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Adenoviral Vector Monotherapy or Combination With Chemotherapy in Subjects With Recurrent/Metastatic Breast Cancer.

A Phase II Randomized, Open Label Study of Ad-RTS-hIL-12 Monotherapy or Combination With Palifosfamide in Subjects With Recurrent/Metastatic Breast Cancer and Accessible Lesions

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01703754
Enrollment
12
Registered
2012-10-10
Start date
2013-04-04
Completion date
2014-08-07
Last updated
2025-08-28

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

Conditions

Breast Cancer Nos Metastatic Recurrent

Keywords

Genetically Modified Organism, Metastatic Breast Cancer, Recurrent Breast Cancer, Breast Cancer, Palifosfamide, INXN1001, INXN2001, Adenoviral vector

Brief summary

Phase II, randomized, safety and efficacy study in recurrent/metastatic breast cancer with accessible lesions. Primary End point is rate of Progression Free Survival (PFS) at the 16 week treatment time point. Hypothesis: Adenoviral vector (Ad-RTS-hIL-12) alone and in combination with chemotherapy (palifosfamide) is safe and efficacious.

Detailed description

Multicenter, open-label, randomized study evaluating the safety and efficacy of INXN-1001 (veledimex) and INXN-2001 (Ad-RTS-hIL-12) alone and in combination with palifosfamide. Part 1 is the safety run-in where a safety assessment will be made after 1 cycle of therapy. Part 2, eligible subjects will be randomly assigned to active treatment Arms A or C. Once the monotherapy (Arm A) is determined to be safe and tolerable, Part 1 combination therapy (Arm C) will begin. Subjects should receive six cycles of study treatment, in the absence of meeting withdrawal criteria.

Interventions

GENETICAd-RTS-hIL-12 and Veledimex

Oral activator ligand with adenoviral vector injection of cancer lesions

Small molecule chemotherapy, IV administration

Sponsors

Alaunos Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Males or females ≥ 18 years of age 2. Histologically or cytologically confirmed adenocarcinoma of the breast, either locally recurrent or metastatic disease with injectable lesions, for which no proven curative therapy exists. 3. Failed or progressed on at least 1 prior systemic chemotherapy regimen ± biologic/experimental therapy (if first-line therapy, failure or progression during the first 30 days). 4. Resolution of all treatment-related toxicities to Grade 1 severity or lower, except for stable sensory neuropathy ≤ Grade 2 and alopecia. 5. A minimum of 2 lesion(s) assessed by imaging using mRECIST v1.1. 6. Eastern Cooperative Oncology Group performance status 0, 1, 2 7. Male and female subjects must agree to use a highly reliable method of birth control. 8. Adequate bone marrow reserve as indicated by: 1. Absolute neutrophil count \> 1500/μL (without use of growth factors within 7 days) 2. Absolute lymphocyte count \> 700/μL (without use of growth factors within 7 days) 3. Platelet count \> 100,000/mm3 (without transfusion in prior 7 days) 4. Hemoglobin \> 9.0 g/dL (without transfusion in prior 7 days) 9. Estimated glomerular filtration rate using the Modification of Diet in Renal Disease equation: eGFR ≥ 60 mL/min/1.73 m2 10. Adequate liver function as evidenced by the following: 1. Bilirubin ≤ 1.5 times the upper limits of normal (ULN) 2. Alanine aminotransferase (ALT), and aspartate aminotransferase (AST) ≤ 2.5×ULN, in the case of liver metastases ≤ 5×ULN

Exclusion criteria

1. Subjects with human epidermal growth factor receptor 2 (HER2)/neu-positive (immunohistochemistry \[IHC\]) 3+ or fluorescence in situ hybridization-amplified) breast tumors who are eligible for, but who have not received HER2-targeted therapy (eg, trastuzumab) 2. Concomitant anticancer therapies 3. Prior therapies discontinuation periods: 1. Radiation within 3 weeks of enrollment 2. Chemotherapy within 4 weeks of enrollment 3. Nitrosoureas within 6 weeks of enrollment 4. Biologic therapy and/or immunomodulatory therapy, checkpoint inhibitors within 6 weeks of enrollment 5. No washout period is required for endocrine therapy 4. Radiation therapy encompassing \>25% of bone marrow 5. History of bone marrow or stem cell transplantation 6. Any congenital or acquired condition leading to inability to generate an immune response 7. Immunosuppressive therapy: 1. Systemic immunosuppressive drugs including corticosteroids (prednisone equivalent \>10 mg/day) 2. Immune suppression/requiring immunosuppressive drugs, including organ allografts 3. Active autoimmune disease requiring the equivalent of \>10 mg/day of prednisone 8. Major surgery within 4 weeks of study treatment 9. History of prior malignancy, unless the prior malignancy was diagnosed and definitively treated ≥5 years previously with no subsequent evidence of recurrence 10. Subjects with brain or subdural metastases, unless local therapy has completed and corticosteroids have been discontinued for this indication for ≥4 weeks before starting study treatment. 11. Any medications that induce, inhibit, or are substrates of cytochrome P450 (CYP450) 3A4 within 7 days prior to the first dose of study drug 12. Subjects with meningeal carcinomatosis 13. Known significant hypersensitivity to study drugs or excipients 14. History of malabsorption syndrome or other condition that would interfere with enteral absorption 15. International Normalized Ratio (INR) and activated partial thromboplastin time \[PTT\] \<1.5 x ULN, if not therapeutically anticoagulated. 16. New York Heart Association (NYHA) Class II or greater congestive heart failure OR active ventricular arrhythmia requiring medication 17. Any other unstable or clinically significant concurrent medical condition 18. Localized infection at site of injectable lesion(s) requiring antiinfective therapy within 2 weeks of the first dose of study drug.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Treatment-Emergent Adverse Events (TEAEs)16 monthsThis measure will capture the incidence of Treatment-Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs), and AEs leading to discontinuation. As per the protocol, safety and tolerability were assessed by monitoring adverse events, physical examinations, vital signs, electrocardiograms (ECGs), and clinical laboratory evaluations.
16-Week Progression-Free Survival (PFS) Rate16 weeksThis is the primary efficacy endpoint, defined as the proportion of subjects who had not progressed or died prior to 16 weeks from the date of their first dose. Progression was determined by modified Response Evaluation Criteria in Solid Tumors

Secondary

MeasureTime frameDescription
Area Under the Plasma Concentration-Time Curve From 0 to 24 Hours (AUC0-24) of INXN-1001Cycle 1 Day 1 and Cycle 1 Day 7The area under the plasma concentration versus time curve from time 0 to 24 hours (AUC0-24) for INXN-1001
Change From Baseline in MUC-1 Specific T-Cell Response by ELISPOT AssayScreening and the Post-Treatment Safety Assessment visit (28 days after the last dose of study drug), with the final assessment occurring up to 7 months after the start of treatment.To assess for a cellular immune response, the number of MUC-1 specific interferon-gamma (IFN-γ) secreting T-cells was measured from peripheral blood mononuclear cells (PBMCs) using an ELISPOT assay. Results are reported as spot-forming cells (SFC) per million PBMCs
Change From Baseline in Serum Interferon-gamma (IFN-γ) LevelsScreening, 24 hours after the first injection (Day 2), and at the Post-Treatment Safety Assessment visit, with the final assessment occurring up to 7 months after the start of treatment.Serum levels of IFN-γ were measured by immunoassay to assess the pharmacodynamic effect of the treatment
Change From Baseline in Serum Interleukin-12 (IL-12) LevelsScreening, 24 hours after the first injection (Day 2), and at the Post-Treatment Safety Assessment visit, with the final assessment occurring up to 7 months after the start of treatment.Serum levels of IL-12 were measured by immunoassay to assess the pharmacodynamic effect of the treatment
Best Overall Response (BOR) by mRECIST v1.124 weeksBest Overall Response (BOR) was determined for each evaluable subject up to their final tumor assessment. Per the modified Response Evaluation Criteria in Solid Tumors (mRECIST) v1.1, responses were defined as: Complete Response (CR), disappearance of all non-nodal target lesions and reduction in short axis of pathological lymph nodes to \<10 mm; Partial Response (PR), at least a 30% decrease in the sum of diameters of target lesions from baseline; Progressive Disease (PD), at least a 20% increase in the sum of diameters from the smallest sum recorded; Stable Disease (SD), neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD
Change From Baseline in CD3+ CD8+ T-Cell CountScreening, Cycle 1 the Post-Treatment Safety Assessment visit Day 28 ± 3, and Follow-Up Tumor Assessment visits Day 63 ± 7Absolute counts of CD3+ CD8+ cytotoxic T-cells in peripheral blood were measured by flow cytometry to evaluate changes in immune cell populations
Maximum Plasma Concentration (Cmax) of INXN-1001Cycle 1 Day 1 and Cycle 1 Day 7. On Day 1, samples were collected pre-dose and at 0.5, 1, 2, 4, and 6 hours post-dose. On Day 7, samples were collected pre-dose and at 1-2 and 4-6 hours post-doseThe maximum observed plasma concentration (Cmax) of INXN-1001 following oral administration.
Time to Maximum Plasma Concentration (Tmax) of INXN-1001Cycle 1 Day 1 and Cycle 1 Day 7The time to reach the maximum observed plasma concentration (Tmax) of INXN-1001 following oral administration
Clinical Benefit Rate (CBR)From the first dose of study treatment for up to 1 year.Clinical Benefit Rate (CBR) was a pre-specified secondary endpoint defined as the proportion of subjects with a best overall response of Complete Response (CR), Partial Response (PR), or Stable Disease (SD), as assessed by modified RECIST (mRECIST) v1.1.
Change From Baseline in CD3+ CD4+ T-Cell CountScreening, Cycle 1 the Post-Treatment Safety Assessment visit Day 28 ± 3, and Follow-Up Tumor Assessment visits Day 63 ± 7Absolute counts of CD3+ CD4+ helper T-cells in peripheral blood were measured by flow cytometry to evaluate changes in immune cell populations.
Estimate PFS by Modified RECIST v1.116 monthsProgression-free survival (PFS) is the time in days from the first dose of study treatment to the first assessment on which the response is reported as disease progression or death due to any cause (whichever is first) + 1 day. Subjects withdrawing from the study will be censored at their last non-progressive disease response assessment. If a subject does not have a disease response assessment, the subject will be censored on the date of the first treatment as described above. Kaplan-Meier plots will not be presented; PFS will be listed only.

Countries

United States

Participant flow

Pre-assignment details

Following the decision by the SRC the study will only collect data for the part 1, arm A group. Three dose level cohorts (140 mg, 100 mg, 80 mg) for INXN-1001 are used instead of the original single INXN-1001 dose level. Summaries that were based on part and treatment arm will instead be by dosage level of INXN-1001 where appropriate, with an overall group containing data from all dosage levels.

