PROSPER: Phase III randomized study comparing perioperative nivolumab versus observation in patients with renal cell carcinoma (RCC) undergoing nephrectomy (ECOG-ACRIN EA8143).

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. TPS5101-TPS5101
Author(s):  
Naomi B. Haas ◽  
Maneka Puligandla ◽  
Mohamad E. Allaf ◽  
David F. McDermott ◽  
Charles G. Drake ◽  
...  
Keyword(s):  
Immune System ◽  
Clinical Outcomes ◽  
Clinical Stage ◽  
Randomized Study ◽  
Standard Of Care ◽  
Phase Iii ◽  
Perioperative Therapy ◽  
Tumor Biopsy ◽  
Care Surgery ◽  
Metastatic Rcc

TPS5101 Background: There is no standard adjuvant systemic therapy that increases overall survival (OS) over surgery alone for non-metastatic RCC. Anti-PD-1 nivolumab (nivo) improves OS in metastatic RCC and is well tolerated. In mouse models, priming the immune system prior to surgery with anti-PD-1 results in superior OS compared to adjuvant dosing. Remarkable pathologic responses have been seen with neoadjuvant PD-1 in multiple ph 2 studies in bladder, lung and breast cancers. Phase 2 neoadjuvant RCC trials of nivo show preliminary feasibility and safety with no surgical delays. PROSPER RCC seeks to improve clinical outcomes by priming the immune system with neoadjuvant nivo prior to nephrectomy followed by continued immune system engagement with adjuvant blockade in patients (pts) with high risk RCC compared to standard of care surgery alone. Methods: This global, unblinded, phase 3 National Clinical Trials Network study is accruing pts with clinical stage ≥T2 or TanyN+ RCC of any histology planned for radical or partial nephrectomy. Select oligometastatic disease is permitted if the pt can be rendered ‘no evidence of disease’ within 12 weeks of nephrectomy (≤3 metastases; no brain, bone or liver). In the investigational arm, nivo is administered 480mg IV q4 weeks with 1 dose prior to surgery followed by 9 adjuvant doses. The control arm is nephrectomy followed by standard of care surveillance. There is no placebo. Baseline tumor biopsy is required only in the nivo arm but encouraged in both. Randomized pts are stratified by clinical T stage, node positivity, and M stage. 805 pts provide 84.2% power to detect a 14.4% absolute benefit in recurrence-free survival at 5 years assuming the ASSURE historical control of ~56% to 70% (HR = 0.70). The study is powered to evaluate a significant increase in OS (HR 0.67). Critical perioperative therapy considerations such as safety, feasibility, and quality of life metrics are integrated. PROSPER RCC embeds a wealth of translational studies to examine the contribution of the baseline immune milieu and neoadjuvant priming with anti-PD-1 on clinical outcomes. As of February 2020, 396 patients have been enrolled. Clinical trial information: NCT03055013 .

PROSPER: Phase III RandOmized Study Comparing PERioperative nivolumab versus observation in patients with renal cell carcinoma (RCC) undergoing nephrectomy (ECOG-ACRIN EA8143).

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. TPS4596-TPS4596
Author(s):  
Mohamad E. Allaf ◽  
Se Eun Kim ◽  
Viraj A. Master ◽  
David F. McDermott ◽  
Sabina Signoretti ◽  
...  
Keyword(s):  
Immune System ◽  
Clinical Outcomes ◽  
Clinical Stage ◽  
Randomized Study ◽  
Standard Of Care ◽  
Phase Iii ◽  
Perioperative Therapy ◽  
Tumor Biopsy ◽  
Care Surgery ◽  
Metastatic Rcc

