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Completed No phase listed Observational

EXPLORE: A Natural History Study of Acute Hepatic Porphyria (AHP)

ClinicalTrials.gov ID: NCT02240784

Public ClinicalTrials.gov record NCT02240784. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Jun 26, 2026, 2:04 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Natural History Study of Acute Hepatic Porphyria (AHP) Patients With Recurrent Attacks

Study identification

NCT ID
NCT02240784
Recruitment status
Completed
Study type
Observational
Phase
Not listed
Lead sponsor
Alnylam Pharmaceuticals
Industry
Enrollment
136 participants

Conditions and interventions

Interventions

Not listed

Eligibility (public fields only)

Age range
12 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jul 31, 2014
Primary completion
Apr 25, 2021
Completion
Apr 25, 2021
Last update posted
May 16, 2021

2014 – 2021

United States locations

U.S. sites
8
U.S. states
8
U.S. cities
8
Facility City State ZIP Site status
Clinical Trial Site San Francisco California 94143
Clinical Trial Site Miami Florida 33136
Clinical Trial Site Ann Arbor Michigan 48109
Clinical Trial Site New York New York 10029
Clinical Trial Site Winston-Salem North Carolina 27157
Clinical Trial Site Philadelphia Pennsylvania 19107
Clinical Trial Site Galveston Texas 77555
Clinical Trial Site Salt Lake City Utah 84112

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 22 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT02240784, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 16, 2021 · Synced Jun 26, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT02240784 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →