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Trial Investigating an Immunostimulatory Oncolytic Adenovirus for Cancer

Phase I/II Trial Investigating an Immunostimulatory Oncolytic Adenovirus for Cancer

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03225989
Enrollment
47
Registered
2017-07-21
Start date
2018-03-01
Completion date
2023-08-22
Last updated
2024-11-19

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

Conditions

Pancreatic Adenocarcinoma, Ovarian Cancer, Biliary Carcinoma, Colorectal Cancer

Brief summary

This Phase I/II trial evaluates LOAd703 in patients with cancer (pancreatic, biliary, colorectal or ovarian) together with their standard of care chemotherapy or using gemcitabine immune-conditioning. LOAd703 is administered by intratumoral image-guided injections. Maximum 50 patients can be enrolled. LOAd703 is an immunostimulatory gene therapy using an selection replication competent adenovirus as a gene vehicle. The virus is derived from serotype 5 adenovirus with the fiber from serotype 35. It expresses the transgenes trimerized membrane-bound isoleucine zipper (TMZ) TMZ-CD40L and 41BBL under control of a cytomegalovirus (CMV) promoter.

Detailed description

The trial is a Phase I/II trial evaluating the effect of LOAd703 in patients with pancreatic cancer, biliary cancer, ovarian cancer and colorectal cancer. LOAd703 is an oncolytic adenovirus serotype 5/35 encoding immunostimulatory transgenes: TMZ-CD40L and 41BBL. In Phase I, three doses (total viral load - 1x10e11, 5x10e11, 1x10e12 viral particles (VP)) of LOAd703 will be tested as add-on to standard of care or immune-conditioning gemcitabine chemotherapy. 8 treatments of LOAd703 will be delivered by image-guided intratumoral injection at the same time of chemotherapy. In Phase II stage of the study, patients will be treated at maximum tolerated dose/maximum tolerated study dose as defined in the Phase I stage. In both phases: tumor biopsies, blood samples and radiological imaging will be performed to evaluate safety, effect and mechanisms of action. Further, patients will be subjected to oral and rectal swabs, and urine sampling to determine virus shedding. The patients will be monitored for time to progression, progression free survival and overall survival.

Interventions

Oncolytic adenovirus serotype 5/35 encoding TMZ-CD40L and 4-1BBL

Sponsors

Uppsala University
CollaboratorOTHER
Lokon Pharma AB
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Participants treated with LOAd703 at three dose levels (5x10e10 VP, 1x10e11 VP, 5x10e11 VP) and SOC tailored to the indication

