Small Cell Lung CancerPhase 3NCT04624204
Placebo-controlled, Study of Concurrent Chemoradiation Therapy With Pembrolizumab Followed by Pembrolizumab and Olaparib in Newly Diagnosed Treatment-Naïve Limited-Stage Small Cell Lung Cancer (LS-SCLC) (MK 7339-013/KEYLYNK-013)
A Phase 3 study testing Pembrolizumab 200 mg, Pembrolizumab 400 mg and Olaparib 300 mg BID in people with Small Cell Lung Cancer, run by Merck Sharp & Dohme LLC at 187 sites in 25 countries.
Trial summary
Researchers are looking for new ways to treat Limited-Stage Small Cell Lung Cancer (LS-SCLC), a type of lung cancer that has not spread from the lung to other parts of the body. The purpose of this study is to learn if pembrolizumab and olaparib, when given with chemotherapy and radiation treatment (CRT), can be… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Small Cell Lung Cancer
- What is being tested?
- Pembrolizumab 200 mg, Pembrolizumab 400 mg and Olaparib 300 mg BID
- Type of treatment
- Injection or infusion, Surgery or procedure
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 672 participants
- Where
- 187 sitesin 25 countries
- Study dates
- 8 Dec 2020to 15 Nov 2027
- Phase
- Phase 3
- Are there results?
- Not yet: the study is under way
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
- Has pathologically (histologically or cytologically) confirmed Small Cell Lung Cancer (SCLC).
- Note: Note: Participants with histology showing a mixed tumor with small cell and non-small cell elements are not eligible.
- Has Limited-Stage SCLC (Stage I-III, by AJCC 8th Edition Cancer Staging), and can be safely treated with definitive radiation doses.
- Has no evidence of metastatic disease by whole body positron emission tomography /computed tomography (PET/CT scan), CT or magnetic resonance imaging (MRI) scans
- Has at least 1 lesion that meets the criteria for being measurable, as defined by Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1)
- Has not received prior treatment (chemotherapy or radiotherapy or surgery resection) of LS-SCLC.
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- Is not expected to require tumor resection during the course of the study.
- Must submit a pre-treatment tumor tissue sample (formalin-fixed, paraffin embedded blocks are preferred to slides) including cytologic sample, if tissue sample unavailable.
- Has Eastern Cooperative Oncology Group (ECOG) Performance score 0 or 1 assessed within 7 days prior to the first administration of study intervention.
- Has a life expectancy of at least 6 months.
- Has adequate organ function.
- Male and female participants who are not pregnant and of childbearing potential must follow contraceptive guidance during the treatment period and for the time needed to eliminate each study intervention.
- Male and female participants who are at least 18 years of age at the time of signing the information consent.
- Male participants must refrain from donating sperm during the treatment period and for the time needed to eliminate each study intervention.
- Abstains from breastfeeding during the study intervention period and for at least the following period after the last study intervention:
- Pembrolizumab: 120 days
- Olaparib: 30 days
Who cannot join
- Has history, current diagnosis, or features suggestive of myelodysplastic syndrome/ acute myeloid leukemia (MDS/AML).
- Has received prior therapy with an anti-programmed cell death 1 (anti-PD-1), anti-programmed cell death ligand 1 (anti-PDL1), or anti- programmed cell death ligand 2 (anti-PD-L2) agent or with an agent directed to another stimulatory or coinhibitory T-cell receptor
- Has received prior therapy with olaparib or with any other polyadenosine 5'diphosphoribose (polyADP ribose) polymerization (PARP) inhibitor.
- Had major surgery <4 weeks prior to the first dose of study intervention (except for placement of vascular access).
- Is currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks prior to the first dose of study intervention.
- Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy (in dosing exceeding 10 mg daily of prednisone equivalent) or any other form of immunosuppressive therapy within 7 days prior the first dose of study intervention.
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- Has a known additional malignancy that is progressing or has required active treatment within the past 5 years. Note: Participants with basal cell carcinoma of the skin, squamous cell carcinoma of the skin, superficial bladder cancer, or carcinoma in situ (e.g., breast carcinoma, cervical cancer in situ) that have undergone potentially curative therapy are not excluded.
- Has severe hypersensitivity (≥ Grade 3) to study intervention and/or any of its excipients.
- Has an active autoimmune disease that has required systemic treatment in past 2 years
- Has a history of (non-infectious) pneumonitis/interstitial lung disease that requires steroids
- Has an active infection requiring systemic therapy.
- Has a known history of human immunodeficiency virus (HIV) infection or Hepatitis B or known active Hepatitis C virus infection.
Trial locations and contacts
187 sites in 25 countries.
187 sites in 25 countries
United States35 sites
