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Gastric CancerPhase 1NCT02496273

Phase I Trial of CEA Specific AAV-DC-CTL Treatment in Stage IV Gastric Cancer

A Phase 1 study testing CTL in people with Gastric Cancer, run by The First People's Hospital of Changzhou.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

The purpose of this study is to evaluate the clinical safety and preliminary efficacy of CEA specific cytotoxic T lymphocytes induced by dendritic cells infected by recombinant adeno-associated virus with CEA gene in the treatment of stage IV gastric cancer patients. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Gastric Cancer
What is being tested?
CTL
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
No sites listed yet
Study dates
Jan 2016to Dec 2030
Phase
Phase 1
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Any patient, at least 18 yrs old regardless of sex, with a diagnosis of Stage IV Gastric Cancer
  • Patients with life expectancy greater than or equal to 6 weeks.
  • Patients with a Karnofsky score of greater than or equal to 80.
  • serum CEA ≥ 20ng/ml.
  • Patient provides consent for all required biopsies.

Who cannot join

  • Patients with severe active infection.
  • Patients receiving systemic corticosteroid within 48 hours of CTL infusion.
  • Patients with HBV,HCV,HIV infection.

About this study

Official title: Phase 1 Study of CEA Specific Cytotoxic T Lymphocytes Induced by Dendritic Cells Infected by Recombinant Adeno-associated Virus With CEA Gene in Stage IV Gastric Cancer

The purpose of this study is to evaluate the clinical safety and preliminary efficacy of CEA specific cytotoxic T lymphocytes induced by dendritic cells infected by recombinant adeno-associated virus with CEA gene in the treatment of stage IV gastric cancer patients.

Read the detailed description

Carcinoembryonic antigen (CEA) describes a set of highly related glycoproteins involved in cell adhesion.CEA is normally produced in gastrointestinal tissue during fetal development, but the production stops before birth. The serum levels are raised in some types of cancer,such as Gastric Cancer.The expression of CEA in these cancers and succedent unfavourable prognosis such as tumor hyperplasia, recurrence make CEA become the desirable therapeutic target.

Cancer immunotherapy is the use of the immune system to treat cancer. Immunotherapies fall into three main groups: cellular, antibody and cytokine.Cellular therapies involve the removal of immune cells from the blood or from a tumor. Immune cells specific for the tumor are activated, cultured and returned to the patient where the immune cells attack the cancer. Cytotoxic T cells and dendritic cells can be used in cell-based immunotherapy.

This study is for patients that have a stage Ⅳ gastric cancer with elevated serum CEA concentration. This research study uses special immune system cells called CEA-specific cytotoxic T lymphocytes , a new experimental therapy.

Blood will be collected from the patient and the CEA-specific CTLs will be made.The cells will be injected by IV into the patient.The investigators will follow the patient from their last infusion,monitor side effects of immunotherapy and learn more about the way the T cells are working in the patient's body.The investigators will use blood samples to see how long the T cells last and to look at the immune response to the patient's response to cancer.

Conditions
Gastric Cancer
Being tested
CTL
Keywords
Dendritic Cells, Cytotoxic T-Lymphocytes, Adeno-Associated Virus
Medical subject headings
Stomach Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CTLBiological

    Also called CEA Specific Cytotoxic T-Lymphocytes

    Mononuclear cells (Dendritic Cell,DC precursor) were isolated from the peripheral blood of gasric cancer by density gradient centrifugation and infected with rAAV/CEA virus.Maturation of the DC was induced by granulocyte-macrophage colony-stimulating factor (GM-CSF), interleukin-4 (IL-4) and tumor necrosis factor-alpha(TNF-alpha). On day 7, the DCs were collected and mixed with T cells at the ratio of 1 to 20 to induce cytotoxic T lymphocytes (CTL).The cells will be proliferated and infused by intravenous (IV) infusion into the patient.

Study groups in NCT02496273
Study groupRoleWhat they receive
CEA Specific CTLExperimentalPatients receiving CEA-specific CTLs as therapy for Gastric Cancer
Receives: Biological: CTL

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. ELISPOT assays

    Enzyme-Linked ImmunoSpot (ELISPOT) assay is used for monitoring CEA specific cellular immune responses in Gastric Cancer

    Measured: 1 month

Secondary outcomes (1)
  1. overall survival (OS)

    Measured: 1 month

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Jul 2015 (estimated)
  2. Study startJan 2016
  3. Primary completionDec 2026 (estimated)
  4. Study completionDec 2030 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
60 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02496273
Sponsor's protocol ID
CZYY-CTL-001
Status last verified
Feb 2016
First submitted
9 Jul 2015
Last updated
22 Feb 2016
Results posted
No
Data monitoring committee
No

Publications

  • Caruana I, Weber G, Ballard BC, Wood MS, Savoldo B, Dotti G. K562-Derived Whole-Cell Vaccine Enhances Antitumor Responses of CAR-Redirected Virus-Specific Cytotoxic T Lymphocytes In Vivo. Clin Cancer Res. 2015 Jul 1;21(13):2952-62. doi: 10.1158/1078-0432.CCR-14-2998. Epub 2015 Feb 17.

    PubMed 25691731
  • Cui H, Zhang W, Hu W, Liu K, Wang T, Ma N, Liu X, Liu Y, Jiang Y. Recombinant mammaglobin A adenovirus-infected dendritic cells induce mammaglobin A-specific CD8+ cytotoxic T lymphocytes against breast cancer cells in vitro. PLoS One. 2013 May 1;8(5):e63055. doi: 10.1371/journal.pone.0063055. Print 2013.

    PubMed 23650543
  • Martino AT, Basner-Tschakarjan E, Markusic DM, Finn JD, Hinderer C, Zhou S, Ostrov DA, Srivastava A, Ertl HC, Terhorst C, High KA, Mingozzi F, Herzog RW. Engineered AAV vector minimizes in vivo targeting of transduced hepatocytes by capsid-specific CD8+ T cells. Blood. 2013 Mar 21;121(12):2224-33. doi: 10.1182/blood-2012-10-460733. Epub 2013 Jan 16.

    PubMed 23325831

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing CTL in people with Gastric Cancer, run by The First People's Hospital of Changzhou.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 22 Feb 2016. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

ELISPOT assays (time frame: 1 month). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02496273, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Feb 2016.

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