LOCAMETZ kit for the preparation of gallium Ga 68 gozetotide 25 ug Injection, Powder, Lyophilized, For Solution, 1 vial — NDC 69488-017-61 (Billing 69488-0017-61)
This is a package of 1 vial of LOCAMETZ kit for the preparation of gallium Ga 68 gozetotide 25 ug Injection, Powder, Lyophilized, For Solution from Advanced Accelerator Applications USA, Inc, no longer marketed (first marketed Mar 2022), no longer in the FDA NDC Directory. It is this product's only package size.
NDC database record
One package, one record: these facts belong to NDC 69488-017-61 alone.
- Record
- FDA NDC Directory package listing · Human prescription drug
- Code segments
- 69488 labeler · 017 product · 61 package
- Package marketed since
- Mar 23, 2022
- Sample package
- No — commercial package
- Listing certified through
- Dec 31, 2026
- Billing quantity
- 1 EA per package
- Barcode (UPC-A, from the NDC)
- 3 6948801761 1
- Medicaid fills, this package
- 26 prescriptions in the last four reported quarters
- FDA record last changed
- Jul 2, 2026
Identity & classification
Regulatory identifiers FDA, NLM and CMS codes for this package
Drug-database identifiers Medi-Span GPI and First Databank GCN / HICL / AHFS classification
- GSN (GCN sequence number): 082959
- GCN: 51777
- GPI-14 (Medi-Span): 94356530306420
- HICL (First Databank): 047747
- AHFS class code: 36:00.00.00
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 3, 2026
- RxNorm (NLM RxNav) · catalog refreshed Oct 1, 2026
- Medi-Span GPI (licensed)
- First Databank (licensed) · refreshed Oct 1, 2026
Clinical
Patient education
Supplement & herbal interactions
Where does this data come from?
- MedlinePlus (NLM) · refreshed Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 3, 2026
Ask a licensed pharmacist directly — free, answered by our team.
Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per mL | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | $592.88 | — |
| Medicare drug plans payPart D · quarterly | No Part D plan price is available for this NDC in our data. | |
Where does this data come from?
- CMS NADAC weekly file
- CMS ASP pricing files · refreshed Sep 20, 2026
- CMS Medicaid State Drug Utilization Data · through Q1 2026
- CMS Part D plan pricing files · refreshed Sep 24, 2026
- VA National Acquisition Center price file
Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Marketing end | Status |
|---|---|---|---|---|
| 69488-0017-61 You're viewing this Main listing | 1 VIAL, MULTI-DOSE in 1 CARTON / 1 INJECTION, POWDER, LYOPHILIZED, FOR SOLUTION in 1 VIAL, MULTI-DOSE | 2022-03-23 | — | Discontinued by firm |
Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Locametz 25 ugthis 69488-0017-61 | Advanced | 1 vial | — | — | Discontinued | — |
| Locametz 25 ug 00078-1224-61 | Novartis | 1 vial | — | — | FDA listed | — |
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA Orange Book · refreshed Oct 3, 2026
- CMS NADAC weekly file
Availability & generic status
We did not find an FDA-approved generic match for this exact strength, form and route. Patent/protection dates below may affect future generic timing.
Why the date isn’t exact: Generic timing can change because patents may be challenged, settled, licensed, added, removed, or worked around with a narrower label — and FDA approval does not always mean a pharmacy can get the generic today.
🛈 What do these terms mean?
- Patent
- Legal protection listed in the Orange Book that may delay generic approval or launch. Issued by the U.S. Patent & Trademark Office.
- Substance patent
- Covers the active drug molecule itself — the hardest to design around. A generic generally can’t launch until it expires.
- Formulation (product) patent
- Covers a specific formulation or dosage form. A generic can sometimes work around it with a different formulation.
- Method-of-use patent
- A patent covering one specific approved use of the drug — not necessarily the whole molecule. A generic can sometimes launch with a “skinny label” that carves out the protected use and keeps the others.
- Skinny label
- A generic label that omits a still-patented use when the FDA allows it — letting a generic reach the market for the unprotected uses.