VA Ann Arbor Healthcare System ( Site 0050)
Ann Arbor, Michigan, 48105
Harry & Jeanette Weinberg Cancer Institute ( Site 0045)
Baltimore, Maryland, 21237
Memorial Sloan Kettering - Basking Ridge ( Site 0133)
Basking Ridge, New Jersey, 07920
St. Vincent Healthcare Frontier Cancer Center ( Site 0056)
Billings, Montana, 59102
Ironwood Cancer & Research Centers ( Site 0007)
Chandler, Arizona, 85224
University of Chicago Medical Center ( Site 0136)
Chicago, Illinois, 60637
Fairview Hospital-Moll Cancer Center ( Site 0141)
Cleveland, Ohio, 44111
Cleveland Clinic Main ( Site 0139)
Cleveland, Ohio, 44195
Memorial Sloan Kettering- Commack ( Site 0132)
Commack, New York, 11725
Texas Oncology - Dallas (Presbyterian)_McIntyre ( Site 0098)
Dallas, Texas, 75231
Texas Oncology - Dallas (Sammons) ( Site 0093)
Dallas, Texas, 75246
Providence Regional Cancer Partnership ( Site 0106)
Everett, Washington, 98201
Fort Wayne Medical Oncology and Hematology ( Site 0034)
Fort Wayne, Indiana, 46804
Saint Francis Cancer Center ( Site 0087)
Greenville, South Carolina, 29607
John Theurer Cancer Center ( Site 0064)
Hackensack, New Jersey, 07601
Memorial Sloan Kettering - Westchester-Thoracic Oncology ( Site 0134)
Harrison, New York, 10604
Penn State Hershey Cancer Institute ( Site 0081)
Hershey, Pennsylvania, 17033
MD Anderson Cancer Center ( Site 0100)
Houston, Texas, 77030
Millennium Research & Clinical Development ( Site 0143)
Houston, Texas, 77090
The University of Tennessee Medical Center ( Site 0116)
Knoxville, Tennessee, 37920
University of Kentucky Chandler Medical Center ( Site 0138)
Lexington, Kentucky, 40536
Loma Linda University Cancer Center ( Site 0011)
Loma Linda, California, 92350
Cleveland Clinic - Hillcrest Hospital-Hillcrest Hospital Cancer Center ( Site 0140)
Mayfield Heights, Ohio, 44124
Memorial Sloan Kettering - Monmouth ( Site 0135)
Middletown, New Jersey, 07748
Memorial Sloan Kettering - Bergen ( Site 0130)
Montvale, New Jersey, 07645
Rutgers Cancer Institute of New Jersey ( Site 0123)
New Brunswick, New Jersey, 08901
Memorial Sloan Kettering Cancer Center ( Site 0069)
New York, New York, 10021
Oncology Hematology West, PC dba Nebraska Cancer Specialists ( Site 0061)
Omaha, Nebraska, 68130
Overton Brooks VAMC ( Site 0041)
Shreveport, Louisiana, 71101
Medical Oncology Associates, PS ( Site 0142)
Spokane, Washington, 99208
Multicare Institute For Research And Innovation ( Site 0108)
Tacoma, Washington, 98405
Moffitt Cancer Center ( Site 0137)
Tampa, Florida, 33612
Memorial Sloan Kettering - Nassau ( Site 0131)
Uniondale, New York, 11553
Georgetown University ( Site 0017)
Washington D.C., District of Columbia, 20007
Virginia Mason Memorial- North Star Lodge Cancer Center ( Site 0112)
Yakima, Washington, 98902
China28 sites
Peking Union Medical College Hospital ( Site 3102)
Beijing, Beijing Municipality, 100006
Cancer Hospital Chinese Academy of Medical Sciences ( Site 3104)
Beijing, Beijing Municipality, 100021
Beijing Cancer hospital-Oncology Radiotherapy Department ( Site 3140)
Beijing, Beijing Municipality, 100142
Beijing Cancer Hospital ( Site 3127)
Beijing, Beijing Municipality, 130021
The First Hospital of Jilin University ( Site 3132)
Changchun, Jilin, 130021
Xiangya Hospital of Central South University ( Site 3137)
Changsha, Hunan, 410008
Second Xiangya Hospital of Central-South University ( Site 3128)
Changsha, Hunan, 410011
Hunan Cancer Hospital ( Site 3133)
Changsha, Hunan, 410013
West China Hospital of Sichuan University ( Site 3114)
Chengdu, Sichuan, 510115
Chongqing Cancer Hospital ( Site 3135)
Chongqing, Chongqing Municipality, 400030
Daping Hospital,Third Military Medical University ( Site 3136)
Chongqing, Chongqing Municipality, 400042
Fujian Provincial Cancer Hospital ( Site 3126)
Fuzhou, Fujian, 350014
Hangzhou Cancer Hospital ( Site 3129)
Hanghzou, Zhejiang, 310002
The 1st Affil Hosp of College of Medicine, Zhejiang Univ ( Site 3131)
Hangzhou, Zhejiang, 310003
Zhejiang Cancer Hospital ( Site 3108)
Hangzhou, Zhejiang, 310022
Affiliated Cancer Hospital of Shandong First Medical University ( Site 3100)
Jinan, Shandong, 250117
The Second Affiliated Hospital of Nanchang University ( Site 3106)
Nanchang, Jiangxi, 330006
Jiangsu Cancer Hospital ( Site 3139)
Nanjing, Jiangsu, 210000
Shanghai Chest Hospital ( Site 3107)
Shanghai, Shanghai Municipality, 200030
Shanghai Pulmonary Hospital ( Site 3101)
Shanghai, Shanghai Municipality, 200443
Peking University Shenzhen Hospital ( Site 3118)
Shenzhen, Guangdong, 518036
Cancer Hospital Chinese Academy Of Medical Sciences. Shenzhen Center ( Site 3113)
Shenzhen, Guangdong, 518116
Tianjin Medical University Cancer Institute & Hospital ( Site 3103)
Tianjin, Tianjin Municipality, 300060
Tongji Medical College Huazhong University of Science and Technology ( Site 3138)
Wuhan, Hubei, 430030
Union Hospital, Tongji Medical College of HUST ( Site 3123)
Wuhan, Hubei, 430048
Hubei Cancer Hospital ( Site 3120)
Wuhan, Hubei, 430079
The First Affiliated Hospital of Xiamen University ( Site 3121)
Xiamen, Fujian, 361003
Henan Cancer Hospital ( Site 3105)
Zhengzhou, Henan, 450008
Japan16 sites
National Hospital Organization Kyushu Cancer Center ( Site 4000)
Fukuoka, 811-1395
Kansai Medical University Hospital ( Site 4009)
Hirakata, Osaka, 573-1191
