Independent directory Public ClinicalTrials.gov records United States
Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 7, 2026, 7:41 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–48 of 212 matching trials from the live ClinicalTrials.gov search.
Conditions
Colorectal Cancer, Endometrial Cancer, Head and Neck Cancer, Liver Cancer, Lung Cancer, Melanoma (Skin), Pancreatic Cancer, Testicular Germ Cell Tumor, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
aldesleukin, ras peptide cancer vaccine, sargramostim, DetoxPC
Biological · Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Advanced Colorectal Carcinoma, Advanced Lung Non-Small Cell Carcinoma, Advanced Pancreatic Adenocarcinoma, Stage IV Colorectal Cancer AJCC v8, Stage IV Lung Cancer AJCC v8, Stage IV Pancreatic Cancer AJCC v8, Unresectable Colorectal Carcinoma, Unresectable Lung Non-Small Cell Carcinoma, Unresectable Pancreatic Adenocarcinoma
Interventions
Biospecimen Collection, Computed Tomography, Electronic Health Record Review, Medical Device Usage and Evaluation, Physical Performance Testing, Positron Emission Tomography, Survey Administration
Procedure · Other
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
225
States / cities
Fort Smith, Arkansas • Aurora, Colorado • Boulder, Colorado + 160 more
Conditions
Lung Cancer
Interventions
bevacizumab, carboplatin, hydroxychloroquine, paclitaxel
Biological · Drug
Lead sponsor
University of Medicine and Dentistry of New Jersey
Other
Eligibility
18 Years to 120 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
2
States / cities
Hamilton, New Jersey • New Brunswick, New Jersey
Conditions
Lung Cancer
Interventions
HPPH, endoscopic procedure
Drug · Procedure
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
1
States / cities
Buffalo, New York
Conditions
Breast Cancer, Colorectal Cancer, Lung Cancer, Pancreatic Cancer
Interventions
CI-1040
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
1
States / cities
Birmingham, Alabama
Conditions
Stage IV Non-small Cell Lung Cancer
Interventions
Belinostat, Carboplatin, Paclitaxel
Drug
Lead sponsor
Acrotech Biopharma Inc.
Industry
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
4
States / cities
Huntsville, Alabama • Santa Monica, California • Boynton Beach, Florida + 1 more
Conditions
Cachexia
Interventions
BYM338 active drug, Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
6
States / cities
Tucson, Arizona • Tampa, Florida • Chicago, Illinois + 3 more
Conditions
Lung Cancer
Interventions
carboplatin, irinotecan hydrochloride, thalidomide
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 120 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2004
U.S. locations
5
States / cities
Decatur, Illinois • Goldsboro, North Carolina • Winston-Salem, North Carolina + 2 more
Conditions
Lung Cancer
Interventions
Paclitaxel, Carboplatin, Bevacizumab, Pemetrexed Disodium Heptahydrate
Drug · Biological
Lead sponsor
ECOG-ACRIN Cancer Research Group
Network
Eligibility
18 Years and older
Enrollment
1,516 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2021
U.S. locations
434
States / cities
Anniston, Alabama • Fairbanks, Alaska • Fairfield, California + 312 more
Conditions
