Dr. John J. Letterio

Pediatric Hematology Oncology | Pediatrics
11100 Euclid Ave, 
Cleveland, OH 
Clinical Trials:Currently Recruiting for 2 Trials
Accepting New Patients
11100 Euclid Ave, 
Cleveland, OH 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

John Letterio is a Pediatric Hematologist Oncology specialist and a Pediatrics provider in Cleveland, Ohio. His top areas of expertise are Hepatoblastoma, Embryonal Tumor with Multilayered Rosettes, Gliomatosis Cerebri, Medulloblastoma, and Bone Marrow Aspiration. Dr. Letterio is currently accepting new patients.

His clinical research consists of co-authoring 40 peer reviewed articles and participating in 28 clinical trials. MediFind looks at clinical research from the past 15 years.

Specialties
Pediatric Hematology Oncology
Pediatrics
Licenses
Pediatric Hematology-Oncology in OH
Languages Spoken
English
Gender
Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

Find your insurance
Find your insuranceClose

Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
CareSource
  • HMO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Medical Health
  • HMO
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D

Locations

11100 Euclid Ave, Cleveland, OH 44106

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

28 Clinical Trials

The Project: EveryChild Protocol: A Registry, Eligibility Screening, Biology and Outcome Study
The Project: EveryChild Protocol: A Registry, Eligibility Screening, Biology and Outcome Study
Enrollment Status: Recruiting
Publish Date: March 19, 2025
Intervention Type: Other
A Phase 3 Study of Active Surveillance for Low Risk and a Randomized Trial of Carboplatin vs. Cisplatin for Standard Risk Pediatric and Adult Patients With Germ Cell Tumors
A Phase 3 Study of Active Surveillance for Low Risk and a Randomized Trial of Carboplatin vs. Cisplatin for Standard Risk Pediatric and Adult Patients With Germ Cell Tumors
Enrollment Status: Recruiting
Publish Date: March 19, 2025
Intervention Type: Other, Procedure, Biological, Drug
Study Drugs: Bleomycin, Bleomycin Sulfate, Carboplatin, Cisplatin, Etoposide, Etoposide Phosphate
Study Phase: Phase 3
Risk-Stratified Therapy for Acute Myeloid Leukemia in Down Syndrome
Risk-Stratified Therapy for Acute Myeloid Leukemia in Down Syndrome
Enrollment Status: Active_not_recruiting
Publish Date: June 13, 2025
Intervention Type: Drug, Other
Study Drugs: Asparaginase, Erwinia Asparaginase, Cytarabine, Daunorubicin, Etoposide, Mitoxantrone, Thioguanine
Study Phase: Phase 3
A Phase 2 Study of Reduced Therapy for Newly Diagnosed Average-Risk WNT-Driven Medulloblastoma Patients
A Phase 2 Study of Reduced Therapy for Newly Diagnosed Average-Risk WNT-Driven Medulloblastoma Patients
Enrollment Status: Active_not_recruiting
Publish Date: June 11, 2025
Intervention Type: Drug, Procedure, Radiation, Other
Study Drugs: Cisplatin, Cyclophosphamide, Lomustine, Vincristine, Vincristine Sulfate
Study Phase: Phase 2
International Phase 3 Trial in Philadelphia Chromosome-Positive Acute Lymphoblastic Leukemia (Ph+ALL) Testing Imatinib in Combination With Two Different Cytotoxic Chemotherapy Backbones
International Phase 3 Trial in Philadelphia Chromosome-Positive Acute Lymphoblastic Leukemia (Ph+ALL) Testing Imatinib in Combination With Two Different Cytotoxic Chemotherapy Backbones
Enrollment Status: Active_not_recruiting
Publish Date: June 11, 2025
Intervention Type: Drug, Procedure, Other, Biological
Study Drugs: Cyclophosphamide, Cytarabine, Daunorubicin Hydrochloride, Dexamethasone, Dexrazoxane Hydrochloride, Doxorubicin, Etoposide, Filgrastim, Ifosfamide, Imatinib Mesylate, Leucovorin Calcium, Mercaptopurine, Methotrexate, Methylprednisolone, Pegaspargase, Prednisolone, Hydrocortisone, Thioguanine, Vincristine Sulfate
Study Phase: Phase 3
Pediatric Hepatic Malignancy International Therapeutic Trial (PHITT)
Pediatric Hepatic Malignancy International Therapeutic Trial (PHITT)
Enrollment Status: Active_not_recruiting