TPS4596 Background: There is no standard adjuvant systemic therapy that increases overall survival (OS) over surgery alone for non-metastatic RCC. Anti-PD-1 nivolumab (nivo) improves OS in metastatic RCC and is well tolerated. In mouse models, priming the immune system prior to surgery with anti-PD-1 results in superior OS compared to adjuvant dosing. Remarkable pathologic responses have been seen with neoadjuvant PD-1 in multiple ph 2 studies in bladder, lung and breast cancers. Phase 2 neoadjuvant RCC trials of nivo show preliminary feasibility and safety with no surgical delays. PROSPER RCC seeks to improve clinical outcomes by priming the immune system with neoadjuvant nivo prior to nephrectomy followed by continued immune system engagement with adjuvant blockade in patients (pts) with high risk RCC compared to standard of care surgery alone. Methods: This global, unblinded, phase 3 National Clinical Trials Network study is accruing pts with clinical stage ≥T2 or TanyN+ RCC of any histology planned for radical or partial nephrectomy. Select oligometastatic disease is permitted if the pt can be rendered ‘no evidence of disease’ within 12 weeks of nephrectomy (≤3 metastases; no brain, bone or liver). In the investigational arm, nivo is administered 480mg IV q4 weeks with 1 dose prior to surgery followed by 9 adjuvant doses. The control arm is nephrectomy followed by standard of care surveillance. There is no placebo. Baseline tumor biopsy is required only in the nivo arm but encouraged in both. Randomized pts are stratified by clinical T stage, node positivity, and M stage. 805 pts provide 84.2% power to detect a 14.4% absolute benefit in recurrence-free survival at 5 years assuming the ASSURE historical control of ̃56% to 70% (HR = 0.70). The study is powered to evaluate a significant increase in OS (HR 0.67). Critical perioperative therapy considerations such as safety, feasibility, and quality of life metrics are integrated. PROSPER RCC embeds a wealth of translational studies to examine the contribution of the baseline immune milieu and neoadjuvant priming with anti-PD-1 on clinical outcomes. As of February 10, 2021, 704 patients have been enrolled (N = 805). Clinical trial information: NCT03055013.

PROSPER: Phase III randomized study comparing perioperative nivolumab versus observation in patients with renal cell carcinoma (RCC) undergoing nephrectomy (ECOG-ACRIN EA8143).

2020 ◽  
Vol 38 (6_suppl) ◽  
pp. TPS765-TPS765 ◽  
Author(s):  
Lauren Christine Harshman ◽  
Maneka Puligandla ◽  
Mohamad E. Allaf ◽  
David F. McDermott ◽  
Charles G. Drake ◽  
...  
Keyword(s):  
Immune System ◽  
Clinical Outcomes ◽  
Clinical Stage ◽  
Randomized Study ◽  
Standard Of Care ◽  
Phase Iii ◽  
Perioperative Therapy ◽  
Tumor Biopsy ◽  
Care Surgery ◽  
Metastatic Rcc

TPS765 Background: There is no standard adjuvant systemic therapy that increases overall survival (OS) over surgery alone for non-metastatic RCC. Anti-PD-1 nivolumab (nivo) improves OS in metastatic RCC and is well tolerated. In mouse models, priming the immune system prior to surgery with anti-PD-1 results in superior OS compared to adjuvant dosing. Remarkable pathologic responses have been seen with neoadjuvant PD-1 in multiple ph 2 studies in bladder, lung and breast cancers. Phase 2 neoadjuvant RCC trials of nivo show preliminary feasibility and safety with no surgical delays. PROSPER RCC seeks to improve clinical outcomes by priming the immune system with neoadjuvant nivo prior to nephrectomy followed by continued immune system engagement with adjuvant blockade in patients (pts) with high risk RCC compared to standard of care surgery alone. Methods: This global, unblinded, phase 3 National Clinical Trials Network study is accruing pts with clinical stage ≥T2 or TanyN+ RCC of any histology planned for radical or partial nephrectomy. Select oligometastatic disease is permitted if the pt can be rendered ‘no evidence of disease’ within 12 weeks of nephrectomy (≤3 metastases; no brain, bone or liver). In the investigational arm, nivo is administered 480mg IV q4 weeks with 1 dose prior to surgery followed by 9 adjuvant doses. The control arm is nephrectomy followed by standard of care surveillance. There is no placebo. Baseline tumor biopsy is required only in the nivo arm but encouraged in both. Randomized pts are stratified by clinical T stage, node positivity, and M stage. 805 pts provide 84.2% power to detect a 14.4% absolute benefit in recurrence-free survival at 5 years assuming the ASSURE historical control of ~56% to 70% (HR = 0.70). The study is powered to evaluate a significant increase in OS (HR 0.67). Critical perioperative therapy considerations such as safety, feasibility, and quality of life metrics are integrated. PROSPER RCC embeds a wealth of translational studies to examine the contribution of the baseline immune milieu and neoadjuvant priming with anti-PD-1 on clinical outcomes. As of October 18, 2019, 317 patients have been enrolled. Clinical trial information: NCT03055013.