- Exclusivity
- FDA-granted marketing protection, separate from patents — e.g. 5-yr new chemical entity, 7-yr orphan drug, or a +6-month pediatric extension.
- Paragraph IV
- A generic applicant’s formal challenge to a listed patent. It can potentially lead to earlier generic entry, but often involves litigation or a settlement.
- RLD / RS
- Reference Listed Drug — the brand product the FDA uses as the reference for generic applications. Reference Standard — the product the FDA expects generics to compare against in bioequivalence testing.
- TE / AB rating
- FDA therapeutic-equivalence rating. An AB rating generally means the FDA considers a generic therapeutically equivalent to — and substitutable for — the brand.
- LOE (loss of exclusivity)
- The latest patent or exclusivity currently listed — the loss-of-exclusivity / latest-listed-protection date shown on this page. Paragraph-IV challenges and settlements can move the real date earlier; FDA approval and a manufacturer’s decision to market can move it later.
Built from the FDA Orange Book. The bars above are scaled to each protection’s expiry; the red LOE marker is the last one to lapse.
| Patent | Type | Use code | Expires |
|---|---|---|---|
| US 11369590 ↗ | Drug substance | U-3400 | Aug 15, 2028 |
| US 12109277 ↗ | Method of use | U-4002 | Mar 9, 2036 |
Is there a generic version of LOCAMETZ KIT?
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Why are there multiple patent dates?
Where does this data come from?
- FDA Orange Book · refreshed Oct 3, 2026
Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
Where does this data come from?
IACT rows and label-wide narrative are kept separate; availability and product-level specificity depend on the submitted label.- FDA label on DailyMed · label index refreshed Oct 3, 2026
- FDA openFDA NDC Directory · synced Oct 1, 2026
Inactive ingredient FAQ
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Manufacturer & labeler
More NDCs from Advanced Accelerator Applications USA, Inc labeler code 69488
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- Drugs@FDA
Full prescribing information FDA SPL
🎯 Indications and Usage ▾
1 INDICATIONS AND USAGE LOCAMETZ, after radiolabeling with gallium-68, is indicated for positron emission tomography (PET) of prostate-specific membrane antigen (PSMA)-positive lesions in men with prostate cancer: with suspected metastasis who are candidates for initial definitive therapy. with suspected recurrence based on elevated serum prostate-specific antigen (PSA) level. for selection of patients who are indicated for PSMA-directed therapy as described in the prescribing information of the therapeutic products.
LOCAMETZ, after radiolabeling with gallium-68, is a radioactive diagnostic agent indicated for positron emission tomography (PET) of prostate-specific membrane antigen (PSMA)-positive lesions in men with prostate cancer: with suspected metastasis who are candidates for initial definitive therapy with suspected recurrence based on elevated serum prostate-specific antigen (PSA) level for selection of patients who are indicated for PSMA-directed therapy as described in the prescribing information of the therapeutic products.
( 1 )
⏱️ Dosage and Administration ▾
2 DOSAGE AND ADMINISTRATION Use appropriate radiation safety measures and aseptic precautions while handling and administering gallium Ga 68 gozetotide injection. ( 2.1 ) The recommended amount of radioactivity is 111 MBq to 259 MBq (3 mCi to 7 mCi). Administered as slow intravenous injection.
( 2.2 ) Advise patients to be well hydrated prior to the administration and to void immediately prior to and frequently after image acquisition. ( 2.3 ) A diuretic expected to act within the uptake time period may be administered at the time of radiotracer injection. ( 2.6 ) Acquire PET whole body images 50 minutes to 100 minutes after administration.
( 2.7 ) See the full prescribing information for detailed instructions on preparation, administration, imaging, and radiation dosimetry. ( 2 )
2.1Radiation Safety – Drug Handling After reconstitution and radiolabeling of LOCAMETZ, the vial contains gallium Ga 68 gozetotide injection. Handle the gallium Ga 68 gozetotide injection with appropriate safety measures to minimize radiation exposure [see Warnings and Precautions (5.2)] . Use waterproof gloves, effective radiation shielding, and other appropriate safety measures when preparing and handling gallium Ga 68 gozetotide injection.