Participants by arm

ArmCount
Ad-RTS-hIL-12 + Veledimex 140 mg
Ad-RTS-hIL-12 by intratumoral injection + Veledimex 140 mg daily for 7 days every 21-day cycle
7
Ad-RTS-hIL-12 + Veledimex 100 mg Daily
Ad-RTS-hIL-12 by intratumoral injection + Veledimex 100 mg daily for 7 days every 21-day cycle
4
Ad-RTS-hIL-12 + Veledimex 80 mg Daily
Ad-RTS-hIL-12 by intratumoral injection + Veledimex 80mg daily for 7 days every 21-day cycle
1
Total12

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event110
Overall StudyClinically significant disease progression221
Overall StudyWithdrawal by Subject200

Baseline characteristics

CharacteristicAd-RTS-hIL-12 + Veledimex 140 mgTotalAd-RTS-hIL-12 + Veledimex 80 mg DailyAd-RTS-hIL-12 + Veledimex 100 mg Daily
Age, Continuous65.0 years62.5 years61.0 years58.0 years
BMI23.875 kg/m2
STANDARD_DEVIATION 4.7718
24.962 kg/m2
STANDARD_DEVIATION 4.6311
27.192 kg/m2
STANDARD_DEVIATION 0
26.306 kg/m2
STANDARD_DEVIATION 5.126
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
7 Participants12 Participants1 Participants4 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Height161.8 cm
STANDARD_DEVIATION 8.72
161.3 cm
STANDARD_DEVIATION 9.11
147.3 cm
STANDARD_DEVIATION 0
163.8 cm
STANDARD_DEVIATION 8.84
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants1 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
2 Participants3 Participants0 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
4 Participants8 Participants1 Participants3 Participants
Sex: Female, Male
Female
6 Participants11 Participants1 Participants4 Participants
Sex: Female, Male
Male
1 Participants1 Participants0 Participants0 Participants
Weight62.50 kg
STANDARD_DEVIATION 13.498
65.09 kg
STANDARD_DEVIATION 14.357
59.00 kg
STANDARD_DEVIATION 0
71.15 kg
STANDARD_DEVIATION 17.731

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 70 / 41 / 1
other
Total, other adverse events
7 / 74 / 41 / 1
serious
Total, serious adverse events
4 / 72 / 41 / 1

Outcome results

Primary

16-Week Progression-Free Survival (PFS) Rate

This is the primary efficacy endpoint, defined as the proportion of subjects who had not progressed or died prior to 16 weeks from the date of their first dose. Progression was determined by modified Response Evaluation Criteria in Solid Tumors

Time frame: 16 weeks

ArmMeasureValue (NUMBER)
Ad-RTS-hIL-12 + Veledimex 140 mg16-Week Progression-Free Survival (PFS) Rate2 participants
Ad-RTS-hIL-12 + Veledimex 100 mg Daily16-Week Progression-Free Survival (PFS) Rate1 participants
Ad-RTS-hIL-12 + Veledimex 80 mg Daily16-Week Progression-Free Survival (PFS) Rate0 participants
Primary

Number of Participants With Treatment-Emergent Adverse Events (TEAEs)

This measure will capture the incidence of Treatment-Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs), and AEs leading to discontinuation. As per the protocol, safety and tolerability were assessed by monitoring adverse events, physical examinations, vital signs, electrocardiograms (ECGs), and clinical laboratory evaluations.

Time frame: 16 months

Population: The Safety population is defined as all subjects who receive at least one dose of study treatment (veledemix capsule and/or an injection of Ad-RTS-hIL-12).

ArmMeasureGroupValue (NUMBER)
Ad-RTS-hIL-12 + Veledimex 140 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Serious TEAE3 participants
Ad-RTS-hIL-12 + Veledimex 140 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Treatment-related Grade 3 or higher TEAE5 participants
Ad-RTS-hIL-12 + Veledimex 140 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Grade 3 or higher TEAE6 participants
Ad-RTS-hIL-12 + Veledimex 140 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Any TEAE7 participants
Ad-RTS-hIL-12 + Veledimex 140 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)TEAE leading to discontinuation2 participants
Ad-RTS-hIL-12 + Veledimex 140 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)TEAE leading to death0 participants
Ad-RTS-hIL-12 + Veledimex 140 mgNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Treatment-related TEAE7 participants
Ad-RTS-hIL-12 + Veledimex 100 mg DailyNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Grade 3 or higher TEAE2 participants
Ad-RTS-hIL-12 + Veledimex 100 mg DailyNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Any TEAE4 participants
Ad-RTS-hIL-12 + Veledimex 100 mg DailyNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Serious TEAE2 participants
Ad-RTS-hIL-12 + Veledimex 100 mg DailyNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Treatment-related TEAE4 participants
Ad-RTS-hIL-12 + Veledimex 100 mg DailyNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Treatment-related Grade 3 or higher TEAE2 participants
Ad-RTS-hIL-12 + Veledimex 100 mg DailyNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)TEAE leading to death0 participants
Ad-RTS-hIL-12 + Veledimex 100 mg DailyNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)TEAE leading to discontinuation2 participants
Ad-RTS-hIL-12 + Veledimex 80 mg DailyNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Treatment-related Grade 3 or higher TEAE1 participants
Ad-RTS-hIL-12 + Veledimex 80 mg DailyNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Any TEAE1 participants
Ad-RTS-hIL-12 + Veledimex 80 mg DailyNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)TEAE leading to discontinuation1 participants
Ad-RTS-hIL-12 + Veledimex 80 mg DailyNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Serious TEAE1 participants
Ad-RTS-hIL-12 + Veledimex 80 mg DailyNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Grade 3 or higher TEAE1 participants
Ad-RTS-hIL-12 + Veledimex 80 mg DailyNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)Treatment-related TEAE1 participants
Ad-RTS-hIL-12 + Veledimex 80 mg DailyNumber of Participants With Treatment-Emergent Adverse Events (TEAEs)TEAE leading to death1 participants
Secondary

