Osteogenesis ImperfectaPhase 4NCT04152551
Effects of Bisphosphonates on OI-Related Hearing Loss
A Phase 4 study testing Risedronate Oral Tablet in people with Osteogenesis Imperfecta, run by Hospital for Special Surgery, New York at 1 site in United States.
Trial summary
Osteogenesis Imperfecta-related hearing loss usually occurs in individuals with mild (type I) OI and is much earlier in onset than age-related hearing loss, with the majority of individuals experiencing some minor hearing loss in their 20s. Read more about this study
- Who is it for?
- Ages 6 to 100 yearsHealthy volunteers can take part
- Conditions the study is for
- Osteogenesis Imperfecta
- What is being tested?
- Risedronate Oral Tablet
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 100 participants
- Where
- 1 siteUnited States
- Study dates
- 2 Nov 2019to Jan 2027
- Phase
- Phase 4
- Are there results?
- Not yet: the study is under way
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 to 100 years
- All sexes
- Healthy volunteers accepted
- Child, Adult, Older adult
Who may be able to join
- Diagnosis of OI type I
- Diagnosis of at least mild hearing loss (>20dB pure tone average) by audiogram testing
- 18+
- Vitamin D level > 30
- Diagnosis of OI type I
- Diagnosis of OI
Show all 11Show fewer
- Age 6-17 years
- Currently receiving bisphosphonate treatment as standard of care
- Diagnosis of OI
- Age 6-17 years
- NOT receiving bisphosphonate treatment and will not receive bisphosphonate treatment for the duration of the study
Who cannot join
- Family history of hearing-loss (not related to OI or occupational hearing loss)
- Pregnancy
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Erin Carter, MS, CGC contact
United States1 site, 1 recruiting
- Recruiting
Hospital for Special Surgery
New York, New York, 10021
Su Htwe, (212) 774-2355, htwes@hss.edu
About this study
Official title: Effects of Bisphosphonates on OI-Related Hearing Loss: A Pilot Study
Osteogenesis Imperfecta-related hearing loss usually occurs in individuals with mild (type I) OI and is much earlier in onset than age-related hearing loss, with the majority of individuals experiencing some minor hearing loss in their 20s. Bisphosphonates have been successfully used to treat otosclerosis, a common cause of hearing loss similar to OI-related hearing loss. As many individuals with OI-related hearing loss also present with otosclerosis and because of their mechanistic similarities, the investigators propose studying the effects of bisphosphonate treatment on individuals diagnosed with both OI type I and hearing loss, thereby determining its effectiveness as a potential treatment for hearing loss.
The investigators will enroll 50 individuals diagnosed with type I OI and age 18-100. 25 adults will be enrolled into the treatment arm and receive bisphosphonate treatment (must have at least mild hearing loss), while 25 adults will be enrolled into the control arm. The investigators will enroll 25 children (6-17 years of age) diagnosed with OI who are currently receiving bisphosphonate treatment as part of their care for orthopedic symptoms. The investigators will also observe 25 children (6-17 years of age) diagnosed with OI who are NOT currently receiving bisphosphonate treatment. The study duration is 63 months (approximately 5 years). Enrollment is anticipated to begin in November 2019.
- Conditions
- Osteogenesis Imperfecta
- Being tested
- Risedronate Oral Tablet
- Keywords
- hearing loss, bisphosphonate, skeletal dysplasia, brittle bone disorder, osteogenesis imperfecta, OI
- Medical subject headings
- Osteogenesis Imperfecta, Hearing Loss, Mucopolysaccharidosis IV, Brittle Bone Disorder
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Risedronate Oral TabletDrug
Also called actonel
Oral bisphosphonate
| Study group | Role | What they receive |
|---|---|---|
| Adult Treatment Arm | Experimental | Intervention treatment arm. Adults (18+ years) with type 1 OI. Must have at least mild hearing loss. Will receive Risedronate (35mg, 0-2x/week as clinically indicated) for duration of study. Changes in hearing, quality of life, and bone density will be monitored. Receives: Drug: Risedronate Oral Tablet |
| Child (Bisphosphonate Arm) | No intervention | Observational (no investigational intervention) arm. Children (6-17 years) with any type of OI who are already receiving bisphosphonate treatment as standard of care treatment for orthopedic symptoms. Changes in hearing, quality of life, and bone density will be observed for the duration of the study. |
| Child (Control Arm) | No intervention | Observational arm. Children (6-17 years) with any type of OI who are not receiving bisphosphonate treatment. Changes in hearing, quality of life, and bone density will be observed for the duration of the study. |
| Adult Control Arm | No intervention | Observational arm. Adults (18+ years) with type 1 OI. Changes in hearing, quality of life, and bone density will be monitored. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Pure Tone Averages
Average hearing thresholds at 250, 500, 1000, 2000, 3000, 4000, 8000 Hertz
Measured: Baseline, 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months
Secondary outcomes (10)
Speech Recognition Scores
Lowest volume participant can hear and understand speech (decibels)
Measured: Baseline, 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months
Word Recognition Scores
Percent of words participants correctly repeat in word recognition test (%)
Measured: Baseline, 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months
Hearing Handicap Inventory Raw Score
Score 0-40. Lower score is better. Adults (self-reported)
Measured: Yearly (Baseline, 12, 24, 36, 48, 60 months)
Tinnitus Handicap Inventory Score
Score 0-100. Lower score is better. Adults (self-reported).