Kobe Minimally Invasive Cancer Center ( Site 4003)
Kobe, Hyōgo, 650-0046
Aichi Cancer Center ( Site 4010)
Nagoya, Aichi-ken, 464-8681
Shizuoka Cancer Center ( Site 4014)
Nakatogari, Shizuoka, 411-8777
Niigata Cancer Center Hospital ( Site 4004)
Niigata, 951-8566
Okayama University Hospital ( Site 4012)
Okayama, 700-8558
Osaka International Cancer Institute ( Site 4005)
Osaka, 541-8567
Takarazuka City Hospital ( Site 4013)
Takarazuka, Hyōgo, 665-0827
Osaka Medical and Pharmaceutical University Hospital ( Site 4007)
Takatsuki, Osaka, 569-8686
National Cancer Center Hospital ( Site 4015)
Tokyo, 104-0045
Juntendo University Hospital ( Site 4008)
Tokyo, 113-0033
Tokyo Metropolitan Komagome Hospital ( Site 4011)
Tokyo, 113-8677
Cancer Institute Hospital of JFCR ( Site 4006)
Tokyo, 135-8550
Showa Medical University Hospital ( Site 4002)
Tokyo, 142-8666
Kanagawa Cancer Center ( Site 4001)
Yokohama, Kanagawa, 241-8515
France9 sites
Institut de Cancerologie de l Ouest Site Paul Papin ( Site 1103)
Angers, Maine-et-Loire, 49000
Hopital Avicenne ( Site 1106)
Bobigny, Seine-Saint-Denis, 93000
CHU de Bordeaux Hop St ANDRE ( Site 1115)
Bordeaux, Aquitaine, 33075
CHU Grenoble -Hop Michallon ( Site 1102)
Grenoble, Isere, 38043
Clinique Clairval ( Site 1108)
Marseille, Bouches-du-Rhone, 13009
Hopitaux Universitaires Paris Centre-Hopital Cochin ( Site 1105)
Paris, Île-de-France Region, 75014
Institut De Cancerologie De L Ouest ( Site 1110)
Saint-Herblain, Loire-Atlantique, 44805
C.H. de Saint Quentin ( Site 1111)
Saint-Quentin, Aisne, 02321
H.I.A. Sainte-Anne ( Site 1101)
Toulon, Var, 83800
Italy9 sites
Azienda Ospedaliera Spedali Civili di Brescia ( Site 1512)
Brescia, 25123
Azienda Ospedaliero Universitaria Careggi ( Site 1509)
Florence, Firenze, 50134
IRCCS Ospedale San Raffaele ( Site 1500)
Milan, 20132
Istituto Nazionale dei Tumori ( Site 1504)
Milan, 20133
Istituto Europeo di Oncologia ( Site 1501)
Milan, 20141
A O U Policlinico di Modena ( Site 1503)
Modena, Emilia-Romagna, 41125
IRCCS Istituto Oncologico Veneto ( Site 1506)
Padova, 35128
Policlinico Universitario Agostino Gemelli ( Site 1505)
Roma, 00168
Azienda Ospedaliera Universitaria Integrata Verona - Ospedale Borgo Trento-Oncology Unit ( Site 1513)
Verona, Veneto, 37126
South Korea8 sites
Inje University Haeundae Paik Hospital ( Site 3307)
Busan, Pusan-Kwangyokshi, 48108
Keimyung University Dongsan Hospital CRC room 1 ( Site 3302)
Daegu, Taegu-Kwangyokshi, 42601
National Cancer Center ( Site 3306)
Goyang-si, Kyonggi-do, 10408
Seoul National University Bundang Hospital ( Site 3301)
Seongnam-si, Kyonggi-do, 13620
Severance Hospital Yonsei University Health System ( Site 3304)
Seoul, 03722
Samsung Medical Center ( Site 3300)
Seoul, 06351
Asan Medical Center ( Site 3308)
Songpagu, Seoul, 05505
The Catholic University of Korea St. Vincent s Hospital ( Site 3303)
Suwon, Kyonggi-do, 16247
Ukraine8 sites
Medical Center of Yuriy Spizhenko LLC.-Clinical Trial ( Site 2104)
Kapitanivka Village, Kyivska Oblast, 08111
Grigoriev Institute for medical Radiology NAMS of Ukraine ( Site 2110)
Kharkiv, Kharkiv Oblast, 61024
Municipal non-profit Enterprise "Khmelnytskyi Regional Antitumor Center" ( Site 2115)
Khmelnytskyi, Khmelnytskyi Oblast, 29009
Clinic of National Cancer Institute ( Site 2101)
Kyiv, Kyivska Oblast, 03022
Medical Center Verum ( Site 2106)
Kyiv, Kyivska Oblast, 03039
Kyiv City Clinical Oncology Center ( Site 2100)
Kyiv, 03115
LISOD. Hospital ( Site 2111)
Pliuty, Kyiv Oblast, 08720
Communal Noncommercial Enterprise "Podillia Regional Oncolog-Chemotherapy Department ( Site 2114)
Vinnytsia, Vinnytsia Oblast, 21029
Australia7 sites
Campbelltown Hospital ( Site 3002)
Campbelltown, New South Wales, 2560
Frankston Hospital-Oncology and Haematology ( Site 3007)
Frankston, Victoria, 3199
Austin Health-Austin Hospital ( Site 3006)
Heidelberg, Victoria, 3084
Nepean Hospital ( Site 3001)
Kingswood, New South Wales, 2747
Gold Coast University Hospital ( Site 3003)
Southport, Queensland, 4215
Western Health-Sunshine Hospital ( Site 3004)
St Albans, Victoria, 3021
Calvary Mater Newcastle ( Site 3000)
Waratah, New South Wales, 2298
Russia7 sites
Moscow Regional Oncological Dispensary-Oncology (thoracic surgery) Department №1 ( Site 1815)
Balashikha, Moscow Oblast, 143900
Republican Clinical Oncology Dispensary-Chemotherapy #1 ( Site 1814)
Kazan', Tatarstan, Respublika, 420029
Main Military Clinical Hospital n.a. N.N.Burdenko ( Site 1812)
Moscow, Moscow, 105094
MROI n.a. P.A. Herzen - branch of FSBI NMICR of MoH of Russia ( Site 1800)
Moscow, Moscow, 125284
Nizhniy Novgorod Region Oncology Dispensary ( Site 1811)
Nizhny Novgorod, Nizhny Novgorod Oblast, 603081
Omsk Clinical Oncology Dispensary ( Site 1806)
Omsk, Omsk Oblast, 644013
Sverdlovsk Regional Oncology Hospital ( Site 1807)
Yekaterinburg, Sverdlovsk Oblast, 620036
Belgium6 sites
Saint-Luc UCL ( Site 1005)
Brussels, Bruxelles-Capitale, Region de, 1200
Grand Hopital de Charleroi ( Site 1003)
Gilly, Hainaut, 6060
UZ Leuven ( Site 1002)
Leuven, Vlaams-Brabant, 3000
C.I.U. Hopital Ambroise Pare ( Site 1001)
Mons, Hainaut, 7000
AZ Delta ( Site 1000)
Roeselare, West-Vlaanderen, 8800
CHU UCL Namur Site de Godinne ( Site 1004)
Yvoir, Namur, 5530
Hungary6 sites
