Testing What Happens When an Immunotherapy Drug (Pembrolizumab) is Added to Radiation or Given by Itself Compared to the Usual Treatment of Chemotherapy With Radiation After Surgery for Recurrent Head and Neck Squamous Cell Carcinoma

Sponsor
National Cancer Institute (NCI) (NIH)
Overall Status
Recruiting
CT.gov ID
NCT04671667
Collaborator
(none)
282
108
3
61.7
2.6
0

Study Details

Study Description

Brief Summary

This phase II trial studies the effect of pembrolizumab in combination with radiation therapy or pembrolizumab alone compared to the usual approach (chemotherapy plus radiation therapy) after surgery in treating patients with head and neck squamous cell carcinoma that has come back (recurrent) or patients with a second head and neck cancer that is not from metastasis (primary). Radiation therapy uses high energy radiation or protons to kill tumor cells and shrink tumors. Chemotherapy drugs, such as cisplatin and carboplatin kill tumor cells by stopping them from dividing. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer and may interfere with the ability of tumor cells to grow and spread. Giving pembrolizumab in combination with radiation therapy or pembrolizumab alone after surgery may work better than the usual approach in shrinking recurrent or primary head and neck squamous cell carcinoma.

Condition or Disease Intervention/Treatment Phase
Phase 2

Detailed Description

PRIMARY OBJECTIVES:
  1. To evaluate overall survival (OS) of adjuvant reirradiation plus concurrent pembrolizumab followed by pembrolizumab to complete 12 months total of pembrolizumab to adjuvant reirradiation plus concurrent platinum chemotherapy in high risk head and neck squamous cell carcinoma (HNSCC) patients.

  2. To evaluate OS of adjuvant pembrolizumab for 12 months compared to adjuvant reirradiation plus concurrent platinum chemotherapy in high risk HNSCC patients.

SECONDARY OBJECTIVES:
  1. To evaluate the following endpoints in all arms: disease free survival (DFS), locoregional control, rates of distant metastasis, toxicity.

  2. To evaluate whether high PD-L1 expression (defined as Combined Positive Score [CPS] >=

  1. is predictive of increased efficacy in the experimental groups compared to control.

OUTLINE: Patients are randomized to 1 of 3 arms.

ARM A: Patients receive pembrolizumab intravenously (IV) over 30 minutes on day 1. Treatment repeats every 6 weeks for 9 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo intensity modulated radiation therapy (IMRT) or proton beam radiation therapy (PBRT) once daily (QD) for a total of 30 fractions in the absence of disease progression or unacceptable toxicity.

ARM B: Patients receive cisplatin or carboplatin IV on day 1. Treatment repeats every 7 days for 6 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo IMRT or PBRT QD for a total of 30 fractions in the absence of disease progression or unacceptable toxicity.

ARM C: Patients receive pembrolizumab IV over 30 minutes on day 1. Treatment repeats every 6 weeks for 9 cycles in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up at 30 days, and then every 6 months for up to 5 years from the date of registration

Study Design

Study Type:
Interventional
Anticipated Enrollment :
282 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
A Phase II Randomized Trial of Adjuvant Therapy With Pembrolizumab After Resection of Recurrent/Second Primary Head and Neck Squamous Cell Carcinoma With High Risk Features
Actual Study Start Date :
Jan 8, 2021
Anticipated Primary Completion Date :
Feb 28, 2026
Anticipated Study Completion Date :
Feb 28, 2026

Arms and Interventions

Arm Intervention/Treatment
Experimental: Arm A (pembrolizumab, IMRT, PBRT)

Patients receive pembrolizumab IV over 30 minutes on day 1. Treatment repeats every 6 weeks for 9 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo IMRT or PBRT QD for a total of 30 fractions in the absence of disease progression or unacceptable toxicity.

Radiation: Intensity-Modulated Radiation Therapy
Undergo IMRT
Other Names:
  • IMRT
  • Intensity Modulated RT
  • Intensity-Modulated Radiotherapy
  • Radiation, Intensity-Modulated Radiotherapy
  • Biological: Pembrolizumab
    Given IV
    Other Names:
  • Keytruda
  • Lambrolizumab
  • MK-3475
  • SCH 900475
  • Radiation: Proton Beam Radiation Therapy
    Undergo PBRT
    Other Names:
  • PBRT
  • Proton
  • Proton EBRT
  • Proton External Beam Radiotherapy
  • Proton Radiation Therapy
  • Radiation, Proton Beam
  • Active Comparator: Arm B (cisplatin, carboplatin, IMRT, PBRT)

    Patients receive cisplatin or carboplatin IV on day 1. Treatment repeats every 7 days for 6 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo IMRT or PBRT QD for a total of 30 fractions in the absence of disease progression or unacceptable toxicity.

    Drug: Carboplatin
    Given IV
    Other Names:
  • Blastocarb
  • Carboplat
  • Carboplatin Hexal
  • Carboplatino
  • Carboplatinum
  • Carbosin
  • Carbosol
  • Carbotec
  • CBDCA
  • Displata
  • Ercar
  • JM-8
  • Nealorin
  • Novoplatinum
  • Paraplatin
  • Paraplatin AQ
  • Paraplatine
  • Platinwas
  • Ribocarbo
  • Drug: Cisplatin
    Given IV
    Other Names:
  • Abiplatin
  • Blastolem
  • Briplatin
  • CDDP
  • Cis-diammine-dichloroplatinum
  • Cis-diamminedichloridoplatinum
  • Cis-diamminedichloro Platinum (II)
  • Cis-diamminedichloroplatinum
  • Cis-dichloroammine Platinum (II)
  • Cis-platinous Diamine Dichloride
  • Cis-platinum
  • Cis-platinum II
  • Cis-platinum II Diamine Dichloride
  • Cismaplat
  • Cisplatina
  • Cisplatinum
  • Cisplatyl
  • Citoplatino
  • Citosin
  • Cysplatyna
  • DDP
  • Lederplatin
  • Metaplatin
  • Neoplatin
  • Peyrone's Chloride
  • Peyrone's Salt
  • Placis
  • Plastistil
  • Platamine
  • Platiblastin
  • Platiblastin-S
  • Platinex
  • Platinol
  • Platinol- AQ
  • Platinol-AQ
  • Platinol-AQ VHA Plus
  • Platinoxan
  • Platinum
  • Platinum Diamminodichloride
  • Platiran
  • Platistin
  • Platosin
  • Radiation: Intensity-Modulated Radiation Therapy
    Undergo IMRT
    Other Names:
  • IMRT
  • Intensity Modulated RT
  • Intensity-Modulated Radiotherapy
  • Radiation, Intensity-Modulated Radiotherapy
  • Radiation: Proton Beam Radiation Therapy
    Undergo PBRT
    Other Names:
  • PBRT
  • Proton
  • Proton EBRT
  • Proton External Beam Radiotherapy
  • Proton Radiation Therapy
  • Radiation, Proton Beam
  • Experimental: Arm C (pembrolizumab)

    Patients receive pembrolizumab IV over 30 minutes on day 1. Treatment repeats every 6 weeks for 9 cycles in the absence of disease progression or unacceptable toxicity.

    Biological: Pembrolizumab
    Given IV
    Other Names:
  • Keytruda
  • Lambrolizumab
  • MK-3475
  • SCH 900475
  • Outcome Measures

    Primary Outcome Measures

    1. Overall survival (OS) [From randomization to date of death from any cause, measured at 2 years]

      Kaplan-Meier estimates will be used to estimate the OS distributions. A log-rank test with one-sided 5% type I error will be used for each of the two primary comparisons.

    2. Incidence of adverse events [Up to 5 years from date of registration]

      Assessed using Common Terminology Criteria for Adverse Events. An 80% confidence interval around the hazard ratio of the two experimental arms will be calculated. Toxicity will be compared between the two treatment arms. Toxicity will be examined by arm and compared using the Fisher's exact test.

    Secondary Outcome Measures

    1. Disease free survival [From the date of randomization to the date of recurrence, second primary tumor from the head and neck region, or death, assessed up to 5 years from date of registration]

    2. PD-L1 expression [Up to 5 years from date of registration]

      Defined as Combined Positive Score >= 20 as a predictive marker of efficacy.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years to 79 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    • Patient must be between 18 and 79 years of age

    • Patient must have locoregionally recurrent or second primary HNSCC (oral cavity, oropharynx, larynx, hypopharynx) in a previously radiated field

    • Patient must have undergone surgery with gross total resection and must be randomized within 8 weeks of surgery

    • Patients must have high risk disease defined as:

    • Positive margins and/or extra nodal extension (ENE)

    • Positive margins are defined as malignancy at or within 1 mm of the margin. High grade dysplasia (i.e. carcinoma in situ) at the margin is also considered positive

    • ENE may be either gross or microscopic

    • Patient must have a PD-L1 Combined Positive Score (CPS) >= 1 in a Clinical Laboratory Improvement Act (CLIA) certified laboratory. Testing can be done locally as long as it is done in a CLIA certified laboratory. This testing must be on the tumor specimen from the resection of the patient's recurrent or second primary HNSCC

    • Patient must have had prior radiation to the area of recurrent or second primary tumor. This is defined as > 50% of the presurgical tumor volume having previously received a dose of > 45 Gy as determined by the treating radiation oncologist

    • Patient must have completed prior radiation a minimum of 6 months prior to randomization

    • Patient must have an Eastern Cooperative Oncology Group (ECOG) performance status 0-1

    • Patient must have the ability to understand and the willingness to sign a written informed consent document. Patients with impaired decision-making capacity (IDMC) who have a legally authorized representative (LAR) or caregiver and/or family member available will also be considered eligible

    • Patient must not expect to conceive or father children by using by using accepted and effective method(s) of contraception or by abstaining from sexual intercourse while on study treatment, and continue for 120 days after the last dose of study treatment

    • Absolute neutrophil count (ANC) >= 1,500/mcL (obtained =< 28 days prior to protocol randomization)

    • Platelets >= 100,000/mcL (obtained =< 28 days prior to protocol randomization)

    • Total bilirubin =< 1.5 x institutional upper limit of normal (ULN) (obtained =< 28 days prior to protocol randomization)

    • Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamic pyruvic transaminase [SGPT]) =< 3.0 x institutional ULN (obtained =< 28 days prior to protocol randomization)

    • Creatinine clearance > 30 ml/min using the Cockcroft-Gault formula (obtained =< 28 days prior to protocol randomization)

    • Patients with known history or current symptoms of cardiac disease, or history of treatment with cardiotoxic agents, should have a clinical risk assessment of cardiac function using the New York Heart Association Functional classification. Patients with New York Heart Association class III or IV heart failure are not eligible

    • Human immunodeficiency virus (HIV)-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months are eligible for this trial as long as they have not been HIV-infected with a history of Kaposi sarcoma and/or multicentric Castleman disease

    Exclusion Criteria:
    • Patient must not have any evidence of distant disease based on baseline imaging done within 28 days prior to randomization

    • Patient must not have received anti-PD-1/PD-L1 therapy for recurrent disease. If the patient received anti-PD-1/PD-L1 therapy as part of initial upfront curative intent treatment (either as part of definitive non-surgical therapy or in the adjuvant setting) in the past, the last dosage of anti-PD-1/PD-L1 therapy must have been given greater than one year prior to randomization

    • Patient must not be pregnant or breast-feeding due to the potential harm to an unborn fetus and possible risk for adverse events in nursing infants with the treatment regimens being used. All patients of childbearing potential must have a blood test or urine study within 14 days prior to randomization to rule out pregnancy. A urine or serum pregnancy test must be repeated within 72 hours prior to receiving the first dose of pembrolizumab or chemotherapy if the test done for eligibility/randomization is done outside of this 72 hour window. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required. A patient of childbearing potential is defined as anyone, regardless of sexual orientation or whether they have undergone tubal ligation, who meets the following criteria: 1) has achieved menarche at some point, 2) has not undergone a hysterectomy or bilateral oophorectomy; or 3) has not been naturally postmenopausal (amenorrhea following cancer therapy does not rule out childbearing potential) for at least 24 consecutive months (i.e., has had menses at any time in the preceding 24 consecutive months)

