Extensive Stage Lung Small Cell CarcinomaPhase 2/3NCT04402788
Testing the Addition of Radiation Therapy to the Usual Immune Therapy Treatment (Atezolizumab) for Extensive Stage Small Cell Lung Cancer, The RAPTOR Trial
A Phase 2/3 study testing Atezolizumab, Biospecimen Collection and Computed Tomography in people with Extensive Stage Lung Small Cell Carcinoma, run by National Cancer Institute (NCI) at 411 sites in United States.
Trial summary
This phase II/III trial compares the effect of adding radiation therapy to the usual maintenance therapy with atezolizumab versus atezolizumab alone in patients who have already received atezolizumab plus chemotherapy for the treatment of small cell lung cancer that has spread outside of the lung or to other parts of… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Extensive Stage Lung Small Cell Carcinoma
- What is being tested?
- Atezolizumab, Biospecimen Collection and Computed Tomography
- Type of treatment
- Injection or infusion, Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 138 participants
- Where
- 411 sitesUnited States
- Study dates
- 7 Jan 2021to 30 Apr 2027
- Phase
- Phase 2/3
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Any confirmation (cytologic, histologic, or pathologic) of extensive stage small cell lung cancer at any site, either primary or metastases
- Partial response (PR) or stable disease (SD) after 4-6 cycles of etoposide/platinum (E/P) doublet plus atezolizumab by re-staging scans (positron emission tomography [PET]/computed tomography [CT] scan, diagnostic CT scan, magnetic resonance imaging [MRI] optional per treating physician); atezolizumab should continue through randomization. Patients must be randomized within 9 weeks of last dose of etoposide/platinum (if not receiving PCI) or 6 weeks from completion of prophylactic cranial irradiation (PCI)
- NOTE: Patients must have at least 3 cycles of E/P plus atezolizumab. They can have one cycle of induction E/P without concurrent atezolizumab if unable to receive concurrent E/P combined with atezolizumab for all cycles of induction therapy
- Patients must have measurable disease (per Response Evaluation Criteria in Solid Tumors [RECIST]) and 3 or fewer observable liver metastases and no evidence of progressive disease (per RECIST) at time of enrollment
- At time of enrollment after induction E/P chemotherapy and atezolizumab, if there is a pleural effusion, patients will be eligible if thoracentesis is cytologically negative or if pleural fluid is too small a volume to effectively sample by thoracentesis and does not show increased metabolic activity on CT/PET imaging
- Appropriate stage for study entry based on the following diagnostic workup:
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- History/physical examination within 14 days prior to registration;
- Imaging within 42 days prior to registration to include:
- MRI brain with contrast or CT brain with contrast
- CT chest, abdomen and pelvis or whole body PET/CT scan any time after the fourth cycle of chemotherapy and prior to registration
- Eastern Cooperative Oncology Group (ECOG) performance status of 0-2 within 14 days prior to registration
- Absolute neutrophil count (ANC) >= 1,000/cells/mm^3 (within 14 days prior to registration)
- Platelets >= 75,000 cells/mm^3 (within 14 days prior to registration)
- Hemoglobin >= 8 g/dL (within 14 days prior to registration)
- Total bilirubin =< 1.5 x upper limit of normal (ULN) (within 14 days prior to registration)
- Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase [SGOT]) and alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 3.0 x ULN (AST and/or ALT =< 5 ULN for patients with liver involvement) (within 14 days prior to registration)
- Alkaline phosphatase =< 2.5 x ULN (=< 5 ULN for patients with documented liver involvement or bone metastases) (within 14 days prior to registration)
- Adequate renal function = Creatinine clearance >=40 mL/min by the Cockcroft-Gault (C-G) equation: (within 14 days prior to registration)
- Upfront radiation therapy of symptomatic metastatic site is permissible if causing symptoms such as pain or impending fracture
- Patients with brain metastases are eligible after receiving whole brain radiation before enrollment (anytime during induction systemic therapy). Whole brain radiation can be delivered with hippocampal sparing or 3-D conformal technique. Patients with irradiated brain metastases are eligible if they are clinically stable from a neurological standpoint after completing radiotherapy (e.g. not having uncontrolled seizures) and do not require use of steroids above a dose of 10 mg of prednisone daily
- For women of childbearing potential, a negative serum or urine pregnancy test within 14 days prior to registration.
- Note: Women will be considered post-menopausal if they have been amenorrheic for 12 months without an alternative medical cause. The following age-specific requirements apply:
- Women < 50 years of age would be considered post-menopausal if they have been amenorrheic for 12 months or more following cessation of exogenous hormonal treatments and if they have luteinizing hormone and follicle-stimulating hormone levels in the post-menopausal range for the institution or underwent surgical sterilization (bilateral oophorectomy or hysterectomy)
- Women >= 50 years of age would be considered post-menopausal if they have been amenorrheic for 12 months or more following cessation of all exogenous hormonal treatments, had radiation-induced menopause with last menses > 1 year ago, had chemotherapy-induced menopause with last menses > 1 year ago, or underwent surgical sterilization (bilateral oophorectomy, bilateral salpingectomy or hysterectomy)
- Patients positive for human immunodeficiency virus (HIV) on effective anti-retroviral therapy with undetectable viral load within 6 months and a stable regimen of highly active anti-retroviral (HAART) HIV-positive patients must have no requirement for concurrent antibiotics or antifungal agents for the prevention of opportunistic infections
- The patient or a legally authorized representative must provide study-specific informed consent prior to study entry
Who cannot join
- Metastatic disease invading the liver (> 3 metastases), heart or > 10 metastatic sites detectable after induction systemic therapy. Each visible bone metastasis on radiographic scan counts as one site
- Patients with a concurrent malignancy whose natural history or treatment has the potential to interfere with the safety or efficacy assessment of the investigational regimen with atezolizumab or radiation
- Prior radiotherapy in the thorax that would result in overlapping RT fields, unless the overlapping fields meet acceptable dose constraints for normal tissue
- Active autoimmune disease, including, but not limited to: systemic lupus erythematosus; rheumatoid arthritis; inflammatory bowel disease (e.g. Crohn's, ulcerative colitis); vascular thrombosis associated with antiphospholipid syndrome; Wegener's granulomatosis; Sjogren's syndrome; Guillain-Barre syndrome; multiple sclerosis; vasculitis; or glomerulonephritis.
- If the autoimmune disease is not active for over 3 years and the patient is not receiving immunosuppressive treatment such as methotrexate or steroids above a dose equivalent to 10 mg prednisone daily, the patient is eligible.