Advanced Differentiated Thyroid Gland Carcinoma, Advanced Head and Neck Carcinoma, Advanced Hepatocellular Carcinoma, Advanced Kaposi Sarcoma, Advanced Lung Non-Small Cell Carcinoma, Advanced Lung Small Cell Carcinoma, Advanced Malignant Solid Neoplasm, Advanced Melanoma, Advanced Ovarian Carcinoma, Advanced Prostate Carcinoma, Advanced Renal Cell Carcinoma, Advanced Thyroid Gland Medullary Carcinoma, Advanced Triple-Negative Breast Carcinoma, Advanced Urothelial Carcinoma, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8, Castration-Resistant Prostate Carcinoma, Clinical Stage III Cutaneous Melanoma AJCC v8, Clinical Stage IV Cutaneous Melanoma AJCC v8, HIV Infection, Metastatic Differentiated Thyroid Gland Carcinoma, Metastatic Head and Neck Carcinoma, Metastatic Hepatocellular Carcinoma, Metastatic Kaposi Sarcoma, Metastatic Lung Non-Small Cell Carcinoma, Metastatic Lung Small Cell Carcinoma, Metastatic Malignant Solid Neoplasm, Metastatic Melanoma, Metastatic Ovarian Carcinoma, Metastatic Prostate Carcinoma, Metastatic Renal Cell Carcinoma, Metastatic Thyroid Gland Medullary Carcinoma, Metastatic Triple-Negative Breast Carcinoma, Metastatic Urothelial Carcinoma, Recurrent Differentiated Thyroid Gland Carcinoma, Recurrent Head and Neck Carcinoma, Recurrent Hepatocellular Carcinoma, Recurrent Kaposi Sarcoma, Recurrent Lung Non-Small Cell Carcinoma, Recurrent Lung Small Cell Carcinoma, Recurrent Malignant Solid Neoplasm, Recurrent Melanoma, Recurrent Ovarian Carcinoma, Recurrent Prostate Carcinoma, Recurrent Renal Cell Carcinoma, Recurrent Thyroid Gland Medullary Carcinoma, Recurrent Triple-Negative Breast Carcinoma, Recurrent Urothelial Carcinoma, Refractory Differentiated Thyroid Gland Carcinoma, Stage III Differentiated Thyroid Gland Carcinoma AJCC v8, Stage III Hepatocellular Carcinoma AJCC v8, Stage III Lung Cancer AJCC v8, Stage III Ovarian Cancer AJCC v8, Stage III Prostate Cancer AJCC v8, Stage III Renal Cell Cancer AJCC v8, Stage III Thyroid Gland Medullary Carcinoma AJCC v8, Stage IV Differentiated Thyroid Gland Carcinoma AJCC v8, Stage IV Hepatocellular Carcinoma AJCC v8, Stage IV Lung Cancer AJCC v8, Stage IV Ovarian Cancer AJCC v8, Stage IV Prostate Cancer AJCC v8, Stage IV Renal Cell Cancer AJCC v8, Stage IV Thyroid Gland Medullary Carcinoma AJCC v8
Interventions
Biospecimen Collection, Cabozantinib S-malate, Computed Tomography, Magnetic Resonance Imaging, Nivolumab
Procedure · Drug · Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
3
States / cities
Chicago, Illinois • The Bronx, New York • Pittsburgh, Pennsylvania
Conditions
Anatomic Stage IV Breast Cancer AJCC v8, Clinical Stage IV Cutaneous Melanoma AJCC v8, Hematopoietic and Lymphoid Cell Neoplasm, Hormone Receptor Positive Breast Adenocarcinoma, Metastatic Lung Non-Small Cell Carcinoma, Metastatic Malignant Neoplasm in the Brain, Metastatic Malignant Solid Neoplasm, Metastatic Melanoma, Metastatic Triple-Negative Breast Carcinoma, Pathologic Stage IV Cutaneous Melanoma AJCC v8, Prognostic Stage IV Breast Cancer AJCC v8, Stage IV Lung Cancer AJCC v8, Stage IVA Lung Cancer AJCC v8, Stage IVB Lung Cancer AJCC v8
Interventions
Bintrafusp Alfa, Pimasertib, Quality-of-Life Assessment
Drug · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Houston, Texas
Conditions
Recurrent Large Cell Lung Carcinoma, Recurrent Lung Adenocarcinoma, Recurrent Squamous Cell Lung Carcinoma, Stage IV Large Cell Lung Carcinoma, Stage IV Lung Adenocarcinoma, Stage IV Squamous Cell Lung Carcinoma
Interventions
Bevacizumab, Carboplatin, Cetuximab, Laboratory Biomarker Analysis, Paclitaxel
Biological · Drug · Other