Publish Date: June 11, 2025
Intervention Type: Drug, Other, Procedure
Study Drugs: Carboplatin, Cisplatin, Doxorubicin, Etoposide, Fluorouracil, Gemcitabine, Irinotecan, Oxaliplatin, Sorafenib, Vincristine Sulfate
Study Phase: Phase 3
NCI-COG Pediatric MATCH (Molecular Analysis for Therapy Choice) Screening Protocol
NCI-COG Pediatric MATCH (Molecular Analysis for Therapy Choice) Screening Protocol
Enrollment Status: Active_not_recruiting
Publish Date: June 10, 2025
Intervention Type: Procedure, Drug, Other
Study Drugs: Ensartinib, Erdafitinib, Larotrectinib, Olaparib, Palbociclib, Samotolisib, Selpercatinib, Selumetinib Sulfate, Tazemetostat, Tipifarnib, Ulixertinib, Vemurafenib
Study Phase: Phase 2
A Randomized Phase 3 Study of Vincristine, Dactinomycin, Cyclophosphamide (VAC) Alternating With Vincristine and Irinotecan (VI) Versus VAC/VI Plus Temsirolimus (TORI, Torisel, NSC# 683864) in Patients With Intermediate Risk (IR) Rhabdomyosarcoma (RMS)
A Randomized Phase 3 Study of Vincristine, Dactinomycin, Cyclophosphamide (VAC) Alternating With Vincristine and Irinotecan (VI) Versus VAC/VI Plus Temsirolimus (TORI, Torisel, NSC# 683864) in Patients With Intermediate Risk (IR) Rhabdomyosarcoma (RMS)
Enrollment Status: Active_not_recruiting
Publish Date: June 10, 2025
Intervention Type: Radiation, Drug, Biological, Other
Study Drugs: Cyclophosphamide, Dactinomycin, Irinotecan hydrochloride, Temsirolimus, Vincristine sulfate, Vinorelbine
Study Phase: Phase 3
A Phase 3 Study of 131I-Metaiodobenzylguanidine (131I-MIBG) or ALK Inhibitor Therapy Added to Intensive Therapy for Children With Newly Diagnosed High-Risk Neuroblastoma (NBL)
A Phase 3 Study of 131I-Metaiodobenzylguanidine (131I-MIBG) or ALK Inhibitor Therapy Added to Intensive Therapy for Children With Newly Diagnosed High-Risk Neuroblastoma (NBL)
Enrollment Status: Active_not_recruiting
Publish Date: June 10, 2025
Intervention Type: Drug, Procedure, Biological, Radiation
Study Drugs: Busulfan, Carboplatin, Cisplatin, Crizotinib, Cyclophosphamide, Dexrazoxane Hydrochloride, Dinutuximab, Doxorubicin Hydrochloride, Etoposide Phosphate, Isotretinoin, Melphalan Hydrochloride, Sargramostim, Thiotepa, Topotecan Hydrochloride, Vincristine Sulfate
Study Phase: Phase 3
A Randomized Phase 3 Study of Brentuximab Vedotin (SGN-35) for Newly Diagnosed High-Risk Classical Hodgkin Lymphoma (cHL) in Children and Young Adults
A Randomized Phase 3 Study of Brentuximab Vedotin (SGN-35) for Newly Diagnosed High-Risk Classical Hodgkin Lymphoma (cHL) in Children and Young Adults
Enrollment Status: Active_not_recruiting
Publish Date: June 10, 2025
Intervention Type: Other, Drug, Biological
Study Drugs: Bleomycin, Brentuximab, Cyclophosphamide, Doxorubicin, Etoposide, Methylprednisolone, Prednisone, Vincristine
Study Phase: Phase 3
NCI-COG Pediatric MATCH (Molecular Analysis for Therapy Choice) - Phase 2 Subprotocol of LOXO-101 (Larotrectinib) in Patients With Tumors Harboring Actionable NTRK Fusions
NCI-COG Pediatric MATCH (Molecular Analysis for Therapy Choice) - Phase 2 Subprotocol of LOXO-101 (Larotrectinib) in Patients With Tumors Harboring Actionable NTRK Fusions
Enrollment Status: Active_not_recruiting
Publish Date: May 14, 2025
Intervention Type: Procedure, Drug
Study Drugs: Larotrectinib, Larotrectinib Sulfate
Study Phase: Phase 2
Randomized Phase 3 Trial Evaluating the Addition of the IGF-1R Monoclonal Antibody Ganitumab (AMG 479, NSC# 750008) to Multiagent Chemotherapy for Patients With Newly Diagnosed Metastatic Ewing Sarcoma
Randomized Phase 3 Trial Evaluating the Addition of the IGF-1R Monoclonal Antibody Ganitumab (AMG 479, NSC# 750008) to Multiagent Chemotherapy for Patients With Newly Diagnosed Metastatic Ewing Sarcoma
Enrollment Status: Active_not_recruiting
Publish Date: May 09, 2025
Intervention Type: Drug, Procedure, Biological, Radiation
Study Drugs: Cyclophosphamide, Doxorubicin, Doxorubicin Hydrochloride, Etoposide, Etoposide Phosphate, Ganitumab, Ifosfamide, Vincristine, Vincristine Sulfate
