by InvestigatorTime from randomization to planned assessment at 4 months
Duration of Response (DoR) According to RECIST Version 1.1 or RANO 2.0 as Assessed by InvestigatorTime from randomization to planned assessment at 4 months
Progression-free Survival (PFS) According to RECIST Version 1.1 or RANO 2.0 as Assessed by InvestigatorTime from randomization to planned assessment at 4 months
Change from Baseline in Corrected QT Interval (QTc) IntervalPre-dose on Day 1 (baseline) up to 24 hours post-dose Day 1, Day 2, Day 5, Day 8 of Cycle 1 and Cycle 3 Day 1 (each Cycle is 21 days)

Countries

Belgium, France, Japan, Switzerland, United Kingdom, United States

Contacts

CONTACTUS Medical Information
eMediUSA@emdserono.com888-275-7376
CONTACTCommunication Center
service@emdgroup.com+49 6151 72 5200
STUDY_DIRECTORMedical Responsible

EMD Serono Research & Development Institute, Inc.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 9, 2026