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PD-1 Alone or With Dendritic Cell/Renal Cell Carcinoma Fusion Cell Vaccine

Phase II Study of PD-1 Blockade Alone or In Conjunction With the Dendritic Cell (DC)/Renal Cell Carcinoma (RCC) Fusion Cell Vaccination

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01441765
Enrollment
11
Registered
2011-09-28
Start date
2011-11-30
Completion date
2016-07-31
Last updated
2017-02-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Renal Cell Carcinoma

Keywords

Kidney, Metastatic, Stage IV

Brief summary

CT-011 is an investigational monoclonal antibody. Monoclonal antibodies are a type of drug that are known to target specific cells (in this case, cells in the immune system) The DC RCC Vaccine is agent that tries to help the immune system to recognize and fight against cancer cells. The purpose of this research study is to determine the safety of CT-011 alone, and in combination with the Dendritic Cell Renal Cell Carcinoma (DC RCC) vaccine. The investigators are also trying to find out what effect the combination has on the disease, and on your immune system.

Detailed description

This study is divided into 2 groups. The first 22 subjects will be in Group 1 and will receive CT-011 only. The next 22 subjects will be in Group 2 and will receive CT-011 and the DC RCC vaccine. Group 1: Subjects in this cohort are not required to have tumor resection (nephrectomy) to participate in this study. For subjects who are undergoing nephrectomy and for subjects undergoing resection for another metastasis, infusions of CT-011 will begin 21 to 35 days post-surgery. Subjects will receive 4 cycles of CT-011 therapy. Each cycle consists of a dose of CT-011 given on days 1, 14, and 28 intravenously. For subjects who are not undergoing nephrectomy for standard of care therapy, infusions of CT-011 will begin 21 to 28 days following registration on the study. Subjects will receive a total of four cycles of CT-011 therapy. Each cycle consists of a dose of CT-011 given on days 1, 14, and 28 intravenously. Group 2: Subjects in this cohort will have chosen to undergo a debulking nephrectomy (surgery to remove a tumor of the kidney, but not all of the cancer cells in your body) as a standard treatment for kidney cancer or have tumor lesions that are accessible (may be removed without major surgery) and are being removed to treat or diagnose their cancer. All subjects in this group will receive infusions of CT-011 21 to 35 days following tumor resection. Subjects will receive a total of 4 cycles of CT-011 therapy. Each cycle consists of a dose of CT-011 given on days 1, 14, and 28. In addition they will receive a vaccination of the DC RCC vaccine on day 8 of each cycle.

Interventions

DRUGCT-011

CT-011 at 3 mg/kg IV for 4 cycles of 6 weeks

BIOLOGICALDC/RCC fusion vaccine

Vaccination once per cycle on Day 8 of treatment cycles 2-4

Sponsors

National Institutes of Health (NIH)
CollaboratorNIH
National Cancer Institute (NCI)
CollaboratorNIH
Beth Israel Deaconess Medical Center
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Stage IV renal cancer * Measurable disease * Life expectancy \> 3 months * Adequate organ and marrow function

Exclusion criteria

* Clinical evidence of central nervous system (CNS) disease. Subjects with a history of treated brain metastasis must be stable with no evidence of disease for 3 months * Clinically significant autoimmune disease * HIV+ * Serious intercurrent illness such as infection requiring intravenous (IV) antibiotics, or significant cardiac disease characterized by significant arrhythmia, uncontrolled hypertension, unstable ischemic coronary disease or congestive heart failure * Pregnant or lactating * History of clinically significant venous thromboembolism (For Cohort 2)

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Adverse Events2 yearsAssessment of toxicity associated with treating patients with metastatic RCC with CT-011 alone or CT-011 in conjunction with DC/RCC. Toxicity was assessed and classified according to CTCAE Version 4.0.
Number of Participants With PR or CR at 2 Years2 yearsTo evaluate the complete and partial response rate following completing 4 cycles of CT-011 alone or CT-011 in conjunction with DC/RCC fusion vaccine. Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by CT: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR. Progressive Disease (PD): At least a 20% increase in the sum of diameters of target lesions, (with an absolute increase of at least 5 mm), or the appearance of new lesions. Stable Disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as reference the smallest sum diameters while on study.

