Trial Outcomes & Findings for Reduced-intensity Therapy for Oropharyngeal Cancer in Non-smoking HPV-16 Positive Patients (NCT NCT01663259)

NCT ID: NCT01663259

Last Updated: 2021-01-19

Results Overview

Number of patients whose tumors recur (includes local, regional, and distant recurrence; and second primaries). Note: Research indicates that freedom from local and regional progression (FFLRP) is a more meaningful measure. Therefore, the percentage of patients with FFLRP is included below as a Post-Hoc measure.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

43 participants

Primary outcome timeframe

2 years

Results posted on

2021-01-19

Participant Flow

43 patients consented, but one never began treatment.

Participant milestones

Participant milestones
Measure
Cetuximab + Radiotherapy
Patients received a single loading dose public) of cetuximab 400 mg/m (Day 0), then weekly cetuximab 250 mg/m concurrent with radiation. Within approximately 4 days after first (loading) dose of cetuximab, patients received radiation administered as 70 Gy in 35 fractions to the gross tumor, 50-60 Gy to subclinical target volumes.
Overall Study
STARTED
42
Overall Study
COMPLETED
42
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Reduced-intensity Therapy for Oropharyngeal Cancer in Non-smoking HPV-16 Positive Patients

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Cetuximab + Radiotherapy
n=42 Participants
Patients received a single loading dose public) of cetuximab 400 mg/m (Day 0), then weekly cetuximab 250 mg/m concurrent with radiation. Within approximately 4 days after first (loading) dose of cetuximab, patients received radiation administered as 70 Gy in 35 fractions to the gross tumor, 50-60 Gy to subclinical target volumes.
Age, Continuous
58 years
n=99 Participants
Sex: Female, Male
Female
6 Participants
n=99 Participants
Sex: Female, Male
Male
36 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
40 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
Race (NIH/OMB)
Asian
0 Participants
n=99 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=99 Participants
Race (NIH/OMB)
White
41 Participants
n=99 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=99 Participants
Region of Enrollment
United States
42 Participants
n=99 Participants
Smoking
Yes, current
1 Participants
n=99 Participants
Smoking
Yes, past
5 Participants
n=99 Participants
Smoking
No
36 Participants
n=99 Participants
Cancer Location
Oropharynx
42 Participants
n=99 Participants
Cancer Location
Oral Cavity
0 Participants
n=99 Participants
Cancer Location
Auditory Canal
0 Participants
n=99 Participants
Cancer Location
Hypopharynx
0 Participants
n=99 Participants
Cancer Location
Unknown Primary
0 Participants
n=99 Participants
HPV Status
Positive
42 Participants
n=99 Participants
HPV Status
Negative
0 Participants
n=99 Participants

PRIMARY outcome

Timeframe: 2 years

Number of patients whose tumors recur (includes local, regional, and distant recurrence; and second primaries). Note: Research indicates that freedom from local and regional progression (FFLRP) is a more meaningful measure. Therefore, the percentage of patients with FFLRP is included below as a Post-Hoc measure.

Outcome measures

Outcome measures
Measure
Cetuximab + Radiotherapy
n=42 Participants
Patients received a single loading dose of cetuximab and a Cetuximab infusion delivered once a week during radiotherapy.
Rate of Recurrence
8 Participants

SECONDARY outcome

Timeframe: 3 years

In order to evaluate the toxicity in patients receiving cetuximab-RT, adverse events were clustered into three categories: None, Mild-Moderate (grade 1 or 2), and Severe (grade 3 or 4). Graded according to the Common Terminology Criteria for Adverse Events version 4.0 (CTCAE v4).

Outcome measures

Outcome measures
Measure
Cetuximab + Radiotherapy
n=42 Participants
Patients received a single loading dose of cetuximab and a Cetuximab infusion delivered once a week during radiotherapy.
Number of Participants With Adverse Events
None
0 Participants
Number of Participants With Adverse Events
Mild-Moderate
14 Participants
Number of Participants With Adverse Events
Severe
28 Participants

SECONDARY outcome

Timeframe: 3 years

Toxicities are measured by number of participants who experience one or more types or indicator of toxicity, shown as all grades and grades 3-4. As each participant could have multiple toxicities, the number of incidents outnumbers the number of participants. Toxicities graded according to the CTCAE v4.

