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IMRT Followed by Pembrolizumab in the Adjuvant Setting in Anaplastic Cancer of the Thyroid (IMPAACT): Phase II Trial Adjuvant Pembrolizumab After IMRT in ATC

NCT05059470 · Status: TERMINATED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 6

Last updated 2026-03-23

Study results available
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Summary

This is an open label, single center, phase 2 trial of adjuvant pembrolizumab after external beam radiation to the primary tumor in patients with stage IVB (disease localized to the neck) ATC. This drug trial will estimate the median progression-free survival (PFS) (from the start of adjuvant pembrolizumab until locoregional progression, development of distant metastatic disease, or death) in stage IVB ATC patients with gross disease, treated with external beam radiation (+/- concomitant chemotherapy) followed by adjuvant pembrolizumab. Patients will be patients enrolled from cohort 1 and 2 (cohort 1: ≥51 Gy; cohort 2: ≤50 Gy).

Conditions

  • Thyroid

Interventions

DRUG

Pembrolizumab

Given by IV

Sponsors & Collaborators

  • M.D. Anderson Cancer Center

    lead OTHER

Principal Investigators

  • Maria Cabanillas, MD · M.D. Anderson Cancer Center

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-02-11
Primary Completion
2025-07-01
Completion
2025-07-01
FDA Drug
Yes

Countries

  • United States

Study Locations

More Related Trials

Entities

Drugs

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05059470 on ClinicalTrials.gov