Targeted alpha-emitter therapy (TAT) Archives

Tag: Targeted alpha-emitter therapy (TAT)

Targeted Alpha Therapy is based on the coupling of alpha particle emitting radioisotopes to tumour selective carrier molecules, such as monoclonal antibodies or peptides. These molecules have the ability to selectively target tumour cells even if they are spread throughout the body. They recognize the targeted cancer cells through antigens that are expressed on the cell surface and can bind selectively to these cells, similar a key fitting into a lock. In targeted alpha therapy these carrier molecules serve as vehicles to transport the radioisotopes to the cancer cells. This is called the “magic bullet” approach. Radioisotopes that emit alpha particles seem particularly promising to selectively destroy cancer cells. Alpha particles have a high energy in the range of 5-9 MeV and at the same time a very short path length in human tissue below 0.1 mm, corresponding to less than 10 cell diameters. Consequently, the use of alpha emitters allows the specific targeting and killing of individual malignant cells, while minimizing the toxicity to surrounding healthy tissue. Is thought to be less toxic than regular PRRT using beta particles.

Examples include 212Pb-AR-RMX and 225Ac

Clinical Trials and Research212Pb-AR-RMX, Ac-225, Advanced neuroendocrine cancer, Carcinoid tumour, Incurable cancer, Metastatic Neuroendocrine Cancer, Neuroendocrine, Neuroendocrine cancer, Nuclear medicine, Peptide receptor radionuclide therapy (PRRT), PRRT, Radioimmunotherapy, Radionuclide, Somatostatin analogues, Targeted alpha-emitter therapy (TAT)

Targeted Alpha-emitter Therapy (TAT) – the wave of the future in nuclear oncology/PRRT?

By Ronny Allan Oct 26, 2024 10 Comments

Clinical Trials and Research, Treatment212Pb, 212Pb-AR-RMX, Clinical trial, Peptide receptor radionuclide therapy (PRRT), PRRT, Targeted alpha-emitter therapy (TAT)

FEB 2026 – TRIAL DISCONTINUED Study to Evaluate the Safety and Effectiveness of 212Pb-DOTAMTATE (alpha-emitter) in Subjects With Somatostatin Receptor Positive Neuroendocrine Tumours

By Ronny Allan Apr 10, 2024 1 Comment

A Phase 2 Open Label Study to Evaluate the Safety and Effectiveness of 212Pb-DOTAMTATE (alpha-emitter) in Subjects With Somatostatin Receptor Positive Neuroendocrine Tumours Update 4th February 2026. The company quietly discontinues AlphaMedix. Read more Trial Discontinued Update 2nd November 2025 - NANETS output. Efficacy, Safety of 212Pb-DOTAMTATE in PRRT-Naive Patients With GEP-NETs This is a follow on from the 8th October 2025 update below. Commentary by Dr Mary Maluccio from NOLA NETs. The figures looks great and you can read it or listen to her talking. Click here for that. The phase 3 trials will be PRRT niave patients ony…

Clinical Trials and Research225Ac, Ac-225, Advanced neuroendocrine cancer, Metastatic Neuroendocrine Cancer, Neuroendocrine carcinoma (NEC), Neuroendocrine tumour (NET), Peptide receptor radionuclide therapy (PRRT), PRRT, Small cell lung cancer (SCLC), Targeted alpha-emitter therapy (TAT)

Clinical Trials – Targeted Alpha-Emitter PRRT RYZ101 (Ac225)

By Ronny Allan Sep 14, 2022 0 Comments

Update 11th January 2026 RayzeBio has a new trial with the product RYZ401 entitled Study of RYZ401 in Subjects With Solid Tumors Expressing SSTRs. Click here NCT07165132. The primary objectives are to determine the recommended Phase 2 dose (RP2D) and optimal treatment regimen, characterize safety and tolerability, and evaluate preliminary efficacy of RYZ401 in subjects with NETs and other selected solid tumors expressing SSTRs (meningiomas get a mention in the clinical trial document). This is different to the original product below when this blog was created (now Phase 3 RYZ101) but it also for well differentiated NETs as per clinical trials…

