A Study of XmAb®20717 in Subjects With Selected Advanced Solid Tumors

NCT ID: NCT03517488

Last Updated: 2022-12-01

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

150 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-07-10

Study Completion Date

2022-09-06

Brief Summary

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This is a Phase 1, multiple dose, ascending dose escalation study to define a MTD/RD and regimen of XmAb20717, to describe safety and tolerability, to assess PK and immunogenicity, and to preliminarily assess anti-tumor activity of XmAb20717 in subjects with selected advanced solid tumors.

Detailed Description

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Conditions

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Melanoma Breast Carcinoma Hepatocellular Carcinoma Urothelial Carcinoma Squamous Cell Carcinoma of the Head and Neck Renal Cell Carcinoma Colorectal Carcinoma Non-small Cell Lung Carcinoma Gastric or Gastroesophageal Junction Adenocarcinoma Endometrial Carcinoma Mesothelioma Neuroendocrine Carcinoma Cervical Cancer Small Cell Lung Carcinoma Squamous Cell Carcinoma of the Anus Castration-Resistant Prostate Carcinoma Nasopharyngeal Carcinoma Cholangiocarcinoma Basal Cell Carcinoma Ovarian Carcinoma Fallopian Tube Carcinoma Thymoma Thymic Carcinoma Squamous Cell Carcinoma of the Penis Vulvar Carcinoma Solid Tumors With Published Evidence of Anti-tumor Activity With Anti-PD1/PDL1 and/or Anti-CTLA4-directed Therapy Malignant Adnexal Neoplasms Non-squamous Cell Salivary Gland Carcinoma

Study Design

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Allocation Method

NA

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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XmAb20717

XmAb20717 administered by intravenous dosing on Days 1 and 15 of each 28-day cycle for a total of two cycles

Group Type EXPERIMENTAL

XmAb20717

Intervention Type BIOLOGICAL

Monoclonal bispecific antibody

Interventions

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XmAb20717

Monoclonal bispecific antibody

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Histologically or cytologically confirmed diagnosis of one of the following advanced solid tumors:

PART A (Dose Escalation Cohorts)

1. Melanoma;
2. Breast carcinoma that is estrogen receptor, progesterone receptor, and Her2 negative (triple-negative breast cancer; TNBC);
3. Hepatocellular carcinoma;
4. Urothelial carcinoma;
5. Squamous cell carcinoma of the head and neck;
6. Renal cell carcinoma (clear cell predominant type);
7. Microsatellite instability-high or mismatch repair deficient colorectal carcinoma or endometrial carcinoma;
8. Non-small cell lung carcinoma;
9. Gastric or gastroesophageal junction adenocarcinoma
10. Mesothelioma;
11. High-grade neuroendocrine carcinoma, including small cell carcinoma of the lung
12. Cervical cancer;
13. Squamous cell carcinoma of the anus

PART B (Dose Expansion Cohorts):

1. Melanoma
2. Renal cell carcinoma (clear cell predominant type)
3. Non-small cell lung carcinoma
4. Castrate-resistant adenocarcinoma of the prostate, defined as progressive disease after surgical castration, or progression in the setting of medical androgen ablation with a castrate level of testosterone (\< 50 ng/dL)
5. Nasopharyngeal carcinoma
6. Cholangiocarcinoma
7. Basal cell carcinoma
8. Squamous cell carcinoma of the anus
9. Mesothelioma
10. Ovarian or fallopian tube carcinoma
11. Malignant adnexal neoplasms (including, but not limited to, sebaceous carcinoma, trichilemmal carcinoma, pilomatrix carcinoma, eccrine carcinoma, hidradenocarcinoma, adnexal carcinoma with divergent differentiation, papillary digital eccrine adenocarcinoma, microcystic adnexal carcinoma, and clear cell eccrine carcinoma)
12. Thymoma
13. Thymic carcinoma
14. Squamous cell carcinoma of the penis
15. Neuroendocrine carcinoma
16. Vulvar cancer
17. Non-squamous cell salivary gland carcinoma (except adenoid cystic carcinoma)
18. Subjects with other solid tumors for which there is published evidence of anti-tumor activity with anti-PD1/PDL1 and/or anti-CTLA4-directed therapy but for which there is no FDA-approved anti-PD1/PDL1 or CTLA4-directed checkpoint inhibitor treatment may be eligible for Part B after approval by the Medical Monitor.

