Otitis MediaPhase 4NCT03655665
Does Topical Otic Drop Use at Time of Tympanostomy Tube Surgery Improve Outcomes When no Middle Ear Effusion is Present
A Phase 4 study testing Ofloxacin otic solution in people with Otitis Media, run by Boston Children's Hospital at 1 site in United States.
Trial summary
To determine whether the use of topical otic drops intra-operative and post-operative during tympanostomy tube placement reduces the rate of tympanostomy tube occlusion and post-operative otorrhea (ear drainage) during the initial 4-week post-operative period in subjects with no middle ear effusion (fluid behind the… Read more about this study
- Who is it for?
- Ages 6 months to 10 years
- Conditions the study is for
- Otitis Media
- What is being tested?
- Ofloxacin otic solution
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 9 participants
- Where
- 1 siteUnited States
- Study dates
- 16 May 2019to 6 Aug 2024
- Phase
- Phase 4
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 6 months to 10 years
- All sexes
- No healthy volunteers
- Child
Who may be able to join
- Participant has a history of Eustachian tube dysfunction (ETD) or recurrent acute otitis media (AOM) requiring surgery for bilateral TT placement
- Participant's caregiver understands the protocol and is willing to comply with the protocol
- Children ages 6 months to 10 years undergoing surgery for bilateral tympanostomy tube placement without middle ear fluid on the day of their surgery
Who cannot join
- Participant is having concomitant procedures performed at the time of their tympanostomy tube surgery (i.ei.e. adenoidectomy, airway endoscopy, nasal cautery).
- Historyof conductive hearing loss, as determined from their last audiogram prior to tympanostomy tube procedure
- Middle ear effusion present in either their left or right ear on the day of tympanostomy tube surgery
- Current diagnosis of craniofacial abnormalities, Trisomy 21, primary ciliary dyskinesia, cystic fibrosis
- History of a known immunodeficiency disease
Trial locations and contacts
1 site in 1 country.
United States1 site
Boston Children's Hospital at Waltham
Waltham, Massachusetts, 02453
About this study
Official title: Does the Use of Topical Otic Drops at the Time of Tympanostomy Tube Placement Improve Outcomes When no Middle Ear Effusion is Present at the Time of Surgery
To determine whether the use of topical otic drops intra-operative and post-operative during tympanostomy tube placement reduces the rate of tympanostomy tube occlusion and post-operative otorrhea (ear drainage) during the initial 4-week post-operative period in subjects with no middle ear effusion (fluid behind the ear drum) present at the time of surgery. A within subject controlled study design will be utilized to study this effect. Subjects with absent middle ear effusion who are receiving tympanostomy tube placement will receive a standard protocol of Floxin topical drops during surgery and after surgery in one ear. Selection of ear (right ear or left ear) will be randomized. The primary measured outcome will be the rate of tympanostomy tube occlusion within first 4 weeks postoperatively. The secondary measured outcome is the rate of tympanostomy tube otorrhea (drainage) within first 4 weeks postoperatively.
Read the detailed description
Background and Significance: Two major factors affecting the delivery of quality patient care today are cost of care and development of antibiotic resistance. If no significant difference is found in the rate of tympanostomy tube occlusion and drainage in subects receiving ear drops after surgery and those not receiving ear drops, may help prevent the development of antibiotic resistance and could possibly reduce the cost of care for families.
Tympanostomy tube(s) (TT) insertion is the most common otolaryngologic procedure for children and adolescents who suffer from chronic otitis media. TT(s) are inserted by a surgeon through the eardrum to regulate pressure in the middle ear and to aid with ear drainage and ventilation. In order for TT(s) to ventilate the middle ear space properly, they must remain unobstructed. Otorrhea is one of the most common complications following TT(s) insertion. Previous research has suggested that various factors may lead to TT(s) occlusion, including blood, debris, purulent otorrhea and tube size. A 2014 study by Conrad et al., found that patients with the presence of middle ear effusion at the time of surgery were more likely to experience tube occlusions than patients without fluid. However, studies demonstrating the most effective treatment for preventing postoperative otorrhea and TT occlusion are limited.
