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Talazoparib and Avelumab in Participants With Metastatic Renal Cell Carcinoma

Talazoparib and Avelumab in Genomically Defined Metastatic Renal Cell Carcinoma

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04068831
Enrollment
18
Registered
2019-08-28
Start date
2019-08-22
Completion date
2023-12-06
Last updated
2024-12-27

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

Conditions

Fumarate Hydratase Deficient Renal Cell Carcinoma, Metastatic Renal Cell Carcinoma, Succinate Dehydrogenase Deficient Renal Cell Carcinoma

Keywords

Talazoparib, Avelumab, 19-195

Brief summary

The purpose of this study is to see whether the combination of avelumab and talazoparib can be an effective treatment for metastatic renal cell carcinoma.

Interventions

DRUGTalazoparib

1 mg talazoparib daily

DRUGAvelumab

800 mg avelumab every 2 weeks

Sponsors

Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

This is a phase II, open-label, single-institution trial.This is a phase II, open-label, single institution clinical trial of combination talazoparib and avelumab in patients with metastatic RCC. This clinical trial will enroll two separate cohorts in parallel.

Eligibility

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

Inclusion criteria

* Biopsy proven, histological confirmed renal cell carcinoma (RCC) or renal medullary carcinoma (RMC).. Patients with surgery and biopsy at outside institutions will be eligible for this protocol once archival material is reviewed and the above diagnosis confirmed by genitourinary pathology review at Memorial Sloan Kettering Cancer Center (MSKCC). Cohort 1: (Closed to Accrual) * Presence of VHLalteration by next-generation sequencing (NGS) with a stateapproved assay * Patients must have radiographic evidence of disease progression after treatment with at least one prior PD-1 or PD-L1 agent, and one prior VEGF inhibitor * Maximum 3 prior lines of therapy Cohort 2: * For FH/SDH patients FH- or SDH- expression-loss by immunohistochemistry (IHC) or alteration (somatic or germline) in FH or SDH per NGS with a state-approved assay * For Renal Medullary Carcinoma (RMC) patients: histologic confirmation of RMC (no IHC/NGS criteria required) * At least one prior line of therapy: * For FH/SDH patients Patients must have radiographic evidence of disease progression after treatment with at least one prior line of therapy (one prior PD-1/PD-L1 and/or VEGF inhibitor). * For Renal Medullary Carcinoma (RMC) patients prior radiographic evidence of disease progression on/after at least one line of chemotherapy (e.g. carboplatin / paclitaxel, carboplatin / paclitaxel / bevacizumab, carboplatin / gemcitabine, and gemcitabine / doxorubicin). * No maximum lines of therapy Both Cohorts 1 & 2 * Adequate Hematologic Function * Absolute Neutrophil Count ≥ 1.5 x 10\^9 / L * Platelet Count ≥ 100 x 10\^9 / L * Hemoglobin ≥ 9 g/dL * No transfusion of packed red blood cells or platelets within 21 days of Cycle 1 Day 1 * Adequate Renal Function ≥ 30 ml/min according to the Cockcroft-Gault Equation * Patients with moderate renal impairment (creatinine clearance 30-59 by Cockcroft-Gault EquationI) will start with a reduced dose of talazoparib. * Adequate Hepatic Function including: * Total bilirubin ≤ 1.5 x upper limit of normal (ULN) * AST ≤ 3 x upper limit of normal (ULN) without liver metastasis * ALT ≤ 3 x upper limit of normal (ULN) without liver metastasis * AST or ALT ≤ 5 x upper limit of normal (ULN) for patients with liver metastasis * Patients with known Gilbert's syndrome may be included if total bilirubin ≤ x 3 ULN * Eastern Cooperative Group (ECOG) Performance Status 0-2. * Patients must have measurable disease by RECIST v1.1. At least one measurable lesion should not have been previously irradiated. * Women of childbearing potential must have negative serum pregnancy testing at screening. All women will be considered childbearing potential unless meeting criteria including: * Achieved post-menopausal status as defined by cessation of regular menses for at least 12 consecutive months with no alternative pathological or physiological cause and have follicular stimulation hormone showing postmenopausal state. Women who have been amenorrhoeic for ≥12 months are still considered to be of childbearing potential if the amenorrhea is possibly due to prior chemotherapy, anorexia, low body weight, ovarian suppression, anti-estrogen therapy or other medically inducible reasons. * Documented hysterectomy or bilateral oophorectomy surgery * Medically confirmed ovarian failure * Sexually active participants and their partners must agree to use medically accepted methods of contraception (i.e. barrier methods including condoms, female condom, or diaphragm with spermicidal gel) during the study and for 7 months after the last dose of the study treatment for females, and 4 months for males. * Recovery of baseline CTCAE v5.0 grade ≤1 toxicities related to prior study treatments unless adverse events are clinically non-significant and/or stable on supportive therapy if needed. * Patients must be willing and able to comply with trial protocol. This includes adhering to the treatment plan, scheduled visits, laboratory and other study procedures.

