Somatostatin Receptor Positive (SSTR+)Phase 3NETTER-3NCT06784752
Study to Evaluate the Efficacy and Safety of [177Lu]Lu-DOTA-TATE in Patients With Grade 1 and Grade 2 Advanced GEP-NET
A Phase 3 study testing [177Lu]Lu-DOTA-TATE and Octreotide LAR in people with Somatostatin Receptor Positive (SSTR+) and Gastroenteropancreatic Neuroendocrine Tumor (GEP-NET), run by Novartis Pharmaceuticals at 67 sites in 12 countries.
Trial summary
The purpose of the current study is to evaluate the efficacy and safety of [177Lu]Lu-DOTA-TATE plus octreotide long-acting release (LAR) versus octreotide LAR alone in newly diagnosed patients with somatostatin receptor positive (SSTR+), well differentiated Grade1 and Grade 2 (G1 and G2) (Ki-67 <10%) advanced… Read more about this study
- Who is it for?
- Ages 12 to 100 years
- Conditions the study is for
- Somatostatin Receptor Positive (SSTR+), Gastroenteropancreatic Neuroendocrine Tumor (GEP-NET)
- What is being tested?
- [177Lu]Lu-DOTA-TATE and Octreotide LAR
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 240 participants
- Where
- 67 sitesin 12 countries
- Study dates
- 30 May 2025to 23 Jan 2034
- Phase
- Phase 3
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 12 to 100 years
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Presence of metastasized or locally advanced, unresectable (curative intent), histologically proven, well differentiated Grade 1 or Grade 2 (Ki-67 <10%) gastroenteropancreatic neuroendocrine tumor (GEP-NET) diagnosed within 6 months prior to screening.
- Participants with high disease burden in the Investigator's opinion. Following criteria should be used as the guiding principle for determining high disease burden:
- Primary tumor or a metastatic lesion > 4 cm
- More than one tumor or metastatic lesions measuring > 2 cm
- Elevated alkaline phosphatase > 2.5 X upper limit of normal (ULN)
- Presence of bone metastasis
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- Presence of peritoneal metastasis
- Symptoms due to tumor volume such as pain, fatigue, weight loss, anorexia etc.
- Symptoms due to hormone excess requiring active management
- Additionally, participants who, in the Investigator's opinion, have high disease burden due to their disease characteristics not specified above could also be considered eligible.
- Participants ≥ 12 years of age.
- RLI somatostatin receptor (SSTR) uptake on all target lesions (defined by RECIST v1.1 criteria) at least as high as normal liver uptake assessed within 3 months prior to randomization. Any of the RLI modalities as available (some examples are listed below) can be used as per local practice:
- [68Ga]Ga-DOTA-TOC PET/CT or PET/MRI
- [68Ga]Ga-DOTA-TATE PET/CT or PET/MRI
- [64Cu]Cu-DOTA-TATE PET/CT or PET/MRI
- Somatostatin receptor scintigraphy (SRS) (planar and/or SPECT/CT) with [111In]In-pentetreotide
- SRS (planar and/or SPECT/CT) with [99mTc]Tc-octreotide.
- Adequate bone marrow and organ function as defined by the following laboratory values prior to receiving the first study treatment:
- White blood cell (WBC) count ≥ 2 x 109/L
- Platelet count ≥ 75 x 109/L
- Hemoglobin (Hb) ≥ 8 g/dL
- Creatinine clearance > 40 mL/min calculated by the Cockcroft Gault method
- Total bilirubin ≤ 3 x ULN
- Potassium within normal limits. Potassium level of up to 6.0 millimoles per liter (mmol/L) is acceptable at study entry if associated with creatinine clearance within normal limits calculated using Cockcroft-Gault formula. Mild decrease (grade 1) below lower limit of normal (LLN) is acceptable at study entry if considered not clinically significant by Investigator.
- ECOG performance status 0-1.
- Presence of at least 1 measurable site of disease.
Who cannot join
- Prior administration of a therapeutic radiopharmaceutical for GEP-NET at any time prior to randomization in the study.
