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A Study to Compare the Administration of Pembrolizumab After Surgery Versus Administration Both Before and After Surgery for High-Risk Melanoma

A Phase II Randomized Study of Adjuvant Versus NeoAdjuvant Pembrolizumab (MK-3475) for Clinically Detectable Stage III-IV High-Risk Melanoma

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03698019
Enrollment
313
Registered
2018-10-05
Start date
2019-02-15
Completion date
2026-10-30
Last updated
2026-08-04

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

Conditions

Acral Lentiginous Melanoma, Clinical Stage III Cutaneous Melanoma AJCC v8, Clinical Stage IV Cutaneous Melanoma AJCC v8, Mucosal Melanoma

Brief summary

This phase II trial studies how pembrolizumab works before and after surgery in treating patients with stage III-IV high-risk melanoma. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving pembrolizumab before and after surgery may work better compared to after surgery alone in treating melanoma.

Detailed description

PRIMARY OBJECTIVE: I. To compare event-free survival (EFS) in participants with high-risk resectable melanoma randomized to neoadjuvant pembrolizumab (MK-3475) with participants randomized to adjuvant pembrolizumab (MK-3475). SECONDARY OBJECTIVES: I. To assess the frequency and severity of toxicities on each of the arms. II. To compare between arms overall survival (OS), disease control at 24 weeks, locoregional control in the surgical site(s), and total number of pembrolizumab (MK-3475) doses received. III. On the neoadjuvant arm, to estimate the pathologic response rate, the Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 response rate (confirmed and unconfirmed complete response \[CR\] and partial response \[PR\]), and the immune-related (i)RECIST response rate (confirmed and unconfirmed CR and PR), before surgical resection; to compare definitions of pathologic partial response; and to evaluate the association between pathologic response and EFS and OS. IV. To describe the proportion of participants on each arm who received the surgery planned at randomization. ADDITIONAL OBJECTIVE: I. To bank tumor tissue and whole blood in anticipation of future correlative studies in this participant population. OUTLINE: Patients are randomized to 1 of 2 arms. ARM I: Within 17 days (preferably within 14 days) days after surgical resection, patients receive pembrolizumab intravenously (IV) over 30 minutes on day 1. Treatment repeats every 3 weeks for 18 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo collection of blood throughout the study, and magnetic resonance imaging (MRI) or computers tomography (CT) on study. ARM II: Patients receive pembrolizumab IV over 30 minutes on day 1 every 3 weeks for 3 cycles, then undergo surgical resection within 3 weeks. Within 84 days, patients receive pembrolizumab IV over 30 minutes every 3 weeks for 15 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo collection of blood throughout the study and MRI or CT on study. After completion of study treatment, patients are followed up at 3 and 12 weeks, then every 3 months for 2 years, every 6 months for 3 years, then every 12 months for up to 10 years.

