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Status unknownNCT05496933Updated Sep 1, 2022

Colombia National Porphyria Registry

An observational study in Rare Diseases and Porphyrias, sponsored by Fundación Grupo de Investigación en Cuidados Intensivos y Obstetricia. Status unknown at 1 site in Colombia. Per ClinicalTrials.gov, last updated 2022-09-01.

Sponsored by Fundación Grupo de Investigación en Cuidados Intensivos y Obstetricia · Observational

The sponsor has not verified this record recently (last verified Aug 2022), so the status shown — last known as Active, not recruiting — may be out of date.
Study type
Observational
Model
Case-only
Time perspective
Cross-sectional
Enrollment
100
Sex
All
01

Study summary

porphyria is classified as a rare disease and is produced by defects in the enzymatic activity in the biosynthesis of the heme group that leads to the over-accumulation and excretion of porphyrin precursors in hepatocytes or erythroid cells, extrahepatic or extramedullary cells, tissue, and end-organ injury. Acute intermittent porphyria is the most common and severe form of hepatic porphyria, with an annual incidence of symptomatic patients of 0.13 per million people. Aim: characterization of cases of acute hepatic porphyria in Colombia. Methods: a descriptive pilot study of patients diagnosed with acute hepatic porphyria's in Colombia. Patients of all age groups with a confirmed diagnosis of acute hepatic porphyria. Patients with concomitant pathologies, as well as pregnant women, will also be included. Patients who refuse to participate in the study will be excluded. Expected results: describe the sociodemographic and clinical characteristics of patients with a diagnosis of acute hepatic porphyria, and encourage patients and/or representatives in the research agenda.

Read the detailed description

A cross-sectional descriptive observational study is carried out in adult patients diagnosed with HAP in Colombia, the incidence and prevalence were estimated, the clinical, socio-demographic and acute attack characteristics are described, and the health-related quality of life was evaluated with the SF-36 questionnaire.

02

Conditions studied

  • Rare Diseases
  • Porphyrias

Keywords

  • Acute Hepatic Porphyria
  • Porphyrias
  • Quality of life
03

In context

Porphyria, Erythropoietic

33 studies on the registry are indexed under Porphyria, Erythropoietic; 1 is open to participants now.

This study's planned enrollment of 100 is close to the median of 110 across 14 observational studies indexed under Porphyria, Erythropoietic.

Browse Porphyria, Erythropoietic studies →

Lead sponsor

Fundación Grupo de Investigación en Cuidados Intensivos y Obstetricia is the lead sponsor of 4 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

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

Study population

Inclusion Criteria: - Patients of all age groups with a confirmed diagnosis of acute hepatic porphyria with AT LEAST ONE OF THE FOLLOWING CHARACTERISTICS will be included:

  • Acute symptoms consistent with disease and positive urine qualitative porphobilinogen or substantially elevated quantitative porphobilinogen.
  • Acute symptoms compatible with the disease and decreased HMBS enzyme activity (less than 50%).
  • Mutation in the genetic sequence of the HMBS gene.
  • Confirmatory test that identifies the type of porphyria (analysis of total and fractionated porphyrins in urine, feces and plasma).

Patients with concomitant pathologies, as well as pregnant women, will also be included.

Exclusion criteria:

  • Patients who refuse to participate in the study will be excluded.

Eligibility criteria

Inclusion Criteria: - Patients of all age groups with a confirmed diagnosis of acute hepatic porphyria with AT LEAST ONE OF THE FOLLOWING CHARACTERISTICS will be included:

  • Acute symptoms consistent with disease and positive urine qualitative porphobilinogen or substantially elevated quantitative porphobilinogen.
  • Acute symptoms compatible with the disease and decreased HMBS enzyme activity (less than 50%).
  • Mutation in the genetic sequence of the HMBS gene.
  • Confirmatory test that identifies the type of porphyria (analysis of total and fractionated porphyrins in urine, feces and plasma).

Patients with concomitant pathologies, as well as pregnant women, will also be included.

Exclusion criteria:

  • Patients who refuse to participate in the study will be excluded.
05

Study design

Observational model
Case-only
Time perspective
Cross-sectional
Enrollment
100 participants (estimated)
Target follow-up
2 Months
Patient registry
Yes
06

What researchers measure

Primary outcomes

  1. Incidence

    Total new cases of acute porphyry

    Time frame: through study completion, an average of 3 year

  2. Prevalence

    Total cases of acute porphyry in Colombia

    Time frame: through study completion, an average of 3 year

  3. Life quality

    Describe the well-being of patients, seeks to measure the impact that medical interventions have on the level of well-being of the patient, limiting itself to the experience that he has of his illness and its impact on it, evaluated with the The Short Form Health Survey 36 (SF-36 questionnaire: there are 36 questions, the possible score is from 0 to 100, with a higher score indicating a better health-related quality of life.

    Time frame: through study completion, an average of 3 year

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Study locations

1 site
  • Gestion Salud
    Cartagena, Bolivar 130015, Colombia
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 1, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT05496933
Lead sponsor
Fundación Grupo de Investigación en Cuidados Intensivos y Obstetricia
Collaborators
Recordati Rare Diseases
Responsible party
José Antonio Rojas Suarez (Principal Investigator, Fundación Grupo de Investigación en Cuidados Intensivos y Obstetricia) — Principal investigator
First posted
Aug 11, 2022
Start date
Apr 1, 2021
Primary completion
Dec 21, 2021
Completion
Dec 30, 2022 (estimated)
Last update
Sep 1, 2022

Oversight

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

Not currently enrolling

This study is status unknown, as verified in Aug 2022. You cannot join it, but the record below documents what was studied.

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