Eligibility

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

Inclusion criteria

1. Have histologic or cytologic evidence of colorectal carcinoma (CRC), pancreatic carcinoma (PC), biliary cancer, or epithelial ovarian carcinoma (EOC which may encompass epithelial ovarian, fallopian tube or primary peritoneal carcinoma). 2. Have advanced disease, defined as cancer that is either metastatic or locally advanced, unresectable, and for which radiotherapy or other locoregional therapies are not considered treatment of choice but systemic chemotherapy or no therapy is planned. 3. Have one of the following treatment situations apply: 1. Colorectal carcinoma (CRC) I. A patient with refractory or recurrent metastatic CRC who has either received all conventional therapy; or is entering a resting phase between reasonable conventional treatments. II. A patient who is amenable to treatment with LOAd703 plus gemcitabine as a single agent conditioning regimen. 2. Pancreatic cancer I. A patient with either locally advanced, unresectable or metastatic disease who is eligible to receive any line of conventional treatment consisting of gemcitabine and/or nab-paclitaxel. II. A patient who is amenable to treatment with LOAd703 as an add-on to standard-of-care gemcitabine-based or nab-paclitaxel- based regimens or gemcitabine or nab-paclitaxel as single agents. c. Biliary cancer I. A patient with either locally advanced unresectable or metastatic biliary cancer who is either treatment-naïve or has received any number of lines of treatment. II. Patient who is amenable to treatment with LOAd703 as an add-on to standard-of-care treatment consisting of gemcitabine combined with other agents (e.g. gemcitabine/low-dose cisplatin, gemcitabine/oxaliplatin, etc) in the first line setting or gemcitabine in a combination regimen or as a single agent in latter lines of treatment. d. Ovarian Cancer I. A patient with either epithelial ovarian, fallopian tube or primary peritoneal carcinoma. II. The patient has either: i) Residual disease following first-line standard-of-care combination chemotherapy. ii) Platinum-sensitive disease (platinum free interval ≥ 6 months) in early relapse following first-line standard-of care combination chemotherapy. iii) Platinum-resistant disease and received at least 3 lines of standard treatment. These treatments should have included bevacizumab and/or PARP inhibitors if they are reasonable candidates for such. III. Amenable to treatment with LOAd703 as an add-on to standard-of-care paclitaxel-based regimens (excluding bevacizumab), paclitaxel as a single agent, or gemcitabine as a single agent. 4. Have a disease burden that is considered low (i.e. low tumor burden), which is defined on a patient-by-patient basis as per principal investigator's discretion. A rough guideline for defining low tumor burden is that the sum of the product of the bidimensional measurements for all lesions is \< 70 cm2. 5. Have a measurable disease by standard imaging techniques per RECIST criteria. Measurable lesions must be outside of any prior radiation field(s), unless disease progression has been documented at that disease site subsequent to radiation. 6. At least one non-irradiated (or irradiated but disease progression documented at the site subsequent to radiation) lesion must be suitable for image-guided intratumoral injection and needle biopsy. 7. Be medically suited to sedation if required during intratumoral injections. 8. Be at least 18 years-old. 9. Eastern Cooperative Oncology Group (ECOG) performance status 0, 1 or 2. 10. Have no remaining acute toxic effects from previous anticancer therapy \> grade 1 except for any grade of alopecia. 11. Have adequate baseline organ/hematological function, as demonstrated by the following: 1. Absolute neutrophil count (ANC) ≥1.0 x 109/l 2. Hemoglobin ≥9 g/dl 3. Platelet count ≥ 100 x 109/l 4. Bilirubin \< 1.5 times the institutional upper limit of normal (ULN) 5. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) \<2.5 (3, if liver metastases are present) times the institutional ULN. 6. Serum creatinine \<2 times the institutional ULN or calculated creatinine clearance \>35 mL/min 7. Prothrombin (INR)\<1.5 or prothrombin time (PT) \<1.5 ULN; and either partial thromboplastin time or activated partial thromboplastin time (PTT or aPTT) ≤ 1.5 times the ULN. 12. The patient must understand and be willing to provide written informed consent.

Exclusion criteria

1. Any concurrent treatment that would compromise the study including but not limited to continuous high dose corticosteroids (\>0.5mg/kg), lymphodepleting antibodies or cytotoxic agents. 2. Treatment with high dose immune inhibitors including lymphotoxic monoclonal antibodies such as alemtuzumab (CampathR), or sirolimus (RapamuneR) and its analogs, biological therapy, cytotoxic agents or any investigational agents within 21 days of registration. 3. Ovarian carcinoma patients should not be eligible to PARP inhibitor treatment. 4. Patients on warfarin (or other anti-coagulants) are not eligible. 5. Women who are pregnant, lactating, or planning to become pregnant during the study period, or women of childbearing potential who are not using acceptable contraceptive methods. A woman is considered of childbearing potential if she is not surgically sterile or is less than 1 year since last menstrual period. Acceptable contraceptive methods are: combined (estrogen and progesterone containing) hormonal contraception associated with inhibition of ovulation (oral, intravaginal, transdermal), progesterone-only hormonal contraception associated with inhibition of ovulation (oral, injectable, implantable), intrauterine device, intrauterine hormone-releasing system, bilateral tubal occlusion and vasectomized partner. 6. Men who do not consent to the use of condom during intercourse during study participation. 7. Known active hepatitis B or C infection, or HIV infection. 8. Patients with active, severe, autoimmune disease. 9. Uncontrolled intercurrent illness including but not limited to psychiatric illness/social situations that in the opinion of the Investigator would compromise compliance of study requirements or put the patient at unacceptable risk. 10. Other malignancies within the past 2 years (not including basal and squamous cell carcinoma of the skin, localized prostate cancer or in situ cervix carcinoma). 11. Patients must agree to not to vaccinate with living vaccines during participation in the trial.

