Graves' Disease
Conditions
Brief summary
This study is the first time that K1-70 will be administered to humans. The principal aim of this study is to obtain safety and tolerability data when K1-70 is administered as an IM injection or as an IV infusion to subjects with Graves' disease. Current therapy for Graves' disease includes treatment with anti-thyroid drugs, destruction of the thyroid using radioiodine, or total surgical thyroidectomy. Beta-blockers and calcium antagonists may be used to control some of the symptoms of hyperthyroidism. K1-70 is a thyroid stimulating hormone receptor antagonist that may provide new in vivo diagnostic and therapeutic tools for the management of patients with Graves' disease, patients with thyroid cancer and patients who would benefit from controlling receptor activity.
Detailed description
Graves' disease is one of the most common overt autoimmune disorders. Patients with Graves' disease have thyroid over activity and hyperthyroidism. Symptoms of hyperthyroidism include goitre, fatigue, heat intolerance, sweating, weight loss despite good appetite, shakiness, inappropriate anxiety, palpitations of the heart, shortness of breath, tetchiness and agitation, poor sleep, thirst, nausea and increased frequency of defaecation. The rationale of this study is to obtain safety and tolerability data when K1-70 is administered as an intramuscular injection or as an IV infusion to subjects with Graves' disease. This information, together with the pharmacokinetic data, will help establish the doses and dosage regimen suitable for repeat administration to patients. This is an open-label study. The expected duration of each subject's participation in the study is approximately 18 weeks (including a screening period of up to 4 weeks).
Interventions
DRUGK1-70 intramuscular or K1-70 intravenous
Each subject will receive one dose of K1-70 by IM injection or one dose of K1-70 by IV infusion on the morning of Day 1.
Sponsors
AV7 Limited
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No
Inclusion criteria
Main Inclusion Criteria: * age 18-75 years * have Graves' disease and are being treated with anti-thyroid medications OR not treated with anti-thyroid medications (due to side-effects) and who are clinically and biochemically euthyroid or hyperthyroid * have a body mass index (weight \[kg\]/height \[m\]2) between 18.5 and 35.0 kg/m2 Main
Exclusion criteria
* current or chronic history of liver disease * history of cancer within the last 5 years except localised skin cancer * Graves' orbitopathy with clinical activity score \>3/7 * evidence of optic neuropathy and/or corneal breakdown * significant systemic infection * history of recurrent or current infection * splenectomy * recently had major surgery or plan major surgery * had thromboembolic event due to a blood clot in the last 12 months * have clinically significant laboratory tests * a clinically significant allergic condition (excluding hay fever) * currently receiving corticosteroids * smoke more than 10 cigarettes (or its equivalent in nicotine (including use of e-cigarettes)) per day * history of drug abuse
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Safety and tolerability will be measured using vital signs, ECG, blood samples for haematology, coagulation, clinical biochemistry and hormone panel, urinalysis, eye examinations, physical examinations and examination of injection or infusion site. | Over a period of 18 weeks | Safety and tolerability testing consists of vital signs, ECG, blood samples for haematology, coagulation, clinical biochemistry and hormone panel, urine samples for urinalysis, eye examinations, physical examinations and examination of injection or infusion site. All clinically significant results and the number of treatment related adverse events will be reported. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| The concentration of K1-70 drug in the blood will be measured over time. | Over a period of 18 weeks | The terminal elimination rate constant will be calculated and reported |
| The antidrug antibodies will be measured to evaluate the immunogenic potential of K1-70 in Graves' disease patients | Over a period of 18 weeks | The level of antidrug antibodies present in the patient serum will be measured over time and reported. |
| The effect of a single IM dose or single IV dose of K1-70 on thyroid activity in subjects with Graves' will be measured over time | Over a period of 18 weeks | TSH levels will be measured and reported over time. |
Other
| Measure | Time frame | Description |
|---|---|---|
| Exploratory Objective: Thyroid hormones will be measured over time and their correlation to baseline TSH receptor autoantibody (TRAb) levels will be reported at different time points | Over a period of 18 weeks | TSH levels will be reported against baseline TRAb over time. |
| Exploratory Objective: The potential effect of K1-70 on Graves' ophthalmopathy will be measured by eye examinations using the Clinical Activity Score (CAS) system. | Over a period of 18 weeks | All clinically significant results and the number of treatment related adverse events will be reported. |
Countries
United Kingdom
Outcome results
None listed