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Pre-operative Hypofractionated Proton Therapy

PROspective Phase II Trial of Pre-operative Hypofractionated protoN Therapy for Extremity and Truncal Soft Tissue sarcOma

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05917301
Acronym
PRONTO
Enrollment
40
Registered
2023-06-23
Start date
2024-04-18
Completion date
2032-12-01
Last updated
2026-04-17

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

Conditions

Soft Tissue Sarcoma

Keywords

proton therapy, soft tissue sarcoma, hypofractionated

Brief summary

This study is being done to examine whether proton therapy for certain kinds of sarcomas (extremity and trunk soft tissue) is safe and effective. As part of the study, patients will have five fractions of proton therapy before the participants have surgery for the sarcoma. The study will measure wound complications and functional outcomes / quality of life after the procedures. Patients will be asked to complete questionnaires about the treatment and quality of life from the time of enrollment until about two years after surgery. Otherwise, the participants will have standard of care follow ups with the treatment team.

Interventions

This study is being done to see if hypofractionation in treating sarcoma, will also provide patients with a faster and safer treatment outcome.

Sponsors

Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Lead SponsorOTHER
Robert L. Sloan Fund for Cancer Research
CollaboratorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Adult patients (≥18 years of age) * Patients with primary or locally recurrent extremity or truncal soft tissue sarcoma * WHO/ECOG status ≤2

Exclusion criteria

* History of prior local radiation therapy * Inability to tolerate treatment position for duration of simulation or treatment * Tumor originating in retroperitoneal location * Patients planned for systemic therapy including chemotherapy, targeted agents, and immunotherapy * Co-existing malignancy or treated malignancy in the last 2 years expected to limit life expectancy; does not include completely resected cutaneous basal cell carcinoma, squamous cell carcinoma, in situ breast or cervical malignancies, or other pathologies at the discretion of the investigators. * Confirmed pregnancy.

Design outcomes

Primary

MeasureTime frameDescription
Rate of major wound complications90 days after surgeryNumber of major wound complications as defined by the CAN-NCIC-SR2 trial ("secondary operation under general or regional anaesthesia for wound repair (debridement, operative drainage, and secondary wound closure including rotationplasty, free flaps, or skin grafts), or wound management without secondary operation…\[including\] an invasive procedure without general or regional anaesthesia (mainly aspiration of seroma), readmission for wound care such as intravenous antibiotics, or persistent deep packing for 120 days or longer.")

Secondary

MeasureTime frameDescription
Incidence of acute grade ≥3 adverse events2 years after treatmentRate of acute grade 3 or higher adverse events (CTCAE5)
Rate of local recurrence free survival1 and 2 years after enrollmentNumber of patients without local recurrence on CT and/or MRI at specified time points.
Rate of metastasis free survival1 and 2 years after enrollmentNumber of patients without metastasis on CT and/or MRI at specified time points.
Rate of late grade ≥2 radiation toxicitymedian two year follow upRate of grade 2 or higher CTCAE5 adverse events associated with radiation therapy (fibrosis, lymphedema, or joint stiffness).
Musculoskeletal Tumor Rating Scale scoresbaseline, 2-12 weeks after end of radiation therapy, after surgery (3-6 month follow up), every 3 months during follow up for 2 yearsThe Musculoskeletal Tumor Rating Scale measures physical function in patients with musculoskeletal tumors. The total score for the MSTS ranges 0-30 with higher scores indicating better function.
Toronto Extremity Salvage Score (TESS) scoresbaseline, 2-12 weeks after end of radiation therapy, after surgery (3-6 month follow up), every 3 months during follow up for 2 yearsThe Toronto Extremity Salvage Score (TESS) measures physical function in patients with musculoskeletal tumors. The total score for the TESS ranges 0-100 with higher scores indicating better function.
Functional Assessment of Cancer Therapy-General (FACT-G) scoresbaseline, 2-12 weeks after end of radiation therapy, after surgery (3-6 month follow up), every 3 months during follow up for 2 yearsThe Functional Assessment of Cancer Therapy-General (FACT-G) measures quality of life for patients with cancer. The total score for the FACT-G ranges 0-108 with higher scores indicating better function.
Rate of pathologic complete responsethrough study conclusion (estimated 5 years from opening)Pathologic complete response rate is reported as the number of patients who achieve pathologic complete response after treatment. As per the NCCN guidelines, pathologic response is graded by the system recommended by the AJCC Cancer Staging Manual and CAP guidelines: Complete response - no remaining viable cancer cells Moderate response - only small clusters/single cancer cells remain Minimal response - residual cancer remaining, but with predominant fibrosis Poor response - minimal/no tumor kills, extensive residual cancer

Countries

United States

Contacts

CONTACTCurtiland Deville, MD
cdeville@jhmi.edu202-537-4788
CONTACTRyan Manuel
rmanuel5@jhmi.edu
PRINCIPAL_INVESTIGATORCurtland Deville, MD

Johns Hopkins School of Medicine

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 18, 2026