Last updated on January 2020

Perioperative MVT-5873 a Fully Human Monoclonal Antibody Against a CA 19-9 Epitope for Operable CA 19-9 Producing Pancreatic Cancers Cholangiocarcinomas and Metastatic Colorectal Cancers

Brief description of study


Gastrointestinal tumors have a molecule called CA19-9 in the tumors and blood. The agent MVT-5873 was designed to block this molecule. Researchers want to test how safe it is to give this agent to people before and after surgery to remove a tumor. They want to learn the highest dose tolerated. They want to see if getting the agent at surgery helps slow down the disease.


To test the safety of giving MVT-5873 at surgery to remove cancer and see if it slows the progression of the disease.


Adults at least 18 years old with certain cancers and certain blood CA19-9 levels


Participants will be screened with:

  • Medical history
  • Physical exam
  • Blood and heart tests
  • Scans
  • Review of normal activities
  • Review of tumor sample
  • Pregnancy test

A few days before surgery, participants will get a dose of the study agent. They will get it through a small plastic tube in a vein over about 2 hours.

Participants will sign a separate consent and have the surgery. A sample of the tumor and normal liver will be removed for research.

For 1-2 weeks after surgery, participants will recover in intensive care then regular care at the hospital. They will be monitored and treated throughout the stay.

After leaving the hospital, participants will get the study agent every week for 1 month. Then they will get it every other week for 2 months. They will repeat screening tests at study visits and at a follow-up visit. That will be about 5 weeks after the last dose.

Detailed Study Description

  • Resections to remove tumors in the liver, bile ducts and pancreas are rarely curative, and patients frequently succumb to disease recurrence in the ensuing months to year(s) after the operation.
  • Standard adjuvant therapies, which typically begin 6-12 weeks after surgery, offer little demonstrable decreases in the rates of tumor recurrence.
  • The concept and implementation of immediate perioperative therapy has not been evaluated given the serious concerns related to healing and recovery with standard cytotoxic chemotherapy and newer targeted agents.
  • A significant percentage of metastatic colorectal cancers, and primary tumors of the pancreas and bile ducts express Sialyl Lewis, an epitope on the well-established tumor marker, CA 19-9.
  • MVT-5873, a fully human antibody against Sialyl Lewis, has displayed ADCC and CDC in vitro, potentiated chemotherapeutic efficacy in mouse models and demonstrated efficacy in Phase 1 trials of patients with advanced inoperable HPB cancers.
  • MVT-5873 is well tolerated as a single agent; moderate elevations in AST/ALT appear to be dose-limiting.
  • Patients with resectable Sialyl Lewis-expressing cancers represent an ideal population to explore the use of perioperative MVT-5873 given moderate level of CA 19-9 elevations, and the potential for extension of recurrence-free survival.
  • Document the safety of perioperative MVT-5873 in patients undergoing pancreas and liver resections.
  • Determine if perioperative MVT-5873 can decrease 1-year recurrence rates for patients with operable CA 19-9-producing cancers.
  • Histologically or cytologically confirmed adenocarcinoma of the
  • Colon (metastatic to liver)
  • Pancreas
  • Bile Ducts (Cholangiocarcinoma)
  • Serum CA19-9 levels greater than the upper limit of normal, but less than 2500.
  • Disease amenable to complete surgical extirpation.

-Pre-operative one-time treatment with MVT-5873, resection to remove all demonstrable disease in the liver, bile ducts and pancreas, and continuing MVT-5873 mono-therapy until off treatment criteria are met.

Clinical Study Identifier: NCT03801915

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