- Any previous therapy with interferons, mTOR-inhibitors, chemotherapy or other systemic therapies except somatostatin analogues (SSAs) of GEP-NET. If as per Investigator's opinion a participant is candidate for such therapies, such participant must not be enrolled.
- Participant who received more than 4 cycles of prior SSAs (e.g., octreotide long-acting release) are not eligible. In addition, any participant receiving treatment with short-acting octreotide, which cannot be interrupted for 24 h before the administration of [177Lu]Lu-DOTA-TATE, or any participant receiving treatment with SSAs, which cannot be interrupted for at least 4 weeks before the administration of [177Lu]Lu-DOTA-TATE.
- Documented RECIST v1.1 progression during previous SSA treatments for the current GEP-NET at any time prior to randomization.
- Any previous radioembolization, chemoembolization and radiofrequency ablation for GEP-NET.
- Any major surgery within 12 weeks prior to randomization in the study.
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- Known brain metastases.
- Participant with known intolerance to CT scans with intravenous (i.v.) contrast due to allergic reaction or renal insufficiency. If such a participant can be imaged with MRI, then the participant would not be excluded.
- Hypersensitivity to any somatostatin analogues, to the Investigational Medicinal Products (IMPs) active substance or to any of the excipients.
- Active severe urinary incontinence, severe voiding dysfunction, or urinary obstruction requiring an indwelling/condom catheter that, in the judgment of the Investigator, could prevent adhering to radiation safety instructions.
- Other protocol-defined Inclusion/Exclusion criteria may apply.
Trial locations and contacts
67 sites in 12 countries. Contact the study team or a site near you to ask about taking part.
Novartis Pharmaceuticals contact
67 sites in 12 countries
United States20 sites, 19 recruiting
- Recruiting
Piedmont Healthcare
Atlanta, Georgia, 30318
Jeff Whorton, Jeff.Whorton@piedmont.org
Eyal Meiri
- Recruiting
Winship Cancer Institute
Atlanta, Georgia, 30322
Bridget Fielder, 404-686-8210, bfielde@emory.edu
Amol Takalkar
- Active, not recruiting
TxO Austin Midtown
Austin, Texas, 78705
- Recruiting
Texas Oncology
Dallas, Texas, 75251
Danielle Koetter, danielle.koetter@usoncology.com
Scott Scott Paulson
- Recruiting
Rocky Mountain Cancer Centers
Denver, Colorado, 80218
Ciara Bair, 303-388-4676, ciara.bair@usoncology.com
Allen Cohn
- Recruiting
Henry Ford Hospital
Detroit, Michigan, 48202-2689
Christina Vu, 313-876-1850, cvu1@hfhs.org
Philip A Philip
- Recruiting
St Elizabeth Healthcare
Edgewood, Kentucky, 41017
Lauren Willett, lauren.willett@stelizabeth.com
Minsig Choi
- Recruiting
Virginia Cancer Specialists
Fairfax, Virginia, 22031
Spencer Lockhart, spencer.lockhart@usoncology.com
Gregory Scott Sibley
- Recruiting
Highlands Oncology Group
Fayetteville, Arkansas, 72703
Tina Patrick, +1 479 878 7098, tpatrick@hogonc.com
Joseph Thaddeus Beck
- Recruiting
Hartford Hospital
Hartford, Connecticut, 06102
Jennifer Selmer-Larsen, Jennifer.Selmer-Larsen@hhchealth.org
Andrew Salner
- Recruiting
Mayo Clinic Jacksonville
Jacksonville, Florida, 32224
Minoshka Chaparro Gardner, 904-953-2451, chaparrogardner.minoshka@mayo.edu
Jason Starr
