Could a common mental health drug prevent weight loss in cancer patients?
NCT ID NCT07633236
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study is testing whether a low dose of olanzapine, a drug usually used for mental health conditions, can prevent or treat the loss of appetite and weight that often happens in cancer patients receiving chemotherapy. About 100 adults with stomach or ovarian cancer will take the drug daily during their pre-surgery chemo. The goal is to see if it helps them maintain weight, control nausea, and feel better overall.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- olanzapine (a drug typically used for mental health conditions, here at a low dose)
- What this could lead to
- If it works, this could offer a simple, low-cost way to help cancer patients maintain weight and quality of life during chemotherapy.
- What could go wrong
- This is a single-center trial with only 100 participants, so results may not apply broadly. Olanzapine can cause side effects like drowsiness or metabolic changes.
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
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 100 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2025
- Expected to finish
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May 2027
An estimate. End dates often move.
- Lead sponsor
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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
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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: * Age ≥18 years * ECOG status 0-2 * Localized/locally advanced ovarian or gastric cancer requiring neoadjuvant/preoperative chemotherapy followed by surgery * Ability to consume food/medications orally Exclusion Criteria: * Olanzapine use (\>4 days) for other indications at enrollment * Current use of antipsychotics/antidepressants * Systemic corticosteroid use (\>7 days within the last 4 weeks) * History of psychiatric disorders
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Federal State Budgetary Institution "N.N. Blokhin National Medical Research Center of Oncology" оf the Ministry of Health of the Russian Federation
RECRUITINGMoscow, Russia
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