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NCT05274451 · ClinicalTrials.gov registry record · Phase 1

A Study to Investigate LYL797 in Adults With Solid Tumors

A Phase 1 study, sponsored by Lyell Immunopharma.

Terminated
Registry status
Phase 1
Development phase
57
Enrollment target

NCT05274451: Clinical Trial Phase 1 study, sponsored by Lyell Immunopharma.

NCT05274451 is a Phase 1 study that was terminated before completion, run by Lyell Immunopharma. The registered enrollment target is 57 participants, roughly in line with the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT05274451, a Phase 1 study, was terminated before completion, sponsored by Lyell Immunopharma.

TERMINATED
Registry status
Phase 1
Development phase
57 participants
Enrollment target

Study Summary

This study will evaluate the safety and tolerability of LYL797, a ROR1-targeted CAR T-cell therapy, in patients with ROR1+ relapsed or refractory triple negative breast cancer (TNBC), non-small cell lung cancer (NSCLC), platinum-resistant epithelial ovarian cancer/ fallopian tube cancer/ primary peritoneal cancer (Ovarian cancer), or Endometrial cancer. The first part of the study will determine the safe dose for the next part of the study, and will enroll patients with TNBC, NSCLC, Ovarian or Endometrial cancer. The second part of the study will test that dose in additional patients with TNBC, NSCLC, Ovarian or Endometrial cancer.

Primary Outcome

Incidence of dose-limiting toxicities (DLTs)

Interventions

  • BIOLOGICAL LYL797

Trial Details

FieldValue
Enrollment Target 57 participants
Start Date 2022-03-29
Est. Completion 2024-11-27
Phase Phase 1
Lyell Immunopharma

6 total trials

Why NCT05274451 stopped before completion

NCT05274451 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 57 participants, a relatively small participant target, roughly in line with the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target.

The record links to 0 conditions, and to 1 intervention - of which LYL797 is the first listed.

NCT05274451 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT05274451 about?

NCT05274451 is a clinical study titled "A Study to Investigate LYL797 in Adults With Solid Tumors". This study will evaluate the safety and tolerability of LYL797, a ROR1-targeted CAR T-cell therapy, in patients with ROR1+ relapsed or refractory triple negative breast cancer (TNBC), non-small cell lung cancer (NSCLC), platinum-resistant epithelial ovarian cancer/ fallopian tube cancer/ primary per...

What is the current status of trial NCT05274451?

This trial is currently terminated. It is a Phase 1 study. The enrollment target is 57 participants. The study started on 2022-03-29. Estimated completion is 2024-11-27.

What interventions are being tested in trial NCT05274451?

The interventions under investigation include: LYL797 (BIOLOGICAL).

Who is sponsoring clinical trial NCT05274451?

This trial is sponsored by Lyell Immunopharma, which has 6 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT05274451's enrollment target sits among peer trials

57 901st of 2000 higher than 1,099 of 2,000 other Phase 1 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT05274451, the US trial registry maintained by the National Library of Medicine. NCT05274451 (small enrollment · none site footprint · terminated) retrieved and formatted by PlainTrial, see methodology.