- Recruiting
Tennessee Oncology
Nashville, Tennessee, 37203
Don Merriman, dmerriman@tnonc.com
Joseph Merriman
- Recruiting
Yale New Haven Hospital
New Haven, Connecticut, 06520
Melissa George, melissa.george@yale.edu
Pamela Kunz
- Recruiting
LSU Medical Center
New Orleans, Louisiana, 70112
Dominique Breaux, dkell3@lsuhsc.edu
Mary Maluccio
- Recruiting
Mount Sinai Medical Center
New York, New York, 10029-6574
Nicole Laratta, 212-824-7876, nicole.laratta@mssm.edu
Edward Wolin
- Recruiting
Virginia Oncology Associates
Norfolk, Virginia, 23502
Amber Ingram, amber.ingram@usoncology.com
Jedrzej Wykretowicz
- Recruiting
AdventHealth
Orlando, Florida, 32804
Joseph Guzzo, 407-303-3235, joseph.guzzo@adventhealth.com
Jawad Francis
- Recruiting
Mayo Clinic Arizona
Scottsdale, Arizona, 85259
Rochelle Quinonez, 480-301-6795, quinonez.rochelle@mayo.edu
Mohamad Sonbol
- Recruiting
Northwest Medical Specialties
Tacoma, Washington, 98405
Patricia Walsh, 253-841-4296, pwalsh@nwmsonline.com
Mohammed N Kanaan
- Recruiting
Blue Ridge Cancer Center
Wytheville, Virginia, 24382
Andrea L Pollard, andi.pollard@usoncology.com
David Buck
Italy8 sites, 8 recruiting
- Recruiting
Novartis Investigative Site
Cona, FE, 44124
- Recruiting
Novartis Investigative Site
Genova, GE, 16132
- Recruiting
Novartis Investigative Site
Milan, MI, 20133
- Recruiting
Novartis Investigative Site
Milan, MI, 20141
- Recruiting
Novartis Investigative Site
Pisa, PI, 56126
- Recruiting
Novartis Investigative Site
Roma, RM, 00168
- Recruiting
Novartis Investigative Site
Roma, RM, 00189
- Recruiting
Novartis Investigative Site
Rozzano, MI, 20089
Spain7 sites, 7 recruiting
- Recruiting
Novartis Investigative Site
Barcelona, 08035
- Recruiting
Novartis Investigative Site
L'Hospitalet de Llobregat, Barcelona, 08907
- Recruiting
Novartis Investigative Site
Madrid, 28034
- Recruiting
Novartis Investigative Site
Madrid, 28040
- Recruiting
Novartis Investigative Site
Madrid, 28041
- Recruiting
Novartis Investigative Site
Oviedo, Principality of Asturias, 33011
- Recruiting
Novartis Investigative Site
Salamanca, 37007
France6 sites, 6 recruiting
- Recruiting
Novartis Investigative Site
Bron, 69677
- Recruiting
Novartis Investigative Site
Clichy, 92110
- Recruiting
Novartis Investigative Site
Montpellier, 34298
- Recruiting
Novartis Investigative Site
Nantes, 44093
- Recruiting
Novartis Investigative Site
Pessac, 33604
- Recruiting
Novartis Investigative Site
Toulouse, 31059
Poland6 sites, 6 recruiting
- Recruiting
Novartis Investigative Site
Gdansk, 80-214
- Recruiting
Novartis Investigative Site
Gliwice, 44-101
- Recruiting
Novartis Investigative Site
Krakow, 30-688
- Recruiting
Novartis Investigative Site
Poznan, 60-355
- Recruiting
Novartis Investigative Site
Warsaw, 02-351
- Recruiting
Novartis Investigative Site
Warsaw, 04-141
Canada4 sites, 4 recruiting
- Recruiting
Novartis Investigative Site
Edmonton, Alberta, T6G 1Z2
- Recruiting
Novartis Investigative Site
London, Ontario, N6A 5W9
- Recruiting
Novartis Investigative Site
Montreal, Quebec, H3T 1E2
- Recruiting
Novartis Investigative Site
Toronto, Ontario, M4N 3M5
China4 sites, 4 recruiting
- Recruiting
Novartis Investigative Site
Beijing, 100036
- Recruiting
Novartis Investigative Site
Beijing, 100730
- Recruiting
Novartis Investigative Site
Beijing, 102200