Radiopharmaceuticals should be used by or under the control of health care providers who are qualified by specific training and experience in the safe use and handling of radionuclides, and whose experience and training have been approved by the governmental agency authorized to license the use of radionuclides.
2.2Recommended Dosage In adults, the recommended amount of radioactivity to be administered for PET is 111 MBq to 259 MBq (3 mCi to 7 mCi) by slow intravenous injection.
2.3Patient Preparation Advise patients to be well hydrated prior to gallium Ga 68 gozetotide injection administration and to void immediately prior to and frequently during the first hours after image acquisition to reduce radiation exposure [see Warnings and Precautions (5.2)] .
2.4Drug Preparation LOCAMETZ allows the direct preparation of gallium Ga 68 gozetotide injection with the eluate from one of the following generators (see below for specific instruction for use with each generator): Eckert & Ziegler GalliaPharm germanium-68/gallium-68 ( 68 Ge/ 68 Ga) generator IRE ELiT Galli Eo germanium-68/gallium-68 ( 68 Ge/ 68 Ga) generator The instructions for use provided by the germanium-68/gallium-68 generator manufacturer should also be followed. Prepare gallium Ga 68 gozetotide injection according to the following aseptic procedure: a.
Use suitable shielding to reduce radiation exposure. b. Wear waterproof gloves. c. Flip the cap off the LOCAMETZ vial and swab the septum with an appropriate antiseptic, then allow the septum to dry. d.
Pierce the LOCAMETZ vial septum with a sterile needle connected to a 0.2-micron sterile air venting filter to maintain atmospheric pressure within the vial during the reconstitution process. e. Place the LOCAMETZ vial in a lead shield container. f. Follow the generator specific procedures below.
Schematic diagrams are provided in Figures 1 and 2. Preparation with Eckert & Ziegler GalliaPharm Generator 1) Connect the male luer of the outlet line of the generator to a sterile elution needle (size 21G to 23G). 2) Connect the LOCAMETZ vial directly to the outlet line of the generator by pushing the elution needle through the rubber septum.
3) Elute directly from the generator into the LOCAMETZ vial. 4) Perform the elution manually or by means of a pump according to the generator instructions for use. 5) Reconstitute the lyophilized powder with 5 mL of eluate.
6) At the end of the elution, disconnect the LOCAMETZ vial from the generator by removing the elution needle and the vent needle with the 0.2-micron sterile air venting filter from the rubber septum. Then, invert LOCAMETZ vial once and place it upright. 7) Incubate the LOCAMETZ vial upright between 20°C to 30°C (68°F to 86°F) for at least 5 minutes wi… [Excerpted — this section continues on DailyMed.]
💊 Dosage Forms and Strengths ▾
3 DOSAGE FORMS AND STRENGTHS LOCAMETZ is a kit for the preparation of gallium Ga 68 gozetotide injection supplied in a multiple-dose vial containing 25 micrograms of gozetotide as a white lyophilized powder. Gallium-68 is obtained from one of the following generators: Eckert & Ziegler GalliaPharm (Ge 68/Ga 68) generator IRE ELiT Galli Eo (Ge 68/Ga 68) generator After radiolabeling with gallium-68, each vial contains a sterile, clear, colorless solution free from particulate matter of gallium Ga 68 gozetotide at an activity of up to 2,590 MBq (70 mCi) in up to 10 mL at calibration date and time.
Kit for the preparation of gallium Ga 68 gozetotide injection supplied in a multiple-dose vial containing 25 mcg of gozetotide as a white lyophilized powder. After radiolabeling with gallium-68, the vial contains a sterile solution of gallium Ga 68 gozetotide at a strength up to 2,590 MBq (70 mCi) in up to 10 mL at calibration date and time. ( 3 )
⛔ Contraindications ▾
4 CONTRAINDICATIONS None. None. ( 4 )
⚠️ Warnings and Cautions ▾
5 WARNINGS AND PRECAUTIONS Risk for Misinterpretation: Gallium Ga 68 gozetotide uptake may occur in other tumor types and in non-malignant processes. Interpretation of LOCAMETZ PET imaging with histopathology and/or other diagnostic procedures is recommended. ( 5.1 ) Radiation Risk: Gallium Ga 68 gozetotide contributes to a patient’s overall long-term cumulative radiation exposure.
