Tracer library / [177Lu]Lu-PSMA-I&T
Structure of PSMA-I&T (unlabelled parent compound, from PubChem)
Unlabelled parent compoundPubChem CID 156596528

[177Lu]Lu-PSMA-I&T

Also written as [177Lu]Lu-PSMA-I&T
Radionuclide
Lu-177 t½ 9585 min
Modality
Therapy
Production route
—
Stage
Clinical research
Syntheses indexed
20

What it is

Compound class
Radiolabelled PSMA-targeting urea-based peptidomimetic (I&T = imaging-and-therapy ligand)
Target / mechanism
Prostate-specific membrane antigen (PSMA) PMID 26089548
Clinical application
PSMA-targeted radioligand therapy in metastatic castration-resistant prostate cancer PMID 26089548
Theranostic pair
[68Ga]Ga-PSMA-I&T

Regulatory status

FDA
No FDA (Drugs@FDA/openFDA): no PSMA-I&T product found (distinct from the approved PSMA-617/vipivotide and PSMA-11/gozetotide products)
EMA (centralised)
No EMA medicines register export (2026-09-09): no 'PSMA-I&T' entry
Other approvals
—
Brand names
—

Published syntheses

ModuleCassettePurificationYield %RCP %Precursor / supplierSource
Modular-Lab EAZY
Eckert & Ziegler
vendor cassettenone96.3 ± 2.1
synthesis no. 2-4
—PSMA-I&T
piCHEM, Raaba-Grambach, Austria
37233924
2023 EJNMMI Radiopharm Chem
ModularLab EAZY (Eckert & Ziegler Eurotope GmbH, Berlin, Germany) - we increased the balanced radiochemical yield from 78 to 96.3% ± 2.1% (synthesis no. 2–4)
—
Elysia-Raytest
vendor cassettenone97.2 ± 2.4%
not corrected
99.3 ± 0.6%PSMA-I&T ligand
ITM
42154134
2026 EJNMMI Radiopharm Chem
The [177Lu]Lu-PSMA I&T was produced using Elysia-Raytest's GAIA/LUNA synthesis modules. - a radiochemical yield of 97.2 ± 2.4% (without decay correction) was obtained
——HPLC95%93-95%PSMA I&T
Technical University Munich
27162555
2016 Theranostics
—vendor cassettenone97.2 ± 2.4%
not corrected
99.3 ± 0.6%PSMA I&T
ITM
42154134
2026 EJNMMI Radiopharm Chem
The [177Lu]Lu-PSMA I&T was produced using Elysia-Raytest's GAIA/LUNA synthesis modules. - a radiochemical yield of 97.2 ± 2.4% (without decay correction) was obtained
——none>97%50%
70%, 97%
PSMA-I&T41474511
2025 EJNMMI Radiopharm Chem
iPHASE MultiSyn
iPHASE Technologies
vendor cassette—99% ± 3%
not corrected
94.3 ± 0.9%
0h HPLC
PSMA-I&T
Huayi
40696084
2025 EJNMMI Radiopharm Chem
This process was automated using an iPHASE MultiSyn radiochemistry module with sterile kits affording sterile and apyrogenic 177Lu-labeled radiopharmaceuticals in non-decay corrected yields > 95%. - a yield of 99% ± 3%.
Manual synthesis———>95%PSMA-I&T
ABX
40147849
2025 J Nucl Med
Radiolabeling of the DOTA compounds was done at 85°C for 25 min, using ascorbic acid buffer and no-carrier-added [177Lu]LuCl3
Manual synthesis————PSMA-I&T precursor
ABX
40049746
2025 J Nucl Med
All radiopharmaceuticals were radiolabeled, formulated, and quality-controlled using optimized versions of previously described methods (15).
Manual synthesis————PSMAI&T
Center of Molecular Research, Moscow, Russia
