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Exosome blood test could spot ovarian cancer return when standard tests fail

NCT ID NCT07153705

Diagnosis Sponsor: Beihua Kong Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study tests a new blood test called OCS that uses exosome technology to monitor for ovarian cancer recurrence. It focuses on patients whose CA125 levels were normal before initial treatment, making standard monitoring difficult. The trial will enroll 32 women with stage I-IV ovarian cancer who have completed surgery and chemotherapy.

What this could mean

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

Active substance
OCS exosome detection test
What this could lead to
If successful, this could provide a reliable way to detect ovarian cancer recurrence early in patients whose standard CA125 test is not informative.
What could go wrong
This is a small, early-stage study with only 32 participants, so results may not apply broadly. The test is experimental and not yet proven to be better than current methods.

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 32 people

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

Expected to start

Sep 2025

An estimate. Start dates often move.

Expected to finish

Apr 2026

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

Patients with ovarian cancer

Ages

18 years and older

Sex

Female participants only

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. Women over 18 years old; 2. Pathologically confirmed as stage I-IV primary epithelial ovarian malignant tumor; 3. ECOG \< 2; 4. The expected survival period exceeds 6 months; 5. CA125 ≤ 35 U/ml before initial treatment; 6. Undergo surgery and adjuvant chemotherapy; 7. The period between diagnosis and enrollment does not exceed 8 weeks; 8. Be willing to provide blood samples for OCS testing during the research process; 9. Sign the informed consent form. Exclusion criteria 1. Have had other malignant tumors within the last five years; 2. Have received any treatment for ovarian cancer; 3. Benign ovarian mass; 4. Non-primary ovarian tumors; 5. Combined with other malignant tumors; 6. Patients receiving neoadjuvant therapy; 7. Pregnancy.

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Conditions

The condition(s) this trial relates to.

malignant epithelial tumor of ovary ovarian cancer

As listed by the trial registrant

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

Ovarian cancer

How to take part

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  1. 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.

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