Experienced in Gastroenteropancreatic Neuroendocrine Tumor (GEP-NET)

Dr. Joseph W. Leach

Oncology
Allina Health System
800 E 28th St, Suite 401, 
Minneapolis, MN 
Clinical Trials:Currently Recruiting for 3 Trials
Accepting New Patients
Offers Telehealth
Experienced in Gastroenteropancreatic Neuroendocrine Tumor (GEP-NET)
Allina Health System
800 E 28th St, Suite 401, 
Minneapolis, MN 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

Joseph Leach is an Oncologist in Minneapolis, Minnesota. Dr. Leach is rated as an Experienced provider by MediFind in the treatment of Gastroenteropancreatic Neuroendocrine Tumor (GEP-NET). His top areas of expertise are Pleuropulmonary Blastoma, Paget Disease of the Breast, Multiple Myeloma, Lung Cancer, and Bone Marrow Aspiration. Dr. Leach is currently accepting new patients.

His clinical research consists of co-authoring 14 peer reviewed articles and participating in 23 clinical trials. MediFind looks at clinical research from the past 15 years.

Specialties
Oncology
Licenses
Internal Medicine in MN
Hospital Affiliations
Abbott Northwestern Hospital
Allina Health Faribault Medical Center
Languages Spoken
English
Gender
Male

Insurance

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

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
HealthPartners
  • POS
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Itasca Medical Care
  • MANAGED MEDICAID PLAN
  • MEDICARE SNP
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medica
  • EPO
  • HMO
  • PPO
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Northern Plains Alliance
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE PDP
Sanford Health
  • HMO
  • PPO
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
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Locations

ALLINA HEALTH SYSTEM
800 E 28th St, Suite 401, Minneapolis, MN 55407

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.