Interventions

PROCEDUREBiospecimen Collection

Undergo collection of blood

PROCEDUREComputed Tomography

Undergo CT

PROCEDUREMagnetic Resonance Imaging

Undergo MRI

BIOLOGICALPembrolizumab

Given IV

PROCEDURETherapeutic Conventional Surgery

Undergo surgery

Sponsors

National Cancer Institute (NCI)
Lead SponsorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* STEP 1 REGISTRATION (RANDOMIZATION): Patients must have clinically detectable stage III (clinically detectable N1b, N1c, N2b, N2c, N3b and N3c) or stage IV resectable melanoma. Patients with melanoma of mucosal or acral origin are eligible. Patients with melanoma of uveal origin are not eligible. Patients with a history of brain metastases are not eligible. Clinically detectable is defined as disease that is apparent and measurable via physical examination or radiographic imaging. * STEP 1 REGISTRATION (RANDOMIZATION): Patients are eligible for this trial either at initial presentation of their melanoma or at the time of the first detected nodal, satellite/in-transit, distant metastases, or recurrent disease in prior lymphadenectomy basin or distant site. Nodal, satellite/in-transit metastasis, distant metastases or disease in a prior complete lymphadenectomy basin must have been confirmed histologically by hematoxylin (H) \& eosin (E) stained slides. * STEP 1 REGISTRATION (RANDOMIZATION): Patients with multiple regional nodal basin involvement are eligible. Gross or microscopic extracapsular nodal extension is permitted. * STEP 1 REGISTRATION (RANDOMIZATION): Patients must have histologically proven stage IIIB or higher. This would entail pathologic confirmation beyond the primary or initial diagnosis of melanoma involving fine needle aspiration cytology or biopsy confirmation of any N-category or M-category resectable site. * STEP 1 REGISTRATION (RANDOMIZATION): Patients must not have received previous neoadjuvant treatment for their melanoma. Patients may have received prior non-immunotherapy adjuvant therapy. Patients must not have had prior immunotherapy including, but not limited to ipilimumab, interferon alfa-2b, high dose interleukin (IL)-2, pegylated-interferon (PEG-IFN), anti-PD-1, anti-PD-L1 intra-tumoral, or vaccine therapies. Patients must not be planning to receive any of the prohibited therapies during treatment phases on the study. * STEP 1 REGISTRATION (RANDOMIZATION): Patients must not be planning to receive concomitant other biologic therapy, hormonal therapy, other chemotherapy, surgery, while on protocol therapy. * STEP 1 REGISTRATION (RANDOMIZATION): Patients may have received prior radiation therapy, including after prior surgical resection. All adverse events associated with prior surgery and radiation therapy must have resolved to =\< grade 1 prior to randomization. * STEP 1 REGISTRATION (RANDOMIZATION): Patients must be \>= 18 years of age * STEP 1 REGISTRATION (RANDOMIZATION): All patients must have disease status documented by a complete physical examination and imaging studies within 42 days prior to randomization. Imaging studies must include a CT of the chest, abdomen and pelvis with intravenous contrast (unless contraindicated). For patients with melanoma arising from the head and neck, dedicated neck imaging (CT with intravenous contrast is required. If the patient has unknown primary with disease in the axilla, neck imaging is required CT imaging must be done with intravenous contrast if there are no contraindications for it. Extremity melanomas must be imaged using CT with intravenous contrast or MRI with and without gadolinium * Note: PET-CT scans are NOT acceptable to establish eligibility. Non-iodinated CT scans that are part of common PET-CT imaging protocols do not provide contrast for difficult to ascertain areas such as the neck and liver, and do not provide enough CT detail to perform appropriate RECIST 1.1 measurements. As such, a PET-CT with non-contrast CT or non-diagnostic quality CT images is considered insufficient for the detection of melanoma. * STEP 1 REGISTRATION (RANDOMIZATION): All patients must have a CT or magnetic resonance imaging (MRI) of the brain within 42 days prior to randomization. The brain CT or MRI should be performed with intravenous contrast (unless contraindicated). * STEP 1 REGISTRATION (RANDOMIZATION): Absolute neutrophil count (ANC) \>= 1,500/microliter (mcL) (within 42 days prior to randomization). * STEP 1 REGISTRATION (RANDOMIZATION): Platelets \>= 100,000/mcL (within 42 days prior to randomization). * STEP 1 REGISTRATION (RANDOMIZATION): Hemoglobin \>= 10 g/dL (within 42 days prior to randomization). * STEP 1 REGISTRATION (RANDOMIZATION): Total bilirubin =\< 1.5 x institutional upper limit of normal (IULN) (except patients with Gilbert's syndrome, who must have a total bilirubin \< 3.0 mg/dL) (within 42 days prior to randomization). * STEP 1 REGISTRATION (RANDOMIZATION): Serum glutamic-oxaloacetic transaminase (SGOT) (aspartate aminotransferase \[AST\]) and serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase \[ALT\]) =\< 2 x IULN (within 42 days prior to randomization). * STEP 1 REGISTRATION (RANDOMIZATION): Alkaline phosphatase =\< 2 x IULN (within 42 days prior to randomization). * STEP 1 REGISTRATION (RANDOMIZATION): Patients must have lactate dehydrogenase (LDH) performed within 42 days prior to randomization. * STEP 1 REGISTRATION (RANDOMIZATION): Patients must have adequate renal function as evidenced by calculated creatinine clearance \> 30 mL/min. The creatinine level (mg/dL) used in the calculation must be obtained within 42 days prior to randomization. * STEP 1 REGISTRATION (RANDOMIZATION): Patients must have Zubrod performance status =\< 2. * STEP 1 REGISTRATION (RANDOMIZATION): Patients must not have a history of (non-infectious) pneumonitis that required steroids or current pneumonitis. * STEP 1 REGISTRATION (RANDOMIZATION): Patients must not have an active infection requiring systemic therapy. * STEP 1 REGISTRATION (RANDOMIZATION): Patients must not have active autoimmune disease that has required systemic treatment in past 2 years (i.e., with use of disease modifying agents, corticosteroids or immunosuppressive drugs). 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. * STEP 1 REGISTRATION (RANDOMIZATION): Patients must not have received live vaccines within 42 days prior to randomization. Examples of live vaccines include, but are not limited to, the following: measles, mumps, rubella, chicken pox, shingles, yellow fever, rabies, Bacillus Calmette-Guerin (BCG), and typhoid (oral) vaccine. Seasonal influenza vaccines for injection are generally killed virus vaccines and are allowed; however, intranasal influenza vaccines (e.g., Flu-Mist) are live attenuated vaccines, and are not allowed. * NOTE: The COVID-19 vaccines (currently available and those in the pipeline for FDA emergency use authorization or FDA approval) do not contain live virus, and therefore, COVID-19 vaccination does not affect or preclude eligibility for the S1801 trial. For patients who have undergone lymphadenectomy, vaccines should be delivered to a limb with an intact lymph node basin (Sentinel lymph node biopsy in a limb is acceptable). The vaccine should not be administered in a limb that has undergone lymphadenectomy. * STEP 1 REGISTRATION (RANDOMIZATION): Patients known to be human immunodeficiency virus (HIV) positive are eligible if they meet the following criteria within 30 days prior to randomization: stable and adequate CD4 counts (\>= 350 mm\^3), and serum HIV viral load of \< 25,000 IU/ml. Patients may be on or off anti-viral therapy so long as they meet the CD4 count criteria. * STEP 1 REGISTRATION (RANDOMIZATION): Patients must not have known active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection prior to randomization. Note: No testing for hepatitis B and hepatitis C is required unless mandated by local health authority. * STEP 1 REGISTRATION (RANDOMIZATION): Prior malignancy is allowed providing it does not require concurrent therapy. * STEP 1 REGISTRATION (RANDOMIZATION): Women of childbearing potential must have a negative urine or serum pregnancy test within 28 days prior to randomization. Women/men of reproductive potential must have agreed to use an effective contraceptive method for the course of the study through 120 days after the last dose of study medication. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately. A woman is considered to be of "reproductive potential" if she has had menses at any time in the preceding 12 consecutive months. In addition to routine contraceptive methods, "effective contraception" also includes heterosexual celibacy and surgery intended to prevent pregnancy (or with a side-effect of pregnancy prevention) defined as a hysterectomy, bilateral oophorectomy, or bilateral tubal ligation. However, if at any point a previously celibate patient chooses to become heterosexually active during the time period for use of contraceptive measures outlined in the protocol, he/she is responsible for beginning contraceptive measures. Patients must not be pregnant or nursing due to unknown teratogenic side effects. * STEP 1 REGISTRATION (RANDOMIZATION): Patients must be deemed medically fit to undergo surgery by the treating medical/surgical team. * STEP 1 REGISTRATION (RANDOMIZATION): Patients must be willing to submit the following surgical specimens: either all tissue blocks from the surgical specimen or two slides per block (\[1\] hematoxylin and eosin \[H\&E\] slide and \[1\] unstained slide OR \[2\] unstained slides if H\&E stained slides cannot be provided). * STEP 1 REGISTRATION (RANDOMIZATION): Patients must be offered the opportunity to participate in specimen banking. * STEP 1 REGISTRATION (RANDOMIZATION): Patients must be informed of the investigational nature of this study and must sign and give written informed consent for this protocol in accordance with institutional and federal guidelines. * STEP 1 REGISTRATION (RANDOMIZATION): As a part of the Oncology Patient Enrollment Network (OPEN) randomization process the treating institution's identity is provided in order to ensure that the current (within 365 days) date of institutional review board approval for this study has been entered in the system. * STEP 2 REGISTRATION (SURGERY): Patients randomized to arm 2 (neoadjuvant arm) must be willing to submit tissue to determine pathologic response regardless of number of pre-operative doses of pembrolizumab (MK-3475) received. Determination of pathologic response cannot be done on less than the full surgical specimen. * STEP 2 REGISTRATION (SURGERY): Patients must have disease assessments by CT chest/abdomen/pelvis with IV contrast, and neck CT with IV contrast if primary head and neck melanoma, performed within 42 days (and no more than 49 days) before the planned date of surgery. MRI combined with non-contrast CT is an acceptable alternative for patients with CT contrast allergy, but imaging must encompass total body. * STEP 2 REGISTRATION (SURGERY): Patients must register to step 2 within 17 days prior to planned date of surgery. * STEP 3 REGISTRATION (ADJUVANT THERAPY): Patients must have undergone surgery prior to Step 3 registration. The Step 2 surgery must have completely resected their melanoma. * Patients with gross positive residual disease following surgery do not qualify as having disease-free status, and, therefore, such patients are not eligible to register for adjuvant therapy. * Patients with microscopic residual disease (i.e., positive margins) can be treated with re-excision or radiation, per site discretion, to render the patient disease-free prior to registration of adjuvant therapy. * Disease-free status must be documented by a complete physical examination and radiographic imaging studies within 42 days prior to Step 3 registration. Imaging studies must include a CT of the chest, abdomen, and pelvis (unless contraindicated). Extremity melanomas must be imaged using CT with intravenous contrast or MRI with and without gadolinium. CT imaging must be done with intravenous contrast if there are no contraindications for it. * For patients with melanoma arising from the head and neck, dedicated neck imaging (CT with IV contrast, unless contraindicated) is required. * If the patient has had unknown primary with disease in the axilla, neck imaging is required to assure the region is clear of cancer. * Any other clinically indicated imaging studies if performed (e.g., bone scan) must show no evidence of disease. * STEP 3 REGISTRATION (ADJUVANT THERAPY): Patients must be registered to step 3 no more than 84 days after date of surgery. * STEP 3 REGISTRATION (ADJUVANT THERAPY): Patients with R0 or R1 resections must have disease-free status documented by a complete physical examination and imaging studies within 42 days prior to step 3 registration. These patients must have disease assessments by CT chest/abdomen/pelvis with IV contrast, and neck CT with IV contrast if primary head and neck melanoma. MRI combined with non-contrast CT is an acceptable alternative for patients with CT contrast allergy, but imaging must encompass total body. * STEP 3 REGISTRATION (ADJUVANT THERAPY): Patients with R2 resections are not eligible for step 3 and must be removed from study treatment

