NCT07815574Not yet recruitingPhase 3
iSCIB1+ in Combination With Ipilimumab and Nivolumab as First-Line Treatment for Advanced Unresectable Melanoma
A Phase 3 Multicenter, Randomized, Double-Blind, Placebo-Controlled, Adaptive Study of iSCIB1+ in Combination With Ipilimumab and Nivolumab as First-Line Treatment for Advanced Unresectable Melanoma
Source: ClinicalTrials.gov · Last updated 11 Sept 2026
Brief summary (registry, in English)
This Phase 3 clinical trial is evaluating whether adding iSCIB1+, an investigational DNA-based cancer vaccine, to standard immunotherapy with nivolumab and ipilimumab can improve outcomes for people with advanced unresectable melanoma. Participants will be randomly assigned to receive either iSCIB1+ or a placebo, in addition to standard treatment with nivolumab and ipilimumab. Neither participants nor study doctors will know which treatment has been assigned. The study will compare how long participants live without their cancer worsening, overall survival, tumor response, safety, and quality of life. iSCIB1+ is designed to stimulate the immune system to recognize and attack melanoma cells by targeting proteins commonly found on melanoma tumors. Earlier studies have shown encouraging signs of immune activation and anti-tumor activity when iSCIB1+ was combined with checkpoint inhibitor immunotherapy. This study aims to determine whether adding iSCIB1+ to standard immunotherapy provides additional benefit compared with standard immunotherapy alone
- Status (registry)
- Not yet recruiting
- Phase (registry)
- Phase 3
- Study type
- Interventional
- Enrollment
- 550 (estimated)
- First submitted
- 3 Sept 2026
- Start date
- 1 Dec 2026
- Primary completion date
- 1 Dec 2028
- Lead sponsor
- Scancell Ltd
- Diseases
- Melanoma
- NCT number
- NCT07815574
What you commit to
- Study type: Interventional · Phase 3
- Planned participants: 550
- From 1 Dec 2026 to the primary completion date, 1 Dec 2028
- 2 sites in 2 countries
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Criteria the registry did not label
- 5.1.Inclusion Criteria
- Participant has histologically confirmed, unresectable Stage III or Stage IV melanoma as defined by the AJCC (Gershenwald et al., 2017). Participants with a diagnosis of melanoma of unknown primary are eligible.
- Participant is positive for at least one of the following HLA alleles: HLA- with an HLA type of any one of HLA MHC class I: A2, A3, A31, Bw4, B44 and B35.
- Participant has been clinically evaluated, and checkpoint inhibition has been determined to be an appropriate treatment for their advanced disease.
- Participant's BRAF status must be known; participants with BRAF mutation positive disease may be enrolled without BRAF-inhibitor treatment at the discretion of the Study Investigator.
- Participant has at least one measurable lesion per RECIST 1.1 criteria by computed tomography CT scan or MRI.
- Participant is at least 18 years of age.
- Participant has a life expectancy of more than 6 months.
- Participant has an ECOG performance status of 0 or 1.
- Participant has adequate organ function as determined by the following laboratory values:
- Absolute neutrophil count ≥ 1.5 x 109/L Lymphocyte count ≥0.5 x 109/L Platelet count ≥100 x 109/L Hemoglobin \>9 g/dL (\> 5.6 mmol/L) Serum creatinine or creatinine clearance ≤1.5x ULN \>50 mL/min Serum total bilirubin ≤1.5 x ULN or \<3.0 mg/dL if participant has Gilbert's syndrome Serum transaminases, AST and ALT ≤2.5 x ULN or ≤5.0 x ULN if liver metastases present
- Participant must be able and willing to provide written IRB/REC-approved informed consent prior to any study-related procedure.
- Women of childbearing potential must agree to use highly effective contraceptive methods prior to study entry, for the whole duration of study treatment, and for at least 5 months following the last dose or in accordance with the SmPC of the IC SOC CPI (whichever is most conservative).
- See Appendix D: Guidance on Acceptable Contraceptive Methods for full guidance..
- Women of childbearing potential must have a negative serum pregnancy test at screening and within two days before IMP (or placebo) administration.
- Participant must be willing and able to comply with scheduled visits, treatment plan, laboratory tests and other study procedures.
- 5.2.Exclusion Criteria
- Participant has a diagnosis of mucosal, ocular or acral melanoma.
- Participant has received prior systemic anti-PD1 treatment for advanced disease.
- Participant has received prior adjuvant treatment, defined as treatment following resection of all detectable disease, within 6 weeks of Day 1 (first dose of IMP).
- Participant has BRAF mutation positive disease with evidence of rapid PD.
- Participant has symptomatic brain metastases or carcinomatous meningitis. Symptomatic brain metastases are defined as brain metastases causing neurological signs or symptoms attributable to intracranial disease and/or requiring corticosteroid therapy for the management of brain metastasis-related symptoms. Participant is expected to require and elect any other form of systemic or localized anticancer therapy while receiving study treatment.
- Participants receive treatment with any investigational product within 28 days (or five half-lives of the treatment concerned if longer than 28 days) prior to Day 1.
- Participant has had a previous or current malignancy within 5 years, with the exception of melanoma and curatively treated local tumors.
- Participant has a concurrent illness/diagnosis which are uncontrolled and/or would preclude study conduct and assessment.
- Participant has NYHA class III or IV heart disease.
- Participant has a history of severe hypersensitivity reaction to treatment with a mAb.
- Participant has an active autoimmune disease or a documented history of autoimmune disease or syndrome that requires systemic steroids or immunosuppressive agents above physiological dosing.
- Received a live vaccine or non-live vaccine (including COVID-19 vaccines) within 7 days prior to first dose of study treatment.
- Participant has received systemic steroids or is receiving any other form of immune suppressant medication above physiological dosing within 7 days of Day 1.
- Participant is positive for HIV-1/2 infection or is positive for HBsAg or HCV antigen consistent with active infection.
- Participant has a known current or recent history (within the last year) of substance abuse including illicit drugs or alcohol to the extent where it would negatively affect compliance with the trial protocol based on Study Investigator's decision.
- Participant has received a solid organ transplant.
- Participant is breastfeeding during the study treatment phase, and for at least five months following the last dose or in accordance with the SmPC of I/N (whichever is most conservative).
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (2)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Mount Vernon Cancer Centre Coordinator of this site? Confirm its status | London | United Kingdom | Unknown status |
| University of Colorado Cancer Center Coordinator of this site? Confirm its status | Aurora | United States | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.