- Conditions
- B-cell Acute Lymphoblastic Leukemia
- Interventions
- Blinatumomab
- Drug
- Lead sponsor
- Dorothy Sipkins, MD, PhD
- Other
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2023
- U.S. locations
- 3
- States / cities
- Tampa, Florida • Durham, North Carolina • Winston-Salem, North Carolina
Search Results
Search by objective public record fields.
Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.
These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Showing 121–144
of 804
matching trials from the live ClinicalTrials.gov search.
- Conditions
- Adult Nasal Type Extranodal NK/T-cell Lymphoma, Anaplastic Large Cell Lymphoma, Angioimmunoblastic T-cell Lymphoma, B-cell Adult Acute Lymphoblastic Leukemia, Extranodal Marginal Zone B-cell Lymphoma of Mucosa-associated Lymphoid Tissue, Hepatosplenic T-cell Lymphoma, Nodal Marginal Zone B-cell Lymphoma, Post-transplant Lymphoproliferative Disorder, Primary Central Nervous System Non-Hodgkin Lymphoma, Recurrent Adult Acute Lymphoblastic Leukemia, Recurrent Adult Burkitt Lymphoma, Recurrent Adult Diffuse Large Cell Lymphoma, Recurrent Adult Hodgkin Lymphoma, Recurrent Adult Lymphoblastic Lymphoma, Recurrent Adult T-cell Leukemia/Lymphoma, Recurrent Cutaneous T-cell Non-Hodgkin Lymphoma, Recurrent Grade 1 Follicular Lymphoma, Recurrent Grade 2 Follicular Lymphoma, Recurrent Grade 3 Follicular Lymphoma, Recurrent Mantle Cell Lymphoma, Recurrent Marginal Zone Lymphoma, Recurrent Mycosis Fungoides/Sezary Syndrome, Recurrent Small Lymphocytic Lymphoma, Refractory Chronic Lymphocytic Leukemia, Refractory Multiple Myeloma, Splenic Marginal Zone Lymphoma, T-cell Adult Acute Lymphoblastic Leukemia, Waldenström Macroglobulinemia
- Interventions
- panobinostat, everolimus, laboratory biomarker analysis, pharmacological study
- Drug · Other
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 124 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2009 – 2019
- U.S. locations
- 3
- States / cities
- Scottsdale, Arizona • Bethesda, Maryland • Rochester, Minnesota
- Conditions
- AIDS-Related-Primary Central Nervous System Lymphoma
- Interventions
- Methotrexate, Rituximab, Leucovorin
- Drug
- Lead sponsor
- National Cancer Institute (NCI)
- NIH
- Eligibility
- 18 Years to 99 Years
- Enrollment
- 12 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2019
- U.S. locations
- 1
- States / cities
- Bethesda, Maryland
- Conditions
- Herpes Simplex
- Interventions
- Valaciclovir
- Drug
- Lead sponsor
- GlaxoSmithKline
- Industry
- Eligibility
- 1 Month to 6 Years
- Enrollment
- 36 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2007
- U.S. locations
- 10
- States / cities
- Birmingham, Alabama • Little Rock, Arkansas • San Diego, California + 7 more
- Conditions
- Nasopharyngeal Carcinoma, Nasopharyngeal Neoplasms, Epstein-Barr Virus Infections, Epstein-Barr Viraemia, Epstein-Barr Virus-associated Nasopharyngeal Carcinoma (EBV+ NPC)
- Interventions
- Tabelecleucel, Pembrolizumab
- Biological
- Lead sponsor
- Atara Biotherapeutics
- Industry
- Eligibility
- 12 Years and older
- Enrollment
- 12 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2021
- U.S. locations
- 7
- States / cities
- Duarte, California • Palo Alto, California • Boston, Massachusetts + 3 more
- Conditions
- Leukemia, Lymphoma, Myelodysplastic Syndromes, Myelodysplastic-Myeloproliferative Diseases
- Interventions
- anti-thymocyte globulin, filgrastim, busulfan, cyclophosphamide, cyclosporine, fludarabine phosphate, melphalan, methylprednisolone, umbilical cord blood transplantation, radiation therapy
- Biological · Drug · Procedure + 1 more
- Lead sponsor
- Roswell Park Cancer Institute