Exclusion criteria

* Patients \< 18 years old * Patients who are pregnant or breast-feeding. Fertile patients who are unwilling or unable to use two methods of contraception (at least one of which considered highly effective) for duration of study and after 7 months after last dose of study treatment for female, and 4 months for males. * Patients who had prior immune checkpoint blockade therapy (either anti-PD-1, anti- PD-L1 and/or anti-CTLA-4) discontinued due to development of an immune related adverse event. * Prior diagnosis of myelodysplastic syndrome (MDS) or diagnosis of other malignancy that requires anti-cancer directed therapy within the last 24 months. Exclusions include those cancers that are considered cured by local therapy (i.e.Basal cell carcinoma, squamous cell carcinoma, ducal carcinoma in situ of breast, bladder of cervix) or other cancers that have low malignant potential and do not require systemic therapy (i.e. Gleason-grade \<6 prostate adenocarcinoma, borderline ovarian malignancy / low malignant potential). * Prior treatment with talazoparib or other agents that target PARP * Treatment with anti-cancer therapies within 21 days or five half-lives, whichever shorter, of start date, including monoclonal antibody, cytotoxic therapy, or another investigational agent. There is no specific time window between last PD-1/PD-L1 therapy and start date of new therapy on protocol. * Significant vascular disease (i.e. aortic aneurysm requiring surgical repair, recent arterial thrombosis) within 6 months prior to first dose of therapy. * Evidence of bleeding diathesis or significant unexplained coagulopathy (i.e. absent of anticoagulation) * Clinical signs or symptoms of gastrointestinal obstruction requirement parenteral hydration, parenteral nutrition, or feeding tube. * Uncontrolled effusion management (pleural effusion, pericardial effusion, or ascites) which requires recurrent drainage procedures. * Patients treated with systemic immunosuppressants; except for 1. chronic physiologic replacement of ≤ 10mg prednisone (or equivalent) for treatment of adrenal insufficiency; Steroids required for pre-medication reactions 2. Local steroid use is permitted (e.g. intranasal, topical, inhaled, or local steroid injection, i.e. intra-articular) * Patients with autoimmune disease that may worsen during immune checkpoint blockade therapy are excluded. Patients with diabetes type I, vitiligo, psoriasis, hypo- or hyperthyroid disease not requirement immunosuppressive treatment as above are eligible. * Prior organ transplantation including allogeneic stem cell transplant. * No active infection requiring parenteral antibiotic therapy. * Prior diagnosis of HIV/AIDS * History of either positive HCV RNA viral load or anti-HCV antibody screening detectable; HBV infection with HBV surface antigen detection and/or positive HBV DNA viral load. * Known hypersensitivity to talazoparib or avelumab, or any component in formulations. Patients with known hypersensitivity to monoclonal antibodies (Grade ≥3 by CTCAE v5.0) * Live vaccination within 4 weeks of first dose of therapy. All vaccines except inactivated are prohibited while on study. * Severe acute or chronic medical conditions which may significantly increase the risk of study participants, per treating investigator's discretion * Radiation therapy to any site (including bone) \<2 weeks prior to the first dose of therapy. Patients with clinically relevant ongoing complications from prior radiation therapy, per investigators' assessment, are not eligible. * Symptomatic brain metastasis or leptomeningeal disease requiring steroid use. Patients are eligible if they neurologically stable for 4 weeks, and have completed radiation therapy or surgery, and recovered from side effects. Patients must have discontinued steroid therapy for at least 2 weeks prior to first dose of study treatment. * Current or anticipated use of potent P-gp inhibitors within 7 days prior to randomization or anticipated use during the study. Please see Appendix 5 for a list of potent P-gp inhibitors. * Inability to swallow capsules, known intolerance to talazoparib or its excipients, known malabsorption syndrome, or other conditions which impair intestinal absorption. * Investigator site staff members directly involved in study conduct, including but not limited to their family members, or patients who are Pfizer members, including their family members, who are directly involved in study conduct.