- Patients with a history of autoimmune hypothyroidism on a stable dose of thyroid replacement hormone are eligible
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- Patients with controlled type 1 diabetes mellitus on a stable insulin regimen are eligible
- Patients with eczema, psoriasis, lichen simplex chronicus or vitiligo with dermatologic manifestations are excluded only if they have active disease with acute exacerbation and on immunosuppressive medications within the 12 months prior to enrollment. They are eligible otherwise.
- Severe, active co-morbidity defined as follows:
- Any other diseases, metabolic dysfunction, physical examination finding, or clinical laboratory finding giving reasonable suspicion of a disease or condition that contraindicates the use of an investigational drug or that may affect the interpretation of the results or render the patient at high risk from treatment complications;
- Active tuberculosis;
- Known clinically significant liver disease, including active viral, alcoholic, or other hepatitis; cirrhosis; fatty liver; and inherited liver disease
- Patients with past or resolved hepatitis B infection (defined as having a negative hepatitis B surface antigen [HBsAg] test and a positive anti-HBc [antibody to hepatitis B core antigen] antibody test) are eligible
- Patients positive for hepatitis C virus (HCV) antibody are eligible only if polymerase chain reaction (PCR) is negative for HCV ribonucleic acid (RNA). (The HCV RNA test must be performed for patients who have a positive HCV antibody test)
- Known immunosuppressive disease, for example history of bone marrow transplant or chronic lymphocytic leukemia (CLL);
- Chronic obstructive pulmonary disease (COPD) requiring chronic oral steroid therapy of > 10 mg prednisone daily or equivalent at the time of registration. Inhaled corticosteroids are not exclusionary;
- Unstable angina and/or congestive heart failure requiring hospitalization within the last 3 months;
- History of recent myocardial infarction within 6 months prior to registration.
- Clinically significant interstitial lung disease
- Pregnancy: Administration of atezolizumab may have an adverse effect on pregnancy and poses a risk to the human fetus, including embryo-lethality. Women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, for the duration of study treatment, and for 5 months (150 days) after the last dose of study agent. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately
- Women who are breastfeeding and unwilling to discontinue
- History of allogeneic organ transplant
- Patients who have had immunotherapy-induced pneumonitis
Trial locations and contacts
411 sites in 1 country.
300 sites in 1 country
United States300 sites
Hawaii Cancer Care - Westridge
‘Aiea, Hawaii, 96701
Pali Momi Medical Center
‘Aiea, Hawaii, 96701
Cleveland Clinic Akron General
Akron, Ohio, 44307
Atrium Health Stanly/LCI-Albemarle
Albemarle, North Carolina, 28002
Lovelace Medical Center-Saint Joseph Square
Albuquerque, New Mexico, 87102
University of New Mexico Cancer Center
Albuquerque, New Mexico, 87106
Lovelace Radiation Oncology
Albuquerque, New Mexico, 87109
Lehigh Valley Hospital-Cedar Crest
Allentown, Pennsylvania, 18103
Saint Luke's Cancer Center - Allentown
Allentown, Pennsylvania, 18104
Katmai Oncology Group
Anchorage, Alaska, 99508
UI Health Care Mission Cancer and Blood - Ankeny Clinic
Ankeny, Iowa, 50023
Aspirus Cancer Care-Antigo-Volm Cancer Center
Antigo, Wisconsin, 54409
Grady Health System
Atlanta, Georgia, 30303
Emory University Hospital Midtown
Atlanta, Georgia, 30308
Emory University Hospital/Winship Cancer Institute
Atlanta, Georgia, 30322
Emory Saint Joseph's Hospital
Atlanta, Georgia, 30342
Mount Sinai Comprehensive Cancer Center at Aventura
Aventura, Florida, 33180
University of Maryland/Greenebaum Cancer Center
Baltimore, Maryland, 21201
MaineHealth Coastal Cancer Treatment Center
Bath, Maine, 04530
UPMC-Heritage Valley Health System Beaver
Beaver, Pennsylvania, 15009
UM Upper Chesapeake Medical Center
Bel Air, Maryland, 21014
PeaceHealth Saint Joseph Medical Center
Bellingham, Washington, 98225
Sanford Joe Lueken Cancer Center
Bemidji, Minnesota, 56601
Central Vermont Medical Center/National Life Cancer Treatment
Berlin Corners, Vermont, 05602
Saint Luke's University Hospital-Bethlehem Campus
Bethlehem, Pennsylvania, 18015
Lehigh Valley Hospital - Muhlenberg
Bethlehem, Pennsylvania, 18017
University of Alabama at Birmingham Cancer Center
Birmingham, Alabama, 35233
Sanford Bismarck Medical Center
Bismarck, North Dakota, 58501
Illinois CancerCare-Bloomington
Bloomington, Illinois, 61704
Saint Joseph's/Candler - Bluffton Campus
Bluffton, South Carolina, 29910
Saint Alphonsus Cancer Care Center-Boise
Boise, Idaho, 83706
Saint Luke's Cancer Institute - Boise
Boise, Idaho, 83712
Boston Medical Center
Boston, Massachusetts, 02118
Bozeman Health Deaconess Hospital
Bozeman, Montana, 59715
Trinity Health IHA Medical Group Hematology Oncology - Brighton
Brighton, Michigan, 48114
Trinity Health Medical Center - Brighton
Brighton, Michigan, 48114
Crozer-Keystone Regional Cancer Center at Broomall
Broomall, Pennsylvania, 19008
Bryn Mawr Hospital
Bryn Mawr, Pennsylvania, 19010
University of Vermont Medical Center
Burlington, Vermont, 05401
University of Vermont and State Agricultural College
Burlington, Vermont, 05405
Saint Alphonsus Cancer Care Center-Caldwell
Caldwell, Idaho, 83605
Cooper Hospital University Medical Center
Camden, New Jersey, 08103
Hematology Oncology Associates of CNY at Camillus
Camillus, New York, 13031
Sands Cancer Center
Canandaigua, New York, 14424
