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NCT Number: NCT07740941

NeoAdjuvant, Spare-Adjuvant (NASA) in Stage IIIB-IV (M1a) Melanoma

This study evaluates the impact of neoadjuvant Programmed cell death Protein 1 (PD-1)-based treatment regimens in patients with resectable stage IIIB-M1a cutaneous or unknown primary melanoma at high risk of relapse without adjuvant therapy after definitive lymphadenectomy and irrespective of pathologic response outcome on the 2-year overall survival (OS). We hypothesize that neoadjuvant PD1 inhibitor-based treatment without adjuvant treatment does not significantly (non-inferior) impact OS in this study patient population. Patients will be randomized to either two infusions of pembrolizumab or one infusion of ipilimumab plus nivolumab followed by a single infusion of nivolumab. Patients will undergo follow-up and restaging scans to assess event-free survival at 12 months and OS at 24 months after the first neoadjuvant treatment infusion.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Lineberger Comprehensive Cancer Center

Chapel Hill, North Carolina, 27599, United States

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Written informed consent will be obtained to participate in the study, and HIPAA authorization for the release of personal health information.
  • Subject is willing and able to comply with study procedures based on the judgment of the investigator or protocol designee, including randomization.
  • Age ≥ 18 years at the time of consent.
  • ECOG Performance Status of 0-2.
  • Histological confirmation of cutaneous melanoma or melanoma of unknown primary.
  • AJCC stage IIIB/IVa resectable disease that is measurable by iRECIST criteria.
  • Adequate hematologic, renal, hepatic, and heart function

Exclusion criteria

  • Prior treatment with PD-1 Programmed cell death Protein 1 (PD-1) and Cytotoxic T-lymphocyte Antigen 4 (CTLA-4).
  • Has an active autoimmune disease that requires systemic treatment with the use of disease-modifying agents or immunosuppressive drugs. For corticosteroids, up to 10 mg of prednisone daily, or an equivalent dose, is permitted. Hormone replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment.
  • Any condition, including laboratory abnormalities, that, in the opinion of the investigator, places the subject at unacceptable risk if he/she were to participate in the study. This includes, but is not limited to, serious medical conditions or psychiatric illnesses that are likely to interfere with participation in this clinical study.

Treatment and study plan

Pembrolizumab

Drug

Pembrolizumab 200 mg IV, every 3 weeks

Ipilimumab plus nivolumab

Drug

Single infusion of concurrent ipilimumab (3 mg/kg) plus nivolumab (1 mg/kg) followed by a single infusion of nivolumab 240 mg IV 3 weeks later

Primary outcomes

  1. Overall survival

    Time frame: 2-year

    The overall survival (OS) rate will be defined from the initiation of study treatments for the combined patient cohorts (cohort A and cohort B).

Secondary outcomes

  1. Event - Free Survival (EFS)

    Time frame: 1-year

    The Event - Free Survival (EFS) rate will be defined from the initiation of study treatments for the combined patient cohorts (cohort A and cohort B).

  2. Major pathologic response (MPR) rate

    Time frame: Up to 12 weeks

    The MPR rate for each of the two study treatment cohorts (cohort A and cohort B) will be defined using established pathologic response criteria. Pathologic response will be assessed by determining the percentage of residual viable tumor in the resected specimen. Major pathologic response is defined as ≤10% residual viable tumor, and pathologic complete response is defined as the absence of viable tumor cells.

  3. Treatment Related Adverse Events (TRAEs)

    Time frame: Up to 12 weeks

    TRAEs are defined as adverse events assessed by the investigator as related to study treatment, Grade 3 or higher grades. The incidence of TRAEs will be determined separately for each of the two cohorts and graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Version 6.0. CTCAE classifies severity as follows: Grade 1 - asymptomatic or mild symptoms; clinical or diagnostic observations only; intervention not indicated. Grade 2 - minimal, local, or noninvasive intervention indicated; limiting age-appropriate instrumental activities of daily living (ADL). Grade 3 - severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self-care ADL. Grade 4 - life-threatening consequences; urgent intervention indicated. Grade 5 - death related to the adverse event.

Study contacts

Contact information is provided by the study sponsor or research team.

Alexandra V Romfoe

CONTACT

[email protected]

919-984-0000

Claire Kowalczyk

CONTACT

[email protected]

919-984-0000

Sponsors and collaborators

Lead sponsor

UNC Lineberger Comprehensive Cancer Center

Other

Registry information

Official study title

NeoAdjuvant, Spare-Adjuvant (NASA) in Stage IIIB- IV (M1a) Melanoma

Important dates

Study start
2026
Primary completion
2029
Study completion
2029
First posted
Aug 3, 2026
Registry last updated
Aug 3, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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