Orszagos Koranyi Pulmonologiai Intezet ( Site 1301)
Budapest, 1121
Orszagos Onkologiai Intezet ( Site 1310)
Budapest, 1122
Uzsoki Utcai Korhaz ( Site 1303)
Budapest, 1145
Petz Aladar Megyei Oktato Korhaz ( Site 1312)
Győr, Győr-Moson-Sopron, 9024
Bacs-Kiskun Megyei Korhaz-Onkoradiologiai Kozpont ( Site 1306)
Kecskemét, Bács-Kiskun county, 6000
Reformatus Pulmonologiai Centrum ( Site 1304)
Törökbálint, Pest County, 2045
Spain6 sites
Hospital Universitari Vall d Hebron ( Site 1904)
Barcelona, 08035
Hospital Duran i Reynals ( Site 1903)
L'Hospitalet de Llobregat, Barcelona, 08908
Hospital Universitario 12 de Octubre ( Site 1902)
Madrid, 28041
Hospital Regional Universitario de Malaga ( Site 1905)
Málaga, 29010
Hospital Universitario Central de Asturias ( Site 1900)
Oviedo, Principality of Asturias, 33011
Hospital Universitario Virgen Macarena-Unidad de Investigación Oncológica ( Site 1907)
Seville, 41009
United Kingdom6 sites
Royal Infirmary Aberdeen ( Site 2403)
Aberdeen, Aberdeen City, AB25 2ZN
Ninewells Hospital and Medical School ( Site 2401)
Dundee, Dundee City, DD1 9SY
Barts Health NHS Trust ( Site 2409)
London, London, City of, EC1A 7BE
Guy s & St Thomas NHS Foundation Trust ( Site 2408)
London, London, City of, SE1 9RT
The Christie NHS Foundation Trust ( Site 2405)
Manchester, M20 4GJ
Taunton and Somerset Hospital ( Site 2404)
Taunton, England, TA1 5DA
Canada5 sites
Cross Cancer Institute ( Site 0206)
Edmonton, Alberta, T6G 1Z2
Hamilton Health Sciences-Juravinski Cancer Centre ( Site 0212)
Hamilton, Ontario, L8V 5C2
CIUSSS Ouest de l Ile - St-Mary s Hospital ( Site 0202)
Montreal, Quebec, H3T 1M5
McGill University Health Centre ( Site 0210)
Montreal, Quebec, H4A 3J1
CIUSSS de la Mauricie et du Centre du Quebec ( Site 0200)
Trois-Rivières, Quebec, G8Z 3R9
Greece5 sites
Henry Dunant Hospital ( Site 1205)
Athens, Attica, 115 26
Sotiria Regional Chest Diseases Hospital of Athens ( Site 1200)
Athens, Attica, 115 27
University General Hospital of Herakleion ( Site 1202)
Heraklion, Irakleio, 711 10
University General Hospital of Larisa ( Site 1201)
Larissa, Thessaly, 411 10
Anti-Cancer Hospital of Thessaloniki Theagenio ( Site 1204)
Thessaloniki, Central Macedonia, 54007
Romania5 sites
S.C.Focus Lab Plus S.R.L ( Site 2804)
Bucharest, 022548
Institutul Oncologic Prof.Dr. Ion Chiricuta Cluj-Napoca ( Site 2803)
Cluj-Napoca, Cluj, 400015
Amethyst Radiotherapy Center-Oncologie Medicala ( Site 2805)
Florești, Cluj, 407280
Spitalul Municipal Ploiesti ( Site 2801)
Ploieşti, Prahova, 100337
Cabinet Medical Oncomed ( Site 2802)
Timișoara, Timiș County, 300239
Turkey (Türkiye)5 sites
Ankara Bilkent Sehir Hastanesi ( Site 2007)
Ankara, 06800
Istanbul Universitesi Cerrahpasa Tip Fakultesi ( Site 2009)
Istanbul, 34098
Medipol Universite Hastanesi ( Site 2005)
Istanbul, 34214
Göztepe Prof. Dr. Süleyman Yalçın Şehir Hastanesi-oncology ( Site 2003)
Istanbul, 34722
Ege Universitesi Tip Fakultesi Hastanesi ( Site 2001)
Izmir, 35040
Portugal3 sites
Unidade Local de Saude de Santa Maria - Hospital Pulido Valente ( Site 1704)
Lisbon, Lisbon District, 1769-001
Inst. Portugues de Oncologia de Lisboa Francisco Gentil EPE ( Site 1705)
Lisbon, 1099-023
Instituto Portugues de Oncologia Do Porto Francisco Gentil E.P.E. ( Site 1701)
Porto, 4200-072
Estonia2 sites
SA Pohja-Eesti Regionaalhaigla ( Site 2201)
Tallinn, Harju, 13419
SA Tartu Ulikooli Kliinikum ( Site 2200)
Tartu, Tartu, 50406
Israel2 sites
Rambam Health Care Campus-Oncology Division ( Site 1401)
Haifa, 3109601
Chaim Sheba Medical Center ( Site 1400)
Ramat Gan, 5262000
Lithuania2 sites
LSMUL Kauno Klinikos ( Site 2301)
Kaunas, 50161
Nacionalinis Vezio Institutas ( Site 2300)
Vilnius, Vilniaus Miestas, 08660
Mexico2 sites
Hospital Civil de Guadalajara Fray Antonio Alcalde ( Site 0401)
Guadalajara, Jalisco, 44280
Hospital Universitario "Dr. Jose Eleuterio Gonzalez" ( Site 0404)
Monterrey, Nuevo León, 64460
Serbia2 sites
Institute for Oncology and Radiology of Serbia ( Site 2995)
Belgrade, Beograd, 11000
Institut za plucne bolesti Vojvodine Sremska Kamenica ( Site 2991)
Kamenitz, Sremski Okrug, 21204
South Africa2 sites
Groote Schuur Hospital ( Site 5002)
Cape Town, Western Cape, 7925
Steve Biko Academic Hospital ( Site 5000)
Pretoria, Gauteng, 0002
Bulgaria1 site
MHAT "Uni Hospital" OOD ( Site 2507)
Panagyurishte, Pazardzhik, 4500
About this study
Official title: A Randomized, Double-blind, Placebo-controlled Phase 3 Study of Pembrolizumab (MK-3475) in Combination With Concurrent Chemoradiation Therapy Followed by Pembrolizumab With or Without Olaparib (MK-7339), Compared to Concurrent Chemoradiation Therapy Alone in Participants With Newly Diagnosed Treatment-Naïve Limited-Stage Small Cell Lung Cancer (LS-SCLC)
Researchers are looking for new ways to treat Limited-Stage Small Cell Lung Cancer (LS-SCLC), a type of lung cancer that has not spread from the lung to other parts of the body. The purpose of this study is to learn if pembrolizumab and olaparib, when given with chemotherapy and radiation treatment (CRT), can be effective in treating LS-SCLC. The researchers want to know if participants who receive CRT and pembrolizumab, with or without olaparib, have a longer overall survival compared to participants who only receive CRT.
- Conditions
- Small Cell Lung Cancer
- Being tested
- Pembrolizumab 200 mg, Pembrolizumab 400 mg, Pembrolizumab placebo (saline), Olaparib 300 mg BID, Olaparib matching placebo
- Keywords
- Programmed Cell Death-1 (PD1, PD-1), Programmed Death-Ligand 1 (PDL1, PD-L1), Pembrolizumab, Olaparib
- Medical subject headings
- Small Cell Lung Carcinoma, Parkinson Disease 4, Autosomal Dominant Lewy Body
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Pembrolizumab 200 mgBiological
Also called MK-3475, KEYTRUDA®
Pembrolizumab 200 mg Q3W
Pembrolizumab 400 mgBiological
Also called MK-3475, KEYTRUDA®
Pembrolizumab 400 mg Q6W
Pembrolizumab placebo (saline)Drug
Pembrolizumab placebo (saline) Q3W
Pembrolizumab placebo (saline)Drug
Pembrolizumab placebo (saline) Q6W
Olaparib 300 mg BIDDrug
Also called MK-7339, LYNPARZA®
Olaparib 300 mg twice daily (BID)
Olaparib matching placeboDrug
Olaparib matching placebo BID
Etoposide 100 mg/m^2Drug
Etoposide 100 mg/m^2 intravenous (IV) Q3W, Day 1-3
Platinum, investigator's choiceDrug
Carboplatin titrated to an area under the plasma drug concentration time curve (AUC) of 5 mg/mL/min IV Q3W OR Cisplatin 75 mg/m^2 IV Q3W on Day 1 of each cycle
Standard Thoracic RadiotherapyRadiation
Standard Thoracic Radiotherapy
Prophylactic Cranial Irradiation (PCI)Radiation
PCI will be strongly recommended for participants who achieve CR or PR after completion of chemoradiation treatment.
| Study group | Role | What they receive |
|---|---|---|
| Group A - Pembrolizumab 200 mg | Experimental | Participants will receive 4 cycles of standard-of-care chemotherapy (etoposide/platinum) plus pembrolizumab 200 mg every 3 weeks (Q3W) concurrently with standard thoracic radiotherapy, followed by 9 cycles of pembrolizumab 400 mg every 6 weeks (Q6W) plus olaparib matching placebo twice daily (BID) for 12 months or until specific discontinuation criteria are met. Receives: Biological: Pembrolizumab 200 mg; Biological: Pembrolizumab 400 mg; Drug: Olaparib matching placebo; Drug: Etoposide 100 mg/m^2; Drug: Platinum, investigator's choice; Radiation: Standard Thoracic Radiotherapy; Radiation: Prophylactic Cranial Irradiation (PCI) |
| Group B - Pembrolizumab 200 mg plus Olaparib 300 mg BID | Experimental | Participants will receive 4 cycles of standard-of-care chemotherapy (etoposide/platinum) plus pembrolizumab 200 mg Q3W concurrently with standard thoracic radiotherapy, followed by 9 cycles of pembrolizumab 400 mg Q6W plus olaparib 300 mg BID for 12 months or until specific discontinuation criteria are met. Receives: Biological: Pembrolizumab 200 mg; Biological: Pembrolizumab 400 mg; Drug: Olaparib 300 mg BID; Drug: Etoposide 100 mg/m^2; Drug: Platinum, investigator's choice; Radiation: Standard Thoracic Radiotherapy; Radiation: Prophylactic Cranial Irradiation (PCI) |
| Group C (Pembrolizumab and Olaparib Matching Placebos) | Placebo comparator | Participants will receive 4 cycles of standard-of-care chemotherapy (etoposide/platinum) plus pembrolizumab placebo (saline) Q3W concurrently with standard thoracic radiotherapy, followed by 9 cycles of pembrolizumab placebo (saline) Q6W plus olaparib matching placebo for 12 months or until specific discontinuation criteria are met. Receives: Drug: Pembrolizumab placebo (saline); Drug: Olaparib matching placebo; Drug: Etoposide 100 mg/m^2; Drug: Platinum, investigator's choice; Radiation: Standard Thoracic Radiotherapy; Radiation: Prophylactic Cranial Irradiation (PCI) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Overall Survival: the time from randomization to death due to any cause
Overall Survival (OS) is the time from randomization to death due to any cause.
Measured: Up to approximately 82 months
Secondary outcomes (19)
Progression-free Survival Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1); the time from randomization to progression or death due to any cause, whichever occurs first
Progression-free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) is the time from randomization to progression or death due to any cause, whichever occurs first.
Measured: Up to approximately 59 months
Number of Participants Experiencing an Adverse Events (AEs)
An AE is defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it is considered related to the medical treatment or procedure, that occurs during the course of the study.
Measured: Up to approximately 82 months
Number of Participants Discontinuing Study Treatment Due to Adverse Events (AEs)
An AE is defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it is considered related to the medical treatment or procedure, that occurs during the course of the study.
Measured: Up to approximately 82 months
Objective Response (OR): Complete Response (CR) or Partial Response (PR)
Percentage of participants in the analysis population who have a best overall response of either confirmed CR or a PR per RECIST 1.1.
Measured: Up to approximately 82 months
Duration of Response (DOR): the time from the earliest date of first documented evidence of confirmed CR or PR until the earliest date of disease progression or death from any cause, whichever comes first
DOR is the time from the earliest date of first documented evidence of confirmed CR or PR until the earliest date of disease progression or death from any cause, whichever comes first.
Measured: Up to approximately 82 months
Change from Baseline at Cycle 1 in European Organization for Research and Treatment (EORTC) Quality of Life Questionnaire-Core 30 (QLQ-C30) Global Health Status / Quality of Life (Items 29 & 30) Scale Score
The EORTC QLQ-C30 is a questionnaire to assess the overall quality of life of cancer patients. Participant responses to the question "How would you rate your overall health during the past week?" are scored on a 7-point scale (1= Very poor to 7=Excellent). Using linear transformation, raw scores are standardized, so that scores range from 0 to 100. A higher score indicates a better overall health status. The change from baseline in EORTC QLQ-C30 Items 29 and 30 scores will be presented.
Measured: Baseline and 82 months post randomization
Change from Baseline at Cycle 1 in EORTC Quality of Life Questionnaire Lung Cancer Module 13 (QLQ-LC13) Cough (Item 1) Scale Score
The EORTC QLQ-LC13 is a lung cancer specific supplemental questionnaire used in combination with the EORTC QLQC30 questionnaire. Participant responses to the question "How much did you cough?" are scored on a 4-point scale (1=Not at All to 4=Very Much). Using linear transformation, raw scores are standardized, so that scores range from 0 to 100. A lower score indicates a better outcome. The change from baseline in EORTC QLQ-LC13 cough (Item 1) score will be presented.
Measured: Baseline and 82 months post randomization
Change from Baseline at Cycle 1 in EORTC QLQ-LC13 Chest Pain (Item 10) Scale Score
The EORTC QLQ-LC13 is a lung cancer-specific supplemental questionnaire used in combination with the EORTC QLQC30 questionnaire. Participant responses to the question "How was your chest pain?" are scored on a 4 point scale (1=Not at All to 4=Very Much). Using linear transformation, raw scores are standardized, so that scores range from 0 to 100. A lower score indicates a better outcome. The change from baseline in EORTC QLQ-LC13 chest pain (Item 10) score will be presented.