Illinois CancerCare-Canton
Canton, Illinois, 61520
Trinity Health IHA Medical Group Hematology Oncology - Canton
Canton, Michigan, 48188
Trinity Health Medical Center - Canton
Canton, Michigan, 48188
Aultman Health Foundation
Canton, Ohio, 44710
Saint Francis Medical Center
Cape Girardeau, Missouri, 63703
Carlisle Regional Cancer Center
Carlisle, Pennsylvania, 17015
Illinois CancerCare-Carthage
Carthage, Illinois, 62321
Physicians' Clinic of Iowa PC
Cedar Rapids, Iowa, 52402
Miami Valley Hospital South
Centerville, Ohio, 45459
Centralia Oncology Clinic
Centralia, Illinois, 62801
Christiana Care Health System-Concord Health Center
Chadds Ford, Pennsylvania, 19317
Chambersburg Hospital
Chambersburg, Pennsylvania, 17201
Medical University of South Carolina
Charleston, South Carolina, 29425
Vandalia Health/CAMC Institute for Academic Medicine
Charleston, West Virginia, 25304
Carolinas Medical Center/Levine Cancer Institute
Charlotte, North Carolina, 28203
Atrium Health Pineville/LCI-Pineville
Charlotte, North Carolina, 28210
Levine Cancer Institute-SouthPark
Charlotte, North Carolina, 28211
Atrium Health University City/LCI-University
Charlotte, North Carolina, 28262
Levine Cancer Institute-Ballantyne
Charlotte, North Carolina, 28277
Chelsea Hospital
Chelsea, Michigan, 48118
Trinity Health IHA Medical Group Hematology Oncology - Chelsea Hospital
Chelsea, Michigan, 48118
University of Illinois
Chicago, Illinois, 60612
University of Cincinnati Cancer Center-UC Medical Center
Cincinnati, Ohio, 45219
Clackamas Radiation Oncology Center
Clackamas, Oregon, 97015
Providence Cancer Institute Clackamas Clinic
Clackamas, Oregon, 97015
McLaren Cancer Institute-Clarkston
Clarkston, Michigan, 48346
MetroHealth Medical Center
Cleveland, Ohio, 44109
Cleveland Clinic Cancer Center/Fairview Hospital
Cleveland, Ohio, 44111
Cleveland Clinic Foundation
Cleveland, Ohio, 44195
Mercy Cancer Center-West Lakes
Clive, Iowa, 50325
UI Health Care Mission Cancer and Blood - West Des Moines Clinic
Clive, Iowa, 50325
Penrose-Saint Francis Healthcare
Colorado Springs, Colorado, 80907
Rocky Mountain Cancer Centers-Penrose
Colorado Springs, Colorado, 80907
UCHealth Memorial Hospital Central
Colorado Springs, Colorado, 80909
Memorial Hospital North
Colorado Springs, Colorado, 80920
Central Maryland Radiation Oncology in Howard County
Columbia, Maryland, 21044
MU Health - University Hospital/Ellis Fischel Cancer Center
Columbia, Missouri, 65212
Ohio State University Comprehensive Cancer Center
Columbus, Ohio, 43210
Mount Carmel East Hospital
Columbus, Ohio, 43213
The Mark H Zangmeister Center
Columbus, Ohio, 43219
Mount Carmel Health Center West
Columbus, Ohio, 43222
Atrium Health Cabarrus/LCI-Concord
Concord, North Carolina, 28025
UT MD Anderson - The Woodlands
Conroe, Texas, 77384
Mercy Hospital
Coon Rapids, Minnesota, 55433
UM Sylvester Comprehensive Cancer Center at Coral Gables
Coral Gables, Florida, 33146
Heartland Oncology and Hematology LLP
Council Bluffs, Iowa, 51503
Methodist Jennie Edmundson Hospital
Council Bluffs, Iowa, 51503
Greater Regional Medical Center
Creston, Iowa, 50801
Northwest Cancer Center - Crown Point
Crown Point, Indiana, 46307
Carle at The Riverfront
Danville, Illinois, 61832
Geisinger Medical Center
Danville, Pennsylvania, 17822
Miami Valley Hospital
Dayton, Ohio, 45409
Premier Blood and Cancer Center
Dayton, Ohio, 45409
Dayton Physician LLC - Englewood
Dayton, Ohio, 45415
Miami Valley Hospital North
Dayton, Ohio, 45415
Cancer Care Specialists of Illinois - Decatur
Decatur, Illinois, 62526
Decatur Memorial Hospital
Decatur, Illinois, 62526
UM Sylvester Comprehensive Cancer Center at Deerfield Beach
Deerfield Beach, Florida, 33442
Iowa Methodist Medical Center
Des Moines, Iowa, 50309
UI Health Care Mission Cancer and Blood - Des Moines Clinic
Des Moines, Iowa, 50309
Broadlawns Medical Center
Des Moines, Iowa, 50314
Mercy Medical Center - Des Moines
Des Moines, Iowa, 50314
UI Health Care Mission Cancer and Blood - Laurel Clinic
Des Moines, Iowa, 50314
Iowa Lutheran Hospital
Des Moines, Iowa, 50316
Wayne State University/Karmanos Cancer Institute
Detroit, Michigan, 48201
Geisinger Cancer Center Dickson City
Dickson City, Pennsylvania, 18519
Saint Luke's Hospital of Duluth
Duluth, Minnesota, 55805
Northwest Oncology LLC
Dyer, Indiana, 46311
Hematology Oncology Associates of Central New York-East Syracuse
East Syracuse, New York, 13057
Saint Luke's Hospital-Anderson Campus
Easton, Pennsylvania, 18045
Marshfield Medical Center-EC Cancer Center
Eau Claire, Wisconsin, 54701
Carle Physician Group-Effingham
Effingham, Illinois, 62401
Crossroads Cancer Center
Effingham, Illinois, 62401
Elmhurst Memorial Hospital
Elmhurst, Illinois, 60126
Englewood Hospital and Medical Center
Englewood, New Jersey, 07631
Ephrata Cancer Center
Ephrata, Pennsylvania, 17522
UPMC Hillman Cancer Center Erie
Erie, Pennsylvania, 16505
Saint Vincent Hospital
Erie, Pennsylvania, 16544
Illinois CancerCare-Eureka
Eureka, Illinois, 61530
Inova Schar Cancer Institute
Fairfax, Virginia, 22031
Smilow Cancer Hospital Care Center-Fairfield
Fairfield, Connecticut, 06824
Sanford Broadway Medical Center
Fargo, North Dakota, 58122
Sanford Roger Maris Cancer Center
Fargo, North Dakota, 58122
Parkland Health Center - Farmington
Farmington, Missouri, 63640
Farmington Health Center
Farmington, Utah, 84025
Weisberg Cancer Treatment Center
Farmington Hills, Michigan, 48334
UPMC Cancer Center at UPMC Horizon
Farrell, Pennsylvania, 16121
Genesys Hurley Cancer Institute
Flint, Michigan, 48503
Hurley Medical Center
Flint, Michigan, 48503
McLaren Cancer Institute-Flint
Flint, Michigan, 48532