Ensure safe handling and preparation procedures to protect patients and health care workers from unintentional radiation exposure. ( 5.2 )
5.1Risk for Misinterpretation Image interpretation errors can occur with LOCAMETZ PET. Negative imaging does not rule out the presence of prostate cancer and positive imaging does not confirm the presence of prostate cancer. Gallium Ga 68 gozetotide uptake is not specific for prostate cancer and may occur with other types of cancer as well as non-malignant processes, such as Paget’s disease, fibrous dysplasia, and osteophytosis.
Clinical correlation, which may include histopathological evaluation of the suspected prostate cancer site, is recommended. The performance of LOCAMETZ for imaging of biochemically recurrent prostate cancer seems to be affected by serum PSA levels and by site of disease. The performance of LOCAMETZ for imaging of metastatic pelvic lymph nodes prior to initial definitive therapy seems to be affected by Gleason score [see Clinical Studies (14.1, 14.2)] .
5.2Radiation Risk Gallium Ga 68 gozetotide contributes to the patient’s overall long-term cumulative radiation exposure. Long-term cumulative radiation exposure is associated with an increased risk of cancer. Ensure safe handling to minimize radiation exposure to the patient and health care workers.
Advise patients to be well hydrated prior to gallium Ga 68 gozetotide injection administration and to void immediately prior to and frequently during the first hours after image acquisition to reduce radiation exposure [see Dosage and Administration (2.1, 2.3)] .
🤒 Adverse Reactions ▾
6 ADVERSE REACTIONS The adverse reactions (incidence ≥ 0.5%) are fatigue, nausea, constipation, and vomiting. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Novartis Pharmaceuticals Corporation at 1-888-669-6682 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch .
6.1Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The safety of LOCAMETZ has been established based on three prospective studies of gallium Ga 68 gozetotide in patients with prostate cancer (i.e., Studies 1, 2, and 3). Adverse reactions from these studies are reported below.
In Studies 1 and 2 using another formulation of gallium Ga 68 gozetotide injection, 960 patients received one dose of gallium Ga 68 gozetotide intravenously with the amount (mean ± SD) of radioactivity 188.7 ±
40.7MBq (5.1 ± 1.1 mCi) [see Clinical Studies (14.1, 14.2)] . The most commonly reported adverse reactions were nausea, diarrhea and dizziness, occurring at a rate of < 1%. In a randomized, multicenter, open-label clinical study (NCT03511664, referred to as Study 3) in which gallium Ga 68 gozetotide was used to identify PSMA-positive patients on PET imaging to determine eligibility for PSMA-directed therapy, 1,003 patients with progressive metastatic castration-resistant prostate cancer (mCRPC) received one dose of gallium Ga 68 gozetotide intravenously with the amount of radioactivity 167.1 ±
23.1MBq (4.52 ± 0.62 mCi). Patients were males with median age of 70 years (range, 40 to 94 years), were White (87%), Black or African American (7%), or Asian (2.4%), and had median baseline PSA levels of 74 ng/mL (range, 0 to 8995 ng/mL). Adverse reactions occurring at ≥ 0.5% in patients with metastatic prostate cancer who received gallium Ga 68 gozetotide injection in Study 3 are presented in Table 3.
Table 3. Adverse Reactions (≥ 0.5%) in Patients with Metastatic Prostate Cancer Who Received Gallium Ga 68 Gozetotide Injection in Study 3 Adverse reactions Gallium Ga 68 Gozetotide Injection N = 1003 n (%) General disorders Fatigue 12 (1.2) Gastrointestinal disorders Nausea 8 (0.8) Constipation 5 (0.5) Vomiting 5 (0.5) Adverse reactions occurring at a rate of < 0.5% in the study were diarrhea, dry mouth, injection site reactions including injection site hematoma and injection site warmth, and chills.