Area Under the Plasma Concentration-Time Curve From 0 to 24 Hours (AUC0-24) of INXN-1001

The area under the plasma concentration versus time curve from time 0 to 24 hours (AUC0-24) for INXN-1001

Time frame: Cycle 1 Day 1 and Cycle 1 Day 7

Population: The PK population includes all subjects in the Safety Run-in (Part 1) who had sufficient plasma concentration data to derive the specified parameter. The number of participants analyzed may be less than the total number in the arm due to missed PK sample collections or samples of insufficient quality for analysis

ArmMeasureGroupValue (MEAN)Dispersion
Ad-RTS-hIL-12 + Veledimex 140 mgArea Under the Plasma Concentration-Time Curve From 0 to 24 Hours (AUC0-24) of INXN-1001AUC0-24 (ng*h/mL) at C1D18103 ng*h/mLStandard Deviation 5200
Ad-RTS-hIL-12 + Veledimex 140 mgArea Under the Plasma Concentration-Time Curve From 0 to 24 Hours (AUC0-24) of INXN-1001AUC0-24 (ng*h/mL) at C1D719478 ng*h/mLStandard Deviation 2353
Ad-RTS-hIL-12 + Veledimex 140 mgArea Under the Plasma Concentration-Time Curve From 0 to 24 Hours (AUC0-24) of INXN-1001Dose-normalized m2/mg AUC0-24 (ng*h/mL) at C1D189.0 ng*h/mLStandard Deviation 36.1
Ad-RTS-hIL-12 + Veledimex 140 mgArea Under the Plasma Concentration-Time Curve From 0 to 24 Hours (AUC0-24) of INXN-1001Dose-normalized m2/mg AUC0-24 (ng*h/mL) at C1D7250.1 ng*h/mLStandard Deviation 101.4
Ad-RTS-hIL-12 + Veledimex 100 mg DailyArea Under the Plasma Concentration-Time Curve From 0 to 24 Hours (AUC0-24) of INXN-1001Dose-normalized m2/mg AUC0-24 (ng*h/mL) at C1D7193 ng*h/mLStandard Deviation 74
Ad-RTS-hIL-12 + Veledimex 100 mg DailyArea Under the Plasma Concentration-Time Curve From 0 to 24 Hours (AUC0-24) of INXN-1001AUC0-24 (ng*h/mL) at C1D15935 ng*h/mLStandard Deviation 2660
Ad-RTS-hIL-12 + Veledimex 100 mg DailyArea Under the Plasma Concentration-Time Curve From 0 to 24 Hours (AUC0-24) of INXN-1001Dose-normalized m2/mg AUC0-24 (ng*h/mL) at C1D1105 ng*h/mLStandard Deviation 16
Ad-RTS-hIL-12 + Veledimex 100 mg DailyArea Under the Plasma Concentration-Time Curve From 0 to 24 Hours (AUC0-24) of INXN-1001AUC0-24 (ng*h/mL) at C1D710334 ng*h/mLStandard Deviation 654
Ad-RTS-hIL-12 + Veledimex 80 mg DailyArea Under the Plasma Concentration-Time Curve From 0 to 24 Hours (AUC0-24) of INXN-1001Dose-normalized m2/mg AUC0-24 (ng*h/mL) at C1D7171 ng*h/mLStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 80 mg DailyArea Under the Plasma Concentration-Time Curve From 0 to 24 Hours (AUC0-24) of INXN-1001AUC0-24 (ng*h/mL) at C1D78604 ng*h/mLStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 80 mg DailyArea Under the Plasma Concentration-Time Curve From 0 to 24 Hours (AUC0-24) of INXN-1001Dose-normalized m2/mg AUC0-24 (ng*h/mL) at C1D1266 ng*h/mLStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 80 mg DailyArea Under the Plasma Concentration-Time Curve From 0 to 24 Hours (AUC0-24) of INXN-1001AUC0-24 (ng*h/mL) at C1D113350 ng*h/mLStandard Deviation 0
Secondary

Best Overall Response (BOR) by mRECIST v1.1

Best Overall Response (BOR) was determined for each evaluable subject up to their final tumor assessment. Per the modified Response Evaluation Criteria in Solid Tumors (mRECIST) v1.1, responses were defined as: Complete Response (CR), disappearance of all non-nodal target lesions and reduction in short axis of pathological lymph nodes to \<10 mm; Partial Response (PR), at least a 30% decrease in the sum of diameters of target lesions from baseline; Progressive Disease (PD), at least a 20% increase in the sum of diameters from the smallest sum recorded; Stable Disease (SD), neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD

Time frame: 24 weeks

Population: The Efficacy Evaluable population is defined as all subjects who receive at least one dose of study treatment (veledimex capsule and/or an injection of Ad-RTS-hIL-12) and have at least one post-screening mRECIST response evaluation.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Ad-RTS-hIL-12 + Veledimex 140 mgBest Overall Response (BOR) by mRECIST v1.1Best objective response of stable disease (SD)2 Participants
Ad-RTS-hIL-12 + Veledimex 140 mgBest Overall Response (BOR) by mRECIST v1.1Best objective response of unequivocal progression (UPD)2 Participants
Ad-RTS-hIL-12 + Veledimex 100 mg DailyBest Overall Response (BOR) by mRECIST v1.1Best objective response of stable disease (SD)1 Participants
Ad-RTS-hIL-12 + Veledimex 100 mg DailyBest Overall Response (BOR) by mRECIST v1.1Best objective response of unequivocal progression (UPD)2 Participants
Ad-RTS-hIL-12 + Veledimex 80 mg DailyBest Overall Response (BOR) by mRECIST v1.1Best objective response of stable disease (SD)0 Participants
Ad-RTS-hIL-12 + Veledimex 80 mg DailyBest Overall Response (BOR) by mRECIST v1.1Best objective response of unequivocal progression (UPD)1 Participants
Secondary

Change From Baseline in CD3+ CD4+ T-Cell Count

Absolute counts of CD3+ CD4+ helper T-cells in peripheral blood were measured by flow cytometry to evaluate changes in immune cell populations.

Time frame: Screening, Cycle 1 the Post-Treatment Safety Assessment visit Day 28 ± 3, and Follow-Up Tumor Assessment visits Day 63 ± 7

Population: The Efficacy Evaluable population included all subjects who received at least one dose of study treatment and had at least one post-screening mRECIST response evaluation. The number of participants analyzed for this specific biomarker may be less than the total number in the arm due to missed sample collections or samples of insufficient quality for analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Ad-RTS-hIL-12 + Veledimex 140 mgChange From Baseline in CD3+ CD4+ T-Cell CountFollow-up Tumor Assessment: CD3+CD4+ (cell/mcL)367.33 cell/mcLStandard Deviation 75.8
Ad-RTS-hIL-12 + Veledimex 140 mgChange From Baseline in CD3+ CD4+ T-Cell CountPost-treatment Safety Assessment::CD3+ CD4+(cell/mcL)337.75 cell/mcLStandard Deviation 155.513
Ad-RTS-hIL-12 + Veledimex 140 mgChange From Baseline in CD3+ CD4+ T-Cell CountScreening: CD3+CD4+ (cell/mcL)845 cell/mcLStandard Deviation 294.156
Ad-RTS-hIL-12 + Veledimex 100 mg DailyChange From Baseline in CD3+ CD4+ T-Cell CountFollow-up Tumor Assessment: CD3+CD4+ (cell/mcL)290 cell/mcLStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 100 mg DailyChange From Baseline in CD3+ CD4+ T-Cell CountScreening: CD3+CD4+ (cell/mcL)204.33 cell/mcLStandard Deviation 82.59
Ad-RTS-hIL-12 + Veledimex 100 mg DailyChange From Baseline in CD3+ CD4+ T-Cell CountPost-treatment Safety Assessment::CD3+ CD4+(cell/mcL)218.00 cell/mcLStandard Deviation 114.55
Ad-RTS-hIL-12 + Veledimex 80 mg DailyChange From Baseline in CD3+ CD4+ T-Cell CountScreening: CD3+CD4+ (cell/mcL)263 cell/mcLStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 80 mg DailyChange From Baseline in CD3+ CD4+ T-Cell CountPost-treatment Safety Assessment::CD3+ CD4+(cell/mcL)104 cell/mcLStandard Deviation 0
Secondary

Change From Baseline in CD3+ CD8+ T-Cell Count

Absolute counts of CD3+ CD8+ cytotoxic T-cells in peripheral blood were measured by flow cytometry to evaluate changes in immune cell populations

Time frame: Screening, Cycle 1 the Post-Treatment Safety Assessment visit Day 28 ± 3, and Follow-Up Tumor Assessment visits Day 63 ± 7

Population: The Efficacy Evaluable population included all subjects who received at least one dose of study treatment and had at least one post-screening mRECIST response evaluation. The number of participants analyzed for this specific biomarker may be less than the total number in the arm due to missed sample collections or samples of insufficient quality for analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Ad-RTS-hIL-12 + Veledimex 140 mgChange From Baseline in CD3+ CD8+ T-Cell CountPost-treatment Safety Assessment: CD3+CD8+ (cell/mcL)500.75 cell/mcLStandard Deviation 594.91
Ad-RTS-hIL-12 + Veledimex 140 mgChange From Baseline in CD3+ CD8+ T-Cell CountScreening: CD3+CD8+ (cell/mcL)1021 cell/mcLStandard Deviation 702.86
Ad-RTS-hIL-12 + Veledimex 140 mgChange From Baseline in CD3+ CD8+ T-Cell CountFollow-up Tumor Assessment: CD3+CD8+ (cell/mcL)527.67 cell/mcLStandard Deviation 441
Ad-RTS-hIL-12 + Veledimex 100 mg DailyChange From Baseline in CD3+ CD8+ T-Cell CountFollow-up Tumor Assessment: CD3+CD8+ (cell/mcL)150 cell/mcLStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 100 mg DailyChange From Baseline in CD3+ CD8+ T-Cell CountScreening: CD3+CD8+ (cell/mcL)168 cell/mcLStandard Deviation 87.88
Ad-RTS-hIL-12 + Veledimex 100 mg DailyChange From Baseline in CD3+ CD8+ T-Cell CountPost-treatment Safety Assessment: CD3+CD8+ (cell/mcL)252.5 cell/mcLStandard Deviation 106.77
Ad-RTS-hIL-12 + Veledimex 80 mg DailyChange From Baseline in CD3+ CD8+ T-Cell CountPost-treatment Safety Assessment: CD3+CD8+ (cell/mcL)159 cell/mcLStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 80 mg DailyChange From Baseline in CD3+ CD8+ T-Cell CountScreening: CD3+CD8+ (cell/mcL)558 cell/mcLStandard Deviation 0
Secondary