PROSPER: A phase III randomized study comparing perioperative nivolumab (nivo) versus observation in patients with renal cell carcinoma (RCC) undergoing nephrectomy (ECOG-ACRIN 8143).

2019 ◽  
Vol 37 (15_suppl) ◽  
pp. TPS4597-TPS4597 ◽  
Author(s):  
Lauren Christine Harshman ◽  
Maneka Puligandla ◽  
Naomi B. Haas ◽  
Mohamad Allaf ◽  
Charles G. Drake ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Immune System ◽  
Clinical Outcomes ◽  
Clinical Stage ◽  
Randomized Study ◽  
Phase Iii ◽  
Perioperative Therapy ◽  
The Impact ◽  
Metastatic Rcc

TPS4597 Background: The anti-PD-1 antibody nivo improves overall survival (OS) in metastatic RCC and is well tolerated. There is no standard adjuvant (adjuv) systemic therapy that increases OS over surgery alone for non-metastatic RCC. Priming the immune system prior to surgery with anti-PD-1 has shown an OS benefit compared to a pure adjuv approach in mouse solid tumor models. Multiple ph 2 studies in bladder, lung and breast cancers have shown remarkable pathologic responses with neoadjuvant (neoadj) PD-1 blockade. Two ongoing ph 2 studies of perioperative nivo in M0 RCC patients are showing preliminary feasibility and safety with no surgical delays (NCT02575222; NCT02595918). PROSPER RCC (NCT03055013) aims to improve clinical outcomes by priming the immune system prior to nephrectomy with neoadj nivo and continued engagement with adjuv blockade in patients with high risk RCC compared to surgery alone. Methods: This global, unblinded, phase 3 National Clinical Trials Network study is currently accruing patients with clinical stage ≥T2 or TanyN+ RCC of any histology planned for nephrectomy. Oligometastases are permitted if can be rendered NED. We amended the study to enhance accrual and patient quality of life by changing nivo dosing to 480mg q4 wks and requiring baseline tumor biopsy only in the nivo arm. The investigational arm receives 1 dose of nivo prior to surgery followed by 9 adjuv doses. The control arm undergoes standard nephrectomy followed by observation. Randomized patients are stratified by clinical T stage, node positivity, and M stage. Accrual of 805 patients provides 84.2% power to detect a 14.4% absolute benefit in recurrence-free survival (RFS) at 5 years assuming the ASSURE historical control of ~56% to 70% (HR = 0.70). The study is powered to evaluate a significant increase in OS (HR 0.67). Critical perioperative therapy considerations such as safety, feasibility, and quality of life endpoints have been integrated. PROSPER RCC embeds a wealth of translational work aimed at investigating the impact of the baseline immune milieu, the changes induced by neoadjuvant anti-PD-1 priming, and how both may predict clinical outcomes. Clinical trial information: NCT03055013.

PROSPER: A phase III randomized study comparing perioperative nivolumab (nivo) versus observation in patients with localized renal cell carcinoma (RCC) undergoing nephrectomy (ECOG-ACRIN 8143).

