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CompletedNCT00833963MotHERUpdated May 16, 2019

A Study of Pregnancy and Pregnancy Outcomes in Women With Breast Cancer Treated With Trastuzumab, Pertuzumab in Combination With Trastuzumab, or Ado-Trastuzumab Emtansine

An observational study in Breast Cancer and Pregnancy, sponsored by Genentech, Inc.. Completed at 1 site in United States. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-05-16.

Sponsored by Genentech, Inc. · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
20
Ages
18 Years and older
Sex
Female
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Study summary

The MotHER Pregnancy Registry is a United States (U.S.)-based, prospective, observational cohort study in women with breast cancer who have been or are being treated with a trastuzumab (herceptin)-containing regimen with or without pertuzumab (perjeta) or ado-trastuzumab emtansine (kadcyla) during pregnancy or within 7 months prior to conception (regardless of cancer stage at the time of trastuzumab, pertuzumab, or ado-trastuzumab emtansine exposure).

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Conditions studied

  • Breast Cancer
  • Pregnancy

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In context

Breast Neoplasms

12,544 studies on the registry are indexed under Breast Neoplasms; 2,892 are open to participants now.

This study's enrollment of 20 is below the median of 184 across 2,642 observational studies indexed under Breast Neoplasms.

Browse Breast Neoplasms studies →

Lead sponsor

Genentech, Inc. is the lead sponsor of 507 studies on the registry; 23 are open to participants now.

Of its 90 completed or terminated interventional studies of FDA-regulated products, 50 (56%) have results posted.

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

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

This study is recruiting participants from anywhere within the United States. No office visits are required to participate in this registry. Information is collected from participants based on their medical charts.

Inclusion criteria

  • Pregnant; women identified at any trimester of pregnancy may enroll in this study as long as enrollment occurs prior to experiencing pregnancy outcome (that is [i.e.], live birth, stillbirth, or abortion)
  • Exposure to at least one dose of trastuzumab (as adjuvant or metastatic treatment), pertuzumab plus trastuzumab combination treatment, or ado-trastuzumab emtansine during pregnancy or within 7 months prior to conception
  • United States resident

Exclusion criteria

Exclusion Criteria:

  • Prior knowledge of pregnancy outcome (i.e., live birth, stillbirth, or abortion) at time of enrollment
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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
20 participants (actual)
Target follow-up
12 Months
Patient registry
Yes

Groups and cohorts

  • Participants Treated With Trastuzumab

    Participants who are being treated with trastuzumab during pregnancy or within 7 months prior to conception will be evaluated for cancer and pregnancy as determined by their treating physicians' standards of care, and will be observed for up to 12 months after delivery.

    Drug: Trastuzumab

  • Participants Treated With Trastuzumab and Pertuzumab

    Participants who are being treated with the combination of trastuzumab and pertuzumab during pregnancy or within 7 months prior to conception will be evaluated for cancer and pregnancy as determined by their treating physicians' standards of care, and will be observed for up to 12 months after delivery.

    Drug: Trastuzumab · Drug: Pertuzumab

  • Participants Treated With Ado-Trastuzumab Emtansine

    Participants who are being treated with ado-trastuzumab emtansine during pregnancy or within 7 months prior to conception will be evaluated for cancer and pregnancy as determined by their treating physicians' standards of care, and will be observed for up to 12 months after delivery.

    Drug: Ado-Trastuzumab Emtansine

Interventions

  • DrugTrastuzumab

    Participants will receive trastuzumab as determined by their treating physicians' standards of care.

    Also known as: Herceptin

  • DrugPertuzumab

    Participants will receive pertuzumab as determined by their treating physicians' standards of care.

    Also known as: Perjeta

  • DrugAdo-Trastuzumab Emtansine

    Participants will receive ado-trastuzumab emtansine as determined by their treating physicians' standards of care.

    Also known as: Kadcyla

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What researchers measure

Primary outcomes

  1. Number of Participants Developing Oligohydramnios

    Time frame: From enrollment up to the delivery or upon termination of pregnancy (up to 12 months)

  2. Number of Live Births

    Time frame: From Week 20 of gestation to the delivery or upon termination of pregnancy (up to 12 months)

  3. Number of Fetal Deaths/Stillbirths

    Time frame: From Week 20 of gestation to the delivery or upon termination of pregnancy (up to 12 months)

  4. Number of Fetal or Infant Major Malformations

    Time frame: From delivery up to 12 months after delivery

  5. Number of Fetal or Infant Deformations

    Time frame: From delivery up to 12 months after delivery

  6. Number of Fetal or Infant Disruptions

    Time frame: From delivery up to 12 months after delivery

  7. Number of Fetal or Infant Functional Deficits

    Time frame: From delivery up to 12 months after delivery

Secondary outcomes

  1. Number of Spontaneous Abortions

    Time frame: From enrollment up to 12 months

  2. Number of Therapeutic Abortions, or Elective Abortions

    Time frame: From enrollment up to 12 months

  3. Number of Premature Births

    Time frame: From enrollment up to 12 months

  4. Number of Infants Small for Gestational Age

    Time frame: From delivery up to 12 months after delivery

  5. Number of Cases of Intrauterine Growth Restriction (IUGR)

    Time frame: From enrollment up to 12 months

  6. Number of Other Specific Pregnancy or Delivery Complications

    Time frame: From enrollment up to 12 months

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Study locations

1 site
  • Kendle International, Inc
    Wilmington, North Carolina 28405, United States
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References and documents

Publications

  • Perachino M, Poggio F, Arecco L, Blondeaux E, Spinaci S, Marrocco C, Levaggi A, Lambertini M. Update on Pregnancy Following Breast Cancer Diagnosis and Treatment. Cancer J. 2022 May-Jun 01;28(3):176-182. doi: 10.1097/PPO.0000000000000599. PubMed 35594464 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 16, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00833963
Lead sponsor
Genentech, Inc.
Responsible party
Sponsor
First posted
Feb 2, 2009
Start date
Jan 14, 2009
Primary completion
Apr 13, 2017
Completion
Apr 13, 2017
Last update
May 16, 2019

Study contacts

Vikki Brown, M.D.
study director · Syneos Health

Oversight

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

Not currently enrolling

This study is completed, as verified in May 2019. You cannot join it, but the record below documents what was studied.

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