Design outcomes

Primary

MeasureTime frameDescription
Safety: Toxicity Symptoms Graded According to CTCAE v4.03.Up to 50 weeksThe toxicity symptoms were graded according to CTCAE v4.03.
Immune Reactions to LOAd703 Virus as Assessed by Anti-adenovirus Ig ELISAUp to 50 weeksFold change between baseline and evaluation visit for anti-adenovirus antibodies (LOAd703). The baseline is the last available measurement taken before the first LOAd703 treatment. Evaluation is a measurement taken from subjects receiving at least 3 LOAd703 treatments.

Secondary

MeasureTime frameDescription
Time to ProgressionFrom registration date to date of progression, assessed up to 40 monthsTime to progression from registration by dose and cancer diagnosis
Progression Free SurvivalFrom registration date to date of progression, or date of death, which ever came first, assessed up to 40 monthsMonths of progression free survival (PFS) from registration by dose and cancer diagnosis
Response on Tumor Size by Dose and Cancer DiagnosisUp to 50 weeksLocal and distant anti-tumoral size changes assessed by appropriate imaging accordingly to RECIST 1.1. Complete Response (CR), complete macroscopic disappearance of all tumors; Partial Response (PR), a reduction of at least 30% in the sum of all tumor diameters from baseline; one/more lesions fulfilling the criteria for PR and other/others for progressive disease (PD); Stable disease (SD), Neither PR nor PD; Progressive disease (PD), at least 20% increase in the sum of all tumor diameters from the smallest tumor size and/or the appearance of new tumor lesion/s; Overall response rate (ORR) = CR + PR; Clinical benefit rate (CBR) = CR + PR + SD.
Immune Cell ActivationUp to 50 weeksFold change between baseline and evaluation visit for CD8+ CD3+ T cells activation evaluated by flow cytometry. The baseline is the last available measurement taken before the first LOAd703 treatment. Evaluation is a measurement taken from subjects receiving at least 3 LOAd703 treatments.
Presence of LOAd703 Virus in BloodUp to 50 weeksPercentage of PK samples analyzed that were positive for viral DNA/ml in serum.
Systemic Immune ActivationUp to 50 weeksPercentage of participants with upregulated immune marker in blood at evaluation as compared to baseline. The baseline is the last available measurement taken before the first LOAd703 treatment. Evaluation is a measurement taken from subjects receiving at least 3 LOAd703 treatments.
Overall SurvivalFrom registration date to date of death, assessed up to 40 monthsMonths of overall survival (OS) from registration by dose and cancer diagnosis

Countries

Sweden

Participant flow

Pre-assignment details

Overall, a total of 47 subjects signed the informed consent, 5 out of 47 subjects were screening failures and 42 subjects were assigned to the study treatment (Group 1, 2 or 3). One subject was assigned to Group 3, but was not exposed to the study treatment.

Participants by arm

ArmCount
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the Indication
LOAd703 (5x10e10 VP) oncolytic adenovirus administered add-on to standard of care chemotherapy or gemcitabine immune-conditioning if standard of care is no longer an option (e.g. after last line) LOAd703: Oncolytic adenovirus serotype 5/35 encoding TMZ-CD40L and 4-1BBL
3
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the Indication
LOAd703 (1x10e11 VP) oncolytic adenovirus administered add-on to standard of care chemotherapy or gemcitabine immune-conditioning if standard of care is no longer an option (e.g. after last line) LOAd703: Oncolytic adenovirus serotype 5/35 encoding TMZ-CD40L and 4-1BBL
12
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the Indication
LOAd703 (5x10e11 VP) oncolytic adenovirus administered add-on to standard of care chemotherapy or gemcitabine immune-conditioning if standard of care is no longer an option (e.g. after last line) LOAd703: Oncolytic adenovirus serotype 5/35 encoding TMZ-CD40L and 4-1BBL
27
Total42