2019 ◽  
Vol 37 (7_suppl) ◽  
pp. TPS684-TPS684 ◽  
Author(s):  
Lauren Christine Harshman ◽  
Maneka Puligandla ◽  
Naomi B. Haas ◽  
Mohamad Allaf ◽  
Charles G. Drake ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Overall Survival ◽  
Immune System ◽  
Clinical Outcomes ◽  
Clinical Stage ◽  
Randomized Study ◽  
Phase Iii ◽  
The Impact ◽  
Metastatic Rcc

TPS684 Background: The anti-PD-1 antibody nivo improves overall survival in metastatic RCC and is well tolerated. There is no standard adjuvant systemic therapy that increases overall survival (OS) over surgery alone for non-metastatic RCC. Priming the immune system prior to surgery with anti-PD-1 has shown an OS benefit compared to a pure adjuvant approach in mouse solid tumor models. The PROSPER RCC trial aims to improve clinical outcomes by priming the immune system prior to nephrectomy with neoadjuvant nivo and continued engagement with adjuvant blockade in patients with high risk M0 RCC compared to surgery alone. Methods: This global, unblinded, phase 3 National Clinical Trials Network study is currently accruing patients with clinical stage ≥T2 or node positive M0 RCC of any histology. Tumor biopsy prior to randomization is mandatory to ensure RCC and permits in depth correlative science. The investigational arm will receive two doses of nivo 240mg prior to surgery followed by adjuvant nivo for 9 months (q2 wks x 3 mo followed by 480mg q4 wks x 6 mo). The control arm will undergo standard nephrectomy followed by observation. Randomized patients are stratified by clinical T stage, node positivity, and histology. To enhance accrual and patient quality of life, key upcoming amendments are being instituted. These include biopsy only in the nivo arm, allowance of oligometastatic disease and bilateral renal masses that can be fully resected/ablated, and change of nivo dosing to q4 wks (1 neoadj; 9 adj). With accrual of 766 patients, there is 84.2% power to detect a 14.4% absolute benefit in recurrence-free survival (RFS) at 5 years assuming the ASSURE historical control of ~56% to 70% (HR = 0.70). The study is also powered to evaluate a significant increase in overall survival (HR 0.67). Safety, feasibility, and quality of life endpoints critical to adjuvant therapy considerations are incorporated. PROSPER RCC embeds a wealth of translational work aimed at investigating the impact of the baseline immune milieu, the changes induced by neoadjuvant anti-PD-1 priming, and how both correlate with clinical outcomes. Clinical trial information: NCT03055013.

A phase III randomized study comparing perioperative nivolumab vs. observation in patients with localized renal cell carcinoma undergoing nephrectomy (PROSPER RCC).

2018 ◽  
Vol 36 (6_suppl) ◽  
pp. TPS710-TPS710
Author(s):  
Lauren Christine Harshman ◽  
Maneka Puligandla ◽  
Naomi B. Haas ◽  
Mohamad Allaf ◽  
Charles G. Drake ◽  
...  
Keyword(s):  
Adjuvant Therapy ◽  
Clinical Stage ◽  
Expression Patterns ◽  
Randomized Study ◽  
Locally Advanced ◽  
Standard Of Care ◽  
Phase Iii ◽  
Current Standard ◽  
Tumor Biopsy ◽  
Absolute Increase