🔄 Drug Interactions ▾
7 DRUG INTERACTIONS Androgen Deprivation Therapy and Other Therapies Targeting the Androgen Pathway Androgen deprivation therapy (ADT) and other therapies targeting the androgen pathway, such as androgen receptor antagonists, can result in changes in uptake of gallium Ga 68 gozetotide in prostate cancer. The effect of these therapies on performance of LOCAMETZ PET has not been established.
👥 Use in Specific Populations ▾
8 USE IN SPECIFIC POPULATIONS
8.1Pregnancy Risk Summary LOCAMETZ is not indicated for use in females. There are no available data with gallium Ga 68 gozetotide use in pregnant women to evaluate for a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. All radiopharmaceuticals, including LOCAMETZ, have the potential to cause fetal harm depending on the fetal stage of development and the magnitude of radiation dose.
Animal reproduction studies have not been conducted with gallium Ga 68 gozetotide.
8.2Lactation Risk Summary LOCAMETZ is not indicated for use in females. There are no data on the presence of gallium Ga 68 gozetotide in human milk, the effect on the breastfed infant, or the effect on milk production.
8.4Pediatric Use The safety and effectiveness of gallium Ga 68 gozetotide in pediatric patients have not been established.
8.5Geriatric Use The efficacy of LOCAMETZ in geriatric patients with prostate cancer is based on data from three prospective studies. Of the total number of patients in Studies 1 and 2 [see Clinical Studies (14.1, 14.2)] , 691 of 960 (72%) were 65 years of age and older while 195 (20%) were 75 years of age and older. Of the total number of patients in Study 3 [see Adverse Reactions (6.1)] , 752 of 1,003 (75%) were 65 years of age and older while 284 (28%) were 75 years of age and older.
The efficacy and safety profiles of gallium Ga 68 gozetotide appeared similar in younger adult and geriatric patients with prostate cancer and other reported clinical experience has not identified differences in responses between the elderly and younger patients.
🤰 Pregnancy ▾
8.1Pregnancy Risk Summary LOCAMETZ is not indicated for use in females. There are no available data with gallium Ga 68 gozetotide use in pregnant women to evaluate for a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. All radiopharmaceuticals, including LOCAMETZ, have the potential to cause fetal harm depending on the fetal stage of development and the magnitude of radiation dose.
Animal reproduction studies have not been conducted with gallium Ga 68 gozetotide.
🧒 Pediatric Use ▾
8.4Pediatric Use The safety and effectiveness of gallium Ga 68 gozetotide in pediatric patients have not been established.
🧓 Geriatric Use ▾
8.5Geriatric Use The efficacy of LOCAMETZ in geriatric patients with prostate cancer is based on data from three prospective studies. Of the total number of patients in Studies 1 and 2 [see Clinical Studies (14.1, 14.2)] , 691 of 960 (72%) were 65 years of age and older while 195 (20%) were 75 years of age and older. Of the total number of patients in Study 3 [see Adverse Reactions (6.1)] , 752 of 1,003 (75%) were 65 years of age and older while 284 (28%) were 75 years of age and older.
The efficacy and safety profiles of gallium Ga 68 gozetotide appeared similar in younger adult and geriatric patients with prostate cancer and other reported clinical experience has not identified differences in responses between the elderly and younger patients.
🆘 Overdosage ▾
10 OVERDOSAGE In the event of an overdose of gallium Ga 68 gozetotide, reduce the radiation absorbed dose to the patient where possible by increasing the elimination of the radioactivity from the body by hydration and frequent bladder voiding. A diuretic might also be considered. If possible, an estimate of the effective radiation dose exposure to the patient should be made.
🧬 Clinical Pharmacology ▾
12 CLINICAL PHARMACOLOGY
12.1Mechanism of Action Gallium Ga 68 gozetotide binds to PSMA. It binds to cells that express PSMA, including malignant prostate cancer cells, which usually overexpress PSMA. Gallium-68 is a β+ emitting radionuclide that allows PET.
12.2Pharmacodynamics The relationship between gallium Ga 68 gozetotide plasma concentrations and successful imaging was not explored in clinical trials.
