ClinicalTrials.gg
CompletedNCT03360734GATTOUpdated Jul 12, 2021

Combination of Gatipotuzumab and Tomuzotuximab in Patients With Solid Tumors

A Phase 1 interventional study of First part: Gatipotuzumab and Tomuzotuximab; Second part: Gatipotuzumab and Tomuzotuximab or anti-EGFR antibody (Cetuximab, Panitumumab or Necitumumab) in Solid Tumor, Adult, sponsored by Glycotope GmbH. Completed at 4 sites in 3 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-07-12.

Sponsored by Glycotope GmbH · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
50
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

This was a single arm phase Ib study to evaluate the safety and efficacy of combined Tomuzotuximab and Gatipotuzumab therapy in patients with metastatic solid tumors expressing EGFR for whom no standard treatment is available. Patients who had relapsed following their most recent line of chemotherapy and who met all other entry criteria at Screening were enrolled to receive Tomuzotuximab and Gatipotuzumab in combination.

During the extension phase, instead of Tomuzotuximab a commercially avalaible anti-EGFR antibody, i.e. Cetuximab (including any approved biosimilar), Panitumumab, or Necitumumab could be given to patients with cancers for which their use is approved.

Read the detailed description

Tomuzotuximab (CetuGEX®) is an improved second-generation anti-epidermal growth factor receptor (EGFR) antibody that specifically binds to EGFR and acts as a competitive antagonist at the EGFR ligand binding site.

Gatipotuzumab (PankoMab-GEX®) is a novel glyco-engineered humanized monoclonal antibody, which recognizes the tumor-specific epitope of mucin-1 (TA-MUC1). Gatipotuzumab targets and binds TA-MUC1 epitopes on the surface of tumor cells, potentially activating the immune system to induce ADCC against TA-MUC1 expressing tumor cells.

Based on compelling preclinical evidence suggesting a complex interaction between EGFR and TA-MUC1 expressed on the tumor cell surface in driving carcinogenesis, this study assessed the tolerability, safety and preliminary activity of targeting EGFR and TA-MUC1 with glycoengineered antibodies.

After the safe treatment of 20 patients and the absence of dose-limiting toxicity (DLT), the combination of the two antibodies was considered safe and was started in the second week of treatment for the additional 30 patients to be enrolled in the extension cohort.

02

Conditions studied

  • Solid Tumor, Adult
03

In context

Lead sponsor

Glycotope GmbH is the lead sponsor of 9 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Male or female and age ≥18 years
  2. confirmed locally advanced and/or solid organ tumor including but not limited to the following histology: Non-Small Cell Lung cancer (NSCLC), Gastrointestinal cancer (GI), Breast cancer (BC), Gynecological cancers (GYN). Date of histology should be not older than 18 months from the start of the screening procedures. Additionally 30 patients will be enrolled in 4 expansion cohorts: 1) metastatic Colorectal cancer (mCRC) patients who have failed prior treatment with standard chemotherapeutics and both anti-VEGF and anti-EGFR antibodies; 2) patients with recurrent and/or metastatic Head and Neck cancers, who have failed prior treatment with a and at least one as appropriate depending on the histology and platinum-elegibility; salivary gland tumors can be enrolled in this cohort after failure of at least one line of chemotherapy; 3) refractory metastatic NonSmall Cell Lung cancer (NSCLC) patients who have failed all standard treatment options including chemotherapy, tyrosine kinase inhibitors and immunotherapy as appropriate depending on the histology and mutational status, 4) refractory metastatic Breast cancer (BC) patients who have failed all standard treatment options including chemotherapy, hormone therapy and anti-human epidermal growth factor receptor 2 [] treatment as appropriate depending on the histology.
  3. Patients are required to have a positive EGFR IHC expression (≥25% of tumor cells) as assessed by local laboratory. This condition will not be required anymore in the additional 30 patients of the expansion cohorts
  4. according to 1.1. At least 1 lesion, not previously irradiated, that can be accurately measured at baseline as ≥10 mm in the longest diameter (except lymph nodes which must have a short axis ≥15 mm) with computed tomography (CT) or magnetic resonance imaging (MRI) and that is suitable for accurate repeated measurements as per RECIST 1.1 guidelines
  5. Failure of standard therapy or non-availability of standard therapy (patients must have received at least one line of chemotherapy and further standard therapy is not an option at study entry)
  6. Prior treatment with any anti-EGFR agent should be completed at least 4 months before start of treatment. This condition will no longer be required in the 30 additional patients of the expansion cohorts.
  7. Toxicities, except for alopecia and Grade 2 neuropathy, should be not greater than Grade 1 before start of treatment according to the National Cancer Institute (NCI-CTCAE [v. 4.0])
  8. (ECOG) Performance Status ≤1 and estimated of ≥3 months
  9. Adequate organ function as evidenced by the following:

