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Phase 1b Multi-indication Study of Anetumab Ravtansine in Mesothelin Expressing Advanced Solid Tumors

Phase 1b Multi-indication Study of Anetumab Ravtansine (BAY94-9343) in Patients With Mesothelin Expressing Advanced or Recurrent Malignancies

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03102320
Acronym
ARCS-Multi
Enrollment
173
Registered
2017-04-05
Start date
2017-05-26
Completion date
2021-07-26
Last updated
2022-06-30

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

Conditions

Neoplasms

Keywords

cholangiocarcinoma, pancreatic cancer, triple-negative breast cancer, non-small cell lung cancer, thymic carcinoma, gastric including gastroesophageal junction cancer

Brief summary

The key purpose of the main part of the study is to assess efficacy and safety of anetumab ravtansine as monotherapy or combination therapy for mesothelin expressing advanced solid tumors. The main purpose of the safety lead-in (dose-finding) part of the study is to determine the safety and tolerability of anetumab ravtansine in combination with cisplatin and in combination with gemcitabine, and to determine the MTD of anetumab ravtansine in combination with cisplatin for mesothelin expressing advanced cholangiocarcinoma and in combination with gemcitabine for mesothelin expressing advanced adenocarcinoma of the pancreas. Patients will receive anetumab ravtansine every three weeks in monotherapy for most indications. In cholangiocarinoma and adenocarinoma of the pancreas, 3-weekly anetumab ravtansine is administered in combination with cisplatin or gemcitabine respectively (both administered in a 2 week on / 1 week off schedule). Treatment will continue until disease progression or until another criterion for withdrawal is met. .Efficacy will be measured by evaluating the tumor's objective response rate. Radiological tumor assessments will be performed at defined time points until the patient's disease progresses. Blood samples will be collected for safety, pharmacokinetic and biomarker analysis. Archival or fresh biopsy tissue will also be collected for mesothelin expression testing and biomarker analyses.

Interventions

DRUGCisplatin

Cisplatin 25 mg/m2 IV administered on day 1 and day 8 of 21 day cycle, for up to maximum 6 cycles

DRUGGemcitabine

Gemcitabine 1000 mg/m2 IV administered on days 1 and 8 of a 21-day cycle

Anetumab ravtansine 6.5mg/kg IV in monotherapy indications. For combination indications, the MTD determined in safety lead in phase will be administered

Sponsors

ImmunoGen, Inc.
CollaboratorINDUSTRY
MorphoSys AG
CollaboratorINDUSTRY
Bayer
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Availability of tumor tissue for mesothelin expression testing and for further biomarker analysis * Histologically-confirmed, mesothelin-expressing metastatic or advanced non-metastatic disease (tumour type specific inclusion criteria) * At least one measurable lesion according to Response Evaluation Criteria in Solid Tumors (RECIST 1.1) (or for thymic carcinoma, at least one measurable lesion per International Thymic Malignancy Interest Group (ITMIG) modified RECIST 1.1 criteria * Adequate bone marrow, liver, renal and coagulation function * Left ventricular ejection fraction (LVEF) ≥ 50% of the lower limit of normal (LLN) according to local institutional ranges * Eastern Cooperative Oncology Group (ECOG) 0 or 1

Exclusion criteria

* Exposure to more than one prior anti-tubulin/microtubule agent * Corneal epitheliopathy or any eye disorder that may predispose the patients to this condition * Symptomatic Central nervous system (CNS) metastases and/or carcinomatous meningitis * Contraindication to both CT and MRI contrast agents * Active hepatitis B or C infection * Pregnant or breast-feeding patients * Tumor type specific

Design outcomes

Primary

MeasureTime frameDescription
Number of patients in the safety lead-in (SLI) phase who completed Cycle 1 or had a DLT and were not replaced.At least 3 weeks after the last patient starts treatmentDuring SLI, patients with cholangiocarcinoma received anetumab ravtansine in combination with cisplatin and patients with pancreatic adenocarcinoma received anetumab ravtansine in combination with gemcitabine. The highest dose of anetumab ravtansine that can be given so that not more than 1 out of 6 patients experiences a dose-limiting toxicity (DLT) during the DLT evaluation period were declared as the MTD for anetumab ravtansine in combination with cisplatin or with gemcitabine.
Objective response (qualitative improvement from baseline) of anetumab ravtansine for monotherapy and combination therapy in mesothelin expressing advanced solid tumorsUp to approximately 26 months after patient starts treatmentA patient is a responder if the patient has a best response compared to baseline of complete response (CR) or partial response (PR) among all post-baseline tumor assessments, as determined per RECIST 1.1 criteria (ITMIG modified RECIST 1.1 criteria for thymic carcinoma)
Durable disease control (lack of progression from baseline) of anetumab ravtansine in indications pancreatic and gastric cancer (co-primary endpoint)Up to approximately 26 months after patient starts treatmentA patient experiences durable disease control if the patient has a tumor response compared to baseline of CR, PR or stable disease (SD) among the post-baseline tumor assessments made at least 180 days from first treatment, without prior disease progression

Secondary

MeasureTime frameDescription
Durable response rate (DRR)Up to approximately 24 months after last patient starts treatment, or until earlier disease progression [assessed every 6 weeks for the first 6 months, every 9 weeks until end of year 1 and every 12 weeks thereafter]A durable responder is defined as a responder (CR or PR) with a duration of response per RECIST 1.1 criteria (ITMIG modified RECIST 1.1 criteria for thymic carcinoma) of 180 days or more. The DRR is the number of durable responders divided by the number of treated patients.
Number of serious and non-serious adverse events (AEs)Approximately 26 months (Until 30 days after the last day of study treatment, or until later resolution of adverse events or determination by the investigator that the event will not improve)Include treatment-emergent AEs, SAEs, treatment-related AEs, AEs of special interest, and deaths.
Durable disease control rate (DDCR) of anetumab ravtansine in indications other than pancreatic and gastric cancerUp to approximately 24 months after last patient starts treatment, or until earlier disease progression [assessed every 6 weeks for the first 6 months, every 9 weeks until end of year 1 and every 12 weeks thereafter]A patient experiences durable disease control if the patient has a tumor response of CR, PR or SD with CR, PR or SD assessed at least 180 days from first treatment, without prior progression.
Progression free survival (PFS)Up to approximately 24 months after last patient starts treatment, or until earlier disease progression [assessed every 6 weeks for the first 6 months, every 9 weeks until end of year 1 and every 12 weeks thereafter]PFS is defined as time from start of treatment until disease progression according to RECIST 1.1 (ITMIG modified RECIST 1.1 criteria for thymic carcinoma) or death.
Disease control rate (DCR)Up to approximately 24 months after last patient starts treatment, or until earlier disease progression [assessed every 6 weeks for the first 6 months, every 9 weeks until end of year 1 and every 12 weeks thereafter]The DCR is defined as the number of patients with disease control divided by the number of treated patients.
Duration of response (DOR)Up to approximately 24 months after last patient starts treatment, or until earlier disease progression [assessed every 6 weeks for the first 6 months, every 9 weeks until end of year 1 and every 12 weeks thereafter]DOR is defined in responders as the time from documentation of tumor response (CR or PR) to earlier of disease progression or death

Countries

Australia, Belgium, Canada, France, Italy, Netherlands, Singapore, South Korea, Spain, Switzerland, United Kingdom, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 28, 2026