NCT06416436

Brief Summary

The purpose of this study is to determine whether cytoreduction of bulky metastatic disease using ultra high dose SBRT in combination with immunotherapy is tolerable and feasible In patients who have exhausted SoC treatment options.

Trial Health

30
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Timeline
Completed

Started Jul 2024

Geographic Reach
1 country

1 active site

Status
withdrawn

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 3, 2024

Completed
13 days until next milestone

First Posted

Study publicly available on registry

May 16, 2024

Completed
2 months until next milestone

Study Start

First participant enrolled

July 15, 2024

Completed
Same day until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 15, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 15, 2024

Completed
Last Updated

June 29, 2025

Status Verified

June 1, 2025

Enrollment Period

Same day

First QC Date

May 3, 2024

Last Update Submit

June 25, 2025

Conditions

Keywords

Stereotactic Ablative RadiotherapySBRTAtezolizumabTecentriqMetastaticPhase I

Outcome Measures

Primary Outcomes (1)

  • Maximum tolerated dose of ultra-high dose Stereotactic Ablative Radiotherapy (SBRT) for 3 different body sites

    Maximum tolerated dose of ultra-high dose SBRT for 3 different body sites (i.e., peripheral lung, mediastinum-central lung, and abdomen-pelvis)

    1 Month

Secondary Outcomes (4)

  • Evaluate the number of participants receiving ultra-high dose ablative radiosurgery with immunotherapy who develop treatment-related adverse events as assessed by CTCAE v4.0

    Enrollment to 1 month after end of SBRT treatment (approximately 2 months)

  • Overall tumor response rate to ultra-high dose SBRT for 3 different body sites

    Pre-treatment to 3 and 6 months after SBRT (approximately 7 months)

  • Progression-Free Survival of participants receiving ultra-high dose Stereotactic Ablative Radiotherapy (SBRT) with concurrent and adjuvant atezolizumab

    Up to 2 years

  • Overall Survival of participants receiving ultra-high dose Stereotactic Ablative Radiotherapy (SBRT) with concurrent and adjuvant atezolizumab

    Up to 2 years

Study Arms (1)

SBRT with concurrent and adjuvant atezolizumab immunotherapy

EXPERIMENTAL
Drug: AtezolizumabRadiation: Stereotactic Ablative Radiotherapy (SBRT)

Interventions

Atezolizumab will be administered at a fixed dose of 1680 mg IV route every 4 weeks (1680 mg on Day 1 of each 28-day cycle), which is an approved dosage for atezolizumab, as outlined in the prescribing information.

SBRT with concurrent and adjuvant atezolizumab immunotherapy

Ultra-High Doses of Ablative Radiosurgery SBRT is delivered to metastases over 3-5 fractions within 1-2 weeks

SBRT with concurrent and adjuvant atezolizumab immunotherapy

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Ability of participant to understand this study, and participant willingness to sign a written informed consent
  • Males and females age ≥ 18 years
  • Measurable disease by RECIST 1.1 Participants must have at least two radiographically identifiable lesions measurable by RECIST v1.1 criteria and one of those lesions must be ≥65 cc. NOTE: 'cc' equals (width x length x height)/2 to provide rough approximation. For example, a 5.1 x 5.1 x 5.1 cm tumor would be 66.3 cc and appropriate for trial enrollment
  • Participants must have washout period of 5 elimination half-lives or 28 days (whichever is longer) from time of last systemic therapy to start of study treatment
  • Women of childbearing potential must have a negative serum pregnancy test at time of enrollment (at screening and up to 48 hours prior to start of radio- or immuno- therapy)
  • Participants with biopsy and radiographically confirmed metastatic cancer (i.e., Lung, head and neck, ovarian, colorectal, sarcoma)
  • At least 1st line (1L) systemic therapy or immunotherapy must have failed for participants and standard of care therapy options must also be exhausted. Standard of care options that have been discontinued for reasons other than disease progression are eligible. NOTE: Participants who are off systemic therapy who are being monitored with surveillance imaging, who then develop disease progression and are without standard of care therapy options are eligible for enrollment.
  • At least one lesion (and up to a maximum of four lesions) must be ≥65 cc (calculated using tumor length x width x height to closest approximation)
  • Prior RT is permitted if the lesion to be treated and surrounding region (no appreciable dosimetric overlap, assessed on case-by-case basis as needed) with ultra-high dose SBRT was not previously treated
  • Participants with CNS metastatic disease will be allowed on protocol if all lesions are managed prior to starting extra-CNS ablative therapy
  • Availability of a representative (FFPE) tumor specimen from metastatic diagnosis of cancer done prior to any study intervention for exploratory study-related biomarker research
  • Adequate organ function, defined as the following laboratory test results, obtained within 14 days prior to initiation of study treatment:
  • Leukocytes ≥ 3K/µL
  • Lymphocyte count ≥ 0.5 x 10\^9/L (500/µL)
  • Absolute Neutrophil Count ≥1.5K/µL without granulocyte colony-stimulating factor support. NOTE: Participants with established diagnosis of benign neutropenia are eligible to participate with ANC between 1000-1500 if in the opinion of treating physician the trial treatment does not pose excessive risk of infection to the participant
  • +15 more criteria

You may not qualify if:

  • Simultaneously enrolled in any therapeutic clinical trial
  • Current or anticipating use of other anti-neoplastic or investigational agents while participating in this study
  • Diagnosed with a psychiatric illness or is in a social situation that would limit compliance with study requirements
  • Is pregnant or breastfeeding
  • Female of childbearing potential planning to become pregnant while receiving study treatment or for less than 180 DAYS/6 MONTHS after the last dose of study treatment. Women of childbearing potential must have a negative serum pregnancy test result at time of enrollment (at screening and up to 48 hours prior to start of radio- or immuno- therapy).
  • Male of childbearing potential planning to father a child or donate sperm while receiving study treatment or for less than 180 DAYS / 6 MONTHS after the last dose of study treatment
  • Active Grade 3 (per the NCI CTCAE, Version 5.0) or higher viral, bacterial, or fungal infection within 2 weeks prior to the first dose of study treatment
  • COVID-19: Participants with active COVID-19 symptoms and/or hospitalized for severe or critical COVID-19 symptoms
  • Participants with uncontrolled concurrent illness or infection (i.e., active pneumonia or infection)
  • Participants with only bone metastatic disease
  • Immunosuppressive disorders (i.e., solid organ transplant recipient, allogeneic stem cell transplant) (please refer Appendix D for full list)
  • Participants who are enrolled in hospice or felt to have less than 6 months life expectation
  • Uncontrolled or untreated CNS metastases
  • Symptomatic, untreated, or actively progressing central nervous system (CNS) metastases
  • Asymptomatic participants with treated CNS lesions are eligible, provided that all of the following criteria are met:
  • +37 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The University of Kansas Medical Center

Kansas City, Kansas, 66160, United States

Location

Related Publications (92)

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Related Links

MeSH Terms

Conditions

Neoplasm Metastasis

Interventions

atezolizumab

Condition Hierarchy (Ancestors)

Neoplastic ProcessesNeoplasmsPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Gregory Gan, MD

    University of Kansas Medical Center

    PRINCIPAL INVESTIGATOR
0

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SEQUENTIAL
Model Details: Traditional 3+3 model
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 3, 2024

First Posted

May 16, 2024

Study Start

July 15, 2024

Primary Completion

July 15, 2024

Study Completion

July 15, 2024

Last Updated

June 29, 2025

Record last verified: 2025-06

Data Sharing

IPD Sharing
Will not share

Locations