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Thyroid Eye DiseasePhase 1NCT06467435

Evaluation of K9 in Subjects With Thyroid Eye Disease (TED)

A Phase 1 study testing Kamuvudine-9 in people with Thyroid Eye Disease, run by Peter Timoney at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The study is comprised of two cohorts. Cohort 1 will examine pharmacokinetics of K9 in 3 healthy volunteers over 24 hours. This cohort has been completed. Cohort 2 will involve up to 10 patients with TED. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Thyroid Eye Disease
What is being tested?
Kamuvudine-9
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
4 participants
Where
1 siteUnited States
Study dates
6 Nov 2024to 23 Feb 2026
Phase
Phase 1
Are there results?
None posted in the registry

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 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Cohort 1
  • Subject is willing and able to receive treatment and complete corresponding assessments as required by the protocol
  • Cohort 2
  • Diagnosed with Thyroid Eye Disease (TED).
  • Symptomatic TED diagnosed no more than 9 months earlier.
  • Clinical Activity Score ≥ 3 (on 7 point scale) for the worse eye.
  • Subject is willing and able to receive treatment and complete corresponding assessments as required by the protocol.

Who cannot join

  • Cohort 1
  • Body weight less than 55 kg.
  • History of any clinically significant medical disorders the principal investigator considers exclusionary, including (but not limited to), neuromuscular, hematological disease, immune deficiency state, respiratory disease, hepatic or gastrointestinal disease, neurological or psychiatric disease, ophthalmological disorders, neoplastic disease, renal or urinary tract diseases, or dermatological disease.
  • Females who are pregnant, nursing, planning a pregnancy or who are of childbearing potential not using a reliable method of contraception.
  • History or current evidence of hypersensitivity to any components of the study medication, as assessed by the investigator.
  • Participation in any systemic experimental treatment or any other systemic investigational new drug within 6 weeks or 5 half-lives of the active ingredient (whichever is longer) prior to the start of study treatment. Clinical trials solely involving observation, over-the-counter vitamins, supplements, or diets are not exclusionary
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  • Cohort 2
  • Body weight less than 55 kg.
  • Females who are pregnant, nursing, planning a pregnancy or who are of childbearing potential not using a reliable method of contraception.
  • History or current evidence of hypersensitivity to any components of the study medication, as assessed by the investigator.
  • Participation in any investigational drug or ocular device study within 30 days prior to the Day 1 Study Visit.
  • History or current evidence of a medical condition that may, in the opinion of the investigator, preclude the safe administration of study medication or affect the results of the study.
  • Participation in any systemic experimental treatment or any other systemic investigational new drug within 5 half-lives of the active ingredient prior to the start of study treatment. Clinical trials solely involving observation, over-the-counter vitamins, supplements, or diets are not exclusionary.
  • History of use of teprotumumab (Tepezza), radiotherapy, or orbital surgery.
  • History (last 6 weeks) of use of systemic immunosuppressants (e.g. mycophenolate), intravenous immunoglobulin, or plasmapheresis.
  • Clinical activity score < 3
  • Uncontrolled diabetes or hypertension
  • History of mental / psychiatric disorder
  • Hepatic dysfunction (Albumin (Alb), Aspartate Aminotransferase (AST), Alanine Aminotransferase (ALT) and Alkaline phosphates levels must be within normal range for eligibility)
  • Renal impairment (Urea, Creatinine, and Glomerular Filtration Rate levels must be within normal range)
  • Any baseline condition that the principal investigator considers exclusionary.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Kentucky

    Lexington, Kentucky, 40506

Other trials in United States

About this study

The study is comprised of two cohorts. Cohort 1 will examine pharmacokinetics of K9 in 3 healthy volunteers over 24 hours. This cohort has been completed. Cohort 2 will involve up to 10 patients with TED. Patients will receive oral K9 BID for up to 24 weeks and will be followed up to a total of 26 weeks with a primary endpoint of safety.

