Trial Outcomes & Findings for Neoadjuvant Atezolizumab in Surgically Resectable Advanced Cutaneous Squamous Cell Carcinoma (NCT NCT04710498)

NCT ID: NCT04710498

Last Updated: 2025-02-03

Results Overview

Percentage of patients that are able to complete 3 cycles of neoadjuvant atezolizumab and were eligible for curative surgical resection will be measured.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

20 participants

Primary outcome timeframe

9 weeks

Results posted on

2025-02-03

Participant Flow

Participant milestones

Participant milestones
Measure
Atezolizumab
Subjects received a neoadjuvant atezolizumab intravenous (IV) infusion at a fixed dose of 1200 mg on Day 1 (+/- 3 days) of each 21-day cycle for a total of 3 doses prior to surgery, unless there is clinical or radiographic evidence of disease progression. Atezolizumab: Atezolizumab administered intravenous (IV) infusion at a fixed dose of 1200 mg
Overall Study
STARTED
20
Overall Study
COMPLETED
20
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Neoadjuvant Atezolizumab in Surgically Resectable Advanced Cutaneous Squamous Cell Carcinoma

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Atezolizumab
n=20 Participants
Subjects received a neoadjuvant atezolizumab intravenous (IV) infusion at a fixed dose of 1200 mg on Day 1 (+/- 3 days) of each 21-day cycle for a total of 3 doses prior to surgery, unless there is clinical or radiographic evidence of disease progression. Atezolizumab: Atezolizumab administered intravenous (IV) infusion at a fixed dose of 1200 mg
Age, Customized
18 to 29 years
0 Participants
n=5 Participants
Age, Customized
30 to 39 years
0 Participants
n=5 Participants
Age, Customized
40 to 49 years
0 Participants
n=5 Participants
Age, Customized
50 to 59 years
2 Participants
n=5 Participants
Age, Customized
60 to 69 years
6 Participants
n=5 Participants
Age, Customized
70 to 79 years
8 Participants
n=5 Participants
Age, Customized
80 to 89 years
4 Participants
n=5 Participants
Sex: Female, Male
Female
3 Participants
n=5 Participants
Sex: Female, Male
Male
17 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
18 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
Race (NIH/OMB)
White
16 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants
n=5 Participants
Region of Enrollment
United States
20 participants
n=5 Participants

PRIMARY outcome

Timeframe: 9 weeks

Percentage of patients that are able to complete 3 cycles of neoadjuvant atezolizumab and were eligible for curative surgical resection will be measured.

Outcome measures

Outcome measures
Measure
Atezolizumab
n=20 Participants
Subjects received a neoadjuvant atezolizumab intravenous (IV) infusion at a fixed dose of 1200 mg on Day 1 (+/- 3 days) of each 21-day cycle for a total of 3 doses prior to surgery, unless there is clinical or radiographic evidence of disease progression. Atezolizumab: Atezolizumab administered intravenous (IV) infusion at a fixed dose of 1200 mg
Percentage of Patients Who Complete Neoadjuvant Therapy and Were Eligible for Curative Surgical Resection
16 Participants

SECONDARY outcome

Timeframe: After cycle 3 (duration of each cycle 21 days)

Objective response rate will be measured based on RECIST v1.1 criteria at baseline, after cycle 2, and at the time or surgery. Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions and assessed by CT or MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), at least a 30% decrease in the sum of diameters of all target lesions; Progressive Disease (PD), at least a 20% increase in the sum of diameters of target lesions; Overall Response (OR) = CR + PR.

Outcome measures

Outcome measures
Measure
Atezolizumab
n=20 Participants
Subjects received a neoadjuvant atezolizumab intravenous (IV) infusion at a fixed dose of 1200 mg on Day 1 (+/- 3 days) of each 21-day cycle for a total of 3 doses prior to surgery, unless there is clinical or radiographic evidence of disease progression. Atezolizumab: Atezolizumab administered intravenous (IV) infusion at a fixed dose of 1200 mg
Objective Response Rate
Complete response
1 Participants
Objective Response Rate
Partial response
7 Participants
Objective Response Rate
Disease progression
1 Participants
Objective Response Rate
Stable disease
10 Participants
Objective Response Rate
No imaging
1 Participants

SECONDARY outcome

Timeframe: After cycle 3 (duration of each cycle 21 days)

Pathological response will be assessed by local pathological review at baseline, after cycle 2, and and at the time or surgery Patients with no viable tumor seen will be classified as a complete pathological response. Patients with \< 10% of viable tumor will be classified as a major pathological response.