TPS710 Background: The anti-PD-1 antibody nivolumab (nivo) improves overall survival (OS) in metastatic treatment refractory RCC and is generally tolerable. In 2017, there is no standard adjuvant therapy proven to increase OS over surgery alone in non-metastatic (M0) disease. Mouse solid tumor models have revealed an OS benefit with a short course of neoadjuvant PD-1 blockade compared to adjuvant therapy. Two ongoing phase 2 studies of perioperative nivo in RCC patients (pts) are showing preliminary feasibility and safety with no surgical delays/complications. PROSPER RCC will examine if the addition of perioperative nivo to radical or partial nephrectomy can improve clinical outcomes in pts with locally advanced RCC. We are implementing a three-pronged, multidisciplinary approach of presurgical priming with nivo followed by resection and adjuvant PD-1 blockade with the goal of increasing cure and recurrence-free survival (RFS) rates in M0 RCC. Methods: Tumor biopsy prior to randomization is mandatory to ensure RCC diagnosis but will also permit unparalleled correlative science in this global, unblinded, phase 3 National Clinical Trials Network randomized study. 766 pts with clinical stage ≥T2 or any node positive M0 RCC of any histology will be enrolled. The study arm will receive nivo 240mg IV for 2 doses prior to surgery followed by adjuvant dosing for 9 mo (q2 wks x 3 mo followed by q4 wks x 6 mo). The control arm will undergo the current standard of care: surgical resection followed by observation. Pts are stratified by clinical T stage, node positivity, and histology. There is 84.2% power to detect a 14.4% absolute increase in the primary endpoint of RFS from the ASSURE historical control of 55.8% to 70.2% at 5 yrs (HR 0.70). The study is also powered to detect a significant OS benefit (HR 0.67). Safety, feasibility, and quality of life are key secondary endpoints. PROSPER RCC exemplifies team science and incorporates a host of correlative work to examine the significance of the baseline immune milieu and changes induced by neoadjuvant priming and to identify predictive gene expression patterns. New collaborations welcomed. Clinical trial information: NCT03055013.

A phase III randomized study comparing perioperative nivolumab vs. observation in patients with localized renal cell carcinoma undergoing nephrectomy (PROSPER RCC).

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. TPS4596-TPS4596 ◽  
Author(s):  
Lauren Christine Harshman ◽  
Maneka Puligandla ◽  
Naomi B. Haas ◽  
Mohamad Allaf ◽  
Charles G. Drake ◽  
...  
Keyword(s):  
Adjuvant Therapy ◽  
Clinical Stage ◽  
Expression Patterns ◽  
Correct Diagnosis ◽  
Randomized Study ◽  
Locally Advanced ◽  
Standard Of Care ◽  
Phase Iii ◽  
Current Standard ◽  
Absolute Increase

TPS4596 Background: The anti-PD-1 antibody nivolumab (nivo) improves overall survival (OS) in metastatic treatment refractory RCC and is generally tolerable. In 2017, there is no standard adjuvant therapy proven to increase OS over surgery alone in non-metastatic (M0) disease. Mouse solid tumor models have revealed an OS benefit with a short course of neoadjuvant PD-1 blockade compared to adjuvant therapy. Two ongoing phase 2 studies of perioperative nivo in RCC patients (pts) have shown preliminary feasibility and safety with no surgical delays or complications. The PROSPER RCC trial will examine if the addition of perioperative nivo to radical or partial nephrectomy can improve clinical outcomes in pts with locally advanced RCC. With the goal of increasing cure and recurrence-free survival (RFS) rates in M0 RCC, we propose a three-pronged, multidisciplinary approach of presurgical priming with nivo followed by resection and adjuvant PD-1 blockade. Methods: Tumorbiopsy prior to randomization is mandatory to ensure the correct diagnosis and will permit unparalleled correlative science in this global, randomized, unblinded, phase 3 National Clinical Trials Network study. 766 pts with clinical stage ≥T2 or any node positive M0 RCC of any histology will be enrolled. The study arm will receive nivo 240mg IV for 2 doses prior to surgery followed by nivo adjuvantly for 9 months (q2 wks x 3 mo followed by q4 wks x 6 mo). The control arm will undergo the current standard of care: surgical resection followed by observation. Pts are stratified by clinical T stage, node positivity, and histology. There is 84.2% power to detect a 14.4% absolute increase in the primary endpoint of RFS from the ASSURE historical control of 55.8% to 70.2% at 5 yrs (HR 0.70). The study is also powered to detect a significant OS benefit (HR 0.67). Key safety, feasibility, and quality of life endpoints are incorporated. PROSPER RCC exemplifies team science with a host of planned correlative work to investigate the significance of the baseline immune milieu and changes after neoadjuvant priming and to identify predictive gene expression patterns. Additional collaborations are welcomed.

