Phase 1 Study of AlphaMedix™ in Adult Subjects With SSTR (+) NET

Study Purpose

AlphaMedix™ (²¹²Pb-DOTAMTATE) is a radiotherapeutic drug indicated in subjects with unresectable, metastatic somatostatin receptor (SSTR) positive neuroendocrine tumors (NETs). Because 212Pb is an in vivo generator of alpha particles, it is particularly suitable for SSTR therapy applications. This drug addresses an unmet need in the field of peptide receptor radionuclide therapy (PRRT) for NETs. Substitution of an alpha emitter (²¹²Pb) for the beta emitters currently being used (i.e., 177Lu or 90Y) will provide significantly higher Linear Energy Transfer (LET) and a shorter path length. Higher LET particles should cause more tumor cell death. Shorter path length should result in less collateral damage of the normal tissue and therefore less side effects for subjects receiving the drug.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

No
Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.


An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.


Searching Both is inclusive of interventional and observational studies.

Interventional
Eligible Ages 18 Years and Over
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

  • - ECOG status 0-2.
  • - Life expectancy of at least 12 weeks.
  • - Histologically confirmed diagnosis of SSTR (+) NET, unresectable or metastatic.
  • - Measurable disease per RECIST 1.1 on CT/MRI scans, defined as at least 1 lesion with ≥ 1 cm in longest diameter (LD) (lymph nodes along short axis).
  • - Appropriate diagnostic imaging studies, at the discretion of the PI including but not limited to CT, MRI, 18F-FDG PET/CT, NAF PET/CT bone scan, ultrasound, etc. of the tumor region or suspected area within the 4 weeks of dosing day.
  • - SSTR(+) disease, as evidenced by available FDA approved SSTR imaging (SRI) within 4 weeks prior to the first cycle.
  • - All FDA-approved therapies for which the subject is eligible have been exhausted.
  • - Recent blood test results (within 2 weeks pre-dose) as follows: Sufficient bone marrow capacity as defined by white blood cell (WBC) ≥2,500/µl and WBC ≥2,000/µl for subsequent cycles; platelets ≥ 100,000/µl for the first treatment and ≥75,000 for the subsequent therapies, hemoglobin (HgB) ≥8.9 g/dl for the first treatment and 8.0 g/dl for the subsequent therapies, ANC ≥1,500/µl for the first treatment and ≥1,000/µl; for the subsequent therapies; ALT, AST values ≤3 times upper limit of normal (ULN); Bilirubin: ≤3 times ULN; Serum creatinine ≤150 µmol/liter or 1.7 mg/dl; Negative pregnancy test in women capable of child-bearing within 48 hours of administration; Serum albumin > 3.0 g/L (<3.0 g/L may be acceptable at the discretion of PI, if PT, PTT, and INR are within normal range)

    Exclusion Criteria:

    - Prior whole-body radiotherapy and PRRT using 177Lu/90Y/111In- DOTATATE/DOTATOC or TAT.
  • - Known hypersensitivity to 68Gallium, Octreotate, or any of the excipients of 68Ga-DOTATATE, AA infusion or AlphaMedix™.
  • - Therapeutic use of any somatostatin analogue, including Sandostatin® LAR (within 28 days) and Sandostatin® (within 1 day) prior to administration of investigational drug.
  • - Subjects with unusual hematological parameters, including an increased mean corpuscular volume (MCV) (>100,000), and especially in those who had previous chemotherapy, the advice of a hematologist should be sought for adequate further work-up to rule out myelodysplastic syndrome (MDS).
  • - Any subject who is taking concomitant medications that decrease renal function (such as aminoglycoside antibiotics).
  • - Female subjects who are pregnant, lactating or women of childbearing potential not willing to practice effective contraceptive techniques during the study period and for 8 weeks post-injection or male subjects who have female partners of childbearing potential not willing to practice abstinence or effective contraception, during the study period and for 8 weeks post-injection.
  • - Current somatic or psychiatric disease/condition that may interfere with the objectives and assessments of the study.
  • - Indication for surgical lesion removal with curative potential.
  • - Known brain metastases; unless these metastases have been treated and stabilized 6 months prior to enrollment.
  • - Completion of: (1) cytotoxic chemotherapy for less than 6 weeks; (2) a biological agent for less than 5 half-lives; and (3) radiation therapy for less than 6 weeks prior to study enrolment, - Uncontrolled congestive heart failure; subjects suspected of having this condition need to show ejection fraction of >55% as determined by multigated acquisition (MUGA) scan.
  • - Carcinoid heart disease: Prior history of torsade de pointe, or congenital long QT syndrome; Conditions with screening ECG repolarization difficult to interpret, or showing significant abnormalities.
This includes, but is not limited to: high degree AV block, pacemaker, atrial fibrillation or flutter; QTcF interval > 480 msec on screening ECG; Significant hypokalemia at screening (Potassium <3.5 mMol/L); Significant hypomagnesemia at screening (Mg++ <0.7 mMol/L) - GFR < 35 mL/min

Trial Details

Trial ID:

This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.

NCT03466216
Phase

Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Phase 1
Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

Radiomedix, Inc.
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Rodolfo Nunez, MD
Principal Investigator Affiliation Excel Diagnostics and Nuclear Oncology Center
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Industry
Overall Status Recruiting
Countries United States
Conditions

The disease, disorder, syndrome, illness, or injury that is being studied.

Neuroendocrine Tumor
Additional Details

This dose escalation study will include a maximum of 50 subjects with histologically confirmed NET, a positive somatostatin analogue scan, and no prior history of PRRT therapy. The study will begin with a single ascending dose (SAD) of AlphaMedix™ administered by

  • IV. Subsequent cohorts will receive an incremental 30% increase that will continue until tumor response or DLT.
Once tumor response is observed, the study will convert to a Multiple Ascending Dose (MAD) regimen. The MAD treatment regimen will start with the previous safe cohort's dose and will consist of 3 IV administrations of AlphaMedix™ at 8-week intervals. Subsequent cohorts will receive an incremental 30% increase that will continue until tumor response or DLT. The primary objective is to assess the safety and dose limiting toxicity (DLT) using ascending doses of AlphaMedix™. The secondary objectives are to determine the pharmacokinetic properties and preliminary effectiveness of AlphaMedix™.

Arms & Interventions

Arms

Experimental: AlphaMedix

There is only a single treatment arm.

Interventions

Drug: - AlphaMedix

There is only a single treatment intervention.

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

Houston, Texas

Status

Recruiting

Address

Excel Diagnostics and Nuclear Oncology Center

Houston, Texas, 77042

Site Contact

Ebrahim S Delpassand, MD

[email protected]

713-499-9733

Houston, Texas

Status

Recruiting

Address

Excel Diagnostics and Nuclear Oncology Center

Houston, Texas, 77042

Site Contact

Susan S Cork

[email protected]

713-341-3203

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