A Phase 2 interventional study of Sacituzumab Govitecan-hziy and Pembrolizumab in Metastatic Urothelial Cancer, sponsored by Gilead Sciences. Active, not recruiting at 128 sites in 9 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-01.
Sponsored by Gilead Sciences · Phase 2, Interventional, and Treatment
The objective of this study is to evaluate the efficacy and safety of sacituzumab govitecan-hziy monotherapy and with novel combinations in participants with metastatic urothelial cancer (mUC).
Non-Randomized for Cohorts 1,2,3, and 4; Randomized for Cohorts 5, 6, and 7. Cohort 5 has been cancelled, effective December 2023.
Gilead Sciences is the lead sponsor of 680 studies on the registry; 24 are open to participants now.
Of its 259 completed or terminated interventional studies of FDA-regulated products, 249 (96%) have results posted.
Counted across the registry records on this site, refreshed daily.
Key Inclusion Criteria:
Inclusion Criteria for All Cohorts:
Additional Inclusion Criteria for Cohorts 1 to 6:
Cohort 1: Have had progression or recurrence of urothelial cancer following receipt of platinum-containing regimen (cisplatin or carboplatin):
Additional Inclusion Criteria for Cohort 7:
Key Exclusion Criteria:
Exclusion Criteria for All cohorts:
Additional Exclusion Criteria for Cohorts 1 to 6:
Additional Exclusion Criteria for Cohort 7:
Note: Other protocol defined Inclusion/Exclusion criteria may apply.
Participants with urothelial cancer (UC) previously treated with platinum-based and/or checkpoint inhibitors (CPIs) will receive SG 10 mg/kg intravenously (IV) on Days 1 and 8 of a 21-day cycle.
Drug: Sacituzumab Govitecan-hziy
Participants with UC who are ineligible for platinum-based therapy and failed therapy with previous immune CPI therapy will receive SG 10 mg/kg intravenously on Days 1 and 8 of a 21-day cycle.
Drug: Sacituzumab Govitecan-hziy
Participants who have had progression or recurrence of UC following a platinum-containing regimen in the metastatic setting, or progression or recurrence of UC within 12 months of completion of platinum-based therapy as neoadjuvant or adjuvant therapy will receive SG 10 mg/kg intravenously on Days 1 and 8 of a 21-day cycle and pembrolizumab at the standard approved dose (200 mg) only on Day 1 of a 21-day cycle. Lower doses of SG may be tested based on dose-limiting toxicities (DLTs) observed to determine the Recommended Phase 2 Dose (RP2D) of SG in combination with pembrolizumab.
Drug: Sacituzumab Govitecan-hziy · Drug: Pembrolizumab
Participants with UC who have never received therapy with platinum in the metastatic setting or for unresectable locally advanced disease will first receive cisplatin (either at 70 mg/m\^2 on Day 1 of a 21-day cycle or at a split dose of 35 mg/m\^2 on Days 1 and 8 of a 21-day cycle with a maximum body surface area of 2) and sacituzumab govitecan-hziy with maximum dose of 10 mg/kg intravenously on Days 1 and 8 of a 21-day cycle for up to 6 cycles. Based on DLTs observed, two additional lower doses may be tested to determine RP2D of sacituzumab govitecan-hziy in combination with cisplatin. If premature termination of 1 agent occurs due to toxicity, the other agent may be continued to complete up to 6 cycles of therapy. For participants who have not progressed, maintenance therapy will begin with infusions of avelumab 800 mg every 2 weeks beginning on Cycle 1, Day 1 and every 2 weeks thereafter and sacituzumab govitecan-hziy 10 mg/kg on Days 1 and 8 every 21 days.
Drug: Sacituzumab Govitecan-hziy · Drug: Cisplatin · Drug: Avelumab
Participants with UC who have never received therapy with platinum in the metastatic setting or for unresectable locally advanced disease will first receive cisplatin (either at 70 mg/m\^2 on Day 1 of a 21-day cycle or at a split dose of 35 mg/m\^2 on Days 1 and 8 of a 21-day cycle with a maximum body surface area of 2) and sacituzumab govitecan-hziy with maximum dose of 10 mg/kg intravenously on Days 1 and 8 of a 21-day cycle for up to 6 cycles. If premature termination of 1 agent occurs due to toxicity, the other agent may be continued to complete up to 6 cycles of therapy. For participants who have not progressed, maintenance therapy will begin with infusions of sacituzumab govitecan-hziy 10 mg/kg on Days 1 and 8 every 21 days and zimberelimab 360 mg every 3 weeks (Day 1 of a 21-day cycle).
