ClinicalTrials.gg
RecruitingNCT05755867Updated Feb 20, 2025

Global PNH Patient Registry

An observational study in Paroxysmal Nocturnal Hemoglobinuria, sponsored by Aplastic Anemia and MDS International Foundation. Recruiting at 1 site in United States. Per ClinicalTrials.gov, last updated 2025-02-20.

Sponsored by Aplastic Anemia and MDS International Foundation · Observational

From the registry’s dates

  • Primary completion was expected by May 2026, 6 months ago, but the record still lists the study as recruiting.
  • Started May 2021; still recruiting 5 years 6 months later.
Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
500
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 68 studies in Hemoglobinuria, Paroxysmal with a site in United States — 10 open to participants now, 16 under way, 4 of them phase 3. Hemoglobinuria, Paroxysmal · United States.

Planned enrollment
4th of 13
500 · median 75
Started
2021
with 4 others
Observational
13 of 68
5 open now
Primary completion
2026-05
later than 0 of 15 live
Registered
59th of 68
by date

Among the 68 studies in Hemoglobinuria, Paroxysmal with a site in United States, this one is the 4th largest by planned enrollment of the 13 observational ones, is one of 5 that started in 2021, is one of 13 observational ones, reaches primary completion later than 0 of the 15 other live ones, and was the 59th registered.

By phase

68 studies; the count open now beside each. This study's row is marked.

Phase 322 · 1 open
Phase 221 · 4 open
Observationalthis study13 · 5 open
No phase5 · 0 open
Phase 15 · 0 open
Other kind1 · 0 open
Phase 41 · 0 open

By the year they started

First in 1996; this study’s year is marked. 5 started in 2021.

Size and results

Median enrollment 53 across the 54 interventional studies, 75 across the 13 observational. Of the 50 that completed or were terminated, 26 (52%) have results posted.

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Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 68 studies in Hemoglobinuria, Paroxysmal with a site in United States, or all of them as a file.
02

Study summary

The primary aim of the Global Paroxysmal Nocturnal Hemoglobinuria (PNH) Patient Registry is to conduct a prospectively-planned and efficient natural history study that will result in a more comprehensive understanding of the disease and its course and pace over time. Other registry objectives include the following:

  • Provide a convenient online platform for participants (or caregivers) to self-report cases of PNH.
  • Develop a communications registry within the Global PNH Patient registry (e.g., to notify patients of research studies and clinical trials).
  • Characterize and describe the Global PNH population as a whole, enhancing the understanding of disease prevalence and phenotype as well as the rate of progression of disease characteristics.
  • Assist the PNH community with the development of recommendations and standards of care.
  • Be a case-finding resource to be used for researchers who seek to study the pathophysiology of PNH, retrospectively collate intervention outcomes, and design prospective trials of novel treatments.
Read the detailed description

The Global PNH Patient Registry is a prospective, longitudinal, web-based, observational natural history study. Participants with PNH will be followed throughout the course of their lives with either the participant or authorized respondents contributing data at varying intervals throughout the course of the study. Data will be collected at the start of the study (baseline), at least once per year or can be updated by the participant as needed. Data will be collected on demographics, quality of life, medical history, disease phenotypes, disease-related events, personal experience with PNH, general health status, medications, and diagnoses. The Global PNH Patient Registry provides a convenient online platform for participants; facilitates communication about PNH; gives researchers the ability to characterize the PNH population as a whole; assists the PNH community with the development of recommendations and standards of care and; and serves as a case-finding resource to be used for researchers to study the pathophysiology of PNH.

A Registry Advisory Board, that may include scientists, doctors, and patient advocates, will be assembled to oversee the conduct of the study. The Advisory Board will review aggregate registry data and the use of this registry, ensure proper evaluation of protocols requesting to use registry data and/or contact registry participants, and review any protocol or confidentiality deviations on a case- by by-case basis and ensure that any such deviations are reported to the IRB.

The registry will use a web-based interface to maximize accessibility to participants and clinicians world-wide. Following informed consent, participants will be invited to enter their data and information which will be stored indefinitely or until a participant revokes their consent to participate in the study. No experimental intervention is involved in participation in the Global PNH Patient registry study.