Change From Baseline in MUC-1 Specific T-Cell Response by ELISPOT Assay

To assess for a cellular immune response, the number of MUC-1 specific interferon-gamma (IFN-γ) secreting T-cells was measured from peripheral blood mononuclear cells (PBMCs) using an ELISPOT assay. Results are reported as spot-forming cells (SFC) per million PBMCs

Time frame: Screening and the Post-Treatment Safety Assessment visit (28 days after the last dose of study drug), with the final assessment occurring up to 7 months after the start of treatment.

Population: The Efficacy Evaluable population included all subjects who received at least one dose of study treatment and had at least one post-screening mRECIST response evaluation. The number of participants analyzed for this specific biomarker may be less than the total number in the arm due to missed sample collections or samples of insufficient quality for analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Ad-RTS-hIL-12 + Veledimex 140 mgChange From Baseline in MUC-1 Specific T-Cell Response by ELISPOT AssayScreening: Granzyme B ELISPOT Muc-1 (SFC/million PMBCs)35.17 SFC/million PMBCsStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 140 mgChange From Baseline in MUC-1 Specific T-Cell Response by ELISPOT AssayPost-treatment Safety Assessment: Granzyme B ELISPOT Muc-1 (SFC/million PMBCs)78.20 SFC/million PMBCsStandard Deviation 75.16
Ad-RTS-hIL-12 + Veledimex 100 mg DailyChange From Baseline in MUC-1 Specific T-Cell Response by ELISPOT AssayScreening: Granzyme B ELISPOT Muc-1 (SFC/million PMBCs)0 SFC/million PMBCsStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 100 mg DailyChange From Baseline in MUC-1 Specific T-Cell Response by ELISPOT AssayPost-treatment Safety Assessment: Granzyme B ELISPOT Muc-1 (SFC/million PMBCs)30 SFC/million PMBCsStandard Deviation 42.43
Ad-RTS-hIL-12 + Veledimex 80 mg DailyChange From Baseline in MUC-1 Specific T-Cell Response by ELISPOT AssayScreening: Granzyme B ELISPOT Muc-1 (SFC/million PMBCs)0 SFC/million PMBCsStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 80 mg DailyChange From Baseline in MUC-1 Specific T-Cell Response by ELISPOT AssayPost-treatment Safety Assessment: Granzyme B ELISPOT Muc-1 (SFC/million PMBCs)0 SFC/million PMBCsStandard Deviation 0
Secondary

Change From Baseline in Serum Interferon-gamma (IFN-γ) Levels

Serum levels of IFN-γ were measured by immunoassay to assess the pharmacodynamic effect of the treatment

Time frame: Screening, 24 hours after the first injection (Day 2), and at the Post-Treatment Safety Assessment visit, with the final assessment occurring up to 7 months after the start of treatment.

Population: The Efficacy Evaluable population included all subjects who received at least one dose of study treatment and had at least one post-screening mRECIST response evaluation. The number of participants analyzed for this specific biomarker may be less than the total number in the arm due to missed sample collections or samples of insufficient quality for analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Ad-RTS-hIL-12 + Veledimex 140 mgChange From Baseline in Serum Interferon-gamma (IFN-γ) LevelsPeak level in C1: IFN-gamma (pg/mL)354.84 pg/mLStandard Deviation 329.37
Ad-RTS-hIL-12 + Veledimex 140 mgChange From Baseline in Serum Interferon-gamma (IFN-γ) LevelsScreening: IFN-gamma (pg/mL)NA pg/mL
Ad-RTS-hIL-12 + Veledimex 140 mgChange From Baseline in Serum Interferon-gamma (IFN-γ) LevelsPost-treatment Safety Assessment: IFN-gamma (pg/mL)NA pg/mL
Ad-RTS-hIL-12 + Veledimex 100 mg DailyChange From Baseline in Serum Interferon-gamma (IFN-γ) LevelsPeak level in C1: IFN-gamma (pg/mL)309.4 pg/mLStandard Deviation 358.37
Ad-RTS-hIL-12 + Veledimex 100 mg DailyChange From Baseline in Serum Interferon-gamma (IFN-γ) LevelsScreening: IFN-gamma (pg/mL)NA pg/mL
Ad-RTS-hIL-12 + Veledimex 100 mg DailyChange From Baseline in Serum Interferon-gamma (IFN-γ) LevelsPost-treatment Safety Assessment: IFN-gamma (pg/mL)NA pg/mL
Ad-RTS-hIL-12 + Veledimex 80 mg DailyChange From Baseline in Serum Interferon-gamma (IFN-γ) LevelsScreening: IFN-gamma (pg/mL)NA pg/mL
Ad-RTS-hIL-12 + Veledimex 80 mg DailyChange From Baseline in Serum Interferon-gamma (IFN-γ) LevelsPost-treatment Safety Assessment: IFN-gamma (pg/mL)NA pg/mL
Ad-RTS-hIL-12 + Veledimex 80 mg DailyChange From Baseline in Serum Interferon-gamma (IFN-γ) LevelsPeak level in C1: IFN-gamma (pg/mL)68.1 pg/mLStandard Deviation 0
Secondary

Change From Baseline in Serum Interleukin-12 (IL-12) Levels

Serum levels of IL-12 were measured by immunoassay to assess the pharmacodynamic effect of the treatment

Time frame: Screening, 24 hours after the first injection (Day 2), and at the Post-Treatment Safety Assessment visit, with the final assessment occurring up to 7 months after the start of treatment.