- Recruiting
Novartis Investigative Site
Shanghai, 200032
Germany3 sites, 3 recruiting
- Recruiting
Novartis Investigative Site
Erlangen, 91054
- Recruiting
Novartis Investigative Site
Essen, 45147
- Recruiting
Novartis Investigative Site
München, 80377
South Korea3 sites, 3 recruiting
- Recruiting
Novartis Investigative Site
Seoul, 03080
- Recruiting
Novartis Investigative Site
Seoul, 03722
- Recruiting
Novartis Investigative Site
Seoul, 05505
Hungary2 sites, 2 recruiting
- Recruiting
Novartis Investigative Site
Budapest, 1083
- Recruiting
Novartis Investigative Site
Szeged, 6725
Netherlands2 sites, 2 recruiting
- Recruiting
Novartis Investigative Site
Rotterdam, South Holland, 3015 GD
- Recruiting
Novartis Investigative Site
Utrecht, 3584 CX
United Kingdom2 sites, 2 recruiting
- Recruiting
Novartis Investigative Site
Glasgow, G12 0YN
- Recruiting
Novartis Investigative Site
London, SE5 9RS
About this study
Official title: A Phase III Multi-center, Randomized, Open-label Study to Evaluate the Efficacy and Safety of [177Lu]Lu-DOTA-TATE in Patients Newly Diagnosed With Grade 1 and Grade 2 (Ki-67 <10%) Advanced GEP-NET With High Disease Burden (NETTER-3)
The purpose of the current study is to evaluate the efficacy and safety of [177Lu]Lu-DOTA-TATE plus octreotide long-acting release (LAR) versus octreotide LAR alone in newly diagnosed patients with somatostatin receptor positive (SSTR+), well differentiated Grade1 and Grade 2 (G1 and G2) (Ki-67 <10%) advanced gastroenteropancreatic neuroendocrine tumors (GEP-NETs) with high disease burden
Read the detailed description
The study consists of a screening phase, a treatment phase and a follow-up phase. This study compares treatment with [177Lu]Lu-DOTA-TATE plus octreotide LAR and octreotide LAR only.
- Conditions
- Somatostatin Receptor Positive (SSTR+), Gastroenteropancreatic Neuroendocrine Tumor (GEP-NET)
- Being tested
- [177Lu]Lu-DOTA-TATE, Octreotide LAR
- Keywords
- SSTR+, GEP-NET, Ki-67 <10%, AAA601, [177Lu]Lu-DOTA-TATE, newly diagnosed, well differentiated, advanced GEP-NETs, high disease burden, NETTER-3, Grade 1, Grade 2, Tumor-targeted radioligand therapy, RLT, octreotide LAR, Gastroenteropancreatice Neuroendocrine Tumor, PFS, Quality of life (QOL)/PRO, QoL, neuroendocrine tumor(s)
- Medical subject headings
- Gastro-enteropancreatic neuroendocrine tumor, Lymphoma, Follicular
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
[177Lu]Lu-DOTA-TATERadiation
[177Lu]Lu-DOTA-TATE will be administered 4 times during treatment period with frequency of every 8 weeks (Q8W)
Octreotide LARDrug
Also called SOM230
Octreotide LAR will be administered Q8W when co-administered with [177Lu]Lu-DOTA-TATE in the investigational arm followed by Q4W.
In the control arm Octreotide LAR will be administered Q4W.
| Study group | Role | What they receive |
|---|---|---|
| [177Lu]Lu-DOTA-TATE + Octreotide LAR | Experimental | Participants in this arm will receive [177Lu]Lu-DOTA-TATE plus Octreotide long-acting release (LAR). Receives: Radiation: [177Lu]Lu-DOTA-TATE; Drug: Octreotide LAR |
| Octreotide LAR | Active comparator | Participants in this arm will receive Octreotide LAR only. Receives: Drug: Octreotide LAR |
What is being measured
The primary outcome is the main question the study is designed to answer.