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Group 1: LOAd703 Dose Level 5x10e10VPProgressive Disease200
Group 2: LOAd703 Dose Level 1x10e11 VPAdverse Event010
Group 2: LOAd703 Dose Level 1x10e11 VPDeath010
Group 2: LOAd703 Dose Level 1x10e11 VPOther Reason010
Group 2: LOAd703 Dose Level 1x10e11 VPProgressive Disease070
Group 3: LOAd703 Dose Level 5x10e11VPAdverse Event002
Group 3: LOAd703 Dose Level 5x10e11VPDeath004
Group 3: LOAd703 Dose Level 5x10e11VPNot Exposed to LOAd703001
Group 3: LOAd703 Dose Level 5x10e11VPOther Reason001
Group 3: LOAd703 Dose Level 5x10e11VPPhysician Decision001
Group 3: LOAd703 Dose Level 5x10e11VPProgressive Disease0016
Group 3: LOAd703 Dose Level 5x10e11VPWithdrawal by Subject001

Baseline characteristics

CharacteristicTotalGroup 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationGroup 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationGroup 1 LOAd703 5x10e10 VP + SOC Tailored to the Indication
Age, Continuous62.5 years
STANDARD_DEVIATION 9.7
63.1 years
STANDARD_DEVIATION 8.1
62.9 years
STANDARD_DEVIATION 12.4
55.7 years
STANDARD_DEVIATION 12.7
Cancer Diagnosis
Biliary cancer
3 participants3 participants0 participants0 participants
Cancer Diagnosis
Colorectal carcinoma
5 participants1 participants2 participants2 participants
Cancer Diagnosis
Ovarian cancer
5 participants4 participants1 participants0 participants
Cancer Diagnosis
Pancreatic cancer
29 participants19 participants9 participants1 participants
Current oncological disease
Locally advanced
8 participants4 participants4 participants0 participants
Current oncological disease
Metastatic
34 participants23 participants8 participants3 participants
ECOG score
ECOG score 0
26 participants21 participants4 participants1 participants
ECOG score
ECOG score 1
15 participants6 participants7 participants2 participants
ECOG score
ECOG score 2
1 participants0 participants1 participants0 participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 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
42 Participants27 Participants12 Participants3 Participants
Region of Enrollment
Sweden
42 participants27 participants12 participants3 participants
Sex: Female, Male
Female
23 Participants17 Participants6 Participants0 Participants
Sex: Female, Male
Male
19 Participants10 Participants6 Participants3 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
3 / 310 / 1223 / 26
other
Total, other adverse events
3 / 311 / 1226 / 26
serious
Total, serious adverse events
3 / 312 / 1220 / 26

Outcome results

Primary

Immune Reactions to LOAd703 Virus as Assessed by Anti-adenovirus Ig ELISA

Fold change between baseline and evaluation visit for anti-adenovirus antibodies (LOAd703). The baseline is the last available measurement taken before the first LOAd703 treatment. Evaluation is a measurement taken from subjects receiving at least 3 LOAd703 treatments.

Time frame: Up to 50 weeks

ArmMeasureValue (MEAN)Dispersion
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationImmune Reactions to LOAd703 Virus as Assessed by Anti-adenovirus Ig ELISA41.63 fold changeStandard Deviation 8.39
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationImmune Reactions to LOAd703 Virus as Assessed by Anti-adenovirus Ig ELISA15.81 fold changeStandard Deviation 10.33
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationImmune Reactions to LOAd703 Virus as Assessed by Anti-adenovirus Ig ELISA31.77 fold changeStandard Deviation 24.31
Primary

Safety: Toxicity Symptoms Graded According to CTCAE v4.03.

The toxicity symptoms were graded according to CTCAE v4.03.

Time frame: Up to 50 weeks

Population: Overall, a total of 42 subjects were assigned to the study treatment, 1 out of 42 did not receive the study treatment and it was not included in the safety evaluation. The subject who did not receive the study treatment was assigned to group 3.