Concurrent or layered treatment with radium-223 (Ra-223) and enzalutamide (Enza) or abiraterone plus prednisone/prednisolone (Abi/pred): A retrospective study of real-world clinical outcomes in patients (pts) with metastatic castration-resistant prostate cancer (mCRPC).

2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 5026-5026
Author(s):  
Neal D. Shore ◽  
A. Oliver Sartor ◽  
Cora N. Sternberg ◽  
Fred Saad ◽  
Bertrand F. Tombal ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Clinical Outcomes ◽  
Real World ◽  
Descriptive Analysis ◽  
Randomized Study ◽  
Phase Iii ◽  
Castration Resistant Prostate Cancer ◽  
Kaplan Meier ◽  
Radium 223 ◽  
Phase Iii Study

5026 Background: In clinical practice, Ra-223 is often combined with Enza or Abi/pred. ERA 223 (NCT02043678) showed increased fracture risk with concurrent Ra-223+Abi/pred. We assessed real-world symptomatic skeletal events (SSEs) and overall survival (OS) of pts with mCRPC who received concurrent or layered Ra-223+Enza or Abi/pred. Methods: Patients with mCRPC treated with Ra-223 in US cancer clinics from 1/01/2013 to 6/30/2017 were identified from a Flatiron prostate cancer registry of electronic health records. Treatment initiation defined subgroups: concurrent (both started within 30 days) or layered (1 started ≥30 days after the other). Baseline (BL) was the first dose of Ra-223. Descriptive analysis was performed for BL characteristics, SSEs, and OS (Kaplan–Meier). Results: Of 625 pts treated with Ra-223, 48% received Ra-223+Enza or Abi/pred. Layered treatment was more common (73%) than concurrent (27%). BL characteristics and clinical outcomes were summarized [Table]. Conclusions: In a real-world setting, Ra-223+Enza or Abi/pred treatment was mainly layered. SSE rates with layered vs concurrent Ra-223+Abi/pred varied between subgroups; results must be treated cautiously given small pt numbers and a non-randomized study. The ongoing PEACE III trial is investigating concurrent Ra-223+Enza; a Phase III study (ESCALATE) exploring layered Ra-223+Enza is planned. [Table: see text]

Phase III randomized study of ipilimumab (IPI) plus dacarbazine (DTIC) versus DTIC alone as first-line treatment in patients with unresectable stage III or IV melanoma.

2011 ◽  
Vol 29 (18_suppl) ◽  
pp. LBA5-LBA5 ◽  
Author(s):  
J. D. Wolchok ◽  
L. Thomas ◽  
I. N. Bondarenko ◽  
S. O'Day ◽  
J. S. Weber ◽  
...  
Keyword(s):  
Metastatic Melanoma ◽  
Randomized Study ◽  
Survival Rates ◽  
Standard Of Care ◽  
Phase Iii ◽  
Rank Test ◽  
Double Blind ◽  
Prior Therapy ◽  
Treatment Naïve ◽  
Ecog Ps

