Skip to content

Bacterial Decolonization Plus Intraoperative Angiography for Soft Tissue Sarcomas Receiving Preoperative Radiotherapy (CONCERTO)

Bacterial Decolonization Plus Intraoperative Indocyanine Green Angiography for Soft Tissue Sarcomas of the Lower Extremity Receiving Preoperative Radiotherapy (CONCERTO)

Status
Not yet recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06712433
Acronym
CONCERTO
Enrollment
31
Registered
2024-12-02
Start date
2026-09-30
Completion date
2028-09-30
Last updated
2026-02-09

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

Conditions

Sarcoma,Soft Tissue

Keywords

bacterial decolonization (BD), external beam radiotherapy (RT), wide local excision (WLE), intraoperative IICG angiography

Brief summary

This trial will investigate the combination of two low-cost, non-toxic strategies to assess whether they can reduce the risk of acute major wound complications in soft tissue sarcoma of the lower extremity. Intranasal mupirocin ointment twice daily and chlorhexidine body cleanser once daily for 5 days prior to radiation therapy and repeated for 5 days every 2 weeks during radiation therapy may significantly reduce the risk of acute radiation dermatitis. That, along with use of indocyanine green (ICG) angiography at the time of wound closure.

Detailed description

Strategies to reduce the risk of acute wound complications have historically been mostly unsuccessful. In soft tissue sarcomas, a prior study showed that the use of indocyanine green (ICG) angiography at the time of wound closure was associated with a reduction in wound dehiscence and infection when compared to historical controls. Cutaneous colonization of S. aureus has been implicated in severe cases of radiation dermatitis. Some known risk factors for acute major wound complications for patients with sarcomas are anatomic location in the lower extremity, preoperative radiation therapy, larger tumors, comorbidities (e.g., diabetes mellitus, tobacco usage, vascular disease, and obesity), tumors \<3mm from skin surface, and the development of grade ≥ 2 acute radiation dermatitis. Both large tumors and lower extremity location can increase the likelihood of seroma formation, which can act as a nidus for infection and subsequent wound complication. Rationale for this trial includes prior studies of treating patients with a bacterial decolonization (BD) protocol of intranasal mupirocin ointment twice daily and chlorhexidine body cleanser once daily for 5 days prior to RT and repeated for 5 days every 2 weeks during radiation therapy that show significantly reduced risk of acute radiation dermatitis.

Interventions

DRUG2% intranasal mupirocin ointment

Mupirocin nasal ointment is used to treat or prevent infections in the nose due to certain strains of Staphylococcus aureus bacteria. This medicine works by killing bacteria or preventing their growth.

DRUG4% chlorhexidine gluconate body cleanser

Chlorhexidine Gluconate (CHG) Solution Antiseptic Skin Cleanser solution is a topical skin cleanser that keeps working after it is used. CHG is a strong antiseptic (liquid used to kill germs and bacteria) that lowers the risk of infection.

Sponsors

Adam Olson
Lead SponsorOTHER
Pittsburgh Cure Sarcoma
CollaboratorUNKNOWN

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

1. Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0-2 2. Newly diagnosed soft tissue sarcoma arising from the lower extremity (defined as the tumor center arising at the level of the iliac crest or below) 3. Eligible for wide local excision 4. Eligible for external beam radiation therapy 5. Negative serum pregnancy test for women of childbearing potential \< 28 days prior to RT. 6. Informed consent signed and dated to participate in the study. 7. Willingness and ability to comply

Exclusion criteria

1. Allergy to mupirocin and/or chlorhexidine 2. Active dermatologic condition in RT field 3. Tumor size \> 32cm 4. Prior RT overlapping with fields 5. Concurrent/prior invasive malignancy that could potentially interfere with proposed treatment. Individual cases can be discussed with PI prior to registration

Design outcomes

Primary

MeasureTime frameDescription
Incidence and type of acute major wound complicationsUp to 24 monthsIncidence and type of acute major wound complications: One or more of the following events occurring within 4 months of index sarcoma surgery including: 1). A secondary operation under general or regional anesthesia for wound repair (debridement, operative drainage, and secondary wound closure including rotationplasty, free flaps, or skin grafts), 2). Wound management without secondary operation, such, An invasive procedure without general or regional anesthesia (such as aspiration of seroma), Readmission for wound care such as intravenous antibiotics, or Persistent deep packing for 120 days or longer.

Secondary

MeasureTime frameDescription
1-year Local controlAt 1 yearLocal control is defined as the proportion of patients without clinical evidence of local recurrence. This will be reported as will a cumulative incidence curve of local failures, considering using death as a competing risk, using the cumulative incidence function method.
2-year Local controlAt 2 yearsLocal control is defined as the proportion of patients without clinical evidence of local recurrence. This will be reported as will a cumulative incidence curve of local failures, considering using death as a competing risk, using the cumulative incidence function method.
Progression-free survival (PFS)Up to 24 monthsMedian number of months from start of treatment until the date of disease progression or death from any cause.
Overall survival (OS)Up to 24 monthsMedian number of months from start of treatment until death from any cause.
Musculoskeletal Tumour Society Score [MSTS]Up to 24 monthsThe MSTS is a patient questionnaire for assessing physical function after medical treatment, surgery, and physiotherapy in patients with malignant bone tumors in specific extremities. The MSTS questionnaire consists of six domains, each scored on a scale from 0 to 5, with a higher score indicating better function. The total score, ranging from 0 (maximum disability) to 30 (no impairment), can be transformed to a point scale of 0 to 100.
Toronto Extremity Salvage Score [TESS]Up to 24 monthsTESS represents the gold standard for assessing function after surgery for muscle and bone tumors, as it has been tested for validity and reliability, and extremity-specifically defines disability, handicap, change in physical function depending on the therapeutic intervention and the patient's need for an aid. The TESS questionnaire has both upper and lower extremity versions. Twenty-nine items are rated on a scale from one to five, with five representing normal activity. The result ranges from 0 to 100, with 100 being the best score.
Adverse Events and Serious Adverse Events related to intervention(s)Up to 24 monthsAdverse Events and Serious Adverse Events per CTCAE v5.0 that attributed to study intervention(s).
Frequency of late toxicitiesUp to 24 monthsAcute toxicities are defined as toxicity occurring during preoperative RT, after RT and prior to surgery, and within 90 days of index resection, assessed using CTCAE v5.0.
Change in type of actual surgical closuresAt surgeryTabulation of the initial surgical closure intended, and the actual surgical closure used at the time of index resection. Descriptive statistics will be used to summarize these assessments.

Countries

United States

Contacts

CONTACTSamantha Demko, RN
albesl@upmc.edu412-623-1400
CONTACTBrieanna Marino, MS
rowlesbm@upmc.edu412-647-8258
PRINCIPAL_INVESTIGATORAdam M Olson, MD

UPMC Hillman Cancer Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026