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New drug XTX501 takes aim at Hard-to-Treat cancers

NCT ID NCT07688577

Disease control Sponsor: Xilio Development, Inc. 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 07, 2026 · Last updated Jul 08, 2026 · Updated 1 time

Summary

This study tests a new drug called XTX501 in people with metastatic non-small cell lung cancer (NSCLC) or other advanced solid tumors. The goal is to see if the drug is safe and can shrink tumors. Participants receive XTX501 alone, and researchers monitor side effects and how well the cancer responds.

What this could mean

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

Active substance
XTX501
What this could lead to
If successful, XTX501 could offer a new treatment option for people with advanced lung cancer or other solid tumors that have not responded to standard therapies.
What could go wrong
This is an early, first-in-human trial, so safety and effectiveness are not yet known. The drug may cause side effects or fail to shrink tumors.

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 1/2

Runs two stages together: safety and dose first, then whether the treatment works.

Participants

About 140 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

Nov 2029

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

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

Anyone

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: * Measurable disease at baseline per RECIST v1.1 * ECOG performance status of 0 or 1 * Adequate organ function * Metastatic NSCLC: * Must have histologically confirmed metastatic NSCLC. * Tumor must have been assessed for EGFR and ALK per local standard of practice; patients with these driver mutations are excluded. * Patients with tumors known to have the following alterations are excluded: ROS1, RET, MET, HER-2, NTRK 1/2/3. * Patients must have previously derived clinical benefit from a PD-1/PD-L1 inhibitor or PD-1/PDL-1 bispecific without progression for at least 6 months. Exclusion Criteria: * Prior treatment with IL-2 * History of significant pulmonary disease * History of clinically significant cardiovascular disease * Active CNS metastases * Pregnant or breastfeeding In Phase 1, participants with select additional solid tumor types may be enrolled.

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Conditions

The condition(s) this trial relates to.

non-small cell lung carcinoma

As listed by the trial registrant

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

Advanced solid tumor Metastatic NSCLC - non-small cell lung cancer

How to take part

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

  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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