Texas Oncology-Flower Mound
Flower Mound, Texas, 75028
Levine Cancer Institute - Rutherford
Forest City, North Carolina, 28043
Poudre Valley Hospital
Fort Collins, Colorado, 80524
Cancer Care and Hematology-Fort Collins
Fort Collins, Colorado, 80528
Texas Oncology - Fort Worth Cancer Center
Fort Worth, Texas, 76104
Atrium Medical Center-Middletown Regional Hospital
Franklin, Ohio, 45005-1066
Unity Hospital
Fridley, Minnesota, 55432
Saint Luke's Cancer Institute - Fruitland
Fruitland, Idaho, 83619
Gibbs Cancer Center-Gaffney
Gaffney, South Carolina, 29341
Illinois CancerCare-Galesburg
Galesburg, Illinois, 61401
Western Illinois Cancer Treatment Center
Galesburg, Illinois, 61401
Levine Cancer Institute-Gaston
Gastonia, North Carolina, 28054
Adams Cancer Center
Gettysburg, Pennsylvania, 17325
UM Baltimore Washington Medical Center/Tate Cancer Center
Glen Burnie, Maryland, 21061
Crozer Regional Cancer Center at Brinton Lake
Glen Mills, Pennsylvania, 19342
Benefis Sletten Cancer Institute
Great Falls, Montana, 59405
UCHealth Greeley Hospital
Greeley, Colorado, 80631
Saint Vincent Hospital Cancer Center Green Bay
Green Bay, Wisconsin, 54301
UPMC Cancer Centers - Arnold Palmer Pavilion
Greensburg, Pennsylvania, 15601
Miami Valley Cancer Care and Infusion
Greenville, Ohio, 45331
UPMC Hillman Cancer Center in Greenville/UPMC Horizon
Greenville, Pennsylvania, 16125
Saint Francis Hospital
Greenville, South Carolina, 29601
Prisma Health Cancer Institute - Faris
Greenville, South Carolina, 29605
Saint Francis Cancer Center
Greenville, South Carolina, 29607
Prisma Health Cancer Institute - Eastside
Greenville, South Carolina, 29615
Smilow Cancer Hospital Care Center at Greenwich
Greenwich, Connecticut, 06830
Self Regional Healthcare
Greenwood, South Carolina, 29646
Prisma Health Cancer Institute - Greer
Greer, South Carolina, 29650
Gibbs Cancer Center-Pelham
Greer, South Carolina, 29651
Legacy Mount Hood Medical Center
Gresham, Oregon, 97030
Smilow Cancer Hospital Care Center - Guilford
Guilford, Connecticut, 06437
Smilow Cancer Hospital-Hamden Care Center
Hamden, Connecticut, 06518
UPMC Pinnacle Cancer Center/Community Osteopathic Campus
Harrisburg, Pennsylvania, 17109
Margaret R Pardee Memorial Hospital
Hendersonville, North Carolina, 28791
Penn State Milton S Hershey Medical Center
Hershey, Pennsylvania, 17033-0850
Northwest Cancer Center - Hobart
Hobart, Indiana, 46342
Saint Mary Medical Center
Hobart, Indiana, 46342
Hawaii Cancer Care Inc - Waterfront Plaza
Honolulu, Hawaii, 96813
Queen's Cancer Cenrer - POB I
Honolulu, Hawaii, 96813
Queen's Medical Center
Honolulu, Hawaii, 96813
Straub Clinic and Hospital
Honolulu, Hawaii, 96813
University of Hawaii Cancer Center
Honolulu, Hawaii, 96813
Hawaii Cancer Care Inc-Liliha
Honolulu, Hawaii, 96817
Queen's Cancer Center - Kuakini
Honolulu, Hawaii, 96817
The Cancer Center of Hawaii-Liliha
Honolulu, Hawaii, 96817
Kapiolani Medical Center for Women and Children
Honolulu, Hawaii, 96826
UT MD Anderson Cancer Center
Houston, Texas, 77030
UT MD Anderson - West Houston
Houston, Texas, 77079
Cleveland Clinic Cancer Center Independence
Independence, Ohio, 44131
IRMC Cancer Center
Indiana, Pennsylvania, 15701
UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care
Irvine, California, 92612
Jefferson Hospital
Jefferson Hills, Pennsylvania, 15025
NEA Baptist Memorial Hospital and Fowler Family Cancer Center - Jonesboro
Jonesboro, Arkansas, 72401
Bronson Methodist Hospital
Kalamazoo, Michigan, 49007
West Michigan Cancer Center
Kalamazoo, Michigan, 49007
Beacon Kalamazoo
Kalamazoo, Michigan, 49048
Illinois CancerCare-Kewanee Clinic
Kewanee, Illinois, 61443
Gundersen Lutheran Medical Center
La Crosse, Wisconsin, 54601
Karmanos Cancer Institute at McLaren Greater Lansing
Lansing, Michigan, 48910
University of Michigan Health - Sparrow Lansing
Lansing, Michigan, 48912
McLaren Cancer Institute-Lapeer Region
Lapeer, Michigan, 48446
Cancer Centers of Southwest Oklahoma Research
Lawton, Oklahoma, 73505
UT MD Anderson - League City
League City, Texas, 77573
Dartmouth Hitchcock Medical Center/Dartmouth Cancer Center
Lebanon, New Hampshire, 03756
Sechler Family Cancer Center
Lebanon, Pennsylvania, 17042
Geisinger Medical Oncology-Lewisburg
Lewisburg, Pennsylvania, 17837
CommonSpirit Saint Joseph Medical Center - East Lexington
Lexington, Kentucky, 40509
Wilcox Memorial Hospital and Kauai Medical Clinic
Lihue, Hawaii, 96766
Atrium Health Lincoln/LCI-Lincolnton
Lincolnton, North Carolina, 28092
Trinity Health Saint Mary Mercy Livonia Hospital
Livonia, Michigan, 48154
Norton Hospital Pavilion and Medical Campus
Louisville, Kentucky, 40202
The James Graham Brown Cancer Center at University of Louisville
Louisville, Kentucky, 40202
Baptist Health Louisville
Louisville, Kentucky, 40207
Norton Audubon Hospital and Medical Campus
Louisville, Kentucky, 40217
Norton Brownsboro Hospital and Medical Campus
Louisville, Kentucky, 40241
UofL Health Medical Center Northeast
Louisville, Kentucky, 40245
Medical Center of the Rockies
Loveland, Colorado, 80538
Lowell General Hospital
Lowell, Massachusetts, 01854
Illinois CancerCare-Macomb
Macomb, Illinois, 61455
Cleveland Clinic Cancer Center Mansfield
Mansfield, Ohio, 44906
Saint John's Hospital - Healtheast
Maplewood, Minnesota, 55109
Marshfield Medical Center-Marshfield
Marshfield, Wisconsin, 54449
Levine Cancer Institute - Union West
Matthews, North Carolina, 28104
Carle Physician Group-Mattoon/Charleston
Mattoon, Illinois, 61938
Hillcrest Hospital Cancer Center
Mayfield Heights, Ohio, 44124
Texas Oncology-McKinney
McKinney, Texas, 75071
UPMC Hillman Cancer Center at Rocco And Nancy Ortenzio Cancer Pavilion
