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αDC1 Vaccine + Chemokine Modulatory Regimen (CKM) as Adjuvant Treatment of Peritoneal Surface Malignancies

A Phase 1/2 Trial Evaluating αDC1 Vaccines Combined With Tumor-Selective Chemokine Modulation as Adjuvant Therapy After Surgical Resection of Peritoneal Surface Malignancies

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02151448
Enrollment
64
Registered
2014-05-30
Start date
2014-07-31
Completion date
2019-02-18
Last updated
2020-07-20

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

Conditions

Malignant Neoplasm of Pancreas Metastatic to Peritoneal Surface, Malignant Peritoneal Mesothelioma, Peritoneal Carcinomatosis

Brief summary

This trial is to determine the safest dose of a triple combination (chemokine modulatory regimen or CKM) of celecoxib, interferon alfa (IFN), and rintatolimod that can be given with a DC vaccine as treatment of peritoneal surface malignancies after standard of care surgery. The first phase of this study will determine the safest dose of IFN that can be given in combination with celecoxib and rintatolimod along with a DC vaccine. The doses of celecoxib (400 mg) and rintatolimod (200 mg) will be consistent while the dose of IFN will be increased (5, 10, or 20 MU/m2) as participants are enrolled to the trial. The high dose of IFN in combination with celecoxib and rintatolimod will be used for the next phase of the clinical trial. After surgery, participants will receive 2 cycles of the investigational treatment. The second phase of this study will test if the investigational treatment has any effects on peritoneal surface malignancies. The doses of the combination determined in the first phase will be used in this phase of the clinical trial. After surgery, participants will receive 2 cycles of the investigational treatment, followed by standard chemotherapy as determined by their oncologist, and then 2 more cycles of the investigational treatment.

Detailed description

This trial will evaluate the safety and effectiveness of autologous alpha-type-1 polarized dendritic cell (alpha-DC1) vaccines (patients' autologous alpha-DC1s loaded with autologous tumor material), combined with a systemic chemokine modulation regimen \[CKM; intravenous rintatolimod (TLR3 ligand, a derivative of Poly-I:C) + intravenous interferon-alfa + oral celecoxib\] as adjuvant therapy, after cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC), in patients with peritoneal surface malignancies (PSM), including but not limited to malignant peritoneal mesothelioma and peritoneal carcinomatosis (PC) of appendiceal and colorectal origin. All patients judged to have peritoneal surface malignancy and considered able to be cytoreduced to Peritoneal Cancer Index (PCI) Completeness of Cytoreduction (CC) score of 1 or less will undergo CRS + HIPEC. Postoperative immunotherapy will start at least 4 weeks after CRS + HIPEC. Immunotherapy regimen will include four cycles of intranodal (3M cells) and intradermal (3M cells) αDC1 vaccines. Each booster αDC1 vaccine dose (treatment cycles 2-4) will be followed by 4-days of systemic CKM, starting the day after vaccination (IFNα \[dose-escalation: 5-20 MU/m2\], intravenous \[IV\], once a day for 4 days; rintatolimod \[short-half-life TLR3 ligand\] 200 mg intravenous \[IV\], on Wednesday and Friday only of the CKM regimen; and celecoxib 200 mg, orally, twice a day for 4 days). In order to avoid overlap between experimental immunotherapy and potential adjuvant chemotherapy (which can be clinically indicated as a part of standard care in the subset of patients), the experimental treatments will be interrupted after cycles 1 and 2, to allow adjuvant chemotherapy that is done for each patient's clinical care, and is not a part of this research study. Whenever clinically indicated as a part of standard care, adjuvant chemotherapy may start at least 5 days after completion of the 2nd cycle of immunotherapy (first booster vaccine plus the first CKM). The 3rd cycle of immunotherapy may start at least 5 days after the completion of chemotherapy.

Interventions

BIOLOGICALDC vaccine

Administered on Monday of each cycle: 1 intranodal ultrasound-guided injection (target dose of 3 x 10e6 cells in 0.5 mL) + 1 intradermal injection (target dose of 3 x 10e6 cells in 0.5 mL)

DRUGCelecoxib

Administered at 200 mg, once a day orally, starting the day of the first DC vaccine through week 4/cycle 2. Participants will not take celecoxib while receiving standard of care chemotherapy as instructed by their local oncologist. Celecoxib will continue starting week 20/cycle 3 and continue until the Friday of the last day of the CKM administration, cycle 4. Administered at 400 mg, 200 mg twice a day orally, on days participants receive vaccine and CKM.

DRUGInterferon Alfa-2b

Intravenous infusion over 20 minutes: doses tested in Phase 1 portion (5, 10, or 20 MU/m2) will determine the Phase 2 dose. Administered on the Tuesday of each CKM cycle.

BIOLOGICALrintatolimod

Intravenous infusion of 200 mg on Wednesday and Friday only of the CKM regimen. The protocol allows for de-escalation to 100 mg if attributable adverse effects are observed.

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
David Bartlett
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients with histologically confirmed peritoneal surface malignancies, including but not limited to malignant peritoneal mesothelioma and peritoneal carcinomatosis (PC) from presumed appendiceal and colorectal primary tumors. Most patients will have received extensive prior treatments, due to the recurrent nature of PC. Prior therapies involve previous CRS, local and systemic chemotherapies. None of these prior treatments disqualifies the patient from receiving the protocol-mandated experimental treatment. * Patients must be deemed able to undergo optimal cytoreductive surgery (CRS) defined as CC-score of 0 or 1 based on imaging. Cytoreduction is defined as the burden of residual disease nodules left at the end of surgery (CC-0: no visible disease; CC-1: residual tumor nodules ≤ 2.5 mm in size; CC-2: residual tumor nodules 2.5 mm - 2.5 cm in size; CC-3: residual tumor nodules \> 2.5 cm in size). * Patients may be enrolled in the study regardless of prior chemotherapy regimens * An ECOG performance status of 0, 1 or 2 * Age equal to 18 years or older * Patients must be able to understand and be willing to sign a written informed consent document * Able to swallow pills * Must have normal organ and marrow function as defined below: Platelet ≥ 75,000/µL Hemoglobin ≥ 9.0 g/dL Hematocrit ≥ 27.0% Absolute Neutrophil Count (ANC) ≥ 1500/µL WBC \>2000/mm3 Creatinine \< 1.5 x institutional upper limit of normal (ULN), OR Creatinine clearance ≥ 50 mL/min/1.73 m2 for patients with creatinine levels greater than 1.5 x ULN Total bilirubin ≤ 1.5 x ULN AST(SGOT) and ALT(SGPT) ≤ 2.5 X ULN * Must be eligible for pheresis within 8 weeks of surgery * Availability of sufficient number of tumor cells for cryopreservation and subsequent vaccine production * Must have had HIPEC during surgery * Must have a CC score of 0

Exclusion criteria

* Infection of tumor tissue with pathogens resistant to radiation and fungizone * Patients on systemic immunosuppressive agents, including steroids. Patients who are able to be removed from immunosuppressives at least 5 days prior to the first vaccine will be considered eligible. * Patients with active autoimmune disease or history of transplantation. Patients with indolent or chronic autoimmune disease not requiring steroid treatment are considered eligible. * Patients who are pregnant or nursing * Patients experiencing a cardiac events (acute coronary syndrome, myocardial infarction, or ischemia) within the 3 months prior to accrual * Patients with a New York Heart Association classification of III or IV * Prior allergic reaction or hypersensitivity to celecoxib or NSAIDs

Design outcomes

Primary

MeasureTime frameDescription
Recommended Phase 2 Dose (RP2D) (Phase 1)Up to 24 weeksNumber of patients treated at each of the three possible dose levels of Interferon α (5 MU/m\^2, 10 MU/m\^2 or 20 MU/m\^2) during the Phase 1 portion of the study.
Adverse Events Possibly, Probably or Definitely Related to Study TreatmentUp to 24 weeksNumber of participants with adverse events (by Grade) that were possibly, probably or definitely related to the combined study immunotherapy regimen (αDC1 vaccines + CKM) per CTCAE v 4.0 (Common Terminology Criteria for Adverse Events).