- Other
- Eligibility
- Up to 17 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2003 – 2005
- U.S. locations
- 25
- States / cities
- Duarte, California • Los Angeles, California • Orange, California + 20 more
- Conditions
- Fever, Sweats, and Hot Flashes, Infection, Kidney Cancer, Leukemia, Lymphoma, Neuroblastoma, Neutropenia, Sarcoma
- Interventions
- caspofungin acetate
- Drug
- Lead sponsor
- National Cancer Institute (NCI)
- NIH
- Eligibility
- 2 Years to 17 Years
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2001 – 2003
- U.S. locations
- 5
- States / cities
- Washington D.C., District of Columbia • Baltimore, Maryland • Bethesda, Maryland + 1 more
- Conditions
- EBV Infection, Stage II Nasopharyngeal Carcinoma AJCC v7, Stage III Nasopharyngeal Carcinoma AJCC v7, Stage IVA Nasopharyngeal Carcinoma AJCC v7, Stage IVB Nasopharyngeal Carcinoma AJCC v7
- Interventions
- Bone Scan, Cisplatin, Clinical Observation, Computed Tomography, Fluorouracil, Gemcitabine Hydrochloride, Intensity-Modulated Radiation Therapy, Laboratory Biomarker Analysis, Magnetic Resonance Imaging, Paclitaxel, Positron Emission Tomography, Quality-of-Life Assessment
- Procedure · Drug · Other + 1 more
- Lead sponsor
- NRG Oncology
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 924 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2014 – 2034
- U.S. locations
- 197
- States / cities
- Birmingham, Alabama • Tucson, Arizona • Auburn, California + 150 more
- Conditions
- Lymphoma, HIV
- Interventions
- Autologous transplant, BCNU, Etoposide, Cytarabine, Melphalan
- Procedure · Drug
- Lead sponsor
- Medical College of Wisconsin
- Other
- Eligibility
- 15 Years and older
- Enrollment
- 43 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2016
- U.S. locations
- 16
- States / cities
- Duarte, California • La Jolla, California • Los Angeles, California + 10 more
- Conditions
- Extranodal Marginal Zone B-cell Lymphoma of Mucosa-associated Lymphoid Tissue, Nodal Marginal Zone B-cell Lymphoma, Recurrent Adult Burkitt Lymphoma, Recurrent Adult Diffuse Large Cell Lymphoma, Recurrent Adult Diffuse Mixed Cell Lymphoma, Recurrent Adult Diffuse Small Cleaved Cell Lymphoma, Recurrent Adult Hodgkin Lymphoma, Recurrent Adult Immunoblastic Large Cell Lymphoma, Recurrent Adult Lymphoblastic Lymphoma, Recurrent Adult T-cell Leukemia/Lymphoma, Recurrent Cutaneous T-cell Non-Hodgkin Lymphoma, Recurrent Grade 1 Follicular Lymphoma, Recurrent Grade 2 Follicular Lymphoma, Recurrent Grade 3 Follicular Lymphoma, Recurrent Mantle Cell Lymphoma, Recurrent Marginal Zone Lymphoma, Recurrent Small Lymphocytic Lymphoma, Splenic Marginal Zone Lymphoma, Stage IV Adult Burkitt Lymphoma, Stage IV Adult Diffuse Large Cell Lymphoma, Stage IV Adult Diffuse Mixed Cell Lymphoma, Stage IV Adult Diffuse Small Cleaved Cell Lymphoma, Stage IV Adult Hodgkin Lymphoma, Stage IV Adult Immunoblastic Large Cell Lymphoma, Stage IV Adult Lymphoblastic Lymphoma, Stage IV Adult T-cell Leukemia/Lymphoma, Stage IV Cutaneous T-cell Non-Hodgkin Lymphoma, Stage IV Grade 1 Follicular Lymphoma, Stage IV Grade 2 Follicular Lymphoma, Stage IV Grade 3 Follicular Lymphoma, Stage IV Mantle Cell Lymphoma, Stage IV Marginal Zone Lymphoma, Stage IV Small Lymphocytic Lymphoma, Unspecified Adult Solid Tumor, Protocol Specific
- Interventions
- oblimersen sodium, gemcitabine hydrochloride, pharmacological study, laboratory biomarker analysis
- Biological · Drug · Other
- Lead sponsor
- National Cancer Institute (NCI)
- NIH
- Eligibility
- 18 Years and older
- Enrollment
- 15 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- Started 2003
- U.S. locations
- 1
- States / cities