Measured: Yearly (Baseline, 12, 24, 36, 48, 60 months)
Dizziness Handicap Inventory Score
Score 0-100. Lower score is better. Adults (self-reported). Incidence and impact of vertigo in study population.
Measured: Yearly (Baseline, 12, 24, 36, 48, 60 months)
SF-36 Scale and Summary Scores
Score 0-100. Higher score is better. Adults (self-reported) quality-of-life survey.
Measured: Yearly (Baseline, 12, 24, 36, 48, 60 months)
Pediatric Outcomes Data Collection Instrument (PODCI) Score
Score 0-100. Lower score is better. Children (ages 6-10 years), parent-reported. Assessment of overall health and functioning.
Measured: Yearly (Baseline, 12, 24, 36, 48, 60 months)
Adolescent Outcomes Questionnaire Score
Score 0-100. Lower score is better. Children (ages 11-17 years), parent- or self-reported. Assessment of overall health and functioning.
Measured: Yearly (Baseline, 12, 24, 36, 48, 60 months)
DEXA Z-score
Higher score is better. Relative Bone Density
Measured: Yearly (Baseline, 12, 24, 36, 48, 60 months)
DEXA Bone Mineral Density
Higher score is better. Bone Mineral Density (grams/centimeter^2)
Measured: Yearly (Baseline, 12, 24, 36, 48, 60 months)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Nov 2019
- Study start2 Nov 2019
- Primary completionJan 2027 (estimated)
- Study completionJan 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (14)Papers the sponsor has linked to this study.
- Other trials for Osteogenesis ImperfectaStudies of the same condition, open and under way.
- More trials run by Hospital for Special Surgery, New YorkThe 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
- Prevention
- Allocation
- Non-randomised
- Intervention model
- Single group
- Model description
- 25 adults with type 1 OI and diagnosed hearing loss will be treated with oral risedronate. 25 adults with type 1 OI will be enrolled into the control arm.
- Masking
- None (open label)
- Enrolment
- 100 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Hospital for Special Surgery, New York
- Sponsor type
- University, hospital or other
- Collaborators
- The New York Community Trust, East River Medical Imaging, Northwell Health
- Responsible party
- Sponsor
- Investigators
- Cathleen Raggio, MD, Principal investigator, Hospital for Special Surgery, New York
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04152551
- Sponsor's protocol ID
- #2018-0700
- Status last verified
- Jan 2026
- First submitted
- 18 Oct 2019
- Last updated
- 28 Apr 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Van Dijk FS, Sillence DO. Osteogenesis imperfecta: clinical diagnosis, nomenclature and severity assessment. Am J Med Genet A. 2014 Jun;164A(6):1470-81. doi: 10.1002/ajmg.a.36545. Epub 2014 Apr 8.
PubMed 24715559Pillion JP, Vernick D, Shapiro J. Hearing loss in osteogenesis imperfecta: characteristics and treatment considerations. Genet Res Int. 2011;2011:983942. doi: 10.4061/2011/983942. Epub 2011 Dec 14.
PubMed 22567374Sillence D. Osteogenesis imperfecta: an expanding panorama of variants. Clin Orthop Relat Res. 1981 Sep;(159):11-25.