    • Patient must not have a current active infection that requires systemic treatment at time of randomization

    • Patient must not have a history of non-infectious pneumonitis requiring steroids within 3 years prior to randomization

    • Patient must not have a history of solid organ transplant or stem cell transplant

    • Patient must not be on immunosuppressive medication within 7 days prior to randomization, EXCEPT for the following: a) intranasal, inhaled, topical steroids, or local steroid injection (e.g., intra-articular injection); b) systemic corticosteroids at physiologic doses =< 10 mg/day of prednisone or equivalent; c) steroids as premedication for hypersensitivity reactions (e.g., computed tomography [CT] scan premedication)

    • Patient must not have received a live vaccine within 30 days prior to the first dose of study drug. Examples of live vaccines include, but are not limited to, the following: measles, mumps, rubella, varicella/zoster (chicken pox), yellow fever, rabies, Bacillus Calmette-Guerin (BCG), and typhoid vaccine. Seasonal influenza vaccines for injection are generally killed virus vaccines and are allowed; however, intranasal influenza vaccines (e.g., FluMist) are live attenuated vaccines and are not allowed

    • Patient must not have severe hypersensitivity (>= grade 3) to pembrolizumab and/or any of its excipients

    • Patient must not have an active autoimmune disease that has required systemic treatment in past 2 years (i.e., with use of disease modifying agents, corticosteroids or immunosuppressive drugs). Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency) is not considered a form of systemic treatment and is allowed

    • Patient must not have a known psychiatric or substance abuse disorder that would interfere with the participant's ability to cooperate with the requirements of the study

    • Patient must not have a known history of hepatitis B (defined as hepatitis B surface antigen [HBsAg] reactive) or known active hepatitis C virus (defined as HCV ribonucleic acid [RNA] [qualitative] is detected) infection

    • NOTE: No testing for hepatitis B and hepatitis C is required unless mandated by a local health authority

