ClinicalTrials.gg
TerminatedNCT00613509Updated Apr 14, 2016Results posted

Study of a Multi-Antigen Therapeutic Vaccine in Patients With Metastatic Melanoma

A Phase 2 interventional study of ALVAC(2) Melanoma multi-antigen therapeutic vaccine and Intron A, Interferon alpha -2b in Melanoma and Cancer, sponsored by Sanofi Pasteur, a Sanofi Company. Terminated at 19 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2016-04-14.

Sponsored by Sanofi Pasteur, a Sanofi Company (part of Sanofi) · Phase 2, Interventional, and Treatment

Why this study was terminated
No safety concerns, the study was terminated due to slow enrollment. All enrolled patients were followed per protocol.
Phase
Phase 2
Study type
Interventional
Enrollment
23
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Primary objective:

To evaluate the clinical activity of the vaccine regimen, as indicated by progression-free survival versus the clinical activity of the reference treatment.

Secondary objectives:

Safety: To describe the safety profile in both treatment groups.

Efficacy: To determine the objective clinical responses of patients in both treatment groups: complete response and partial response.

Read the detailed description

Eligible participants will be randomized to receive either a vaccine treatment consisting of a series of multi-antigen melanoma vaccine and GM-CSF injections, followed by high-dose IFN-α2b or only the high-dose IFN-α2b.

02

Conditions studied

  • Melanoma
  • Cancer

Keywords

  • Melanoma, Cancer
03

In context

Melanoma

3,073 studies on the registry are indexed under Melanoma; 529 are open to participants now.

This study's enrollment of 23 is below the median of 38 across 2,400 interventional studies indexed under Melanoma.

Browse Melanoma studies →

Lead sponsor

Sanofi Pasteur, a Sanofi Company is the lead sponsor of 374 studies on the registry; 4 are open to participants now.

Of its 94 completed or terminated interventional studies of FDA-regulated products, 73 (78%) have results posted.

First submitted after Sanofi Pasteur became part of Sanofi.

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

  • A pathologically confirmed diagnosis of malignant melanoma with at least one measurable metastatic lesion with a minimum lesion size of 20 mm, based on radiological assessment (or 10 mm if assessed by spiral computed tomography [CT] scan ) as per Response Evaluation Criteria in Solid Tumors (RECIST) criteria (Stages IIIc, IVa, or IVb only, according to the American Joint Committee on Cancer (AJCC) staging system for melanoma). Cutaneous metastasis (assessed by physical examination) must be at least 10 mm. CT scan or magnetic resonance imaging (MRI) is required to rule out brain metastases.
  • Patients who received prior treatment for their metastatic disease must have objective evidence of disease progression.
  • Aged ≥ 18 years on the day of inclusion
  • IRB-approved informed consent form signed
  • Able to attend all scheduled visits and to comply with all trial procedures
  • For a woman, inability to bear a child or negative serum pregnancy test
  • For a woman of child-bearing potential, using an effective method of contraception or abstinence during the study and at least 4 weeks after the last study treatment
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 and a life expectancy of at least 6 months.
  • Adequate hematologic, hepatic, and renal function (at pre-defined laboratory values).
  • Fully recovered from surgery, if applicable.

Exclusion criteria

Exclusion Criteria :

  • Receipt of two or more previous therapies for metastatic melanoma.
  • Receipt of chemotherapy or another therapy for metastatic melanoma within the last four weeks
  • Receipt of adjuvant interferon therapy within the last six months
  • Concurrent receipt of radiotherapy for the metastatic disease, unless for palliative purposes
  • Participation in another clinical trial within the four weeks preceding the first trial treatment
  • Planned participation in another clinical trial during the present trial period
  • Known Human Immunodeficiency Virus (HIV) infection or hepatitis B (Ag HBs) or hepatitis C seropositivity
  • Presence of active autoimmune disease (excluding vitiligo)
  • Systemic hypersensitivity to bovine products or to any of the vaccine components, including egg products or Neomycin (used to prepare the vaccine), or history of a life-threatening reaction to granulocyte-macrophage colony stimulating factor (GM-CSF) or interferon (IFN)-α2b
  • Current alcohol or drug addiction that may interfere with the ability to comply with trial procedures
  • Significant co-morbid medical conditions, including pre-existing renal disease, cirrhosis, or major depression, which in the estimation of the investigator would preclude safe participation in the study or the accurate interpretation of data.
  • A calculated glomerular filtration rate (GFR) \<60 mL/min (based on the Cockroft-Gault formula).
  • Previous receipt of a modified canarypox virus (ALVAC)-based vaccine.
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
23 participants (actual)

Study arms

  • Experimental
    Study Group 1: ALVAC melanoma vaccine

    Participants will receive a multi-antigen of modified canarypox virus (ALVAC\[2\]) melanoma vaccine and granulocyte macrophage colony stimulating factor (GM-CSF) every 3 weeks, followed by 4 weeks of high-dose interferon alpha-2b 5 times per week.

