NCT07671495

Brief Summary

The goal of this clinical trial is to learn if adding alpha interferon to standard treatment works to prevent skin melanoma from coming back after surgery. The study will also learn if different doses of alpha interferon work better than others. The main questions it aims to answer are:

  • Does alpha interferon help people with melanoma live longer without the cancer returning?
  • Does a higher dose of alpha interferon work better than a lower dose?
  • How does alpha interferon affect the immune system? Researchers will compare six different treatment approaches to see which one works best. Participants will:
  • Have surgery to remove their melanoma
  • Receive one of six different treatments after surgery:
  • Radiation therapy (40 Gy)
  • Low-dose interferon (3 million IU)
  • Surgery alone (no additional treatment)
  • High-dose interferon (9 million IU/m² IV)
  • Low-dose interferon with chemotherapy (dacarbazine + cisplatin)
  • Chemotherapy alone (dacarbazine + cisplatin)
  • Have regular check-ups to see if the cancer returns
  • Have blood tests to check immune system function Key finding: The study will determine which treatment approach provides the best chance of survival without cancer recurrence.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
278

participants targeted

Target at P75+ for phase_2

Timeline
Completed

Started Jan 2014

Longer than P75 for phase_2

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2014

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2017

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2018

Completed
7.6 years until next milestone

First Submitted

Initial submission to the registry

June 22, 2026

Completed
4 days until next milestone

First Posted

Study publicly available on registry

June 26, 2026

Completed
Last Updated

June 30, 2026

Status Verified

June 1, 2026

Enrollment Period

3.9 years

First QC Date

June 22, 2026

Last Update Submit

June 26, 2026

Conditions

Keywords

MelanomaAlpha InterferonImmunotherapyAdjuvant TherapyCD4/CD8 RatioRecurrence-Free SurvivalOverall Survival

Outcome Measures

Primary Outcomes (3)

  • Recurrence-free survival

    Time from surgical resection to first documented recurrence of melanoma (local, regional, or distant) or death from any cause, whichever occurs first. Assessed through clinical examination, imaging studies, and histopathological confirmation when applicable.

    Up to 5 years following surgical resection

  • 5-year overall survival

    Proportion of participants alive at 5 years following surgical resection. Survival status assessed through clinical follow-up visits and medical records review.

    5 years following surgical resection

  • Change in CD4/CD8 Ratio

    Change in the ratio of CD4-positive to CD8-positive T lymphocytes from baseline to post-treatment. Measured by flow cytometry using peripheral blood samples. Assesses immunologic response to interferon-alpha therapy.

    Baseline and at 6 months post-treatment

Secondary Outcomes (3)

  • Incidence of treatment-related adverse events

    Through treatment completion, up to 12 months

  • Time to recurrence

    Up to 5 years following surgical resection

  • Disease-free survival

    Up to 5 years following surgical resection

Study Arms (6)

Surgery + Radiotherapy

EXPERIMENTAL

Surgical resection of primary melanoma with wide excision (4-5 cm margin on trunk, 3 cm on head/neck) followed by adjuvant radiotherapy. Radiation: external beam gamma therapy, 2 Gy daily fraction, total dose 40 Gy to primary site, 20 Gy to regional lymph node area. Indicated for localized melanoma (T1-2N0M0) with Clark invasion level I-II. n=49 patients.

Procedure: Surgical resectionRadiation: Adjuvant RadiotherapyDiagnostic Test: Immunological MonitoringDiagnostic Test: Skinscope Dermatoscopy

Surgery + Low-Dose IFN-α

EXPERIMENTAL

Surgical resection followed by low-dose interferon alfa immunotherapy. Regimen: 3 million IU intradermal daily until cumulative dose 30 million IU, then maintenance therapy (3 million IU single dose) administered only when CD4/CD8 ratio drops below 1.3. Indicated for localized melanoma (T1-4N0M0) with low/intermediate metastasis risk. n=38 patients

Procedure: Surgical resectionBiological: interferon alfaDiagnostic Test: Immunological MonitoringDiagnostic Test: Skinscope Dermatoscopy

Surgery Alone (Control)

ACTIVE COMPARATOR

Surgical resection only, no adjuvant therapy. Wide excision of primary melanoma with margins 4-5 cm on trunk, 3 cm on head/neck. Regional lymphadenectomy performed if enlarged nodes present. Indicated for localized melanoma (T1-4N0M0) with low/intermediate metastasis risk as control group. n=64 patients.

Procedure: Surgical resectionDiagnostic Test: Immunological MonitoringDiagnostic Test: Skinscope Dermatoscopy

Surgery + High-Dose IFN-α

EXPERIMENTAL

Surgical resection followed by high-dose interferon alfa immunotherapy. Regimen: 9 million IU/m² intravenous every 2 days for a total of 4 doses. Indicated for locoregional melanoma (T3-4N0-1M0) with intermediate/high metastasis risk. Treatment discontinued in 29.6% of patients due to severe adverse events (hepatotoxicity, nephrotoxicity, cardiotoxicity, flu-like syndrome, leukopenia). n=37 patients.