Annual maintenance will be funded by the Aplastic Anemia and MDS International Foundation (AAMDSIF) with support from industry partners. Registry participants will be automatically enrolled in NORD's Natural History Study Program (NHS), and their de-identified information aggregated with information from other rare diseases may be used for the purposes of cross disease analysis and cross-disease research to facilitate advocacy and further NORD's mission. De-identified information may be shared with other databases such as the Rare Disease Cures Accelerator-Data and Analytics Platform (RDCA-DAP). This will allow more researchers to use the information to do research.

03

Conditions studied

  • Paroxysmal Nocturnal Hemoglobinuria

Keywords

  • PNH
  • Registry
  • Patient Registry
  • Paroxysmal Nocturnal Hemoglobinuria
04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Individuals of any age with a confirmed diagnosis of PNH or diagnosis consistent with PNH.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Individuals of any age with a confirmed diagnosis of PNH or diagnosis consistent with PNH are eligible for inclusion. PNH is defined as a genetic mutation in the PIG-A gene.

Individuals must be willing to provide . Participants can be:

  • legal adult participants who are able to provide their own consent;
  • children and adults unable to provide their own consent, for whom consent must be provided by a Legally Authorized Representative (LAR) who is a legal adult.
  • Individuals must have at least periodic access to the internet and be able to comply with web-based study procedures and data collections

Exclusion criteria

Exclusion Criteria:

  • Individuals not able to read and understand English.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
500 participants (estimated)
Target follow-up
10 Years
Patient registry
Yes

Groups and cohorts

  • PNH Patients

    Individuals of any age with a confirmed diagnosis of PNH or diagnosis consistent with PNH are eligible for inclusion.

06

What researchers measure

Primary outcomes

  1. Characterize and describe the Global PNH population

    Understand disease prevalence and phenotype as well as the rate of progression of disease characteristics. Gather patient experiences including demographics, diagnostics, treatment, symptoms, and quality of life.

    Time frame: 5-10 years

Secondary outcomes

  1. Develop a communications registry

    * Be a case-finding resource to be used for researchers who seek to study the pathophysiology of PNH, retrospectively collate intervention outcomes, and design prospective trials of novel treatments. * Notify patients of research studies and clinical trials as appropriate.

    Time frame: 5-10 years

07

Study locations

1 of 1 sites recruiting
  • Aplastic Anemia and MDS International Foundation
    Bethesda, Maryland 20814, United States
    Recruiting
    • Nyaradzo Sirewu, MPH · Contactsirewu@aamds.org · 301-279-7202
    • Alice Houk, MS · Principal investigator
08

References and documents

Individual participant data

Plan to share: Yes — It is anticipated that the Global PNH Patient Registry will be a valuable resource for current and future research. A Global PNH Patient Registry Advisory Board will ensure proper evaluation of protocols that request use of registry data and/or contact registry participants. To promote use of the repository, aggregate information about database contents will be updated quarterly or semi-annually and made available to the public. Such information may include number of registrants, prevalence of common diagnoses of registrants, demographic information, and percent willing to be contacted for future research. Investigators wanting to use the registry or contact participants will need to apply to the Advisory Board. The application will require information concerning: Principal Investigator, aims and hypotheses of the proposed research, where the research will be performed, and how the research will be funded.

Supporting information: Clinical study report

Time frame: Data will be available 2 years after study start and will be analyzed through study ending.

Access criteria: Sharing is subject to review by the Medical Advisory Committee

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started May 2021 (actual). Primary completion is estimated for May 2026, 60 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 23, 2023
First posted
Mar 6, 2023
StartActual
May 6, 2021
Primary completionEst.
May 6, 2026
CompletionEst.
May 6, 2031
Last update
Feb 20, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 20, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05755867
Lead sponsor
Aplastic Anemia and MDS International Foundation
Collaborators
National Organization for Rare Disorders
Responsible party
Sponsor
First posted
Mar 6, 2023
Start date
May 6, 2021
Primary completion
May 6, 2026 (estimated)
Completion
May 6, 2031 (estimated)
Last update
Feb 20, 2025

Study contacts

Alice Houk, MS
Contact
houk@aamds.org
3012797202 ext. 101
Elizabeth Kottke
Contact
ekottke@rarediseases.org
475.289.6855 ext. 275
Alice Houk, MS
principal investigator · Aplastic Anemia and MDS International Foundation

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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