Progression Free Survival (PFS) centrally assessed by Blinded Independent Review Committee (BIRC)
PFS is defined as the time from randomization to the first occurrence of progression (centrally assessed by Blinded Independent Review Committee (BIRC) according to RECIST v1.1) or death due to any cause.
Measured: After observing approximately 88 PFS events as per BIRC assessments, expected after approximately 33 months from study start
Secondary outcomes (15)
Time to Deterioration (TDD) (Key Secondary)
Time to deterioration is defined as the time from randomization to the first occurrence of a deterioration compared to the baseline scores or death from any cause for each of the following domains (tested separately) of EORTC QLQ-GI.NET21 [gastrointestinal scale (GI scale)] and EORTC QLQ-C30 questionnaires (fatigue, diarrhea, and global health scale).
Measured: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Progression Free Survival (PFS)
PFS is defined as the time from randomization to the first occurrence of progression (Investigator assessed according to RECIST v1.1) or death due to any cause.
Measured: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Objective Response Rate (ORR)
ORR: Rate of participants with best overall response (BOR) of partial response (PR) or complete response (CR) as per RECIST v1.1 (both Investigator and centrally assessed by BIRC).
Measured: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Disease Control Rate (DCR)
DCR: Rate of participants with BOR of PR, CR or stable disease (SD) as per RECIST v1.1 (both Investigator and centrally assessed by BIRC).
Measured: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Duration of Response (DOR)
DOR: The time from initially meeting the criteria for response (CR or PR) until the time of progression according to RECIST v1.1 or death due to underlying disease only.
Measured: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Overall Survival (OS)
OS: Time from the randomization date until the date of death due to any cause.
Measured: Until 60 month from randomization
Time to Deterioration (TDD)
TTD is the time from randomization to the first occurrence of a deterioration compared to the baseline scores or death from any cause for EORTC QLQ-G.I.NET21 and EORTC QLQ-C30 domains not included among key secondary endpoints.
Measured: At the time of primary PFS analysis after observing approximately 88 PFS events per BIRC assessment
Absolute change from baseline in EORTC QLQ-G.I.NET21 domain
Quality of Life assessed by EORTC QLQ-G.I.NET21 (excluding GI scale) (domains not included as key secondary objectives)
Measured: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Absolute change from baseline in the EQ-5D-5L index at each time point
Quality of Life assessed by EQ-5D-5L
Measured: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Absolute change from baseline in EORTC QLQ-C30 domain
Quality of Life assessed by EORTC QLQ-C30 (domains not included as key secondary objectives)
Measured: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start.
Dosimetry
Absorbed radiation dose in selected organs, tumor lesions and total body
Measured: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Pharmacokinetic (PK) parameter: Area Under Curve (AUC) from [177Lu]Lu-DOTA-TATE blood radioactivity data
The AUC from time zero to the last measurable concentration sampling time (tlast) (mass x time x volume-1).
The AUC from time zero to infinity (mass x time x volume-1)
Measured: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
PK parameter: Clearance from [177Lu]Lu-DOTA-TATE blood radioactivity data
Clearance is the total body clearance of drug from the plasma or blood (volume x time-1).
Measured: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
PK parameter: Distribution volume (Vz) from [177Lu]Lu-DOTA-TATE blood radioactivity data
The apparent volume of distribution during terminal phase (associated with λz) (volume)
Measured: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
PK parameter: half-life (T1/2) from [177Lu]Lu-DOTA-TATE blood radioactivity data
The elimination half-life associated with the terminal slope (λz) of a semi logarithmic concentration-time curve (time). Use qualifier for other half-lives
Measured: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Jan 2025
- Study start30 May 2025
- Primary completion8 Dec 2028 (estimated)
- Study completion23 Jan 2034 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Somatostatin Receptor Positive (SSTR+)Studies of the same condition, open and under way.