How to reduce the risk of post-operative TT otorrhea and TT occlusion is a common question among otolaryngologists and researchers and the efficacy of ototopical drops has been debated for patients without middle ear fluid. There is conflicting information in the current literature about the utility of these topical otic drops in patients with dry ears on the day of surgery. A 2008 review of seven randomized controlled trials completed by Schmelzle and colleagues concluded that fluoroquinolone based topical otic drops are the most effective treatment for patients with acute otitis media and TTs when compared to systemic antibiotic treatment and placebo. However, this treatment has been long debated. A 1991 study published by Ramadan, Tarazi, and Zaytoun found that there was no statistical difference between treated vs. not treated group in the development of post-operative otorrhea; however, all of these patients had middle ear effusions at the time of TT placement. Concurrently, a 2009 ex vivo study by Burke and colleagues on clotted TT(s) found that the administration of a solution of vinegar and hydrogen peroxide produced patent tubes at a higher rate than antibiotic otic drops.
Additionally, antibiotic resistance is a growing concern when treating with oral antibiotic therapy. While the placement of tympanostomy tubes does reduce the need for oral antibiotic therapy, resistant strains of bacteria such as methicillin-resistance staphylococcus aureus (MRSA) have become more prevalent in children with tympanostomy tubes.
Given the lack of evidence-based research, the decision for usage of topical otic drops when there is no middle ear fluid present is based on the subject's medical history and clinical judgment of the treating physician. Some providers opt to use topical otic drops in the absence of middle ear effusion, and some providers forgo the use of drops intra- and/or post-operatively. When topical otic drops are used as part of standard of care they are placed bilaterally, and patients receive variable amounts of otic solution intra- and post-operatively, also based on clinician preference.
Some providers believe that the use of topical otic drops in the absence of middle ear fluid effectively lessens the potential of a post-operative negative outcome such as TT occlusion. If this is true, not using topical otic drops intra- or post-operatively exposes the patient to a higher risk of a negative surgical outcome. However, there is currently insufficient clinical evidence to support the efficacy of topical drops in that specific clinical scenario. If indeed topical otic drops do not effectively improve post-operative outcomes, then the use of them is exposing the patient to antibiotics and adding to the cost of their care unnecessarily. The goal of this present study is to demonstrate whether the use of topical ofloxacin otic drops in patients with absent middle ear effusion on the day of TT surgery impacts the development of post-operative tube otorrhea or occlusion.
In the proposed study, subjects' ears will be randomized and ofloxacin drops will be administered intra- and post-operatively in either their left or right ear, depending on treatment group. Subjects will be followed-up at their 4-week appointment to determine presence of otorrhea and patency of tubes.
- Conditions
- Otitis Media
- Being tested
- Ofloxacin otic solution
- Medical subject headings
- Otitis Media
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Ofloxacin otic solutionDrug
Also called Floxin Otic
Three drops of ofloxacin otic 0.3%. intra and post-operatively for 3 days post-surgery on one ear.
| Study group | Role | What they receive |
|---|---|---|
| Treatment Ear | Experimental | Participants will serve their own control. Participants will receive 3 drops of ofloxacin otic solution intra- and post-operatively 3 times per day for 3 days in ONE ear. Ear sidedness will be randomized by participant. Receives: Drug: Ofloxacin otic solution |
| No Intervention | No intervention | Participants will serve their own control. Participants will receive no intervention in the ear contralateral to the treated ear. Ear sidedness will be randomized by participant. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percentage of Patients With Tympanostomy Tube Occlusion
Any non-"large volume" ear canal volume (less than 1.00cc volume) measurement at 4 week visit, in conjunction with physical examination notable for occluded TT, would be consistent with tube occlusion.