Measured: Baseline and 82 months post randomization
Change from Baseline at Cycle 1 in EORTC QLQ-C30 Dyspnea (Item 8) Scale Score
The EORTC QLQ-C30 is a questionnaire to assess the overall quality of life of cancer patients. Participant responses to the question "Were you short of breath?" are scored on a 4-point scale (1=Not at All to 4=Very Much). Using linear transformation, raw scores are standardized, so that scores range from 0 to 100. A lower score indicates a better outcome. The change from baseline in EORTC QLQ-LC13 dyspnea (Item 8) score will be presented.
Measured: Baseline and 82 months post randomization
Change from Baseline at Cycle 1 in EORTC QLQ-C30 Physical Functioning (Items 1 to 5) Scale Score
The EORTC QLQ-C30 is a questionnaire to assess the overall quality of life of cancer patients. Participant responses to 5 questions about their physical functioning are scored on a 4-point scale (1=Not at All to 4=Very Much). Using linear transformation, raw scores are standardized, so that scores range from 0 to 100. A higher score indicates a better quality of life. The change from baseline in Physical Functioning (EORTC QLQ-C30 Items 1-5) score will be presented.
Measured: Baseline and 82 months post randomization
Time to True Deterioration (TTD) in EORTC QLQ-C30 Global Health Status / Quality of Life (Items 29 & 30) Scale Score
The EORTC QLQ-C30 is a questionnaire to assess the overall quality of life of cancer patients. Participant responses to the question "How would you rate your overall health during the past week?" are scored on a 7-point scale (1= Very poor to 7=Excellent). Using linear transformation, raw scores are standardized, so that scores range from 0 to 100. A higher score indicates a better overall health status. TTD was defined as the time from baseline (at randomization) to the first onset of a ≥10-point decrease with confirmation by the subsequent visit of a ≥10-point decrease in EORTC QLQ-C30 Items 29 and 30 scale scores.
Measured: Up to approximately 82 months post randomization
Time to True Deterioration (TTD) in Cough (LC13/Item 1) Scale Score
The EORTC QLQ-LC13 is a lung cancer-specific supplemental questionnaire used in combination with the EORTC QLQC30 questionnaire. Participant responses to the question "How much did you cough?" are scored on a 4-point scale (1=Not at All to 4=Very Much). Using linear transformation, raw scores are standardized, so that scores range from 0 to 100. A lower score indicates a better outcome. TTD was defined as the time from baseline (at randomization) to the first onset of a ≥10-point decrease with confirmation by the subsequent visit of a ≥10-point decrease in cough EORTC QLQLC13 cough (Item 1) scale score.
Measured: Up to approximately 82 months post randomization
Time to True Deterioration (TTD) in Chest Pain (LC13/Item 10) Scale Score
The EORTC QLQ-LC13 is a lung cancer-specific supplemental questionnaire used in combination with the EORTC QLQC30 questionnaire. Participant responses to the question "How was your chest pain?" are scored on a 4-point scale (1=Not at All to 4=Very Much). Using linear transformation, raw scores are standardized, so that scores range from 0 to 100. A lower score indicates a better outcome. TTD was defined as the time from baseline (at randomization) to the first onset of a ≥10-point decrease with confirmation by the subsequent visit of a ≥10-point decrease in EORTC QLQ-LC13 chest pain (Item 10) scale score.
Measured: Up to approximately 82 months post randomization
Time to True Deterioration (TTD) in EORTC QLQ-C30 Dyspnea (Item 8) Scale Score
The EORTC QLQ-C30 is a questionnaire to assess the overall quality of life of cancer patients. Participant responses to the question "Were you short of breath?" are scored on a 4-point scale (1=Not at All to 4=Very Much). Using linear transformation, raw scores are standardized, so that scores range from 0 to 100. A lower score indicates a better outcome. TTD was defined as the time from baseline (at randomization) to the first onset of a ≥10-point decrease with confirmation by the subsequent visit of a ≥10-point decrease in EORTC QLQ-C30 dyspnea (Item 8) scale score.
Measured: Up to approximately 82 months post randomization
Time to True Deterioration (TTD) in EORTC QLQ-C30 Physical Functioning (Items 1 to 5) Scale Score
The EORTC QLQ-C30 is a questionnaire to assess the overall quality of life of cancer patients. Participant responses to 5 questions about their physical functioning are scored on a 4-point scale (1=Not at All to 4=Very Much). Using linear transformation, raw scores are standardized, so that scores range from 0 to 100. A higher score indicates a better quality of life. TTD was defined as the time from baseline (at randomization) to the first onset of a ≥10-point decrease with confirmation by the subsequent visit of a ≥10-point decrease in EORTC QLQ-C30 physical functioning (Items 1 to 5) scale scores.
Measured: Up to approximately 82 months post randomization
Objective Response (OR, according to RECIST 1.1 by BICR) assessed by programmed cell death ligand 1 (PD-L1) expression levels
Percentage of participants in the analysis population who have a best overall response of either confirmed CR or a PR per RECIST 1.1, analyzed by programmed cell death ligand 1 (PD-L1) expression levels.
Measured: Up to approximately 82 months
Duration of Response (DOR, according to RECIST 1.1 by BICR) assessed by programmed cell death ligand 1 (PD-L1) expression levels
DOR is the time from the earliest date of first documented evidence of confirmed CR or PR until the earliest date of disease progression or death from any cause, whichever comes first, analyzed by programmed cell death ligand 1 (PD-L1) expression levels.
Measured: Up to approximately 82 months
Progression-free Survival (PFS, according to RECIST 1.1 by BICR) assessed by programmed cell death ligand 1 (PD-L1) expression levels
Progression-free Survival Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1); the time from randomization to progression or death due to any cause, whichever occurs first, analyzed by programmed cell death ligand 1 (PD-L1) expression levels.
Measured: Up to approximately 59 months
Overall Survival (OS) assessed by programmed cell death ligand 1 (PD-L1) expression levels
Overall Survival: the time from randomization to death due to any cause, analyzed by programmed cell death ligand 1 (PD-L1) expression levels.
Measured: Up to approximately 82 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Nov 2020
- Study start8 Dec 2020
- Primary completion28 Oct 2027 (estimated)
- Study completion15 Nov 2027 (estimated)
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 Small Cell Lung CancerStudies of the same condition, open and under way.
- More trials run by Merck Sharp & Dohme LLCThe 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 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 672 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Merck Sharp & Dohme LLC
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Medical Director, MD, Study director, Merck Sharp & Dohme LLC
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04624204
- Sponsor's protocol ID
- 7339-013
- Other IDs
- MK-7339-013, jRCT2031200296, 2023-504959-27-00, U1111-1290-4870, 2019-003616-31, 2019, 2023
- Status last verified
- Sep 2026
- First submitted
- 5 Nov 2020
- Last updated
- 24 Sep 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf
Publications
Rimner A, Lai WV, Califano R, Jabbour SK, Rudin CM, Faivre-Finn C, Cho BC, Kato T, Yu J, Chafin W, Yu L, Zhao B, Byers L. Rationale and Design of the Phase 3 KEYLYNK-013 Study of Pembrolizumab With Concurrent Chemoradiotherapy Followed by Pembrolizumab With or Without Olaparib for Limited-Stage Small-Cell Lung Cancer. Clin Lung Cancer. 2022 Jul;23(5):e325-e329. doi: 10.1016/j.cllc.2022.04.005. Epub 2022 Apr 29.
PubMed 35613997
Study at a glance
From the registry record, last updated by the sponsor on 24 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomized, Double-blind, Placebo-controlled Phase 3 Study of Pembrolizumab (MK-3475) in Combination With Concurrent Chemoradiation Therapy Followed by Pembrolizumab With or Without Olaparib (MK-7339), Compared to Concurrent Chemoradiation Therapy Alone in Participants With Newly Diagnosed Treatment-Naïve Limited-Stage Small Cell Lung Cancer (LS-SCLC)
- ClinicalTrials.gov ID
- NCT04624204
- Acronym / sponsor ID
- 7339-013
- Conditions
- Small Cell Lung Cancer
- Keywords
- Programmed Cell Death-1 (PD1, PD-1), Programmed Death-Ligand 1 (PDL1, PD-L1), Pembrolizumab, Olaparib
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 672 participants (estimated)
- Lead sponsor
- Merck Sharp & Dohme LLCIndustry (pharma, biotech, devices)
- Study start
- 8 Dec 2020 (actual)
- Primary completion
- 28 Oct 2027 (estimated)
- Study completion
- 15 Nov 2027 (estimated)
- First posted
- 10 Nov 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.
Researchers are looking for new ways to treat Limited-Stage Small Cell Lung Cancer (LS-SCLC), a type of lung cancer that has not spread from the lung to other parts of the body. The purpose of this study is to learn if pembrolizumab and olaparib, when given with chemotherapy and radiation treatment (CRT), can be effective in treating LS-SCLC. The researchers want to know if participants who receive CRT and pembrolizumab, with or without olaparib, have a longer overall survival compared to participants who only receive CRT.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Group A - Pembrolizumab 200 mg | Experimental | Biological: Pembrolizumab 200 mg, Biological: Pembrolizumab 400 mg, Drug: Olaparib matching placebo, Drug: Etoposide 100 mg/m^2, Drug: Platinum, investigator's choice, Radiation: Standard Thoracic Radiotherapy, Radiation: Prophylactic Cranial Irradiation (PCI)Participants will receive 4 cycles of standard-of-care chemotherapy (etoposide/platinum) plus pembrolizumab 200 mg every 3 weeks (Q3W) concurrently with standard thoracic radiotherapy, followed by 9 cycles of pembrolizumab 400 mg every 6 weeks (Q6W) plus olaparib matching placebo twice daily (BID) for 12 months or until specific discontinuation criteria are met. |
| Group B - Pembrolizumab 200 mg plus Olaparib 300 mg BID | Experimental | Biological: Pembrolizumab 200 mg, Biological: Pembrolizumab 400 mg, Drug: Olaparib 300 mg BID, Drug: Etoposide 100 mg/m^2, Drug: Platinum, investigator's choice, Radiation: Standard Thoracic Radiotherapy, Radiation: Prophylactic Cranial Irradiation (PCI)Participants will receive 4 cycles of standard-of-care chemotherapy (etoposide/platinum) plus pembrolizumab 200 mg Q3W concurrently with standard thoracic radiotherapy, followed by 9 cycles of pembrolizumab 400 mg Q6W plus olaparib 300 mg BID for 12 months or until specific discontinuation criteria are met. |
| Group C (Pembrolizumab and Olaparib Matching Placebos) | Placebo comparator | Drug: Pembrolizumab placebo (saline), Drug: Olaparib matching placebo, Drug: Etoposide 100 mg/m^2, Drug: Platinum, investigator's choice, Radiation: Standard Thoracic Radiotherapy, Radiation: Prophylactic Cranial Irradiation (PCI)Participants will receive 4 cycles of standard-of-care chemotherapy (etoposide/platinum) plus pembrolizumab placebo (saline) Q3W concurrently with standard thoracic radiotherapy, followed by 9 cycles of pembrolizumab placebo (saline) Q6W plus olaparib matching placebo for 12 months or until specific discontinuation criteria are met. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (17 listed)
- Has pathologically (histologically or cytologically) confirmed Small Cell Lung Cancer (SCLC).
- Note: Note: Participants with histology showing a mixed tumor with small cell and non-small cell elements are not eligible.
- Has Limited-Stage SCLC (Stage I-III, by AJCC 8th Edition Cancer Staging), and can be safely treated with definitive radiation doses.
- Has no evidence of metastatic disease by whole body positron emission tomography /computed tomography (PET/CT scan), CT or magnetic resonance imaging (MRI) scans
- Has at least 1 lesion that meets the criteria for being measurable, as defined by Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1)
Key exclusion criteria (12 listed)
- Has history, current diagnosis, or features suggestive of myelodysplastic syndrome/ acute myeloid leukemia (MDS/AML).
- Has received prior therapy with an anti-programmed cell death 1 (anti-PD-1), anti-programmed cell death ligand 1 (anti-PDL1), or anti- programmed cell death ligand 2 (anti-PD-L2) agent or with an agent directed to another stimulatory or coinhibitory T-cell receptor
- Has received prior therapy with olaparib or with any other polyadenosine 5'diphosphoribose (polyADP ribose) polymerization (PARP) inhibitor.
- Had major surgery <4 weeks prior to the first dose of study intervention (except for placement of vascular access).
- Is currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks prior to the first dose of study intervention.
