Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 23, 2026, 3:24 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–3 of 3 matching trials from the live ClinicalTrials.gov search.
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Conditions
Hematologic Malignancies, Solid Tumor
Interventions
PF-0791800 (TTI-621), PF-07901800 (TTI-621) plus Rituximab, PF-07901800 (TTI-621) plus Nivolumab
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
249 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
47
States / cities
Duarte, California • Palo Alto, California • Denver, Colorado + 15 more
Conditions
Leiomyosarcoma
Interventions
Ontorpacept (TTI-621), Doxorubicin
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
23
States / cities
Santa Monica, California • Jacksonville, Florida • Tampa, Florida + 16 more
Conditions
Solid Tumors, Mycosis Fungoides, Melanoma, Merkel-cell Carcinoma, Squamous Cell Carcinoma, Breast Carcinoma, Human Papillomavirus-Related Malignant Neoplasm, Soft Tissue Sarcoma
Interventions
TTI-621 Monotherapy, TTI-621 + PD-1/PD-L1 Inhibitor, TTI-621 + pegylated interferon-α2a, TTI-621 + T-Vec, TTI-621 + radiation
Drug · Other
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
7
States / cities
Duarte, California • New York, New York • Portland, Oregon + 3 more