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 University of Alabama at Birmingham Cancer Center Birmingham Alabama United States 35233
    2 University of Arkansas for Medical Sciences Little Rock Arkansas United States 72205
    3 Sutter Cancer Centers Radiation Oncology Services-Roseville Roseville California United States 95661
    4 Sutter Roseville Medical Center Roseville California United States 95661
    5 Smilow Cancer Center/Yale-New Haven Hospital New Haven Connecticut United States 06510
    6 Yale University New Haven Connecticut United States 06520
    7 Smilow Cancer Hospital Care Center-Trumbull Trumbull Connecticut United States 06611
    8 Smilow Cancer Hospital Care Center - Waterford Waterford Connecticut United States 06385
    9 UM Sylvester Comprehensive Cancer Center at Coral Gables Coral Gables Florida United States 33146
    10 UM Sylvester Comprehensive Cancer Center at Deerfield Beach Deerfield Beach Florida United States 33442
    11 University of Florida Health Science Center - Gainesville Gainesville Florida United States 32610
    12 University of Miami Miller School of Medicine-Sylvester Cancer Center Miami Florida United States 33136
    13 UM Sylvester Comprehensive Cancer Center at Plantation Plantation Florida United States 33324
    14 Moffitt Cancer Center-International Plaza Tampa Florida United States 33607
    15 Moffitt Cancer Center - McKinley Campus Tampa Florida United States 33612
    16 Moffitt Cancer Center Tampa Florida United States 33612
    17 Emory Proton Therapy Center Atlanta Georgia United States 30308
    18 Emory University Hospital Midtown Atlanta Georgia United States 30308
    19 Emory University Hospital/Winship Cancer Institute Atlanta Georgia United States 30322
    20 Memorial Health University Medical Center Savannah Georgia United States 31404
    21 Carle on Vermilion Danville Illinois United States 61832
    22 Cancer Care Specialists of Illinois - Decatur Decatur Illinois United States 62526
    23 Decatur Memorial Hospital Decatur Illinois United States 62526
    24 Carle Physician Group-Effingham Effingham Illinois United States 62401
    25 Crossroads Cancer Center Effingham Illinois United States 62401
    26 Carle Physician Group-Mattoon/Charleston Mattoon Illinois United States 61938
    27 Loyola University Medical Center Maywood Illinois United States 60153
    28 Southern Illinois University School of Medicine Springfield Illinois United States 62702
    29 Springfield Clinic Springfield Illinois United States 62702
    30 Memorial Medical Center Springfield Illinois United States 62781
    31 Carle Cancer Center Urbana Illinois United States 61801
    32 The Carle Foundation Hospital Urbana Illinois United States 61801
    33 Reid Health Richmond Indiana United States 47374
    34 Iowa Methodist Medical Center Des Moines Iowa United States 50309
    35 Medical Oncology and Hematology Associates-Des Moines Des Moines Iowa United States 50309
    36 Broadlawns Medical Center Des Moines Iowa United States 50314
    37 Iowa Lutheran Hospital Des Moines Iowa United States 50316
    38 Methodist West Hospital West Des Moines Iowa United States 50266-7700
    39 University of Kansas Cancer Center Kansas City Kansas United States 66160
    40 University of Kansas Cancer Center-Overland Park Overland Park Kansas United States 66210
    41 University of Kansas Hospital-Indian Creek Campus Overland Park Kansas United States 66211
    42 University of Kansas Hospital-Westwood Cancer Center Westwood Kansas United States 66205
    43 University of Kentucky/Markey Cancer Center Lexington Kentucky United States 40536
    44 Maryland Proton Treatment Center Baltimore Maryland United States 21201
    45 University of Maryland/Greenebaum Cancer Center Baltimore Maryland United States 21201
    46 Central Maryland Radiation Oncology in Howard County Columbia Maryland United States 21044
    47 UM Baltimore Washington Medical Center/Tate Cancer Center Glen Burnie Maryland United States 21061
    48 Tufts Medical Center Boston Massachusetts United States 02111
    49 University of Michigan Comprehensive Cancer Center Ann Arbor Michigan United States 48109
    50 Wayne State University/Karmanos Cancer Institute Detroit Michigan United States 48201
    51 Weisberg Cancer Treatment Center Farmington Hills Michigan United States 48334
    52 Sanford Joe Lueken Cancer Center Bemidji Minnesota United States 56601
    53 University of Mississippi Medical Center Jackson Mississippi United States 39216
    54 Saint Francis Medical Center Cape Girardeau Missouri United States 63703
    55 Siteman Cancer Center at West County Hospital Creve Coeur Missouri United States 63141
    56 University of Kansas Cancer Center - North Kansas City Missouri United States 64154
    57 University of Kansas Cancer Center - Lee's Summit Lee's Summit Missouri United States 64064
    58 University of Kansas Cancer Center at North Kansas City Hospital North Kansas City Missouri United States 64116