23 Clinical Trials

Randomized Phase II/III Study of Nivolumab Plus Ipilimumab Plus Sargramostim Versus Nivolumab Plus Ipilimumab in Patients With Unresectable Stage III or Stage IV Melanoma
Randomized Phase II/III Study of Nivolumab Plus Ipilimumab Plus Sargramostim Versus Nivolumab Plus Ipilimumab in Patients With Unresectable Stage III or Stage IV Melanoma
Enrollment Status: Recruiting
Publish Date: October 15, 2025
Intervention Type: Procedure, Biological
Study Drugs: Ipilimumab, Nivolumab, Sargramostim
Study Phase: Phase 2/Phase 3
Phase II Randomized Trial of Radiotherapy With or Without Cisplatin for Surgically Resected Squamous Cell Carcinoma of the Head and Neck (SCCHN) With TP53 Sequencing
Phase II Randomized Trial of Radiotherapy With or Without Cisplatin for Surgically Resected Squamous Cell Carcinoma of the Head and Neck (SCCHN) With TP53 Sequencing
Enrollment Status: Recruiting
Publish Date: September 19, 2025
Intervention Type: Drug, Other, Radiation
Study Drug: Cisplatin
Study Phase: Phase 2
A Randomized Phase III Trial for Surgically Resected Early Stage Non-small Cell Lung Cancer: Crizotinib Versus Observation for Patients With Tumors Harboring the Anaplastic Lymphoma Kinase (ALK) Fusion Protein
A Randomized Phase III Trial for Surgically Resected Early Stage Non-small Cell Lung Cancer: Crizotinib Versus Observation for Patients With Tumors Harboring the Anaplastic Lymphoma Kinase (ALK) Fusion Protein
Enrollment Status: Recruiting
Publish Date: July 03, 2024
Intervention Type: Other, Drug
Study Drug: Crizotinib
Study Phase: Phase 3
Molecular Analysis for Therapy Choice (MATCH)
Molecular Analysis for Therapy Choice (MATCH)
Enrollment Status: Active_not_recruiting
Publish Date: October 01, 2025
Intervention Type: Procedure, Drug, Other, Biological
Study Drugs: Adavosertib, Afatinib, Binimetinib, Capivasertib, Copanlisib, Crizotinib, Dabrafenib, Dasatinib, Defactinib, Erdafitinib, FGFR Inhibitor AZD4547, Ipatasertib, Larotrectinib, Nivolumab, Osimertinib, Palbociclib, Pertuzumab, PI3K-Beta Inhibitor GSK2636771, Sapanisertib, Sunitinib, Taselisib, Trametinib, Trastuzumab, Ulixertinib, Vismodegib
Study Phase: Phase 2
Randomized Phase II Open Label Study of Lenalidomide R-CHOP (R2CHOP) vs. RCHOP (Rituximab, Cyclophosphamide, Doxorubicin, Vincristine and Prednisone) in Patients With Newly Diagnosed Diffuse Large B Cell Lymphoma
Randomized Phase II Open Label Study of Lenalidomide R-CHOP (R2CHOP) vs. RCHOP (Rituximab, Cyclophosphamide, Doxorubicin, Vincristine and Prednisone) in Patients With Newly Diagnosed Diffuse Large B Cell Lymphoma
Enrollment Status: Active_not_recruiting
Publish Date: September 22, 2025
Intervention Type: Drug, Biological, Other
Study Drugs: Cyclophosphamide, Doxorubicin Hydrochloride, Lenalidomide, Prednisone, Rituximab, Vincristine Sulfate
Study Phase: Phase 2
Adjuvant Nivolumab in Resected Lung Cancers (ANVIL)-A Randomized Phase III Study of Nivolumab After Surgical Resection and Adjuvant Chemotherapy in Non-Small Cell Lung Cancers
Adjuvant Nivolumab in Resected Lung Cancers (ANVIL)-A Randomized Phase III Study of Nivolumab After Surgical Resection and Adjuvant Chemotherapy in Non-Small Cell Lung Cancers
Enrollment Status: Active_not_recruiting
Publish Date: September 22, 2025
Intervention Type: Procedure, Biological, Other
Study Drug: Nivolumab
Study Phase: Phase 3
Randomized Phase III Trial of Lenalidomide Versus Observation Alone in Patients With Asymptomatic High-Risk Smoldering Multiple Myeloma
Randomized Phase III Trial of Lenalidomide Versus Observation Alone in Patients With Asymptomatic High-Risk Smoldering Multiple Myeloma
Enrollment Status: Active_not_recruiting
Publish Date: September 22, 2025
Intervention Type: Other, Drug
Study Drug: Lenalidomide
Study Phase: Phase 3
DREAMseq (Doublet, Randomized Evaluation in Advanced Melanoma Sequencing) a Phase III Trial
DREAMseq (Doublet, Randomized Evaluation in Advanced Melanoma Sequencing) a Phase III Trial
Enrollment Status: Active_not_recruiting
Publish Date: September 16, 2025
Intervention Type: Other, Procedure, Biological, Drug
Study Drugs: Dabrafenib Mesylate, Ipilimumab, Nivolumab, Trametinib Dimethyl Sulfoxide
Study Phase: Phase 3
A Randomized Phase III Trial of Endocrine Therapy Plus Entinostat/Placebo in Patients With Hormone Receptor-Positive Advanced Breast Cancer
