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New registry hopes to unlock secrets of rare breast cancer

NCT ID NCT05964504

Knowledge-focused Sponsor: University of California, San Francisco Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Sep 03, 2026 · Updated 3 times

Summary

This study is creating a registry for people with a rare type of breast cancer called invasive lobular carcinoma that has spread. Researchers will collect data from about 12 participants to develop a new tool that better measures how well treatments are working. The goal is to improve survival by understanding this cancer better.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 150 people

The number the study aims to enrol. It can still change while the study runs.

Started

Dec 2023

Expected to finish

Feb 2036

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Adult participants with histologically proven stage IV invasive lobular carcinoma

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Histologically confirmed invasive lobular carcinoma. Mixed lobular/ductal cancer is allowed. 2. Age \>=18 years 3. Any receptor subtype. 4. Ability to understand a written informed consent document, and the willingness to sign it. Exclusion Criteria: 1. Stage I-III breast cancer. 2. Lack of lobular histology on tumor biopsy. 3. Other active cancer (prior treated cancer with no current evidence of disease is allowed).

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Conditions

The condition(s) this trial relates to.

breast cancer breast carcinoma breast lobular carcinoma breast neoplasm Carcinoma, Lobular invasive lobular breast carcinoma

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Lobular breast carcinoma Metastatic breast cancer

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    4 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Abramson Cancer Center

    RECRUITING

    Philadelphia, Pennsylvania, 19104, United States

  • MD Anderson Cancer Center

    RECRUITING

    Houston, Texas, 77030, United States

  • University of California, San Diego

    RECRUITING

    San Diego, California, 92053, United States

  • University of California, San Francisco

    RECRUITING

    San Francisco, California, 94122, United States

More trials for these conditions

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