Population: The Efficacy Evaluable population included all subjects who received at least one dose of study treatment and had at least one post-screening mRECIST response evaluation. The number of participants analyzed for this specific biomarker may be less than the total number in the arm due to missed sample collections or samples of insufficient quality for analysis.

ArmMeasureGroupValue (MEAN)Dispersion
Ad-RTS-hIL-12 + Veledimex 140 mgChange From Baseline in Serum Interleukin-12 (IL-12) LevelsPeak level in C1:IL-12 (pg/mL)33.8 pg/mLStandard Deviation 7.21
Ad-RTS-hIL-12 + Veledimex 140 mgChange From Baseline in Serum Interleukin-12 (IL-12) LevelsScreening:Interleukin-12(pg/mL)0.513 pg/mLStandard Deviation 0.409
Ad-RTS-hIL-12 + Veledimex 140 mgChange From Baseline in Serum Interleukin-12 (IL-12) LevelsPost-treatment Safety Assessment:Interleukin-12 (pg/mL)0.81 pg/mLStandard Deviation 0.854
Ad-RTS-hIL-12 + Veledimex 100 mg DailyChange From Baseline in Serum Interleukin-12 (IL-12) LevelsPeak level in C1:IL-12 (pg/mL)45.485 pg/mLStandard Deviation 15.264
Ad-RTS-hIL-12 + Veledimex 100 mg DailyChange From Baseline in Serum Interleukin-12 (IL-12) LevelsScreening:Interleukin-12(pg/mL)0.485 pg/mLStandard Deviation 0.341
Ad-RTS-hIL-12 + Veledimex 100 mg DailyChange From Baseline in Serum Interleukin-12 (IL-12) LevelsPost-treatment Safety Assessment:Interleukin-12 (pg/mL)1.38 pg/mLStandard Deviation 1.67
Ad-RTS-hIL-12 + Veledimex 80 mg DailyChange From Baseline in Serum Interleukin-12 (IL-12) LevelsScreening:Interleukin-12(pg/mL)1.25 pg/mLStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 80 mg DailyChange From Baseline in Serum Interleukin-12 (IL-12) LevelsPost-treatment Safety Assessment:Interleukin-12 (pg/mL)2.1 pg/mLStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 80 mg DailyChange From Baseline in Serum Interleukin-12 (IL-12) LevelsPeak level in C1:IL-12 (pg/mL)47.7 pg/mLStandard Deviation 0
Secondary

Clinical Benefit Rate (CBR)

Clinical Benefit Rate (CBR) was a pre-specified secondary endpoint defined as the proportion of subjects with a best overall response of Complete Response (CR), Partial Response (PR), or Stable Disease (SD), as assessed by modified RECIST (mRECIST) v1.1.

Time frame: From the first dose of study treatment for up to 1 year.

Population: The protocol pre-specified that the Clinical Benefit Rate (CBR) would be calculated. However, the final Statistical Analysis Plan states that due to the study's early termination and small sample size, this rate was not calculated. Best Overall Response for each individual subject was determined and is reported in a separate outcome measure.

Secondary

Estimate PFS by Modified RECIST v1.1

Progression-free survival (PFS) is the time in days from the first dose of study treatment to the first assessment on which the response is reported as disease progression or death due to any cause (whichever is first) + 1 day. Subjects withdrawing from the study will be censored at their last non-progressive disease response assessment. If a subject does not have a disease response assessment, the subject will be censored on the date of the first treatment as described above. Kaplan-Meier plots will not be presented; PFS will be listed only.

Time frame: 16 months

Population: The Efficacy Evaluable population is defined as all subjects who receive at least one dose of study treatment (veledimex capsule and/or an injection of Ad-RTS-hIL-12) and have at least one post-screening mRECIST response evaluation.

ArmMeasureValue (MEDIAN)
Ad-RTS-hIL-12 + Veledimex 140 mgEstimate PFS by Modified RECIST v1.194 Days
Ad-RTS-hIL-12 + Veledimex 100 mg DailyEstimate PFS by Modified RECIST v1.164 Days
Ad-RTS-hIL-12 + Veledimex 80 mg DailyEstimate PFS by Modified RECIST v1.11 Days
Secondary

Maximum Plasma Concentration (Cmax) of INXN-1001

The maximum observed plasma concentration (Cmax) of INXN-1001 following oral administration.