A Randomized Phase III Trial of Endocrine Therapy Plus Entinostat/Placebo in Patients With Hormone Receptor-Positive Advanced Breast Cancer
Enrollment Status: Active_not_recruiting
Publish Date: September 15, 2025
Intervention Type: Other, Procedure, Drug
Study Drugs: Entinostat, Exemestane, Goserelin, Goserelin Acetate
Study Phase: Phase 3
Randomized Phase III Trial of Bortezomib, Lenalidomide, and Dexamethasone (VRd) Versus Carfilzomib, Lenalidomide, and Dexamethasone (CRd) Followed by Limited or Indefinite Duration Lenalidomide Maintenance in Patients With Newly Diagnosed Symptomatic Multiple Myeloma (ENDURANCE)
Randomized Phase III Trial of Bortezomib, Lenalidomide, and Dexamethasone (VRd) Versus Carfilzomib, Lenalidomide, and Dexamethasone (CRd) Followed by Limited or Indefinite Duration Lenalidomide Maintenance in Patients With Newly Diagnosed Symptomatic Multiple Myeloma (ENDURANCE)
Enrollment Status: Active_not_recruiting
Publish Date: September 08, 2025
Intervention Type: Other, Drug
Study Drugs: Bortezomib, Carfilzomib, Dexamethasone, Lenalidomide
Study Phase: Phase 3
The National Myelodysplastic Syndromes Natural History Study
The National Myelodysplastic Syndromes Natural History Study
Enrollment Status: Active_not_recruiting
Publish Date: July 02, 2025
Intervention Type: Other
A Study Evaluating the Pregnancy Outcomes and Safety of Interrupting Endocrine Therapy for Young Women With Endocrine Responsive Breast Cancer Who Desire Pregnancy
A Study Evaluating the Pregnancy Outcomes and Safety of Interrupting Endocrine Therapy for Young Women With Endocrine Responsive Breast Cancer Who Desire Pregnancy
Enrollment Status: Active_not_recruiting
Publish Date: June 05, 2025
Intervention Type: Other
Study Phase: Not Applicable
A Randomized Phase III Trial of Memantine and Whole-Brain Radiotherapy With or Without Hippocampal Avoidance in Patients With Brain Metastases
A Randomized Phase III Trial of Memantine and Whole-Brain Radiotherapy With or Without Hippocampal Avoidance in Patients With Brain Metastases
Enrollment Status: Completed
Publish Date: April 23, 2025
Intervention Type: Radiation, Drug
Study Phase: Phase 3
Intergroup Randomized Phase 2 Four Arm Study In Patients ≥ 60 With Previously Untreated Mantle Cell Lymphoma Of Therapy With: Arm A = Rituximab+ Bendamustine Followed By Rituximab Consolidation (RB → R); Arm B = Rituximab + Bendamustine + Bortezomib Followed By Rituximab Consolidation (RBV→ R), Arm C = Rituximab + Bendamustine Followed By Lenalidomide + Rituximab Consolidation (RB → LR) or Arm D = Rituximab + Bendamustine + Bortezomib Followed By Lenalidomide + Rituximab Consolidation (RBV → LR)
Intergroup Randomized Phase 2 Four Arm Study In Patients ≥ 60 With Previously Untreated Mantle Cell Lymphoma Of Therapy With: Arm A = Rituximab+ Bendamustine Followed By Rituximab Consolidation (RB → R); Arm B = Rituximab + Bendamustine + Bortezomib Followed By Rituximab Consolidation (RBV→ R), Arm C = Rituximab + Bendamustine Followed By Lenalidomide + Rituximab Consolidation (RB → LR) or Arm D = Rituximab + Bendamustine + Bortezomib Followed By Lenalidomide + Rituximab Consolidation (RBV → LR)
Enrollment Status: Active_not_recruiting
Publish Date: April 08, 2025
Intervention Type: Drug, Biological
Study Drugs: Rituximab, Bendamustine Hydrochloride, Bortezomib, Lenalidomide
Study Phase: Phase 2
A Phase III Randomized, Double-Blind Placebo Controlled Study of Armodafinil (Nuvigil®) To Reduce Cancer-Related Fatigue in Patients With High Grade Glioma
A Phase III Randomized, Double-Blind Placebo Controlled Study of Armodafinil (Nuvigil®) To Reduce Cancer-Related Fatigue in Patients With High Grade Glioma
Enrollment Status: Completed
Publish Date: January 27, 2025
Intervention Type: Other, Drug
Study Phase: Phase 3
Randomized Phase III Trial Evaluating the Role of Weight Loss in Adjuvant Treatment of Overweight and Obese Women with Early Breast Cancer
Randomized Phase III Trial Evaluating the Role of Weight Loss in Adjuvant Treatment of Overweight and Obese Women with Early Breast Cancer
Enrollment Status: Active_not_recruiting
Publish Date: January 13, 2025
Intervention Type: Other
Study Phase: Phase 3
Prospective Study of Magnetic Resonance Imaging (MRI) and Multiparameter Gene Expression Assay in Ductal Carcinoma In Situ (DCIS)
Prospective Study of Magnetic Resonance Imaging (MRI) and Multiparameter Gene Expression Assay in Ductal Carcinoma In Situ (DCIS)
Enrollment Status: Active_not_recruiting
Publish Date: July 03, 2024
Intervention Type: Other, Procedure, Drug, Radiation
Study Phase: Not Applicable
A Randomized Phase III Post-operative Trial of Platinum Based Chemotherapy vs. Capecitabine in Patients With Residual Triple-Negative Basal-Like Breast Cancer Following Neoadjuvant Chemotherapy
A Randomized Phase III Post-operative Trial of Platinum Based Chemotherapy vs. Capecitabine in Patients With Residual Triple-Negative Basal-Like Breast Cancer Following Neoadjuvant Chemotherapy
Enrollment Status: Active_not_recruiting
Publish Date: July 03, 2024
Intervention Type: Drug
Study Drugs: Capecitabine, Carboplatin, Cisplatin
Study Phase: Phase 3
Evaluation of Physical Function and Quality of Life (QOL) Before and After Non-Radical Surgical Therapy (Extra Fascial Hysterectomy or Cone Biopsy With Pelvic Lymphadenectomy) for Stage IA1 (LVSI+) and IA2-IB1 (≤ 2CM) Cervical Cancer
Evaluation of Physical Function and Quality of Life (QOL) Before and After Non-Radical Surgical Therapy (Extra Fascial Hysterectomy or Cone Biopsy With Pelvic Lymphadenectomy) for Stage IA1 (LVSI+) and IA2-IB1 (≤ 2CM) Cervical Cancer
Enrollment Status: Active_not_recruiting
Publish Date: May 03, 2024
Intervention Type: Other, Procedure
Study Phase: Not Applicable
A 3-Arm Randomized Phase II Trial of Bendamustine-Rituximab (BR) Followed by Rituximab vs Bortezomib-BR (BVR) Followed by Rituximab vs BR Followed by Lenalidomide/Rituximab in High Risk Follicular Lymphoma
A 3-Arm Randomized Phase II Trial of Bendamustine-Rituximab (BR) Followed by Rituximab vs Bortezomib-BR (BVR) Followed by Rituximab vs BR Followed by Lenalidomide/Rituximab in High Risk Follicular Lymphoma
Enrollment Status: Completed
Publish Date: June 29, 2023
Intervention Type: Drug, Biological
Study Drugs: Rituximab, Bendamustin, Bortezomib, Lenalidomide
Study Phase: Phase 2
A Randomized, Open Label, Phase 1/2 Trial of Gemcitabine Plus Nab-paclitaxel With or Without FG-3019 as Neoadjuvant Chemotherapy in Locally Advanced, Unresectable Pancreatic Cancer
A Randomized, Open Label, Phase 1/2 Trial of Gemcitabine Plus Nab-paclitaxel With or Without FG-3019 as Neoadjuvant Chemotherapy in Locally Advanced, Unresectable Pancreatic Cancer
Enrollment Status: Completed
Publish Date: March 02, 2023
Intervention Type: Drug
Study Drugs: FG-3019, Gemcitabine, Nab-paclitaxel
Study Phase: Phase 1/Phase 2
A Phase III Open-label, Multicenter Trial of Maintenance Therapy With Avelumab (MSB0010718C) Versus Continuation of First-line Chemotherapy in Subjects With Unresectable, Locally Advanced or Metastatic, Adenocarcinoma of the Stomach, or of the Gastro-esophageal Junction
A Phase III Open-label, Multicenter Trial of Maintenance Therapy With Avelumab (MSB0010718C) Versus Continuation of First-line Chemotherapy in Subjects With Unresectable, Locally Advanced or Metastatic, Adenocarcinoma of the Stomach, or of the Gastro-esophageal Junction
Enrollment Status: Completed
Publish Date: June 09, 2022
Intervention Type: Drug, Other
Study Phase: Phase 3
A Phase III Clinical Trial Evaluating TheraSphere® in Patients With Metastatic Colorectal Carcinoma of the Liver Who Have Failed First Line Chemotherapy
A Phase III Clinical Trial Evaluating TheraSphere® in Patients With Metastatic Colorectal Carcinoma of the Liver Who Have Failed First Line Chemotherapy
Enrollment Status: Completed
Publish Date: March 29, 2022
Intervention Type: Device
Study Phase: Not Applicable
View 20 Less Clinical Trials

14 Total Publications

Patient-reported tolerability of veliparib combined with cisplatin and etoposide for treatment of extensive stage small cell lung cancer: Neurotoxicity and adherence data from the ECOG ACRIN cancer research group E2511 phase II randomized trial.
Patient-reported tolerability of veliparib combined with cisplatin and etoposide for treatment of extensive stage small cell lung cancer: Neurotoxicity and adherence data from the ECOG ACRIN cancer research group E2511 phase II randomized trial.
Journal: Cancer medicine
Published: January 27, 2020
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Areas of Expertise

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