Procedure: Surgical resectionBiological: interferon alfaDiagnostic Test: Immunological MonitoringDiagnostic Test: Skinscope Dermatoscopy

Surgery + Low-Dose IFN-α + Polychemotherapy

EXPERIMENTAL

Surgical resection followed by sequential immunochemotherapy. Phase 1: Low-dose interferon alfa 3 million IU intradermal daily to cumulative 30 million IU. Phase 2: 6 cycles of polychemotherapy (every 21 days): dacarbazine 1400 mg IV + cisplatin 50 mg IV. Indicated for locoregional melanoma (T3-4N0-1M0) with intermediate/high metastasis risk. n=47 patients.

Procedure: Surgical resectionBiological: interferon alfaDrug: Dacarbazine (DTIC)Drug: CisplatinDiagnostic Test: Immunological MonitoringDiagnostic Test: Skinscope Dermatoscopy

Surgery + Polychemotherapy Alone (Control)

ACTIVE COMPARATOR

Surgical resection followed by adjuvant polychemotherapy alone (control group for locoregional melanoma). Regimen: 6 cycles every 21 days of dacarbazine 1400 mg IV + cisplatin 50 mg IV. Indicated for locoregional melanoma (T3-4N0-1M0) with intermediate/high metastasis risk. n=43 patients.

Procedure: Surgical resectionDrug: Dacarbazine (DTIC)Drug: CisplatinDiagnostic Test: Immunological MonitoringDiagnostic Test: Skinscope Dermatoscopy

Interventions

Wide excision of primary skin melanoma under general intravenous anesthesia. Incision margin: 4-5 cm from visible tumor edge on trunk, 3 cm on head and neck, excised as a single block with subcutaneous fat and superficial fascia. For lower extremity melanoma in 7 patients, wide excision performed without skin closure (open wound management). Regional lymphadenectomy (Duke's operation for inguinal area or axillary lymphadenectomy) performed if enlarged regional lymph nodes present or for Clark invasion level III-IV

Also known as: Wide excision, melanoma surgery
Surgery + High-Dose IFN-αSurgery + Low-Dose IFN-αSurgery + Low-Dose IFN-α + PolychemotherapySurgery + Polychemotherapy Alone (Control)Surgery + RadiotherapySurgery Alone (Control)

External beam gamma radiotherapy delivered to primary melanoma site and regional lymph node area. Regimen: 2 Gray (Gy) per fraction daily. Total dose: 40 Gy to primary tumor site, 20 Gy to regional lymph node area. Indicated only for localized melanoma with Clark invasion level I-II (T1-2N0M0). Not recommended for deeper invasion (T3-4N0M0) as it may accelerate disease progression

Also known as: External beam radiotherapy, gamma therapy
Surgery + Radiotherapy
interferon alfaBIOLOGICAL

Recombinant interferon alfa (IFN-α) immunotherapy administered in two dosing regimens. Low-dose regimen: 3 million IU intradermal daily until cumulative 30 million IU, then maintenance 3 million IU single dose only when CD4/CD8 ratio \<1.3. High-dose regimen: 9 million IU/m² intravenous every 2 days for 4 total doses. High-dose regimen associated with severe adverse events (fever 39-40°C, headache, nausea, cardiotoxicity, hepatotoxicity, nephrotoxicity, leukopenia) leading to treatment discontinuation in 29.6% of patients.

Also known as: IFN-α, recombinant interferon alpha
Surgery + High-Dose IFN-αSurgery + Low-Dose IFN-αSurgery + Low-Dose IFN-α + Polychemotherapy

Alkylating agent chemotherapy. Administered intravenously at 1400 mg per cycle. Used in combination with cisplatin for adjuvant polychemotherapy. Cycle repeats every 21 days for total of 6 cycles. Common adverse effects: nausea, vomiting, stomatitis, alopecia, short-term diarrhea.

Also known as: DTIC, imidazole carboxamide
Surgery + Low-Dose IFN-α + PolychemotherapySurgery + Polychemotherapy Alone (Control)

Platinum-based chemotherapy agent. Administered intravenously at 50 mg per cycle. Used in combination with dacarbazine for adjuvant polychemotherapy. Cycle repeats every 21 days for total of 6 cycles. Adverse effects: nausea, vomiting, nephrotoxicity (managed with hydration), ototoxicity

Also known as: CDDP, platinol
Surgery + Low-Dose IFN-α + PolychemotherapySurgery + Polychemotherapy Alone (Control)

Monitoring of cellular immunity parameters including CD3, CD4, CD8, and CD4/CD8 ratio (immune regulatory index) using monoclonal antibodies. Performed at baseline pre-surgery, then at 1 month post-surgery, every 2 months for first year, and every 3 months for subsequent 5 years. CD4/CD8 ratio \<1.3 indicates immunosuppression requiring intervention. Ratio decline over 3-6 months predicts disease recurrence in 98.2% of cases.

