# Phase I Study of Radiolabeled OTSA101-DTPA in Patients With Relapsed or Refractory Synovial Sarcoma

> **NCT04176016** · PHASE1 · TERMINATED · sponsor: **OncoTherapy Science, Inc.** · enrollment: 12 (actual)

## Conditions studied

- Relapsed or Refractory Synovial Sarcoma

## Interventions

- **DRUG:** OTSA101-DTPA-111In
- **DRUG:** OTSA101-DTPA-90Y

## Key facts

- **NCT ID:** NCT04176016
- **Lead sponsor:** OncoTherapy Science, Inc.
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** TERMINATED
- **Start date:** 2020-01-10
- **Primary completion:** 2024-01-11
- **Final completion:** 2024-01-11
- **Target enrollment:** 12 (ACTUAL)
- **Why stopped:** Some of the raw materials for the investigational drug are difficult to obtain and expensive.
- **Last updated:** 2024-02-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04176016

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04176016, "Phase I Study of Radiolabeled OTSA101-DTPA in Patients With Relapsed or Refractory Synovial Sarcoma". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT04176016. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*