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Completed

NCT Number: NCT05529992

A Study of Velaglucerase Alfa (VPRIV) in Chinese Children, Teenagers, and Adults With Type 1 Gaucher Disease

The main purpose of this study is to observe the side effects of VPRIV in participants with type 1 Gaucher disease who are either treatment-naïve (newly diagnosed) or who are currently being treated with enzyme replacement therapy (ERT).

Participants will receive VPRIV intravenously during the treatment period (up to 51 weeks), followed by the end-of-treatment (EOT) visit after 2 weeks.

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Key information

About this study

The drug being tested in this study is called Velaglucerase Alfa (VPRIV). VPRIV will be tested to treat participants with type 1 Gaucher disease. This study will look at the safety, efficacy and pharmacokinetics of VPRIV in the treatment of type 1 Gaucher disease.

The study will enroll approximately 20 participants with Gaucher disease. The study comprises a screening period (Day -21 through Day -4), baseline period (Day -3 through Day 0), treatment period (Week 1 to Week 51), and safety follow-up period. Participants will be assigned to the following drug administration:

  • Velaglucerase Alfa (VPRIV)

Participants will receive VPRIV as intravenous (IV) infusion every other week from Week 1 through Week 51 during the Treatment Period. Percentage of participants with at least one serious treatment-emergent adverse event (TEAE) will be evaluated throughout the study.

This multi-center trial will be conducted in China. The overall time to participate in this study is approximately 59 weeks. Participants will make a safety follow-up telephone call or visit to the site after 30 (±7) days of the last infusion of the study drug.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion:

  • Has a documented, confirmed diagnosis of type 1 Gaucher disease based on the following, as determined by the investigator:
  • Decreased glucocerebrosidase (GCB) activity level that is ≤30% of normal or
  • Decreased GCB activity level that is >30% of normal, but with confirmation of genetic mutation test
  • Is at least 2 years of age, inclusive, at screening
  • Is naive to treatment for Gaucher disease (Has not received treatment for Gaucher disease [investigational or approved products] within the 12 months prior to screening) OR Is receiving or has recently received Imiglucerase ERT (Has received Imiglucerase treatment within the 12 months prior to screening and not within the 14 days prior to screening)
  • Has Gaucher disease-related hematological abnormalities, defined as
  • Hemoglobin levels of ≥1 g/dL below the lower limit of normal for their age and gender AND/OR
  • A platelet count of <90 × 10^9/L below the lower limit of normal for their age and gender
  • Has Gaucher disease-related viscera abnormalities, defined as the following:
  • Participant has at least moderate splenomegaly, assessed by palpation (2 to 3 cm below the left costal margin), or by abdominal radiology scan (magnetic resonance imaging [MRI] or computed tomography [CT] scan, with spleen volume >5 times normal) AND/OR
  • Participant has hepatomegaly, assessed by palpation or by abdominal radiology scan (MRI or CT scan); Participants who have undergone splenectomy must have satisfied these criteria for this study.

Exclusion:

  • Has type 2 or 3 Gaucher disease or is suspected of having type 3 Gaucher disease as assessed by the investigator
  • Has had a splenectomy or an active, clinically significant spleen infarction within the 12 months prior to screening
  • Has received treatment with any investigational drug or device within 30 days prior to screening, or within 5 half-lives of that investigational product, whichever is greater; such treatment during the study will not be permitted
  • Is currently receiving red blood cell growth factor (eg, erythropoietin), chronic systemic corticosteroids, or has been on such treatment within the 6 months prior to screening
  • Presents with non-Gaucher disease related exacerbated anemia at screening
  • Has experienced a severe (grade 3 or higher) infusion-related hypersensitivity reaction (anaphylactic or anaphylactoid reaction) to any ERT (approved or investigational)

Treatment and study plan

Velaglucerase alfa

Drug

VPRIV intravenous infusion every other week for 60 minutes.