- Stanford, California
- Conditions
- Non-Hodgkin Lymphoma, Burkitt Lymphoma, Diffuse Large B-Cell Lymphoma, Primary Mediastinal B-cell Lymphoma, CD20+ Lymphoblastic Lymphoma, Follicular Lymphoma, Grade III
- Interventions
- Obinutuzumab, Liposomal ARA-C, Ifosfamide, Carboplatin, Etoposide
- Drug
- Lead sponsor
- New York Medical College
- Other
- Eligibility
- 3 Years to 31 Years
- Enrollment
- 25 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2027
- U.S. locations
- 1
- States / cities
- Valhalla, New York
- Conditions
- Adenovirus Infection, BK Virus Infection, Cytomegalovirus Infections, Epstein-Barr Virus Infections, Human Herpes Virus-6 Infection, JC Virus Infection
- Interventions
- Posoleucel (ALVR105)
- Biological
- Lead sponsor
- AlloVir
- Industry
- Eligibility
- 1 Year and older
- Enrollment
- 26 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2023
- U.S. locations
- 16
- States / cities
- Birmingham, Alabama • Duarte, California • San Francisco, California + 12 more
- Conditions
- Diffuse Large B Cell Lymphoma, Primary Mediastinal Large B Cell Lymphoma, Transformed Follicular Lymphoma to Diffuse Large B Cell Lymphoma, Chronic Lymphocytic Leukemia, Indolent Non-Hodgkin Lymphoma, Marginal Zone Lymphoma, Waldenstrom Macroglobulinemia, Burkitt's Lymphoma, Primary CNS Lymphoma
- Interventions
- 19(T2)28z1xx CAR T cells
- Drug
- Lead sponsor
- Memorial Sloan Kettering Cancer Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2027
- U.S. locations
- 7
- States / cities
- Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
- Conditions
- Lymphoma
- Interventions
- irinotecan hydrochloride
- Drug
- Lead sponsor
- M.D. Anderson Cancer Center
- Other
- Eligibility
- 15 Years to 75 Years
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1998 – 2004
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Epstein-Barr Virus Infection
- Interventions
- mRNA-1195.1, mRNA-1195.2, mRNA-1189, Placebo, mRNA-1195
- Biological
- Lead sponsor
- ModernaTX, Inc.
- Industry
- Eligibility
- 18 Years to 55 Years
- Enrollment
- 482 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2026
- U.S. locations
- 34
- States / cities
- Anniston, Alabama • Tucson, Arizona • Huntington Beach, California + 30 more
- Conditions
- Lymphoid Malignancies (New or Relapsed), Acute Lymphoblastic Leukemia, Burkitt Lymphoma, Lymphoblastic Lymphoma, Mantle Cell Lymphoma, Adult T-cell Leukemia/Lymphoma
- Interventions
- Hyper-CVAD, Sirolimus
- Drug
- Lead sponsor
- Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 7 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2010 – 2013
- U.S. locations
- 2
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- B Cell Acute Lymphoblastic Leukemia (B-ALL), B Lineage Lymphoblastic Lymphoma
- Interventions
- Autologous Humanized CD19-Directed Chimeric Antigen Receptor T-Cells (huCART19)
- Biological
- Lead sponsor
- Stephan Grupp MD PhD
- Other
- Eligibility
- 0 Years to 29 Years
- Enrollment
- 115 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2029
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
- Conditions
- B-cell Malignancy, Non-Hodgkin Lymphoma, B-cell Lymphoma, Adult B Cell ALL
- Interventions
- CTX110
- Biological
- Lead sponsor
- CRISPR Therapeutics AG
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 93 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2024
- U.S. locations
- 21
- States / cities
- Los Angeles, California • San Francisco, California • Jacksonville, Florida + 18 more
- Conditions
- Chronic Myeloproliferative Disorders, Fatigue, Leukemia, Lymphoma, Multiple Myeloma and Plasma Cell Neoplasm, Myelodysplastic Syndromes, Precancerous Condition, Unspecified Adult Solid Tumor, Protocol Specific
- Interventions
- St. John's wort
- Dietary Supplement
- Lead sponsor
- Memorial Sloan Kettering Cancer Center
- Other
- Eligibility
- 18 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- Started 1999
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Leukemia, Lymphoma, Multiple Myeloma and Plasma Cell Neoplasm
- Interventions
- arsenic trioxide
- Drug
- Lead sponsor
- Memorial Sloan Kettering Cancer Center
- Other
- Eligibility
- 17 Years and older
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1998 – 2000
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Chronic Myeloproliferative Disorders, Diamond-blackfan Anemia, Fanconi Anemia, Graft Versus Host Disease, Leukemia, Lymphoma, Multiple Myeloma and Plasma Cell Neoplasm, Myelodysplastic Syndromes, Myelodysplastic/Myeloproliferative Diseases
- Interventions
- anti-thymocyte globulin, busulfan, cyclophosphamide, cyclosporine, filgrastim, melphalan, methylprednisolone, mycophenolate mofetil, radiation therapy, umbilical cord blood transplantation
- Drug · Procedure
- Lead sponsor
- Masonic Cancer Center, University of Minnesota
- Other
- Eligibility
- Up to 45 Years
- Enrollment
- 43 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 1999 – 2007
- U.S. locations
- 1
- States / cities
- Minneapolis, Minnesota
- Conditions
- Adult Acute Myeloid Leukemia With 11q23 (MLL) Abnormalities, Adult Acute Myeloid Leukemia With Inv(16)(p13;q22), Adult Acute Myeloid Leukemia With t(15;17)(q22;q12), Adult Acute Myeloid Leukemia With t(16;16)(p13;q22), Adult Acute Myeloid Leukemia With t(8;21)(q22;q22), Atypical Chronic Myeloid Leukemia, BCR-ABL1 Negative, Childhood Myelodysplastic Syndromes, Chronic Myelogenous Leukemia, BCR-ABL1 Positive, Disseminated Neuroblastoma, Malignant Neoplasm, Ovarian Choriocarcinoma, Ovarian Embryonal Carcinoma, Ovarian Immature Teratoma, Ovarian Mature Teratoma, Ovarian Mixed Germ Cell Tumor, Ovarian Monodermal and Highly Specialized Teratoma, Ovarian Polyembryoma, Ovarian Yolk Sac Tumor, Previously Treated Myelodysplastic Syndromes, Recurrent Adult Acute Lymphoblastic Leukemia, Recurrent Adult Acute Myeloid Leukemia, Recurrent Adult Burkitt Lymphoma, Recurrent Adult Diffuse Large Cell Lymphoma, Recurrent Adult Diffuse Mixed Cell Lymphoma, Recurrent Adult Hodgkin Lymphoma, Recurrent Adult Immunoblastic Large Cell Lymphoma, Recurrent Adult Lymphoblastic Lymphoma, Recurrent Grade 3 Follicular Lymphoma, Recurrent Malignant Testicular Germ Cell Tumor, Recurrent Mantle Cell Lymphoma, Recurrent Neuroblastoma, Recurrent Ovarian Epithelial Cancer, Recurrent Ovarian Germ Cell Tumor, Refractory Chronic Lymphocytic Leukemia, Refractory Multiple Myeloma, Relapsing Chronic Myelogenous Leukemia, Stage I Multiple Myeloma, Stage II Multiple Myeloma, Stage II Ovarian Epithelial Cancer, Stage III Malignant Testicular Germ Cell Tumor, Stage III Multiple Myeloma, Stage III Ovarian Epithelial Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer, Stage IV Ovarian Epithelial Cancer, Testicular Choriocarcinoma, Testicular Choriocarcinoma and Embryonal Carcinoma, Testicular Choriocarcinoma and Seminoma, Testicular Choriocarcinoma and Teratoma, Testicular Choriocarcinoma and Yolk Sac Tumor, Testicular Embryonal Carcinoma, Testicular Embryonal Carcinoma and Seminoma, Testicular Embryonal Carcinoma and Teratoma, Testicular Embryonal Carcinoma and Teratoma With Seminoma, Testicular Embryonal Carcinoma and Yolk Sac Tumor, Testicular Embryonal Carcinoma and Yolk Sac Tumor With Seminoma, Testicular Teratoma, Testicular Yolk Sac Tumor, Testicular Yolk Sac Tumor and Teratoma, Testicular Yolk Sac Tumor and Teratoma With Seminoma