    Biological: ALVAC(2) Melanoma multi-antigen therapeutic vaccine

  • Active comparator
    Study Group 2: Interferon alpha-2b

    Participants on 4 weeks of high-dose interferon alpha-2b 5 times per week. Participants who showed disease progression after Cycle 1 will be permitted to cross over to Group 1 treatment.

    Biological: Intron A, Interferon alpha -2b

Interventions

  • BiologicalALVAC(2) Melanoma multi-antigen therapeutic vaccine

    0.5 mL, 2 cycles

  • 0.5 mL, 5 times per week for 4 weeks

    Also known as: Intron-A®: IFN-α2b

06

What researchers measure

Primary outcomes

  1. Summary of Disease Progression in Study Participants, Intent-to-treat Population

    Number of evaluable study participants who had died or experienced objective disease progression (no clinical objective response to treatment as evaluated by computed tomography \[CT\] scans or physical examination).

    Time frame: Day 0 up to 35 weeks post 1st vaccination or treatment

  2. Progression-Free Survival Time by Response Evaluation Criteria in Solid Tumor (RECIST) Criteria in the Intent-to-treat Population

    Progression-Free Survival was assessed by the Response Evaluation Criteria in Solid Tumor criteria from the computed tomography (CT) scans, as per-protocol

    Time frame: Day 0 - up to 35 weeks post 1st vaccination or treatment

Secondary outcomes

  1. Best Overall Objective Response as Number of Participants Responding in the Intent-to-treat Population

    Objective response rate (ORR) is the sum of complete response (CR) and partial response (PR) Complete response = Disappearance of all target lesions. Partial response = At least a 30% decrease in the sum of longest diameter of target lesions, taking as reference the baseline sum longest diameter.

    Time frame: Day 0 to 32 weeks post 1st vaccination or treatment

  2. Best Overall Objective Response in the Intent-to-treat Population

    Objective response rate (ORR) is the sum of complete response (CR) and partial response (PR) Complete response = Disappearance of all target lesions. Partial response = At least a 30% decrease in the sum of longest diameter of target lesions, taking as reference the baseline sum longest diameter.

    Time frame: Day 0 to 32 weeks post 1st vaccination or treatment

  3. Best Overall Objective Response as Mean Duration of Response (Weeks) in the Intent-to-treat Population

    Objective response rate (ORR) is the sum of complete response (CR) and partial response (PR) Complete response = Disappearance of all target lesions. Partial response = At least a 30% decrease in the sum of longest diameter of target lesions, taking as reference the baseline sum longest diameter.

    Time frame: Day 0 to 32 weeks post 1st vaccination or treatment

  4. Number of Participants Reporting a Grade 3 or Grade 4 Adverse Events by Preferred Term

    Common Terminology Criteria for Adverse Events (CTCAE) definitions: Grade 3 is a severe adverse event; Grade 4 is a life-threatening or disabling adverse event.

    Time frame: Day 0 to 12 months post last vaccination

Other outcomes

  1. Number of Participants With a Vaccine-Induced Increase of CD8 T-Cell Positive Response by Antigen

    The vaccine-induced increase of CD8 T-Cell positive response by antigen post-vaccination during the observation period compared to the screening values.

    Time frame: Day 0 to 32 weeks post 1st vaccination

  2. Number of Participants With a Vaccine-Induced Increase of CD4 T-Cell Positive Response by Antigen

    The Vaccine-induced increase of CD4 T-Cell positive response by antigen post-vaccination during the observation period compared to the screening values.

    Time frame: Day 0 to 32 weeks post 1st vaccination

  3. Summary of Cellular Immune Response to the Vaccination or Treatment (Percent Regulatory T-Cells Responses)

    The immunogenicity of the treatment regimens was assessed by regulatory T-cell responses as assessed primarily by the multi-parametric intracellular cytokine staining (ICS) assay.

    Time frame: Day 0 to 32 weeks post 1st vaccination or treatment

07

Results

Posted Dec 17, 2010

Participant flow

Participants were enrolled from 20 May 2008 to 31 March 2009 at 8 medical centers in the US and 3 medical centers in Canada.