Measured: 0-35 days post-op
Secondary outcomes (1)
Percentage of Patients With Otorrhea (Drainage From the Ear)
Any drainage of liquid from the ear. Can be clear, bloody, or purulent
Measured: 0-35 days post-op
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted31 Aug 2018
- Study start16 May 2019
- Primary completion1 Jun 2024
- Study completion6 Aug 2024
Why it stopped: There was limited enrollment in the study.
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (10)Papers the sponsor has linked to this study.
- Other trials for Otitis MediaStudies of the same condition, open and under way.
- More trials run by Boston Children's HospitalThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Clinical effectiveness model. Each subject will serve as their own control. Subject's ears will be randomized.
- Masking
- None (open label)
- Enrolment
- 9 participants (actual)
Sponsor and investigators
- Lead sponsor
- Boston Children's Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Kenneth Whittemore, Boston Children's Hospital
- Investigators
- Kenneth R. Whittemore, MD, MS, Principal investigator, Boston Children's Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03655665
- Sponsor's protocol ID
- P00026372
- Status last verified
- Aug 2026
- First submitted
- 22 Aug 2018
- Last updated
- 14 Sep 2026
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Rosenfeld RM, Schwartz SR, Pynnonen MA, Tunkel DE, Hussey HM, Fichera JS, Grimes AM, Hackell JM, Harrison MF, Haskell H, Haynes DS, Kim TW, Lafreniere DC, LeBlanc K, Mackey WL, Netterville JL, Pipan ME, Raol NP, Schellhase KG. Clinical practice guideline: Tympanostomy tubes in children. Otolaryngol Head Neck Surg. 2013 Jul;149(1 Suppl):S1-35. doi: 10.1177/0194599813487302.
PubMed 23818543Kay DJ, Nelson M, Rosenfeld RM. Meta-analysis of tympanostomy tube sequelae. Otolaryngol Head Neck Surg. 2001 Apr;124(4):374-80. doi: 10.1067/mhn.2001.113941.
PubMed 11283489van Dongen TM, van der Heijden GJ, Freling HG, Venekamp RP, Schilder AG. Parent-reported otorrhea in children with tympanostomy tubes: incidence and predictors. PLoS One. 2013 Jul 12;8(7):e69062. doi: 10.1371/journal.pone.0069062. Print 2013.
PubMed 23874870Jeon EJ, Park YS, Lee SK, Chang KH, Park SY, Park KH, Lee DH. Factors of the blockage of ventilation tubes in the immediate postoperative period. Eur Arch Otorhinolaryngol. 2007 Dec;264(12):1393-7. doi: 10.1007/s00405-007-0375-0. Epub 2007 Jul 27.
PubMed 17657506Jamal TS. Avoidance of postoperative blockage of ventilation tubes. Laryngoscope. 1995 Aug;105(8 Pt 1):833-4. doi: 10.1288/00005537-199508000-00012.
PubMed 7543180Schmelzle J, Birtwhistle RV, Tan AK. Acute otitis media in children with tympanostomy tubes. Can Fam Physician. 2008 Aug;54(8):1123-7.
PubMed 18697973Conrad DE, Levi JR, Theroux ZA, Inverso Y, Shah UK. Risk factors associated with postoperative tympanostomy tube obstruction. JAMA Otolaryngol Head Neck Surg. 2014 Aug;140(8):727-30. doi: 10.1001/jamaoto.2014.1176.
PubMed 25009981Ramadan HH, Tarazi T, Zaytoun GM. Use of prophylactic otic drops after tympanostomy tube insertion. Arch Otolaryngol Head Neck Surg. 1991 May;117(5):537. doi: 10.1001/archotol.1991.01870170083018.
PubMed 2021473Burke EL, Walvekar RR, Lin J, Hagan J, Kluka EA. Common agents used to unblock blood clots within tympanostomy tubes: an ex vivo study and review of literature. Int J Pediatr Otorhinolaryngol. 2009 Dec;73(12):1725-8. doi: 10.1016/j.ijporl.2009.09.009. Epub 2009 Sep 30.