Mechanicsburg, Pennsylvania, 17050
Riddle Memorial Hospital
Media, Pennsylvania, 19063
Baptist Memorial Hospital and Cancer Center-Memphis
Memphis, Tennessee, 38120
Froedtert Menomonee Falls Hospital
Menomonee Falls, Wisconsin, 53051
Saint Luke's Cancer Institute - Meridian
Meridian, Idaho, 83642
University of Miami Miller School of Medicine-Sylvester Cancer Center
Miami, Florida, 33136
Mount Sinai Medical Center
Miami Beach, Florida, 33140
MyMichigan Medical Center Midland
Midland, Michigan, 48670
Beebe South Coastal Health Campus
Millville, Delaware, 19967
Medical College of Wisconsin
Milwaukee, Wisconsin, 53226
Abbott-Northwestern Hospital
Minneapolis, Minnesota, 55407
Marshfield Medical Center - Minocqua
Minocqua, Wisconsin, 54548
Atrium Health Union/LCI-Union
Monroe, North Carolina, 28112
Forbes Hospital
Monroeville, Pennsylvania, 15146
UPMC Cancer Center - Monroeville
Monroeville, Pennsylvania, 15146
UPMC Hillman Cancer Center - Monroeville
Monroeville, Pennsylvania, 15146
West Virginia University Healthcare
Morgantown, West Virginia, 26506
McLaren Cancer Institute-Macomb
Mount Clemens, Michigan, 48043
The Community Hospital
Munster, Indiana, 46321
Women's Diagnostic Center - Munster
Munster, Indiana, 46321
Saint Alphonsus Cancer Care Center-Nampa
Nampa, Idaho, 83687
Saint Luke's Cancer Institute - Nampa
Nampa, Idaho, 83687
Edward Hospital/Cancer Center
Naperville, Illinois, 60540
Allegheny Valley Hospital
Natrona Heights, Pennsylvania, 15065
Baptist Health Floyd
New Albany, Indiana, 47150
UPMC Hillman Cancer Center - New Castle
New Castle, Pennsylvania, 16105
Yale University
New Haven, Connecticut, 06520
Mount Sinai Chelsea
New York, New York, 10011
Mount Sinai West
New York, New York, 10019
Mount Sinai Hospital
New York, New York, 10029
Helen F Graham Cancer Center
Newark, Delaware, 19713
Medical Oncology Hematology Consultants PA
Newark, Delaware, 19713
Providence Newberg Medical Center
Newberg, Oregon, 97132
CTCA at Southeastern Regional Medical Center
Newnan, Georgia, 30265
Yale-New Haven Hospital North Haven Medical Center
North Haven, Connecticut, 06473
Henry Ford Health Providence Novi Hospital
Novi, Michigan, 48374
Cancer Care Center of O'Fallon
O'Fallon, Illinois, 62269
HSHS Saint Elizabeth's Hospital
O'Fallon, Illinois, 62269
Drexel Town Square Health Center
Oak Creek, Wisconsin, 53154
University of Oklahoma Health Sciences Center
Oklahoma City, Oklahoma, 73104
Mercy Hospital Oklahoma City
Oklahoma City, Oklahoma, 73120
Nebraska Cancer Specialists/Oncology Hematology West PC - MECC
Omaha, Nebraska, 68114
Nebraska Methodist Hospital
Omaha, Nebraska, 68114
University of Nebraska Medical Center
Omaha, Nebraska, 68198
UC Irvine Health/Chao Family Comprehensive Cancer Center
Orange, California, 92868
Orlando Health Cancer Institute
Orlando, Florida, 32806
Illinois CancerCare-Ottawa Clinic
Ottawa, Illinois, 61350
Palo Alto Medical Foundation Health Care
Palo Alto, California, 94301
Paoli Memorial Hospital
Paoli, Pennsylvania, 19301
Illinois CancerCare-Pekin
Pekin, Illinois, 61554
Capital Health Medical Center-Hopewell
Pennington, New Jersey, 08534
Illinois CancerCare-Peoria
Peoria, Illinois, 61615
Methodist Medical Center of Illinois
Peoria, Illinois, 61636
OSF Saint Francis Medical Center
Peoria, Illinois, 61637
Illinois CancerCare-Peru
Peru, Illinois, 61354
McLaren Cancer Institute-Northern Michigan
Petoskey, Michigan, 49770
University of Pennsylvania/Abramson Cancer Center
Philadelphia, Pennsylvania, 19104
Thomas Jefferson University Hospital
Philadelphia, Pennsylvania, 19107
Jefferson Torresdale Hospital
Philadelphia, Pennsylvania, 19114
Cancer Center at Saint Joseph's
Phoenix, Arizona, 85004
Mayo Clinic Hospital in Arizona
Phoenix, Arizona, 85054
Avera Cancer Institute at Pierre
Pierre, South Dakota, 57501
Allegheny General Hospital
Pittsburgh, Pennsylvania, 15212
UPMC-Saint Margaret
Pittsburgh, Pennsylvania, 15215
West Penn Hospital
Pittsburgh, Pennsylvania, 15224
UPMC Hillman Cancer Center
Pittsburgh, Pennsylvania, 15232
UPMC-Shadyside Hospital
Pittsburgh, Pennsylvania, 15232
UPMC-Passavant Hospital
Pittsburgh, Pennsylvania, 15237
UPMC-Saint Clair Hospital Cancer Center
Pittsburgh, Pennsylvania, 15243
Edward Hospital/Cancer Center?Plainfield
Plainfield, Illinois, 60585
Texas Oncology-Plano West
Plano, Texas, 75093
McLaren-Port Huron
Port Huron, Michigan, 48060
MaineHealth Maine Medical Center - Portland
Portland, Maine, 04102
Legacy Good Samaritan Hospital and Medical Center
Portland, Oregon, 97210
Providence Portland Medical Center
Portland, Oregon, 97213
Providence Saint Vincent Medical Center
Portland, Oregon, 97225
Illinois CancerCare-Princeton
Princeton, Illinois, 61356
Saint Luke's Hospital - Upper Bucks Campus
Quakertown, Pennsylvania, 18951
Beebe Health Campus
Rehoboth Beach, Delaware, 19971
Renown Regional Medical Center
Reno, Nevada, 89502
About this study
Official title: RAndomized Phase II/III Trial of Consolidation Radiation + Immunotherapy for ES-SCLC: RAPTOR Trial
This phase II/III trial compares the effect of adding radiation therapy to the usual maintenance therapy with atezolizumab versus atezolizumab alone in patients who have already received atezolizumab plus chemotherapy for the treatment of small cell lung cancer that has spread outside of the lung or to other parts of the body (extensive stage). Immunotherapy with monoclonal antibodies, such as atezolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Giving radiation therapy in addition to atezolizumab may extend the time without extensive small cell lung cancer growing or spreading compared to atezolizumab alone.
Read the detailed description
PRIMARY OBJECTIVES:
- To compare investigator-assessed progression free survival (PFS) between atezolizumab plus radiotherapy and atezolizumab alone. (Phase II) II. To compare overall survival (OS) between atezolizumab plus radiotherapy and atezolizumab alone. (Phase III)
SECONDARY OBJECTIVES:
- To assess the toxicity between the atezolizumab plus radiotherapy arm and the atezolizumab arm.
II. To assess the impact of adding radiotherapy on PFS and OS in patients with 1-3 visible tumors and > 3 visible tumors.
III. To assess the impact of adding radiotherapy on PFS and OS in patients receiving consolidation radiotherapy to all visible disease ("complete consolidation") and patients who do not receive consolidation radiation to all visible disease ("incomplete consolidation").
EXPLORATORY OBJECTIVE:
- To assess the association between pre-treatment tumor burden (determined by central radiographic assessment, using both tumor number and tumor volume), and PFS and OS benefit.
OUTLINE: Patients are randomized to 1 of 2 arms.
ARM I: Patients receive atezolizumab intravenously (IV) over 30 minutes +/- 10 minutes on day 1. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity.
ARM II: Patients receive atezolizumab IV over 30 minutes +/- 10 minutes. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients undergo radiation therapy once daily (QD) on days 1-5 during weeks 1-5 only.
Patients undergo positron emission tomography and computed tomography (PET/CT) scan, computed tomography (CT), and magnetic resonance imaging (MRI) throughout the trial. Patients also undergo blood and tissue collection throughout the trial.
After completion of study treatment, patients are followed up every 3 months for 2 years, every 6 months for 3 years, and then annually thereafter.
- Being tested
- Atezolizumab, Biospecimen Collection, Computed Tomography, Magnetic Resonance Imaging, Positron Emission Tomography
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
AtezolizumabDrug
Also called MPDL 3280A, MPDL 328OA, MPDL-3280A, MPDL3280A
Given IV
Biospecimen CollectionProcedure or surgery
Also called Biological Sample Collection, Biospecimen Collected, Sample Collection, Specimen Collection
Undergo blood and tissue collection
Computed TomographyProcedure or surgery
Also called CAT, CAT Scan, Computed Axial Tomography, Computerized Axial Tomography
Undergo CT
Magnetic Resonance ImagingProcedure or surgery
Also called Magnetic Resonance, Magnetic Resonance Imaging (MRI), Magnetic resonance imaging (procedure), Magnetic Resonance Imaging Scan
Undergo MRI
Positron Emission TomographyProcedure or surgery
Also called Medical Imaging, Positron Emission Tomography, PET, PET Scan, Positron emission tomography (procedure)
Undergo PET
Radiation TherapyRadiation
Also called Cancer Radiotherapy, Energy Type, ENERGY_TYPE, Irradiate
Undergo radiation therapy
| Study group | Role | What they receive |
|---|---|---|
| Arm I (atezolizumab) | Active comparator | Patients receive atezolizumab IV over 30 minutes +/- 10 minutes on day 1. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients undergo PET/CT scan, CT, and MRI throughout the trial. Patients also undergo blood and tissue collection throughout the trial. Receives: Drug: Atezolizumab; Procedure: Biospecimen Collection; Procedure: Computed Tomography; Procedure: Magnetic Resonance Imaging; Procedure: Positron Emission Tomography |
| Arm II (atezolizumab, radiation therapy) | Experimental | Patients receive atezolizumab IV over 30 minutes +/- 10 minutes on day 1. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients undergo radiation therapy QD on days 1-5 during weeks 1-5 only. Patients undergo PET/CT scan, CT, and MRI throughout the trial. Patients also undergo blood and tissue collection throughout the trial. Receives: Drug: Atezolizumab; Procedure: Biospecimen Collection; Procedure: Computed Tomography; Procedure: Magnetic Resonance Imaging; Procedure: Positron Emission Tomography; Radiation: Radiation Therapy |
What is being measured
The primary outcome is the main question the study is designed to answer.
Progression-free survival (PFS) (Phase II)
Will compare the distributions of PFS between treatment arms using a one-sided stratified log-rank test in all randomized eligible patients. The rates at various timepoints (e.g., every 6 months after randomization) and medians of PFS for each arm will be estimated using the Kaplan-Meier method. The associated 95% confidence interval (CI) will be calculated using Greenwood's formula and based on a log-log transformation applied on the survival function. Results from an unstratified analysis will also be provided.
Measured: From randomization to any documented progression or death due to any cause, whichever occurs first, assessed up to 6 years
Overall survival (OS) (Phase III)
Will compare arm I to arm 2 based on OS using a stratified log-rank test. Hazard ratios will be estimated using a stratified Cox regression model. Event rates over time will be estimated within each treatment group using the Kaplan-Meier method.
Measured: From randomization to the date of death due to any cause, assessed up to 6 years
Secondary outcomes (6)
Incidence of adverse events
For each patient, the maximum severity reported for both immune mediated and non-immune mediated adverse events will be used in the summaries. Adverse events will be summarized regardless of relationship to protocol treatment as assessed by the investigator. All adverse events, adverse events leading to withdrawal, interruption or modification of protocol treatment, grade >= 3 adverse events, and serious adverse events will be summarized. Deaths and cause of death will be summarized. The rate of treatment-related adverse events using National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE, version [v.]5.0) will be reported with the frequency and severity (e.g., type, grade, and attribution) by arm, the analysis will be performed at the time of both phase II and phase III (if applicable) primary endpoint analyses. All adverse events will be classified as either immune or non-immune mediated.
Measured: Up to 6 years
PFS (Phase III)
Assessed per Response Evaluation Criteria in Solid Tumors (RECIST). Will compare the distributions of PFS between treatment arms using a one-sided stratified log-rank test in all randomized eligible patients at 0.025 level. The rates at various timepoints (e.g., every 6 months after randomization) and medians of PFS for each arm will be estimated using the Kaplan-Meier method. The associated 95% CI will be calculated using Greenwood's formula and based on a log-log transformation applied on the survival function. If one stratum has less than 10 events, the stratification factor which contains the level with the smallest number of patients will be removed from the stratified analyses.
Measured: Up to 6 years
PFS in patients with 1-3 distinct visible tumors and > 3 distinct visible tumors
Will be similarly summarized and compared between experimental and control. The interaction between the treatment groups and tumor number groups will also be explored in Cox regression model.
