Clinical trialNCT05139225CompletedPhase 1Interventional

A Study of TTI-622 in Combination With Daratumumab Hyaluronidase-fihj in People With Multiple Myeloma

SponsorMemorial Sloan Kettering Cancer CenterEnrollment7Multiple Myeloma

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

This study will test the safety of TTI-622 in combination with daratumumab hyaluronidase-fihj in people with relapsed/refractory multiple myeloma. The researchers look for the highest dose TTI-622 that causes few or mild side effects in participants when given in combination with daratumumab hyaluronidase-fihj. Once the researchers find the highest safe dose of each study drug, they will further test the combination TTI-622 + daratumumab hyaluronidase-fihj) in new participants to find out if the combinations are effective in treating relapsed/refractory multiple myeloma. Researchers think that combining TTI-621 or TTI-622 with daratumumab hyaluronidase-fihj, a standard treatment for multiple myeloma, may be an effective treatment approach.

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Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

Alexander Lesokhin, MD
Memorial Sloan Kettering Cancer Center
Principal InvestigatorKOL profile →
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

7 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

Memorial Sloan Kettering Cancer Center
Basking Ridge, New Jersey, United States
Memorial Sloan Kettering Monmouth
Middletown, New Jersey, United States
Memorial Sloan Kettering Bergen
Montvale, New Jersey, United States
Memorial Sloan Kettering Commack
Commack, New York, United States
Memorial Sloan Kettering Westchester
Harrison, New York, United States
Memorial Sloan Kettering Cancer Center
New York, New York, United States
Memorial Sloan Kettering Nassau
Uniondale, New York, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

DARATUMUMAB/HYALURONIDASE-FIHJTTI-622

Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 28 Oct 2021
Primary completion: 1 Jul 2026
Completion: 1 Jul 2026
Last update posted: 6 Jul 2026
Registered enrollment: 7
Registry id: NCT05139225

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.