PubMed 19796828Giles W, Dohar J, Iverson K, Cockrum P, Hill F, Hill N. Ciprofloxacin/dexamethasone drops decrease the incidence of physician and patient outcomes of otorrhea after tube placement. Int J Pediatr Otorhinolaryngol. 2007 May;71(5):747-56. doi: 10.1016/j.ijporl.2007.01.012. Epub 2007 Feb 20.
PubMed 17316832
Study at a glance
From the registry record, last updated by the sponsor on 14 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Does the Use of Topical Otic Drops at the Time of Tympanostomy Tube Placement Improve Outcomes When no Middle Ear Effusion is Present at the Time of Surgery
- ClinicalTrials.gov ID
- NCT03655665
- Acronym / sponsor ID
- P00026372
- Conditions
- Otitis Media
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- TerminatedReason stopped: There was limited enrollment in the study.
- Enrolment
- 9 participants (actual)
- Lead sponsor
- Boston Children's HospitalUniversity, hospital or other
- Study start
- 16 May 2019 (actual)
- Primary completion
- 1 Jun 2024 (actual)
- Study completion
- 6 Aug 2024 (actual)
- First posted
- 31 Aug 2018 (actual)
- Results
- Posted 17 Jun 2026
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
To determine whether the use of topical otic drops intra-operative and post-operative during tympanostomy tube placement reduces the rate of tympanostomy tube occlusion and post-operative otorrhea (ear drainage) during the initial 4-week post-operative period in subjects with no middle ear effusion (fluid behind the ear drum) present at the time of surgery. A within subject controlled study design will be utilized to study this effect. Subjects with absent middle ear effusion who are receiving tympanostomy tube placement will receive a standard protocol of Floxin topical drops during surgery and after surgery in one ear. Selection of ear (right ear or left ear) will be randomized. The primary measured outcome will be the rate of tympanostomy tube occlusion within first 4 weeks postoperatively. The secondary measured outcome is the rate of tympanostomy tube otorrhea (drainage) within first 4 weeks postoperatively.
Detailed description
Background and Significance: Two major factors affecting the delivery of quality patient care today are cost of care and development of antibiotic resistance. If no significant difference is found in the rate of tympanostomy tube occlusion and drainage in subects receiving ear drops after surgery and those not receiving ear drops, may help prevent the development of antibiotic resistance and could possibly reduce the cost of care for families.
Tympanostomy tube(s) (TT) insertion is the most common otolaryngologic procedure for children and adolescents who suffer from chronic otitis media. TT(s) are inserted by a surgeon through the eardrum to regulate pressure in the middle ear and to aid with ear drainage and ventilation. In order for TT(s) to ventilate the middle ear space properly, they must remain unobstructed. Otorrhea is one of the most common complications following TT(s) insertion. Previous research has suggested that various factors may lead to TT(s) occlusion, including blood, debris, purulent otorrhea and tube size. A 2014 study by Conrad et al., found that patients with the presence of middle ear effusion at the time of surgery were more likely to experience tube occlusions than patients without fluid. However, studies demonstrating the most effective treatment for preventing postoperative otorrhea and TT occlusion are limited.
How to reduce the risk of post-operative TT otorrhea and TT occlusion is a common question among otolaryngologists and researchers and the efficacy of ototopical drops has been debated for patients without middle ear fluid. There is conflicting information in the current literature about the utility of these topical otic drops in patients with dry ears on the day of surgery. A 2008 review of seven randomized controlled trials completed by Schmelzle and colleagues concluded that fluoroquinolone based topical otic drops are the most effective treatment for patients with acute otitis media and TTs when compared to systemic antibiotic treatment and placebo. However, this treatment has been long debated. A 1991 study published by Ramadan, Tarazi, and Zaytoun found that there was no statistical difference between treated vs. not treated group in the development of post-operative otorrhea; however, all of these patients had middle ear effusions at the time of TT placement. Concurrently, a 2009 ex vivo study by Burke and colleagues on clotted TT(s) found that the administration of a solution of vinegar and hydrogen peroxide produced patent tubes at a higher rate than antibiotic otic drops.