Clinical Trials and Research225Ac, Gastro-entero-pancreatic neuroendocrine tumour (GEP-NET), Peptide receptor radionuclide therapy (PRRT), PRRT, Targeted alpha-emitter therapy (TAT)

Survival Outcomes in Metastatic Gastroenteropancreatic Neuroendocrine Tumor Patients receiving Concomitant 225Ac-DOTATATE Targeted Alpha Therapy and Capecitabine: A Real-world Scenario Management Based Long-term Outcome Study

By Ronny Allan Jul 27, 2022 0 Comments

Introduction I've written about both 225Ac-DOTATATE targeted alpha therapy (TAT) and Capecitabine before but never as a concomitant pair (combo). So, when this Indian study came up on my radar, I felt it was a useful addition to my website adding to my existing targeted alpha therapy portfolio of information. India appears to be using more of this type of PRRT than any other country. Read more about targeted alpha therapy by clicking here or on the photo below. Read more about Capecitabine (combo with Temozolomide) by clicking here or on the photo below. The abstract from the Indian study…

Clinical Trials and Research, Patient Advocacy, Survivorship, TreatmentAdvanced neuroendocrine cancer, Afinitor, Biopsy, Carcinoid syndrome, Carcinoid tumour, Chemotherapy, Diagnosis, Everolimus, Ga68 PET/CT, Immunotherapy, Incurable cancer, Lanreotide, Liver embolization, Lung NETs, Lutathera, Metastatic Neuroendocrine Cancer, NET syndromes, Neuroendocrine cancer, Neuroendocrine carcinoma (NEC), Neuroendocrine neoplasm (NEN), Neuroendocrine tumour (NET), Octreotide, Pancreatic NET (PanNET), Peptide receptor radionuclide therapy (PRRT), Quality of LIfe (QoL), Small intestine NET (SI NET), Somatostatin analogues, Sunitinib (Sutent), Surufatinib, Targeted alpha-emitter therapy (TAT), Targeted therapy

Neuroendocrine Tumors: Targeted Therapies – Update from NET Specialist Diane Reidy-Lagunes, MD, Memorial Sloan-Kettering Cancer Center – August 2021

By Ronny Allan Sep 11, 2021 0 Comments

Background. For those who want a quick run through of Neuroendocrine Tumors from diagnosis to selection of treatment, about the treatments themselves plus what is the Future Directions in the Management of Neuroendocrine Tumors. There are 8 episodes, and each is around 3-5 minutes long. I personally found them very useful and in a language understandable to patients. Great job by OncLive and Dr Reidy-Lagunes! Episode 1 - Understanding the Diagnosis and Prognosis of Neuroendocrine Tumors Diane Reidy-Lagunes, MD, provides an overview of neuroendocrine tumors, along with specific considerations for optimal diagnosis and prognostication. Understanding the Diagnosis and Prognosis of Neuroendocrine Tumors (onclive.com)…

Clinical Trials and Research212Pb, Clinical trial, Neuroendocrine tumour (NET), Peptide receptor radionuclide therapy (PRRT), PRRT, Targeted alpha-emitter therapy (TAT), VMT-𝛼-NET

Clinical Trial: [212Pb]VMT-α-NET Alpha-emitter – Phase 1/2a Clinical Trial

By Ronny Allan May 10, 2021 3 Comments

[212Pb]VMT-α-NET Phase 1/2a Clinical Trial Uupdate 21 June 2025. Perspective Therapeutics Commences Recruitment for [212Pb]VMT-α-NET in the Third Dose Escalation Cohort of its Ongoing Phase 1/2a Clinical Trial June 21, 2025 [212Pb]VMT-α-NET Phase 1/2a study is advancing into Cohort 3 with a fixed administered dose that is up to 20% higher (6 mCi) than the dose administered to patients in Cohort 2 Dosimetry sub-study analysis presented at the Society of Nuclear Medicine & Molecular Imaging (SNMMI) 2025 Annual Meeting to advance utility of dosimetry in clinical development when considered with clinical data On track to submit further clinical updates to…