- More trials run by Novartis PharmaceuticalsThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 240 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Novartis Pharmaceuticals
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Novartis Pharmaceuticals, Study director, Novartis Pharmaceuticals
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06784752
- Sponsor's protocol ID
- CAAA601A62301
- Other IDs
- 2024-518325-15-00
- Acronym
- NETTER-3
- Status last verified
- Sep 2026
- First submitted
- 19 Dec 2024
- Last updated
- 11 Sep 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: Novartis is committed to sharing with qualified external researchers, access to patient-level data and supporting clinical documents from eligible studies. These requests are reviewed and approved by an independent review panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations. This trial data availability is according to the criteria and process described on www.clinicalstudydatarequest.com
Study at a glance
From the registry record, last updated by the sponsor on 11 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase III Multi-center, Randomized, Open-label Study to Evaluate the Efficacy and Safety of [177Lu]Lu-DOTA-TATE in Patients Newly Diagnosed With Grade 1 and Grade 2 (Ki-67 <10%) Advanced GEP-NET With High Disease Burden (NETTER-3)
- ClinicalTrials.gov ID
- NCT06784752
- Acronym / sponsor ID
- NETTER-3 / CAAA601A62301
- Conditions
- Somatostatin Receptor Positive (SSTR+), Gastroenteropancreatic Neuroendocrine Tumor (GEP-NET)
- Keywords
- SSTR+, GEP-NET, Ki-67 <10%, AAA601, [177Lu]Lu-DOTA-TATE, newly diagnosed, well differentiated, advanced GEP-NETs
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 240 participants (estimated)
- Lead sponsor
- Novartis PharmaceuticalsIndustry (pharma, biotech, devices)
- Study start
- 30 May 2025 (actual)
- Primary completion
- 8 Dec 2028 (estimated)
- Study completion
- 23 Jan 2034 (estimated)
- First posted
- 20 Jan 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of the current study is to evaluate the efficacy and safety of [177Lu]Lu-DOTA-TATE plus octreotide long-acting release (LAR) versus octreotide LAR alone in newly diagnosed patients with somatostatin receptor positive (SSTR+), well differentiated Grade1 and Grade 2 (G1 and G2) (Ki-67 <10%) advanced gastroenteropancreatic neuroendocrine tumors (GEP-NETs) with high disease burden
Detailed description
The study consists of a screening phase, a treatment phase and a follow-up phase. This study compares treatment with [177Lu]Lu-DOTA-TATE plus octreotide LAR and octreotide LAR only.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| [177Lu]Lu-DOTA-TATE + Octreotide LAR | Experimental | Radiation: [177Lu]Lu-DOTA-TATE, Drug: Octreotide LARParticipants in this arm will receive [177Lu]Lu-DOTA-TATE plus Octreotide long-acting release (LAR). |
| Octreotide LAR | Active comparator | Drug: Octreotide LARParticipants in this arm will receive Octreotide LAR only. |
Who may qualify
- Ages
- 12 to 100 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (26 listed)
- Presence of metastasized or locally advanced, unresectable (curative intent), histologically proven, well differentiated Grade 1 or Grade 2 (Ki-67 <10%) gastroenteropancreatic neuroendocrine tumor (GEP-NET) diagnosed within 6 months prior to screening.
- Participants with high disease burden in the Investigator's opinion. Following criteria should be used as the guiding principle for determining high disease burden:
- Participants ≥ 12 years of age.
- RLI somatostatin receptor (SSTR) uptake on all target lesions (defined by RECIST v1.1 criteria) at least as high as normal liver uptake assessed within 3 months prior to randomization. Any of the RLI modalities as available (some examples are listed below) can be used as per local practice:
- Adequate bone marrow and organ function as defined by the following laboratory values prior to receiving the first study treatment:
Key exclusion criteria (11 listed)
- Prior administration of a therapeutic radiopharmaceutical for GEP-NET at any time prior to randomization in the study.
- Any previous therapy with interferons, mTOR-inhibitors, chemotherapy or other systemic therapies except somatostatin analogues (SSAs) of GEP-NET. If as per Investigator's opinion a participant is candidate for such therapies, such participant must not be enrolled.