Design outcomes

Primary

MeasureTime frameDescription
Two-Year Event-Free Survival Rate2 yearsEvent-free survival (EFS) is measured from date of randomization to date of first: documentation of progression that render participant unable to receive planned protocol surgery, off protocol therapy for any reason without subsequent protocol surgery, failure to begin adjuvant therapy within 84 days after surgery, relapse after surgery or death due to any cause. Participants last known to be alive and event-free are censored at date of last contact. All events that occurred before the start of adjuvant therapy were assigned an event date of 84 days.

Secondary

MeasureTime frameDescription
Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugDuration of treatment and follow-up until relapse, death, or 3.5 years post randomization.Only adverse events that are possibly, probably or definitely related to study drug are reported.
Two-Year Overall Survival Rate2 yearsOverall survival (OS) is measured from date of randomization to date of death due to any cause. Participants known to be alive are censored at date of last contact.
Response Rate2 yearsOn the neoadjuvant arm, the response rate was assessed after neoadjuvant therapy and before surgical resection. The response rate includes both complete response (CR) and partial response (PR). CR is defined as complete disappearance of all target and non-target lesions, no new lesions, and no disease related symptoms. PR is defined as greater than or equal to 30% decrease under baseline of the sum of all appropriate diameters of all target measurable lesions, no unequivocal progression or non-measurable disease, and no new lesions. The best response rate is calculated from the sequence of objective statuses. CR is defined as two or more objective statuses of CR a minimum of four weeks apart documented before progression or symptomatic deterioration. PR is defined as two or more objective statuses of PR or better a minimum of four weeks apart documented before progression or symptomatic deterioration, but not qualifying as CR.
Number of Participants Receiving Surgery2.5 yearsTo determine the number of participants on each arm who received the surgery planned at randomization.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORSapna P Patel

SWOG Cancer Research Network

Participant flow

Pre-assignment details

Three hundred forty-five participants were assessed for eligibility. Thirty-two participants were deemed ineligible for either not having measurable disease, per RECIST criteria (27 participants), or having an ineligible disease stage (5). The remaining 313 eligible participants were randomized.

Participants by arm

ArmCount
Arm I (Adjuvant Pembrolizumab)
Within 17 days (preferably within 14 days) days after IV over 30 minutes on day 1. Treatment repeats every 3 weeks for 18 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo collection of blood throughout the study and MRI or CT on study. Biospecimen Collection: Undergo collection of blood Computed Tomography: Undergo CT Magnetic Resonance Imaging: Undergo MRI Pembrolizumab: Given IV Therapeutic Conventional Surgery: Undergo surgery
159
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)
Patients receive pembrolizumab IV over 30 minutes on day 1 every 3 weeks for 3 cycles, then undergo surgery within 3 weeks. Within 84 days, patients receive pembrolizumab IV over 30 minutes every 3 weeks for 15 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo collection of blood throughout the study and MRI or CT on study. Biospecimen Collection: Undergo collection of blood Computed Tomography: Undergo CT Magnetic Resonance Imaging: Undergo MRI Pembrolizumab: Given IV Therapeutic Conventional Surgery: Undergo surgery
154
Total313