Outcome measures

Outcome measures
Measure
Cetuximab + Radiotherapy
n=42 Participants
Patients received a single loading dose of cetuximab and a Cetuximab infusion delivered once a week during radiotherapy.
Treatment Related Toxicities
All Grades : Cutaneous Toxicity
38 participants
Treatment Related Toxicities
All Grades : Mucositis
42 participants
Treatment Related Toxicities
All Grades : Dysphagia
37 participants
Treatment Related Toxicities
All Grades : Hematologic Toxicity
13 participants
Treatment Related Toxicities
Grades 3-4 : Cutaneous Toxicity
3 participants
Treatment Related Toxicities
Grades 3-4 : Mucositis
19 participants
Treatment Related Toxicities
Grades 3-4 : Dysphagia
7 participants
Treatment Related Toxicities
Grades 3-4 : Hematologic Toxicity
6 participants

SECONDARY outcome

Timeframe: Day 7

Population: 8 participants had a sample size sufficient for EGFR analysis.

The ratio (fold change) of tumor EGFR post/pre loading dose of cetuximab. Reported as the mean of fold changes across all participants who had an evaluable tumor sample.

Outcome measures

Outcome measures
Measure
Cetuximab + Radiotherapy
n=8 Participants
Patients received a single loading dose of cetuximab and a Cetuximab infusion delivered once a week during radiotherapy.
Mean Change in Tumor Epidermal Growth Factor Receptor (EGFR)
1.2 fold change
Interval 0.1 to 2.5

SECONDARY outcome

Timeframe: Day 7

Population: 2 participants had a sample size sufficient for pEGFR analysis.

The ratio (fold change) of tumor pEGFR post/pre loading dose of cetuximab. Reported as the mean of fold changes across all participants who had an evaluable tumor sample.

Outcome measures

Outcome measures
Measure
Cetuximab + Radiotherapy
n=2 Participants
Patients received a single loading dose of cetuximab and a Cetuximab infusion delivered once a week during radiotherapy.
Mean Change in Tumor Phosphorylated EGFR (pEGFR)
0.55 fold change
Interval 0.5 to 0.6

SECONDARY outcome

Timeframe: Day 7

Population: 7 participants had a sample size sufficient for EGFR analysis.

Normal mucosa EGFR was assessed for comparison with EGFR in tumor sample. The fold change in tumor EGFR level post/pre loading dose of cetuximab, relative to fold change in normal mucosa EGFR level post/pre loading dose of cetuximab was summarized across all participants who had an evaluable tumor sample and normal mucosa sample. The value reported is the ratio of fold change in tumor/fold change in buccal EGFR.

Outcome measures

Outcome measures
Measure
Cetuximab + Radiotherapy
n=7 Participants
Patients received a single loading dose of cetuximab and a Cetuximab infusion delivered once a week during radiotherapy.
Change in Tumor EGFR Level Relative to EGFR in Normal Mucosa
1.31 ratio
Interval 0.1 to 2.5

POST_HOC outcome

Timeframe: 2 years

Percentage of participants who survived without recurrent disease, from the time of enrollment to 1 and 2 years.

Outcome measures

Outcome measures
Measure
Cetuximab + Radiotherapy
n=42 Participants
Patients received a single loading dose of cetuximab and a Cetuximab infusion delivered once a week during radiotherapy.
Disease Free Survival Rate
1 year
85.7 Percentage of participants
Interval 75.8 to 97.0
Disease Free Survival Rate
2 year
81 Percentage of participants
Interval 69.9 to 93.7

POST_HOC outcome

Timeframe: 2 years

Percentage of participants alive at 1 and 2 years after enrollment.

Outcome measures

Outcome measures
Measure
Cetuximab + Radiotherapy
n=42 Participants
Patients received a single loading dose of cetuximab and a Cetuximab infusion delivered once a week during radiotherapy.
Overall Survival Rate
1 year
97.6 Percentage of participants
Interval 93.1 to 100.0
Overall Survival Rate
2 year
95.2 Percentage of participants
Interval 89.0 to 100.0

POST_HOC outcome

Timeframe: 2 years

Percentage of participants without first local or regional recurrence at one and at two years from the time of enrollment. Local recurrence refers to mouth or throat; regional recurrence refers to nearby lymph nodes.

Outcome measures

Outcome measures
Measure
Cetuximab + Radiotherapy
n=42 Participants
Patients received a single loading dose of cetuximab and a Cetuximab infusion delivered once a week during radiotherapy.
Freedom From Local Regional Progression (FFLRP)
1 year
87.9 percentage of participants
Interval 75.8 to 97.0
Freedom From Local Regional Progression (FFLRP)
2 years
87.9 percentage of participants
Interval 69.9 to 93.7

Adverse Events

Cetuximab

Serious events: 9 serious events
Other events: 42 other events
Deaths: 2 deaths

Serious adverse events

Serious adverse events
Measure
Cetuximab
n=42 participants at risk
Patients received a single loading dose of cetuximab and a Cetuximab infusion delivered once a week during radiotherapy.
Gastrointestinal disorders
Colitis
2.4%
1/42 • Number of events 1 • 3 years
Gastrointestinal disorders
Gastrointestinal disorders - other
2.4%
1/42 • Number of events 1 • 3 years
Gastrointestinal disorders
Mucositis oral
9.5%
4/42 • Number of events 4 • 3 years
Gastrointestinal disorders
Nausea
2.4%
1/42 • Number of events 1 • 3 years
Gastrointestinal disorders
Oral pain
2.4%
1/42 • Number of events 1 • 3 years
Gastrointestinal disorders
Vomiting
2.4%
1/42 • Number of events 1 • 3 years
Infections and infestations
Lung infection
2.4%
1/42 • Number of events 1 • 3 years
Investigations
Alanine aminotransferase increased
2.4%
1/42 • Number of events 1 • 3 years
Investigations
Aspartate aminotransferase increased
2.4%
1/42 • Number of events 1 • 3 years
Investigations
Lymphocyte count decreased
2.4%
1/42 • Number of events 1 • 3 years
Metabolism and nutrition disorders
Dehydration
2.4%
1/42 • Number of events 1 • 3 years
Nervous system disorders
Cognitive disturbance
2.4%
1/42 • Number of events 1 • 3 years
Psychiatric disorders
Confusion
2.4%
1/42 • Number of events 1 • 3 years
Respiratory, thoracic and mediastinal disorders
Aspiration
2.4%
1/42 • Number of events 1 • 3 years

