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Prospective Psychometric Evaluation Study of a Patient-reported Outcomes (PRO) Instrument for Congenital Thrombotic Thrombocytopenic Purpura (cTTP, Upshaw-Schulman Syndrome [USS], Hereditary Thrombotic Thrombocytopenic Purpura [hTTP]

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Baxalta

Status

Completed

Conditions

Congenital Thrombotic Thrombocytopenic Purpura

Treatments

Other: No intervention

Study type

Observational

Funder types

Industry

Identifiers

Details and patient eligibility

About

The purpose of this study is to assess the psychometric properties of a recently developed congenital thrombotic thrombocytopenic purpura (cTTP)-specific patient-reported outcomes (PRO) instrument.

Enrollment

41 patients

Sex

All

Ages

12+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  1. The participant is an adolescent aged 12 to 17 years or an adult aged ≥18 years;
  2. The participant has been diagnosed with congenital thrombotic thrombocytopenic purpura (cTTP) and is currently receiving prophylactic or on-demand treatment with fresh frozen plasma (FFP), or solvent detergent (S/D) plasma, or Von Willebrand Factor/Factor VIII (VWF/FVIII) concentrates;
  3. In the instance that the participant is identified and recruited remotely (Direct-to-Patient (DtP) recruitment), access to the internet and possession of an internet-connecting device is required;
  4. The participant has provided informed consent, and in the instance that the participant is an adolescent, a legal guardian has provided informed consent and the adolescent has provided assent.

Exclusion criteria

  1. The participant cannot read nor write;
  2. The participant is non-English speaking;
  3. The participant is currently participating in a clinical trial.

Trial design

41 participants in 2 patient groups

Participants with cTTP - adolescents
Description:
Adolescents aged 12 to 17 years
Treatment:
Other: No intervention
Participants with cTTP - adults
Description:
Adults aged ≥18 years
Treatment:
Other: No intervention

Trial contacts and locations

4

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Data sourced from clinicaltrials.gov

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