Time frame: Cycle 1 Day 1 and Cycle 1 Day 7. On Day 1, samples were collected pre-dose and at 0.5, 1, 2, 4, and 6 hours post-dose. On Day 7, samples were collected pre-dose and at 1-2 and 4-6 hours post-dose

Population: The PK population includes all subjects in the Safety Run-in (Part 1) who had sufficient plasma concentration data to derive the specified parameter. The number of participants analyzed may be less than the total number in the arm due to missed PK sample collections or samples of insufficient quality for analysis

ArmMeasureGroupValue (MEAN)Dispersion
Ad-RTS-hIL-12 + Veledimex 140 mgMaximum Plasma Concentration (Cmax) of INXN-1001Cmax (ng/mL) at C1D11024 ng/mLStandard Deviation 705
Ad-RTS-hIL-12 + Veledimex 140 mgMaximum Plasma Concentration (Cmax) of INXN-1001Cmax (ng/mL) at C1D71403 ng/mLStandard Deviation 55
Ad-RTS-hIL-12 + Veledimex 140 mgMaximum Plasma Concentration (Cmax) of INXN-1001Dose-normalized m2/mg Cmax (ng/mL) at C1D111.1 ng/mLStandard Deviation 5.5
Ad-RTS-hIL-12 + Veledimex 140 mgMaximum Plasma Concentration (Cmax) of INXN-1001Dose-normalized m2/mg Cmax (ng/mL) at C1D717.8 ng/mLStandard Deviation 6.3
Ad-RTS-hIL-12 + Veledimex 140 mgMaximum Plasma Concentration (Cmax) of INXN-1001C24h (ng/mL) at C1D173.9 ng/mLStandard Deviation 54
Ad-RTS-hIL-12 + Veledimex 140 mgMaximum Plasma Concentration (Cmax) of INXN-1001C24 (ng/mL) at C1D7251 ng/mLStandard Deviation 48.4
Ad-RTS-hIL-12 + Veledimex 100 mg DailyMaximum Plasma Concentration (Cmax) of INXN-1001C24 (ng/mL) at C1D7101 ng/mLStandard Deviation 28
Ad-RTS-hIL-12 + Veledimex 100 mg DailyMaximum Plasma Concentration (Cmax) of INXN-1001Cmax (ng/mL) at C1D1536 ng/mLStandard Deviation 218
Ad-RTS-hIL-12 + Veledimex 100 mg DailyMaximum Plasma Concentration (Cmax) of INXN-1001Dose-normalized m2/mg Cmax (ng/mL) at C1D713 ng/mLStandard Deviation 4
Ad-RTS-hIL-12 + Veledimex 100 mg DailyMaximum Plasma Concentration (Cmax) of INXN-1001C24h (ng/mL) at C1D139.7 ng/mLStandard Deviation 15.5
Ad-RTS-hIL-12 + Veledimex 100 mg DailyMaximum Plasma Concentration (Cmax) of INXN-1001Cmax (ng/mL) at C1D7706 ng/mLStandard Deviation 81
Ad-RTS-hIL-12 + Veledimex 100 mg DailyMaximum Plasma Concentration (Cmax) of INXN-1001Dose-normalized m2/mg Cmax (ng/mL) at C1D19.7 ng/mLStandard Deviation 2.6
Ad-RTS-hIL-12 + Veledimex 80 mg DailyMaximum Plasma Concentration (Cmax) of INXN-1001Cmax (ng/mL) at C1D7749 ng/mLStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 80 mg DailyMaximum Plasma Concentration (Cmax) of INXN-1001Dose-normalized m2/mg Cmax (ng/mL) at C1D122.5 ng/mLStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 80 mg DailyMaximum Plasma Concentration (Cmax) of INXN-1001C24 (ng/mL) at C1D799 ng/mLStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 80 mg DailyMaximum Plasma Concentration (Cmax) of INXN-1001Dose-normalized m2/mg Cmax (ng/mL) at C1D714.9 ng/mLStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 80 mg DailyMaximum Plasma Concentration (Cmax) of INXN-1001Cmax (ng/mL) at C1D11130 ng/mLStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 80 mg DailyMaximum Plasma Concentration (Cmax) of INXN-1001C24h (ng/mL) at C1D172 ng/mLStandard Deviation 0
Secondary

Time to Maximum Plasma Concentration (Tmax) of INXN-1001

The time to reach the maximum observed plasma concentration (Tmax) of INXN-1001 following oral administration

Time frame: Cycle 1 Day 1 and Cycle 1 Day 7

Population: The PK population includes all subjects in the Safety Run-in (Part 1) who had sufficient plasma concentration data to derive the specified parameter. The number of participants analyzed may be less than the total number in the arm due to missed PK sample collections or samples of insufficient quality for analysis

ArmMeasureGroupValue (MEAN)Dispersion
Ad-RTS-hIL-12 + Veledimex 140 mgTime to Maximum Plasma Concentration (Tmax) of INXN-1001Tmax (h) at C1D13.7 hoursStandard Deviation 1.4
Ad-RTS-hIL-12 + Veledimex 140 mgTime to Maximum Plasma Concentration (Tmax) of INXN-1001Tmax (h) at C1D73.3 hoursStandard Deviation 1.2
Ad-RTS-hIL-12 + Veledimex 100 mg DailyTime to Maximum Plasma Concentration (Tmax) of INXN-1001Tmax (h) at C1D14.8 hoursStandard Deviation 2.5
Ad-RTS-hIL-12 + Veledimex 100 mg DailyTime to Maximum Plasma Concentration (Tmax) of INXN-1001Tmax (h) at C1D73.0 hoursStandard Deviation 2
Ad-RTS-hIL-12 + Veledimex 80 mg DailyTime to Maximum Plasma Concentration (Tmax) of INXN-1001Tmax (h) at C1D14 hoursStandard Deviation 0
Ad-RTS-hIL-12 + Veledimex 80 mg DailyTime to Maximum Plasma Concentration (Tmax) of INXN-1001Tmax (h) at C1D71 hoursStandard Deviation 0

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