Being tested
Kamuvudine-9
Keywords
Kamuvudine-9, K9
Medical subject headings
Graves Ophthalmopathy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Kamuvudine-9Drug

    Also called K9

    96 mg tablets taken twice a day for 24 weeks

  • Kamuvudine-9Drug

    Also called K9

    96 mg tablets taken once

Study groups in NCT06467435
Study groupRoleWhat they receive
Patients with Thyroid Eye Disease (TED)ExperimentalParticipants receive a regimen of 96 mg tablets of K9 twice a day for 24 weeks
Receives: Drug: Kamuvudine-9
Healthy VolunteersExperimentalParticipants receive one dose of 96 mg tablets of K9 based on weight
Receives: Drug: Kamuvudine-9

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Adverse Events

    Frequency of participants experiencing ocular or systemic adverse events.

    Measured: 26 weeks

  2. plasma concentrations of K9

    plasma concentrations measured after a single oral dose in healthy adults. For each of these time points 5 ml of blood will be drawn.

    Measured: Pharmacokinetic samples collected pre-dose and at 0.5, 1, 2, 3, 4, 6, 8, and 24 hours after dosing

Secondary outcomes (8)
  1. Change in Standardized Patient Evaluation of Eye Dryness (SPEED) symptoms

    The SPEED Questionnaire will be used to track progression of dry eye symptoms. The SPEED questionnaire has eight questions. The frequency and severity of symptoms are rated on a numeric scale. Scores range from 0 to 28 with higher scores equating to more symptoms.

    Measured: Screening (Baseline), and Weeks 4, 14, and 24

  2. Change in Diplopia

    Diplopia is assessed by the Bahn-Gorman Scale. The Bahn-Gorman scale is a subjective grading scheme that uses a scale of 0-3 to assess the severity of diplopia. A higher score equates to more severe diplopia.

    Measured: Screening (Baseline), Day 1 Visit, and weeks 4, 14, and 24

  3. Change in Study Visit in Clinical Activity Score (CAS),

    Clinical Activity Score (7 point scale) with higher score equating to more symptoms

    Measured: Screening (Baseline), Day 1 Visit, and weeks 4, 14, and 24

  4. Change in proptosis

    Hertel exophthalmometry will be used to measure the globe position of the eye by calculating the distance from the lateral orbital rim to the surface of the cornea in millimeters (mm)

    Measured: Screening (Baseline), Day 1 Visit, and weeks 4, 14, and 24

  5. Change in Graves' ophthalmopathy-specific quality-of-life scale (GO-QOL)

    The GO-QOL is a self-administered health-related QOL questionnaire specifically designed and validated in patients with TED. It includes 2 subscale GO-QOL scores: (1) visual functioning and (2) appearance-related, with the 2 weighted equally to create an overall score. Both the subscales and overall score are transformed to a scale of 0 to 100, 0 indicating worst health and 100 indicating best health.

    Measured: Screening (Baseline) and weeks 4, 14, and 24

  6. Change in upper eyelid retraction

    upper eyelid retraction will be determined by measuring the margin reflex distance (MRD1) in millimeters. The MRD1 is the measurement in millimetres from the light reflex on the patient's cornea to the level of the centre of the upper eyelid margin, with the patient gazing in the primary position.

    Measured: Screening (Baseline), Day 1 Visit, and weeks 4, 14, and 24

  7. Change in lower eyelid retraction

    Lower eyelid retraction is measured by the distance from the inferior limbus to the lower eyelid, or by the margin reflex distance 2 (MRD2). The distance between the corneal light reflex to the central portion of the lower eyelid is measured in millimeters

    Measured: Screening (Baseline), Day 1 Visit, and weeks 4, 14, and 24

  8. Change in cell-based functional assays

    measured by ELISA

    Measured: Screening (Baseline), Day 1 Visit, and weeks 4,14, and 24

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Jun 2024
  2. Study start6 Nov 2024
  3. Primary completion23 Feb 2026
  4. Study completion23 Feb 2026

Why it stopped: Low enrollment status

Resources

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 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
4 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06467435
Sponsor's protocol ID
94519
Status last verified
Mar 2026
First submitted
14 Jun 2024
Last updated
1 Apr 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Kamuvudine-9 in people with Thyroid Eye Disease, run by Peter Timoney 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 7 inclusion and 21 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 1 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Low enrollment status). Results are not available in the source record.

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?

Adverse Events (time frame: 26 weeks). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 1 Apr 2026.

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