Safety of Fresolimumab in the Treatment of Osteogenesis Imperfecta
Osteogenesis Imperfecta
About this trial
This is an interventional treatment trial for Osteogenesis Imperfecta
Eligibility Criteria
Inclusion Criteria:
- Willing and able to provide signed informed consent.
- Are 18 years or older
- Have a diagnosis of moderate-to-severe OI based on various clinical features
- Have genetic mutations that include glycine substitution in COL1A1 or COL1A2, or pathogenic variants in CRTAP, PPIB, or LEPRE1 (if genetic information is unavailable at screening, this may be assessed at screening visit on a clinical or research basis).
- Females of child-bearing potential must have a negative urine pregnancy test, agree to and have the ability to use acceptable birth control method for entire duration of the study.
- For Males enrolled in the study, partners must agree to use an acceptable form of birth control for the entire duration of the study.
Exclusion Criteria:
- Fracture less than 3 months prior to the screening visit.
- Rodding or instruments that prevents reliable bone mineral density (BMD) assessment.
- Have a known unhealed fracture involving a long bone.
- Do not meet laboratory safety requirements such as: Vitamin D < 15 ng/dL Serum albumin-corrected calcium levels below 8 mg/dL, Hemoglobin < 10 g/dL, Platelet count < 75,000mm3;, Prothrombin time/(PT/INR) international normalized ratio > 1.5 times Upper Limit of Normal (ULN), Clinical or laboratory abnormality of Grade III or higher as assessed by CTCAE v4.0 which in the view of investigator would compromise safety.
- Have an EKG with QTc of > 450 ms
- Have a known allergy to fresolimumab.
- Have current clinically significant infection.
- Have a personal history of basal cell carcinoma, squamous cell carcinoma or keratoacanthomas, a personal history of cancer, recent or remote.
- Have evidence of untreated cavities or planned invasive dental work during the study period.
- Have had organ transplantation.
- Have known or suspected valvular heart disease.
- Plan to have skeletal surgery in the study period.
- Have had osteotomy 5 months prior to the screening visit.
- Being treated with zoledronic acid or pamidronate less than 12 months of screening OR oral bisphosphonates less than 6 months of screening OR teriparatide less than one year of screening.
- Being treated with systemic glucocorticoids
- Have autoimmune diseases being treated with glucocorticoids or other biologic agents.
- Enrolled in another clinical trial and receiving treatment with another investigational agent
- Pregnant or planning to get pregnant during the study period.
- Nursing mothers.
Sites / Locations
- Oregon Health Science University
- Baylor College of Medicine
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Experimental
Experimental
Experimental
Experimental
Stage 1 Low dose
Stage 2 High dose
Stage 2 Repeat dose every 6 months
Stage 2 Repeat doses every 3 months
There are a total of 6 study visits within approximately a 6 month timespan. Investigators will evaluate the safety of a single administration of fresolimumab in adult patients with OI. Subjects will receive a single-dose of 1 mg/kg of fresolimumab (n=4). At each study visit, the participant may have the following testing done: Physical exam Vitals Blood draw for safety labs, pharmacokinetics, etc If the participant is female, she will have a pregnancy test EKG DXA Infusion of the study drug
There are a total of 6 study visits within approximately a 6 month timespan. Investigators will evaluate the safety of a single administration of fresolimumab in adult patients with OI. Subjects will receive a single-dose of 4 mg/kg of fresolimumab (n=4). At each study visit, the participant may have the following testing done: Physical exam Vitals Blood draw for safety labs, pharmacokinetics, etc If the participant is female, she will have a pregnancy test EKG DXA Infusion of the study drug
Fresolimumab will be administered every six months for a total treatment period of 12 months (n=4). The dose to be administered (1 or 4 mg/kg) will be chosen after completion of Stage 1. The primary Stage 2 endpoint will be safety measures assessed over 12 months. The secondary endpoints will be changes in markers of bone remodeling, bone mineral density, estimated strength. At each study visit, participants may have the following testing done: Physical exam Vitals Blood draw for safety labs, pharmacokinetics, etc If the participant is female, she will have a pregnancy test EKG DXA Infusion of the study drug Skeletal survey Peripheral quantitative CT (pQCT) of the forearm Quality of Life Surveys Pulmonary function test Walk test
Fresolimumab will be administered every three months for a total treatment period of 12 months (n=4). The dose to be administered (1 or 4 mg/kg) will be chosen after completion of Stage 1. The primary Stage 2 endpoint will be safety measures assessed over 12 months. The secondary endpoints will be changes in markers of bone remodeling, bone mineral density, estimated strength. At each study visit, participants may have the following testing done: Physical exam Vitals Blood draw for safety labs, pharmacokinetics, etc If the participant is female, she will have a pregnancy test EKG DXA Infusion of the study drug Skeletal survey Peripheral quantitative CT (pQCT) of the forearm Quality of Life Surveys Pulmonary function test Walk test