Monitoring pregnancy and infant outcomes after tralokinumab exposure

Monitoring Pregnancy and Infant Outcomes Following Tralokinumab Exposure During Pregnancy in the US and Canada - PROTECT

Observational University of California, San Diego · NCT05938478

This study looks at how using the medication tralokinumab during pregnancy affects both the pregnancy and the baby's health compared to pregnant individuals with atopic dermatitis who didn't use the drug.

Quick facts

Study typeObservational
Enrollment900 (estimated)
SexFemale
SponsorUniversity of California, San Diego Academic / other
Drugs / interventionsTralokinumab, methotrexate
Locations1 site (La Jolla, California)
Trial IDNCT05938478 on ClinicalTrials.gov

What this trial studies

This observational study aims to investigate the effects of tralokinumab exposure during pregnancy on pregnancy and infant outcomes. It compares outcomes in pregnant individuals who have been exposed to tralokinumab with those who have atopic dermatitis but have not used the medication. Participants will complete phone interviews during and after pregnancy, provide medical records, and fill out online surveys regarding their child's development. All data collection is conducted remotely, eliminating the need for site visits.

Who should consider this trial

Good fit: Ideal candidates include currently pregnant individuals diagnosed with atopic dermatitis residing in the US or Canada.

Not a fit: Patients who are not currently pregnant or those without a diagnosis of atopic dermatitis may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide valuable insights into the safety of tralokinumab during pregnancy, helping to inform treatment decisions for pregnant individuals with atopic dermatitis.

How similar studies have performed: While this study is observational and focuses on a specific medication, similar studies have successfully monitored pregnancy outcomes related to other treatments, suggesting potential for valuable findings.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

Eligibility for the cohort study includes the following:

1. Currently pregnant at the time of enrollment
2. Reside in the US or Canada at the time of enrollment
3. Verbal informed consent to participate OTIS Pregnancy Registry
4. Current diagnosis of AD at the time of enrollment

Cohort 1: Tralokinumab-Exposed Cohort

1. Diagnosed with AD
2. Exposure to tralokinumab for any number of days, at any dose, and at any time during pregnancy or within 16 weeks prior to the date of conception
3. Agree to the conditions and requirements of the study including the interview schedule, dysmorphology exam (for the first 80 pregnancies resulting in live born infants), developmental screening, and release of medical records

Cohort 2: AD Comparator I- Phototherapy or Systemic Treatment

1. Diagnosed with AD
2. Exposed to phototherapy and/or systemic therapy for the treatment of AD for any number of days, at any dose, and at any time within 5 half-lives prior to the date of conception or during pregnancy
3. Agree to the conditions and requirements of the study including the interview schedule, dysmorphology exam (for the first 80 pregnancies resulting in live born infants), developmental screening, and release of medical records

Cohort 3: AD Comparator II - With or Without Treatment

1. Diagnosed with AD
2. May or may not have received treatment for AD, but have not been exposed to any dose of phototherapy or systemic therapy for the treatment of AD within 5 half-lives prior to the estimated date of conception or any time during pregnancy.
3. Agree to the conditions and requirements of the study including the interview schedule, dysmorphology exam (for the first 80 pregnancies resulting in live born infants), developmental screening, and release of medical records

Exclusion Criteria:

Pregnant women meeting any of the following criteria will not be included in the cohort study:

Cohort 1: Tralokinumab-Exposed Cohort

1. Women who have enrolled in the tralokinumab cohort study with a previous pregnancy
2. Exposure to any dose of methotrexate or mycophenolate mofetil within 5 half-lives prior to the estimated date of conception or anytime during pregnancy
3. Retrospective enrollment after the outcome of pregnancy is known (i.e., the pregnancy has ended prior to enrollment)
4. Results of a diagnostic test are positive for a major structural birth defect prior to enrollment. However, women who have had any normal or abnormal prenatal screening or diagnostic test prior to enrollment are eligible as long as the test result does not indicate a major structural defect

Cohort 2: AD Therapy Comparator I- Phototherapy or Systemic Treatment

1. Pregnant women who have enrolled in the tralokinumab cohort study with a previous pregnancy
2. Exposure to any dose of tralokinumab, methotrexate or mycophenolate mofetil within 5 half-lives prior to the estimated date of conception or anytime during pregnancy.
3. Retrospective enrollment after the outcome of pregnancy is known (i.e., the pregnancy has ended prior to enrollment)
4. Results of a diagnostic test are positive for a major structural defect prior to enrollment. However, women who have had any normal or abnormal prenatal screening or diagnostic test prior to enrollment are eligible as long as the test result does not indicate a major structural defect

Cohort 3: AD Therapy Comparator II - With or Without Treatment

1. Pregnant women who have enrolled in the tralokinumab cohort study with a previous pregnancy
2. Exposure to any dose of tralokinumab, methotrexate or mycophenolate mofetil within 5 half-lives prior to the estimated date of conception or anytime during pregnancy
3. Exposure to any dose of phototherapy and/or systemic therapy for the treatment of AD within 5 half-lives prior to the estimated date of conception or during pregnancy
4. Retrospective enrollment after the outcome of pregnancy is known (i.e., the pregnancy has ended prior to enrollment)
5. Results of a diagnostic test are positive for a major structural defect prior to enrollment. However, women who have had any normal or abnormal prenatal screening or diagnostic test prior to enrollment are eligible as long as the test result does not indicate a major structural defect

Case-Series: Tralokinumab-Exposed Case Series

Pregnancies with tralokinumab exposure that do not meet the exposed cohort (Cohort 1) criteria will be excluded from the cohort, but will be included in the Exposure Series. Women who are eligible for enrollment in the Exposure Series include, but are not limited to the following: exposed to tralokinumab during pregnancy for an indication other than AD, women who enrolled with a previous pregnancy in the cohort, and retrospective reports of a tralokinumab-exposed pregnancy after the outcome of pregnancy is known. With informed consent, data will be collected from those enrolled in the Exposure Series from maternal interviews and medical record review using the same protocol as the cohort study to the extent possible.

Where this trial is running

La Jolla, California

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 Atopic DermatitisEczemaADAtopic dermatitisTralokinumabAdbryAdtralzaPregnancy
Last reviewed 2026-06-13 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.