Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Withdrawn Phase 1 Interventional

A CD8 Positron Emission Tomography With Computed Tomography (PET/CT) Study Using ⁸⁹Zr Df-IAB22M2C in Patients With Metastatic Melanoma Receiving Bempegaldesleukin (NKTR-214) and Nivolumab

ClinicalTrials.gov ID: NCT04955262

Public ClinicalTrials.gov record NCT04955262. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 22, 2026, 3:36 AM EDT

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

Official title

A Phase 1b, Open Label, Multicenter Study of Positron Emission Tomography With Computed Tomography (PET/CT) Using ⁸⁹Zr Df-IAB22M2C (CD8 PET/CT Tracer) in Patients With Metastatic Melanoma Receiving Bempegaldesleukin (NKTR-214) and Nivolumab

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The main purpose of this study is to investigate the utility of the new investigational imaging agent ⁸⁹Zr Df-IAB22M2C (CD8 PET/CT tracer) to monitor CD8 T-cell expansion and trafficking within tumors and associated tissues in patients with metastatic melanoma undergoing treatment with bempegaldesleukin and nivolumab as a single agent and in combination.

Study identification

NCT ID
NCT04955262
Recruitment status
Withdrawn
Study type
Interventional
Phase
Phase 1
Lead sponsor
Nektar Therapeutics
Industry
Enrollment
Not listed

Conditions and interventions

Interventions

Biological · Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Aug 2019 (Estimated)
Primary completion
Jun 2021 (Estimated)
Completion
Jan 2022 (Estimated)
Last update posted
Jul 8, 2021

2019 – 2022

United States locations

U.S. sites
3
U.S. states
3
U.S. cities
3
Facility City State ZIP Site status
Investigational Site - Duarte Duarte California 91010 —
Investigational Site - Portland Portland Oregon 97213 —
Investigational Site - Philadelphia Philadelphia Pennsylvania 19104 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04955262, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jul 8, 2021 · Synced Oct 22, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT04955262 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →