Experienced in Hairy Cell Leukemia (HCL)

Dr. Louis Fehrenbacher

Hematology Oncology
975 Sereno Dr, 
Vallejo, CA 
Experienced in Hairy Cell Leukemia (HCL)
975 Sereno Dr, 
Vallejo, CA 
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Overview

Louis Fehrenbacher is a Hematologist Oncology provider in Vallejo, California. Dr. Fehrenbacher is rated as an Experienced provider by MediFind in the treatment of Hairy Cell Leukemia (HCL). His top areas of expertise are Breast Cancer, Lung Cancer, Agranulocytosis, and Non-Small Cell Lung Cancer (NSCLC).

His clinical research consists of co-authoring 66 peer reviewed articles and participating in 32 clinical trials. MediFind looks at clinical research from the past 15 years. In particular, he has participated in 3 clinical trials in the study of Hairy Cell Leukemia (HCL).

Specialties
Hematology Oncology
Licenses
Internal Medicine in CA
Languages Spoken
English
Gender
Male

Insurance

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Locations

975 Sereno Dr, Vallejo, CA 94589

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.

32 Clinical Trials

A Phase III, Randomized Clinical Trial of Standard Adjuvant Endocrine Therapy +/- Chemotherapy in Patients With 1-3 Positive Nodes, Hormone Receptor-Positive and HER2-Negative Breast Cancer With Recurrence Score (RS) of 25 or Less. RxPONDER: A Clinical Trial Rx for Positive Node, Endocrine Responsive Breast Cancer
A Phase III, Randomized Clinical Trial of Standard Adjuvant Endocrine Therapy +/- Chemotherapy in Patients With 1-3 Positive Nodes, Hormone Receptor-Positive and HER2-Negative Breast Cancer With Recurrence Score (RS) of 25 or Less. RxPONDER: A Clinical Trial Rx for Positive Node, Endocrine Responsive Breast Cancer
Enrollment Status: Active_not_recruiting
Publish Date: November 25, 2025
Intervention Type: Drug, Other
Study Drugs: Anastrozole, Exemestane, Letrozole, Systemic Chemotherapy
Study Phase: Phase 3
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: November 24, 2025
Intervention Type: Drug
Study Drugs: Capecitabine, Carboplatin, Cisplatin
Study Phase: Phase 3
A Simplified Patient Care Strategy to Decrease Early Deaths in Acute Promyelocytic Leukemia (APL)
A Simplified Patient Care Strategy to Decrease Early Deaths in Acute Promyelocytic Leukemia (APL)
Enrollment Status: Active_not_recruiting
Publish Date: November 24, 2025
Intervention Type: Other
Study Phase: Not Applicable
A Randomized, Phase III Trial to Evaluate the Efficacy and Safety of Pembrolizumab (MK-3475) as Adjuvant Therapy for Triple Receptor-Negative Breast Cancer With >/= 1 CM Residual Invasive Cancer or Positive Lymph Nodes (ypN1mi, ypN1-3) After Neoadjuvant Chemotherapy
A Randomized, Phase III Trial to Evaluate the Efficacy and Safety of Pembrolizumab (MK-3475) as Adjuvant Therapy for Triple Receptor-Negative Breast Cancer With >/= 1 CM Residual Invasive Cancer or Positive Lymph Nodes (ypN1mi, ypN1-3) After Neoadjuvant Chemotherapy
Enrollment Status: Active_not_recruiting
Publish Date: November 17, 2025
Intervention Type: Other, Radiation, Procedure, Biological
Study Drug: Pembrolizumab
Study Phase: Phase 3
Molecular Analysis for Therapy Choice (MATCH)
Molecular Analysis for Therapy Choice (MATCH)
Enrollment Status: Active_not_recruiting
Publish Date: November 17, 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
DART: Dual Anti-CTLA-4 and Anti-PD-1 Blockade in Rare Tumors
DART: Dual Anti-CTLA-4 and Anti-PD-1 Blockade in Rare Tumors
Enrollment Status: Active_not_recruiting
Publish Date: November 17, 2025
Intervention Type: Procedure, Biological
Study Drugs: Ipilimumab, Nivolumab
Study Phase: Phase 2
Exceptional Responders Pilot Study: Molecular Profiling of Tumors From Cancer Patients Who Are Exceptional Responders
Exceptional Responders Pilot Study: Molecular Profiling of Tumors From Cancer Patients Who Are Exceptional Responders
Enrollment Status: Active_not_recruiting
Publish Date: October 20, 2025
Intervention Type: Other
A Phase II-R and a Phase III Trial Evaluating Both Erlotinib (Ph II-R) and Chemoradiation (Ph III) as Adjuvant Treatment for Patients With Resected Head of Pancreas Adenocarcinoma
A Phase II-R and a Phase III Trial Evaluating Both Erlotinib (Ph II-R) and Chemoradiation (Ph III) as Adjuvant Treatment for Patients With Resected Head of Pancreas Adenocarcinoma
Enrollment Status: Completed
Publish Date: October 08, 2025
Intervention Type: Other, Procedure, Drug, Radiation
Study Drugs: Capecitabine, Chemotherapy, Erlotinib hydrochloride, Fluorouracil, Gemcitabine hydrochloride
Study Phase: Phase 3
Effect of Preoperative Breast MRI on Surgical Outcomes, Costs and Quality of Life of Women With Breast Cancer
Effect of Preoperative Breast MRI on Surgical Outcomes, Costs and Quality of Life of Women With Breast Cancer
Enrollment Status: Completed
Publish Date: September 05, 2025
Intervention Type: Procedure
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 Phase III Randomized Study of Nivolumab Plus Ipilimumab Versus Nivolumab for Previously Treated Patients With Stage IV Squamous Cell Lung Cancer and No Matching Biomarker (Lung-Map Sub-Study)
A Phase III Randomized Study of Nivolumab Plus Ipilimumab Versus Nivolumab for Previously Treated Patients With Stage IV Squamous Cell Lung Cancer and No Matching Biomarker (Lung-Map Sub-Study)
Enrollment Status: Active_not_recruiting
Publish Date: May 21, 2025
Intervention Type: Other, Biological
Study Drugs: Ipilimumab, Nivolumab
Study Phase: Phase 3
A Randomized, Open-Label, Phase 3 Study of Abemaciclib Combined With Standard Adjuvant Endocrine Therapy Versus Standard Adjuvant Endocrine Therapy Alone in Patients With High Risk, Node Positive, Early Stage, Hormone Receptor Positive, Human Epidermal Receptor 2 Negative, Breast Cancer
A Randomized, Open-Label, Phase 3 Study of Abemaciclib Combined With Standard Adjuvant Endocrine Therapy Versus Standard Adjuvant Endocrine Therapy Alone in Patients With High Risk, Node Positive, Early Stage, Hormone Receptor Positive, Human Epidermal Receptor 2 Negative, Breast Cancer
Enrollment Status: Active_not_recruiting
Publish Date: April 20, 2025
Intervention Type: Drug
Study Drugs: Abemaciclib, Standard Adjuvant Endocrine Therapy
Study Phase: Phase 3
A Double Blind Placebo-Controlled Trial of Eflornithine and Sulindac to Prevent Recurrence of High Risk Adenomas and Second Primary Colorectal Cancers in Patients With Stage 0-III Colon or Rectal Cancer, Phase III - Preventing Adenomas of the Colon With Eflornithine and Sulindac (PACES)
A Double Blind Placebo-Controlled Trial of Eflornithine and Sulindac to Prevent Recurrence of High Risk Adenomas and Second Primary Colorectal Cancers in Patients With Stage 0-III Colon or Rectal Cancer, Phase III - Preventing Adenomas of the Colon With Eflornithine and Sulindac (PACES)
Enrollment Status: Active_not_recruiting
Publish Date: March 30, 2025
Intervention Type: Drug
Study Phase: Phase 3
A Phase 3, Randomized Study of Margetuximab Plus Chemotherapy vs Trastuzumab Plus Chemotherapy in the Treatment of Patients With HER2+ Metastatic Breast Cancer Who Have Received Prior Anti-HER2 Therapies and Require Systemic Treatment
A Phase 3, Randomized Study of Margetuximab Plus Chemotherapy vs Trastuzumab Plus Chemotherapy in the Treatment of Patients With HER2+ Metastatic Breast Cancer Who Have Received Prior Anti-HER2 Therapies and Require Systemic Treatment
Enrollment Status: Completed
Publish Date: March 17, 2025
Intervention Type: Drug, Biological
Study Drugs: Margetuximab, Trastuzumab, Capecitabine, Eribulin, Gemcitabine, Vinorelbine
Study Phase: Phase 3
A Randomized Phase III Trial Comparing Axillary Lymph Node Dissection to Axillary Radiation in Breast Cancer Patients (cT1-3 N1) Who Have Positive Sentinel Lymph Node Disease After Neoadjuvant Chemotherapy
A Randomized Phase III Trial Comparing Axillary Lymph Node Dissection to Axillary Radiation in Breast Cancer Patients (cT1-3 N1) Who Have Positive Sentinel Lymph Node Disease After Neoadjuvant Chemotherapy
Enrollment Status: Active_not_recruiting
Publish Date: January 13, 2025
Intervention Type: Radiation, Procedure
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
Alternate Approaches for Clinical Stage II or III Estrogen Receptor Positive Breast Cancer Neoadjuvant Treatment (ALTERNATE) in Postmenopausal Women: a Phase III Study
Alternate Approaches for Clinical Stage II or III Estrogen Receptor Positive Breast Cancer Neoadjuvant Treatment (ALTERNATE) in Postmenopausal Women: a Phase III Study
Enrollment Status: Active_not_recruiting
Publish Date: January 10, 2025
Intervention Type: Drug
Study Drugs: Fulvestrant, Anastrozole
Study Phase: Phase 3
Phase III Randomized, Placebo-Controlled Clinical Trial Evaluating the Use of Adjuvant Endocrine Therapy +/- One Year of Everolimus in Patients With High-Risk, Hormone Receptor-Positive and HER2/Neu Negative Breast Cancer
Phase III Randomized, Placebo-Controlled Clinical Trial Evaluating the Use of Adjuvant Endocrine Therapy +/- One Year of Everolimus in Patients With High-Risk, Hormone Receptor-Positive and HER2/Neu Negative Breast Cancer
Enrollment Status: Active_not_recruiting
Publish Date: December 27, 2024
Intervention Type: Drug, Other
Study Drugs: Anastrozole, Everolimus, Exemestane, Goserelin Acetate, Letrozole, Leuprolide Acetate, Tamoxifen Citrate
Study Phase: Phase 3
A Randomized Phase III Trial of Adjuvant Therapy Comparing Doxorubicin Plus Cyclophosphamide Followed by Weekly Paclitaxel With or Without Carboplatin for Node-Positive or High-Risk Node-Negative Triple-Negative Invasive Breast Cancer
A Randomized Phase III Trial of Adjuvant Therapy Comparing Doxorubicin Plus Cyclophosphamide Followed by Weekly Paclitaxel With or Without Carboplatin for Node-Positive or High-Risk Node-Negative Triple-Negative Invasive Breast Cancer
Enrollment Status: Active_not_recruiting
Publish Date: June 03, 2024
Intervention Type: Drug, Other
Study Drugs: Carboplatin, Cyclophosphamide, Doxorubicin Hydrochloride, Paclitaxel
Study Phase: Phase 3
A Randomized Phase III Clinical Trial Evaluating Post-Mastectomy Chestwall and Regional Nodal XRT and Post-Lumpectomy Regional Nodal XRT in Patients With Positive Axillary Nodes Before Neoadjuvant Chemotherapy Who Convert to Pathologically Negative Axillary Nodes After Neoadjuvant Chemotherapy
A Randomized Phase III Clinical Trial Evaluating Post-Mastectomy Chestwall and Regional Nodal XRT and Post-Lumpectomy Regional Nodal XRT in Patients With Positive Axillary Nodes Before Neoadjuvant Chemotherapy Who Convert to Pathologically Negative Axillary Nodes After Neoadjuvant Chemotherapy
Enrollment Status: Active_not_recruiting
Publish Date: December 27, 2023
Intervention Type: Radiation
Study Phase: Not Applicable
A Sero-Epidemiologic Survey and Cost Effectiveness Study of Screening for Human Immunodeficiency Virus (HIV), Hepatitis B Virus (HBV) and Hepatitis C Virus (HCV) Among Newly Diagnosed Cancer Patients
A Sero-Epidemiologic Survey and Cost Effectiveness Study of Screening for Human Immunodeficiency Virus (HIV), Hepatitis B Virus (HBV) and Hepatitis C Virus (HCV) Among Newly Diagnosed Cancer Patients
Enrollment Status: Completed
Publish Date: July 03, 2023
Phase III Comparison of Thoracic Radiotherapy Regimens in Patients With Limited Small Cell Lung Cancer Also Receiving Cisplatin and Etoposide
Phase III Comparison of Thoracic Radiotherapy Regimens in Patients With Limited Small Cell Lung Cancer Also Receiving Cisplatin and Etoposide
Enrollment Status: Unknown
Publish Date: June 12, 2023
Intervention Type: Drug, Radiation
Study Drugs: Cisplatin, Etoposide, Carboplatin
Study Phase: Phase 3
A Phase II Study of MEDI4736 (Durvalumab) Plus Tremelimumab as Therapy for Patients With Previously Treated Anti-PD-1/PD-L1 Resistant Stage IV Squamous Cell Lung Cancer (Lung-Map Non-Match Sub-Study)
A Phase II Study of MEDI4736 (Durvalumab) Plus Tremelimumab as Therapy for Patients With Previously Treated Anti-PD-1/PD-L1 Resistant Stage IV Squamous Cell Lung Cancer (Lung-Map Non-Match Sub-Study)
Enrollment Status: Completed
Publish Date: June 09, 2023
Intervention Type: Biological, Other
Study Drugs: Durvalumab, Tremelimumab
Study Phase: Phase 2
A Biomarker-Driven Master Protocol for Previously Treated Squamous Cell Lung Cancer (Lung-Map)
A Biomarker-Driven Master Protocol for Previously Treated Squamous Cell Lung Cancer (Lung-Map)
Enrollment Status: Completed
Publish Date: June 01, 2023
Intervention Type: Biological, Drug, Other
A Randomized Phase III Double Blinded Placebo Controlled Trial of Aspirin as Adjuvant Therapy for HER2 Negative Breast Cancer: The ABC Trial
A Randomized Phase III Double Blinded Placebo Controlled Trial of Aspirin as Adjuvant Therapy for HER2 Negative Breast Cancer: The ABC Trial
Enrollment Status: Terminated
Publish Date: April 05, 2023
Intervention Type: Other, Drug
Study Drug: Aspirin
Study Phase: Phase 3
Implementation of a Prospective Financial Impact Assessment Tool in Patients With Metastatic Colorectal Cancer
Implementation of a Prospective Financial Impact Assessment Tool in Patients With Metastatic Colorectal Cancer
Enrollment Status: Completed
Publish Date: January 26, 2023
Intervention Type: Other
Randomized Blinded Sham- and Waitlist-Controlled Trial of Acupuncture for Joint Symptoms Related to Aromatase Inhibitors in Women With Early Stage Breast Cancer
Randomized Blinded Sham- and Waitlist-Controlled Trial of Acupuncture for Joint Symptoms Related to Aromatase Inhibitors in Women With Early Stage Breast Cancer