12.3Pharmacokinetics Distribution Intravenously injected gallium Ga 68 gozetotide is cleared from the blood and is accumulated preferentially in the liver (15%), kidneys (7%), spleen (2%), and salivary glands (0.5%). Gallium Ga 68 gozetotide uptake is also seen in the adrenals and prostate. There is no uptake in the cerebral cortex or in the heart, and usually lung uptake is low.
Gozetotide exhibits a mean blood-to-plasma ratio (% CV) of 0.71 (26%) and is approximately 33% bound to human plasma proteins at 1 mcg/mL to 5 mcg/mL in vitro . Elimination A total of 14% of the injected dose is excreted in urine in the first 2 hours post-injection. In Vitro Drug Interaction Studies CYP450 enzymes Gozetotide is not a substrate of cytochrome P450 (CYP450) enzymes, not an inhibitor of CYP1A2, CYP2B6, CYP2C8, CYP2C19, CYP2D6 and CYP3A4, and not an inducer of CYP1A2, CYP2B6 and CYP3A4 in vitro .
Transporters Gozetotide is not a substrate of BCRP, P-gp, MATE1, MATE2-K, OAT1, OAT3 or OCT2. Gozetotide is not an inhibitor of BCRP, P-gp, MATE1, MATE2-K, OAT1, OAT3, OATP1B1, OATP1B3, OCT1 or OCT2 in vitro .
🧬 Mechanism of Action ▾
12.1Mechanism of Action Gallium Ga 68 gozetotide binds to PSMA. It binds to cells that express PSMA, including malignant prostate cancer cells, which usually overexpress PSMA. Gallium-68 is a β+ emitting radionuclide that allows PET.
📦 How Supplied / Storage and Handling ▾
16 HOW SUPPLIED/STORAGE AND HANDLING How Supplied LOCAMETZ is supplied as a kit for the preparation of gallium Ga 68 gozetotide injection in a carton of 1 vial (NDC# 69488-017-61). Each multiple-dose vial contains 25 micrograms of gozetotide as white lyophilized powder packaged in a 10 mL type I Plus glass vial closed with a rubber stopper and sealed with a flip-off cap. Storage and Handling Before radiolabeling, store at 2°C to 25°C (36°F to 77°F).
Do not freeze. After radiolabeling, store upright with an appropriate lead shielding to protect from radiation, below 30°C (86°F). Do not freeze.
After radiolabeling, use within 6 hours. This preparation is approved for use by persons under license by the Nuclear Regulatory Commission or the relevant regulatory authority of an Agreement State.
📋 Description ▾
11 DESCRIPTION
11.1Chemical Characteristics LOCAMETZ (kit for the preparation of gallium Ga 68 gozetotide injection) is a sterile, radioactive diagnostic agent for intravenous administration after radiolabeling. Each vial contains 25 micrograms of gozetotide, 1 mg gentisic acid, 78 mg of sodium acetate trihydrate, and 40 mg sodium chloride. Gozetotide is also known as PSMA-11.
After reconstitution and radiolabeling of LOCAMETZ, the vial contains gallium Ga 68 gozetotide injection at a radioactivity of up to 2,590 MBq (70 mCi) in up to 10 mL at calibration date and time. The vial also contains hydrochloric acid derived from the gallium-68 chloride solution. Gallium Ga 68 gozetotide injection has a pH between 3.2 to 6.5.
Gallium Ga 68 gozetotide is a urea based peptidomimetic that has a covalently bound chelator (HBED-CC). The peptide has amino acid sequence OH-Glu-CO-Lys(Ahx-CC-HBED)-OH. Gallium Ga 68 gozetotide has a molecular weight of 1011.91 g/mol.
The chemical structure is shown in Figure 3. Figure 3. Chemical Structure of Gallium Ga 68 Gozetotide
11.2Physical Characteristics Gallium-68 decays with a half-life of 68 minutes to stable zinc-68. Table 4 and Table 5 display the principle radiation emission data, and physical decay of gallium-68. Table 4.
