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Monoclonal Antibodies

Burosumab for Osteoporosis Hypophosphatemia Syndrome

Phase < 1
Waitlist Available
Led By Laura Tosi, MD
Research Sponsored by Laura Tosi
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Timeline
Screening 3 weeks
Treatment Varies
Follow Up 52 weeks
Awards & highlights

Study Summary

This trial is testing whether the drug burosumab can help patients with Cutaneous Skeletal Hypophosphatemia Syndrome by reducing the levels of a protein called fibroblast growth factor 23.

Eligible Conditions
  • Osteoporosis Hypophosphatemia Syndrome (OHS)
  • Epidermal Nevus Syndrome

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~52 weeks
This trial's timeline: 3 weeks for screening, Varies for treatment, and 52 weeks for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Serum Phosphorus change
Secondary outcome measures
6-minute walk test
Biomechanical Marker
Brief Fatigue Inventory (BFI)
+10 more

Side effects data

From 2021 Phase 2 trial • 17 Patients • NCT02304367
64%
Pain In Extremity
64%
Arthralgia
50%
Upper Respiratory Tract Infection
50%
Cough
43%
Diarrhoea
36%
Nausea
36%
Vomiting
36%
Nasopharyngitis
36%
Back Pain
36%
Muscle Spasms
29%
Hypertension
29%
Insomnia
29%
Constipation
29%
Neoplasm Progression
29%
Urinary Tract Infection
29%
Musculoskeletal Pain
29%
Pain
29%
Fall
29%
Myalgia
29%
Amylase Increased
21%
Abdominal Pain
21%
Influenza
21%
Procedural Pain
21%
Contusion
21%
Ligament Sprain
21%
Pulmonary Mass
21%
Hypomagnesaemia
21%
Oropharyngeal Pain
21%
Nasal Congestion
21%
Rash
21%
Musculoskeletal Chest Pain
21%
Restless Legs Syndrome
21%
Oedema Peripheral
21%
Vitamin D Deficiency
21%
Joint Range Of Motion Decreased
21%
Fatigue
21%
Respiratory Tract Congestion
21%
Bronchitis
14%
Injection Site Reaction
14%
Abdominal Pain Lower
14%
Lipase Increased
14%
Cardiac Arrest
14%
Creatinine Renal Clearance Decreased
14%
Hyperphosphataemia
14%
Foot Fracture
14%
Upper Respiratory Tract Congestion
14%
Asthenia
14%
Acute Respiratory Failure
14%
Hypokalaemia
14%
Hypotension
14%
Hyperglycaemia
14%
Hypocalcaemia
14%
Dyspnoea
14%
Anxiety
14%
Pyrexia
14%
Anaemia
14%
Tinnitus
14%
Toothache
14%
Decreased Appetite
14%
Bone Lesion
14%
Bone Pain
14%
Nephrolithiasis
14%
Tooth Fracture
14%
Depression
14%
Chills
14%
Exostosis
14%
Neck Pain
14%
Dizziness
14%
Headache
14%
Acute Kidney Injury
14%
Abdominal Discomfort
14%
Abdominal Distension
14%
Rib Fracture
14%
Joint Swelling
7%
Blood Creatine Increased
7%
Thyroid Neoplasm
7%
Testicular Mass
7%
Skin Lesion
7%
Computerised Tomogram Abdomen Abnormal
7%
Hyponatraemia
7%
Intervertebral Disc Annular Tear
7%
Cholangitis
7%
Coagulopathy
7%
Metabolic Acidosis
7%
Multi-Organ Failure
7%
Pickwickian Syndrome
7%
Blood Glucose Increased
7%
Nodule
7%
Cystitis
7%
Metastases To Lung
7%
Hepatic Lesion
7%
Flank Pain
7%
Hydronephrosis
7%
Skin Irritation
7%
Liver Function Test Abnormal
7%
Rash Papular
7%
Melanocytic Naevus
7%
Application Site Rash
7%
Injection Site Bruising
7%
Gout
7%
Electrocardiogram Qt Prolonged
7%
Electrocardiogram Abnormal
7%
Hypoproteinaemia
7%
Hip Fracture
7%
Tooth Injury
7%
Clonus
7%
Viith Nerve Paralysis
7%
H1n1 Influenza
7%
Oxygen Saturation Decreased
7%
Hypercalcaemia
7%
Injection Site Swelling
7%
Medical Device Site Reaction
7%
Tumour Compression
7%
Diverticulitis
7%
Rheumatoid Arthritis
7%
Pulseless Electrical Activity
7%
Sialoadenitis
7%
Blood Creatinine Increased
7%
Waist Circumference Increased
7%
Hypoalbuminaemia
7%
Sensory Disturbance
7%
Panic Attack
7%
Micturition Urgency
7%
Precancerous Skin Lesion
7%
Deep Vein Thrombosis
7%
Abdominal Pain Upper
7%
Squamous Cell Carcinoma Of Skin
7%
Metastases To Pancreas
7%
Prostatomegaly
7%
Blood Cholesterol Increased
7%
Haemothorax
7%
Glycosylated Haemoglobin Increased
7%
Haematuria
7%
Pulmonary Artery Dilatation
7%
Hyperuricaemia
7%
Decubitus Ulcer
7%
Hypophosphataemia
7%
Joint Stiffness
7%
Agitation
7%
Keloid Scar
7%
Peripheral Venous Disease
7%
Nephrocalcinosis
7%
Vasodilatation
7%
Skin Mass
7%
Basal Cell Carcinoma
7%
Actinic Keratosis
7%
Cerebral Cyst
7%
Sleep Talking
7%
Skin Odour Abnormal
7%
Urinary Incontinence
7%
Pulmonary Embolism
7%
Renal Impairment
7%
Concussion
7%
Muscle Mass
7%
Vaginal Haemorrhage
7%
Echocardiogram Abnormal
7%
Eyelid Ptosis
7%
Ascites
7%
Bile Duct Stone
7%
Hepatic Cyst
7%
Poor Quality Sleep
7%
Ovarian Cancer
7%
Leukocytosis
7%
Bradycardia
7%
Tachycardia
7%
Abdominal Mass
7%
Dysphagia
7%
Flatulence
7%
Gastrooesophageal Reflux Disease
7%
Hypoaesthesia Oral
7%
Large Intestine Polyp
7%
Localised Intraabdominal Fluid Collection
7%
Poor Dental Condition
7%
Retching
7%
Stomatitis
7%
Calcinosis
7%
Chest Pain
7%
Generalised Oedema
7%
Seasonal Allergy
7%
Oesophageal Candidiasis
7%
Oral Candidiasis
7%
Pneumonia
7%
Sinusitis
7%
Tooth Abscess
7%
Viral Upper Respiratory Tract Infection
7%
Ligament Rupture
7%
Blood Calcium Increased
7%
Blood Parathyroid Hormone Increased
7%
Blood Potassium Decreased
7%
Blood Pressure Systolic Increased
7%
Blood Sodium Decreased
7%
Blood Uric Acid Increased
7%
White Blood Cell Count Decreased
7%
Aneurysmal Bone Cyst
7%
Bursitis
7%
Osteosclerosis
7%
Neuroma
7%
Pollakiuria
7%
Proteinuria
7%
Renal Cyst
7%
Dental Caries
7%
Road Traffic Accident
7%
Calculus Bladder
7%
Pancreatic Carcinoma Metastatic
7%
Pleural Effusion
7%
Pancreatitis
7%
Dyspepsia
7%
Gait Disturbance
7%
Peripheral Swelling
7%
Gastrointestinal Infection
7%
Gastrointestinal Viral Infection
7%
Laceration
7%
Post Procedural Haematoma
7%
Scar
7%
Skin Abrasion
7%
Spinal Compression Fracture
7%
Stress Fracture
7%
Tibia Fracture
7%
Ultrasound Kidney Abnormal
7%
Hypercholesterolaemia
7%
Soft Tissue Mass
7%
Tendon Pain
7%
Schwannoma
7%
Squamous Cell Carcinoma
7%
Dysgeusia
7%
Hypoaesthesia
7%
Sciatica
7%
Vulva Cyst
7%
Respiratory Acidosis
7%
Pruritus
7%
Septic Shock
7%
Abdominal Hernia
7%
Injection Site Pain
7%
Conjunctivitis
7%
Corona Virus Infection
7%
Femur Fracture
7%
Fibula Fracture
7%
Radiation Mucositis
7%
Musculoskeletal Stiffness
7%
Migraine
7%
Neuralgia
7%
Paraesthesia
7%
Chylothorax
7%
Prostatic Specific Antigen Increased
100%
80%
60%
40%
20%
0%
Study treatment Arm
KRN23 TIO
KRN23 XLH and ENS