- Participant who received more than 4 cycles of prior SSAs (e.g., octreotide long-acting release) are not eligible. In addition, any participant receiving treatment with short-acting octreotide, which cannot be interrupted for 24 h before the administration of [177Lu]Lu-DOTA-TATE, or any participant receiving treatment with SSAs, which cannot be interrupted for at least 4 weeks before the administration of [177Lu]Lu-DOTA-TATE.
- Documented RECIST v1.1 progression during previous SSA treatments for the current GEP-NET at any time prior to randomization.
- Any previous radioembolization, chemoembolization and radiofrequency ablation for GEP-NET.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| [177Lu]Lu-DOTA-TATE[177Lu]Lu-DOTA-TATE will be administered 4 times during treatment period with frequency of every 8 weeks (Q8W) | Radiation | [177Lu]Lu-DOTA-TATE + Octreotide LAR |
| Octreotide LARAlso: SOM230Octreotide LAR will be administered Q8W when co-administered with [177Lu]Lu-DOTA-TATE in the investigational arm followed by Q4W. In the control arm Octreotide LAR will be administered Q4W. | Drug | Octreotide LAR, [177Lu]Lu-DOTA-TATE + Octreotide LAR |
Primary outcome
Progression Free Survival (PFS) centrally assessed by Blinded Independent Review Committee (BIRC)
Time frame: After observing approximately 88 PFS events as per BIRC assessments, expected after approximately 33 months from study start
PFS is defined as the time from randomization to the first occurrence of progression (centrally assessed by Blinded Independent Review Committee (BIRC) according to RECIST v1.1) or death due to any cause.
15 secondary outcomes
Time to Deterioration (TDD) (Key Secondary)
Time frame: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Progression Free Survival (PFS)
Time frame: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Objective Response Rate (ORR)
Time frame: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Disease Control Rate (DCR)
Time frame: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Duration of Response (DOR)
Time frame: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Overall Survival (OS)
Time frame: Until 60 month from randomization
Time to Deterioration (TDD)
Time frame: At the time of primary PFS analysis after observing approximately 88 PFS events per BIRC assessment
Absolute change from baseline in EORTC QLQ-G.I.NET21 domain
Time frame: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Absolute change from baseline in the EQ-5D-5L index at each time point
Time frame: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Absolute change from baseline in EORTC QLQ-C30 domain
Time frame: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start.
Dosimetry
Time frame: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Pharmacokinetic (PK) parameter: Area Under Curve (AUC) from [177Lu]Lu-DOTA-TATE blood radioactivity data
Time frame: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
PK parameter: Clearance from [177Lu]Lu-DOTA-TATE blood radioactivity data
Time frame: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
PK parameter: Distribution volume (Vz) from [177Lu]Lu-DOTA-TATE blood radioactivity data
Time frame: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
PK parameter: half-life (T1/2) from [177Lu]Lu-DOTA-TATE blood radioactivity data
Time frame: After observing approximately 88 PFS events as per BIRC assessment, expected after approximately 33 months from study start
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 11 Sep 2026.
- Individual participant dataSharing planned: Yes. Novartis is committed to sharing with qualified external researchers, access to patient-level data and supporting clinical documents from eligible studies. These requests are reviewed and approved by an independent review panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations. This trial data availability is according to the criteria and process described on www.clinicalstudydatarequest.com
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Novartis Pharmaceuticals contact
Novartis Pharmaceuticals study director
Novartis Pharmaceuticals
67 sites in 12 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing [177Lu]Lu-DOTA-TATE and Octreotide LAR in people with Somatostatin Receptor Positive (SSTR+) and Gastroenteropancreatic Neuroendocrine Tumor (GEP-NET), run by Novartis Pharmaceuticals at 67 sites in 12 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 26 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 11 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 67 sites in United States, Italy, Spain, France, Poland and 7 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Novartis Pharmaceuticals (1-888-669-6682, novartis.email@novartis.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Progression Free Survival (PFS) centrally assessed by Blinded Independent Review Committee (BIRC) (time frame: After observing approximately 88 PFS events as per BIRC assessments, expected after approximately 33 months from study start). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Sep 2026.