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Safety Study for Beta Thalassemia Subjects on PTG-300 (TRANSCEND)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT04054921
Recruitment Status : Completed
First Posted : August 13, 2019
Last Update Posted : July 16, 2021
Information provided by (Responsible Party):
Protagonist Therapeutics, Inc.

Brief Summary:
In this study will investigate long term safety and use of the PTG-300 in Beta Thalassemia patients.

Condition or disease Intervention/treatment Phase
β-thalassemia Ineffective Erythropoiesis Drug: PTG-300 Phase 2

Detailed Description:
The PTG-300-03 study will study beta thalassemia patients on PTG-300 for two years. The dose and dose frequency for each subject enrolling in the PTG-300-03 study will be based on the last dose and frequency received by the subject in the previous study PTG-300-02 and the subject's response at that dose. Patients dose will be increased in a manner similar to that used on PTG-300-02 study. The maximum PTG-300 dose allowed is 80 mg/week.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 34 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An Open Label Extension Study of PTG-300 In Non-Transfusion Depenent (NTD) and Trasfusion-Dependent (TD) B-Thalassemia Subjects
Actual Study Start Date : May 10, 2019
Actual Primary Completion Date : July 31, 2020
Actual Study Completion Date : July 31, 2020

Arm Intervention/treatment
Experimental: Interventions
Drug: PTG-300
PTG-300 is a hepcidin Mimetic

Primary Outcome Measures :
  1. Proportion of subjects with side effects and severity of side effects will be tabulated [ Time Frame: Over two year Period after receiving PTG-300 ]
    the long-term safety and tolerability of PTG-300 in Beta Thalassemia.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   12 Years to 65 Years   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • NTD and TD β-thalassemia subjects who completed Week 12 and Week 16 respectively in Study PTG-300-02.

Exclusion Criteria:

  • Subjects who discontinued prematurely from study 300-02 (before Week 12 in NTD and Week 16 in TD).

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT04054921

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United States, California
UCSF Benioff Children's Hospital
Oakland, California, United States, 94609
United States, Massachusetts
Boston Children's Hospital
Boston, Massachusetts, United States, 02215
Laiko General Hospital of Athens
Athens, Greece, 11526
Athens General Hospital 'G Gennimatas'
Athens, Greece, 11527
University General Hospital of Patras
Patras, Greece, 26500
Chronic Care Center
Hazmiyeh, Lebanon
Hospital Ampang
Ampang, Malaysia, 68000
Hospital Umum Sarawak
Kuching, Malaysia, 93586
Siriraj Hospital Mahidol University
Bangkok, Thailand, 10700
Khon Kaen University
Khon Kaen, Thailand, 40002
Chulalongkorn University
Pathum Wan, Thailand, 10330
Naresuan University
Phitsanulok, Thailand, 65000
University Hospital Farhat Hached
Sousse, Tunisia, 4000
Istanbul Universitesi Istanbul Tip Fakultesi Hastanesi
Istanbul, Turkey, 34093
Ege Universitesi Tip Fakultesi
Izmir, Turkey, 35100
United Kingdom
Barts Health NHS Trust
London, United Kingdom, E1 1BB
Sponsors and Collaborators
Protagonist Therapeutics, Inc.
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Responsible Party: Protagonist Therapeutics, Inc. Identifier: NCT04054921    
Other Study ID Numbers: PTG-300-03
First Posted: August 13, 2019    Key Record Dates
Last Update Posted: July 16, 2021
Last Verified: February 2021
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Protagonist Therapeutics, Inc.:
Chronic anemia
Additional relevant MeSH terms:
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Anemia, Hemolytic, Congenital
Anemia, Hemolytic
Hematologic Diseases
Genetic Diseases, Inborn