LBA5 Background: IPI monotherapy (3mg/kg) improved overall survival (OS) in a phase III study of previously treated, unresectable or metastatic melanoma. Current study in 1st line metastatic melanoma evaluates combination of DTIC (a global standard of care) plus IPI. Methods: In this double-blind phase 3 study, patients (pts) with metastatic melanoma, ECOG PS 0/1, and no prior therapy for advanced disease, were randomized 1:1 to IPI (10 mg/kg) + DTIC (850 mg/m2) or placebo + DTIC (850 mg/m2) at Wks 1, 4, 7, 10 followed by DTIC q3 wks through Wk 22 (induction). Eligible pts received IPI or placebo q12 wks as maintenance. Primary endpoint was OS; 2-sided log-rank test was performed, stratified by baseline M stage and ECOG PS. Results: Of 502 pts, 56% had M1c disease, 40% elevated LDH, and 26% adjuvant therapy. 37% in IPI + DTIC and 65% in DTIC alone arms received 4 induction doses. A significant improvement in OS (HR=0.72; P=0.0009) and higher estimated 1, 2 and 3 yr survival rates were seen with IPI + DTIC (Table). 56% in IPI +DTIC (n=247) and 27% in DTIC alone (n=251) arms had grade 3/4 adverse events (AEs, regardless of attribution), including: elevated ALT (22% vs 1%); diarrhea (4% vs 0%); rash (1% vs 0%). No intestinal perforations or hypophysitis were noted. There were no drug-related deaths in IPI + DTIC and one in DTIC alone arm [gastrointestinal (GI) hemorrhage]. Conclusions: IPI (10mg/kg) + DTIC significantly improved OS in 1st line metastatic melanoma vs DTIC alone; durable survival and objective responses were noted in some pts after follow-up for up to 4yrs. Type of AEs was consistent with prior IPI studies; however, frequencies of some AEs differed with a higher transaminitis and lower diarrhea/colitis/ GI perforation rates than expected. No drug-related deaths were noted in IPI arm. OS benefit of IPI is confirmed in treatment-naive metastatic melanoma. [Table: see text]

A phase 3, open-label, randomized study of nivolumab plus ipilimumab or standard of care (SOC) versus SOC alone in patients (pts) with previously untreated unresectable or metastatic urothelial carcinoma (mUC; CheckMate 901).

2018 ◽  
Vol 36 (6_suppl) ◽  
pp. TPS539-TPS539 ◽  
Author(s):  
Matt D. Galsky ◽  
Thomas Powles ◽  
Shengting Li ◽  
Delphine Hennicken ◽  
Guru Sonpavde
Keyword(s):  
Randomized Study ◽  
Progression Free Survival ◽  
Standard Of Care ◽  
Clinical Activity ◽  
Open Label ◽  
Phase 3 ◽  
Tumor Biopsy ◽  
Primary Endpoints ◽  
Platinum Based Chemotherapy ◽  
Independent Review

TPS539 Background: Cisplatin-containing regimens have been SOC for mUC for nearly 40 years, but durable responses are rare with such treatments. Furthermore, a large proportion of pts with unresectable/mUC are ineligible for cisplatin therapy. Treatment approaches conferring longer-term disease control and extending to broader mUC pt populations are urgently needed. Recently, the programmed death-1 (PD-1) inhibitor, nivolumab, induced durable responses in pts with unresectable/mUC progressing despite platinum-based chemotherapy, and nivolumab combined with ipilimumab (a CTLA-4 inhibitor) demonstrated acceptable safety and clinical activity. This phase 3 study will evaluate nivolumab + ipilimumab and nivolumab + SOC vs SOC in previously untreated pts with unresectable/mUC (NCT03036098). Methods: Key inclusion criteria: cisplatin-eligible and -ineligible pts with measurable disease, no prior systemic chemotherapy for unresectable/mUC, and evaluable tumor biopsy. Key exclusion criteria: active brain metastases, autoimmune disease, and prior treatment with drugs specifically targeting T-cell co-stimulation or checkpoint pathways. Cisplatin-eligible and -ineligible pts will be randomized 1:1 to arm A (nivolumab 1 mg/kg + ipilimumab 3 mg/kg every 3 weeks up to 4 doses, followed by nivolumab 480 mg every 4 weeks until disease progression or unacceptable toxicity) or arm B (gemcitabine-cisplatin or gemcitabine-carboplatin for up to 6 cycles). Additional cisplatin-eligible pts will be randomized to arm C (nivolumab 360 mg + gemcitabine-cisplatin every 3 weeks for up to 6 cycles, followed by nivolumab 480 mg) or arm D (gemcitabine-cisplatin for up to 6 cycles). Stratification factors: PD-1 ligand 1 status, cisplatin eligibility, and liver metastasis. Co-primary endpoints: overall and progression-free survival (OS and PFS) by blinded independent review committee (BIRC) in cisplatin-ineligible pts receiving nivolumab + ipilimumab vs SOC, and PFS by BIRC in cisplatin-eligible pts receiving nivolumab + SOC vs SOC. Enrollment began March 2017 with a target of 897 pts. Clinical trial information: NCT03036098.

