CompletedPhase 1

Phase I Gene Therapy Clinical Trial Using the Vector rAAV2/5-PBGD for the Treatment of Acute Intermittent Porphyria

Spain8 participantsStarted 2012-11

Plain-language summary

This is a Phase I trial aimed to determine the safety of the investigational gene therapy product (rAAV2/5-PBGD) for the treatment of Acute Intermittent Porphyria (AIP). Up to eight patients fulfilling the eligibility criteria will participate in this multicentre, open label, single dose, dose-ranging Phase I clinical trial. The enrolled patients will be followed up to assess the safety profile of the investigational gene therapy product and to establish the maximum therapeutic safe dose to be administered in future confirmatory/pivotal clinical trial(s). In addition, the biological and clinical response to the treatment with rAAV2/5-PBGD in AIP patients will be assessed. A complete evaluation of the clinical (symptoms and quality of life assessment) and laboratory (blood and urine) data will be performed.

Who can participate

Age range

18 Years – 64 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Patient's written Informed Consent * Age between 18 and 64 years, inclusively. * Patients with confirmed diagnosis of Acute Intermittent Porphyria(AIP), as confirmed by clinical, biochemical data and genetic confirmation of porphobilinogen deaminase (PBGD) gene mutation. The patient must have a severe AIP condition, with at least two hospitalizations during the previous year due to acute attacks (clinical manifestations of acute porphyria), or at least four hospitalizations during the previous year due to the requirement of hospital treatment administration (including day-hospital and home hospital program) * Previous participation in the "Observational study of acute intermittent porphyria patients" for at least six months. * Ability to follow instructions and cooperate during the study conduct Exclusion Criteria: * Pregnant women, as confirmed by a positive urine pregnancy test, or with intention of becoming pregnant * Female subjects of childbearing potential who are not using barrier methods of contraception, at least during the study. * Male subjects with partners of child bearing potential who are not using barrier contraceptive methods, at least during the study * Acute or chronic liver disease of viral, autoimmune or metabolic causes * History of acute or chronic severe gastrointestinal dysfunction (different than those typical gastrointestinal symptoms associated with an acute attack of AIP), in the opinion of the principal investigator * Kid…

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Number of patients with Adverse Events and Serious Adverse Events

Timeframe: Up to 48 weeks

Trial details

NCT IDNCT02082860

SponsorDigna Biotech S.L.

Sponsor typeINDUSTRY

Study typeINTERVENTIONAL

Primary completion2014-07

View on ClinicalTrials.gov More Acute Intermittent Porphyria trials