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Study of the Combination of Acalabrutinib (ACP-196) and Pembrolizumab in Advanced Head and Neck Squamous Cell Carcinoma

A Phase 2 Proof-of-Concept Study of the Combination of ACP-196 and Pembrolizumab in Subjects With Advanced Head and Neck Squamous Cell Carcinoma

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02454179
Acronym
KEYNOTE147
Enrollment
78
Registered
2015-05-27
Start date
2015-05-31
Completion date
2018-07-31
Last updated
2019-09-12

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

Conditions

Squamous Cell Carcinoma of the Head and Neck

Brief summary

Study of the combination of acalabrutinib (ACP-196) and pembrolizumab in subjects with advanced head and neck squamous cell carcinoma.

Interventions

DRUGpembrolizumab
DRUGAcalabrutinib

Sponsors

Merck Sharp & Dohme LLC
CollaboratorINDUSTRY
Acerta Pharma BV
Lead SponsorINDUSTRY

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

* Men and women ≥ 18 years of age * Histologically or cytologically confirmed recurrent, metastatic or unresectable HNSCC of the oral cavity, oropharynx, hypopharynx, and larynx that that has either progressed during or after platinum-based chemotherapy administered for metastatic disease or has recurred during or within 6 months after the completion of platinum-based neoadjuvant or adjuvant therapy * Presence of radiographically measurable disease as defined by RECIST 1.1 * ECOG performance status of 0 or 1

Exclusion criteria

* Prior malignancy (other than HNSCC), except for adequately treated basal cell or squamous cell skin cancer, in situ cervical cancer, or other cancer from which the subject has been disease free for ≥ 2 years or which will not limit survival to \< 2 years * Known central nervous system metastases and/or carcinomatous meningitis * A life-threatening illness, medical condition (including psychiatric conditions) or organ system dysfunction which, in the investigator's opinion, could compromise the subject's safety * Significant cardiovascular disease such as uncontrolled or symptomatic arrhythmias, congestive heart failure, or myocardial infarction within 6 months of starting study drug

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Overall Response52 weeksPer Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

Countries

United States

Participant flow

Participants by arm

ArmCount
Mono Therapy Arm - Pembrolizumab
Pembrolizumab 200mg administered as an intravenous (IV) infusion every 3 weeks (Q3W).
39
Combo Therapy Arm - Acalabrutinib + Pembrolizumab
Acalabrutinib 100mg PO BID plus Pembrolizumab 200mg administered as an intravenous (IV) infusion every 3 weeks (Q3W).
37
Total76

Baseline characteristics

CharacteristicMono Therapy Arm - PembrolizumabTotalCombo Therapy Arm - Acalabrutinib + Pembrolizumab
Age, Continuous62.1 Years
STANDARD_DEVIATION 10.45
61.8 Years
STANDARD_DEVIATION 10.71
61.4 Years
STANDARD_DEVIATION 11.12
Ethnicity (NIH/OMB)
Hispanic or Latino
4 Participants6 Participants2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
35 Participants70 Participants35 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 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
0 Participants6 Participants6 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
37 Participants66 Participants29 Participants
Region of Enrollment
United States
39 Participants76 Participants37 Participants
Sex: Female, Male
Female
5 Participants7 Participants2 Participants
Sex: Female, Male
Male
34 Participants69 Participants35 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
26 / 3923 / 37
other
Total, other adverse events
39 / 3937 / 37
serious
Total, serious adverse events
12 / 3925 / 37

Outcome results

Primary

Number of Participants With Overall Response

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

Time frame: 52 weeks

Population: The study participants had to have a minimum of one scan (for tumor assessment) after randomization/treatment in order to be considered analyzed.~And some of the participants didn't make it to Wk 7 of treatment, hence reduction in the number of subjects analyzed.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Mono Therapy Arm - PembrolizumabNumber of Participants With Overall Response7 Participants
Combo Therapy Arm - Acalabrutinib and PembrolizumabNumber of Participants With Overall Response5 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026