A phase III randomized study of neoadjuvant chemotherapy (NAC) alone or in combination with nivolumab (NIVO) ± linrodostat mesylate, followed by adjuvant postsurgical NIVO ± linrodostat, in cisplatin-eligible muscle invasive bladder cancer (MIBC).

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. TPS5091-TPS5091
Author(s):  
Guru Sonpavde ◽  
Andrea Necchi ◽  
Shilpa Gupta ◽  
Gary D. Steinberg ◽  
Juergen Gschwend ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Neoadjuvant Chemotherapy ◽  
Clinical Stage ◽  
Randomized Study ◽  
Pathologic Complete Response ◽  
Phase Iii ◽  
Clinical Activity ◽  
Bladder Tissue ◽  
Normal Bladder ◽  
Muscle Invasive

TPS5091 Background: Immuno-oncology (IO) therapies have revolutionized the treatment (tx) of pts with advanced bladder cancer (advBC). For pts with cisplatin-eligible, muscle invasive BC (MIBC), the recommended tx is cisplatin-based neoadjuvant chemotherapy (NAC) prior to radical cystectomy (RC). However, since only ≈ 30% of pts achieve a pathologic complete response (pCR) translating to improved long-term outcomes with approved regimens, new therapies are needed. PD-L1 expression is associated with aggressive BC and has been shown to increase in BC after NAC, supporting the therapeutic pursuit of the PD-1/PD-L1 axis. Additionally, expression of indoleamine 2,3-dioxygenase (IDO) is higher in BC than in normal bladder tissue and is associated with advanced disease and poor clinical outcome. Linrodostat mesylate, a selective, potent, once-daily oral IDO1 inhibitor that works to reduce kynurenine production, has demonstrated clinical activity in combination with NIVO (anti–PD-1) in pts with IO tx–naive advBC who had ≥ 1 prior line of therapy (ORR, 37%). Taken together, these data provide a rationale for investigating NAC + NIVO + linrodostat in MIBC. Here we describe a randomized, partially blinded, phase 3 study evaluating the efficacy and safety of NAC ± NIVO ± linrodostat followed by RC and continued IO tx in pts with MIBC (NCT03661320). Methods: Pts aged ≥ 18 years with previously untreated MIBC (clinical stage T2-T4a, N0, M0), creatinine clearance ≥ 50 mL/min, and predominant UC histology who are eligible for cisplatin-based NAC and RC will be enrolled. Pts with evidence of positive lymph node; metastatic BC; or prior systemic therapy, radiotherapy, or surgery for BC other than TURBT are not eligible. Pts will be randomized to receive NAC (gemcitabine/cisplatin; arm A), NAC + NIVO + oral placebo (arm B), or NAC + NIVO + linrodostat (arm C) followed by RC (all arms); arms B and C will receive continued IO tx. Primary endpoints include pCR after neoadjuvant tx and event-free survival (arms C vs A; arms B vs A). Secondary endpoints are overall survival and safety. This global study in 28 countries began accrual in Nov 2018 and has a target enrollment of 1200 pts. Clinical trial information: NCT03661320 .

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