ArmMeasureGroupValue (NUMBER)
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.All serious adverse events (SAEs)7 Number of Events
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE leading to LOAd703 discontinuation0 Number of Events
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd703 grade 50 Number of Events
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.All adverse events (AE)61 Number of Events
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE leading to death0 Number of Events
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd703 grade 40 Number of Events
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE unrelated to LOAd70332 Number of Events
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd70329 Number of Events
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd703 grade 115 Number of Events
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd703 grade 30 Number of Events
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.Serious adverse reactions (SARs) related to LOAd7033 Number of Events
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd703 grade 214 Number of Events
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE leading to withdrawal from the study0 Number of Events
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd703 grade 23 Number of Events
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd703 grade 30 Number of Events
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd703 grade 41 Number of Events
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd703 grade 50 Number of Events
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE leading to withdrawal from the study1 Number of Events
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE unrelated to LOAd703106 Number of Events
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd70333 Number of Events
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE leading to LOAd703 discontinuation2 Number of Events
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.All serious adverse events (SAEs)31 Number of Events
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE leading to death0 Number of Events
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.All adverse events (AE)139 Number of Events
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd703 grade 129 Number of Events
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.Serious adverse reactions (SARs) related to LOAd7034 Number of Events
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE unrelated to LOAd703242 Number of Events
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd703169 Number of Events
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.All adverse events (AE)411 Number of Events
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.All serious adverse events (SAEs)63 Number of Events
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.Serious adverse reactions (SARs) related to LOAd70321 Number of Events
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE leading to withdrawal from the study2 Number of Events
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE leading to LOAd703 discontinuation6 Number of Events
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE leading to death1 Number of Events
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd703 grade 1111 Number of Events
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd703 grade 252 Number of Events
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd703 grade 36 Number of Events
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd703 grade 40 Number of Events
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationSafety: Toxicity Symptoms Graded According to CTCAE v4.03.AE related to LOAd703 grade 50 Number of Events
Secondary

Immune Cell Activation

Fold change between baseline and evaluation visit for CD8+ CD3+ T cells activation evaluated by flow cytometry. The baseline is the last available measurement taken before the first LOAd703 treatment. Evaluation is a measurement taken from subjects receiving at least 3 LOAd703 treatments.

Time frame: Up to 50 weeks

ArmMeasureValue (MEAN)Dispersion
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationImmune Cell Activation1.01 fold changeStandard Deviation 0.39
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationImmune Cell Activation1.19 fold changeStandard Deviation 0.32
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationImmune Cell Activation1.17 fold changeStandard Deviation 0.48
Secondary

Overall Survival

Months of overall survival (OS) from registration by dose and cancer diagnosis

Time frame: From registration date to date of death, assessed up to 40 months

Population: OS was evaluated in participants who have received at least 3 doses of LOAd703 and performed computed tomography (CT) evaluation at baseline and at week 9 (Visit 5). Group 1 (5x10e10 VP): all the 3 participants met the criteria to be included in this analysis; Group 2 (1x10e11 VP): from a total of 12 participants, 10 met the criteria to be included in this analysis; Group 3 (5x10e11 VP): from a total of 27 participants, 22 met the criteria to be included in this analysis.

ArmMeasureValue (MEDIAN)
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationOverall Survival4.40 Months
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationOverall Survival8.44 Months
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationOverall Survival7.38 Months
Colorectal CancerOverall Survival5.36 Months
Biliary CancerOverall Survival6.64 Months
Pancreatic CancerOverall Survival7.29 Months
Ovarian CancerOverall Survival40.54 Months
Secondary

Presence of LOAd703 Virus in Blood

Percentage of PK samples analyzed that were positive for viral DNA/ml in serum.