Cycle 1
Participant flow — Cycle 1
MilestoneStudy Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2b
Started1112
Completed64
Not completed58
Withdrew: Adverse event21
Withdrew: Disease progression26
Withdrew: Unacceptable toxicity10
Withdrew: Other administrative reason01
Cycle 2 (Group 2 = Crossover)
Participant flow — Cycle 2 (Group 2 = Crossover)
MilestoneStudy Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2b
Started114
Completed114
Not completed00

Outcome measures

Other pre-specifiedNumber of Participants With a Vaccine-Induced Increase of CD8 T-Cell Positive Response by Antigen

The vaccine-induced increase of CD8 T-Cell positive response by antigen post-vaccination during the observation period compared to the screening values.

Time frame:
Day 0 to 32 weeks post 1st vaccination
Reported as:
Number · Participants
Number of Participants With a Vaccine-Induced Increase of CD8 T-Cell Positive Response by Antigen
ParticipantsStudy Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2b
Screening: gp100 pool100
Screening: gp100 pool200
Screening: gp100 pool300
Screening: gp100 pool400
Screening: gp100 pool500
Screening: gp100 pool600
Screening: NYESO-1 pool 100
Screening: NYESO-1 pool 200
Screening: Mart1 pool00
Screening: Native 15mer pool00
Screening: 9mer pool00
7 Weeks post 1st Vaccination: gp100 pool100
7 Weeks post 1st Vaccination: gp100 pool200
7 Weeks post 1st Vaccination: gp100 pool300
7 Weeks post 1st Vaccination: gp100 pool400
7 Weeks post 1st Vaccination: gp100 pool510
7 Weeks post 1st Vaccination: gp100 pool600
7 Weeks post 1st Vaccination: NYESO-1 pool 100
7 Weeks post 1st Vaccination: NYESO-1 pool 200
7 Weeks post 1st Vaccination: Mart1 pool00
7 Weeks post 1st Vaccination: Native 15mer pool00
7 Weeks post 1st Vaccination: 9mer pool00
Other pre-specifiedNumber of Participants With a Vaccine-Induced Increase of CD4 T-Cell Positive Response by Antigen

The Vaccine-induced increase of CD4 T-Cell positive response by antigen post-vaccination during the observation period compared to the screening values.

Time frame:
Day 0 to 32 weeks post 1st vaccination
Reported as:
Number · Participants
Number of Participants With a Vaccine-Induced Increase of CD4 T-Cell Positive Response by Antigen
ParticipantsStudy Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2b
Screening: gp100 pool100
Screening: gp100 pool200
Screening: gp100 pool300
Screening: gp100 pool400
Screening: gp100 pool500
Screening: gp100 pool600
Screening: NYESO-1 pool 100
Screening: NYESO-1 pool 200
Screening: Mart1 pool00
Screening: Native 15mer pool00
Screening: 9mer pool00
7 Weeks post 1st Vaccination: gp100 pool101
7 Weeks post 1st Vaccination: gp100 pool200
7 Weeks post 1st Vaccination: gp100 pool300
7 Weeks post 1st Vaccination: gp100 pool400
7 Weeks post 1st Vaccination: gp100 pool510
7 Weeks post 1st Vaccination: gp100 pool600
7 Weeks post 1st Vaccination: NYESO-1 pool 100
7 Weeks post 1st Vaccination: NYESO-1 pool 200
7 Weeks post 1st Vaccination: Mart1 pool00
7 Weeks post 1st Vaccination: Native 15mer pool00
7 Weeks post 1st Vaccination: 9mer pool00
SecondaryBest Overall Objective Response as Number of Participants Responding in the Intent-to-treat Population

Objective response rate (ORR) is the sum of complete response (CR) and partial response (PR) Complete response = Disappearance of all target lesions. Partial response = At least a 30% decrease in the sum of longest diameter of target lesions, taking as reference the baseline sum longest diameter.

Time frame:
Day 0 to 32 weeks post 1st vaccination or treatment
Reported as:
Number · Particpants
Best Overall Objective Response as Number of Participants Responding in the Intent-to-treat Population
ParticpantsStudy Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2b
Participants with measurable disease at baseline1111
Complete Response (CR)00
Partial Response (PR)21
Stable Disease (SD)33
Not Evaluable (NE)01
Progression (PD)66
SecondaryBest Overall Objective Response in the Intent-to-treat Population

Objective response rate (ORR) is the sum of complete response (CR) and partial response (PR) Complete response = Disappearance of all target lesions. Partial response = At least a 30% decrease in the sum of longest diameter of target lesions, taking as reference the baseline sum longest diameter.

Time frame:
Day 0 to 32 weeks post 1st vaccination or treatment
Reported as:
Number · Percentage of participants
Best Overall Objective Response in the Intent-to-treat Population
Percentage of participantsStudy Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2b
Best Overall Objective Response in the Intent-to-treat Population18.29.1
PrimarySummary of Disease Progression in Study Participants, Intent-to-treat Population

Number of evaluable study participants who had died or experienced objective disease progression (no clinical objective response to treatment as evaluated by computed tomography \[CT\] scans or physical examination).

Time frame:
Day 0 up to 35 weeks post 1st vaccination or treatment
Reported as:
Number · Participants
Summary of Disease Progression in Study Participants, Intent-to-treat Population
ParticipantsStudy Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2b
Progressed or died due to any cause76
Did not progress or die due to any cause46
Other pre-specifiedSummary of Cellular Immune Response to the Vaccination or Treatment (Percent Regulatory T-Cells Responses)

The immunogenicity of the treatment regimens was assessed by regulatory T-cell responses as assessed primarily by the multi-parametric intracellular cytokine staining (ICS) assay.

Time frame:
Day 0 to 32 weeks post 1st vaccination or treatment
Reported as:
Mean · Percent Cell Count
Summary of Cellular Immune Response to the Vaccination or Treatment (Percent Regulatory T-Cells Responses)
Percent Cell CountStudy Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2b
Screening2.7 ± 1.023.4 ± 1.24
Cycle 1 Week 13.3 ± 1.422.3 ± 0.65
Cycle 1 Week 72.9 ± 0.833.1 ± 1.13
Cycle 2 Week 233.3 ± 0.903.8 ± 0.51
Cycle 2 Week 324.0 ± 0.482.6 ± 0.07
PrimaryProgression-Free Survival Time by Response Evaluation Criteria in Solid Tumor (RECIST) Criteria in the Intent-to-treat Population

Progression-Free Survival was assessed by the Response Evaluation Criteria in Solid Tumor criteria from the computed tomography (CT) scans, as per-protocol

Time frame:
Day 0 - up to 35 weeks post 1st vaccination or treatment
Reported as:
Median · Weeks
Progression-Free Survival Time by Response Evaluation Criteria in Solid Tumor (RECIST) Criteria in the Intent-to-treat Population
WeeksStudy Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2b
Progression-Free Survival Time by Response Evaluation Criteria in Solid Tumor (RECIST) Criteria in the Intent-to-treat Population15.9 (8.0 to NA)8.9 (8.3 to NA)
Statistical analysis
  • Study Group 1: ALVAC Melanoma Vaccine vs Study Group 2: Interferon Alpha-2b · Log Rank · p = 0.9406
  • Study Group 1: ALVAC Melanoma Vaccine vs Study Group 2: Interferon Alpha-2b · Likelihood ratio test · p = 0.9179
SecondaryBest Overall Objective Response as Mean Duration of Response (Weeks) in the Intent-to-treat Population

Objective response rate (ORR) is the sum of complete response (CR) and partial response (PR) Complete response = Disappearance of all target lesions. Partial response = At least a 30% decrease in the sum of longest diameter of target lesions, taking as reference the baseline sum longest diameter.

Time frame:
Day 0 to 32 weeks post 1st vaccination or treatment
Reported as:
Mean · Weeks
Best Overall Objective Response as Mean Duration of Response (Weeks) in the Intent-to-treat Population
WeeksStudy Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2b
Best Overall Objective Response as Mean Duration of Response (Weeks) in the Intent-to-treat Population16.3 (6.4 to 26.1)18.3 (18.3 to 18.3)
SecondaryNumber of Participants Reporting a Grade 3 or Grade 4 Adverse Events by Preferred Term

Common Terminology Criteria for Adverse Events (CTCAE) definitions: Grade 3 is a severe adverse event; Grade 4 is a life-threatening or disabling adverse event.