Measured: Up to 6 years
OS in patients with 1-3 distinct visible tumors and > 3 distinct visible tumors
Will be similarly summarized and compared between experimental and control. The interaction between the treatment groups and tumor number groups will also be explored in Cox regression model.
Measured: Up to 6 years
PFS in patients receiving consolidation radiotherapy to all visible disease and patients who do not receive consolidation radiotherapy to all visible disease
Measured: Up to 6 years
OS in patients receiving consolidation radiotherapy to all visible disease and patients who do not receive consolidation radiotherapy to all visible disease
Measured: Up to 6 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 May 2020
- Study start7 Jan 2021
- Primary completion30 Apr 2027 (estimated)
- Study completion30 Apr 2027 (estimated)
Why it stopped: Scheduled Interim Monitoring
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Extensive Stage Lung Small Cell CarcinomaStudies of the same condition, open and under way.
- More trials run by National Cancer Institute (NCI)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2/3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 138 participants (estimated)
Sponsor and investigators
- Lead sponsor
- National Cancer Institute (NCI)
- Sponsor type
- US National Institutes of Health
- Collaborators
- NRG Oncology
- Responsible party
- Sponsor
- Investigators
- Quynh-Nhu Nguyen, Principal investigator, NRG Oncology
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04402788
- Sponsor's protocol ID
- NCI-2020-03472
- Other IDs
- NCI-2020-03472, NRG-LU007, NRG-LU007, U10CA180868
- Status last verified
- Sep 2026
- First submitted
- 22 May 2020
- Last updated
- 29 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: NCI is committed to sharing data in accordance with NIH policy. For more details on how clinical trial data is shared, access the link to the NIH data sharing policy page.
Publications
Ganti AKP, Loo BW Jr, Badiyan S, Bassetti M, Bestvina C, Chiang A, Choudhury N, D'Avella CA, Daly M, Dowlati A, Edelman M, Florsheim C, Gold KA, Goldman JW, Grecula JC, Hann C, Khalil M, Lee R, Malhotra J, Merritt RE, Mohindra N, Molina JR, Moran C, Mulvey C, Osmundson EC, Patel S, Patil T, Pokharel S, Puri S, Qin A, Sands J, Shields M, Tailor TD, Waqar SN, Cassara CJ, Ramakrishnan S. NCCN Guidelines(R) Insights: Small Cell Lung Cancer, Version 2.2026. J Natl Compr Canc Netw. 2026 Jan;24(1):e260002. doi: 10.6004/jnccn.2026.0002.
PubMed 41671459
Study at a glance
From the registry record, last updated by the sponsor on 29 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- RAndomized Phase II/III Trial of Consolidation Radiation + Immunotherapy for ES-SCLC: RAPTOR Trial
- ClinicalTrials.gov ID
- NCT04402788
- Acronym / sponsor ID
- NCI-2020-03472
- Phase
- Phase 2/3
- Study type
- Interventional
- Recruitment status
- SuspendedReason stopped: Scheduled Interim Monitoring
- Enrolment
- 138 participants (estimated)
- Lead sponsor
- National Cancer Institute (NCI)US National Institutes of Health
- Collaborators
- NRG Oncology
- Study start
- 7 Jan 2021 (actual)
- Primary completion
- 30 Apr 2027 (estimated)
- Study completion
- 30 Apr 2027 (estimated)
- First posted
- 27 May 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This phase II/III trial compares the effect of adding radiation therapy to the usual maintenance therapy with atezolizumab versus atezolizumab alone in patients who have already received atezolizumab plus chemotherapy for the treatment of small cell lung cancer that has spread outside of the lung or to other parts of the body (extensive stage). Immunotherapy with monoclonal antibodies, such as atezolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Giving radiation therapy in addition to atezolizumab may extend the time without extensive small cell lung cancer growing or spreading compared to atezolizumab alone.
Detailed description
PRIMARY OBJECTIVES:
- To compare investigator-assessed progression free survival (PFS) between atezolizumab plus radiotherapy and atezolizumab alone. (Phase II) II. To compare overall survival (OS) between atezolizumab plus radiotherapy and atezolizumab alone. (Phase III)
SECONDARY OBJECTIVES:
- To assess the toxicity between the atezolizumab plus radiotherapy arm and the atezolizumab arm.
II. To assess the impact of adding radiotherapy on PFS and OS in patients with 1-3 visible tumors and > 3 visible tumors.
III. To assess the impact of adding radiotherapy on PFS and OS in patients receiving consolidation radiotherapy to all visible disease ("complete consolidation") and patients who do not receive consolidation radiation to all visible disease ("incomplete consolidation").
EXPLORATORY OBJECTIVE:
- To assess the association between pre-treatment tumor burden (determined by central radiographic assessment, using both tumor number and tumor volume), and PFS and OS benefit.
OUTLINE: Patients are randomized to 1 of 2 arms.
ARM I: Patients receive atezolizumab intravenously (IV) over 30 minutes +/- 10 minutes on day 1. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity.
ARM II: Patients receive atezolizumab IV over 30 minutes +/- 10 minutes. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients undergo radiation therapy once daily (QD) on days 1-5 during weeks 1-5 only.
Patients undergo positron emission tomography and computed tomography (PET/CT) scan, computed tomography (CT), and magnetic resonance imaging (MRI) throughout the trial. Patients also undergo blood and tissue collection throughout the trial.