Drug: Sacituzumab Govitecan-hziy · Drug: Cisplatin · Drug: Zimberelimab
Participants in Cohort 5 will have completed 4 to 6 cycles of gemcitabine (GEM) + cisplatin therapy without PD prior to study entry. The safety lead-in will be conducted, in 6 to 8 participants (treated with SG 10 mg/kg IV on Day 1 and Day 8 of a 21-day cycle + ZIM 360 mg IV every 3 weeks on a 21-day cycle). Upon completion of the safety lead-in, participants will receive SG 10 mg/kg IV on Days 1 and 8 of a 21-day cycle followed by ZIM 360 mg IV, every 3 weeks (Q3W) (Day 1 of a 21-day cycle) until PD, unacceptable toxicity, or loss of clinical benefit. participants who must discontinue 1 agent may continue the other until PD, unacceptable toxicity, or loss of clinical benefit.
Drug: Sacituzumab Govitecan-hziy · Drug: Zimberelimab
Participants in Cohort 5 will have completed 4 to 6 cycles of gemcitabine (GEM) + cisplatin therapy without PD prior to study entry. The safety lead-in will be conducted, in 6 to 8 participants (treated with SG 10 mg/kg IV on Day 1 and Day 8 of a 21-day cycle + ZIM 360 mg IV every 3 weeks on a 21-day cycle). Upon completion of the safety lead-in, participants will be randomized to receive avelumab 800 mg IV every 2 weeks (Q2W) until PD, unacceptable toxicity, or loss of clinical benefit.
Drug: Avelumab
Participants in Cohort 5 will have completed 4 to 6 cycles of gemcitabine (GEM) + cisplatin therapy without PD prior to study entry. The safety lead-in will be conducted, in 6 to 8 participants (treated with SG 10 mg/kg IV on Day 1 and Day 8 of a 21-day cycle + ZIM 360 mg IV every 3 weeks on a 21-day cycle). Upon completion of the safety lead-in, participants will be randomized to receive ZIM 360 mg IV Q3W (Day 1 of a 21-day cycle) until PD, unacceptable toxicity, or loss of clinical benefit.
Drug: Zimberelimab
Upon completion of the safety lead-in, participants in Cohort 6 will be randomized and SG will be administered in cisplatin-ineligible participants who have never received therapy in the metastatic setting or for unresectable locally advanced disease. Treatment may be discontinued at any time, but participants will continue to be followed for tumor response until progression is documented, and alternate therapy is initiated. If participants discontinue therapy before evidence of radiologic progression, imaging should continue until radiologic progression is documented, if feasible.
Drug: Sacituzumab Govitecan-hziy
Upon completion of the safety lead-in, participants in Cohort 6 will be randomized and SG in combination with ZIM will be administered in cisplatin-ineligible participants who have never received therapy in the metastatic setting or for unresectable locally advanced disease. The standard approved dose of SG will be used in combination with ZIM. Treatment may be discontinued at any time, but participants will continue to be followed for tumor response until progression is documented or alternate therapy is initiated. If participants discontinue therapy before evidence of radiologic progression, imaging should continue until radiologic progression is documented, if feasible.
Drug: Sacituzumab Govitecan-hziy · Drug: Zimberelimab
Upon completion of the safety lead-in, participants in Cohort 6 will be randomized and SG in combination with ZIM and DOM will be administered in cisplatin-ineligible participants who have never received therapy in the metastatic setting or for unresectable locally advanced disease.
Drug: Sacituzumab Govitecan-hziy · Drug: Zimberelimab · Drug: Domvanalimab
Upon completion of the safety lead-in, participants in Cohort 6 will be randomized and CARBO in combination with GEM will be administered in cisplatin-ineligible participants who have never received therapy in the metastatic setting or for unresectable locally advanced disease. Participants without disease progression as assessed by the investigator after completion of 4 to 6 cycles of therapy may continue with maintenance therapy (avelumab 800 mg every 2 weeks) until loss of clinical benefit.
Drug: Avelumab · Drug: Carboplatin · Drug: Gemcitabine
In the safety lead-in phase, participants will receive a starting dose level of SG 7.5 mg/kg IV and starting dose level of EV 1.25 mg/kg IV will be administered on Days 1 and 8 of each 21-day cycle and ZIM 360 mg IV will be administered on Day 1 of each 21-day cycle. In dose-expansion, participants will receive SG IV and EV IV at the RP2Ds on Days 1 and 8 of each 21-day cycle and ZIM 360 mg IV on Day 1 of each 21-day cycle.
Drug: Sacituzumab Govitecan-hziy · Drug: Zimberelimab · Drug: Enfortumab Vedotin
Upon completion of the Cohort 7 dose-expansion phase, participants will receive SG IV at the RP2D in combination with EV IV at the RP2D, and ZIM 360 mg IV until PD, unacceptable toxicity, or loss of clinical benefit.
Drug: Sacituzumab Govitecan-hziy · Drug: Zimberelimab · Drug: Enfortumab Vedotin
Upon completion of the Cohort 7 dose-expansion phase, participants will receive EV 1.25 mg/kg IV and ZIM 360 mg IV.
