New Vaccine-Immunotherapy cocktail shows promise in ovarian cancer trial

NCT ID NCT03029403

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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Updated 1 time

Summary

This phase 2 study tests whether combining the immunotherapy drug pembrolizumab (Keytruda) with an experimental vaccine called DPX-Survivac and low-dose chemotherapy (cyclophosphamide) can shrink tumors in people with advanced ovarian, peritoneal, or fallopian tube cancer. The vaccine teaches the immune system to recognize and kill cancer cells, while pembrolizumab removes a brake on the immune system. The trial enrolled 47 participants who had already received platinum-based chemotherapy and whose cancer had progressed.

What this could mean

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

Active substance
pembrolizumab (Keytruda), DPX-Survivac vaccine, and cyclophosphamide
What this could lead to
If it works, this combination could offer a new treatment option that helps control advanced ovarian, peritoneal, or fallopian tube cancer by boosting the immune system to attack cancer cells.
What could go wrong
This is a small, early-phase trial (47 participants) with no control group, so results may not apply broadly. The combination may cause side effects like immune-related reactions or infections, and it is not yet proven to be effective.

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

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

47 people

The number who actually took part.

Started

Feb 2018

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.

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: * Patients must have histologically or cytologically confirmed advanced epithelial ovarian, primary peritoneal or fallopian tube carcinomas. * Patients must have radiologically documented disease progression from their prior line of therapy. * Patients must have measurable disease based on RECIST 1.1. * Have received a front line platinum-based regimen (administered via either IV or IP) following primary or interval debulking surgery with documented disease recurrence. * Have fulfilled the following additional requirements regarding prior treatments depending on the cohort that the patient is to be enrolled in. * Eastern Cooperative Group (ECOG) performance status \<=1. * Life expectancy greater than 16 weeks. * Availability of archival tumor tissue samples. Additional samples may be requested if tumor tissue provided is not adequate for quality and/or quantity as assessed by the laboratory. * Be willing to provide tumor tissue from a newly obtained core or excisional biopsy prior to start treatment and on day 15 of cycle 1. Exclusion Criteria: * Patients who are receiving any other investigational agents. * Diagnosis of immunodeficiency or therapy with systemic steroid or any other form of immunosuppressive therapy within 7 days prior to the first dose of trial treatment. * History of autoimmune disease, such as but not restricted to, rheumatoid arthritis, inflammatory bowel disease, systemic lupus erythematous, ankylosing spondylitis, scleroderma, or multiple sclerosis requiring treatment within the last two years. Patients with vitiligo or diabetes are not excluded. * Patients with history of thyroiditis within 5 years. * Patients with known history of active TB (Bacillus Tuberculosis). * Patients with known active central nervous system (CNS) metastases and/or carcinomatous meningitis. * Hypersensitivity to Pembrolizumab, DPX-Survivac immunovaccine, Cyclophosphamide or any of their excipients. * Patients that have received a live vaccine within 30 days of planned start of study therapy. * Prior therapy with an anti-PD-1, anti-PD-L1, anti-PD-L2 agent or DPX-Survivac vaccine.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • Princess Margaret Cancer Centre

    Toronto, Ontario, M5G 2M9, Canada

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