CT7, MAGE-A3, and WT1 mRNA-electroporated Autologous Langerhans-type Dendritic Cells as Consolidation for Multiple Myeloma Patients Undergoing Autologous Stem Cell Transplantation

Multiple Myeloma Clinical Trial

Official title:

A Phase I Trial of Vaccination With CT7, MAGE-A3, and WT1 mRNA-electroporated Autologous Langerhans-type Dendritic Cells as Consolidation for Multiple Myeloma Patients Undergoing Autologous Stem Cell Transplantation

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT01995708
• Other study ID #: 13-009
• Status: Completed
• Phase: Phase 1
• Start date: January 31, 2014
• Est. completion date: June 20, 2022

Study information

• Verified date: June 2022
• Source: Memorial Sloan Kettering Cancer Center
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The purpose of this study is to see if the investigator can help the immune system to work against myeloma.

This study will see if a vaccine made with altered dendritic cells will make T cells work against tumor cells. The stem cells collected for the transplant will also be used to grow dendritic cells in the lab. The dendritic cells will carry the antigens. These cells then will be injected under the skin. The investigators will do lab studies before and after the vaccination to find out if the vaccine is working.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 28
• Est. completion date: June 20, 2022
• Est. primary completion date: June 20, 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Symptomatic multiple myeloma, ISS stages I-III, within 12 months of starting therapy.

• Completion of induction therapy with Very Good Partial Response (VGPR), or better, by International Myeloma Working Group (IMWG) criteria.

• Deemed eligible for ASCT by standard institutional criteria.

• Age =18 years.

• Documentation of CT7, MAGE-A3, or WT1 expression in the bone marrow and/or bone marrow aspirate.

Exclusion Criteria:

• Prior autologous or allogeneic SCT.

• Previous immunization against CT7, MAGE-A3, other cancer-testis antigens, or WT1.

• Known immunodeficiency, HIV positivity, hepatitis B, or hepatitis C.

• History of autoimmune disease (e.g., rheumatoid arthritis, SLE), other than vitiligo, diabetes, or treated thyroiditis, which are allowed.

• History of severe allergic reactions to vaccines or unknown allergens.

• Participation in any other clinical trial involving another investigational agent within 4 weeks prior to first immunization.

• Lenalidomide-related toxicities before ASCT necessitating its discontinuation as part of treatment.

Related Conditions & MeSH terms

• Multiple Myeloma
• Neoplasms, Plasma Cell

Intervention

Biological:
• CT7, MAGE-A3, and WT1 mRNA-electroporated Langerhans cells ( LCs)
Patients receive CT7/MAGE-A3/WT1 mRNA-electroporated autologous Langerhans-type dendritic cells ID on days 12, 30, and 90 after autologous stem cell transplant. Patients on the vaccine arm of the study will receive a total of 3 vaccinations, comprising a primary immunization on day +12 after ASCT followed by two boosters at days +30 and +90. Vaccines will be dosed at 9x10^6 LCs per vaccine x 3.

Other:
• Standard of care
No vaccines

Locations

Country	Name	City	State
United States	Memorial Sloan Kettering Cancer Center	New York	New York

Sponsors (1)

Lead Sponsor	Collaborator
Memorial Sloan Kettering Cancer Center

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Number of Participants Evaluated for Vaccine Safety	Participants will be evaluated for the safety of the vaccine, monitored and graded according to the Common Terminology Criteria for Adverse Events (CTCAE) v4.0 for toxicity and adverse event reporting to the Food and Drug Administration. Dose limiting toxicity (DLT) is defined as grade 3 or higher toxicity. The only toxicities captured outside of the SAEs reported will be all grade 1-5 toxicites deemed definitely, probably, or possibly related to the vaccine portion of the study.	1 year
Secondary	Median Progression Free Survival	Median profression free survival.	Up to 7 years

External Links

•   Memorial Sloan Kettering Cancer Center