Baseline characteristics

CharacteristicArm II (Adjuvant and Neoadjuvant Pembrolizumab)TotalArm I (Adjuvant Pembrolizumab)
Age, Continuous64 years64 years62 years
BRAF Mutation Status
Mutated
41 Participants79 Participants38 Participants
BRAF Mutation Status
Unknown
51 Participants108 Participants57 Participants
BRAF Mutation Status
Wild-type
62 Participants126 Participants64 Participants
Disease Stage
IIIB
62 Participants126 Participants64 Participants
Disease Stage
IIIC
69 Participants143 Participants74 Participants
Disease Stage
IIID
9 Participants19 Participants10 Participants
Disease Stage
IV
14 Participants25 Participants11 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
9 Participants13 Participants4 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
136 Participants287 Participants151 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
9 Participants13 Participants4 Participants
LDH Level
High
22 Participants43 Participants21 Participants
LDH Level
Low or Normal
132 Participants270 Participants138 Participants
Previous BRAF and MEK Adjuvant Therapy
No
151 Participants309 Participants158 Participants
Previous BRAF and MEK Adjuvant Therapy
Yes
3 Participants4 Participants1 Participants
Previous Radiotherapy
No
152 Participants310 Participants158 Participants
Previous Radiotherapy
Yes
2 Participants3 Participants1 Participants
Primary Melanoma Subtype
Acral
4 Participants9 Participants5 Participants
Primary Melanoma Subtype
Cutaneous or Unknown
143 Participants296 Participants153 Participants
Primary Melanoma Subtype
Missing/Not Reported
3 Participants4 Participants1 Participants
Primary Melanoma Subtype
Mucosal
4 Participants4 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
2 Participants4 Participants2 Participants
Race (NIH/OMB)
Black or African American
1 Participants3 Participants2 Participants
Race (NIH/OMB)
More than one race
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
10 Participants14 Participants4 Participants
Race (NIH/OMB)
White
141 Participants291 Participants150 Participants
Sex: Female, Male
Female
62 Participants110 Participants48 Participants
Sex: Female, Male
Male
92 Participants203 Participants111 Participants
Ulceration
Missing/Not Reported
2 Participants2 Participants0 Participants
Ulceration
No
50 Participants108 Participants58 Participants
Ulceration
Unknown
46 Participants101 Participants55 Participants
Ulceration
Yes
56 Participants102 Participants46 Participants
Zubrod Performance Status Score
0
113 Participants238 Participants125 Participants
Zubrod Performance Status Score
1
39 Participants72 Participants33 Participants
Zubrod Performance Status Score
2
1 Participants1 Participants0 Participants
Zubrod Performance Status Score
Missing/Not Reported
1 Participants2 Participants1 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
22 / 15914 / 154
other
Total, other adverse events
132 / 141148 / 152
serious
Total, serious adverse events
33 / 14134 / 152

Outcome results

Primary

Two-Year Event-Free Survival Rate

Event-free survival (EFS) is measured from date of randomization to date of first: documentation of progression that render participant unable to receive planned protocol surgery, off protocol therapy for any reason without subsequent protocol surgery, failure to begin adjuvant therapy within 84 days after surgery, relapse after surgery or death due to any cause. Participants last known to be alive and event-free are censored at date of last contact. All events that occurred before the start of adjuvant therapy were assigned an event date of 84 days.

Time frame: 2 years

ArmMeasureValue (NUMBER)
Arm I (Adjuvant Pembrolizumab)Two-Year Event-Free Survival Rate49 percentage of participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Two-Year Event-Free Survival Rate72 percentage of participants
p-value: 0.004Log Rank
Secondary

Number of Participants Receiving Surgery

To determine the number of participants on each arm who received the surgery planned at randomization.

Time frame: 2.5 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm I (Adjuvant Pembrolizumab)Number of Participants Receiving Surgery151 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants Receiving Surgery127 Participants
Secondary

Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study Drug

Only adverse events that are possibly, probably or definitely related to study drug are reported.

Time frame: Duration of treatment and follow-up until relapse, death, or 3.5 years post randomization.