Principal Radiation Emission Data (> 1%) for Gallium-68 Radiation/Emission % Disintegration Mean energy (MeV) beta+ 88% 0.8360 beta+ 1.1% 0.3526 Gamma 178% 0.5110 Gamma 3% 1.0770 X-ray 2.8% 0.0086 X-ray 1.4% 0.0086 Table 5. Physical Decay Chart for Gallium-68 Minutes Fraction remaining 0 1 15 0.858 30 0.736 60 0.541 90 0.398 120 0.293 180 0.158 240 0.086 360 0.025
11.3Radiation Attenuation Table 6 displays the radiation attenuation by lead shielding of gallium-68. Table 6. Radiation Attenuation of 511 keV Photons by Lead (Pb) Shielding Shield thickness (Pb) mm Coefficient of attenuation 6 0.5 12 0.25 17 0.1 34 0.01 51 0.001 Figure 4. Chemical Structure of Gozetotide
💬 Information for Patients ▾
17 PATIENT COUNSELING INFORMATION Adequate Hydration Advise patients to be well hydrated prior to the administration of gallium Ga 68 gozetotide injection and urge them to urinate immediately prior to image acquisition and frequently during the first hours following administration to reduce radiation exposure [see Dosage and Administration (2.3), Warnings and Precautions (5.2)] . Distributed by: Novartis Pharmaceuticals Corporation East Hanover, NJ 07936 ©2025 Novartis LOCAMETZ ® is a registered trademark of Novartis AG and/or its affiliates.
U.S. Patent 11369590 T2025-32
🧬 Pharmacokinetics ▾
12.3Pharmacokinetics Distribution Intravenously injected gallium Ga 68 gozetotide is cleared from the blood and is accumulated preferentially in the liver (15%), kidneys (7%), spleen (2%), and salivary glands (0.5%). Gallium Ga 68 gozetotide uptake is also seen in the adrenals and prostate. There is no uptake in the cerebral cortex or in the heart, and usually lung uptake is low.
Gozetotide exhibits a mean blood-to-plasma ratio (% CV) of 0.71 (26%) and is approximately 33% bound to human plasma proteins at 1 mcg/mL to 5 mcg/mL in vitro . Elimination A total of 14% of the injected dose is excreted in urine in the first 2 hours post-injection. In Vitro Drug Interaction Studies CYP450 enzymes Gozetotide is not a substrate of cytochrome P450 (CYP450) enzymes, not an inhibitor of CYP1A2, CYP2B6, CYP2C8, CYP2C19, CYP2D6 and CYP3A4, and not an inducer of CYP1A2, CYP2B6 and CYP3A4 in vitro .
Transporters Gozetotide is not a substrate of BCRP, P-gp, MATE1, MATE2-K, OAT1, OAT3 or OCT2. Gozetotide is not an inhibitor of BCRP, P-gp, MATE1, MATE2-K, OAT1, OAT3, OATP1B1, OATP1B3, OCT1 or OCT2 in vitro .
🧬 Pharmacodynamics ▾
12.2Pharmacodynamics The relationship between gallium Ga 68 gozetotide plasma concentrations and successful imaging was not explored in clinical trials.
🔬 Clinical Studies ▾
14 CLINICAL STUDIES
14.1Imaging Prior to Initial Definitive Therapy The efficacy of LOCAMETZ for PET of PSMA-positive lesions in men with prostate cancer with suspected metastasis who are candidates for initial definitive therapy has been established based on a study of another formulation of gallium Ga 68 gozetotide injection. Below is a display of the results of the prospective, open label study PSMA-PreRP (NCT03368547 and NCT02919111, referred to as Study 1). This two-center study enrolled 325 patients with biopsy-proven prostate cancer who were considered candidates for prostatectomy and pelvic lymph node dissection.
All enrolled patients met at least one of the following criteria: serum PSA of at least 10 ng/mL, tumor stage cT2b or greater, or Gleason score greater than 6. Each patient received a single gallium Ga 68 gozetotide PET/CT or PET/MR from mid-thigh to skull base. A total of 123 patients (38%) proceeded to standard-of-care prostatectomy and template pelvic lymph node dissection and had sufficient histopathology data for evaluation (evaluable patients).
