CYIR 2022 - ATS 2022 International Conference

 
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CYIR 2022 - ATS 2022 International Conference
CYIR
Clinical Year in Review   2022
2022

           Clinical Year in Review
           Bibliography
           MODERATORS
           Jose L. Gomez-Villalobos, MS, MD, ATSF
           Yale School of Medicine
           Department of Medicine, Pulmonary, Critical Care and Sleep Section
           New Haven, CT

           Rupal J. Shah, MD, MSCE
           University of California, San Francisco
           Department of Medicine
           Division of Pulmonary, Allergy, Critical Care and Sleep Medicine
           San Francisco, CA

           Juliana C. Ferreira, MD, PhD, ATSF
           University of Sao Paulo
           Pulmonary Division
           Sao Paulo, Brazil

           TABLE OF CONTENTS
           A1
           • Pulmonary Vascular Disease .................................................................. 4
           • Interstitial Lung Disease........................................................................... 9
           • Lung Cancer............................................................................................... 14
           • Pneumonia and Pulmonary Infections........................................... 19
           This session and the International Conference are supported by
           independent medical educational grants from Boehringer Ingelheim
           Pharmaceuticals, Inc.; Genentech, Inc.; and Merck & Co.

           B1
           • COPD .......................................................................................................... 23
           • Asthma ...................................................................................................... 27
           • Sleep Medicine......................................................................................... 32
           • Disparities in Pulmonary and Critical Care Disease.................. 37
           This session and the International Conference are supported by
           independent medical educational grants from Genentech, Inc.; and
           Merck & Co.

                                                         Table of contents continued on next page

1SECTION                                                                                                        Table of Contents
2022

          Clinical Year in Review
          Bibliography

          TABLE OF CONTENTS CONTINUED
          C1
          • General Critical Care ........................................................................... 40
          • Cystic Fibrosis ........................................................................................ 44
          • Sepsis..........................................................................................................48
          • Bronchiectasis......................................................................................... 55
          This session and the International Conference are supported by
          independent medical educational grants from Insmed Incorporated; and
          Vertex Pharmaceuticals.

          D1
          • Long COVID and Post-Intensive-Care Syndrome ....................... 58
          • Medical Education................................................................................. 64
          • Interventional Pulmonology...............................................................69
          • ARDS............................................................................................................ 74
          This session and the International Conference are supported by an
          independent medical educational grant from Merck & Co.

2
SECTION                                                                                                         Table of Contents
Clinical Year in Review

Pulmonary Vascular Disease
Belinda Rivera-Lebron, MD MSCE FCCP
University of Pittsburgh
Division of Pulmonary, Allergy and Critical Care Medicine
Pittsburgh, PA

COMBINATION THERAPY IN PULMONARY ARTERIAL                        categorized as WHO functional class III or IV, with
HYPERTENSION                                                     intermediate- to high-risk clinical features, and PVR
Chin KM, Sitbon O, Doelberg M, Feldman J, Gibbs JSR,             ≥ 6 Wood Units.
Grünig E, Hoeper MM, Martin N, Mathai SC, McLaughlin        3.   Upfront triple combination therapy did not improve
VV, Perchenet L, Poch D, Saggar R, Simonneau G, Galiè N.         the change in PVR at 26 weeks compared with dual
Three- Versus Two-Drug Therapy for Patients With                 combination therapy and had similar reductions
Newly Diagnosed Pulmonary Arterial Hypertension. J Am            improvements in NT-pro BNP and 6MWD.
Coll Cardiol. 2021 Oct 5;78(14):1393-1403. doi:             4.   Exploratory analysis suggested that triple therapy
10.1016/j.jacc.2021.07.057. PMID: 34593120.                      may decrease the risk for disease progression and
                                                                 first clinical events, such as hospitalizations for
Summary
                                                                 worsening PAH and death.
Randomized clinical trials have demonstrated that
                                                            5.   Although TRITON did not meet its primary endpoint,
combination therapy in incident or treatment-naïve
                                                                 it is unlikely to close the door on future randomized
patients with pulmonary arterial hypertension (PAH)
                                                                 clinical trials of initial triple combination therapy in
alleviates symptoms and improves exercise tolerance
                                                                 intermediate- to high-risk patients.
and clinical outcomes. However, the benefit of initial
triple over double therapy is less clear. TRITON, a
                                                            NEW THERAPIES IN PULMONARY ARTERIAL
multicenter, double-blind, randomized phase 3b study,
                                                            HYPERTENSION
evaluated initial triple (macitentan, tadalafil and
                                                            Humbert M, McLaughlin V, Gibbs JSR, Gomberg-Maitland
selexipag) versus initial double (macitentan, tadalafil
                                                            M, Hoeper MM, Preston IR, Souza R, Waxman A,
and placebo) in newly diagnosed, treatment naïve
                                                            Escribano Subias P, Feldman J, Meyer G, Montani D,
patients with PAH. The primary endpoint was change in
                                                            Olsson KM, Manimaran S, Barnes J, Linde PG, de Oliveira
pulmonary vascular resistance (PVR) at week 26. Both
                                                            Pena J, Badesch DB; PULSAR Trial Investigators.
treatment strategies reduced PVR compared with
                                                            Sotatercept for the Treatment of Pulmonary Arterial
baseline (by 54% and 52%, 95% CI 0.86-10.7, P=0.42). Six-
                                                            Hypertension. N Engl J Med. 2021 Apr 1;384(13):1204-1215.
minute walk distance (6MWD) and N-terminal pro-brain
                                                            doi: 10.1056/NEJMoa2024277. PMID: 33789009.
natriuretic peptide (BNP) improved, with no difference
between groups. Exploratory analysis suggested a signal
                                                            Summary
for reduced risk for disease progression in triple versus
                                                            Novel therapies are needed to attenuate disease
double therapy (HR 0.59, 95% CI 0.32-1.09). More
                                                            progression of PAH. Mutations in bone morphogenic
patients experienced side effects on triple versus
                                                            protein (BMP) receptor type 2 (BMPR2) play a role in the
double therapy.
                                                            pathogenesis of PAH. BMP is a member of the
Comments                                                    transforming growth-factor (TGF)-beta family.
1. TRITON is the first randomized, placebo-controlled,      Sotatercept is a first-in-class ligand trap for members
   head-to-head comparison, of initial triple oral          of TGF-beta and restores balance between growth-
   combination therapy versus double oral                   promoting and growth-inhibiting BMP pathways,
   combination therapy, in patients with newly              thereby having the potential to reverse the vascular
   diagnosed PAH.                                           remodeling in PAH. PULSAR, a multicenter, randomized,
2. Enrollment criteria ensured that patient population      double-blind, phase 2 trial, evaluated the safety and
   had moderate to severe disease, with the majority