Secondary

MeasureTime frameDescription
Progression-free Survival (PFS)Up to 5 yearsThe length of time during and after the treatment that patients remain alive with disease that does not progress. Per RECIST 1.1, Progressive Disease (PD): At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions is also considered progression).
CXCL10 (Interferon Gamma-induced Protein 10) LevelsPrior to vaccine administration (Week 1), prior to vaccine booster (Week 4) and after vaccine booster (Week 8)Chemokine CXCL10 (Interferon gamma-induced protein 10) concentration levels measures in peripheral blood as a biomarker of anti-tumor activity. Increased levels can be predictive of good prognosis.
CXCL11 (C-X-C Motif Chemokine 11) LevelsPrior to vaccine administration (Week 1), prior to vaccine booster (Week 4) and after vaccine booster (Week 8)CXCL11 (C-X-C motif chemokine 11) protein concentration levels measures in peripheral blood. Increased levels can be predictive of good prognosis.
Interleukin 10 (IL-10) LevelsPrior to vaccine administration (Week 1), prior to vaccine booster (Week 4) and after vaccine booster (Week 8)Interleukin 10 (IL-10) (human cytokine synthesis inhibitory factor (CSIF)) concentration levels measures in peripheral blood. Increased levels of IL-10 is associated with advanced disease and poor prognosis.
Time to Progression (TTP)Up to18 monthsThe length of time from the start of treatment until disease progression, per RECIST 1.1 considering only patients whose deaths were from cancer. Disease progression per RECIST 1.1 Progressive Disease (PD): At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions is also considered progression).
Interleukin-8 (IL-8) Cytokine LevelsPrior to vaccine administration (Week 1), prior to vaccine booster (Week 4) and after vaccine booster (Week 8)Interleukin-8 (IL-8) cytokine concentration levels measures in peripheral blood. Increased levels of IL-8 is associated with associated with advanced disease and poor prognosis.
Stromal Derived Factor 1 Alpha (SDF-1A/CXCL-12) Chemokine LevelsPrior to vaccine administration (Week 1), prior to vaccine booster (Week 4) and after vaccine booster (Week 8)Levels of stromal derived factor 1 alpha (SDF-1A/CXCL-12) chemokine in peripheral blood. Higher levels of SDF-1A/CXCL-12 is associated with good prognosis.
Tumor Necrosis Factor (TFNα) Cytokine LevelsPrior to vaccine administration (Week 1), prior to vaccine booster (Week 4) and after vaccine booster (Week 8)Tumor necrosis factor (TFNα) cytokine concentration levels measures in peripheral blood. Higher TFNα levels is associated with good prognosis.
Interleukin 6 (IL-6) Cytokine LevelsPrior to vaccine administration (Week 1), prior to vaccine booster (Week 4) and after vaccine booster (Week 8)Interleukin 6 (IL-6) concentration levels measures in peripheral blood. Increased levels of IL-6 is associated with associated with advanced disease and poor prognosis.
Overall Survival (OS)Up to 5 yearsThe length of time from the start of treatment that diagnosed patients are still alive.

Countries

United States

Participant flow

Participants by arm

ArmCount
α DC1 Vaccine + 1 Cycle of Chemokine Modulatory Regimen
Phase 1: α DC1 vaccine and Chemokine Modulatory Regimen: Celecoxib: Administered at 200 mg, once a day orally (T-TH) Rintatolimod: Intravenous infusion of 200 mg (Wed & and Fri, only) Interferon Alfa-2b: Intravenous infusion - 5 MU/m\^2 or 20 MU/m\^2 (T-Fri) Phase 2: α DC1 vaccine and Chemokine Modulatory Regimen: Celecoxib: Administered at 200 mg, once a day orally (T-TH) Rintatolimod: Intravenous infusion of 200 mg (Wed & and Fri, only) Interferon Alfa-2b: Intravenous infusion - 20 MU/m\^2 (T-Fri)
64
Total64

Baseline characteristics

Characteristicα DC1 Vaccine + 1 Cycle of Chemokine Modulatory Regimen
Age, Continuous53 years
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
63 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
2 Participants
Race (NIH/OMB)
Black or African American
1 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
61 Participants
Sex: Female, Male
Female
22 Participants
Sex: Female, Male
Male
42 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
23 / 64
other
Total, other adverse events
46 / 64
serious
Total, serious adverse events
17 / 64

Outcome results

Primary

Adverse Events Possibly, Probably or Definitely Related to Study Treatment

Number of participants with adverse events (by Grade) that were possibly, probably or definitely related to the combined study immunotherapy regimen (αDC1 vaccines + CKM) per CTCAE v 4.0 (Common Terminology Criteria for Adverse Events).

Time frame: Up to 24 weeks

Population: Patients treated with at least 1 course of α DC1 vaccine + 1 cycle of chemokine modulatory regimen who were evaluable for for completing surgery.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentAnemia : Grade 1-23 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentAnemia : Grade 3-41 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentBlurred vision : Grade 1-21 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentBlurred vision : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentBruising : Grade 1-21 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentBruising : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentChills : Grade 1-234 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentChills : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentDiarrhea : Grade 1-27 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentDiarrhea : Grade 3-41 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentDizziness : Grade 1-21 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentDizziness : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentEye disorders - Other, specify : Grade 1-20 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentEye disorders - Other, specify : Grade 3-41 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentFatigue : Grade 1-215 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentFatigue : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentFever : Grade 1-27 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentFever : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentFlu like symptoms : Grade 1-25 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentFlu like symptoms : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentFlushing : Grade 1-23 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentFlushing : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentGeneral disorders and administration : Grade 1-27 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentGeneral disorders and administration: Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentHeadache : Grade 1-210 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentHeadache : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentHeart failure : Grade 1-20 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentHeart failure : Grade 3-41 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentHypotension : Grade 1-21 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentHypotension : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentHypothyroidism : Grade 1-22 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentHypothyroidism : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentLymphocyte count decreased : Grade 1-24 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentLymphocyte count decreased : Grade 3-41 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentMyalgia : Grade 1-23 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentMyalgia : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentNausea : Grade 1-213 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentNausea : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentNeutrophil count decreased : Grade 1-23 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentNeutrophil count decreased : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentPain : Grade 1-26 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentPain : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentPlatelet count decreased : Grade 1-21 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentPlatelet count decreased : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentPleural effusion : Grade 1-21 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentPleural effusion : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentSerum amylase increased : Grade 1-21 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentSerum amylase increased : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentSinus bradycardia : Grade 1-22 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentSinus bradycardia : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentVomiting : Grade 1-27 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentVomiting : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentWeight gain : Grade 1-21 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentWeight gain : Grade 3-40 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentWhite blood cell decreased : Grade 1-23 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenAdverse Events Possibly, Probably or Definitely Related to Study TreatmentWhite blood cell decreased : Grade 3-40 Participants
Primary

Recommended Phase 2 Dose (RP2D) (Phase 1)

Number of patients treated at each of the three possible dose levels of Interferon α (5 MU/m\^2, 10 MU/m\^2 or 20 MU/m\^2) during the Phase 1 portion of the study.

Time frame: Up to 24 weeks

Population: Only includes patients participating in the Phase 1 portion.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenRecommended Phase 2 Dose (RP2D) (Phase 1)5 MU/M^2IFN alpha5 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenRecommended Phase 2 Dose (RP2D) (Phase 1)10 MU/M^2 IFN alpha0 Participants
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenRecommended Phase 2 Dose (RP2D) (Phase 1)20 MU/M^2IFN alpha (RP2D)4 Participants
Secondary

CXCL10 (Interferon Gamma-induced Protein 10) Levels

Chemokine CXCL10 (Interferon gamma-induced protein 10) concentration levels measures in peripheral blood as a biomarker of anti-tumor activity. Increased levels can be predictive of good prognosis.

Time frame: Prior to vaccine administration (Week 1), prior to vaccine booster (Week 4) and after vaccine booster (Week 8)

Population: Patients treated with at least 1 course of α DC1 vaccine + 1 cycle of chemokine modulatory regimen who were evaluable for completing surgery and response to treatment, and with ≥80% of samples available with measurable cytokine profiles via peripheral blood assay.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenCXCL10 (Interferon Gamma-induced Protein 10) LevelsPrior to vaccine administration (Week 1)1221.5 pg/mLStandard Deviation 135.4
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenCXCL10 (Interferon Gamma-induced Protein 10) LevelsPrior to vaccine booster (Week 4)16335.0 pg/mLStandard Deviation 59.3
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenCXCL10 (Interferon Gamma-induced Protein 10) LevelsAfter vaccine booster (Week 8)137.6 pg/mLStandard Deviation 17098.5
Secondary

CXCL11 (C-X-C Motif Chemokine 11) Levels

CXCL11 (C-X-C motif chemokine 11) protein concentration levels measures in peripheral blood. Increased levels can be predictive of good prognosis.

