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Efficacy of Plasmid Elenagen in Combination With Gemcitabine in Patients With Platinum-resistant Ovarian Cancer

Open Label Randomized Clinical Study of Plasmid Encoding p62/SQSTM1 (ELenagen) in in Combination With Gemcitabine in Patients With Platinum-resistant Ovarian Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05979298
Enrollment
40
Registered
2023-08-07
Start date
2019-11-15
Completion date
2023-12-30
Last updated
2026-08-24

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

Conditions

Ovarian Cancer, Platinum-resistant Ovarian Cancer

Brief summary

Phase II, two arm prospective study of efficacy and safety of ELENAGEN in combination with gemcitabine in comparison with gemcitabine alone in patients with platinum-resistant ovarian cancer.

Detailed description

The purpose of this clinical study is to evaluate safety and efficacy of ELENAGEN, a novel anticancer therapeutics (plasmid DNA encoding p62/SQSTM1) protein, as an adjuvant to chemotherapy with Gemcitabin (GEM) in patients with advanced platinum-resistant ovarian cancer. This is a prospective randomized multi-center study with two arms. Gemcitabine 1000 mg/m2 days 1,8 every 3 weeks) is administered in both arms: In the Chemo arm (n = 20) Gemcitabine is the only treatment, and in the ELENAGEN arm (n = 20) GEM was supplemented with ELENAGEN (2.5 mg i.m. weekly). The primary endpoint is progression-free survival (PFS), and the secondary endpoint is safety.

Interventions

DRUGGemcitabine

Chemotherapeutics

BIOLOGICALELENAGEN

DNA plasmid

Sponsors

CureLab Oncology
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

This was a prospective randomized multi-center study with two arms. Gemcitabine 1000 mg/m2 days 1,8 every 3 weeks) was administered in both arms: In the Chemo arm (n = 20) GEM was the only treatment, and in the ELENAGEN arm (n = 20) GEM was supplemented with ELENAGEN (2.5 mg i.m. weekly).

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* The patient is 18-70 years old. * Written informed consent of the patient to participate in clinical trials. * Presence of histologically confirmed ovarian cancer. * The return of the disease occurred less than 6 months after the last administration of platinum. * Presence of measurable tumor lesions according to RECIST 1.1 criteria. * Functional status according to ECOG scale is 0-2. * Life expectancy of at least 6 months. * Adequate function of the organs as determined by the following criteria: 1. Absolute number of neutrophils (ANN) ≥1500/mm3 (≥1.5 × 109/l); 2. Platelet count ≥100,000/mm3 (IU: ≥100 × 109/l). 3. Hemoglobin level ≥ 9.0 g/dL determined by analysis performed at least 2 weeks after the last hemotransfusion; 4. The level of AST and ALT in blood serum not exceeding more than 3 times the upper limit of the norm. 5. The level of serum bilirubin not exceeding more than 1.5 times the upper limit of normal. 6. Serum Creatinine ≤ 1.5 mg/dL. * The ability of the patient to follow the directions of the research physician and follow the study regimen.

Exclusion criteria

Criteria by which patients are not included in the study * Platinum-sensitive relapse of ovarian cancer (disease recurrence occurred more than 6 months after the last administration of platinum drugs). * Presence of serious diseases or health conditions: 1. Other malignancies, with the exception of malignancies treated more than 5 years ago without signs of return of the disease. 2. Brain metastases or leptomeningeal metastases. 3. Active infection (e.g. fever ≥38 °C), including active or unresolved pneumonia/pneumonitis. 4. Uncontrolled diabetes mellitus. 5. Myocardial Infarction in the last 12 months, severe/unstable angina, clinically manifested heart failure class III-IV according to the classification of the New York Cardiology Association (NYCA). 6. Gastrointestinal bleeding within the last 2 weeks. 7. Human immunodeficiency virus (HIV), chronic or acute hepatitis B or hepatitis C. 8. Patients with autoimmune disorders or organ transplantation who require immunosuppressive therapy. I. Mental illness that may increase the risk associated with participation in the study or taking the study drug or that may affect the interpretation of the results of the study. K. Polyallergy, bronchial asthma (including aspirin) in history. * Major surgery during the previous 4 weeks (complete wound healing). * Previous chemotherapeutic treatment of the patient according to the scheme GEMCITABINE * Radiotherapy with extended field radiation within the previous 4 weeks or radiotherapy with a limited field radiation within the previous 2 weeks.

Design outcomes

Primary

MeasureTime frameDescription
Progression-free Survival (PFS)2 years since the start of treatmentMedian duration of time from start of treatment to time of progression by RESIST 1.1 criterion or death. Progression is defined using RECIST v 1.0 as a 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions.

Secondary

MeasureTime frameDescription
Safety of Elenagen in Combination With Gemcitabine1 year after the start of treatmentFrequency of drug-related adverse events (AEs) and serious AEs (SAEs) according to NCI CTCAE version 5.0.

Countries

Belarus

Participant flow

Recruitment details

All patients were recruited in medical clinics of Republic of Belarus,

Baseline characteristics

Characteristic
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
40 Participants
CA125 oncomarker116 units per ml
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 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
40 Participants
Region of Enrollment
Belarus
40 Participants
Sex: Female, Male
Female
40 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 201 / 20
other
Total, other adverse events
4 / 207 / 20
serious
Total, serious adverse events
0 / 200 / 20

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 25, 2026