Population: Eligible participants that received protocol treatment

ArmMeasureGroupValue (NUMBER)
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugDiarrhea1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugAlanine aminotransferase increased3 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugAlkaline phosphatase increased0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugAnemia0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugArthralgia1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugArthritis1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugAspartate aminotransferase increased2 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugBlood and lymphatic system disorders - Other, spec1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugCardiac disorders - Other, specify1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugCardiac troponin I increased0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugChest wall pain1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugCognitive disturbance1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugColitis0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugDehydration0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugAdrenal insufficiency0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugElectrocardiogram QT corrected interval prolonged0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugFall0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugFatigue2 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugFever0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugGallbladder infection1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugHeadache0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugHematoma1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugHepatobiliary disorders - Other, specify1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugHyperglycemia3 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugHypertension2 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugHypokalemia0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugHyponatremia0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugHypothyroidism1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugInfections and infestations - Other, specify1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugLung infection0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugLymphocyte count decreased3 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugMetabolism and nutrition disorders - Other, specif1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugMyalgia1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugMyocarditis1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugMyositis1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugNausea0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugNeutrophil count decreased0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugPlatelet count decreased1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugPneumonitis0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugPruritus2 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugRash maculo-papular4 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugRespiratory failure1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugSepsis0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugSeroma1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugSkin and subcutaneous tissue disorders - Other, sp0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugSkin infection1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugSmall intestinal obstruction1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugSoft tissue infection0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugStroke0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugSurgical and medical procedures - Other, specify0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugSyncope1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugThromboembolic event1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugUrinary tract infection1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugVomiting0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugWhite blood cell decreased0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugWound dehiscence0 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugFebrile neutropenia1 Participants
Arm I (Adjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugWound infection0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugInfections and infestations - Other, specify0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugAdrenal insufficiency1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugVomiting1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugAlanine aminotransferase increased5 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugLung infection2 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugAlkaline phosphatase increased1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugSeroma1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugAnemia1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugLymphocyte count decreased0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugArthralgia0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugSyncope2 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugArthritis0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugMetabolism and nutrition disorders - Other, specif0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugAspartate aminotransferase increased4 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugSkin and subcutaneous tissue disorders - Other, sp1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugBlood and lymphatic system disorders - Other, spec0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugMyalgia0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugCardiac disorders - Other, specify0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugWound dehiscence1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugCardiac troponin I increased1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugMyocarditis2 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugChest wall pain0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugSkin infection1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugCognitive disturbance0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugMyositis0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugColitis1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugThromboembolic event1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugDehydration1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugNausea2 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugDiarrhea2 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugSmall intestinal obstruction0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugElectrocardiogram QT corrected interval prolonged1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugNeutrophil count decreased1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugFall1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugWhite blood cell decreased1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugFatigue0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugFebrile neutropenia0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugPlatelet count decreased0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugFever2 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugSoft tissue infection1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugGallbladder infection0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugPneumonitis2 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugHeadache1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugUrinary tract infection1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugHematoma0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugPruritus1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugHepatobiliary disorders - Other, specify0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugStroke1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugHyperglycemia2 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugRash maculo-papular2 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugHypertension3 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugWound infection2 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugHypokalemia2 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugRespiratory failure0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugHyponatremia1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugSurgical and medical procedures - Other, specify1 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugHypothyroidism0 Participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Number of Participants With Grade 3 Through 5 Adverse Events That Are Related to Study DrugSepsis1 Participants
Secondary

Response Rate

On the neoadjuvant arm, the response rate was assessed after neoadjuvant therapy and before surgical resection. The response rate includes both complete response (CR) and partial response (PR). CR is defined as complete disappearance of all target and non-target lesions, no new lesions, and no disease related symptoms. PR is defined as greater than or equal to 30% decrease under baseline of the sum of all appropriate diameters of all target measurable lesions, no unequivocal progression or non-measurable disease, and no new lesions. The best response rate is calculated from the sequence of objective statuses. CR is defined as two or more objective statuses of CR a minimum of four weeks apart documented before progression or symptomatic deterioration. PR is defined as two or more objective statuses of PR or better a minimum of four weeks apart documented before progression or symptomatic deterioration, but not qualifying as CR.

Time frame: 2 years

Secondary

Two-Year Overall Survival Rate

Overall survival (OS) is measured from date of randomization to date of death due to any cause. Participants known to be alive are censored at date of last contact.

Time frame: 2 years

ArmMeasureValue (NUMBER)
Arm I (Adjuvant Pembrolizumab)Two-Year Overall Survival Rate79 percentage of participants
Arm II (Adjuvant and Neoadjuvant Pembrolizumab)Two-Year Overall Survival Rate87 percentage of participants

Source: ClinicalTrials.gov · Data processed: Aug 5, 2026