Enrollment Status: Completed
Publish Date: December 07, 2022
Intervention Type: Procedure
Study Phase: Not Applicable
A Randomized Phase II/III Study of Paclitaxel/Carboplatin/Metformin (NSC#91485) Versus Paclitaxel/Carboplatin/Placebo as Initial Therapy for Measurable Stage III or IVA, Stage IVB, or Recurrent Endometrial Cancer
A Randomized Phase II/III Study of Paclitaxel/Carboplatin/Metformin (NSC#91485) Versus Paclitaxel/Carboplatin/Placebo as Initial Therapy for Measurable Stage III or IVA, Stage IVB, or Recurrent Endometrial Cancer
Enrollment Status: Unknown
Publish Date: September 30, 2021
Intervention Type: Other, Drug
Study Drugs: Carboplatin, Metformin hydrochloride, Paclitaxel
Study Phase: Phase 2/Phase 3
A Phase II Study of Talazoparib (BMN 673) in Patients With Homologous Recombination Repair Deficiency Positive Stage IV Squamous Cell Lung Cancer (Lung-Map Sub-Study)
A Phase II Study of Talazoparib (BMN 673) in Patients With Homologous Recombination Repair Deficiency Positive Stage IV Squamous Cell Lung Cancer (Lung-Map Sub-Study)
Enrollment Status: Completed
Publish Date: June 23, 2021
Intervention Type: Other, Drug
Study Drug: Talazoparib
Study Phase: Phase 2
A Phase II Study of Palbociclib for Previously Treated Cell Cycle Gene Alteration Positive Patients With Stage IV Squamous Cell Lung Cancer (Lung-Map Sub-Study)
A Phase II Study of Palbociclib for Previously Treated Cell Cycle Gene Alteration Positive Patients With Stage IV Squamous Cell Lung Cancer (Lung-Map Sub-Study)
Enrollment Status: Completed
Publish Date: May 27, 2021
Intervention Type: Other, Drug
Study Drugs: Docetaxel, Palbociclib
Study Phase: Phase 2/Phase 3
A California Cooperative Clinical Study Comparing Allogeneic Hematopoietic Cell Transplantation Using Nonmyeloablative Host Conditioning With Total Lymphoid Irradiation and Anti-thymocyte Globulin Versus Best Standard of Care in Acute Myeloid Leukemia (AML) in First Complete Remission
A California Cooperative Clinical Study Comparing Allogeneic Hematopoietic Cell Transplantation Using Nonmyeloablative Host Conditioning With Total Lymphoid Irradiation and Anti-thymocyte Globulin Versus Best Standard of Care in Acute Myeloid Leukemia (AML) in First Complete Remission
Enrollment Status: Terminated
Publish Date: September 24, 2019
Intervention Type: Drug, Procedure, Radiation
Study Phase: Phase 3
A Randomized Multicenter Pivotal Study of CDX-011 (CR011-vcMMAE)in Patients With Metastatic, gpNMB Over-Expressing, Triple Negative Breast Cancer (The METRIC Study)
A Randomized Multicenter Pivotal Study of CDX-011 (CR011-vcMMAE)in Patients With Metastatic, gpNMB Over-Expressing, Triple Negative Breast Cancer (The METRIC Study)
Enrollment Status: Completed
Publish Date: March 08, 2019
Intervention Type: Drug
Study Phase: Phase 2
View 31 Less Clinical Trials

66 Total Publications

Utility of the 70-Gene MammaPrint Assay for Prediction of Benefit From Extended Letrozole Therapy in the NRG Oncology/NSABP B-42 Trial.
Utility of the 70-Gene MammaPrint Assay for Prediction of Benefit From Extended Letrozole Therapy in the NRG Oncology/NSABP B-42 Trial.
Journal: Journal of clinical oncology : official journal of the American Society of Clinical Oncology
Published: July 24, 2024
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Areas of Expertise

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