Three members of a pool of six central readers independently interpreted each PET scan for the presence of abnormal gallium Ga 68 gozetotide uptake in pelvic lymph nodes located in the common iliac, external iliac, internal iliac, and obturator subregions bilaterally as well as in any other pelvic location. The readers were blinded to all clinical information except for the history of prostate cancer prior to definitive treatment. Extrapelvic sites and the prostate gland itself were not analyzed in this study.
For each patient, gallium Ga 68 gozetotide PET results and reference standard histopathology obtained from dissected pelvic lymph nodes were compared by region (left hemipelvis, right hemipelvis, and other). For the 123 evaluable patients, the mean age was 65 years (range, 45 to 76 years), and 89% were White. The median serum PSA was 11.8 ng/mL.
The summed Gleason score was 7 for 44%, 8 for 20%, and 9 for 31% of the patients, with the remainder of the patients having Gleason scores of 6 or 10. Table 7 compares majority PET reads to pelvic lymph node histopathology results at the patient-level with region matching, such that at least one true positive region defines a true positive patient. As shown, approximately 24% of patients studied were found to have pelvic nodal metastases based on histopathology (95% CI: 17, 32).
Table 7. Patient-Level Performance of Gallium Ga 68 Gozetotide PET for Detection of Pelvic Lymph Node Metastasis a in Men with Prostate Cancer with Suspected Metastasis in Study 1 (n = 123) Abbreviations: CI, confidence interval; PPV, positive predictive value; NPV, negative predictive value. a With region matching where at least one true positive region defines a true positive patient. Histopathology Predictive value % (95% CI) Positive Negative PET scan Positive 14 9 PPV 61% (41, 81) Negative 16 84 NPV 84% (79, 91) Total 30 93 Diagnostic performance % (95% CI) Sensitivity 47% (29, 65) Specificity 90% (84, 96) Among the pool of six readers, sensitivity ranged from 36% to 60%, specificity from 83% to 96%, positive predictive value from 38% to 80%, and negative predictive value from 80% to 88%.
In an exploratory subgroup analysis based on summed Gleason score, there was a numerical trend toward more true positives in patients with Gleason score of 8 or higher compared to those with Gleason score of 7 or lower. An exploratory analysis was performed to estimate the sensitivity and specificity for pelvic nodal metastasis detection in all scanned patients, including the patients who were lacking histopathology reference standard. An imputation method was used based on patient-specific factors.
This exploratory analysis resulted in an imputed sensitivity of 47%, with a 95% confidence interval (CI) ranging from 38% to 55%, and an imputed specificity of 74%, with a 95% CI ranging from 68% to 80% for all patients imaged with gallium Ga 68 gozetotide… [Excerpted — this section continues on DailyMed.]
🧪 Nonclinical Toxicology ▾
13 NONCLINICAL TOXICOLOGY
13.1Carcinogenesis, Mutagenesis, Impairment of Fertility No studies on mutagenic, carcinogenic potential or fertility have been conducted with gallium Ga 68 gozetotide.
📄 Carcinogenesis, Mutagenesis, Impairment of Fertility ▾
13.1Carcinogenesis, Mutagenesis, Impairment of Fertility No studies on mutagenic, carcinogenic potential or fertility have been conducted with gallium Ga 68 gozetotide.
📄 Recent Major Changes ▾
Indications and Usage ( 1 ) 3/2025 Dosage and Administration, Image Interpretation ( 2.8 ) 3/2025 Warnings and Precautions, Risk for Misinterpretation ( 5.1 ) 3/2025
📄 Package Label / Principal Display Panel ▾
PRINCIPAL DISPLAY PANEL LOCAMETZ ® kit for the preparation of gallium Ga 68 gozetotide injection 25 mcg per vial gozetotide For Intravenous Use Only Radiolabel with gallium-68 chloride before use Rx Only NDC 69488-017-61 Novartis Pharmaceuticals Corporation East Hanover, NJ 07936 PRINCIPAL DISPLAY PANEL LOCAMETZ® kit for the preparation of gallium Ga 68 gozetotide injection 25 mcg per vial gozetotide For Intravenous Use Only Radiolabel with gallium-68 chloride before use Rx Only NDC 69488-017-61 Novartis Pharmaceuticals Corporation East Hanover, NJ 07936
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