# A Study of Ifinatamab Deruxtecan in Pediatric Participants With Relapsed or Refractory Solid Tumors (MK-9999-01D/LIGHTBEAM-U01)

Source: https://onco.cc/trials/nct07630974/  
OnCo record `nct07630974` (Trial). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

A phase 1/2 trial of Ifinatamab deruxtecan in advanced solid tumours, run by Merck Sharp & Dohme LLC, now recruiting.

## Summary

A Study of Ifinatamab Deruxtecan in Pediatric Participants With Relapsed or Refractory Solid Tumors (MK-9999-01D/LIGHTBEAM-U01) is a phase 1/2 interventional study registered as NCT07630974 by Merck Sharp & Dohme LLC, with 134 participants planned, started 2026-07-06 and due to reach its primary completion in 2031-08-17. Interventions recorded: Ifinatamab Deruxtecan.

## Fields

- Kind: Trial
- Status: recruiting
- Last checked: 2026-09-16
- Tags: pipeline; ctgov-ingest
- Registry id: NCT07630974
- Phase: 1/2
- Setting: LIGHTBEAM-U01 Substudy 01D: A Phase 1b/2 Substudy to Evaluate the Safety and Efficacy of Ifinatamab Deruxtecan in Pediatric Participants With Relapsed or Refractory Solid Tumors
- Sponsor: Merck Sharp & Dohme LLC
- Enrolled: 134

## Sources

- ClinicalTrials.gov NCT07630974: https://clinicaltrials.gov/study/NCT07630974

## Connected records

- cancers: [Metastatic cancer (cancer that has spread)](https://onco.cc/cancers/metastatic-cancer/)
- drugs: [Ifinatamab deruxtecan](https://onco.cc/drugs/ifinatamab-deruxtecan/)
- companies: [Daiichi Sankyo](https://onco.cc/companies/daiichi-sankyo/), [Merck & Co. (MSD)](https://onco.cc/companies/merck/)

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