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OMP-59R5

Phase 1

Solid Tumors | Small molecule | Oncology |Mereo BioPharma Group plc|Last Updated: Feb 15, 2023

Success Probability

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Trial Design

UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment42

FDA Designations

No designations recorded

Clinical trial landscape

OMP-59R5 · 2 trials · 2 indications

Phase 1 2
NCT01647828A Phase 1b/2 Study of OMP-59R5 (Tarextumab) in Combination With Nab-Paclitaxel and Gemcitabine in Subjects With Previously Untreated Stage IV Pancreatic CancerStage IV Pancreatic Cancer
COMPLETED217 Analytics
NCT01277146A Dose Escalation Study of OMP-59R5 in Subjects With Solid TumorsSolid Tumors
COMPLETED42 Analytics
PHASE1COMPLETED
A Phase 1b/2 Study of OMP-59R5 (Tarextumab) in Combination With Nab-Paclitaxel and Gemcitabine in Subjects With Previously Untreated Stage IV Pancreatic Cancer
Stage IV Pancreatic CancerUnlock trial analytics
PHASE1COMPLETED
A Dose Escalation Study of OMP-59R5 in Subjects With Solid Tumors
Solid TumorsUnlock trial analytics

Study Endpoints

Primary Endpoints

Phase Ib: Number of Participants With Dose-limiting Toxicities (DLT)
Up to 1 year in absence of unacceptable toxicity or disease progression.

Number of participants with dose-limiting toxicities when administered OMP-59R5 every of other week (Days 1 and 15) in combination with nab-paclitaxel (Nab-P) 125 mg/m2 and gemcitabine (Gem) 1000 mg/m2 on Days 1, 8, and 15 of every 28-day cycle in subjects with previously untreated stage IV pancreatic cancer. In the event that no DLTs are observed, maximum tested dose would be considered the Maximum Tolerated Dose (MTD).

Phase 2: Overall Survival (ITT Population)
Up to 1 year in absence of unacceptable toxicity or disease progression.

To determine the clinical benefit, as measured by overall survival (OS) ofthe addition of OMP-59R5 to nab-paclitaxel and gemcitabine in all subjects who are receiving first-line therapy for stage IV pancreatic cancer.

Phase 2: Median OS by Notch 3 Percentile (ITT Population)
Up to 1 year in absence of unacceptable toxicity or disease progression.

To determine the clinical benefit, as measured by OS of the addition of OMP-59R5 to Nab-P+Gem across the 4 subject subsets: subjects with Notch3 ≥ 25th percentile, subjects with Notch3 ≥ 50th percentile, subjects with Notch3 ≥ 75th percentile and all subjects receiving first-line therapy for stage IV pancreatic cancer with Notch3 high expression level.

To determine the safety of OMP-59R5 in subjects with previously treated solid tumors
continuous

The number of patients experiencing Adverse Events will be reported.

Secondary Endpoints

To determine the pharmacokinetics of OMP-59R5 in subjects with previously treated solid tumors
First 8 doses and following treatment termination
To determine the immunogenicity of OMP-59R5 in subjects with previously treated solid tumors
continuous
To assess the preliminary efficacy of OMP-59R5 in subjects with previously treated solid tumors
continuous
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
OMP-59R5 plus Gemcitabine and Nab-PaclitaxelEXPERIMENTALOMP-59R5 plus Gemcitabine and Nab-Paclitaxel
Gemcitabine and Nab-Paclitaxel plus PlaceboEXPERIMENTALGemcitabine and Nab-Paclitaxel plus Placebo
OMP-59R5EXPERIMENTAL -

Interventions

NameTypeDescription
OMP-59R5DRUGOMP-59R5 administered intravenously
GemcitabineDRUGadministered intravenously
PlaceboDRUGadministered IV
Nab-PaclitaxelDRUGadministered intravenously
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Eligibility Criteria

Age Range18 Years to 90 Years
SexALL
Healthy VolunteersNo
Study Sites26

Inclusion Criteria: Subjects must meet all of the following major inclusion criteria to be eligible for the study: 1. 18 years of age or older 2. Histologically or cytologically documented stage IV ductal adenocarcinoma of the pancreas. 3. Performance Status (ECOG) 0 or 1 4. FFPE tumor tissue from...

Countries:United States
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Competitive Landscape -Other Solid Tumors 9 trials (matched to "Solid Tumors")

Frequently asked questions about OMP-59R5

What is OMP-59R5 used for?

OMP-59R5 is an investigational small molecule being studied for the treatment of solid tumors and stage IV pancreatic cancer. It is developed by Mereo BioPharma Group plc (MREO) and is currently in Phase 1 clinical development.

Who makes OMP-59R5?

OMP-59R5 is developed by Mereo BioPharma Group plc, a biopharmaceutical company listed on the stock exchange under the ticker MREO. The drug is being investigated for oncology indications, including solid tumors and stage IV pancreatic cancer.

What phase is OMP-59R5 in?

OMP-59R5 is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. Clinical trials have been completed, but the drug remains under investigation for solid tumors and stage IV pancreatic cancer.

What clinical trials is OMP-59R5 in?

OMP-59R5 has been studied in two completed clinical trials. NCT01277146 was a dose escalation study in subjects with solid tumors, enrolling 42 participants. NCT01647828 was a Phase 1b/2 study combining OMP-59R5 with nab-paclitaxel and gemcitabine in previously untreated stage IV pancreatic cancer, enrolling 217 participants.

Is OMP-59R5 the same as Tarextumab?

Yes, OMP-59R5 is also known as Tarextumab. In clinical trial NCT01647828, the drug is referred to as OMP-59R5 (Tarextumab), confirming that both names refer to the same investigational agent.