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177Lu-DOTA-TLX591

Phase 2

Prostate Cancer | Monoclonal antibody | Oncology |Telix Pharmaceuticals Limited|Last Updated: Dec 19, 2024

Success Probability

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Trial Design

UNCONTROLLEDDMC
Total Trials1
Total Enrollment5

FDA Designations

No designations recorded

Clinical trial landscape

177Lu-DOTA-TLX591 · 2 trials · 2 indications

Phase 2 1Phase 1 1
NCT05146973External Beam Therapy With Theranostic Radioligand Therapy for Oligometastatic Prostate Cancer (ProstACT TARGET)Prostate Cancer
COMPLETED5 Analytics
PHASE2COMPLETED
External Beam Therapy With Theranostic Radioligand Therapy for Oligometastatic Prostate Cancer (ProstACT TARGET)
Prostate CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

To determine Prostate Specific Antigen Progression Free Survival (PSA PFS)
Through study completion, up to 2 years

The time from enrolment to time of PSA increase greater than 25%

Number of Participants With Treatment-Related Adverse Events as Assessed by CTCAE v5.0
Day 1 to 5 years

To monitor the safety and tolerability of molecularly targeted radiotherapy with 177Lu-DOTA-TLX591, administered in two cycles in combination with best SoC in patients with PSMA-expressing metastatic castrate resistant prostate cancer. Treatment emergent adverse events (TEAE) will be classified according to MedDRA (Medical Dictionary for Regulatory Activities), frequency, severity according to NCI CTCAE V5.0, seriousness, and relationship of study treatment will be assessed. Laboratory abnormalities will be assessed according to the NCI CTCAE v.5.0.

Secondary Endpoints

Whole body and organ uptake of 177Lu-DOTA-TLX591
Day 1 to Day 15
Compare the whole body and organ uptake of 177Lu-TLX591 and 68Ga-PSMA-11 radioactive tracers
Day 1 to 15
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Single administration of 177Lu-DOTA-TLX591EXPERIMENTALTwo single IV infusions of 76 mCi (2.8 GBq) each (equivalent to a 45 mCi/m2 administered activity in a standard 1.7m2 individual) of 177Lu-DOTA-TLX591, given 14 days apart.

Interventions

NameTypeDescription
177Lu-DOTA-TLX591BIOLOGICALTLX591, a monoclonal antibody conjugated with a DOTA chelator and radiolabelled with 177Lu (177Lu-DOTA-TLX591)
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Eligibility Criteria

Age Range18 Years to N/A
SexMALE
Healthy VolunteersNo
Study Sites4

Inclusion Criteria: * Signed Informed Consent Form * Male, aged ≥ 18 years * Estimated life expectancy of at least 6 months * Eastern Cooperative Oncology Group (ECOG) score 0 - 2 * Biopsy proven prostate adenocarcinoma with Gleason Score 7 or more at primary presentation * Previous Radical Prostat...

Countries:Australia
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Competitive Landscape -Prostate Cancer 254 trials

Frequently asked questions about 177Lu-DOTA-TLX591

What is 177Lu-DOTA-TLX591 used for?

177Lu-DOTA-TLX591 is an investigational radioligand therapy being studied for the treatment of prostate cancer, including metastatic prostate cancer. It is a monoclonal antibody-based therapy developed by Telix Pharmaceuticals. As of now, it is in clinical development and has not been approved by regulatory authorities.

Who makes 177Lu-DOTA-TLX591?

177Lu-DOTA-TLX591 is being developed by Telix Pharmaceuticals Limited, a biopharmaceutical company. Telix is focused on the development of diagnostic and therapeutic radiopharmaceuticals. The company's ticker symbol is TLX.

What phase is 177Lu-DOTA-TLX591 in?

177Lu-DOTA-TLX591 is in Phase 1 clinical development. A Phase 1 study has been completed, and a Phase 2 study has also been completed. The drug is investigational and has not received regulatory approval for any indication.

What clinical trials is 177Lu-DOTA-TLX591 in?

177Lu-DOTA-TLX591 has been studied in two clinical trials. The first, NCT04786847, was a Phase 1 safety, biodistribution, and dosimetry study in patients with metastatic prostate cancer. The second, NCT05146973, was a Phase 2 study combining external beam therapy with radioligand therapy for oligometastatic prostate cancer.

How does 177Lu-DOTA-TLX591 work?

177Lu-DOTA-TLX591 is a radioligand therapy that combines a monoclonal antibody with the radioactive isotope lutetium-177. The antibody component is designed to target prostate-specific membrane antigen (PSMA), which is expressed on prostate cancer cells, delivering radiation directly to the tumor.