Other adverse events

Other adverse events
Measure
Cetuximab
n=42 participants at risk
Patients received a single loading dose of cetuximab and a Cetuximab infusion delivered once a week during radiotherapy.
Blood and lymphatic system disorders
Anemia
11.9%
5/42 • Number of events 5 • 3 years
Blood and lymphatic system disorders
Lymph node pain
2.4%
1/42 • Number of events 1 • 3 years
Cardiac disorders
Sinus tachycardia
7.1%
3/42 • Number of events 5 • 3 years
Ear and labyrinth disorders
External ear inflammation
2.4%
1/42 • Number of events 1 • 3 years
Gastrointestinal disorders
Abdominal pain
2.4%
1/42 • Number of events 1 • 3 years
Gastrointestinal disorders
Constipation
21.4%
9/42 • Number of events 9 • 3 years
Gastrointestinal disorders
Diarrhea
9.5%
4/42 • Number of events 6 • 3 years
Gastrointestinal disorders
Dry mouth
95.2%
40/42 • Number of events 92 • 3 years
Gastrointestinal disorders
Dyspepsia
2.4%
1/42 • Number of events 1 • 3 years
Gastrointestinal disorders
Dysphagia
95.2%
40/42 • Number of events 96 • 3 years
Gastrointestinal disorders
Esophagitis
97.6%
41/42 • Number of events 84 • 3 years
Gastrointestinal disorders
Gastroesophageal reflux disease
4.8%
2/42 • Number of events 2 • 3 years
Gastrointestinal disorders
Gastrointestinal disorders - Other
50.0%
21/42 • Number of events 51 • 3 years
Gastrointestinal disorders
Mucositis oral
100.0%
42/42 • Number of events 115 • 3 years
Gastrointestinal disorders
Nausea
57.1%
24/42 • Number of events 46 • 3 years
Gastrointestinal disorders
Oral pain
14.3%
6/42 • Number of events 15 • 3 years
Gastrointestinal disorders
Salivary duct inflammation
28.6%
12/42 • Number of events 18 • 3 years
Gastrointestinal disorders
Vomiting
21.4%
9/42 • Number of events 16 • 3 years
General disorders
Chills
14.3%
6/42 • Number of events 7 • 3 years
General disorders
Facial pain
2.4%
1/42 • Number of events 1 • 3 years
General disorders
Fatigue
61.9%
26/42 • Number of events 45 • 3 years
General disorders
Fever
9.5%
4/42 • Number of events 5 • 3 years
General disorders
Flu like symptoms
2.4%
1/42 • Number of events 1 • 3 years
General disorders
Infusion related reaction
7.1%
3/42 • Number of events 3 • 3 years
General disorders
Pain
2.4%
1/42 • Number of events 1 • 3 years
Immune system disorders
Allergic reaction
2.4%
1/42 • Number of events 1 • 3 years
Infections and infestations
Lung infection
2.4%
1/42 • Number of events 1 • 3 years
Infections and infestations
Papulopustular rash
4.8%
2/42 • Number of events 4 • 3 years
Infections and infestations
Paronychia
7.1%
3/42 • Number of events 3 • 3 years
Injury, poisoning and procedural complications
Dermatitis radiation
90.5%
38/42 • Number of events 64 • 3 years
Injury, poisoning and procedural complications
Fall
2.4%
1/42 • Number of events 1 • 3 years
Investigations
Alanine aminotransferase increased
21.4%
9/42 • Number of events 13 • 3 years
Investigations
Alkaline phosphatase increased
4.8%
2/42 • Number of events 2 • 3 years
Investigations
Aspartate aminotransferase increased
16.7%
7/42 • Number of events 9 • 3 years
Investigations
Blood bilirubin increased
7.1%
3/42 • Number of events 3 • 3 years
Investigations
Creatinine increased
2.4%
1/42 • Number of events 1 • 3 years
Investigations
Lymphocyte count decreased
33.3%
14/42 • Number of events 43 • 3 years
Investigations
Platelet count decreased
9.5%
4/42 • Number of events 4 • 3 years
Investigations
Urine output decreased
4.8%
2/42 • Number of events 2 • 3 years
Investigations
Weight loss
26.2%
11/42 • Number of events 14 • 3 years
Investigations
White blood cell decreased
9.5%
4/42 • Number of events 8 • 3 years
Metabolism and nutrition disorders
Anorexia
19.0%
8/42 • Number of events 10 • 3 years
Metabolism and nutrition disorders
Dehydration
42.9%
18/42 • Number of events 31 • 3 years
Metabolism and nutrition disorders
Hyperglycemia
16.7%
7/42 • Number of events 11 • 3 years
Metabolism and nutrition disorders
Hyperkalemia
4.8%
2/42 • Number of events 3 • 3 years
Metabolism and nutrition disorders
Hypernatremia
2.4%
1/42 • Number of events 1 • 3 years
Metabolism and nutrition disorders
Hypoalbuminemia
4.8%
2/42 • Number of events 2 • 3 years
Metabolism and nutrition disorders
Hypocalcemia
2.4%
1/42 • Number of events 1 • 3 years
Metabolism and nutrition disorders
Hypoglycemia
4.8%
2/42 • Number of events 3 • 3 years
Metabolism and nutrition disorders
Hypokalemia
2.4%
1/42 • Number of events 5 • 3 years
Metabolism and nutrition disorders
Hypomagnesemia
2.4%
1/42 • Number of events 1 • 3 years
Metabolism and nutrition disorders
Hyponatremia
2.4%
1/42 • Number of events 1 • 3 years
Metabolism and nutrition disorders
Hypophosphatemia
2.4%
1/42 • Number of events 1 • 3 years