Outcome measures

Outcome measures
Measure
Atezolizumab
n=20 Participants
Subjects received a neoadjuvant atezolizumab intravenous (IV) infusion at a fixed dose of 1200 mg on Day 1 (+/- 3 days) of each 21-day cycle for a total of 3 doses prior to surgery, unless there is clinical or radiographic evidence of disease progression. Atezolizumab: Atezolizumab administered intravenous (IV) infusion at a fixed dose of 1200 mg
Pathological Response Rate
Pathological major response (<= 10% viable tumor cells)
4 Participants
Pathological Response Rate
No pathological response (>10% viable tumor cells)
8 Participants
Pathological Response Rate
No pathological evaluation (surgery declined)
1 Participants
Pathological Response Rate
Pathological complete response (no viable tumor cells)
7 Participants

SECONDARY outcome

Timeframe: 9 weeks

Assessed changes in vital structures preserved following neoadjuvant treatment

Outcome measures

Outcome measures
Measure
Atezolizumab
n=19 Participants
Subjects received a neoadjuvant atezolizumab intravenous (IV) infusion at a fixed dose of 1200 mg on Day 1 (+/- 3 days) of each 21-day cycle for a total of 3 doses prior to surgery, unless there is clinical or radiographic evidence of disease progression. Atezolizumab: Atezolizumab administered intravenous (IV) infusion at a fixed dose of 1200 mg
Changes in Vital Structures
Smaller surgical resection
10 Participants
Changes in Vital Structures
Larger surgical resection
1 Participants

SECONDARY outcome

Timeframe: 9 weeks

Assess change in surgical margins preserved following neoadjuvant treatment

Outcome measures

Outcome measures
Measure
Atezolizumab
n=19 Participants
Subjects received a neoadjuvant atezolizumab intravenous (IV) infusion at a fixed dose of 1200 mg on Day 1 (+/- 3 days) of each 21-day cycle for a total of 3 doses prior to surgery, unless there is clinical or radiographic evidence of disease progression. Atezolizumab: Atezolizumab administered intravenous (IV) infusion at a fixed dose of 1200 mg
Changes in Surgical Margins
Microscopically positive margins
1 Participants
Changes in Surgical Margins
Microscopically negative margins
18 Participants

SECONDARY outcome

Timeframe: 9 weeks

A secondary outcome measure was to assess safety and tolerability of neoadjuvant atezolizumab. Adverse events (AE), serious adverse events (SAE), and treatment-related toxicities were recorded at each study-related visit.

Outcome measures

Outcome measures
Measure
Atezolizumab
n=20 Participants
Subjects received a neoadjuvant atezolizumab intravenous (IV) infusion at a fixed dose of 1200 mg on Day 1 (+/- 3 days) of each 21-day cycle for a total of 3 doses prior to surgery, unless there is clinical or radiographic evidence of disease progression. Atezolizumab: Atezolizumab administered intravenous (IV) infusion at a fixed dose of 1200 mg
Safety and Tolerability of Neoadjuvant Atezolizumab
AE's (patients affected)
20 Participants
Safety and Tolerability of Neoadjuvant Atezolizumab
SAE's (patients affected)
1 Participants

Adverse Events

Atezolizumab

Serious events: 1 serious events
Other events: 20 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Atezolizumab
n=20 participants at risk
Subjects received a neoadjuvant atezolizumab intravenous (IV) infusion at a fixed dose of 1200 mg on Day 1 (+/- 3 days) of each 21-day cycle for a total of 3 doses prior to surgery, unless there is clinical or radiographic evidence of disease progression. Atezolizumab: Atezolizumab administered intravenous (IV) infusion at a fixed dose of 1200 mg
Respiratory, thoracic and mediastinal disorders
Pneumonitis
5.0%
1/20 • Number of events 1 • 9 weeks
Respiratory, thoracic and mediastinal disorders
Acute respiratory failure with Hypoxia
5.0%
1/20 • Number of events 1 • 9 weeks

Other adverse events

Other adverse events
Measure
Atezolizumab
n=20 participants at risk
Subjects received a neoadjuvant atezolizumab intravenous (IV) infusion at a fixed dose of 1200 mg on Day 1 (+/- 3 days) of each 21-day cycle for a total of 3 doses prior to surgery, unless there is clinical or radiographic evidence of disease progression. Atezolizumab: Atezolizumab administered intravenous (IV) infusion at a fixed dose of 1200 mg
Cardiac disorders
Bradycardia
5.0%
1/20 • Number of events 1 • 9 weeks
Ear and labyrinth disorders
Fluid sensation in left ear
5.0%
1/20 • Number of events 1 • 9 weeks
Ear and labyrinth disorders
Lack of Balance
5.0%
1/20 • Number of events 1 • 9 weeks
Ear and labyrinth disorders
Tinnitus
5.0%
1/20 • Number of events 1 • 9 weeks
Endocrine disorders
Hypothyroidism
5.0%
1/20 • Number of events 1 • 9 weeks
Eye disorders
Dry Eye
5.0%
1/20 • Number of events 1 • 9 weeks
Eye disorders
Eye Pain
5.0%
1/20 • Number of events 2 • 9 weeks
Eye disorders
Eye Pressure
10.0%
2/20 • Number of events 2 • 9 weeks
Eye disorders
Eyelid Swelling
5.0%
1/20 • Number of events 1 • 9 weeks
Eye disorders
Periorbital Edema
5.0%
1/20 • Number of events 1 • 9 weeks
General disorders
Facial Pain
5.0%
1/20 • Number of events 1 • 9 weeks
General disorders
Facial Rash
10.0%
2/20 • Number of events 2 • 9 weeks
General disorders
Fatigue
55.0%
11/20 • Number of events 14 • 9 weeks
General disorders
Flu like symptoms
5.0%
1/20 • Number of events 1 • 9 weeks
General disorders
Lack of Appetite
10.0%
2/20 • Number of events 2 • 9 weeks
General disorders
Leg pain
5.0%
1/20 • Number of events 1 • 9 weeks
General disorders
Night Sweats
5.0%
1/20 • Number of events 1 • 9 weeks
General disorders
Weight Loss
10.0%
2/20 • Number of events 2 • 9 weeks
Gastrointestinal disorders
Abdominal Pain
5.0%
1/20 • Number of events 1 • 9 weeks
Gastrointestinal disorders
Constipation
15.0%
3/20 • Number of events 4 • 9 weeks
Gastrointestinal disorders
Diarrhea
5.0%
1/20 • Number of events 1 • 9 weeks
Gastrointestinal disorders
Dyspepsia
5.0%
1/20 • Number of events 1 • 9 weeks
Gastrointestinal disorders
Gout
5.0%
1/20 • Number of events 1 • 9 weeks
Gastrointestinal disorders
Lip Sensitivity
5.0%
1/20 • Number of events 2 • 9 weeks
Gastrointestinal disorders
Nausea
5.0%
1/20 • Number of events 1 • 9 weeks
Gastrointestinal disorders
Oral Dysesthesia
5.0%
1/20 • Number of events 2 • 9 weeks
Injury, poisoning and procedural complications
Infusion Related Reaction
5.0%
1/20 • Number of events 1 • 9 weeks
Investigations
Elevated C-Reactive Protein
5.0%
1/20 • Number of events 1 • 9 weeks
Investigations
Elevated TSH
5.0%
1/20 • Number of events 1 • 9 weeks
Investigations
Increased Creatinine
5.0%
1/20 • Number of events 1 • 9 weeks
Investigations
Increased Total Bilirubin
5.0%
1/20 • Number of events 1 • 9 weeks
Metabolism and nutrition disorders
Hyperlipidemia
5.0%
1/20 • Number of events 1 • 9 weeks
Musculoskeletal and connective tissue disorders
Myalgia
5.0%
1/20 • Number of events 2 • 9 weeks
Musculoskeletal and connective tissue disorders
Nocturnal Muscle Spasms
5.0%
1/20 • Number of events 1 • 9 weeks
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Tumor Pain
35.0%
7/20 • Number of events 8 • 9 weeks
Nervous system disorders
Dizziness, Lightheadedness
5.0%
1/20 • Number of events 1 • 9 weeks
Nervous system disorders
Facial Nerve Paresis
5.0%
1/20 • Number of events 1 • 9 weeks
Nervous system disorders
Headache(s)
15.0%
3/20 • Number of events 5 • 9 weeks
Nervous system disorders
Paresthesia
10.0%
2/20 • Number of events 2 • 9 weeks
Nervous system disorders
Peripheral Neuropathy
5.0%
1/20 • Number of events 1 • 9 weeks
Psychiatric disorders
Insomnia
5.0%
1/20 • Number of events 1 • 9 weeks
Respiratory, thoracic and mediastinal disorders
Cough
5.0%
1/20 • Number of events 1 • 9 weeks
Respiratory, thoracic and mediastinal disorders
Dyspnea
5.0%
1/20 • Number of events 1 • 9 weeks
Respiratory, thoracic and mediastinal disorders
Nasal/Sinus Congestion
5.0%
1/20 • Number of events 1 • 9 weeks
Respiratory, thoracic and mediastinal disorders
Sore Throat
10.0%
2/20 • Number of events 2 • 9 weeks
Skin and subcutaneous tissue disorders
Cheek Fistula
5.0%
1/20 • Number of events 1 • 9 weeks
Skin and subcutaneous tissue disorders
Facial Rash
10.0%
2/20 • Number of events 2 • 9 weeks
Skin and subcutaneous tissue disorders
Fungal Rash/Dermatitis
5.0%
1/20 • Number of events 1 • 9 weeks
Skin and subcutaneous tissue disorders
Rash acneiform
5.0%
1/20 • Number of events 1 • 9 weeks

Additional Information

Dr. Vasu Divi

Stanford University

Phone: 650-725-5968

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place