Use of Steroid Injections to Prevent the Recurrence of Tracheal Stenosis in Idiopathic Subglottic Stenosis

NCT ID: NCT07228104

Last Updated: 2026-01-12

Basic Information

• Recruitment Status: NOT_YET_RECRUITING
• Clinical Phase: PHASE3
• Total Enrollment: 226 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2026-03-01
• Study Completion Date: 2032-01-31

Brief Summary

This study will examine the ability of steroid injections into the site of stenosis following surgical dilation to delay the need for repeated surgical dilations.

Conditions

Idiopathic Subglottic Stenosis

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: DOUBLE

Study Groups

Intralesional steroid injection with Triamcinolone

Group Type: EXPERIMENTAL

Triamcinolone 0.1%

Intervention Type: DRUG

Intralesional Triamcinolone injection 3x at one, two, and three months following surgical dilation

Intralesional Placebo injection

Group Type: PLACEBO_COMPARATOR

Placebo

Intervention Type: DRUG

Intralesional Placebo injection 3x at one, two, and three months following surgical dilation

Interventions

Triamcinolone 0.1%

Intralesional Triamcinolone injection 3x at one, two, and three months following surgical dilation

Intervention Type: DRUG

Placebo

Intralesional Placebo injection 3x at one, two, and three months following surgical dilation

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• Have a life expectancy of ≥6 months; and,
• Eastern Cooperative Oncology Group (ECOG) performance status of 0 - 1.

Exclusion Criteria

• History of subglottic stenosis from identifiable cause (not idiopathic), including any of the below clinical criteria:
• Prolonged endotracheal intubation or tracheostomy (intervention greater than 7 days immediately prior to diagnosis of subglottic stenosis);
• External physical trauma (including but not limited to blunt, penetration, chemical, or thermal injury) that causes injury to the subglottis;
• Clinical diagnosis of granulomatosis with polyangiitis (GPA);
• Radiation exposure to the neck;
• Current or previous treatment with Serial Intralesional Steroid Injection (SILSI);
• Use of systemic corticosteroids (oral, intravenous, or intramuscular glucocorticoids), regardless of indication, within 7 days before triamcinolone administration;
• Local administration of corticosteroids (ophthalmic, intranasal, inhaled) is not prohibited. However, the administration of intraarticular corticosteroids during the treatment phase is not recommended due to potential increased risk of infection.
• Intralesional administration, in a site other than the subglottis, of corticosteroids should be discussed with the site PI before enrollment
• Intraarticular corticosteroids during the treatment phase due to potential increased risk of infection;
• Use of anticoagulants other than aspirin (aspirin dose should not exceed 81mg);
• Pulmonary disease including interstitial lung disease and Chronic Obstructive Pulmonary Disease (COPD)/emphysema;
• Systemic infection requiring treatment with antibiotics, antifungal, or antiviral agents within 21 days of enrollment;
• Poorly controlled diabetes as defined by a HbA1C value greater or equal to 8.0 in the last 180 days);
• Participants with active cancer or a history of cancer in the last 5 years, except for squamous or basal cell carcinoma of the skin;
• Participation in any clinical trial involving an investigational drug or device, within four weeks, or 5 half-lives of the investigational agent (whichever time point is longer) prior to enrollment or during this trial participation;
• Active autoimmune disease requiring systemic treatment;
• History of solid organ transplant due to use of immunosuppression;
• Contraindication to any aspect of the index endoscopic dilation procedure.
• Inability to tolerate in office SILSI procedure;
• Contraindication, hypersensitivity, or history of intolerance to oral or injectable steroids;
• Contraindication to intralipid including:
• Severe lipid metabolism disorders characterized by hypertriglyceridemia;
• Hypersensitivity to eggs, soybean, peanut protein, or any active ingredient in intralipid;
• History of intolerance to intralipid;
• Participants with known, suspected, or plan for becoming pregnant or breastfeeding;
• New York Heart Association (NYHA) class II-IV heart failure within the past 6 months;
• History of angioedema;
• History of subglottic stenosis from other causes, including prolonged intubation (intubation of >1 week immediately prior to diagnosis of subglottic stenosis, external physical trauma that causes injury to the subglottis);
• Lack of capacity to consent;
• Alcohol or substance abuse or dependence in the past 6 months;
• Participants who for any reason may not complete the study as judged by the PI;
• Participants planning to move to another city or state during the duration of the study;
• Not able to undergo phlebotomy as reported by the participant or determined by the study coordinator or physician.
• The presence of a medical condition, and/or use of a medication and/or any substance, individually or in aggregate, that in the judgement of the study team could impair study participation.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 80 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

National Heart, Lung, and Blood Institute (NHLBI)

NIH

Sponsor Role: collaborator

Johns Hopkins University

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Alexander Hillel, MD

Role: PRINCIPAL_INVESTIGATOR

Johns Hopkins University

Locations

Johns Hopkins Hospital

Baltimore, Maryland, United States

Countries

United States

Central Contacts

Alexander Hillel, M.D.

Role: CONTACT

ahillel@jh.edu

4432876006

Facility Contacts

Samuel Collins, Ph.D.

Role: primary

scollin7@jh.edu

410-702-0421

Other Identifiers

1UG3HL173394-01A1

Identifier Type: NIH

Identifier Source: secondary_id

View Link

IRB00507375

Identifier Type: -

Identifier Source: org_study_id