A Phase I Trial of Af-001 in Patients With Differentiated Thyroid Cancer
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: [211At]NaAt.
- Who it may be relevant to
- Registry conditions: DTC - Differentiated Thyroid Cancer. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Japan
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
A Phase I Trial of the Alpha Particle-emitting Radiopharmaceutical, Af-001, in Patients With Differentiated Thyroid Cancer
Overview
This trial consists of 2 parts, i.e., Part Ia and Ib. The Part Ia is to evaluate the safety and tolerability of a single intravenous dose of af-001 in patients with radically unresectable, recurrent, metastatic differentiated thyroid cancer (papillary carcinoma, follicular carcinoma) refractory to or intolerant of standard-of-care therapy, who have received total thyroidectomy, and to determine the MTD (Maximum tolerated dose). Part Ib is to evaluate the efficacy and safety of af-001 mutiple doses to patients with radically unresectable, recurrent, metastatic differentiated thyroid cancer (papillary carcinoma, follicular carcinoma), who have received total thyroidectomy and are RAI naïve, randomized into two arms at the determined MTD or the MTD-1 dose level, and to determine the recommended Phase II dose (RP2D)
Detailed description
The Part Ia is a dose escalation part. The Part Ib is a parallel-group comparative study part based on the MTD determined in Part Ia, in which 10 patients each will be randomly assigned to one of two treatment arms, at the MTD for af-001 or the MTD-1 dose level. Patients will be randomly assigned by the enrollment system (allocated at a ratio of 1:1). Random assignment will be performed using the stratified permuted block method. The stratification factor will be the site(s) of metastases.
Interventions
- Drug [211At]NaAt
MTD or MTD-1 level to be tested
Primary outcome measures
- Ph1a: DLT (Dose-limiting toxicity ) based on Japanese translation of the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0, Japan Clinical Oncology Group (JCOG) version [Time frame: 4 weeks]
- Ph1b: Assessment of tumor reduction effect on MRI or CT scan images [Time frame: 24 weeks]
Eligibility criteria
Inclusion criteria
<Ia part>
- Patients with differentiated thyroid cancer (papillary carcinoma, follicular carcinoma) after total thyroidectomy.
- Patients with radically unresectable, recurrent, metastatic disease who are judged by the principal investigator or sub-investigator (hereinafter, "principal/sub-investigators") to be refractory to or intolerant of standard-of-care therapy.
<Ib part>
- Patients with radically unresectable, recurrent, metastatic disease who are RAI naive
- Patients with measurable lesions. <Ia/Ib part>
- Patients with an Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0 to 2 and stable general condition.
- Patients expected to survive for at least 6 additional months based on clinical symptoms and physical examination findings.
Exclusion criteria
<Ia/Ib part>
- Patients who need to preserve fertility.
- Females who are pregnant or may be pregnant, breastfeeding patients, or patients or their partners who cannot agree to appropriate contraception.
- Patients with active multiple cancers (synchronous multiple cancers and ectopic double cancers with a disease-free period of <=3 years).
- Patients with uncontrolled active infections.
- Patients who are positive for hepatitis B virus surface (HBs) antigen, hepatitis C virus (HCV) antibodies, or human immunodeficiency virus (HIV) antibodies.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- N/A
- Model
- Single group
- Masking
- Open label
- Primary purpose
- Treatment
Study locations
Japan · 1 center
- National Cancer Center Hospital East — Kashiwa
Identifiers
NCT: NCT07287748 · af-001TH · jRCT2031250472