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Chemotherapy drug temozolomide under review for tough pituitary tumors

NCT ID NCT07695844

Disease control Sponsor: University of Sao Paulo General Hospital 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 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 10, 2026 · Last updated Jul 10, 2026

Summary

This study looks at how well the chemotherapy drug temozolomide works for people with aggressive pituitary tumors or pituitary cancer that hasn't responded to standard treatments like surgery or radiation. Researchers are collecting data from medical records across multiple hospitals in Latin America to see how patients respond, how long the tumor is controlled, and whether certain tumor features can predict who benefits most. The goal is to fill a gap in knowledge, since most existing data comes from Europe and the United States.

What this could mean

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

Active substance
temozolomide (chemotherapy drug)
What this could lead to
If results are positive, this could confirm temozolomide as a reliable treatment option for aggressive pituitary tumors in Latin America.
What could go wrong
This is a retrospective study, not a controlled trial, so results may be less reliable. Temozolomide can cause side effects like nausea, fatigue, and low blood cell counts.

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 80 people

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

Expected to start

Aug 2026

An estimate. Start dates often move.

Expected to finish

Dec 2028

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

The study population consists of patients diagnosed with aggressive pituitary neuroendocrine tumors (PitNETs) or pituitary carcinomas who were treated with temozolomide as part of routine clinical management at participating centers across Latin America, including a previously established Brazilian multicenter cohort. Patients were identified retrospectively through review of institutional pathology, oncology, and endocrinology records. The population reflects real-world clinical practice, encompassing diverse tumor subtypes (functioning and non-functioning PitNETs) and variable temozolomide dosing protocols, rather than a population selected under a standardized experimental treatment regimen.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Anyone

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: Histologically confirmed pituitary neuroendocrine tumor (PitNET) meeting criteria for aggressive behavior (Knosp grade ≥3, radiological tumor growth \>20% within 6 months, and/or progression despite optimized standard therapy including surgery and/or radiotherapy), OR histologically or clinically confirmed pituitary carcinoma (defined by the presence of craniospinal or systemic metastasis) Treatment with temozolomide, at any dose or duration, administered for the above indication Availability of pre-treatment and post-treatment imaging sufficient to assess radiological response Temozolomide treatment initiated within the defined study period Exclusion Criteria: Insufficient clinical or imaging data to assess the primary outcome measure Temozolomide administered for an indication other than aggressive PitNET or pituitary carcinoma Loss to follow-up before any post-treatment imaging assessment

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Conditions

The condition(s) this trial relates to.

pituitary adenocarcinoma Pituitary Neoplasms pituitary tumor

As listed by the trial registrant

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

Pituitary neoplasms

How to take part

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  1. 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 ↗

  2. 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.

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