NCT01265433

Galinpepimut-S (WT-1 Analog Peptide) Vaccine in Malignant Pleural Mesothelioma After Combined Modality Therapy

Randomized Phase II Study of Adjuvant WT-1 Analog Peptide Vaccine in Patients With Malignant Pleural Mesothelioma (MPM) After Completion of Combined Modality Therapy

• Status: Completed
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 41 (actual)
• Sponsor: Sellas Life Sciences Group · Industry
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Study of galinpepimut-S, a Wilms Tumor-1 (WT1) vaccine, to see if it delays or prevents the mesothelioma from growing back after surgery. WT1 is a protein in cancer cells that regulates gene expression and causes cell growth.

Detailed description

The doctors are testing galinpepimut-S, a Wilms Tumor-1 (WT1) vaccine, to see if it delays or prevents the mesothelioma from growing back after surgery. WT1 is a protein in cancer cells that regulates gene expression and causes cell growth. Mesothelioma tumors generally have high levels of WT1.This study was originally designed to have two treatment groups. One group received non-specific immunotherapy with medications called Montanide and Sargramostim (Granulocyte Macrophage Colony Stimulating Factor, GM-CSF). Enrollment to this group has stopped The other group, which continues receives more specific immunotherapy with galinpepimut-S plus Montanide and GM-CSF. Both Montanide and GM-CSF are commonly given along with vaccines because they have a general effect in boosting the immune response. Some researchers believe that this general increase in the immune system may have some effect in treating cancer. Some studies using GM-CSF with melanoma vaccines have suggested that it could lessen the effects of the vaccine. The addition of the WT1 proteins makes this therapy more directed to mesothelioma. The combination of galinpepimut-S with Montanide and GM-CSF has been tested in a prior trial including 9 patients with advanced mesothelioma. In that trial, the vaccine was safe and caused an immune response.

Conditions

• Malignant Pleural Mesothelioma

Interventions

Type	Name	Description
BIOLOGICAL	Galinpepimut-S + Montanide + GM-CSF	Patients will receive 6 injections over 12 weeks. Treatment will be administered on weeks 0, 2, 4, 6, 8, and 10. All patients will receive Sargramostim (GM-CSF) (70 mcg) injected subcutaneously on days 0 and -2 of each vaccination. Patients may self administer the Sargramostim (GM-CSF) on day -2 if they have been appropriately instructed on SQ injection administration. Patients will be informed of the expected reactions such as irritation at the injection site. Patients will keep a logbook noting the time and placement of the injection. Patients will also receive 1.0 ml of emulsion with Montanide alone or with WT-1 peptides plus Montanide. It will be administered by a nurse (it may not be self administered) subcutaneously to the same anatomical site as the GM-CSF. This site will be marked by the patient or treating healthcare professional by a permanent marker pen.
BIOLOGICAL	Montanide + GM-CSF	Patients will receive 6 injections over 12 weeks. Treatment will be administered on weeks 0, 2, 4, 6, 8, and 10. All patients will receive Sargramostim (GM-CSF) (70 mcg) injected subcutaneously on days 0 and -2 of each vaccination. Patients may self administer the Sargramostim (GM-CSF) on day -2 if they have been appropriately instructed on SQ injection administration. Patients will be informed of the expected reactions such as irritation at the injection site. Patients will keep a logbook noting the time and placement of the injection. Patients will also receive 1.0 ml of emulsion with Montanide alone or with WT-1 peptides plus Montanide. It will be administered by a nurse (it may not be self-administered)subcutaneously to the same anatomical site as the GM-CSF. This site will be marked by the patient or treating healthcare professional by a permanent marker pen.

Timeline

• Start date: 2010-12-21
• Primary completion: 2016-11-30
• Completion: 2017-07-25
• First posted: 2010-12-23
• Last updated: 2024-10-09
• Results posted: 2024-10-09

Locations

1 site across 1 country: United States