* All subjects' cancer must have progressed after treatment with all standard therapies or have no appropriate available therapies.
* Subjects, except those with adenocarcinoma of the prostate, must have measurable disease by RECIST 1.1.
* Have available adequate archival formalin-fixed paraffin-embedded block(s)/slides containing tumor or adequate pre-dose fresh tumor biopsy tissue
* ECOG performance status of 0 - 1
* Subjects with adenocarcinoma of the prostate must have evaluable disease (measurable or nonmeasurable lesions) by PCWG3.

Exclusion Criteria

* Subjects currently receiving other anticancer therapies, with the exception of subjects with adenocarcinoma of the prostate, who may continue luteinizing hormone-releasing hormone (LHRH) analogue therapy.
* Treatment with any CTLA4 antibody within 6 weeks of the start of study drug.
* Treatment with nivolumab or any PDL1 or PDL2-directed antibody within 4 weeks of the start of study drug.
* Treatment with pembrolizumab within 4 - 12 weeks of the start of study drug (cohort dependent).
* Treatment with any other anticancer therapy within 2 weeks of the start of study drug (i.e., other immunotherapy, chemotherapy, radiation therapy, etc.). Subjects with prostate cancer may continue LHRH analogue therapy.
* A life-threatening (Grade 4) immune-mediated AE related to prior immunotherapy.
* Failure to recover from any immune-related toxicity from prior cancer therapy to ≤ Grade 1, except if previous immune-related endocrinopathy is medically managed with hormone replacement therapy only.
* Failure to recover from any other toxicity (other than immune-related toxicity) related to previous anticancer treatment to ≤ Grade 2.
* Have known active CNS metastases and/or carcinomatous meningitis. Participants with previously treated brain metastases may participate provided they are radiologically stable, ie, are without evidence of progression for at least 4 weeks by repeat imaging, are clinically stable, and without requirement of steroid treatment for at least 14 days prior to first dose of study treatment.
* Active known or suspected autoimmune disease (except that subjects are permitted to enroll if they have vitiligo; type 1 diabetes mellitus or residual hypothyroidism due to an autoimmune condition that is treatable with hormone replacement therapy only; psoriasis, atopic dermatitis, or another autoimmune skin condition that is managed without systemic therapy; or arthritis that is managed without systemic therapy beyond oral acetaminophen and non-steroidal anti-inflammatory drugs).
* Has any condition requiring systemic treatment with corticosteroids, prednisone equivalents, or other immunosuppressive medications within 14 days prior to first dose of study drug (except that inhaled or topical corticosteroids or brief courses of corticosteroids given for prophylaxis of contrast dye allergic response are permitted).
* Receipt of an organ allograft.
* Prior treatment with any checkpoint inhibitor therapy regimen that targets both PD1/L1 and CTLA-4.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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ICON plc

INDUSTRY

Sponsor Role collaborator

Xencor, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Zequn Tang, MD

Role: STUDY_DIRECTOR

Xencor, Inc.

Locations

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Cedars-Sinai Medical Center, Samuel Oschin Comprehensive Cancer Institute

Los Angeles, California, United States

Site Status

UCLA Hematology-Oncology Clinic (Westwood)

Los Angeles, California, United States

Site Status

University of California San Diego Moores Cancer Center

San Diego, California, United States

Site Status

University of California San Francisco Medical Center

San Francisco, California, United States

Site Status

Emory University

Atlanta, Georgia, United States

Site Status

University of Chicago Medicine

Chicago, Illinois, United States

Site Status

The University of Kansas Clinical Research Center

Fairway, Kansas, United States

Site Status

Karmanos Cancer Institute

Detroit, Michigan, United States

Site Status

Laura and Isaac Perlmutter Cancer Center at NYU Langone

New York, New York, United States

Site Status

Columbia University Medical Center - Herbert Irving Pavilion

New York, New York, United States

Site Status

Providence Portland Medical Center

Portland, Oregon, United States

Site Status

Hospital of the University of Pennsylvania

Philadelphia, Pennsylvania, United States

Site Status

UPMC Hillman Cancer Center

Pittsburgh, Pennsylvania, United States

Site Status

The University of Texas MD Anderson Cancer Center

Houston, Texas, United States

Site Status

University of Utah, Huntsman Cancer Institute

Salt Lake City, Utah, United States

Site Status

Emily Couric Clinical Cancer Center

Charlottesville, Virginia, United States

Site Status

Seattle Cancer Care Alliance

Seattle, Washington, United States

Site Status

Countries

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United States

Other Identifiers

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DUET-2

Identifier Type: OTHER

Identifier Source: secondary_id

XmAb20717-01

Identifier Type: -

Identifier Source: org_study_id

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