Additionally, antibiotic resistance is a growing concern when treating with oral antibiotic therapy. While the placement of tympanostomy tubes does reduce the need for oral antibiotic therapy, resistant strains of bacteria such as methicillin-resistance staphylococcus aureus (MRSA) have become more prevalent in children with tympanostomy tubes.
Given the lack of evidence-based research, the decision for usage of topical otic drops when there is no middle ear fluid present is based on the subject's medical history and clinical judgment of the treating physician. Some providers opt to use topical otic drops in the absence of middle ear effusion, and some providers forgo the use of drops intra- and/or post-operatively. When topical otic drops are used as part of standard of care they are placed bilaterally, and patients receive variable amounts of otic solution intra- and post-operatively, also based on clinician preference.
Some providers believe that the use of topical otic drops in the absence of middle ear fluid effectively lessens the potential of a post-operative negative outcome such as TT occlusion. If this is true, not using topical otic drops intra- or post-operatively exposes the patient to a higher risk of a negative surgical outcome. However, there is currently insufficient clinical evidence to support the efficacy of topical drops in that specific clinical scenario. If indeed topical otic drops do not effectively improve post-operative outcomes, then the use of them is exposing the patient to antibiotics and adding to the cost of their care unnecessarily. The goal of this present study is to demonstrate whether the use of topical ofloxacin otic drops in patients with absent middle ear effusion on the day of TT surgery impacts the development of post-operative tube otorrhea or occlusion.
In the proposed study, subjects' ears will be randomized and ofloxacin drops will be administered intra- and post-operatively in either their left or right ear, depending on treatment group. Subjects will be followed-up at their 4-week appointment to determine presence of otorrhea and patency of tubes.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- Clinical effectiveness model. Each subject will serve as their own control. Subject's ears will be randomized.
| Arm | Type | Receives |
|---|---|---|
| Treatment Ear | Experimental | Drug: Ofloxacin otic solutionParticipants will serve their own control. Participants will receive 3 drops of ofloxacin otic solution intra- and post-operatively 3 times per day for 3 days in ONE ear. Ear sidedness will be randomized by participant. |
| No Intervention | No intervention | –Participants will serve their own control. Participants will receive no intervention in the ear contralateral to the treated ear. Ear sidedness will be randomized by participant. |
Who may qualify
- Ages
- 6 months to 10 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child
Key inclusion criteria (3 listed)
- Participant has a history of Eustachian tube dysfunction (ETD) or recurrent acute otitis media (AOM) requiring surgery for bilateral TT placement
- Participant's caregiver understands the protocol and is willing to comply with the protocol
- Children ages 6 months to 10 years undergoing surgery for bilateral tympanostomy tube placement without middle ear fluid on the day of their surgery
Key exclusion criteria (5 listed)
- Participant is having concomitant procedures performed at the time of their tympanostomy tube surgery (i.ei.e. adenoidectomy, airway endoscopy, nasal cautery).
- Historyof conductive hearing loss, as determined from their last audiogram prior to tympanostomy tube procedure
- Middle ear effusion present in either their left or right ear on the day of tympanostomy tube surgery
- Current diagnosis of craniofacial abnormalities, Trisomy 21, primary ciliary dyskinesia, cystic fibrosis
- History of a known immunodeficiency disease
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Ofloxacin otic solutionAlso: Floxin OticThree drops of ofloxacin otic 0.3%. intra and post-operatively for 3 days post-surgery on one ear. | Drug | Treatment Ear |
Primary outcome
Percentage of Patients With Tympanostomy Tube Occlusion
Time frame: 0-35 days post-op
Any non-"large volume" ear canal volume (less than 1.00cc volume) measurement at 4 week visit, in conjunction with physical examination notable for occluded TT, would be consistent with tube occlusion.