- Interventions
- ipilimumab, therapeutic allogeneic lymphocytes
- Drug
- Lead sponsor
- National Cancer Institute (NCI)
- NIH
- Eligibility
- 18 Years and older
- Enrollment
- 21 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- Started 2003
- U.S. locations
- 5
- States / cities
- La Jolla, California • Atlanta, Georgia • Boston, Massachusetts
- Conditions
- Hematologic Malignancies
- Interventions
- Haplo HCT ≥55 years old, GVHD Prophylaxis, Haplo HCT ≥55 and < 65 years old, Haplo HCT ≥65 and ≤75 years old
- Biological · Drug
- Lead sponsor
- Masonic Cancer Center, University of Minnesota
- Other
- Eligibility
- Up to 75 Years
- Enrollment
- 78 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2025
- U.S. locations
- 1
- States / cities
- Minneapolis, Minnesota
- Conditions
- Adult Grade III Lymphomatoid Granulomatosis, Adult Nasal Type Extranodal NK/T-cell Lymphoma, Anaplastic Large Cell Lymphoma, Angioimmunoblastic T-cell Lymphoma, Childhood Burkitt Lymphoma, Childhood Diffuse Large Cell Lymphoma, Childhood Grade III Lymphomatoid Granulomatosis, Childhood Immunoblastic Large Cell Lymphoma, Childhood Nasal Type Extranodal NK/T-cell Lymphoma, Cutaneous B-cell Non-Hodgkin Lymphoma, Extranodal Marginal Zone B-cell Lymphoma of Mucosa-associated Lymphoid Tissue, Hepatosplenic T-cell Lymphoma, Intraocular Lymphoma, Nodal Marginal Zone B-cell Lymphoma, Noncutaneous Extranodal Lymphoma, Peripheral T-cell Lymphoma, Progressive Hairy Cell Leukemia, Initial Treatment, Recurrent Adult Burkitt Lymphoma, Recurrent Adult Diffuse Large Cell Lymphoma, Recurrent Adult Diffuse Mixed Cell Lymphoma, Recurrent Adult Diffuse Small Cleaved Cell Lymphoma, Recurrent Adult Hodgkin Lymphoma, Recurrent Adult Immunoblastic Large Cell Lymphoma, Recurrent Adult Lymphoblastic Lymphoma, Recurrent Adult T-cell Leukemia/Lymphoma, Recurrent Childhood Anaplastic Large Cell Lymphoma, Recurrent Childhood Large Cell Lymphoma, Recurrent Childhood Lymphoblastic Lymphoma, Recurrent Childhood Small Noncleaved Cell Lymphoma, Recurrent Grade 1 Follicular Lymphoma, Recurrent Grade 2 Follicular Lymphoma, Recurrent Grade 3 Follicular Lymphoma, Recurrent Mantle Cell Lymphoma, Recurrent Mycosis Fungoides/Sezary Syndrome, Recurrent/Refractory Childhood Hodgkin Lymphoma, Refractory Hairy Cell Leukemia, Small Intestine Lymphoma, Splenic Marginal Zone Lymphoma, Stage IV Adult Burkitt Lymphoma, Stage IV Adult Diffuse Large Cell Lymphoma, Stage IV Adult Diffuse Mixed Cell Lymphoma, Stage IV Adult Diffuse Small Cleaved Cell Lymphoma, Stage IV Adult Hodgkin Lymphoma, Stage IV Adult Immunoblastic Large Cell Lymphoma, Stage IV Adult Lymphoblastic Lymphoma, Stage IV Adult T-cell Leukemia/Lymphoma, Stage IV Childhood Anaplastic Large Cell Lymphoma, Stage IV Childhood Hodgkin Lymphoma, Stage IV Childhood Large Cell Lymphoma, Stage IV Childhood Lymphoblastic Lymphoma, Stage IV Childhood Small Noncleaved Cell Lymphoma, Stage IV Grade 1 Follicular Lymphoma, Stage IV Grade 2 Follicular Lymphoma, Stage IV Grade 3 Follicular Lymphoma, Stage IV Mantle Cell Lymphoma, Stage IVA Mycosis Fungoides/Sezary Syndrome, Stage IVB Mycosis Fungoides/Sezary Syndrome, T-cell Large Granular Lymphocyte Leukemia, Testicular Lymphoma, Unspecified Adult Solid Tumor, Protocol Specific, Unspecified Childhood Solid Tumor, Protocol Specific, Waldenström Macroglobulinemia
- Interventions
- bevacizumab, cediranib maleate
- Biological · Drug
- Lead sponsor
- National Cancer Institute (NCI)
- NIH
- Eligibility
- 15 Years and older
- Enrollment
- 57 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- Started 2007
- U.S. locations
- 1
- States / cities
- Houston, Texas