Time frame: Up to 50 weeks

ArmMeasureValue (NUMBER)
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationPresence of LOAd703 Virus in Blood22.22 Percentage of positive samples
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationPresence of LOAd703 Virus in Blood16.13 Percentage of positive samples
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationPresence of LOAd703 Virus in Blood35.48 Percentage of positive samples
Secondary

Progression Free Survival

Months of progression free survival (PFS) from registration by dose and cancer diagnosis

Time frame: From registration date to date of progression, or date of death, which ever came first, assessed up to 40 months

Population: PFS was evaluated in participants who have received at least 3 doses of LOAd703 and performed computed tomography (CT) evaluation at baseline and at week 9 (Visit 5). Group 1 (5x10e10 VP): all the 3 participants met the criteria to be included in this analysis; Group 2 (1x10e11 VP): from a total of 12 participants, 10 met the criteria to be included in this analysis; Group 3 (5x10e11 VP): from a total of 27 participants, 22 met the criteria to be included in this analysis.

ArmMeasureValue (MEDIAN)
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationProgression Free Survival2.40 Months
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationProgression Free Survival3.79 Months
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationProgression Free Survival4.32 Months
Colorectal CancerProgression Free Survival2.40 Months
Biliary CancerProgression Free Survival1.81 Months
Pancreatic CancerProgression Free Survival4.62 Months
Ovarian CancerProgression Free Survival3.88 Months
Secondary

Response on Tumor Size by Dose and Cancer Diagnosis

Local and distant anti-tumoral size changes assessed by appropriate imaging accordingly to RECIST 1.1. Complete Response (CR), complete macroscopic disappearance of all tumors; Partial Response (PR), a reduction of at least 30% in the sum of all tumor diameters from baseline; one/more lesions fulfilling the criteria for PR and other/others for progressive disease (PD); Stable disease (SD), Neither PR nor PD; Progressive disease (PD), at least 20% increase in the sum of all tumor diameters from the smallest tumor size and/or the appearance of new tumor lesion/s; Overall response rate (ORR) = CR + PR; Clinical benefit rate (CBR) = CR + PR + SD.

Time frame: Up to 50 weeks

Population: Response on tumor size was evaluated in participants who have received at least 3 doses of LOAd703 and performed computed tomography (CT) evaluation at baseline and at week 9 (Visit 5). Group 1 (5x10e10 VP): all the 3 participants met the criteria to be included in this analysis; Group 2 (1x10e11 VP): from a total of 12 participants, 10 met the criteria to be included in this analysis; Group 3 (5x10e11 VP): from a total of 27 participants, 22 met the criteria to be included in this analysis.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisClinical benefit rate (CBR)1 Participants
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisOverall response rate (ORR)0 Participants
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisPartial response (PR)0 Participants
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisComplete response (CR)0 Participants
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisStable disease (SD)1 Participants
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisProgressive disease (PD)2 Participants
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisPartial response (PR)3 Participants
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisProgressive disease (PD)3 Participants
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisComplete response (CR)0 Participants
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisClinical benefit rate (CBR)7 Participants
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisOverall response rate (ORR)3 Participants
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisStable disease (SD)4 Participants
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisStable disease (SD)11 Participants
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisOverall response rate (ORR)3 Participants
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisProgressive disease (PD)8 Participants
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisComplete response (CR)0 Participants
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisPartial response (PR)3 Participants
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationResponse on Tumor Size by Dose and Cancer DiagnosisClinical benefit rate (CBR)14 Participants
Colorectal CancerResponse on Tumor Size by Dose and Cancer DiagnosisComplete response (CR)0 Participants
Colorectal CancerResponse on Tumor Size by Dose and Cancer DiagnosisPartial response (PR)0 Participants
Colorectal CancerResponse on Tumor Size by Dose and Cancer DiagnosisStable disease (SD)2 Participants
Colorectal CancerResponse on Tumor Size by Dose and Cancer DiagnosisProgressive disease (PD)3 Participants
Colorectal CancerResponse on Tumor Size by Dose and Cancer DiagnosisOverall response rate (ORR)0 Participants
Colorectal CancerResponse on Tumor Size by Dose and Cancer DiagnosisClinical benefit rate (CBR)2 Participants
Biliary CancerResponse on Tumor Size by Dose and Cancer DiagnosisStable disease (SD)1 Participants
Biliary CancerResponse on Tumor Size by Dose and Cancer DiagnosisClinical benefit rate (CBR)1 Participants
Biliary CancerResponse on Tumor Size by Dose and Cancer DiagnosisProgressive disease (PD)2 Participants
Biliary CancerResponse on Tumor Size by Dose and Cancer DiagnosisPartial response (PR)0 Participants
Biliary CancerResponse on Tumor Size by Dose and Cancer DiagnosisOverall response rate (ORR)0 Participants
Biliary CancerResponse on Tumor Size by Dose and Cancer DiagnosisComplete response (CR)0 Participants
Pancreatic CancerResponse on Tumor Size by Dose and Cancer DiagnosisClinical benefit rate (CBR)17 Participants
Pancreatic CancerResponse on Tumor Size by Dose and Cancer DiagnosisStable disease (SD)11 Participants
Pancreatic CancerResponse on Tumor Size by Dose and Cancer DiagnosisOverall response rate (ORR)6 Participants
Pancreatic CancerResponse on Tumor Size by Dose and Cancer DiagnosisProgressive disease (PD)7 Participants
Pancreatic CancerResponse on Tumor Size by Dose and Cancer DiagnosisComplete response (CR)0 Participants
Pancreatic CancerResponse on Tumor Size by Dose and Cancer DiagnosisPartial response (PR)6 Participants
Ovarian CancerResponse on Tumor Size by Dose and Cancer DiagnosisPartial response (PR)0 Participants
Ovarian CancerResponse on Tumor Size by Dose and Cancer DiagnosisComplete response (CR)0 Participants
Ovarian CancerResponse on Tumor Size by Dose and Cancer DiagnosisStable disease (SD)2 Participants
Ovarian CancerResponse on Tumor Size by Dose and Cancer DiagnosisOverall response rate (ORR)0 Participants
Ovarian CancerResponse on Tumor Size by Dose and Cancer DiagnosisClinical benefit rate (CBR)2 Participants
Ovarian CancerResponse on Tumor Size by Dose and Cancer DiagnosisProgressive disease (PD)1 Participants
Secondary

Systemic Immune Activation

Percentage of participants with upregulated immune marker in blood at evaluation as compared to baseline. The baseline is the last available measurement taken before the first LOAd703 treatment. Evaluation is a measurement taken from subjects receiving at least 3 LOAd703 treatments.

Time frame: Up to 50 weeks

ArmMeasureValue (NUMBER)
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationSystemic Immune Activation100 Percentage of Participants
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationSystemic Immune Activation100 Percentage of Participants
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationSystemic Immune Activation100 Percentage of Participants
Secondary

Time to Progression

Time to progression from registration by dose and cancer diagnosis

Time frame: From registration date to date of progression, assessed up to 40 months

Population: Time to progression was evaluated in participants who have received at least 3 doses of LOAd703 and performed computed tomography (CT) evaluation at baseline and at week 9 (Visit 5). Group 1 (5x10e10 VP): all the 3 participants met the criteria to be included in this analysis; Group 2 (1x10e11 VP): from a total of 12 participants, 10 met the criteria to be included in this analysis; Group 3 (5x10e11 VP): from a total of 27 participants, 22 met the criteria to be included in this analysis.

ArmMeasureValue (MEDIAN)
Group 1 LOAd703 5x10e10 VP + SOC Tailored to the IndicationTime to Progression2.40 Months
Group 2 LOAd703 1x10e11 VP + SOC Tailored to the IndicationTime to Progression3.79 Months
Group 3 LOAd703 5x10e11 VP + SOC Tailored to the IndicationTime to Progression3.88 Months
Colorectal CancerTime to Progression2.40 Months
Biliary CancerTime to Progression1.81 Months
Pancreatic CancerTime to Progression3.75 Months
Ovarian CancerTime to Progression3.88 Months

Source: ClinicalTrials.gov · Data processed: Feb 14, 2026