After completion of study treatment, patients are followed up every 3 months for 2 years, every 6 months for 3 years, and then annually thereafter.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Arm I (atezolizumab) | Active comparator | Drug: Atezolizumab, Procedure: Biospecimen Collection, Procedure: Computed Tomography, Procedure: Magnetic Resonance Imaging, Procedure: Positron Emission TomographyPatients receive atezolizumab IV over 30 minutes +/- 10 minutes on day 1. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients undergo PET/CT scan, CT, and MRI throughout the trial. Patients also undergo blood and tissue collection throughout the trial. |
| Arm II (atezolizumab, radiation therapy) | Experimental | Drug: Atezolizumab, Procedure: Biospecimen Collection, Procedure: Computed Tomography, Procedure: Magnetic Resonance Imaging, Procedure: Positron Emission Tomography, Radiation: Radiation TherapyPatients receive atezolizumab IV over 30 minutes +/- 10 minutes on day 1. Cycles repeat every 21 days in the absence of disease progression or unacceptable toxicity. Patients undergo radiation therapy QD on days 1-5 during weeks 1-5 only. Patients undergo PET/CT scan, CT, and MRI throughout the trial. Patients also undergo blood and tissue collection throughout the trial. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (26 listed)
- Any confirmation (cytologic, histologic, or pathologic) of extensive stage small cell lung cancer at any site, either primary or metastases
- Partial response (PR) or stable disease (SD) after 4-6 cycles of etoposide/platinum (E/P) doublet plus atezolizumab by re-staging scans (positron emission tomography [PET]/computed tomography [CT] scan, diagnostic CT scan, magnetic resonance imaging [MRI] optional per treating physician); atezolizumab should continue through randomization. Patients must be randomized within 9 weeks of last dose of etoposide/platinum (if not receiving PCI) or 6 weeks from completion of prophylactic cranial irradiation (PCI)
- Patients must have measurable disease (per Response Evaluation Criteria in Solid Tumors [RECIST]) and 3 or fewer observable liver metastases and no evidence of progressive disease (per RECIST) at time of enrollment
- At time of enrollment after induction E/P chemotherapy and atezolizumab, if there is a pleural effusion, patients will be eligible if thoracentesis is cytologically negative or if pleural fluid is too small a volume to effectively sample by thoracentesis and does not show increased metabolic activity on CT/PET imaging
- Appropriate stage for study entry based on the following diagnostic workup:
Key exclusion criteria (23 listed)
- Metastatic disease invading the liver (> 3 metastases), heart or > 10 metastatic sites detectable after induction systemic therapy. Each visible bone metastasis on radiographic scan counts as one site
- Patients with a concurrent malignancy whose natural history or treatment has the potential to interfere with the safety or efficacy assessment of the investigational regimen with atezolizumab or radiation
- Prior radiotherapy in the thorax that would result in overlapping RT fields, unless the overlapping fields meet acceptable dose constraints for normal tissue
- Active autoimmune disease, including, but not limited to: systemic lupus erythematosus; rheumatoid arthritis; inflammatory bowel disease (e.g. Crohn's, ulcerative colitis); vascular thrombosis associated with antiphospholipid syndrome; Wegener's granulomatosis; Sjogren's syndrome; Guillain-Barre syndrome; multiple sclerosis; vasculitis; or glomerulonephritis.
- Severe, active co-morbidity defined as follows:
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| AtezolizumabAlso: MPDL 3280A, MPDL 328OA, MPDL-3280A, MPDL3280AGiven IV | Drug | Arm I (atezolizumab), Arm II (atezolizumab, radiation therapy) |
| Biospecimen CollectionAlso: Biological Sample Collection, Biospecimen Collected, Sample Collection, Specimen CollectionUndergo blood and tissue collection | Procedure or surgery | Arm I (atezolizumab), Arm II (atezolizumab, radiation therapy) |
| Computed TomographyAlso: CAT, CAT Scan, Computed Axial Tomography, Computerized Axial TomographyUndergo CT | Procedure or surgery | Arm I (atezolizumab), Arm II (atezolizumab, radiation therapy) |
| Magnetic Resonance ImagingAlso: Magnetic Resonance, Magnetic Resonance Imaging (MRI), Magnetic resonance imaging (procedure), Magnetic Resonance Imaging ScanUndergo MRI | Procedure or surgery | Arm I (atezolizumab), Arm II (atezolizumab, radiation therapy) |
| Positron Emission TomographyAlso: Medical Imaging, Positron Emission Tomography, PET, PET Scan, Positron emission tomography (procedure)Undergo PET | Procedure or surgery | Arm I (atezolizumab), Arm II (atezolizumab, radiation therapy) |
| Radiation TherapyAlso: Cancer Radiotherapy, Energy Type, ENERGY_TYPE, IrradiateUndergo radiation therapy | Radiation | Arm II (atezolizumab, radiation therapy) |
Primary outcome
Progression-free survival (PFS) (Phase II)
Time frame: From randomization to any documented progression or death due to any cause, whichever occurs first, assessed up to 6 years
Will compare the distributions of PFS between treatment arms using a one-sided stratified log-rank test in all randomized eligible patients. The rates at various timepoints (e.g., every 6 months after randomization) and medians of PFS for each arm will be estimated using the Kaplan-Meier method. The associated 95% confidence interval (CI) will be calculated using Greenwood's formula and based on a log-log transformation applied on the survival function. Results from an unstratified analysis will also be provided.
Overall survival (OS) (Phase III)
Time frame: From randomization to the date of death due to any cause, assessed up to 6 years
Will compare arm I to arm 2 based on OS using a stratified log-rank test. Hazard ratios will be estimated using a stratified Cox regression model. Event rates over time will be estimated within each treatment group using the Kaplan-Meier method.
6 secondary outcomes
Incidence of adverse events
Time frame: Up to 6 years
PFS (Phase III)
Time frame: Up to 6 years
PFS in patients with 1-3 distinct visible tumors and > 3 distinct visible tumors
Time frame: Up to 6 years
OS in patients with 1-3 distinct visible tumors and > 3 distinct visible tumors
Time frame: Up to 6 years
PFS in patients receiving consolidation radiotherapy to all visible disease and patients who do not receive consolidation radiotherapy to all visible disease
Time frame: Up to 6 years
OS in patients receiving consolidation radiotherapy to all visible disease and patients who do not receive consolidation radiotherapy to all visible disease
Time frame: Up to 6 years
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Oct 2026.
- Derived from this study: PubMed 41671459Ganti AKP, Loo BW Jr, Badiyan S, Bassetti M, Bestvina C, Chiang A, Choudhury N, D'Avella CA, Daly M, Dowlati A, Edelman M, Florsheim C, Gold KA, Goldman JW, Grecula JC, Hann C, Khalil M, Lee R, Malhotra J, Merritt RE, Mohindra N, Molina JR, Moran C, Mulvey C, Osmundson EC, Patel S, Patil T, Pokharel S, Puri S, Qin A, Sands J, Shields M, Tailor TD, Waqar SN, Cassara CJ, Ramakrishnan S. NCCN Guidelines(R) Insights: Small Cell Lung Cancer, Version 2.2026. J Natl Compr Canc Netw. 2026 Jan;24(1):e260002. doi: 10.6004/jnccn.2026.0002.
- Individual participant dataSharing planned: Yes. NCI is committed to sharing data in accordance with NIH policy. For more details on how clinical trial data is shared, access the link to the NIH data sharing policy page.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Quynh-Nhu Nguyen principal investigator
NRG Oncology
411 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2/3 study testing Atezolizumab, Biospecimen Collection and Computed Tomography in people with Extensive Stage Lung Small Cell Carcinoma, run by National Cancer Institute (NCI) at 411 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 26 inclusion and 23 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: paused, as of the sponsor's last update on 29 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 411 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this combined phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Progression-free survival (PFS) (Phase II) (time frame: From randomization to any documented progression or death due to any cause, whichever occurs first, assessed up to 6 years). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04402788, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Oct 2026.