39771514
2024 Pharmaceutics
The synthesis was carried out in Eppendorf Safe-Lock tubes (1.5, 2.0, or 5 mL) at temperatures of 24.5 (RT), 50, 75, 82, and 95 °C with Eppendorf ThermoMixer® C (Hamburg, Germany).
Scintomics GRP / GRP-3V
Scintomics
vendor cassette—>95%>95%PSMA-I&T38378689
2024 Breast Cancer Res
a cassette synthesizer type GRP 3 V (Scintomics, Germany) was used - Radiochemical purities and yields were > 95% (measured with radio-HPLC).
Modular-Lab PharmTracer
Eckert & Ziegler
vendor cassette——>95%PSMAI&T
Scintomics, Fürstenfeldbruck, Germany
38067427
2023 Molecules
Radiosyntheses were performed on a Modular-Lab PharmTracer (Eckert & Ziegler GmbH, Berlin, Germany) using the corresponding single-use disposable cassettes.
Modular-Lab EAZY
Eckert & Ziegler
vendor cassettenone96.3 ± 2.1—PSMA-I&T
piCHEM, Raaba-Grambach, Austria
37233924
2023 EJNMMI Radiopharm Chem
All three radiopharmaceuticals were successfully synthesized in high radiochemical purities and yields on the ML Eazy. - we increased the balanced radiochemical yield from 78 to 96.3% ± 2.1% (synthesis no. 2–4)
Modular-Lab PharmTracer
Eckert & Ziegler
vendor cassetteSPE—96.9 ± 0.5%PSMA I&T
piCHEM, Raaba-Grambach, Austria
36971890
2023 EJNMMI Radiopharm Chem
[177Lu]Lu-PSMA I&T was prepared using an automated cassette based synthesis module (PharmTracer, Modular Lab, Eckert&Ziegler, Berlin, Germany)
Scintomics GRP / GRP-3V
Scintomics
vendor cassettenone——PSMA-I&T
ABX
36166155
2022 EJNMMI Radiopharm Chem
[177Lu]Lu-PSMA-I&T and [177Lu]Lu-PSMA-617 was produced with a Scintomics GRP module
Manual synthesis——96.8 ± 0.9%<95%
in 24 h
PSMA-I&T
ABX
35807385
2022 Molecules
For the radiolabeling of [177Lu]Lu-PSMA-I&T, a manual synthesis was used. - A typical synthesis time for the complexation reaction yielding [177Lu]Lu-PSMA I&T in 60 min with a radiochemical yield of 96.8 ± 0.9% (n = 5).
Manual synthesis———>95%PSMA I&T precursor35086894
2022 J Nucl Med
177Lu labeling of PSMA ligands according to standard manual procedures resulted in a radiochemical purity of more than 95%
Manual synthesis——>98>98PSMA-I&T
piCHEM, Raaba-Grambach, Austria
34932154
2022 Eur J Nucl Med Mol Imaging
For the biodistribution study, 18 µg PSMA ligand (15 nmol PSMA-617, 12 nmol PSMA-I&T) was added to 0.5 M MES buffer, pH 5.5, and 33 MBq [177Lu]LuCl3 - Radiolabeling of PSMA-617 and PSMA-I&T with [177Lu]LuCl3 resulted in radiochemical yield of > 98%
Manual synthesis——>95%>90%PSMA-I&T
Prof. Dr. Hans-Jürgen Wester, Technische Universität München
33094433
2021 Eur J Nucl Med Mol Imaging
Labeling of PSMA-617, PSMA-I&T, and JVZ-007 was performed as previously described - For all labelings, the radiochemical yield was > 95% and the radiochemical purity was > 90%.
miniAllinOne
Trasis
————PSMA-I&T32374450
2020 J Labelled Comp Radiopharm
using the same synthesis module
———98%—PSMA-I&T40425733
2026 Nat Protoc