PubMed 7285446Swinnen FK, De Leenheer EM, Coucke PJ, Cremers CW, Dhooge IJ. Audiometric, surgical, and genetic findings in 15 ears of patients with osteogenesis imperfecta. Laryngoscope. 2009 Jun;119(6):1171-9. doi: 10.1002/lary.20155.
PubMed 19358256Berger G, Hawke M, Johnson A, Proops D. Histopathology of the temporal bone in osteogenesis imperfecta congenita: a report of 5 cases. Laryngoscope. 1985 Feb;95(2):193-9. doi: 10.1288/00005537-198502000-00014.
PubMed 3918222Vincent R, Wegner I, Stegeman I, Grolman W. Stapedotomy in osteogenesis imperfecta: a prospective study of 32 consecutive cases. Otol Neurotol. 2014 Dec;35(10):1785-9. doi: 10.1097/MAO.0000000000000372.
PubMed 24751750Plotkin LI, Weinstein RS, Parfitt AM, Roberson PK, Manolagas SC, Bellido T. Prevention of osteocyte and osteoblast apoptosis by bisphosphonates and calcitonin. J Clin Invest. 1999 Nov;104(10):1363-74. doi: 10.1172/JCI6800.
PubMed 10562298Rogers MJ, Frith JC, Luckman SP, Coxon FP, Benford HL, Monkkonen J, Auriola S, Chilton KM, Russell RG. Molecular mechanisms of action of bisphosphonates. Bone. 1999 May;24(5 Suppl):73S-79S. doi: 10.1016/s8756-3282(99)00070-8. No abstract available.
PubMed 10321934Drake MT, Clarke BL, Khosla S. Bisphosphonates: mechanism of action and role in clinical practice. Mayo Clin Proc. 2008 Sep;83(9):1032-45. doi: 10.4065/83.9.1032.
PubMed 18775204Kanzaki S, Ito M, Takada Y, Ogawa K, Matsuo K. Resorption of auditory ossicles and hearing loss in mice lacking osteoprotegerin. Bone. 2006 Aug;39(2):414-9. doi: 10.1016/j.bone.2006.01.155. Epub 2006 Mar 24.
PubMed 16564235Quesnel AM, Seton M, Merchant SN, Halpin C, McKenna MJ. Third-generation bisphosphonates for treatment of sensorineural hearing loss in otosclerosis. Otol Neurotol. 2012 Oct;33(8):1308-14. doi: 10.1097/MAO.0b013e318268d1b3.
PubMed 22935809Kang WS, Nguyen K, McKenna CE, Sewell WF, McKenna MJ, Jung DH. Measurement of Ototoxicity Following Intracochlear Bisphosphonate Delivery. Otol Neurotol. 2016 Jul;37(6):621-6. doi: 10.1097/MAO.0000000000001042.
PubMed 27153329Ting TH, Zacharin MR. Hearing in bisphosphonate-treated children with osteogenesis imperfecta: our experience in thirty six young patients. Clin Otolaryngol. 2012 Jun;37(3):229-33. doi: 10.1111/j.1749-4486.2012.02476.x. No abstract available.
PubMed 22708940Patel RM, Nagamani SC, Cuthbertson D, Campeau PM, Krischer JP, Shapiro JR, Steiner RD, Smith PA, Bober MB, Byers PH, Pepin M, Durigova M, Glorieux FH, Rauch F, Lee BH, Hart T, Sutton VR. A cross-sectional multicenter study of osteogenesis imperfecta in North America - results from the linked clinical research centers. Clin Genet. 2015 Feb;87(2):133-40. doi: 10.1111/cge.12409. Epub 2014 May 30.
PubMed 24754836
Study at a glance
From the registry record, last updated by the sponsor on 28 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of Bisphosphonates on OI-Related Hearing Loss: A Pilot Study
- ClinicalTrials.gov ID
- NCT04152551
- Acronym / sponsor ID
- #2018-0700
- Conditions
- Osteogenesis Imperfecta
- Keywords
- hearing loss, bisphosphonate, skeletal dysplasia, brittle bone disorder, osteogenesis imperfecta, OI
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 100 participants (estimated)
- Lead sponsor
- Hospital for Special Surgery, New YorkUniversity, hospital or other
- Collaborators
- The New York Community Trust, East River Medical Imaging, Northwell Health
- Study start
- 2 Nov 2019 (actual)
- Primary completion
- Jan 2027 (estimated)
- Study completion
- Jan 2027 (estimated)
- First posted
- 5 Nov 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Osteogenesis Imperfecta-related hearing loss usually occurs in individuals with mild (type I) OI and is much earlier in onset than age-related hearing loss, with the majority of individuals experiencing some minor hearing loss in their 20s. Bisphosphonates have been successfully used to treat otosclerosis, a common cause of hearing loss similar to OI-related hearing loss. As many individuals with OI-related hearing loss also present with otosclerosis and because of their mechanistic similarities, the investigators propose studying the effects of bisphosphonate treatment on individuals diagnosed with both OI type I and hearing loss, thereby determining its effectiveness as a potential treatment for hearing loss.
The investigators will enroll 50 individuals diagnosed with type I OI and age 18-100. 25 adults will be enrolled into the treatment arm and receive bisphosphonate treatment (must have at least mild hearing loss), while 25 adults will be enrolled into the control arm. The investigators will enroll 25 children (6-17 years of age) diagnosed with OI who are currently receiving bisphosphonate treatment as part of their care for orthopedic symptoms. The investigators will also observe 25 children (6-17 years of age) diagnosed with OI who are NOT currently receiving bisphosphonate treatment. The study duration is 63 months (approximately 5 years). Enrollment is anticipated to begin in November 2019.
Study design
- Primary purpose
- Prevention
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 4
- Model description
- 25 adults with type 1 OI and diagnosed hearing loss will be treated with oral risedronate. 25 adults with type 1 OI will be enrolled into the control arm.
| Arm | Type | Receives |
|---|---|---|
| Adult Treatment Arm | Experimental | Drug: Risedronate Oral TabletIntervention treatment arm. Adults (18+ years) with type 1 OI. Must have at least mild hearing loss. Will receive Risedronate (35mg, 0-2x/week as clinically indicated) for duration of study. Changes in hearing, quality of life, and bone density will be monitored. |
| Child (Bisphosphonate Arm) | No intervention | –Observational (no investigational intervention) arm. Children (6-17 years) with any type of OI who are already receiving bisphosphonate treatment as standard of care treatment for orthopedic symptoms. Changes in hearing, quality of life, and bone density will be observed for the duration of the study. |
| Child (Control Arm) | No intervention | –Observational arm. Children (6-17 years) with any type of OI who are not receiving bisphosphonate treatment. Changes in hearing, quality of life, and bone density will be observed for the duration of the study. |
| Adult Control Arm | No intervention | –Observational arm. Adults (18+ years) with type 1 OI. Changes in hearing, quality of life, and bone density will be monitored. |
Who may qualify
- Ages
- 6 to 100 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (11 listed)
- Diagnosis of OI type I
- Diagnosis of at least mild hearing loss (>20dB pure tone average) by audiogram testing
- 18+
- Vitamin D level > 30
- Diagnosis of OI type I
Key exclusion criteria (2 listed)
- Family history of hearing-loss (not related to OI or occupational hearing loss)
- Pregnancy
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 |
|---|---|---|
| Risedronate Oral TabletAlso: actonelOral bisphosphonate | Drug | Adult Treatment Arm |
Primary outcome
Pure Tone Averages
Time frame: Baseline, 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months
Average hearing thresholds at 250, 500, 1000, 2000, 3000, 4000, 8000 Hertz
10 secondary outcomes
Speech Recognition Scores
Time frame: Baseline, 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months
Word Recognition Scores
Time frame: Baseline, 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months
Hearing Handicap Inventory Raw Score
Time frame: Yearly (Baseline, 12, 24, 36, 48, 60 months)
Tinnitus Handicap Inventory Score
Time frame: Yearly (Baseline, 12, 24, 36, 48, 60 months)
Dizziness Handicap Inventory Score
Time frame: Yearly (Baseline, 12, 24, 36, 48, 60 months)
SF-36 Scale and Summary Scores
Time frame: Yearly (Baseline, 12, 24, 36, 48, 60 months)
Pediatric Outcomes Data Collection Instrument (PODCI) Score
Time frame: Yearly (Baseline, 12, 24, 36, 48, 60 months)
Adolescent Outcomes Questionnaire Score
Time frame: Yearly (Baseline, 12, 24, 36, 48, 60 months)
DEXA Z-score
Time frame: Yearly (Baseline, 12, 24, 36, 48, 60 months)
DEXA Bone Mineral Density
Time frame: Yearly (Baseline, 12, 24, 36, 48, 60 months)
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Apr 2026.
