Dendritic Cells (White Blood Cells) Vaccination for Advanced Melanoma
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ClinicalTrials.gov Identifier: NCT00683670 |
Recruitment Status :
Completed
First Posted : May 23, 2008
Last Update Posted : February 23, 2017
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Condition or disease | Intervention/treatment | Phase |
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Melanoma | Drug: cyclophosphamide Biological: Mature dendritic cell vaccine | Phase 1 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 17 participants |
Allocation: | Non-Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Mature Dendritic Cell Vaccination Against gp100 in Patients With Advanced Melanoma |
Study Start Date : | August 2008 |
Actual Primary Completion Date : | June 2016 |
Actual Study Completion Date : | June 2016 |

Arm | Intervention/treatment |
---|---|
Experimental: Dendritic Cell Vaccine (First Group)
Blood mononuclear cells will be collected for vaccine production through apheresis. Patients will be given cyclophosphamide 300mg/m2 IV 3 days prior to vaccine dose #1 in order to deplete regulatory T cells. Patients will receive mature DC for each dose of vaccine and will receive autologous dendritic cells. The DC vaccine will be given intravenously every 3 weeks for a total of 6 doses. Peripheral blood will be taken weekly to monitor the immune response. Apheresis is repeated after vaccine dose #3 and dose #6 in order to collect PBMC for immune monitoring. Patients with stable disease or better after 6 doses will be eligible to receive additional vaccinations as maintenance therapy every 2 months until progression.
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Drug: cyclophosphamide
Other Name: Cytoxan Biological: Mature dendritic cell vaccine |
Experimental: Dendritic Cell Vaccine (Second Group)
Blood mononuclear cells will be collected for vaccine production through apheresis. Patients will be given cyclophosphamide 300mg/m2 IV 3 days prior to vaccine dose #1 in order to deplete regulatory T cells. Patients will receive mature DC for each dose of vaccine and will receive autologous dendritic cells. The DC vaccine will be given intravenously every 3 weeks for a total of 6 doses. Peripheral blood will be taken weekly to monitor the immune response. Apheresis is repeated after vaccine dose #3 and dose #6 in order to collect PBMC for immune monitoring. Patients with stable disease or better after 6 doses will be eligible to receive additional vaccinations as maintenance therapy every 2 months until progression.
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Drug: cyclophosphamide
Other Name: Cytoxan Biological: Mature dendritic cell vaccine |
Experimental: Dendritic Cell Vaccine (Third Group)
Blood mononuclear cells will be collected for vaccine production through apheresis. Patients will be given cyclophosphamide 300mg/m2 IV 3 days prior to vaccine dose #1 in order to deplete regulatory T cells. Patients will receive mature DC for each dose of vaccine and will receive autologous dendritic cells. The DC vaccine will be given intravenously every 6 weeks for a total of 3 doses. Peripheral blood will be taken weekly to monitor the immune response. Apheresis is repeated after vaccine dose #3 in order to collect PBMC for immune monitoring.
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Drug: cyclophosphamide
Other Name: Cytoxan Biological: Mature dendritic cell vaccine |
- Immunological response based on measuring increased numbers of peptide specific CD8+ T cells as calculated by the tetramer assay. [ Time Frame: Through completion of treatment ]
- Starting on Day 0, two tubes will be drawn weekly until Day 64. Thereafter, two tubes will be drawn every 21 days until Day 190. For patients receiving maintenance treatment, blood is drawn every month.
- Data are presented as the percentage of CD8+ T cells positive for tetramer binding based on gating variables set using the iMASC reagent kit (Beckman Coulter).
- Safety and tolerability of the mature dendritic cell vaccine as measured by adverse events [ Time Frame: 30 days after end of treatment ]The descriptions and grading scales found in the revised NCI Common Terminology Criteria for Adverse Events (CTCAE) version 3.0 will be utilized for all toxicity reporting.
- Time to progression [ Time Frame: Through completion of treatment or until progressive disease ]
- Regulatory T cell depletion after cyclophosphamide administration. [ Time Frame: Day -3 (72 hours prior to vaccine dose 1) ]Regulatory T cells (Treg) are defined as CD4+CD25+foxP3+ (triple positive) cells. At the indicated time points, the percentage of Treg cells is determined by 3 color flow cytometry. The depletion of Treg is defined as follows [Treg baseline - Treg nadir/ Treg baseline x 100= % depletion].
- Safety and side effect profile of mDC administered to patients given after a single dose of cyclophosphamide. [ Time Frame: Day 0 (prior to vaccine dose 1) ]
- Clinical response rate using RECIST criteria [ Time Frame: After third vaccine, sixth vaccine, and then every 8 weeks ]

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Unresectable stage III and stage IV M1a/M1b/M1c melanoma including patients with uveal melanoma
- Age ≥ 18 years
- Life expectancy ≥ 4 months
- ECOG performance status 0-2
- At least 28 days from prior treatment (including adjuvant interferon) except in cases of a BRAF inhibitor (such as vemurafenib); concurrent treatment with a BRAF inhibitor +/- MEK inhibitor is permitted
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Required initial laboratory values (submitted within 14 days prior to registration):
- WBC >3,000/mm3
- Hg ≥ 9.0 gm/dl
- Platelets >75,000/mm3
- Serum Bilirubin < 2.0 mg/dl
- Serum Creatinine < 2.0 mg/dl
- Sexually active women of childbearing potential must use effective birth control during the trial and for at least two months following the trial, and sexually active men must be willing to avoid fathering a new child while receiving therapy.
Exclusion Criteria:
- Prior treatment with more than one line of cytotoxic chemotherapy; prior treatment with one line of cytotoxic chemotherapy is permitted. Prior treatment with targeted therapy (such as ipilumumab, anti-PD1, and BRAF inhibitor) is permitted.
- Active untreated CNS metastasis
- Active infection
- Prior malignancy (except non-melanoma skin cancer) within 3 years
- Pregnant or nursing
- Concurrent treatment with corticosteroids; local (inhaled or topical) steroids are permitted.
- Inability to provide adequate informed consent
- Known allergy to eggs
- Prior history or uveitis or autoimmune inflammatory eye disease.
- Known positivity for hepatitis BsAg, hepatitis C antibody, or HIV antibody.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00683670
United States, Missouri | |
Washington University School of Medicine | |
St. Louis, Missouri, United States, 63110 |
Principal Investigator: | Gerald P. Linette, M.D., Ph.D. | Abramson Cancer Center at Penn Medicine |
Publications:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | University of Pennsylvania |
ClinicalTrials.gov Identifier: | NCT00683670 |
Other Study ID Numbers: |
07-0652 / 826850 |
First Posted: | May 23, 2008 Key Record Dates |
Last Update Posted: | February 23, 2017 |
Last Verified: | February 2017 |
Melanoma Neuroendocrine Tumors Neuroectodermal Tumors Neoplasms, Germ Cell and Embryonal Neoplasms by Histologic Type Neoplasms Neoplasms, Nerve Tissue Nevi and Melanomas Cyclophosphamide |
Immunosuppressive Agents Immunologic Factors Physiological Effects of Drugs Antirheumatic Agents Antineoplastic Agents, Alkylating Alkylating Agents Molecular Mechanisms of Pharmacological Action Antineoplastic Agents Myeloablative Agonists |