Time frame:
Day 0 to 12 months post last vaccination
Reported as:
Number · Participants
Number of Participants Reporting a Grade 3 or Grade 4 Adverse Events by Preferred Term
ParticipantsStudy Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2b
Anemia01
Leukocytosis10
Abdominal Pain Upper10
Axillary Pain10
Chest Discomfort10
Chest Pain10
Inflammation10
Pyrexia01
Sepsis10
Septic Shock01
Staphylococcal Bacteremia01
Alanine Aminotransferase (ALT) Increased03
Aspartate Aminotransferase (AST) Increased01
Gamma-Glutamyl Transferase (GGT) Increased11
Neutrophil Count Decreased10
White Blood Cell Count Decreased10
Hypernatremia10
Hypoalbuminemia01
Hypocalcemia01
Hyponatremia01
Joint Range of Motion Decreased10
Metastatic Malignant Melanoma01
Brain Edema10
Cerebral Hemorrhage10
Encephalopathy10
Headache10
Hemiplegia10
Paraesthesia01
Peripheral Sensory Neuropathy01
Syncope Vasovagal01
Polyuria10
Hypotension10

Adverse events

Collected over Adverse events data were collected from the day of vaccination for 12 months post-vaccination. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Study Group 1: ALVAC Melanoma Vaccine—5/11 (45.5%)5/11 (45.5%)
Study Group 2: Interferon Alpha-2b—5/12 (41.7%)7/12 (58.3%)
Most frequent serious events
Most frequent serious events
EventStudy Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2b
Disease ProgressionGeneral disorders2/112/12
Metastatic Malignant MelanomaNeoplasms benign, malignant and unspecified (incl cysts and polyps)2/110/12
Chest PainGeneral disorders1/111/12
SepsisInfections and infestations1/110/12
Gastrointestinal PerforationGastrointestinal disorders0/111/12
Septic ShockInfections and infestations0/111/12
PneumoniaInfections and infestations0/111/12
Most frequent other events
Showing 10 of 28
Most frequent other events
EventStudy Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2b
ALT IncreasedInvestigations0/113/12
LeukocytosisBlood and lymphatic system disorders1/110/12
Abdominal Pain UpperGastrointestinal disorders1/110/12
Axillary PainGeneral disorders1/110/12
Chest DiscomfortGeneral disorders1/110/12
InflammationGeneral disorders1/110/12
GGT IncreasedInvestigations1/111/12
Neutrophil Count DecreasedInvestigations1/110/12
White Blood Cell Count DecreasedInvestigations1/110/12
HypernatremiaMetabolism and nutrition disorders1/110/12

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Study Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2bTotal
<=18 years000
Between 18 and 65 years91019
>=65 years224
Age, Continuous
Age, Continuous(Years)Study Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2bTotal
Mean52.6 ± 14.2352.9 ± 14.3452.8 ± 14.3
Sex: Female, Male
Sex: Female, Male(Participants)Study Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2bTotal
Female6511
Male5712
Region of Enrollment
Region of Enrollment(participants)Study Group 1: ALVAC Melanoma VaccineStudy Group 2: Interferon Alpha-2bTotal
United States91019
Canada224
08

Study locations

19 sites
  • Tucson, Arizona 85724, United States
  • Los Angeles, California 90024, United States
  • Aurora, Colorado 80045, United States
  • Atlanta, Georgia 30322, United States
  • Chicago, Illinois 60611, United States
  • St Louis, Missouri 63110, United States
  • Omaha, Nebraska 68198, United States
  • Lebanon, New Hampshire 03756, United States
  • Portland, Oregon 97213, United States
  • Bethlehem, Pennsylvania 18015, United States
  • Pittsburgh, Pennsylvania 15232, United States
  • Greenville, South Carolina 29605, United States
  • Dallas, Texas 75246, United States
  • San Antonio, Texas 78229, United States
  • Madison, Wisconsin 53792, United States
  • Hamilton, Ontario L8V 5C2, Canada
  • London, Ontario, Canada
  • Toronto, Ontario M4N 3M5, Canada
  • Montreal, Quebec H3A 1A1, Canada
09

References and documents

10

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Jun 2008, a primary completion of Apr 2010 and a completion of Jun 2010. It does not say whether these dates are actual or estimated.

Results were first posted in Dec 2010, 8 months after primary completion.

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

Registered
Jan 16, 2008
First posted
Feb 13, 2008
Start
Jun 2008
Primary completionActual
Apr 2010
CompletionActual
Jun 2010
Results first posted
Dec 17, 2010
Last update
Apr 14, 2016
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 Apr 14, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00613509
Responsible party
Sponsor
First posted
Feb 13, 2008
Start date
Jun 2008
Primary completion
Apr 2010
Completion
Jun 2010
Results posted
Dec 17, 2010
Last update
Apr 14, 2016

Study contacts

Medical Director
study director · Sanofi Pasteur Inc.

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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