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Study of the Combination of ACP-196 and Pembrolizumab in Subjects With Platinum Resistant Urothelial Bladder Cancer

Randomized Phase 2 Trial of ACP-196 and Pembrolizumab Immunotherapy Dual CHECKpoint Inhibition In Platinum Resistant Metastatic Urothelial Carcinoma (RAPID CHECK Study)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02351739
Acronym
KEYNOTE143
Enrollment
78
Registered
2015-01-30
Start date
2015-04-30
Completion date
2018-04-30
Last updated
2019-09-10

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

Conditions

Metastatic Urothelial Carcinoma

Brief summary

Study of the Combination of ACP-196 and Pembrolizumab in Subjects With Platinum Resistant Metastatic Urothelial Cancer

Interventions

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 urothelial carcinoma of the bladder or mixed histology bladder cancer * Metastatic bladder cancer with disease progression on or after platinum-based chemotherapy * Any primary site of urothelial carcinoma including upper tract, renal pelvis, bladder, and ureters * Prior therapy with ≥ 1 systemic chemotherapy regimens for urothelial carcinoma * Presence of radiographically measurable disease (defined as the presence of ≥ 1 lesion that measures ≥ 10 mm \[≥ 15 mm for lymph nodes\] * ECOG performance status of 0 or 1

Exclusion criteria

* Prior malignancy (other than bladder cancer), 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 of which will not limit survival to \< 2 years. * Known central nervous system metastases and/or carcinomatous meningitis * Malabsorption syndrome, disease significantly affecting gastrointestinal function * Significant cardiovascular disease such as uncontrolled or symptomatic arrhythmias, congestive heart failure, or myocardial infarction within 6 months of screening

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Overall ResponseEvery 12 weeks for up to 2 years.Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) 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
Pembrolizumab
Arm 1: pembrolizumab monotherapy pembrolizumab
35
ACP-196 in Combination With Pembrolizumab
Arm 2: ACP-196 in combination with pembrolizumab ACP-196 in combination with pembrolizumab
40
Total75

Baseline characteristics

CharacteristicACP-196 in Combination With PembrolizumabTotalPembrolizumab
Age, Continuous66.4 Years
STANDARD_DEVIATION 8.53
66.1 Years
STANDARD_DEVIATION 9.74
65.8 Years
STANDARD_DEVIATION 11.08
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants1 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
40 Participants74 Participants34 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Asian
1 Participants1 Participants0 Participants
Race (NIH/OMB)
Black or African American
1 Participants3 Participants2 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
1 Participants1 Participants0 Participants
Race (NIH/OMB)
White
37 Participants69 Participants32 Participants
Sex: Female, Male
Female
29 Participants57 Participants28 Participants
Sex: Female, Male
Male
11 Participants18 Participants7 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
25 / 3531 / 40
other
Total, other adverse events
34 / 3539 / 40
serious
Total, serious adverse events
15 / 3523 / 40

Outcome results

Primary

Number of Participants With Overall Response

Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) 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: Every 12 weeks for up to 2 years.

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)
PembrolizumabNumber of Participants With Overall Response9 Participants
ACP-196 in Combination With PembrolizumabNumber of Participants With Overall Response8 Participants

Source: ClinicalTrials.gov · Data processed: Feb 24, 2026