Pembrolizumab in High-risk Thyroid Cancer

NCT05852223 | Recruiting Phase 2 FDA Drug

• 2 other identifiers: NePenThe2021-003524-32
• Study Type: interventional
• Target: 25
• Locations: 1 country
• Sites: 1

Brief Summary

This window of opportunity trial is studying a checkpoint inhibitor agent to treat differentiated thyroid cancer in a neoadjuvant setting. A checkpoint inhibitor is a compound aimed at restoring tumor immunosurveillance. The name of this agent is pembrolizumab.

Conditions

Differentiated Thyroid Cancer

Keywords

differentiated thyroid carcinoma; neoadjuvant treatment; pembrolizumab

Outcome Measures

Primary Outcomes (2)

• To investigate the behavior of exhausted cytotoxic T cell (CD8+ T) in tumor tissue in response to pembrolizumab

  Relative proportion of exhausted CD8+ T cells and their topological relationships to cell clusters in TCs following neoadjuvant pembrolizumab assessed by "Spatial-transcriptomic" sequencing

  Up to 12 months after surgery

• To investigate the behavior of exhausted cytotoxic T cell (CD8+ T) at circulating level in response to pembrolizumab

  Relative proportion of exhausted CD8+ T cells and their topological relationships to cell clusters in TCs following neoadjuvant pembrolizumab assessed by single-cell sequencing

  Up to 12 months after surgery

Study Arms (2)

experimental arm A

EXPERIMENTAL

N° 20 patients: patients will receive pembrolizumab 200 mg Every Three Weeks (Q3W) for 2 courses, followed by thyroidectomy +/- radioiodine according to the risk class

Drug: Pembrolizumab

control group B

NO INTERVENTION

N° 5 patients: patients will be treated for clinical practice with upfront thyroidectomy followed by +/- radioiodine according to the risk class

Interventions

Pembrolizumab DRUG

Neoadjuvant pembrolizumab 200mg Q3W will be administered via IV infusion for 2 courses from the date of randomization until to the date of thyroidectomy.

experimental arm A

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Male/female participants who are at least 18 years of age on the day of signing informed consent with histologically confirmed diagnosis of differentiated thyroid carcinoma candidate to surgery not previously treated will be enrolled in this study.
• Patients with a risk \> 20% for persistent/recurrent disease: primary tumor \> 4 cm; multifocal papillary microcarcinoma with extra tumor extension (ETE) and known BRAF V600E mutation; clinical N1; gross ETE (macroscopic invasion of perithyroidal soft tissues); extranodal extension; expected incomplete tumour resection.
• Poorly differentiated carcinoma; Hurtle cell carcinoma.
• Patients with distant metastasis at diagnosis.
• The participant (or legally acceptable representative if applicable) provides written informed consent for the trial.
• Have measurable disease based on RECIST 1.1.
• Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1. Evaluation of ECOG is to be performed within 7 days prior to the date of allocation/randomization.
• Have adequate organ function as defined in the following table (Table 2) Specimens must be collected within 10 days prior to the start of study treatment.
• Male participants:
• A male participant must agree to use a contraception as detailed in Appendix 3 of this protocol during the treatment period and for at least 6 months (e.g. 5 terminal half-lives for pembrolizumab) after the last dose of study treatment and refrain from donating sperm during this period.
• female participant is eligible to participate if she is not pregnant, not breastfeeding, and at least one of the following conditions applies:
• Not a woman of childbearing potential (WOCBP).
• a WOCBP who agrees to follow the contraceptive guidance during the treatment period and for at least 4 months after the last dose of study treatment

You may not qualify if:

• A WOCBP who has a positive urine pregnancy test within 72 hours prior to randomization. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required.
• Has received prior therapy with an anti-PD-1, anti-PD-L1, or anti-PD-L2 agent or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (eg, CTLA-4, OX-40, CD137).
• Has received prior systemic anti-cancer therapy including investigational agents within 4 weeks prior to randomization.
• Has received prior radiotherapy within 2 weeks of start of study intervention. Participants must have recovered from all radiation-related toxicities, not require corticosteroids, and not have had radiation pneumonitis. A 1-week washout is permitted for palliative radiation (≤2 weeks of radiotherapy) to non-CNS disease.
• Has received a live vaccine within 30 days prior to the first dose of study drug. Examples of live vaccines include, but are not limited to, the following: measles, mumps, rubella, varicella/zoster (chicken pox), yellow fever, rabies, Bacillus Calmette-Guérin (BCG), and typhoid vaccine. Seasonal influenza vaccines for injection are generally killed virus vaccines and are allowed; however, intranasal influenza vaccines (eg, FluMist®) are live attenuated vaccines and are not allowed. Administration of killed vaccines is allowed.
• Is currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks prior to the first dose of study intervention.
• Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy (in dosing exceeding 10 mg daily of prednisone equivalent) or any other form of immunosuppressive therapy within 7 days prior to the first dose of study drug.
• Has a history of a second malignancy, unless potentially curative treatment has been completed with no evidence of malignancy for 2 years. The time requirement does not apply to participants who underwent successful definitive resection of basal cell carcinoma of the skin, squamous cell carcinoma of the skin, superficial bladder cancer, in situ cervical cancer, or other in-situ (eg, breast carcinoma or cervical cancer in situ that have undergone potentially curative therapy are not excluded).
• Has known active CNS metastases and/or carcinomatous meningitis. Participants with previously treated brain metastases may participate provided they are radiologically stable, i.e. without evidence of progression for at least 4 weeks by repeat imaging (note that the repeat imaging should be performed during study screening), clinically stable and without requirement of steroid treatment for at least 14 days prior to first dose of study intervention.
• Has severe hypersensitivity (≥Grade 3) to pembrolizumab and/or any of its excipients.
• Has active autoimmune disease that has required systemic treatment in the past 2 years (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive drugs). Replacement therapy (eg., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment and is allowed.
• Has a history of (non-infectious) pneumonitis/interstitial lung disease that required steroids or has current pneumonitis/interstitial lung disease
• Has an active infection requiring systemic therapy.
• History of Human Immunodeficiency Virus (HIV) infection.
• History of Hepatitis B (defined as Hepatitis B surface antigen \[HBsAg\] reactive) or known active Hepatitis C virus (defined as HCV RNA is detected) infection. Note: no testing for Hepatitis B and Hepatitis C is required unless mandated by local health authority.

Sponsors & Collaborators

• Istituti Clinici Scientifici Maugeri SpA: lead
• Merck Sharp & Dohme LLC: collaborator

Study Sites (1)

Istituti Clinici Scientifici Maugeri

Pavia, Lombardy, 27100, Italy

RECRUITING

MeSH Terms

Interventions

pembrolizumab

Study Officials

• Laura D Locati, MD, PhD

  Istituti Clinici Scientifici Maugeri

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Serena Barbaro, M.Sc.

CONTACT

+39 (0)3982592326; CTCstaff.pavia@icsmaugeri.it

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: April 26, 2023
• First Posted: May 10, 2023
• Study Start: December 20, 2024
• Primary Completion (Estimated): November 1, 2026
• Study Completion (Estimated): November 1, 2026
• Last Updated: April 20, 2026

Record last verified: 2026-04

Locations

IT (1)