Time frame: Prior to vaccine administration (Week 1), prior to vaccine booster (Week 4) and after vaccine booster (Week 8)

Population: Patients treated with at least 1 course of α DC1 vaccine + 1 cycle of chemokine modulatory regimen who were evaluable for completing surgery and response to treatment, and with ≥80% of samples available with measurable cytokine profiles via peripheral blood assay.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenCXCL11 (C-X-C Motif Chemokine 11) LevelsPrior to vaccine administration (Week 1)359.4 pg/mLStandard Deviation 340.2
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenCXCL11 (C-X-C Motif Chemokine 11) LevelsPrior to vaccine booster (Week 4)12893.2 pg/mLStandard Deviation 190.3
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenCXCL11 (C-X-C Motif Chemokine 11) LevelsAfter vaccine booster (Week 8)208.9 pg/mLStandard Deviation 5717.1
Secondary

Interleukin 10 (IL-10) Levels

Interleukin 10 (IL-10) (human cytokine synthesis inhibitory factor (CSIF)) concentration levels measures in peripheral blood. Increased levels of IL-10 is associated with advanced disease and poor prognosis.

Time frame: Prior to vaccine administration (Week 1), prior to vaccine booster (Week 4) and after vaccine booster (Week 8)

Population: Patients treated with at least 1 course of α DC1 vaccine + 1 cycle of chemokine modulatory regimen who were evaluable for completing surgery and response to treatment, and with ≥80% of samples available with measurable cytokine profiles via peripheral blood assay.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenInterleukin 10 (IL-10) LevelsPrior to vaccine administration (Week 1)1.2 pg/mlStandard Deviation 2.4
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenInterleukin 10 (IL-10) LevelsPrior to vaccine booster (Week 4)7.9 pg/mlStandard Deviation 1.4
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenInterleukin 10 (IL-10) LevelsAfter vaccine booster (Week 8)7.5 pg/mlStandard Deviation 12.6
Secondary

Interleukin 6 (IL-6) Cytokine Levels

Interleukin 6 (IL-6) concentration levels measures in peripheral blood. Increased levels of IL-6 is associated with associated with advanced disease and poor prognosis.

Time frame: Prior to vaccine administration (Week 1), prior to vaccine booster (Week 4) and after vaccine booster (Week 8)

Population: Patients treated with at least 1 course of α DC1 vaccine + 1 cycle of chemokine modulatory regimen who were evaluable for completing surgery and response to treatment, and with ≥80% of samples available with measurable cytokine profiles via peripheral blood assay.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenInterleukin 6 (IL-6) Cytokine LevelsPrior to vaccine administration (Week 1)15.2 pg/mLStandard Deviation 10.7
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenInterleukin 6 (IL-6) Cytokine LevelsPrior to vaccine booster (Week 4)32.8 pg/mLStandard Deviation 19
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenInterleukin 6 (IL-6) Cytokine LevelsAfter vaccine booster (Week 8)11.1 pg/mLStandard Deviation 32.7
Secondary

Interleukin-8 (IL-8) Cytokine Levels

Interleukin-8 (IL-8) cytokine concentration levels measures in peripheral blood. Increased levels of IL-8 is associated with associated with advanced disease and poor prognosis.

Time frame: Prior to vaccine administration (Week 1), prior to vaccine booster (Week 4) and after vaccine booster (Week 8)

Population: Patients treated with at least 1 course of α DC1 vaccine + 1 cycle of chemokine modulatory regimen who were evaluable for completing surgery and response to treatment, and with ≥80% of samples available with measurable cytokine profiles via peripheral blood assay.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenInterleukin-8 (IL-8) Cytokine LevelsPrior to vaccine administration (Week 1)9.5 pg/mLStandard Deviation 15.7
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenInterleukin-8 (IL-8) Cytokine LevelsPrior to vaccine booster (Week 4)16.9 pg/mLStandard Deviation 5.4
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenInterleukin-8 (IL-8) Cytokine LevelsAfter vaccine booster (Week 8)28.6 pg/mLStandard Deviation 12.7
Secondary

Overall Survival (OS)

The length of time from the start of treatment that diagnosed patients are still alive.

