Proton Pencil Beam Scanning GRID for Treatment of Bulky Tumors
Public ClinicalTrials.gov record NCT05121545. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Phase 1 Study of Proton Pencil Beam Scanning GRID for Treatment of Bulky Tumors (ProGRID)
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This is a single arm, phase I study, evaluating the feasibility, toxicity, and degree of tumor response after novel proton pencil beam scanning (PBS GRID) treatment in patients with bulky tumors that are difficult to manage.
Study identification
- NCT ID
- NCT05121545
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 11 participants
Conditions and interventions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Apr 6, 2022 (Actual)
- Primary completion
- Sep 24, 2024 (Actual)
- Completion
- Dec 2026 (Estimated)
- Last update posted
- Jan 29, 2026
2022 – 2026
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Sibley Memorial Hospital | Washington D.C. | District of Columbia | 20016 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT05121545, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jan 29, 2026 · Synced Oct 19, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT05121545 live on ClinicalTrials.gov.