- Background: PubMed 24715559Van Dijk FS, Sillence DO. Osteogenesis imperfecta: clinical diagnosis, nomenclature and severity assessment. Am J Med Genet A. 2014 Jun;164A(6):1470-81. doi: 10.1002/ajmg.a.36545. Epub 2014 Apr 8.
- Background: PubMed 22567374Pillion JP, Vernick D, Shapiro J. Hearing loss in osteogenesis imperfecta: characteristics and treatment considerations. Genet Res Int. 2011;2011:983942. doi: 10.4061/2011/983942. Epub 2011 Dec 14.
- Background: PubMed 7285446Sillence D. Osteogenesis imperfecta: an expanding panorama of variants. Clin Orthop Relat Res. 1981 Sep;(159):11-25.
- Background: PubMed 19358256Swinnen FK, De Leenheer EM, Coucke PJ, Cremers CW, Dhooge IJ. Audiometric, surgical, and genetic findings in 15 ears of patients with osteogenesis imperfecta. Laryngoscope. 2009 Jun;119(6):1171-9. doi: 10.1002/lary.20155.
- Background: PubMed 3918222Berger G, Hawke M, Johnson A, Proops D. Histopathology of the temporal bone in osteogenesis imperfecta congenita: a report of 5 cases. Laryngoscope. 1985 Feb;95(2):193-9. doi: 10.1288/00005537-198502000-00014.
- Background: PubMed 24751750Vincent R, Wegner I, Stegeman I, Grolman W. Stapedotomy in osteogenesis imperfecta: a prospective study of 32 consecutive cases. Otol Neurotol. 2014 Dec;35(10):1785-9. doi: 10.1097/MAO.0000000000000372.
- Background: PubMed 10562298Plotkin LI, Weinstein RS, Parfitt AM, Roberson PK, Manolagas SC, Bellido T. Prevention of osteocyte and osteoblast apoptosis by bisphosphonates and calcitonin. J Clin Invest. 1999 Nov;104(10):1363-74. doi: 10.1172/JCI6800.
- Background: PubMed 10321934Rogers MJ, Frith JC, Luckman SP, Coxon FP, Benford HL, Monkkonen J, Auriola S, Chilton KM, Russell RG. Molecular mechanisms of action of bisphosphonates. Bone. 1999 May;24(5 Suppl):73S-79S. doi: 10.1016/s8756-3282(99)00070-8. No abstract available.
- Background: PubMed 18775204Drake MT, Clarke BL, Khosla S. Bisphosphonates: mechanism of action and role in clinical practice. Mayo Clin Proc. 2008 Sep;83(9):1032-45. doi: 10.4065/83.9.1032.
- Background: PubMed 16564235Kanzaki S, Ito M, Takada Y, Ogawa K, Matsuo K. Resorption of auditory ossicles and hearing loss in mice lacking osteoprotegerin. Bone. 2006 Aug;39(2):414-9. doi: 10.1016/j.bone.2006.01.155. Epub 2006 Mar 24.
- Background: PubMed 22935809Quesnel AM, Seton M, Merchant SN, Halpin C, McKenna MJ. Third-generation bisphosphonates for treatment of sensorineural hearing loss in otosclerosis. Otol Neurotol. 2012 Oct;33(8):1308-14. doi: 10.1097/MAO.0b013e318268d1b3.
- Background: PubMed 27153329Kang WS, Nguyen K, McKenna CE, Sewell WF, McKenna MJ, Jung DH. Measurement of Ototoxicity Following Intracochlear Bisphosphonate Delivery. Otol Neurotol. 2016 Jul;37(6):621-6. doi: 10.1097/MAO.0000000000001042.
- 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.
Erin Carter, MS, CGC contact
Cathleen Raggio, MD principal investigator
Hospital for Special Surgery, New York
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 Risedronate Oral Tablet in people with Osteogenesis Imperfecta, run by Hospital for Special Surgery, New York 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 11 inclusion and 2 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: looking for participants now, as of the sponsor's last update on 28 Apr 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Su Htwe ((212)774-2355, htwes@hss.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Pure Tone Averages (time frame: Baseline, 3, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 months). 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 NCT04152551, which also lists 14 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 28 Apr 2026.