A Phase 1 interventional study of Triamcinolone Acetonide in Fibromatosis, sponsored by Mayo Clinic. Completed at 1 site in United States. Open to participants aged 18 Years to 89 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-08-25.
Sponsored by Mayo Clinic · Phase 1, Interventional, and Treatment
There is research supporting treatment of superficial fibromatoses (palmar fibromatosis and keloids) with triamcinolone acetonide injections. These lesions are histologically similar to deep fibromatoses (desmoid tumors). Currently there is little literature evaluating the response of desmoid tumors to injections of triamcinolone acetonide. The investigators aim to perform a pilot study evaluating the response of desmoid tumors to intralesional triamcinolone. If positive results are observed (based on RECIST criteria), then a phase II study will be initiated.
Desmoid tumors are proliferations of fibroblasts and myofibroblasts, intermixed with abundant dense collagen. Histologically they are similar to superficial fibromatoses such as palmar (Dupuytren's disease) and plantar fibromatoses, as well as keloids. Unlike the superficial fibromatoses, desmoid tumors are located in the deep tissue and stratified based on an abdominal or extra-abdominal location.
There are currently many treatment options for desmoid tumors. Historically, wide surgical resection was the treatment of choice. This often resulted in a disfiguring appearance and recurrence was common, with rates between 30 - 40% following resection. Additionally, radiation and systemic therapies are performed, with an approximate 26% rate of objective response, based on RECIST. These therapies are however not without side effects. Observation initially is also a reasonable approach as a recent study reported up to 60% of desmoids demonstrating stable disease and 18% spontaneously regressing over a five year period. Longer follow-up studies are needed to determine the true natural history of desmoid tumors, but there currently is a need for an alternative treatment strategy with increased efficacy and fewer side-effects once observation has failed.
Corticosteroids, such as triamcinolone acetonide, have long been used in the treatment of hypertrophic scars and keloids in order to decrease the size of the lesion. Proposed mechanisms of action of corticosteroids on keloids and hypertrophic scars include a decrease in the production of collagen, dissolution of insoluble collagen (collagenolysis), a decrease in the local inflammatory process, and an increased rate of apoptosis of fibroblast and inflammatory cells. Recently, reports have evaluated the use of triamcinolone acetonide in Dupuytren's disease, a superficial fibromatosis. A randomized controlled trial evaluated range of motion in patients following needle aponeurotomy alone and in combination with serial triamcinolone injections. They found improved range of motion in the triamcinolone cohort up to 24 months following treatment. Similarly, Ketchum et al reported that 97% of Dupuytren's nodules showed clinical regression following an average of 3.2 intralesional injections with triamcinolone acetonide, although half of these patients did experience reactivation of the disease at 1-3 years following treatment.
Currently there is limited reported experience with treatment of desmoid tumors by steroid therapy. Rhee et al reported a case of a chest wall desmoid tumor that recurred after two surgical resections and postoperative radiation therapy. They treated the lesion with weekly intralesional injections of 120 mg of triamcinolone acetonide for 4 weeks. At six months they noted a reduction in the size of the lesion. Similarly, Umemoto et al. reported a case of a 37 year old male with familial polyposis coli and intra-abdominal desmoid tumors. He was treated with oral prednisolone therapy with gradual regression of the lesions. At one year and six months following his last operation, the patient had no signs of recurrence of the desmoid tumors.
Based on this background information we aim to perform a pilot study of 10 patients with a histologically confirmed diagnosis of extra-abdominal aggressive fibromatosis (desmoid tumor) in order to determine the response rate of intralesional injections of triamcinolone acetonide. Response will be evaluated using the World Health Organization (WHO) response criteria, total volume of the tumor, T2 signal hyperintensity, and RECIST.
19 studies on the registry are indexed under Fibroma; 4 are open to participants now.
This study's enrollment of 10 is below the median of 62 across 13 interventional studies indexed under Fibroma.
Browse Fibroma studies →Mayo Clinic is the lead sponsor of 3,269 studies on the registry; 672 are open to participants now.
Of its 452 completed or terminated interventional studies of FDA-regulated products, 321 (71%) have results posted.
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Exclusion Criteria
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
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You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Histologically or cytologically confirmed
The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).
Your pathology report is the document that shows this.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECOG performance status
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
A concentration of 40 mg/ml of Triamcinolone Acetonide will be used for injections with a total dose of 120 mg of Triamcinolone given per injection. The injections will be performed under ultrasound guidance by a fellowship-trained musculoskeletal radiologist. The injection locations will be left to the discretion of the radiologist with the request to attempt to distribute the drug throughout the tumor. A total of three injections will be performed at six week intervals.
Drug: Triamcinolone Acetonide
A concentration of 40 mg/ml of Triamcinolone Acetonide will be used for injections with a total dose of 120 mg of Triamcinolone given per injection. The injections will be performed under ultrasound guidance by a fellowship-trained musculoskeletal radiologist. The injection locations will be left to the discretion of the radiologist with the request to attempt to distribute the drug throughout the tumor. A total of three injections will be performed at six week intervals.
Response rate of desmoid tumors to serial triamcinolone injections based on WHO criteria.
Based on MRI imaging
Time frame: 2 years
Response rate of desmoid tumors to serial triamcinolone injections based on change in tumor volume.
Based on MRI imaging
Time frame: 2 years
Response rate of desmoid tumors to serial triamcinolone injections based on change in T2 signaling hyperintensity.
Based on MRI imaging
Time frame: 2 years
Response rate of desmoid tumors to serial triamcinolone injections based on RECIST.
Based on MRI imaging
Time frame: 2 years
Number patients experiencing a non-serious adverse event following triamcinolone injections.
Defined as any untoward or undesirable experience associated with the use of a medical product.
Time frame: 6 months following initial administration of triamcinolone injections
Number of patients experiencing a serious adverse event following triamcinolone injections.
Including hospitalization, prolonged disability/incapacity, life-threatening adverse experience, birth defect, and death.
Time frame: 6 months following initial adminstration of triamcinolone injections.
Ran from Jun 2018 to primary completion in Jul 2022, 48 months.
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Studies of the drug tested here: Triamcinolone Acetonide