Monitoring pregnancy outcomes in women exposed to patisiran-LNP

Patisiran-LNP Pregnancy Surveillance Program

Observational Alnylam Pharmaceuticals · NCT05040373

This study is looking to see how patisiran-LNP affects pregnancy and baby outcomes in women who have been treated with it.

Quick facts

Study typeObservational
Enrollment10 (estimated)
SexFemale
SponsorAlnylam Pharmaceuticals Industry-sponsored
Locations7 sites (Iowa City, Iowa and 6 other locations)
Trial IDNCT05040373 on ClinicalTrials.gov

What this trial studies

This observational program aims to collect and evaluate pregnancy outcomes, complications, and fetal/neonatal/infant outcomes in women who have been exposed to patisiran-LNP. The study will gather data from participants who were exposed to the treatment starting from 12 weeks before their last menstrual period or at any point during their pregnancy. By analyzing this data, the program seeks to understand the safety and effects of patisiran-LNP during pregnancy.

Who should consider this trial

Good fit: Ideal candidates for this program are women who have been exposed to patisiran-LNP during pregnancy or in the 12 weeks prior to their last menstrual period.

Not a fit: Patients who have not been exposed to patisiran-LNP or who are not pregnant may not receive any benefit from this program.

Why it matters

Potential benefit: If successful, this program could provide valuable insights into the safety of patisiran-LNP during pregnancy, helping to inform treatment decisions for women with hATTR amyloidosis.

How similar studies have performed: While this program is focused on pregnancy outcomes related to patisiran-LNP, similar observational studies have shown success in evaluating treatment safety during pregnancy.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Documentation that the patient was exposed to patisiran-LNP at any point starting from 12 weeks before LMP or at any point during pregnancy

Exclusion Criteria:

* There are no exclusion criteria for participation in this program.

Where this trial is running

Iowa City, Iowa and 6 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Hereditary Transthyretin-mediated AmyloidosisPolyneuropathyHereditary neuropathic amyloidosisFamilial amyloidosisAmyloidosisAmyloidosis senileCardiac amyloidosis
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.