Treatment of skin cancer using gene therapy with intratumoral gene electrotransfer of a plasmid coding for IL-12
| ISRCTN | ISRCTN15479959 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN15479959 |
| ClinicalTrials.gov (NCT) | NCT05077033 |
| Clinical Trials Information System (CTIS) | 2021-000852-21 |
| Protocol serial number | ERIDEK-0086/2020 |
| Sponsor | Institute of Oncology Ljubljana |
| Funder | Javna Agencija za Raziskovalno Dejavnost RS |
- Submission date
- 24/09/2021
- Registration date
- 29/09/2021
- Last edited
- 24/01/2025
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Cancer
Plain English summary of protocol
Background and study aims
Electroporation is a local drug delivery method that uses an electric pulse to deliver drugs such as bleomycin or cisplatin (called electrochemotherapy) or genetic material such as RNA or DNA (called gene electrotransfer). In this study, the researchers want to use gene electrotransfer to deliver the medicine phIL12 to the tumor site (intratumoral phIL12 gene electrotransfer). phIL12 is a medicine consisting of plasmid DNA which can produce IL-12 protein in the body that can help the immune system to fight against cancer. Intratumoral gene electrotransfer with a plasmid coding IL-12 has been proven to be safe and effective for the treatment of melanoma skin metastases in the USA. EU directives recommend the use of plasmids without the gene for antibiotic resistance. For this purpose, the researchers constructed a plasmid coding for IL-12 in accordance with the EU regulatory requirements. The aim of this study is to assess the safety and tolerability of the constructed plasmid, phIL12, in the treatment of basal cell carcinoma in patients with tumors in the head and neck region, where surgery is also feasible.
Who can participate?
Adults (aged over 18 years) with untreated cutaneous basal cell carcinoma located in the head and neck region. Patients with only one tumor with the largest diameter up to 3 cm, in the region where surgery is feasible, will be included.
What does the study involve?
Patients will be treated with a single intratumoral phIL12 gene electrotransfer. Three different dose levels will be tested, starting with the lowest dose in three patients. If that dose is well tolerated, a higher dose will be used for next three patients and another higher dose for the last three patients.
What are the possible benefits and risks of participating?
So far minimal or no side effects have been reported. Due to the pain caused by the electric pulses, local or general anesthetic will be needed. There may be some reddening of the skin but no pain after the treatment is complete is expected. The possible benefit is complete tumor regression.
Where is the study run from?
The University Medical Centre Ljubljana and Institute of Oncology Ljubljana (Slovenia)
When is the study starting and how long is it expected to run for?
December 2019 to December 2023
Who is funding the study?
Slovenian Research Agency (ARRS) (Slovenia)
Who is the main contact?
Prof. Gregor Sersa
gsersa@onko-i.si.
Contact information
Scientific
Institute of Oncology Ljubljana
Zaloška cesta 2
Ljubljana
SI-1000
Slovenia
 ORCID ID |
0000-0002-7641-5670 |
|---|---|
| Phone | +386 (0)1 5879 434 |
| gsersa@onko-i.si |
Scientific
Institute of Oncology Ljubljana
Zaloška cesta 2
Ljubljana
SI-1000
Slovenia
| ORCID ID |
0000-0002-0445-112X |
|---|---|
| Phone | +386 (0)1 5879 290 |
| pstrojan@onko-i.si |
Study information
| Primary study design | Interventional |
|---|---|
| Study design | Clinical interventional open-label single-arm exploratory Phase I trial |
| Secondary study design | Non randomised study |
| Study type | Participant information sheet |
| Scientific title | Treatment of skin tumours with intratumoral interleukin 12 gene electrotransfer in the head and neck region |
| Study acronym | SmartGeneH&N |
| Study objectives | In the proposed study the researchers intend to study the safety and tolerability of the constructed plasmid, phIL12, in the treatment of basal cell carcinomas in patients with operable tumors in the head and neck region. The study is designed as exploratory, dose-escalating with the aim to determine the dose of plasmid that produces IL-12 expression in the tumours with the best biological activity, infiltration of the immune cells and no toxicity. |
| Ethics approval(s) | Approved 14/07/2021, Slovenian National Medical Ethics Committee (Štefanova ulica 5, 1000 Ljubljana; +386 (0)1 478 69 06; kme.mz@gov.si), ref: 0120-524/2020-12 |