Clinical literature

Clinical studies in the indexed corpus, ordered by design (multicentre, prospective, retrospective, others, case reports last) and then by year. Titles and links only, as published; this is not a summary of the evidence.

  1. Lutetium-177-PSMA-I&T as metastases directed therapy in oligometastatic hormone sensitive prostate cancer, a randomized controlled trial.
    2020 · BMC Cancer · Prospective, multicentre
  2. Comparison of Posttherapy 4- and 24-Hour [177Lu]Lu-PSMA SPECT/CT and Pretherapy PSMA PET/CT in Assessment of Disease in Men with Metastatic Castration-Resistant Prostate Cancer.
    2024 · J Nucl Med · Prospective
  3. A standardised attenuated dosing of 177 lutetium-prostate-specific membrane antigen therapy for patients with metastatic castration-resistant prostate carcinoma and preexisting renal impairment.
    2026 · Nucl Med Commun · Retrospective
  4. Prognostic 18F-flotufolastat PET parameters for outcome assessment of 177Lu-labeled PSMA-targeted radioligand therapy in metastatic castration-resistant prostate cancer.
    2025 · Eur J Nucl Med Mol Imaging · Retrospective
  5. Efficacy and safety of rechallenge with [177Lu]Lu-PSMA-I&T radioligand therapy in metastatic castration resistant prostate cancer.
    2024 · Eur J Nucl Med Mol Imaging · Retrospective
  6. Outcomes and prognostic predictors of Lu-177 PSMA radioligand therapy in metastatic castration-resistant prostate cancer (Asian Population Study).
    2024 · Asia Pac J Clin Oncol · Retrospective
  7. Baseline clinical characteristics predict overall survival in patients undergoing radioligand therapy with [177Lu]Lu-PSMA I&T during long-term follow-up.
    2022 · Eur J Nucl Med Mol Imaging · Retrospective
  8. Modeling and Predicting Tumor Response in Radioligand Therapy.
    2019 · J Nucl Med · Retrospective
  9. [177Lu]Lu-PSMA SPECT/CT for early response assessment using quantitative RECIP 1.0.
    2026 · Eur J Nucl Med Mol Imaging · Clinical study
  10. Radioligand treatment with [177Lu]Lu-PSMA I&T in elderly Patients - Safety, efficacy, and prognostic factors for survival.
    2026 · Eur J Nucl Med Mol Imaging · Clinical study
Show all 18 clinical studies
  1. Rapid Tumor Washout of 177 Lu-PSMA Radioligand in Renal Cell Carcinoma.
    2023 · Clin Nucl Med · Clinical study
  2. Costs of radium-223 and the pharmacy preparation 177Lu-PSMA-I&T for metastatic castration-resistant prostate cancer in Dutch hospitals.
    2023 · J Med Econ · Clinical study
  3. Biodistribution and dosimetry for combined [177Lu]Lu-PSMA-I&T/[225Ac]Ac-PSMA-I&T therapy using multi-isotope quantitative SPECT imaging.
    2023 · Eur J Nucl Med Mol Imaging · Clinical study
  4. Factors affecting overall survival and progression-free survival in patients with metastatic castration resistant prostate cancer received 177Lu PSMA I&T therapy.
    2020 · Hell J Nucl Med · Clinical study
  5. The use of molecular volumetric parameters for the evaluation of Lu-177 PSMA I&T therapy response and survival.
    2019 · Ann Nucl Med · Clinical study
  6. The Effect of Total Tumor Volume on the Biologically Effective Dose to Tumor and Kidneys for 177Lu-Labeled PSMA Peptides.
    2018 · J Nucl Med · Clinical study
  7. 68Ga- and 177Lu-Labeled PSMA I&T: Optimization of a PSMA-Targeted Theranostic Concept and First Proof-of-Concept Human Studies.
    2015 · J Nucl Med · Clinical study
  8. Rapid Lymphatic Clearance After Subcutaneous Extravasation of 177 Lu-PSMA-I&T Radioligand Therapy.
    2026 · Clin Nucl Med · Case report

Precursor

Common precursor
PSMA-I&T PMID 37233924 (DOI 10.1186/s41181-023-00196-1)
Suppliers seen in the literature
piCHEM (Raaba-Grambach, Austria)
Cited suppliers in indexed syntheses
ABX, Center of Molecular Research, Huayi, ITM, Prof. Dr. Hans-Jürgen Wester, Scintomics, Fürstenfeldbruck, Technical University Munich, piCHEM
Typical final purification
none (direct sterile filtration, no chromatographic step)

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Quality control Derived from the published synthesis

Ph. Eur. monograph
not verified No Ph. Eur. check is recorded for this entry.
USP monograph
not verified No USP check is recorded for this entry.
AppearancepHRCP HPLCHPLC UVRadionuclidic (HPGe)Half-lifeActivityEndotoxins (LAL)SterilityFilter integrityOsmolalityMolar activityMetal impuritiesLu-177m
How this set was arrived at. base set per Ph. Eur. general monograph 0125 (rule); radiometal tracer -> metal impurities (rule); Lu-177 preparation -> Lu-177m content (rule); therapeutic radiopharmaceutical -> osmolality (rule); receptor ligand with a saturable target -> molar activity (rule)

Tests listed by reference only. Monograph texts are copyrighted and are not reproduced here. How these are derived

Setting up quality control?We can help you scope the equipment needed to release [177Lu]Lu-PSMA-I&amp;T.

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Notes

Added from reverse module search (stage 6); 10 article(s) with Lu-177. | Stage 30 (2026-09-18): Stage was 'Investigational / clinical (academic use)'; normalised to 'Clinical research', original wording kept here.
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