PDR001 Combination Therapy for Radioiodine-Refractory Thyroid Cancer
Phase II Study of PDR001 in Combination With MAPK Pathway Inhibitors in Patients With Radioiodine-Refractory Thyroid Cancer
1 other identifier
interventional
19
1 country
7
Brief Summary
The purpose of this study is to find out whether a drug called PDR001, combined with either trametinib or dabrafenib, is a safe and effective treatment for thyroid cancer.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_2
Started Sep 2020
Longer than P75 for phase_2
7 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 2, 2020
CompletedFirst Submitted
Initial submission to the registry
September 3, 2020
CompletedFirst Posted
Study publicly available on registry
September 10, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 2, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
September 2, 2026
October 7, 2025
October 1, 2025
6 years
September 3, 2020
October 6, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Overall response rate
The primary endpoint is to determine the overall response rate (ORR=CR+PR) as documented by RECIST v1.1 criteria within each cohort.
1 year
Study Arms (2)
Cohort A-BRAF WT tumors
EXPERIMENTALCohort A (BRAF WT tumors): trametinib (T) 2mg by mouth daily plus PDR001 400mg IV every 4 weeks
Cohort B-BRAF Mutant
EXPERIMENTALCohort B (BRAF Mutant, resistant to previous BRAF inhibitors): dabrafenib (D) 150 mg twice daily (OR at dose the patient previously tolerated) plus PDR001 400mg IV every 4 weeks.
Interventions
2mg by mouth daily \*If patient loses the ability to swallow while on study, trametinib may be provided as a powder in bottle for reconsititution. Trametinib, as a powder in bottle, will be mixed with sterile/purified water into an oral solution and administered PO or through enteral feeding tube
Eligibility Criteria
You may qualify if:
- Cohort A Only: Confirmation in a CLIA certified laboratory that one of the patient's thyroid tumors (primary tumor, recurrent tumor, or metastases) does not possess a BRAFV600- mutation (non-V600- BRAF mutations, including BRAF translocations, may be included in this cohort).
- Cohort A Only: Evidence of progressive disease (e.g. presence of new or growing lesion(s) on radiologic imaging and/or new or worsening tumor-related symptoms) within 14 months of study enrollment
- Cohort B Only: Confirmation in a CLIA certified laboratory that one of the patient's thyroid tumors (primary tumor, recurrent tumor, or metastases) possesses a BRAFV600- mutation (e.g. V600E, V600K, V600D).
- Cohort B Only: Patients must have documented progression (evidence of tumor growth or appearance of new tumor) on prior BRAF directed therapy (e.g. (but not limited to) vemurafenib, dabrafenib) and must have tolerated this therapy without \> Grade 3 toxicity on their most recent evaluation (excluding Grade 4 asymptomatic laboratory abnormalities).
- Patients must have pathologically or cytologically confirmed differentiated thyroid cancer of follicular origin (including papillary thyroid carcinoma, follicular thyroid carcinoma, hurthle cell carcinomas, poorly differentiated thyroid carcinoma and their respective variants).
- Patients must have RECIST v1.1 measurable disease.
- Patients must have recurrent or metastatic disease not amenable to curative surgery or radiation.
- Age \> 18 years.
- ECOG performance status of 0 or 1.
- Patients must have no recent treatment for thyroid cancer as defined as:
- No prior RAI therapy is allowed \<6 months prior to initiation of therapy on this protocol. A diagnostic study using \<10 mCi of RAI is not considered RAI therapy
- No external beam radiation therapy \<4weeks prior to initiation of therapy on this protocol.
- No chemotherapy or targeted therapy (e.g., tyrosine kinase inhibitor) is allowed \<4 weeks prior to the initiation of therapy on this protocol (an exception to this are patients on dabrafenib who will be enrolling into Cohort B). Dabrafenib may be continued prior to and through trial enrollment into the start of the study therapy when PDR001 will be added to dabrafenib
- RAI-refractory disease on structural imaging, defined as one of the following:
- Total lifetime dose of radioiodine \> 600 mCi
- +17 more criteria
You may not qualify if:
- Cohort A Only:
- Patients with the following ophthalmological finding/conditions:
- Intraocular pressure \>21 mmHg, or uncontrolled glaucoma (irrespective of intraocular pressure).
- Current or past history of central serous retinopathy or retinal vein occlusion.
- Cohort A Only: Prior therapy with a MEK 1/2 targeted drug (with the exception of patients who received this therapy for a defined period of time to enhance radioiodine activity).
- Symptomatic metastatic brain or leptomeningeal tumors (asymptomatic or treated metastatic brain or leptomeningeal tumors are allowed).
- Prior therapy directed at the PD1/PD-L1 axis.
- Any of the following cardiovascular risks:
- A QT interval corrected for heart rate using the Bazett's formula QTcB ≥ 480 msec.
- Clinically significant uncontrolled arrhythmias (Exception: patients with controlled atrial fibrillation for \>30 days prior to enrollment are eligible).
- Acute coronary syndromes (including myocardial infarction and unstable angina), coronary angioplasty, or stenting within 6 months of enrollment.
- ≥ Class II congestive heart failure as defined by the New York Heart Association (NYHA) functional classification system.
- Treatment-refractory hypertension defined as a blood pressure of systolic \>140 mmHg and/or diastolic \>90 mmHg which cannot be controlled by anti-hypertensive therapy.
- Prior malignancy if treated within 2 years of trial drug initiation (with the exception of non-melanoma skin cancers). Patients may be included if they have completed therapy for a prior malignancy \>2 years prior to drug initiation and are currently NED.
- Use of any live vaccines against infectious diseases within 4 weeks of initiation of study treatment.
- +15 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (7)
Memorial Sloan Kettering Basking Ridge (Limited Protocol Activities)
Basking Ridge, New Jersey, 07920, United States
Memorial Sloan Kettering Monmouth (Limited protocol activities)
Middletown, New Jersey, 07748, United States
Memorial Sloan Kettering Bergen (Limited Protocol Activities)
Montvale, New Jersey, 07645, United States
Memorial Sloan Kettering Cancer Center @ Suffolk - Commack (Limited Protocol Activities)
Commack, New York, 11725, United States
Memorial Sloan Kettering Westchester (Limited protocol activities)
Harrison, New York, 10604, United States
Memorial Sloan Kettering Cancer Center (All Protocol Activities)
New York, New York, 10065, United States
Memorial Sloan Kettering Nassau (Limited protocol activities)
Rockville Centre, New York, 11553, United States
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Alan L Ho, MD, PhD
Memorial Sloan Kettering Cancer Center
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
September 3, 2020
First Posted
September 10, 2020
Study Start
September 2, 2020
Primary Completion (Estimated)
September 2, 2026
Study Completion (Estimated)
September 2, 2026
Last Updated
October 7, 2025
Record last verified: 2025-10
Data Sharing
- IPD Sharing
- Will share
Memorial Sloan Kettering Cancer Center supports the international committee of medical journal editors (ICMJE) and the ethical obligation of responsible sharing of data from clinical trials. The protocol summary, a statistical summary, and informed consent form will be made available on clinicaltrials.gov when required as a condition of Federal awards, other agreements supporting the research and/or as otherwise required. Requests for deidentified individual participant data can be made beginning 12 months after publication and for up to 36 months post publication. Deidentified individual participant data reported in the manuscript will be shared under the terms of a Data Use Agreement and may only be used for approved proposals. Requests may be made to: crdatashare@mskcc.org.