Drug: Zimberelimab · Drug: Enfortumab Vedotin
Upon completion of the Cohort 7 dose-expansion phase, participants will receive SG IV at 1 dose level below the RP2D in combination with EV 1.25 mg/kg IV and ZIM 360 mg IV.
Drug: Sacituzumab Govitecan-hziy · Drug: Zimberelimab · Drug: Enfortumab Vedotin
Administered intravenously.
Also known as: IMMU-132, Trodelvy™
Administered per package insert
Also known as: KEYTRUDA®
Administered per package insert
Administered per package insert
Also known as: BAVENCIO®
Administered intravenously
Administered per package insert
Administered per package insert
Administered intravenously
Administered intravenously
Overall Response Rate (ORR) Based on Central Review by Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) Criteria (Cohorts 1 to 4 and 6)
ORR will be defined as the rate of the best overall response as Complete Response (CR) or Partial Response (PR) and based on central review by Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) criteria.
Time frame: Up to Survival Follow-up Visit (maximum of 2 years after Safety Follow-up Visit (30 days after last dose date))
Progression free survival (PFS) Based on Central Review by RECIST 1.1 criteria (Cohort 5)
PFS will be defined as the time from first dose until objective tumor progression, as assessed based on central review, or death, whichever comes first.
Time frame: Up to Survival Follow-up Visit (maximum of 2 years after Safety Follow-up Visit (30 days after last dose date))
ORR Based on Investigator Review by RECIST 1.1 Criteria (Cohort 7)
ORR will be defined as the rate of the best overall response as Complete Response (CR) or Partial Response (PR) and based on investigator review by Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) criteria.
Time frame: Up to Survival Follow-up Visit (maximum of 2 years after Safety Follow-up Visit (30 days after last dose date))
Percentage of Participants Experiencing Treatment Emergent Adverse Events (TEAEs) (Cohort 7)
Time frame: First dose date up to last dose date plus 30 days (approximately 3 years)
Percentage of Participants Experiencing any Clinically Significant Laboratory Abnormalities (Cohort 7)
Time frame: First dose date up to last dose date plus 30 days (approximately 3 years)
Overall Response Rate (ORR)
ORR will be defined as the rate of the best overall response as CR or PR and based on investigator review by RECIST 1.1 criteria for cohorts 3, 4, 6, and 7. ORR will also be evaluated based on investigator review by Modified RECIST 1.1 for Immune-Based Therapeutics (iRECIST 1.1) for Cohorts 3, 4, 6, and 7.
Time frame: Up to Survival Follow-up Visit (maximum of 2 years after Safety Follow-up Visit (30 days after last dose date))
Duration of Response (DOR)
DOR will be calculated from the date of the first evaluation showing documented response, PR, or CR, to the date of the first disease progression or death and based on central and investigator review by RECIST 1.1 criteria for all cohorts. DOR will also be evaluated based on investigator review by iRECIST 1.1 for Cohorts 3, 4, 6, and 7.
Time frame: Up to Survival Follow-up Visit (maximum of 2 years after Safety Follow-up Visit (30 days after last dose date))
Progression-Free Survival (PFS)
PFS is defined as the time from the first dose (Cohorts 1 through 4) or randomization date (Cohorts 5 through 7) until objective tumor progression,or death, whichever comes first and based on central and investigator review by RECIST 1.1 criteria for all cohorts. PFS will also be evaluated based on investigator review by iRECIST 1.1 for Cohorts 3, 4, 6, and 7.
Time frame: Up to Survival Follow-up Visit (maximum of 2 years after Safety Follow-up Visit (30 days after last dose date))
Overall Survival (OS)
OS will be measured from the date of first dose (Cohorts 1 through 4) or randomization date (Cohorts 5 through 7) to death from any cause.
Time frame: Up to Survival Follow-up Visit (maximum of 2 years after Safety Follow-up Visit (30 days after last dose date))
Clinical Benefit Rate (CBR)
CBR is defined as CR + PR + Stable Disease (SD) for at least 6 months and based on central and investigator review by RECIST 1.1 criteria for Cohorts 3, 4, 6, and 7. CBR will also be evaluated based on investigator review by iRECIST 1.1 for Cohorts 3, 4, 6, and 7.
Time frame: Up to Survival Follow-up Visit (maximum of 2 years after Safety Follow-up Visit (30 days after last dose date))
Percentage of Participants Experiencing Treatment Emergent Adverse Events (TEAEs) (Cohorts 3, 4, 5, and 6)
Time frame: First dose date up to last dose date plus 30 days (approximately 3 years)
Percentage of Participants Experiencing any Clinically Significant Laboratory Abnormalities (Cohorts 3, 4, 5, and 6)
Time frame: First dose date up to last dose date plus 30 days (approximately 3 years)
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Plan to share: No
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