Study Phase: Phase 3
A Randomized Phase 2 Trial of Axitinib/Nivolumab Combination Therapy vs. Single Agent Nivolumab for the Treatment of TFE/Translocation Renal Cell Carcinoma (tRCC) Across All Age Groups
A Randomized Phase 2 Trial of Axitinib/Nivolumab Combination Therapy vs. Single Agent Nivolumab for the Treatment of TFE/Translocation Renal Cell Carcinoma (tRCC) Across All Age Groups
Enrollment Status: Active_not_recruiting
Publish Date: May 09, 2025
Intervention Type: Drug, Biological
Study Drugs: Axitinib, Nivolumab
Study Phase: Phase 2
Treatment of Children With All Stages of Hepatoblastoma With Temsirolimus (NSC#683864) Added to High Risk Stratum Treatment
Treatment of Children With All Stages of Hepatoblastoma With Temsirolimus (NSC#683864) Added to High Risk Stratum Treatment
Enrollment Status: Active_not_recruiting
Publish Date: April 10, 2025
Intervention Type: Drug, Other, Procedure
Study Drugs: Cisplatin, Dexrazoxane, Doxorubicin Hydrochloride, Fluorouracil, Irinotecan Hydrochloride, Temsirolimus, Vincristine Sulfate
Study Phase: Phase 3
NCI-COG Pediatric MATCH (Molecular Analysis for Therapy Choice) - Phase 2 Subprotocol of Erdafitinib in Patients With Tumors Harboring FGFR1/2/3/4 Alterations
NCI-COG Pediatric MATCH (Molecular Analysis for Therapy Choice) - Phase 2 Subprotocol of Erdafitinib in Patients With Tumors Harboring FGFR1/2/3/4 Alterations
Enrollment Status: Active_not_recruiting
Publish Date: April 03, 2025
Intervention Type: Procedure, Other, Drug
Study Drug: Erdafitinib
Study Phase: Phase 2
Renal Tumors Classification, Biology, and Banking Study
Renal Tumors Classification, Biology, and Banking Study
Enrollment Status: Active_not_recruiting
Publish Date: March 25, 2025
Intervention Type: Other
Pazopanib Neoadjuvant Trial in Non-Rhabdomyosarcoma Soft Tissue Sarcomas (PAZNTIS): A Phase II/III Randomized Trial of Preoperative Chemoradiation or Preoperative Radiation Plus or Minus Pazopanib (NSC# 737754)
Pazopanib Neoadjuvant Trial in Non-Rhabdomyosarcoma Soft Tissue Sarcomas (PAZNTIS): A Phase II/III Randomized Trial of Preoperative Chemoradiation or Preoperative Radiation Plus or Minus Pazopanib (NSC# 737754)
Enrollment Status: Active_not_recruiting
Publish Date: March 21, 2025
Intervention Type: Drug, Radiation, Procedure
Study Drugs: Doxorubicin, Ifosfamide, Pazopanib
Study Phase: Phase 2/Phase 3
Risk-Stratified Randomized Phase III Testing of Blinatumomab (NSC#765986) in First Relapse of Childhood B-Lymphoblastic Leukemia (B-ALL)
Risk-Stratified Randomized Phase III Testing of Blinatumomab (NSC#765986) in First Relapse of Childhood B-Lymphoblastic Leukemia (B-ALL)
Enrollment Status: Active_not_recruiting
Publish Date: March 20, 2025
Intervention Type: Drug, Procedure, Biological, Other, Radiation
Study Drugs: Asparaginase, Blinatumomab, Cyclophosphamide, Cytarabine, Dexamethasone, Etoposide, Leucovorin Calcium, Mercaptopurine, Methotrexate, Mitoxantrone, Mitoxantrone Hydrochloride, Pegaspargase, Hydrocortisone, Thioguanine, Vincristine, Vincristine Sulfate
Study Phase: Phase 3
Utilizing Response- and Biology-Based Risk Factors to Guide Therapy in Patients With Non-High-Risk Neuroblastoma
Utilizing Response- and Biology-Based Risk Factors to Guide Therapy in Patients With Non-High-Risk Neuroblastoma
Enrollment Status: Active_not_recruiting
Publish Date: March 19, 2025
Intervention Type: Drug, Procedure, Other
Study Drugs: Carboplatin, Cyclophosphamide, Doxorubicin Hydrochloride, Etoposide
Study Phase: Phase 3
A Phase III Randomized Trial for Newly Diagnosed High Risk B-Lymphoblastic Leukemia (B-ALL) Including a Stratum Evaluating Dasatinib (NSC#732517) in Patients With Ph-like Tyrosine Kinase Inhibitor (TKI) Sensitive Mutations
A Phase III Randomized Trial for Newly Diagnosed High Risk B-Lymphoblastic Leukemia (B-ALL) Including a Stratum Evaluating Dasatinib (NSC#732517) in Patients With Ph-like Tyrosine Kinase Inhibitor (TKI) Sensitive Mutations
Enrollment Status: Active_not_recruiting