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years and older
Enrollment
1,333 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2022
U.S. locations
797
States / cities
Anniston, Alabama • Mobile, Alabama • Anchorage, Alaska + 473 more
Conditions
Lung Cancer, Lymphoma, Lymphoproliferative Disorder, Small Intestine Cancer, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
bevacizumab, vandetanib, laboratory biomarker analysis, pharmacological study
Biological · Drug · Other
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Prostate Cancer, Breast Cancer, Lung Cancer, Colorectal Cancer, Leukemia, Multiple Myeloma
Interventions
internet-based intervention, assessment of therapy complications, Questionnaire Administration
Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
325 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2017
U.S. locations
95
States / cities
Castro Valley, California • Fremont, California • Martinez, California + 63 more
Conditions
Colorectal Cancer, Esophageal Cancer, Extrahepatic Bile Duct Cancer, Gallbladder Cancer, Liver Cancer, Lung Cancer, Lymphoma, Pancreatic Cancer, Small Intestine Cancer, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
fluorouracil, gemcitabine hydrochloride, leucovorin calcium
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years and older
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Metastatic Malignant Neoplasm in the Lung, Metastatic Melanoma, Metastatic Osteosarcoma, Metastatic Renal Cell Cancer, Sarcoma, Stage IV Cutaneous Melanoma AJCC v6 and v7, Stage IV Osteosarcoma AJCC v7, Stage IV Renal Cell Cancer AJCC v7
Interventions
Aerosolized Aldesleukin, Laboratory Biomarker Analysis
Biological · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
12 Years to 50 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2029
U.S. locations
1
States / cities
Houston, Texas
Conditions
Lung Cancer
Interventions
bevacizumab, carboplatin, pemetrexed disodium
Biological · Drug
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
70 Years to 120 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
217
States / cities
Scottsdale, Arizona • Aurora, Colorado • Boulder, Colorado + 140 more
Conditions
Metastatic Squamous Neck Cancer With Occult Primary Squamous Cell Carcinoma, Recurrent Adenoid Cystic Carcinoma of the Oral Cavity, Recurrent Basal Cell Carcinoma of the Lip, Recurrent Colon Cancer, Recurrent Esthesioneuroblastoma of the Paranasal Sinus and Nasal Cavity, Recurrent Inverted Papilloma of the Paranasal Sinus and Nasal Cavity, Recurrent Lymphoepithelioma of the Nasopharynx, Recurrent Lymphoepithelioma of the Oropharynx, Recurrent Metastatic Squamous Neck Cancer With Occult Primary, Recurrent Midline Lethal Granuloma of the Paranasal Sinus and Nasal Cavity, Recurrent Mucoepidermoid Carcinoma of the Oral Cavity, Recurrent Non-small Cell Lung Cancer, Recurrent Pancreatic Cancer, Recurrent Rectal Cancer, Recurrent Salivary Gland Cancer, Recurrent Squamous Cell Carcinoma of the Hypopharynx, Recurrent Squamous Cell Carcinoma of the Larynx, Recurrent Squamous Cell Carcinoma of the Lip and Oral Cavity, Recurrent Squamous Cell Carcinoma of the Nasopharynx, Recurrent Squamous Cell Carcinoma of the Oropharynx, Recurrent Squamous Cell Carcinoma of the Paranasal Sinus and Nasal Cavity, Recurrent Verrucous Carcinoma of the Larynx, Recurrent Verrucous Carcinoma of the Oral Cavity, Stage III Adenoid Cystic Carcinoma of the Oral Cavity, Stage III Basal Cell Carcinoma of the Lip, Stage III Colon Cancer, Stage III Esthesioneuroblastoma of the Paranasal Sinus and Nasal Cavity, Stage III Inverted Papilloma of the Paranasal Sinus and Nasal Cavity, Stage III Lymphoepithelioma of the Nasopharynx, Stage III Lymphoepithelioma of the Oropharynx, Stage III Midline Lethal Granuloma of the Paranasal Sinus and Nasal Cavity, Stage III Mucoepidermoid Carcinoma of the Oral Cavity, Stage III Pancreatic Cancer, Stage III Rectal Cancer, Stage III Salivary Gland Cancer, Stage III Squamous Cell Carcinoma of the Hypopharynx, Stage III Squamous Cell Carcinoma of the Larynx, Stage III Squamous Cell Carcinoma of the Lip and Oral Cavity, Stage III Squamous Cell Carcinoma of the Nasopharynx, Stage III Squamous Cell Carcinoma of the Oropharynx, Stage III Squamous Cell Carcinoma of the Paranasal Sinus and Nasal Cavity, Stage III Verrucous Carcinoma of the Larynx, Stage III Verrucous Carcinoma of the Oral Cavity, Stage IIIB Non-small Cell Lung Cancer, Stage IV Adenoid Cystic Carcinoma of the Oral Cavity, Stage IV Basal Cell Carcinoma of the Lip, Stage IV Colon Cancer, Stage IV Esthesioneuroblastoma of the Paranasal Sinus and Nasal Cavity, Stage IV Inverted Papilloma of the Paranasal Sinus and Nasal Cavity, Stage IV Lymphoepithelioma of the Nasopharynx, Stage IV Lymphoepithelioma of the Oropharynx, Stage IV Midline Lethal Granuloma of the Paranasal Sinus and Nasal Cavity, Stage IV Mucoepidermoid Carcinoma of the Oral Cavity, Stage IV Non-small Cell Lung Cancer, Stage IV Pancreatic Cancer, Stage IV Rectal Cancer, Stage IV Renal Cell Cancer, Stage IV Salivary Gland Cancer, Stage IV Squamous Cell Carcinoma of the Hypopharynx, Stage IV Squamous Cell Carcinoma of the Larynx, Stage IV Squamous Cell Carcinoma of the Lip and Oral Cavity, Stage IV Squamous Cell Carcinoma of the Nasopharynx, Stage IV Squamous Cell Carcinoma of the Oropharynx, Stage IV Squamous Cell Carcinoma of the Paranasal Sinus and Nasal Cavity, Stage IV Verrucous Carcinoma of the Larynx, Stage IV Verrucous Carcinoma of the Oral Cavity, Untreated Metastatic Squamous Neck Cancer With Occult Primary
Interventions
erlotinib hydrochloride, cetuximab, bevacizumab, laboratory biomarker analysis
Drug · Biological · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
San Antonio, Texas
Conditions
Lung Cancer
Interventions
carboplatin, cisplatin, docetaxel, gemcitabine, paclitaxel, vinorelbine
Drug
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years and older
Enrollment
204 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2007
U.S. locations
84
States / cities
Mobile, Alabama • Phoenix, Arizona • Tucson, Arizona + 55 more
Conditions
Gastrin-Producing Neuroendocrine Tumor, Lung Carcinoid Tumor, Metastatic Digestive System Neuroendocrine Tumor G1, Pancreatic Glucagonoma, Pancreatic Insulinoma, Pancreatic Polypeptide Tumor, Paraganglioma, Recurrent Digestive System Neuroendocrine Tumor G1, Recurrent Merkel Cell Carcinoma, Recurrent Pancreatic Neuroendocrine Carcinoma, Regional Digestive System Neuroendocrine Tumor G1, Somatostatin-Producing Neuroendocrine Tumor, Stage III Merkel Cell Carcinoma, Stage IV Merkel Cell Carcinoma, Thyroid Gland Medullary Carcinoma
Interventions
Cixutumumab, Everolimus, Laboratory Biomarker Analysis, Octreotide Acetate, Pharmacological Study
Biological · Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2010
U.S. locations
1
States / cities
Houston, Texas