Also known as: CD4/CD8 ratio, immune regulatory index, flow cytometry
Surgery + High-Dose IFN-αSurgery + Low-Dose IFN-αSurgery + Low-Dose IFN-α + PolychemotherapySurgery + Polychemotherapy Alone (Control)Surgery + RadiotherapySurgery Alone (Control)
Skinscope DermatoscopyDIAGNOSTIC_TEST

Non-invasive dermatoscopy device (Menard, Japan) for detecting subclinical intradermal satellite metastases in melanoma patients. Provides 40-80x magnification with surface and deep imaging modes. Enables photo/video capture and analysis. Sensitivity: 75.0±4.1% for detecting intradermal metastases vs. 26.0±3.4% with visual examination alone. Helps determine appropriate surgical margins. Priority certificate No.2009/1105.1 dated 04.09.2009.

Also known as: Menard Skinscope, video dermatoscopy
Surgery + High-Dose IFN-αSurgery + Low-Dose IFN-αSurgery + Low-Dose IFN-α + PolychemotherapySurgery + Polychemotherapy Alone (Control)Surgery + RadiotherapySurgery Alone (Control)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Histologically confirmed diagnosis of skin melanoma (stages I-IV according to TNM classification)
  • Underwent complete surgical resection of primary tumor with negative margins
  • Age 18 years or older
  • Eastern Cooperative Oncology Group (ECOG) performance status 0-2
  • Life expectancy of at least 6 months
  • Adequate bone marrow function: absolute neutrophil count ≥ 1.5 × 10⁹/L, platelet count ≥ 100 × 10⁹/L, hemoglobin ≥ 90 g/L
  • Adequate hepatic function: bilirubin ≤ 1.5 × upper limit of normal (ULN), transaminases ≤ 2.5 × ULN
  • Adequate renal function: creatinine ≤ 1.5 × ULN or creatinine clearance ≥ 50 mL/min
  • Willing and able to provide written informed consent
  • Willing to comply with study procedures and follow-up schedule

You may not qualify if:

  • Presence of distant metastases at the time of diagnosis (except for stage IV patients included per protocol)
  • Prior immunotherapy, chemotherapy, or radiotherapy for melanoma
  • History of other malignant neoplasms within the past 5 years (except non-melanoma skin cancer or carcinoma in situ of the cervix)
  • Severe or uncontrolled organ dysfunction (cardiac, hepatic, renal, pulmonary)
  • Active infection requiring systemic therapy
  • Known hypersensitivity to interferon-alpha or any study medications
  • Known hypersensitivity to dacarbazine, cisplatin, or any excipients
  • Pregnancy or breastfeeding
  • Psychiatric or cognitive impairment that would interfere with study participation
  • Participation in another interventional clinical trial within 30 days prior to enrollment
  • Any condition that, in the investigator's opinion, would compromise participant safety or interfere with study objectives

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Melanoma

Interventions

Radiotherapy, AdjuvantInterferon-alphaDacarbazineCisplatinMonitoring, ImmunologicCD4-CD8 RatioFlow Cytometry

Condition Hierarchy (Ancestors)

Neuroendocrine TumorsNeuroectodermal TumorsNeoplasms, Germ Cell and EmbryonalNeoplasms by Histologic TypeNeoplasmsNeoplasms, Nerve TissueNevi and MelanomasSkin NeoplasmsNeoplasms by SiteSkin DiseasesSkin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

Combined Modality TherapyTherapeuticsRadiotherapyInterferon Type IInterferonsCytokinesIntercellular Signaling Peptides and ProteinsPeptidesAmino Acids, Peptides, and ProteinsProteinsBiological FactorsTriazenesOrganic ChemicalsImidazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsChlorine CompoundsInorganic ChemicalsNitrogen CompoundsPlatinum CompoundsImmunologic TestsClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisMonitoring, PhysiologicInvestigative TechniquesImmunologic TechniquesCD4 Lymphocyte CountLymphocyte CountLeukocyte CountBlood Cell CountCell CountCytological TechniquesHematologic TestsCell Physiological PhenomenaBlood Physiological PhenomenaCirculatory and Respiratory Physiological PhenomenaImmune System PhenomenaCell SeparationCytophotometryFluorometryLuminescent MeasurementsPhotometryChemistry Techniques, Analytical

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NON RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
This is an open-label study. Participants, care providers, and investigators are aware of the treatment assignments. However, the outcomes assessor performing the survival analysis and CD4/CD8 ratio measurements is blinded to treatment allocation to reduce bias in outcome assessment.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Six parallel treatment groups based on TNM stage and risk category. Groups I-III (localized melanoma, n=151): surgery+radiotherapy (49), surgery+low-dose IFN-α (38), surgery alone (64). Groups IV-VI (locoregional melanoma, n=127): surgery+high-dose IFN-α (37), surgery+low-dose IFN-α+polychemotherapy (47), surgery+polychemotherapy alone (43). Non-randomized allocation.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 22, 2026

First Posted

June 26, 2026

Study Start

January 1, 2014

Primary Completion

December 1, 2017

Study Completion

December 1, 2018

Last Updated

June 30, 2026

Record last verified: 2026-06