Secondary

MeasureTime frameDescription
Immunologic Response2 yearsTo evaluate immunologic response directed against RCC and tumor specific antigens following therapy with CT-011 alone or CT-011 in conjunction with DC/RCC fusion vaccine. Immunologic response will be characterized as peak response post-therapy and ongoing response at 3 and 6 months following treatment.
Effect on Circulating Regulatory T Cells2 yearsTo evaluate the effect of CT-011 alone or in conjunction with DC/RCC fusions on circulating regulatory T cells and PD-1 expression by circulating and bone marrow derived T cells.
Number of Participants Who Survived at 2 Years2 yearsTo evaluate overall survival following treatment with CT-011 alone or CT-011 in conjunction with DC/RCC fusion vaccine.

Countries

United States

Participant flow

Participants by arm

ArmCount
CT-011
CT-011 3 mg/kg for 4 cycles of 6 weeks CT-011: CT-011 at 3 mg/kg IV for 4 cycles of 6 weeks
11
CT-011 With DC/RCC Fusion Vaccine
CT-011 with DC/RCC fusion vaccine for subjects undergoing nephrectomy, resection of tumor tissue, or aspiration of malignant effusion CT-011: CT-011 at 3 mg/kg IV for 4 cycles of 6 weeks DC/RCC fusion vaccine: Vaccination once per cycle on Day 8 of treatment cycles 2-4
0
Total11

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath10

Baseline characteristics

CharacteristicTotalCT-011
Age, Categorical
<=18 years
0 Participants0 Participants
Age, Categorical
>=65 years
5 Participants5 Participants
Age, Categorical
Between 18 and 65 years
6 Participants6 Participants
Age, Continuous63 years63 years
Gender
Female
3 Participants3 Participants
Gender
Male
8 Participants8 Participants
Region of Enrollment
United States
11 participants11 participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
8 / 100 / 0
serious
Total, serious adverse events
0 / 100 / 0

Outcome results

Primary

Number of Participants With Adverse Events

Assessment of toxicity associated with treating patients with metastatic RCC with CT-011 alone or CT-011 in conjunction with DC/RCC. Toxicity was assessed and classified according to CTCAE Version 4.0.

Time frame: 2 years

ArmMeasureValue (NUMBER)
CT-011Number of Participants With Adverse Events8 participants
Primary

Number of Participants With PR or CR at 2 Years

To evaluate the complete and partial response rate following completing 4 cycles of CT-011 alone or CT-011 in conjunction with DC/RCC fusion vaccine. Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by CT: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR. Progressive Disease (PD): At least a 20% increase in the sum of diameters of target lesions, (with an absolute increase of at least 5 mm), or the appearance of new lesions. Stable Disease (SD): Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD, taking as reference the smallest sum diameters while on study.

Time frame: 2 years

ArmMeasureValue (NUMBER)
CT-011Number of Participants With PR or CR at 2 Years0 participants
Secondary

Effect on Circulating Regulatory T Cells

To evaluate the effect of CT-011 alone or in conjunction with DC/RCC fusions on circulating regulatory T cells and PD-1 expression by circulating and bone marrow derived T cells.

Time frame: 2 years

Population: Data was not analyzed as so few participants were enrolled and no participants achieved a PR.

Secondary

Immunologic Response

To evaluate immunologic response directed against RCC and tumor specific antigens following therapy with CT-011 alone or CT-011 in conjunction with DC/RCC fusion vaccine. Immunologic response will be characterized as peak response post-therapy and ongoing response at 3 and 6 months following treatment.

Time frame: 2 years

Population: Data was not analyzed as so few participants were enrolled and none of the participants achieved a PR or CR.

Secondary

Number of Participants Who Survived at 2 Years

To evaluate overall survival following treatment with CT-011 alone or CT-011 in conjunction with DC/RCC fusion vaccine.

Time frame: 2 years

ArmMeasureValue (NUMBER)
CT-011Number of Participants Who Survived at 2 Years4 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026