Design outcomes

Primary

MeasureTime frameDescription
the Objective Response Rate (ORR)4 monthsconfirmed complete response (iCR) or partial response (iPR) assessed by iRECIST.

Secondary

MeasureTime frameDescription
Progression-free Survival (PFS)2 yearsby RECIST v1.1

Countries

United States

Participant flow

Participants by arm

ArmCount
Talazoparib and Avelumab (VHL-deficiency) (Closed to Accrual)
All patients will receive combination treatment at the previously established recommended phase II dose, 800 mg avelumab every 2 weeks with 1 mg talazoparib daily, in 28-day cycles. Talazoparib: 1 mg talazoparib daily Avelumab: 800 mg avelumab every 2 weeks
10
Talazoparib and Avelumab (FH- or SDH-deficiency)
All patients will receive combination treatment at the previously established recommended phase II dose, 800 mg avelumab every 2 weeks with 1 mg talazoparib daily, in 28-day cycles. Talazoparib: 1 mg talazoparib daily Avelumab: 800 mg avelumab every 2 weeks
8
Total18

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDisease Progression108

Baseline characteristics

CharacteristicTalazoparib and Avelumab (VHL-deficiency) (Closed to Accrual)TotalTalazoparib and Avelumab (FH- or SDH-deficiency)
Age, Continuous62 years58 years40 years
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
10 Participants18 Participants8 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
1 Participants2 Participants1 Participants
Race (NIH/OMB)
Black or African American
0 Participants4 Participants4 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
9 Participants12 Participants3 Participants
Region of Enrollment
United States
10 Participants18 Participants8 Participants
Sex: Female, Male
Female
8 Participants14 Participants6 Participants
Sex: Female, Male
Male
2 Participants4 Participants2 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
9 / 107 / 8
other
Total, other adverse events
9 / 108 / 8
serious
Total, serious adverse events
3 / 105 / 8

Outcome results

Primary

the Objective Response Rate (ORR)

confirmed complete response (iCR) or partial response (iPR) assessed by iRECIST.

Time frame: 4 months

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Talazoparib and Avelumab (VHL-deficiency) (Closed to Accrual)the Objective Response Rate (ORR)Pts with ORR0 Participants
Talazoparib and Avelumab (VHL-deficiency) (Closed to Accrual)the Objective Response Rate (ORR)Pts without ORR10 Participants
Talazoparib and Avelumab (FH- or SDH-deficiency)the Objective Response Rate (ORR)Pts with ORR0 Participants
Talazoparib and Avelumab (FH- or SDH-deficiency)the Objective Response Rate (ORR)Pts without ORR8 Participants
Secondary

Progression-free Survival (PFS)

by RECIST v1.1

Time frame: 2 years

ArmMeasureValue (MEDIAN)
Talazoparib and Avelumab (VHL-deficiency) (Closed to Accrual)Progression-free Survival (PFS)3.5 months
Talazoparib and Avelumab (FH- or SDH-deficiency)Progression-free Survival (PFS)1.2 months

Source: ClinicalTrials.gov · Data processed: Feb 13, 2026