Time frame: Up to 5 years

Population: Patients treated with at least 1 course of α DC1 vaccine + 1 cycle of chemokine modulatory regimen who were evaluable for completing surgery.

ArmMeasureValue (MEDIAN)
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenOverall Survival (OS)52 months
Secondary

Progression-free Survival (PFS)

The length of time during and after the treatment that patients remain alive with disease that does not progress. Per RECIST 1.1, Progressive Disease (PD): At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions is also considered progression).

Time frame: Up to 5 years

Population: Patients treated with at least 1 course of α DC1 vaccine + 1 cycle of chemokine modulatory regimen who were evaluable for completing surgery and response to treatment.

ArmMeasureGroupValue (MEDIAN)
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenProgression-free Survival (PFS)colon cancer19 months
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenProgression-free Survival (PFS)appendiceal cancer16 months
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenProgression-free Survival (PFS)MesotheliomaNA months
Secondary

Stromal Derived Factor 1 Alpha (SDF-1A/CXCL-12) Chemokine Levels

Levels of stromal derived factor 1 alpha (SDF-1A/CXCL-12) chemokine in peripheral blood. Higher levels of SDF-1A/CXCL-12 is associated with good prognosis.

Time frame: Prior to vaccine administration (Week 1), prior to vaccine booster (Week 4) and after vaccine booster (Week 8)

Population: Patients treated with at least 1 course of α DC1 vaccine + 1 cycle of chemokine modulatory regimen who were evaluable for completing surgery and response to treatment, and with ≥80% of samples available with measurable cytokine profiles via peripheral blood assay.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenStromal Derived Factor 1 Alpha (SDF-1A/CXCL-12) Chemokine LevelsPrior to vaccine administration (Week 1)1267.3 pg/mLStandard Deviation 5
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenStromal Derived Factor 1 Alpha (SDF-1A/CXCL-12) Chemokine LevelsPrior to vaccine booster (Week 4)2160.3 pg/mLStandard Deviation 476.8
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenStromal Derived Factor 1 Alpha (SDF-1A/CXCL-12) Chemokine LevelsAfter vaccine booster (Week 8)510.0 pg/mLStandard Deviation 852.2
Secondary

Time to Progression (TTP)

The length of time from the start of treatment until disease progression, per RECIST 1.1 considering only patients whose deaths were from cancer. Disease progression per RECIST 1.1 Progressive Disease (PD): At least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions is also considered progression).

Time frame: Up to18 months

Population: Patients treated with at least 1 course of α DC1 vaccine + 1 cycle of chemokine modulatory regimen who were evaluable for for completing surgery and response to treatment.

ArmMeasureValue (MEDIAN)
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenTime to Progression (TTP)15.9 months
Secondary

Tumor Necrosis Factor (TFNα) Cytokine Levels

Tumor necrosis factor (TFNα) cytokine concentration levels measures in peripheral blood. Higher TFNα levels is associated with good prognosis.

Time frame: Prior to vaccine administration (Week 1), prior to vaccine booster (Week 4) and after vaccine booster (Week 8)

Population: Patients treated with at least 1 course of α DC1 vaccine + 1 cycle of chemokine modulatory regimen who were evaluable for completing surgery and response to treatment, and with ≥80% of samples available with measurable cytokine profiles via peripheral blood assay.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenTumor Necrosis Factor (TFNα) Cytokine LevelsPrior to vaccine administration (Week 1)10.8 pg/mLStandard Deviation 12.2
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenTumor Necrosis Factor (TFNα) Cytokine LevelsPrior to vaccine booster (Week 4)31.0 pg/mLStandard Deviation 5
Phase 1- αDC1 Vaccine +1 Cycle of Chemokine Modulatory RegimenTumor Necrosis Factor (TFNα) Cytokine LevelsAfter vaccine booster (Week 8)17.2 pg/mLStandard Deviation 25.4

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026