    1. Bone marrow function: ≥90 g/L; white blood cell (WBC) count ≥3.0 x 109/L; (ANC) ≥1.0 x 109/L; count ≥75 x 109/L
    2. Hepatic function: (AST) and alanine aminotransferase (ALT) ≤2.5 x (ULN) (≤5 x ULN if hepatic metastases present); ≤1.5 x ULN; alkaline phosphatase ≤5.0 x ULN
    3. Renal function: creatinine \<1.5 x ULN
    4. Cardiologic function: fraction ≥ 50% assessed by radionuclide angiography (MUGA scan) or Echocardiography
  10. Patients of both genders with procreative potential must use effective while enrolled in the study and for at least 6 months (for women) or 16 weeks (for men) after the last study drug infusion
  11. Written obtained prior to conducting any study specific procedures

Exclusion criteria

Exclusion Criteria:

  1. First 20 patients: Known activating EGFR mutation. This exclusion criterion will no more apply for the 30 additional patients of the expansion cohorts.
  2. Involvement in the planning and/or conduct of the study (applies to both Glycotope staff and/or staff at the study site)
  3. Concurrent enrolment in another clinical study, unless it is an observational (noninterventional) clinical study or during the follow-up period of an interventional study
  4. Patients institutionalized by official means or court order.
  5. Chemotherapy, radiation, or any other anti-cancer therapies, including any agent, within 4 weeks prior start of study treatment
  6. Concurrent anti-tumor therapy or concurrent immunotherapy
  7. Current or prior use of medication within 28 days before the first dose of study drug. The following are exceptions to this criterion:

    1. Intranasal, inhaled, topical , or local steroid injections (e.g., intra articular injection)
    2. Systemic corticosteroids at physiologic doses not to exceed 10 mg/day of prednisone or its equivalent
    3. Steroids as premedication for reactions (e.g., CT scan premedication)
  8. Major surgery within 4 weeks prior to entering the study and/or incomplete recovery from surgery or planned major surgery
  9. Primary or secondary immune deficiency requiring treatment. Active or prior documented or inflammatory disorders (including inflammatory bowel disease [e.g., colitis or Crohn's disease], diverticulitis [with the exception of diverticulosis], systemic lupus erythematosus, Sarcoidosis syndrome, or Wegener syndrome [granulomatosis with polyangiitis, Graves' disease, rheumatoid arthritis, hypophysitis, uveitis, etc.]). The following are exceptions to this criterion:

    1. Patients with vitiligo or alopecia
    2. Patients with hypothyroidism (e.g., following Hashimoto syndrome) stable on hormone replacement
    3. Any chronic skin condition that does not require systemic therapy
    4. Patients without active disease in the last 5 years may be included but only after consultation with the study physician
    5. Patients with celiac disease controlled by diet only
  10. Clinically active infections >Grade 2 according to the (NCI-CTCAE v. 4.0)
  11. Patients with known severe allergy or hypersensitivity to other human monoclonal antibodies or who experienced infusion related reactions or other severe toxicity that required permanent interruption of a prior antibody treatment.
  12. Active infection including tuberculosis (clinical evaluation that includes clinical history, physical examination and radiographic findings, and TB testing in line with local practice), (known positive HBV surface antigen [HBsAg] result), , or (positive HIV 1/2 antibodies). Patients with a past or resolved HBV infection (defined as the presence of hepatitis B core antibody [anti-HBc] and absence of HBsAg) are eligible. Patients positive for hepatitis C (HCV) antibody are eligible only if polymerase chain reaction is negative for HCV RNA.
  13. History of another primary except for: a. Malignancy treated with curative intent and with no known active disease ≥3 years before the first dose of IMP and of low potential risk for recurrence b. Adequately treated non-melanoma skin cancer or lentigo maligna without evidence of disease c. Adequately treated carcinoma in situ without evidence of disease d. Localized prostate cancer
  14. Uncontrolled medical condition considered as high risk for treatment with an investigational drug including unstable diabetes mellitus, vena-cava-syndrome, or chronic symptomatic respiratory disease
  15. Clinical signs of or
  16. Symptomatic congestive heart failure ( [NYHA] Class III or IV), unstable angina pectoris or MI within 6 months prior to enrollment, significant cardiac arrhythmia, history of stroke, or within 1 year
  17. History of seizures, encephalitis, or multiple sclerosis
  18. Active drug abuse or chronic alcoholism
  19. Pregnant or breastfeeding
  20. Known sensitivity to any component of the drugs used
  21. to the premedication (H1 and/or H2 receptor antagonists and steroids) or commercial anti-EGFR used in this study
  22. Legal incompetence, limited legal competence, or detainment in an institution for official or legal reasons
Terms in these criteria, in plain language(34)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

PD-1, PD-L1 and checkpoint inhibitors

PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.

PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

HER2

HER2 is a protein, made from the ERBB2 gene, that drives the growth of some cancers. A study may look for a level of the protein, extra copies of the gene, or a particular change in it.

In breast cancer, protein tests are read as HER2-positive, HER2-low or HER2-negative; other cancers use their own rules. Check which test result the study requires.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

CTCAE grade

The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.