Musculoskeletal and connective tissue disorders
Arthralgia
2.4%
1/42 • Number of events 1 • 3 years
Musculoskeletal and connective tissue disorders
Back pain
2.4%
1/42 • Number of events 1 • 3 years
Musculoskeletal and connective tissue disorders
Generalized muscle weakness
11.9%
5/42 • Number of events 6 • 3 years
Musculoskeletal and connective tissue disorders
Musculoskeletal and connective tissue disorder - Other
7.1%
3/42 • Number of events 3 • 3 years
Musculoskeletal and connective tissue disorders
Myalgia
4.8%
2/42 • Number of events 2 • 3 years
Musculoskeletal and connective tissue disorders
Neck pain
4.8%
2/42 • Number of events 2 • 3 years
Musculoskeletal and connective tissue disorders
Trismus
7.1%
3/42 • Number of events 4 • 3 years
Nervous system disorders
Akathisia
2.4%
1/42 • Number of events 1 • 3 years
Nervous system disorders
Dizziness
7.1%
3/42 • Number of events 3 • 3 years
Nervous system disorders
Dysgeusia
100.0%
42/42 • Number of events 91 • 3 years
Nervous system disorders
Dysphasia
2.4%
1/42 • Number of events 1 • 3 years
Nervous system disorders
Headache
21.4%
9/42 • Number of events 11 • 3 years
Nervous system disorders
Myelitis
4.8%
2/42 • Number of events 2 • 3 years
Nervous system disorders
Paresthesia
2.4%
1/42 • Number of events 1 • 3 years
Nervous system disorders
Peripheral motor neuropathy
2.4%
1/42 • Number of events 1 • 3 years
Nervous system disorders
Tremor
2.4%
1/42 • Number of events 1 • 3 years
Psychiatric disorders
Anxiety
4.8%
2/42 • Number of events 2 • 3 years
Psychiatric disorders
Confusion
2.4%
1/42 • Number of events 2 • 3 years
Psychiatric disorders
Depression
2.4%
1/42 • Number of events 1 • 3 years
Renal and urinary disorders
Hematuria
2.4%
1/42 • Number of events 1 • 3 years
Renal and urinary disorders
Urinary frequency
2.4%
1/42 • Number of events 1 • 3 years
Renal and urinary disorders
Urine discoloration
2.4%
1/42 • Number of events 1 • 3 years
Respiratory, thoracic and mediastinal disorders
Cough
2.4%
1/42 • Number of events 1 • 3 years
Respiratory, thoracic and mediastinal disorders
Dyspnea
4.8%
2/42 • Number of events 2 • 3 years
Respiratory, thoracic and mediastinal disorders
Hoarseness
4.8%
2/42 • Number of events 2 • 3 years
Respiratory, thoracic and mediastinal disorders
Laryngeal hemorrhage
2.4%
1/42 • Number of events 1 • 3 years
Respiratory, thoracic and mediastinal disorders
Laryngeal inflammation
7.1%
3/42 • Number of events 3 • 3 years
Respiratory, thoracic and mediastinal disorders
Nasal congestion
7.1%
3/42 • Number of events 3 • 3 years
Respiratory, thoracic and mediastinal disorders
Pharyngolaryngeal pain
2.4%
1/42 • Number of events 1 • 3 years
Respiratory, thoracic and mediastinal disorders
Productive cough
2.4%
1/42 • Number of events 2 • 3 years
Respiratory, thoracic and mediastinal disorders
Sore throat
11.9%
5/42 • Number of events 7 • 3 years
Respiratory, thoracic and mediastinal disorders
Voice alteration
2.4%
1/42 • Number of events 1 • 3 years
Respiratory, thoracic and mediastinal disorders
Wheezing
2.4%
1/42 • Number of events 1 • 3 years
Skin and subcutaneous tissue disorders
Dry skin
19.0%
8/42 • Number of events 8 • 3 years
Skin and subcutaneous tissue disorders
Erythema multiforme
2.4%
1/42 • Number of events 1 • 3 years
Skin and subcutaneous tissue disorders
Fat atrophy
2.4%
1/42 • Number of events 1 • 3 years
Skin and subcutaneous tissue disorders
Nail loss
4.8%
2/42 • Number of events 2 • 3 years
Skin and subcutaneous tissue disorders
Nail ridging
7.1%
3/42 • Number of events 3 • 3 years
Skin and subcutaneous tissue disorders
Pain of skin
2.4%
1/42 • Number of events 1 • 3 years
Skin and subcutaneous tissue disorders
Pruritus
11.9%
5/42 • Number of events 5 • 3 years
Skin and subcutaneous tissue disorders
Rash acneiform
83.3%
35/42 • Number of events 59 • 3 years
Skin and subcutaneous tissue disorders
Rash maculo-papular
2.4%
1/42 • Number of events 1 • 3 years
Skin and subcutaneous tissue disorders
Scalp pain
2.4%
1/42 • Number of events 1 • 3 years
Skin and subcutaneous tissue disorders
Skin and subcutaneous tissue disorders - Other
4.8%
2/42 • Number of events 3 • 3 years
Skin and subcutaneous tissue disorders
Skin atrophy
2.4%
1/42 • Number of events 1 • 3 years
Skin and subcutaneous tissue disorders
Skin ulceration
2.4%
1/42 • Number of events 1 • 3 years
Vascular disorders
Hypotension
2.4%
1/42 • Number of events 2 • 3 years
Vascular disorders
Superficial thrombophlebitis
2.4%
1/42 • Number of events 1 • 3 years

Additional Information

Michelle Mierzwa

University of Michigan Rogel Cancer Center

Phone: 734-936-7810

Results disclosure agreements

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