Conditions
Non-Small Cell Lung Cancer, Metastatic Non-small Cell Lung Cancer, Squamous Cell Carcinoma, Advanced NSCLC, Adenosquamous Carcinoma, Adenocarcinomas
Interventions
Tumor-infiltrating Lymphocytes (TIL), Nivolumab, Cyclophosphamide, Fludarabine, Tumor-infiltrating Lymphocyte Therapy, Interleukin-2 (IL2)
Procedure · Drug · Other
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
2
States / cities
Gainesville, Florida • Tampa, Florida
Conditions
Lymphoma, Metastatic Malignant Solid Neoplasm, Metastatic Melanoma, Metastatic Renal Cell Cancer, Recurrent Bladder Carcinoma, Recurrent Classical Hodgkin Lymphoma, Recurrent Head and Neck Squamous Cell Carcinoma, Recurrent Lymphoma, Recurrent Malignant Solid Neoplasm, Recurrent Renal Cell Carcinoma, Stage III Bladder Cancer, Stage III Lymphoma, Stage III Non-Small Cell Lung Cancer AJCC v7, Stage III Renal Cell Cancer, Stage III Skin Melanoma, Stage IIIA Non-Small Cell Lung Cancer AJCC v7, Stage IIIA Skin Melanoma, Stage IIIB Non-Small Cell Lung Cancer AJCC v7, Stage IIIB Skin Melanoma, Stage IIIC Skin Melanoma, Stage IV Bladder Cancer, Stage IV Lymphoma, Stage IV Non-Small Cell Lung Cancer AJCC v7, Stage IV Renal Cell Cancer, Stage IV Skin Melanoma, Stage IVA Bladder Cancer, Stage IVB Bladder Cancer, Unresectable Head and Neck Squamous Cell Carcinoma, Unresectable Solid Neoplasm
Interventions
Enzyme Inhibitor Therapy, Laboratory Biomarker Analysis, Nivolumab, Pembrolizumab
Drug · Other · Biological
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
New Brunswick, New Jersey
Conditions
Anatomic Stage IV Breast Cancer AJCC v8, Clinical Stage IV Gastroesophageal Junction Adenocarcinoma AJCC v8, Clinical Stage IVA Gastroesophageal Junction Adenocarcinoma AJCC v8, Clinical Stage IVB Gastroesophageal Junction Adenocarcinoma AJCC v8, Locally Advanced Malignant Solid Neoplasm, Locally Advanced Melanoma, Locally Advanced Primary Malignant Central Nervous System Neoplasm, Locally Advanced Sarcoma, Metastatic Malignant Solid Neoplasm, Metastatic Melanoma, Metastatic Primary Malignant Central Nervous System Neoplasm, Metastatic Sarcoma, Pathologic Stage IV Gastroesophageal Junction Adenocarcinoma AJCC v8, Pathologic Stage IVA Gastroesophageal Junction Adenocarcinoma AJCC v8, Pathologic Stage IVB Gastroesophageal Junction Adenocarcinoma AJCC v8, Postneoadjuvant Therapy Stage IV Gastroesophageal Junction Adenocarcinoma AJCC v8, Postneoadjuvant Therapy Stage IVA Gastroesophageal Junction Adenocarcinoma AJCC v8, Postneoadjuvant Therapy Stage IVB Gastroesophageal Junction Adenocarcinoma AJCC v8, Prognostic Stage IIIC Breast Cancer AJCC v8, Prognostic Stage IV Breast Cancer AJCC v8, Stage IIIC Colorectal Cancer AJCC v8, Stage IIIC Lung Cancer AJCC v8, Stage IV Colorectal Cancer AJCC v8, Stage IV Lung Cancer AJCC v8, Stage IVA Colorectal Cancer AJCC v8, Stage IVA Lung Cancer AJCC v8, Stage IVB Colorectal Cancer AJCC v8, Stage IVB Lung Cancer AJCC v8, Stage IVC Colorectal Cancer AJCC v8
Interventions
Avapritinib
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Houston, Texas
Conditions
Kidney Cancer, Lung Cancer, Metastatic Cancer, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
sargramostim, flow cytometry, immunoenzyme technique, biopsy, cryosurgery
Biological · Other · Procedure
Lead sponsor
Barbara Ann Karmanos Cancer Institute
Other
Eligibility
18 Years to 120 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Detroit, Michigan