1 secondary outcome
Percentage of Patients With Otorrhea (Drainage From the Ear)
Time frame: 0-35 days post-op
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 14 Sep 2026.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 23818543Rosenfeld RM, Schwartz SR, Pynnonen MA, Tunkel DE, Hussey HM, Fichera JS, Grimes AM, Hackell JM, Harrison MF, Haskell H, Haynes DS, Kim TW, Lafreniere DC, LeBlanc K, Mackey WL, Netterville JL, Pipan ME, Raol NP, Schellhase KG. Clinical practice guideline: Tympanostomy tubes in children. Otolaryngol Head Neck Surg. 2013 Jul;149(1 Suppl):S1-35. doi: 10.1177/0194599813487302.
- Background: PubMed 11283489Kay DJ, Nelson M, Rosenfeld RM. Meta-analysis of tympanostomy tube sequelae. Otolaryngol Head Neck Surg. 2001 Apr;124(4):374-80. doi: 10.1067/mhn.2001.113941.
- Background: PubMed 23874870van Dongen TM, van der Heijden GJ, Freling HG, Venekamp RP, Schilder AG. Parent-reported otorrhea in children with tympanostomy tubes: incidence and predictors. PLoS One. 2013 Jul 12;8(7):e69062. doi: 10.1371/journal.pone.0069062. Print 2013.
- Background: PubMed 17657506Jeon EJ, Park YS, Lee SK, Chang KH, Park SY, Park KH, Lee DH. Factors of the blockage of ventilation tubes in the immediate postoperative period. Eur Arch Otorhinolaryngol. 2007 Dec;264(12):1393-7. doi: 10.1007/s00405-007-0375-0. Epub 2007 Jul 27.
- Background: PubMed 7543180Jamal TS. Avoidance of postoperative blockage of ventilation tubes. Laryngoscope. 1995 Aug;105(8 Pt 1):833-4. doi: 10.1288/00005537-199508000-00012.
- Background: PubMed 18697973Schmelzle J, Birtwhistle RV, Tan AK. Acute otitis media in children with tympanostomy tubes. Can Fam Physician. 2008 Aug;54(8):1123-7.
- Background: PubMed 25009981Conrad DE, Levi JR, Theroux ZA, Inverso Y, Shah UK. Risk factors associated with postoperative tympanostomy tube obstruction. JAMA Otolaryngol Head Neck Surg. 2014 Aug;140(8):727-30. doi: 10.1001/jamaoto.2014.1176.
- Background: PubMed 2021473Ramadan HH, Tarazi T, Zaytoun GM. Use of prophylactic otic drops after tympanostomy tube insertion. Arch Otolaryngol Head Neck Surg. 1991 May;117(5):537. doi: 10.1001/archotol.1991.01870170083018.
- Background: PubMed 19796828Burke EL, Walvekar RR, Lin J, Hagan J, Kluka EA. Common agents used to unblock blood clots within tympanostomy tubes: an ex vivo study and review of literature. Int J Pediatr Otorhinolaryngol. 2009 Dec;73(12):1725-8. doi: 10.1016/j.ijporl.2009.09.009. Epub 2009 Sep 30.
- Background: PubMed 17316832Giles W, Dohar J, Iverson K, Cockrum P, Hill F, Hill N. Ciprofloxacin/dexamethasone drops decrease the incidence of physician and patient outcomes of otorrhea after tube placement. Int J Pediatr Otorhinolaryngol. 2007 May;71(5):747-56. doi: 10.1016/j.ijporl.2007.01.012. Epub 2007 Feb 20.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Kenneth R. Whittemore, MD, MS principal investigator
Boston Children's Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Ofloxacin otic solution in people with Otitis Media, run by Boston Children's Hospital at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: stopped early, as of the sponsor's last update on 14 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 17 Jun 2026). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Percentage of Patients With Tympanostomy Tube Occlusion (time frame: 0-35 days post-op). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT03655665, which also lists 10 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Sep 2026.