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 |
|---|---|---|
| Pembrolizumab 200 mgAlso: MK-3475, KEYTRUDA®Pembrolizumab 200 mg Q3W | Biological | Group A - Pembrolizumab 200 mg, Group B - Pembrolizumab 200 mg plus Olaparib 300 mg BID |
| Pembrolizumab 400 mgAlso: MK-3475, KEYTRUDA®Pembrolizumab 400 mg Q6W | Biological | Group A - Pembrolizumab 200 mg, Group B - Pembrolizumab 200 mg plus Olaparib 300 mg BID |
| Pembrolizumab placebo (saline)Pembrolizumab placebo (saline) Q3W | Drug | Group C (Pembrolizumab and Olaparib Matching Placebos) |
| Pembrolizumab placebo (saline)Pembrolizumab placebo (saline) Q6W | Drug | Group C (Pembrolizumab and Olaparib Matching Placebos) |
| Olaparib 300 mg BIDAlso: MK-7339, LYNPARZA®Olaparib 300 mg twice daily (BID) | Drug | Group B - Pembrolizumab 200 mg plus Olaparib 300 mg BID |
| Olaparib matching placeboOlaparib matching placebo BID | Drug | Group A - Pembrolizumab 200 mg, Group C (Pembrolizumab and Olaparib Matching Placebos) |
| Etoposide 100 mg/m^2Etoposide 100 mg/m^2 intravenous (IV) Q3W, Day 1-3 | Drug | Group A - Pembrolizumab 200 mg, Group B - Pembrolizumab 200 mg plus Olaparib 300 mg BID, Group C (Pembrolizumab and Olaparib Matching Placebos) |
| Platinum, investigator's choiceCarboplatin titrated to an area under the plasma drug concentration time curve (AUC) of 5 mg/mL/min IV Q3W OR Cisplatin 75 mg/m^2 IV Q3W on Day 1 of each cycle | Drug | Group A - Pembrolizumab 200 mg, Group B - Pembrolizumab 200 mg plus Olaparib 300 mg BID, Group C (Pembrolizumab and Olaparib Matching Placebos) |
| Standard Thoracic RadiotherapyStandard Thoracic Radiotherapy | Radiation | Group A - Pembrolizumab 200 mg, Group B - Pembrolizumab 200 mg plus Olaparib 300 mg BID, Group C (Pembrolizumab and Olaparib Matching Placebos) |
| Prophylactic Cranial Irradiation (PCI)PCI will be strongly recommended for participants who achieve CR or PR after completion of chemoradiation treatment. | Radiation | Group A - Pembrolizumab 200 mg, Group B - Pembrolizumab 200 mg plus Olaparib 300 mg BID, Group C (Pembrolizumab and Olaparib Matching Placebos) |
Primary outcome
Overall Survival: the time from randomization to death due to any cause
Time frame: Up to approximately 82 months
Overall Survival (OS) is the time from randomization to death due to any cause.
19 secondary outcomes
Progression-free Survival Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1); the time from randomization to progression or death due to any cause, whichever occurs first
Time frame: Up to approximately 59 months
Number of Participants Experiencing an Adverse Events (AEs)
Time frame: Up to approximately 82 months
Number of Participants Discontinuing Study Treatment Due to Adverse Events (AEs)
Time frame: Up to approximately 82 months
Objective Response (OR): Complete Response (CR) or Partial Response (PR)
Time frame: Up to approximately 82 months
Duration of Response (DOR): the time from the earliest date of first documented evidence of confirmed CR or PR until the earliest date of disease progression or death from any cause, whichever comes first
Time frame: Up to approximately 82 months
Change from Baseline at Cycle 1 in European Organization for Research and Treatment (EORTC) Quality of Life Questionnaire-Core 30 (QLQ-C30) Global Health Status / Quality of Life (Items 29 & 30) Scale Score
Time frame: Baseline and 82 months post randomization
Change from Baseline at Cycle 1 in EORTC Quality of Life Questionnaire Lung Cancer Module 13 (QLQ-LC13) Cough (Item 1) Scale Score
Time frame: Baseline and 82 months post randomization
Change from Baseline at Cycle 1 in EORTC QLQ-LC13 Chest Pain (Item 10) Scale Score
Time frame: Baseline and 82 months post randomization
Change from Baseline at Cycle 1 in EORTC QLQ-C30 Dyspnea (Item 8) Scale Score
Time frame: Baseline and 82 months post randomization
Change from Baseline at Cycle 1 in EORTC QLQ-C30 Physical Functioning (Items 1 to 5) Scale Score
Time frame: Baseline and 82 months post randomization
Time to True Deterioration (TTD) in EORTC QLQ-C30 Global Health Status / Quality of Life (Items 29 & 30) Scale Score
Time frame: Up to approximately 82 months post randomization
Time to True Deterioration (TTD) in Cough (LC13/Item 1) Scale Score
Time frame: Up to approximately 82 months post randomization
Time to True Deterioration (TTD) in Chest Pain (LC13/Item 10) Scale Score
Time frame: Up to approximately 82 months post randomization
Time to True Deterioration (TTD) in EORTC QLQ-C30 Dyspnea (Item 8) Scale Score
Time frame: Up to approximately 82 months post randomization
Time to True Deterioration (TTD) in EORTC QLQ-C30 Physical Functioning (Items 1 to 5) Scale Score
Time frame: Up to approximately 82 months post randomization
Objective Response (OR, according to RECIST 1.1 by BICR) assessed by programmed cell death ligand 1 (PD-L1) expression levels
Time frame: Up to approximately 82 months
Duration of Response (DOR, according to RECIST 1.1 by BICR) assessed by programmed cell death ligand 1 (PD-L1) expression levels
Time frame: Up to approximately 82 months
Progression-free Survival (PFS, according to RECIST 1.1 by BICR) assessed by programmed cell death ligand 1 (PD-L1) expression levels
Time frame: Up to approximately 59 months
Overall Survival (OS) assessed by programmed cell death ligand 1 (PD-L1) expression levels
Time frame: Up to approximately 82 months
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Sep 2026.
- Derived from this study: PubMed 35613997Rimner A, Lai WV, Califano R, Jabbour SK, Rudin CM, Faivre-Finn C, Cho BC, Kato T, Yu J, Chafin W, Yu L, Zhao B, Byers L. Rationale and Design of the Phase 3 KEYLYNK-013 Study of Pembrolizumab With Concurrent Chemoradiotherapy Followed by Pembrolizumab With or Without Olaparib for Limited-Stage Small-Cell Lung Cancer. Clin Lung Cancer. 2022 Jul;23(5):e325-e329. doi: 10.1016/j.cllc.2022.04.005. Epub 2022 Apr 29.
- Merck Clinical Trials InformationLink provided by the sponsor.
- Individual participant dataSharing planned: Yes. https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf
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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.
Medical Director, MD study director
Merck Sharp & Dohme LLC
187 sites in 25 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Pembrolizumab 200 mg, Pembrolizumab 400 mg and Olaparib 300 mg BID in people with Small Cell Lung Cancer, run by Merck Sharp & Dohme LLC at 187 sites in 25 countries.
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 17 inclusion and 12 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: under way, not looking for participants, as of the sponsor's last update on 24 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 187 sites in United States, China, Japan, France, Italy and 20 more countries. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
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?
This study is still under way. Results are not available in the source record yet.
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?
Overall Survival: the time from randomization to death due to any cause (time frame: Up to approximately 82 months). 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 NCT04624204, 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 24 Sep 2026.