Other names: VPRIV

Primary outcomes

  1. Percentage of Participants With at Least One Serious Treatment-Emergent Adverse Event (TEAE)

    Time frame: Up to 56.2 weeks

    Adverse event(AE)=any untoward medical occurrence in clinical investigation participant administered a drug;it does not necessarily have to have causal relationship with this treatment. AE can therefore be any unfavorable&unintended sign (example,clinically significant abnormal laboratory value),symptom/disease temporally associated with use of drug whether or not it is considered related to drug. TEAE=any event emerging or manifesting at or after initiation of investigational product or any existing event that worsens in either intensity or frequency following exposure to investigational product. SAE=any untoward clinical manifestation of signs, symptoms, or outcomes(whether considered related to investigational product or not)&at any dose: results in death,is life-threatening,requires in-patient hospitalization/prolongation of hospitalization,results in persistent/significant disability/incapacity,results in congenital abnormality/birth defect,or is an important medical event.

Secondary outcomes

  1. Percentage of Participants With TEAEs

    Time frame: Up to 56.2 weeks

    An AE is defined as any untoward medical occurrence in a clinical investigation participant administered a drug; it does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (example, a clinically significant abnormal laboratory value), symptom, or disease temporally associated with the use of a drug whether or not it is considered related to the drug. A TEAE is defined as any event emerging or manifesting at or after the initiation of the investigational product or any existing event that worsens in either intensity or frequency following exposure to the investigational product.

  2. Percentage of Participants With Infusion-related Reactions Reported as an Adverse Event

    Time frame: Up to 56.2 weeks

    An AE is defined as any untoward medical occurrence in a clinical investigation participant administered a drug; it does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (example, a clinically significant abnormal laboratory value), symptom, or disease temporally associated with the use of a drug whether or not it is considered related to the drug. An infusion-related AE was defined as an AE that 1) began either during or within 12 hours after the start of the infusion and 2) was judged as possibly or probably related to the study treatment.

  3. Percentage of Participants With Development of Anti-VPRIV Antibodies and Neutralizing Antibodies at Week 53

    Time frame: Week 53

    Percentages were rounded off to the nearest single decimal place.

  4. Number of Participants With Clinically Significant Changes in Laboratory Assessments at Week 53

    Time frame: Week 53

    Clinical laboratory assessments included hematology and serum chemistry. Any clinically significant changes in the clinical laboratory assessment values based on the investigator's interpretation were reported. Only categories with at least one participant with event are presented.

  5. Number of Participants With Abnormal Changes in Laboratory Assessments at Week 53: Urinalysis

    Time frame: Week 53

    Any abnormal changes in the urinalysis assessment values based on the investigator's interpretation were reported. Urinalysis comprised of the following parameters: bilirubin, ketones, glucose, nitrite, occult blood, protein, and urobilinogen.

  6. Number of Participants With at Least One Abnormal Change in an Infusion Vital Sign Parameter at Week 53

    Time frame: Week 53

    Participants with atleast 1 abnormal change (above or below normal) in an infusion vital sign parameter of pulse, temperature, respiratory rate,& blood pressure were reported. Normal ranges for each vital sign parameter were, pulse (beats per minutes [bpm]): 40-100(≥12 years old), 55-95(≥6 but <12 years old), 65-110(≥2 but <6 years old); body temperature(degree Celsius[˚C]): 36.5 to 37.2(all age groups),respiration rate(breaths/minutes):12-24(≥12 years old),12-22 (≥6 but <12 years old),20-30(≥2 but <6 years old);systolic blood pressure(BP) [millimeters of mercury{mm Hg}]: high: ≥140 (≥18 years old), ≥20+ 80+ 2*age(<18 years old), low: <90 (≥18 years old), < -20+ 80+ 2*age(<18 years old); diastolic BP(mm Hg):high:≥90 (≥18 years old), ≥20+ (80+2*age)*(2/3) (<18 years old) low: <50 (≥18 years old), < -20+ (80+2*age)*(2/3) (<18 years old). As per planned analysis,data was collected in a combined manner for all participants irrespective of age. Only non-zero categories are presented.

  7. Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) Measurements at Week 53

    Time frame: Week 53

    Participants with clinically significant changes in any ECG measurement, such as PR, QRS, QT, corrected QT intervals, and heart rate based on the investigator's interpretation were reported.