Publish Date: February 21, 2025
Intervention Type: Drug, Other, Radiation
Study Drugs: Clofarabine, Cyclophosphamide, Cytarabine, Dasatinib, Daunorubicin Hydrochloride, Dexamethasone, Doxorubicin Hydrochloride, Etoposide, Hydrocortisone Sodium Succinate, Leucovorin Calcium, Mercaptopurine, Methotrexate, Pegaspargase, Prednisone, Thioguanine, Vincristine Sulfate
Study Phase: Phase 3
Total Therapy for Infants With Acute Lymphoblastic Leukemia (ALL) I
Total Therapy for Infants With Acute Lymphoblastic Leukemia (ALL) I
Enrollment Status: Active_not_recruiting
Publish Date: February 05, 2025
Intervention Type: Drug
Study Drugs: ITMHA, Dexamethasone, Mitoxantrone, Pegaspargase, Asparaginase Erwinia Chrysanthemi, Bortezomib, Vorinostat, Cyclophosphamide, Mercaptopurine, Methotrexate, Leucovorin Calcium, Cytarabine, Etoposide, Vincristine
Study Phase: Phase 1/Phase 2
NCI-COG Pediatric MATCH (Molecular Analysis For Therapy Choice)- Phase 2 Subprotocol of LY3023414 in Patients With Solid Tumors
NCI-COG Pediatric MATCH (Molecular Analysis For Therapy Choice)- Phase 2 Subprotocol of LY3023414 in Patients With Solid Tumors
Enrollment Status: Completed
Publish Date: January 27, 2025
Intervention Type: Procedure, Drug
Study Drug: Samotolisib
Study Phase: Phase 2
Phase 2 Trial of XL184 (Cabozantinib) an Oral Small-Molecule Inhibitor of Multiple Kinases, in Children and Young Adults With Refractory Sarcomas, Wilms Tumor, and Other Rare Tumors
Phase 2 Trial of XL184 (Cabozantinib) an Oral Small-Molecule Inhibitor of Multiple Kinases, in Children and Young Adults With Refractory Sarcomas, Wilms Tumor, and Other Rare Tumors
Enrollment Status: Active_not_recruiting
Publish Date: January 23, 2025
Intervention Type: Drug, Other
Study Drugs: Cabozantinib, Cabozantinib-S-Malate
Study Phase: Phase 2
LEAHRN (Late Effects After High-Risk Neuroblastoma) Study
LEAHRN (Late Effects After High-Risk Neuroblastoma) Study
Enrollment Status: Active_not_recruiting
Publish Date: October 29, 2024
Intervention Type: Other
Phase III Randomized Trial of Post-Radiation Chemotherapy in Patients With Newly Diagnosed Ependymoma Ages 1 to 21 Years
Phase III Randomized Trial of Post-Radiation Chemotherapy in Patients With Newly Diagnosed Ependymoma Ages 1 to 21 Years
Enrollment Status: Active_not_recruiting
Publish Date: October 26, 2024
Intervention Type: Drug, Radiation, Biological, Other
Study Drugs: Carboplatin, Cisplatin, Cyclophosphamide, Etoposide, Vincristine
Study Phase: Phase 3
Neuropsychological, Social, Emotional, and Behavioral Outcomes in Children With Cancer
Neuropsychological, Social, Emotional, and Behavioral Outcomes in Children With Cancer
Enrollment Status: Active_not_recruiting
Publish Date: August 26, 2024
Intervention Type: Other, Procedure
A Randomized Phase 2 Trial of Brentuximab Vedotin (SGN35, NSC# 749710), or Crizotinib (NSC#749005, Commercially Labeled) in Combination With Chemotherapy for Newly Diagnosed Patients With Anaplastic Large Cell Lymphoma (ALCL)
A Randomized Phase 2 Trial of Brentuximab Vedotin (SGN35, NSC# 749710), or Crizotinib (NSC#749005, Commercially Labeled) in Combination With Chemotherapy for Newly Diagnosed Patients With Anaplastic Large Cell Lymphoma (ALCL)
Enrollment Status: Completed
Publish Date: April 30, 2024
Intervention Type: Drug
Study Drugs: Brentuximab Vedotin, Crizotinib, Cyclophosphamide, Cytarabine, Dexamethasone, Doxorubicin Hydrochloride, Etoposide, Ifosfamide, Methotrexate
Study Phase: Phase 2
Pediatric Blood & Marrow Transplant Consortium (PBMTC) Phase II Myeloablative Haploidentical BMT With Post-transplantation Cyclophosphamide for Pediatric Patients With Hematologic Malignancies
Pediatric Blood & Marrow Transplant Consortium (PBMTC) Phase II Myeloablative Haploidentical BMT With Post-transplantation Cyclophosphamide for Pediatric Patients With Hematologic Malignancies
Enrollment Status: Completed
Publish Date: November 26, 2021
Intervention Type: Radiation, Other, Drug
Study Phase: Phase 2
View 26 Less Clinical Trials

40 Total Publications

A Core NRF2 Gene Set Defined Through Comprehensive Transcriptomic Analysis Predicts Selective Drug Resistance and Poor Multicancer Prognosis.
A Core NRF2 Gene Set Defined Through Comprehensive Transcriptomic Analysis Predicts Selective Drug Resistance and Poor Multicancer Prognosis.
Journal: Antioxidants & redox signaling
Published: July 19, 2024
Similar Doctors
Expertise in
5
conditions
Dr. Peter M. Anderson
Pediatric Hematology Oncology | Pediatrics
Expertise in
5
conditions
Dr. Peter M. Anderson
Pediatric Hematology Oncology | Pediatrics

Cleveland Clinic Main Campus

9500 Euclid Avenue, 
Cleveland, OH 
 (0.9 mi)
Languages Spoken:
English
See accepted insurances
Accepting New Patients

Peter Anderson is a Pediatric Hematologist Oncology specialist and a Pediatrics provider in Cleveland, Ohio. Dr. Anderson is highly rated in 5 conditions, according to our data. His top areas of expertise are Osteosarcoma, Ewing Sarcoma, Adult Soft Tissue Sarcoma, and Desmoplastic Small Round Cell Tumor. Dr. Anderson is currently accepting new patients.

Expertise in
6
conditions
Dr. Duncan S. Stearns
Pediatric Hematology Oncology | Pediatrics
Expertise in
6
conditions
Dr. Duncan S. Stearns
Pediatric Hematology Oncology | Pediatrics

University Hospitals Medical Group Inc

11100 Euclid Ave, 
Cleveland, OH 
 (0.1 mi)
Languages Spoken:
English
See accepted insurances
Accepting New Patients

Duncan Stearns is a Pediatric Hematologist Oncology specialist and a Pediatrics provider in Cleveland, Ohio. Dr. Stearns is highly rated in 6 conditions, according to our data. His top areas of expertise are Medulloblastoma, Embryonal Tumor with Multilayered Rosettes, Gliomatosis Cerebri, Glioma, and Bone Marrow Aspiration. Dr. Stearns is currently accepting new patients.

Expertise in
9
conditions
Dr. Jignesh D. Dalal
Pediatric Hematology Oncology | Pediatrics
Expertise in
9
conditions
Dr. Jignesh D. Dalal
Pediatric Hematology Oncology | Pediatrics

University Hospitals Medical Group Inc

11100 Euclid Ave, 
Cleveland, OH 
 (0.1 mi)
216-844-1000
Languages Spoken:
English
See accepted insurances
Accepting New Patients

Jignesh Dalal is a Pediatric Hematologist Oncology specialist and a Pediatrics provider in Cleveland, Ohio. Dr. Dalal is highly rated in 9 conditions, according to our data. His top areas of expertise are Anemia, Sickle Cell Disease, Hemoglobinopathy, Aplastic Anemia, and Bone Marrow Transplant. Dr. Dalal is currently accepting new patients.

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. Letterio's expertise for a condition
ConditionClose
        View All 23 Experienced Conditions
        Want to save this doctor for later?
        Sign Up
        Is this your doctor?
        Find A Second Opinion
        Not sure about your diagnosis?
        Check Your Symptoms
         
         
         
         
        Learn about our expert tiers
        Learn More
        Are you the provider on this profile?
        Claim Profile