Trial Design

1Treatment groups
Experimental Treatment
Group I: BurosumabExperimental Treatment1 Intervention
Burosumab, which is FDA-approved for X-linked hypophosphatemic rickets, will be given monthly, for a total of 12 months and titrated to achieve a target fasting serum phosphorus level within normal range for age. The chosen starting dose of burosumab will be 0.3 mg/kg given SQ Q4W. The maximum dose allowed in this protocol is 2.0 mg/kg. Burosumab will be administered via subcutaneous (SC) route.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Burosumab
2021
Completed Phase 3
~110

Find a Location

Who is running the clinical trial?

Ultragenyx Pharmaceutical IncIndustry Sponsor
89 Previous Clinical Trials
179,073 Total Patients Enrolled
Laura TosiLead Sponsor
Children's National Research InstituteOTHER
210 Previous Clinical Trials
207,756 Total Patients Enrolled

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

Is it still feasible to enroll in this investigation?

"At this moment, no new participants are being sought for the trial. It was initially posted on July 1st 2019 and its last update occurred on March 4th 2022. For those who are searching for alternative studies, there are presently 1404 trials enrolling patients with hypophosphatemia and four clinical trials looking to recruit people prescribed Burosumab."

Answered by AI

What is the maximum number of participants accepted for this clinical experiment?

"At this moment, the trial is not actively enrolling participants. It was initially advertised on July 1st 2019 and last updated on March 4th 2022. If you are in search of other trials related to hypophosphatemia, 1404 studies are currently seeking patients; for Burosumab there are four active medical studies recruiting volunteers."

Answered by AI

Has this sort of research been conducted before?

"Burosumab is currently the subject of 4 live trials, spanning 8 different countries and 1 city. First tested in 2019, this drug has since been through 18 studies conducted by Ultragenyx Pharmaceutical Inc., with its initial Phase < 1 clinical trial involving a single patient as part of their drug approval process."

Answered by AI
~0 spots leftby Apr 2025