  8. Change From Baseline to Week 53 in Hemoglobin Concentration

    Time frame: Baseline, Week 53

  9. Change From Baseline to Week 53 in Platelet Count

    Time frame: Baseline, Week 53

  10. Change From Baseline to Week 53 in Normalized Liver Volume

    Time frame: Baseline, Week 53

    Normalized liver volume was measured by abdominal magnetic resonance imaging (MRI) or computed tomography (CT) scan. Liver volume was normalized for percent body weight.

  11. Change From Baseline to Week 53 in Normalized Spleen Volume

    Time frame: Baseline, Week 53

    Spleen volume was normalized for percent body weight.

  12. Change From Baseline to Week 53 in 36-item Short Form General Health Survey (SF-36) Scores

    Time frame: Baseline, Week 53

    SF-36 Version 2 is a multipurpose, participant completed, short-form health survey with 36 questions that consists of an 8-scale profile of functional health and well-being scores as well as psychometrically-based physical and mental health summary measures. Physical component summary (PCS) is mostly contributed by physical function (PF), role physical (RP), bodily pain (BP), and general health (GH). Mental component summary (MCS) is mostly contributed by mental health (MH), role emotional (RE), social function (SF), and vitality (VT). Each component on the SF-36 item health survey is scored from 0 (best) to 100 (worst). Total score ranges from 0-100 for each component summary (i.e., PCS and MCS), where higher scores are associated with less disability and better quality of life.

  13. Change From Baseline to Week 53 in Childhood Health Questionnaire-Parent Form 50 (CHQ-PF50) Scores

    Time frame: Baseline, Week 53

    The CHQ-PF-50 is a 50-item questionnaire to be completed by the parents or guardians of children between 5 and 18 years of age. The 50 questions measure 14 domains (global health, physical functioning, role/social limitations (emotional/behavioral and physical), bodily pain/discomfort, behavior, global behavior, mental health, self-esteem, general health perceptions, change in health, parental impact (emotional and time), family activities, and family cohesion) which were summarized as the physical and psychological summary scores. Each summary score was transformed and could range from 0 to 100, with higher score indicating better physical and psychosocial health. A positive change from Baseline indicates improved well-being.

  14. Cmax: Maximum Observed Serum Concentration for VPRIV at Week 1

    Time frame: Pre-dose and at multiple timepoints up to 120 minutes post-dose on Day 1 of Week 1

  15. Serum Concentration for VPRIV at Week 37

    Time frame: Within 3 minutes prior to the end of the 60-minute infusion at Week 37

  16. Tmax: Time to Reach the Maximum Serum Concentration (Cmax) for VPRIV

    Time frame: Pre-dose and at multiple timepoints up to 120 minutes post-dose on Day 1 of Week 1

  17. AUCinf: Area Under the Plasma Concentration-time Curve From Time 0 to Infinity for VPRIV

    Time frame: Pre-dose and at multiple timepoints up to 120 minutes post-dose on Day 1 of Week 1

    ng*min/mL denotes nanograms*minutes per milliliter.

  18. Terminal Phase Elimination Half-life (T1/2) for VPRIV

    Time frame: Pre-dose and at multiple timepoints up to 120 minutes post-dose on Day 1 of Week 1

  19. Oral Clearance (CL) for VPRIV

    Time frame: Pre-dose and at multiple timepoints up to 120 minutes post-dose on Day 1 of Week 1

    mL/min/kg denotes milliliters per minutes per kilogram.

  20. Apparent Steady-state Volume of Distribution (Vss) for VPRIV

    Time frame: Pre-dose and at multiple timepoints(up to 120 minutes post-dose on Day 1 of Week 1

  21. Percent Change From Baseline to Week 53 in Biomarker: Plasma Chemokine [C-C Motif] Ligand 18

    Time frame: Baseline, Week 53

  22. Percent Change From Baseline to Week 53 in Biomarker: Glucopsychosine

    Time frame: Baseline, Week 53

Sponsors and collaborators

Lead sponsor

Takeda

Industry

Registry information

Official study title

A Multicenter, Open-label Study to Evaluate the Safety, Efficacy, and Pharmacokinetics of Velaglucerase Alfa in Chinese Subjects With Type 1 Gaucher Disease

Important dates

Study start
2023
Primary completion
2024
Study completion
2024
First posted
Sep 7, 2022
Registry last updated
Jun 26, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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