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OMP-305B83

Phase 1

Advanced Solid Tumor Malignancies | Small molecule | Oncology |Mereo BioPharma Group plc|Last Updated: Sep 3, 2020

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment71

FDA Designations

No designations recorded

Clinical trial landscape

OMP-305B83 · 2 trials · 4 indications

Phase 1 2
NCT03030287A Phase 1b Study of OMP-305B83 Plus Paclitaxel in Subjects With Ovarian, Peritoneal or Fallopian Tube CancerCancer Ovaries
COMPLETED44 Analytics
NCT02298387A Phase 1 Study of OMP-305B83 in Subjects With Solid TumorsAdvanced Solid Tumor Malignancies
COMPLETED71 Analytics
PHASE1COMPLETED
A Phase 1b Study of OMP-305B83 Plus Paclitaxel in Subjects With Ovarian, Peritoneal or Fallopian Tube Cancer
Cancer OvariesUnlock trial analytics
PHASE1COMPLETED
A Phase 1 Study of OMP-305B83 in Subjects With Solid Tumors
Advanced Solid Tumor MalignanciesUnlock trial analytics

Study Endpoints

Primary Endpoints

Incidence of dose limiting toxicities (DLT)
Subjects will be treated and observed for DLT through the end of the first cycle (Days 0-28).

The maximum tolerated dose (MTD) or maximum administered dose (MAD) will be determined in subjects treated with OMP-305B83 in combination with Paclitaxel

Incidence of dose limiting toxicities (DLTs)
Subjects will be assessed for DLTs from Days 0-21. Adverse events will be reported through 30 days after discontinuation of treatment

Number of subjects with a DLT

Incidence of adverse events
Up to 2 years

Number of subjects with adverse events

Secondary Endpoints

Safety of OMP-30B583 in combination with Paclitaxel will be assessed by adverse event monitoring, physical exams, vital signs, clinical laboratory testing, ECGs, echocardiograms, anti-OMP-305B83 testing, and subject interview on an ongoing basis.
Through study completion, an average of 6 months
To assess Immunogenicity (in terms of formation of anti-drug antibod(ies) against OMP-305B83 in percentage of subjects) of OMP-305B83 in combination with Paclitaxel
Through study completion, an average of 6 months
Response Rate assessed by RECIST criteria 1.1
At 56 day intervals while on treatment, through study completion, an average of 6 months
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
OMP-305B83 plus paclitaxelEXPERIMENTAL -
OMP-305B83EXPERIMENTALThe dose levels of OMP-305B83 will be 0.5, 1.0, 2.5, 5 and 10 mg/kg administered IV once every 3 weeks.

Interventions

NameTypeDescription
OMP-305B83DRUGintravenous (in the vein) infusion
PaclitaxelDRUGadministered intravenously
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Eligibility Criteria

Age Range21 Years to N/A
SexFEMALE
Healthy VolunteersNo
Study Sites7

Inclusion Criteria: 1. Platinum resistant Grade 2 or 3 ovarian, primary peritoneal or fallopian tube cancer 2. Measureable disease per response evaluation criteria (RECIST) v1.1 3. Prior bevacizumab 4. Age \> or = 21 years 5. Adequate organ and marrow function 6. For women of childbearing potential...

Countries:United States
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Frequently asked questions about OMP-305B83

What is OMP-305B83 used for?

OMP-305B83 is an investigational small molecule being studied for the treatment of advanced solid tumor malignancies, including ovarian cancer. It is in Phase 1 clinical development and is not yet approved by the FDA.

Who makes OMP-305B83?

OMP-305B83 is being developed by Mereo BioPharma Group plc, a biopharmaceutical company traded on the NASDAQ under the ticker MREO.

What phase is OMP-305B83 in?

OMP-305B83 is in Phase 1 clinical development. Two Phase 1 studies have been completed, one as a single agent and one in combination with paclitaxel. The drug remains investigational and has not been approved.

What clinical trials has OMP-305B83 been in?

OMP-305B83 has been studied in two completed Phase 1 trials. NCT02298387 evaluated the drug as a single agent in 71 subjects with advanced solid tumors. NCT03030287 evaluated OMP-305B83 plus paclitaxel in 44 female subjects with ovarian, peritoneal, or fallopian tube cancer.

Is OMP-305B83 the same as navicixizumab?

OMP-305B83 is also known as navicixizumab. It is a bispecific antibody that targets both DLL4 and VEGF, and it is being developed for use in oncology.