    59 Washington University School of Medicine Saint Louis Missouri United States 63110
    60 Siteman Cancer Center-South County Saint Louis Missouri United States 63129
    61 Siteman Cancer Center at Christian Hospital Saint Louis Missouri United States 63136
    62 Siteman Cancer Center at Saint Peters Hospital Saint Peters Missouri United States 63376
    63 Mercy Hospital Springfield Springfield Missouri United States 65804
    64 Kalispell Regional Medical Center Kalispell Montana United States 59901
    65 Nebraska Methodist Hospital Omaha Nebraska United States 68114
    66 Mount Sinai Union Square New York New York United States 10003
    67 Mount Sinai Chelsea New York New York United States 10011
    68 Mount Sinai Hospital New York New York United States 10029
    69 Stony Brook University Medical Center Stony Brook New York United States 11794
    70 Sanford Bismarck Medical Center Bismarck North Dakota United States 58501
    71 Sanford Roger Maris Cancer Center Fargo North Dakota United States 58122
    72 Dayton Physicians LLC-Miami Valley South Centerville Ohio United States 45459
    73 Miami Valley Hospital South Centerville Ohio United States 45459
    74 Cleveland Clinic Foundation Cleveland Ohio United States 44195
    75 Dayton Physician LLC-Miami Valley Hospital North Dayton Ohio United States 45415
    76 Miami Valley Hospital North Dayton Ohio United States 45415
    77 Greater Dayton Cancer Center Kettering Ohio United States 45409
    78 Kettering Medical Center Kettering Ohio United States 45429
    79 Cancer Centers of Southwest Oklahoma Research Lawton Oklahoma United States 73505
    80 University of Oklahoma Health Sciences Center Oklahoma City Oklahoma United States 73104
    81 Clackamas Radiation Oncology Center Clackamas Oregon United States 97015
    82 Providence Cancer Institute Clackamas Clinic Clackamas Oregon United States 97015
    83 Providence Newberg Medical Center Newberg Oregon United States 97132
    84 Providence Portland Medical Center Portland Oregon United States 97213
    85 Providence Saint Vincent Medical Center Portland Oregon United States 97225
    86 UPMC Altoona Altoona Pennsylvania United States 16601
    87 Geisinger Medical Center Danville Pennsylvania United States 17822
    88 Geisinger Medical Oncology-Lewisburg Lewisburg Pennsylvania United States 17837
    89 Thomas Jefferson University Hospital Philadelphia Pennsylvania United States 19107
    90 Fox Chase Cancer Center Philadelphia Pennsylvania United States 19111
    91 Temple University Hospital Philadelphia Pennsylvania United States 19140
    92 University of Pittsburgh Cancer Institute (UPCI) Pittsburgh Pennsylvania United States 15232
    93 UPMC-Shadyside Hospital Pittsburgh Pennsylvania United States 15232
    94 Geisinger Wyoming Valley/Henry Cancer Center Wilkes-Barre Pennsylvania United States 18711
    95 UPMC Memorial York Pennsylvania United States 17408
    96 Medical University of South Carolina Charleston South Carolina United States 29425
    97 Sanford USD Medical Center - Sioux Falls Sioux Falls South Dakota United States 57117-5134
    98 Vanderbilt University/Ingram Cancer Center Nashville Tennessee United States 37232
    99 Huntsman Cancer Institute/University of Utah Salt Lake City Utah United States 84112
    100 VCU Massey Cancer Center at Stony Point Richmond Virginia United States 23235
    101 Virginia Commonwealth University/Massey Cancer Center Richmond Virginia United States 23298
    102 HSHS Sacred Heart Hospital Eau Claire Wisconsin United States 54701
    103 Saint Vincent Hospital Cancer Center Green Bay Green Bay Wisconsin United States 54301
    104 Saint Vincent Hospital Cancer Center at Saint Mary's Green Bay Wisconsin United States 54303
    105 Froedtert Menomonee Falls Hospital Menomonee Falls Wisconsin United States 53051
    106 Medical College of Wisconsin Milwaukee Wisconsin United States 53226
    107 Drexel Town Square Health Center Oak Creek Wisconsin United States 53154
    108 Saint Vincent Hospital Cancer Center at Sturgeon Bay Sturgeon Bay Wisconsin United States 54235-1495

    Sponsors and Collaborators

    • National Cancer Institute (NCI)

    Investigators

    • Principal Investigator: Dan P Zandberg, ECOG-ACRIN Cancer Research Group

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    National Cancer Institute (NCI)
    ClinicalTrials.gov Identifier:
    NCT04671667
    Other Study ID Numbers:
    • NCI-2020-13174
    • NCI-2020-13174
    • EA3191
    • EA3191
    • U10CA180820
    First Posted:
    Dec 17, 2020
    Last Update Posted:
    Aug 25, 2022
    Last Verified:
    Apr 1, 2022
    Individual Participant Data (IPD) Sharing Statement:
    Yes
    Plan to Share IPD:
    Yes
    Studies a U.S. FDA-regulated Drug Product:
    Yes
    Studies a U.S. FDA-regulated Device Product:
    No
    Additional relevant MeSH terms:

    Study Results

    No Results Posted as of Aug 25, 2022