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Can a simple letter boost breast cancer screening? singapore study aims to find out

NCT ID NCT07651345

Knowledge-focused Sponsor: National University Hospital, Singapore Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests five different reminder strategies to encourage women in Singapore who are overdue for mammograms to get screened. About 12,750 women aged 50-69 who have not had a mammogram in over two years will receive reminders by mail, with some getting a pre-scheduled appointment or extra follow-up. The goal is to see which approach works best to increase screening rates and improve early detection of breast cancer.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
mailed reminders
What this could lead to
If successful, this study could identify the most effective way to remind women to get mammograms, helping to catch breast cancer earlier and save lives.
What could go wrong
This is a behavioral study, not a medical treatment. The reminders may not significantly increase screening rates, and results may not apply to all women.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 12,750 people

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

Started

Mar 2026

Expected to finish

Dec 2027

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.

Ages

50 to 69 years

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Singaporean citizen * Age 50-69 * Registered as a patient at the National University Hospital * Registered and active user of NUHS App * Signed up with Healthier SG with a primary care provider within the NUHS Primary Care Network * Must be defaulted repeat screeners : Must have done one prior mammogram screening but not in the past 2 years Exclusion Criteria: * Diagnosis of breast cancer in EPIC * Mammogram done in the past 24 months in EPIC

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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm

As listed by the trial registrant

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

Breast cancer Breast neoplasm Early breast cancer detection Early detection of cancer Mammogram uptake Mammography screening

How to take part

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

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    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

  • National University Hospital Singapore

    Singapore, Singapore

More trials for these conditions

Other studies related to the condition(s) this trial covers.