| Health condition(s) or problem(s) studied | Basal cell carcinoma of the skin in the head and neck region |
| Intervention | Patients with operable basal cell carcinoma of the skin in the head and neck region will be treated with a single intratumoral phIL12 gene electrotransfer (GET). The study is designed as a Phase I study with 3-6 patients per dose level, three dose levels, for a total estimated number of 9 patients (3-18 patients). The drug product, a plasmid p21-hIL-12-ORT, is prepared at a final concentration of 0.5 mg/ml, 1 mg/ml and 2 mg/ml diluted in physiological saline, ready for injection. |
| Intervention type | Drug |
| Phase | Phase I |
| Drug / device / biological / vaccine name(s) | phIL12 |
| Primary outcome measure(s) |
1. Safety of the intratumoral phIL12 GET measured by recording adverse events according to Common Terminology Criteria for Adverse Events (CTCAE) v.5.0 criteria right after the therapy and at each follow-up 2, 7 and 30 days after the therapy |
| Key secondary outcome measure(s) |
1. Pharmacokinetics determined by measuring IL-12 serum levels at 2, 7 and 30 days after the therapy |
| Completion date | 31/12/2023 |
Eligibility
| Participant type(s) | Patient |
|---|---|
| Age group | Adult |
| Lower age limit | 18 Years |
| Sex | All |
| Target sample size at registration | 9 |
| Total final enrolment | 9 |
| Key inclusion criteria | 1. Histologically or cytologically confirmed, previously untreated cutaneous basal cell carcinoma located in head and neck region 2. Solitary tumours, with the largest diameter up to 3 cm, in the region where curative surgery is feasible 3. Age 18 years or older 4. Life expectancy >3 months 5. Physical performance in accordance with the Karnofsky scale ≥70 or <2 in accordance with World Health Organization (WHO) scale 6. The patient must be capable of understanding the treatment procedure and possible adverse events, which may arise during treatment 7. The patient must be capable of signing the informed consent to participate in the clinical study (voluntary and conscientious consent after education) 8. Prior to inclusion in the trial, the patient must be presented at a multidisciplinary advisory team meeting |
| Key exclusion criteria | 1. Known malignancy elsewhere in/on the body 2. Lesions not suitable for treatment with GET (invasion into the bone, infiltration of large vessels) 3. A life-threatening infection and/or severe heart failure and/or liver failure and/or other life-threatening systemic diseases 4. Significantly reduced lung function, which requires the determination of diffusing capacity for carbon monoxide (DLCO). Patients should not be treated if DLCO is abnormal 5. Treatment with immunosuppressive drugs, steroids and other drugs that would affect poor wound healing 6. Age under 18-years 7. Major disruptions in the coagulation system (who does not respond to the standard therapy – replacement of vitamin K or freshly frozen plasma) 8. A chronic decline in kidney function (creatinine >150 µmol/l) 9. Epilepsy 10. Pregnancy and breastfeeding 11. Patient’s incapable of comprehending the purpose or course of the trial, or not agreeing to be included in the trial 12. Patients unwilling or unable to comply with the protocol requirements and scheduled visits |
| Date of first enrolment | 28/09/2021 |
| Date of final enrolment | 01/09/2023 |
Locations
Countries of recruitment
- Slovenia
Study participating centre
Ljubljana
1000
Slovenia
Results and Publications
| Individual participant data (IPD) Intention to share | Yes |
|---|---|
| IPD sharing plan summary | Other |
| IPD sharing plan | The datasets generated and/or analysed during the current study during this study will be included in the subsequent results publication. |
Study outputs
| Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
|---|---|---|---|---|---|
| Results article | 06/01/2025 | 24/01/2025 | Yes | No | |
| Protocol article | 14/08/2022 | 07/11/2022 | Yes | No | |
| Participant information sheet | Participant information sheet | 11/11/2025 | 11/11/2025 | No | Yes |
Editorial Notes
24/01/2025: Publication reference added.
30/12/2024: The intention to publish date was changed from 31/12/2024 to 31/03/2025. Total final enrolment added.
12/12/2023: The intention to publish date was changed from 31/12/2023 to 31/12/2024.
07/11/2022: Publication reference and ClinicalTrials.gov number added.
28/09/2021: Trial's existence confirmed by the Slovenian National Medical Ethics Committee.
