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Abraxane With Anti-PD1/PDL1 in Patients With Advanced Urothelial Cancer

ABLE: Phase II, Single Arm, Two-stage Study of Abraxane With Anti-PD1/PDL1 in Patients With Advanced Urothelial Cancer

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03240016
Acronym
ABLE
Enrollment
36
Registered
2017-08-04
Start date
2018-02-08
Completion date
2023-06-23
Last updated
2025-01-16

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

Conditions

Urothelial Carcinoma

Brief summary

This is a phase 2, single arm, two-stage study of abraxane with an anti-PD1/PDL1 (pembrolizumab) in cisplatin-ineligible patients with advanced urothelial cancer. Each cycle last 21-days. All subjects will receive pembrolizumab via IV on day 1, and abraxane via IV on Day 1 and Day 8 of each cycle. Subjects may continue to receive the study regimen until they experience disease progression or unacceptable toxicity.

Interventions

DRUGPembrolizumab

200mg IV D1

DRUGAbraxane

100mg/m\^2 D1 and D8

Sponsors

University of Michigan Rogel Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients with recurrent unresectable locally advanced or metastatic urothelial carcinoma (aka transitional cell carcinoma). * Patients may be either cisplatin-ineligible or platinum-refractory. * Histological or cytologically proven urothelial carcinoma. * Have measurable disease based on RECIST 1.1 * Has urothelial cancer that is not suitable for local therapy administered with curative intent if not already administered. * Must have recovered (i.e., AE \<= Grade 1 or stable) from AEs due to a previously administered agent. * ECOG Performance Status of 0, 1 or 2. (Eastern Cooperative Oncology Group Performance Status: an attempt to quantify cancer patients' general well-being and activities of daily life. The score ranges from 0 to 5 where 0 is asymptomatic and 5 is death.) * Prior neoadjuvant or adjuvant systemic therapy or local intravesical chemotherapy or immunotherapy is permitted. * Adequate organ and marrow function * Women of child-bearing potential must either commit to true abstinence or agree to use, and be able to comply with, effective contraception without interruption, 28 days prior to starting IP therapy, and while on study medication or for a longer period if required by local regulations following the last dose of IP; and have a negative serum pregnancy test result at screening * Male subjects must practice true abstinence or agree to use a condom during sexual contact with a pregnant female or a female of childbearing potential while participating in the study, during dose interruptions and for 6 months following drug discontinuation, even if he has undergone a successful vasectomy. * Patients must have \< Grade 2 pre-existing peripheral neuropathy * Be ≥18 years of age as of date of signing informed consent * Voluntarily agree to participate by providing written informed consent/assent for the trial

Exclusion criteria

* Prior exposure to immune-mediated therapy * History of allogenic organ transplantation that requires ongoing use of immunosuppressive agents is NOT permitted * Active or prior documented autoimmune or inflammatory disorders are NOT permitted * Current or prior use of immunosuppressive medication(s) within 14 days before study treatment is NOT permitted. * Brain metastases or spinal cord compression are NOT permitted unless they have been treated with the patient's condition being stable clinically and radiologically for 28 calendar days and off steroids for at least 14 days prior to the start of study treatment. * Active infection including tuberculosis, hepatitis B, hepatitis C, or human immunodeficiency virus (HIV) is NOT permitted. * Receipt of live attenuated vaccine within 30 days prior to the first study treatment is NOT permitted. * Is currently participating and receiving study therapy or has participated in a study of an investigational agent and received study therapy or used an investigation device within 28 calendar days of the first dose of treatment. * CTCAE Grade \> 1 peripheral neuropathy is NOT permitted * If subjects received major surgery they must have recovered adequately from the toxicity and/or complications from the intervention prior to starting trial therapy * Has a known additional malignancy that is progressing or requires active treatment * Has a history of severe hypersensitivity reaction to nab-paclitaxel or anti-PD1/PDL1 * Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject's participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator * Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial * Pregnancies: 1. Females: nab-paclitaxel can cause harm to an unborn child if given to a pregnant woman. Females may not take part in this study if pregnant or breast-feeding for 6 months after last dose of study drug. 2. Males: Male subjects should avoid fathering a child while receiving study medication and for 6 months after the last dose of study medication. Males must agree to complete abstinence from heterosexual contact or use a condom during sexual contact with a female of child bearing potential while receiving study medication and within 6 months after last dose of study medication. 3. Subjects (both males and female) should practice effective contraception during study and for 6 months after the last dose of study medication (Section 3.1.8 i, ii). * Patients with biliary obstruction or biliary stent are excluded.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Patients That Respond to Treatment24 months post treatment, an average of 7.5 monthsThe Overall Response Rate (ORR) will be the percentage of patients that achieve either complete response (CR) or partial response (PR). CR is defined as the disappearance of all target lesions, determined by two separate observations conducted not less than 4 weeks apart. There can be no appearance of new lesions. PR is defined as at least a 30% decrease in the sum of the longest diameter (LD) of target lesions, taking as reference the baseline sum LD. There can be no appearance of new lesions.

Secondary

MeasureTime frameDescription
Duration of Response24 months post treatmentThe duration of response (DOR) is measured from the time that response (PR or CR) criteria are met until the first date that recurrent or progressive disease is objectively documented. CR is defined as the disappearance of all target lesions, determined by two separate observations conducted not less than 4 weeks apart. There can be no appearance of new lesions. PR is defined as at least a 30% decrease in the sum of the longest diameter (LD) of target lesions, taking as reference the baseline sum LD. There can be no appearance of new lesions.
Progression Free Survival Time24 months post treatmentProgression-free survival (PFS) is defined as the duration of time from start of treatment to time of progression or death. Progressive disease (PD) is defined as at least a 20% increase in the sum of the LD of target lesions, taking as reference the smallest sum LD recorded since the treatment started, or the appearance of one or more new lesions.
Median Number of Patients Alive at 12 and 24 Months12 and 24 months post treatmentOverall survival will be documented as the median number of patients alive at 12 and 24 months.
Median Duration of Therapyfrom the start of therapy, up to 24 months
Percentage of Patients That Completely Respond to Treatment24 months post treatment, an average of 7.5 monthsThe percentage of patients that achieve complete response to treatment. Complete response is defined as the disappearance of all target lesions, determined by two separate observations conducted not less than 4 weeks apart. There can be no appearance of new lesions.

Countries

United States

Participant flow

Participants by arm

ArmCount
Pembrolizumab and Abraxane
Pembrolizumab 200mg IV D1 Abraxane 100mg/m\^2 IV D1 and D8 21 Day Cycles Pembrolizumab: 200mg IV D1 Abraxane: 100mg/m\^2 D1 and D8
36
Total36

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event9
Overall StudyDeath1
Overall StudyPhysician Decision2
Overall StudyWithdrawal by Subject7

Baseline characteristics

CharacteristicPembrolizumab and Abraxane
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
28 Participants
Age, Categorical
Between 18 and 65 years
8 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
34 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
2 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
2 Participants
Race (NIH/OMB)
More than one race
1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
White
31 Participants
Region of Enrollment
United States
36 participants
Sex: Female, Male
Female
4 Participants
Sex: Female, Male
Male
32 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
13 / 36
other
Total, other adverse events
36 / 36
serious
Total, serious adverse events
17 / 36

Outcome results

Primary

Percentage of Patients That Respond to Treatment

The Overall Response Rate (ORR) will be the percentage of patients that achieve either complete response (CR) or partial response (PR). CR is defined as the disappearance of all target lesions, determined by two separate observations conducted not less than 4 weeks apart. There can be no appearance of new lesions. PR is defined as at least a 30% decrease in the sum of the longest diameter (LD) of target lesions, taking as reference the baseline sum LD. There can be no appearance of new lesions.

Time frame: 24 months post treatment, an average of 7.5 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Pembrolizumab and AbraxanePercentage of Patients That Respond to Treatment18 Participants
Secondary

Duration of Response

The duration of response (DOR) is measured from the time that response (PR or CR) criteria are met until the first date that recurrent or progressive disease is objectively documented. CR is defined as the disappearance of all target lesions, determined by two separate observations conducted not less than 4 weeks apart. There can be no appearance of new lesions. PR is defined as at least a 30% decrease in the sum of the longest diameter (LD) of target lesions, taking as reference the baseline sum LD. There can be no appearance of new lesions.

Time frame: 24 months post treatment

ArmMeasureValue (MEDIAN)
Pembrolizumab and AbraxaneDuration of Response4.4 months
Secondary

Median Duration of Therapy

Time frame: from the start of therapy, up to 24 months

ArmMeasureValue (MEDIAN)
Pembrolizumab and AbraxaneMedian Duration of Therapy157 days
Secondary

Median Number of Patients Alive at 12 and 24 Months

Overall survival will be documented as the median number of patients alive at 12 and 24 months.

Time frame: 12 and 24 months post treatment

ArmMeasureGroupValue (NUMBER)
Pembrolizumab and AbraxaneMedian Number of Patients Alive at 12 and 24 Months12 Months0.83 binomial proportion of patients alive
Pembrolizumab and AbraxaneMedian Number of Patients Alive at 12 and 24 Months24 Months0.77 binomial proportion of patients alive
Secondary

Percentage of Patients That Completely Respond to Treatment

The percentage of patients that achieve complete response to treatment. Complete response is defined as the disappearance of all target lesions, determined by two separate observations conducted not less than 4 weeks apart. There can be no appearance of new lesions.

Time frame: 24 months post treatment, an average of 7.5 months

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Pembrolizumab and AbraxanePercentage of Patients That Completely Respond to Treatment3 Participants
Secondary

Progression Free Survival Time

Progression-free survival (PFS) is defined as the duration of time from start of treatment to time of progression or death. Progressive disease (PD) is defined as at least a 20% increase in the sum of the LD of target lesions, taking as reference the smallest sum LD recorded since the treatment started, or the appearance of one or more new lesions.

Time frame: 24 months post treatment

ArmMeasureValue (MEDIAN)
Pembrolizumab and AbraxaneProgression Free Survival Time6.8 months

Source: ClinicalTrials.gov · Data processed: Feb 19, 2026