1
Mild.
2
Moderate.
3
Severe.
4
Life-threatening.
5
Death due to the event.

“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

Leptomeningeal disease

Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.

Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

TIA (transient ischaemic attack)

A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.

Stroke symptoms need emergency care at once, even if they go away.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
50 participants (actual)

Study arms

  • Experimental
    Combination

    First part: Combination of Gatipotuzumab (GAT) and Tomuzotuximab (TOM) Treatment: 5 weeks monotherapy with TOM (Day 1: 60mg, Day 2: 660mg, Week 2: 1200mg, Week 4: 1200mg). Then combination of 1200mg TOM with 1400mg of GAT every two weeks until disease progression, as long as patient does not meet any other discontinuation criterion such as unacceptable toxicity. Second part: Combination of GAT and TOM or an approved anti-EGFR antibody, i.e. Cetuximab, Panitumumab, or Necitumumab Treatment: One week monotherapy with TOM (Week 1, Day 1: 60mg, Day 2: 660mg). Then 1200mg TOM in combination with 1400mg of GAT every two weeks until disease progression, as long as patient does not meet any other discontinuation criterion such as unacceptable toxicity or commercial anti-EGFR antibody (dosage according to local practices) in combination with 1400mg of GAT every two weeks until disease progression or until unacceptable toxicity

    Drug: First part: Gatipotuzumab and Tomuzotuximab; Second part: Gatipotuzumab and Tomuzotuximab or anti-EGFR antibody (Cetuximab, Panitumumab or Necitumumab)

Interventions

  • DrugFirst part: Gatipotuzumab and Tomuzotuximab; Second part: Gatipotuzumab and Tomuzotuximab or anti-EGFR antibody (Cetuximab, Panitumumab or Necitumumab)

    Two monoclonal antibodies, Gatipotuzumab is anti-TAMUC1, Tomuzotuximab is anti-EGFR

    Also known as: PankoMab-GEX (GAT) and CetuGEX (TOM)

06

What researchers measure

Primary outcomes

  1. Safety: Incidence and Severity of adverse events (AEs) and IRRs

    Incidence of adverse events (AEs) and IRRs

    Time frame: 12 months

  2. Overall tolerability

    Standard safety assessments in terms of laboratory evaluations, vital signs, electrocardiogram \[ECG\], and physical examinations

    Time frame: 12 months

Secondary outcomes

  1. Efficacy of the combined treatment: Objective response rate (ORR)

    Objective response rate (ORR), Progression free Survival and Overall survival

    Time frame: 12 months

  2. Immunogenicity of combined Treatment: incidence of anti-drug antibodies (ADAs)

    incidence of anti-drug antibodies (ADAs)

    Time frame: 12 months

  3. Pharmacokinetics (PK) of combined Treatment: Concentration

    Concentration of Gatipotuzumab and Tomuzotuximab in blood and noncompartmental PK parameters

    Time frame: 12 months

07

Study locations

4 sites
  • Glycotope-contracted research facility
    Berlin, 1xxxx, Germany
  • Glycotope-contracted research facility
    Hamburg, 2xxxx, Germany
  • Glycotope-contracted research facility
    Milan, 2xxxx, Italy
  • Glycotope-contracted research facility
    Barcelona, xxxxx, Spain
08

References and documents

Publications

  • Ochsenreither S, Fiedler WM, Conte GD, Macchini M, Matos I, Habel B, Ahrens-Fath I, Raspagliesi F, Lorusso D, Keilholz U, Rolling C, Kebenko M, Klinghammer KF, Saavedra O, Baumeister H, Zurlo A, Garralda E. Safety and preliminary activity results of the GATTO study, a phase Ib study combining the anti-TA-MUC1 antibody gatipotuzumab with the anti-EGFR tomuzotuximab in patients with refractory solid tumors. ESMO Open. 2022 Apr;7(2):100447. doi: 10.1016/j.esmoop.2022.100447. Epub 2022 Apr 6. Erratum In: ESMO Open. 2022 Aug;7(4):100549. doi: 10.1016/j.esmoop.2022.100549. PubMed 35397434 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Nov 2017 to primary completion in May 2020, 30 months.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 20, 2017
First posted
Dec 4, 2017
StartActual
Nov 2, 2017
Primary completionActual
May 4, 2020
CompletionActual
Sep 29, 2020
Last update
Jul 12, 2021
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 12, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03360734
Lead sponsor
Glycotope GmbH
Responsible party
Sponsor
First posted
Dec 4, 2017
Start date
Nov 2, 2017
Primary completion
May 4, 2020
Completion
Sep 29, 2020
Last update
Jul 12, 2021

Study contacts

Sebastian Ochsenreither, Dr. med.
principal investigator · Charité Benjamin Franklin Comprehensive Cancer Center,Hindenburgdamm 30,12200/12203 Berlin, Germany

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2021. You cannot join it, but the record below documents what was studied.

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