Pulmonary Vascular Disease                                                                                                    4
Clinical Year in Review

efficacy of subcutaneous sotatercept versus placebo on      Summary
PAH patients who were receiving background therapy.         Most therapies approved for PAH that have been
Background therapy included monotherapy, double             studied in pulmonary hypertension from interstitial
therapy or triple therapy with combinations of              lung disease (PH-ILD) have shown inconsistent results,
phosphodiesterase-5 inhibitors, soluble guanylate           no significant benefit or even harm. INCREASE, a
cyclase stimulators, endothelin-receptor antagonists,       multicenter, randomized, double-blind, placebo-
prostacyclin analogues, or prostacyclin-receptor            controlled trial, studied the safety and efficacy of
agonists. Sotatercept at two doses (0.3mg/kg and            inhaled treprostinil in patients with PH-ILD. Most
0.7mg/kg) was associated with significantly greater         patients had idiopathic pulmonary fibrosis, connective
reduction in PVR from baseline to 24 weeks (least-          tissue disease-ILD or combined pulmonary fibrosis and
squares difference of -145 dyn/sec/cm-5, P=0.003 and -      emphysema. Pulmonary hypertension was established
239 dyn/sec/cm-5, P50% on triple therapy and >33%       group (HR 0.61, 95% CI 0.40-0.92, P=0.04). The most
   on prostacyclin infusion therapy).                       frequent adverse events were cough, headache,
3. Limitations of this trial were the relatively small      dyspnea, dizziness, nausea, fatigue and diarrhea, and
   sample size (106 patients), the lack of clinical         were similar in both groups. Lung function and
   outcomes such as mortality, and the short duration       oxygenation were not meaningfully affected.
   of follow-up.
4. A follow-up, phase 2 PULSAR, open-label extension        Comments
   interim results suggested that clinical efficacy is      1. INCREASE is the first clinical trial with a significant
   maintained across multiple endpoints for up to 48           impact in PH-ILD, showing an improvement of 31m
   weeks.                                                      (the minimal clinically important difference for
5. Ongoing phase 3 clinical trials will hopefully              6MWD in pulmonary diseases is approximately
   provide insight on clinical outcomes, such as time          30m).
   to clinical worsening, hospitalizations, and death.      2. No evidence of worsening oxygenation was seen,
                                                               which further allays historical concerns of
PULMONARY HYPERTENSION DUE TO INTERSTITIAL                     ventilation-perfusion mismatching in group 3 PH.
LUNG DISEASE                                                3. No significant difference in patient-reported quality
Waxman A, Restrepo-Jaramillo R, Thenappan T,                   of life, as assessed with the SGRQ, between groups.
Ravichandran A, Engel P, Bajwa A, Allen R, Feldman J,       4. Limitations of the trial included short duration,
Argula R, Smith P, Rollins K, Deng C, Peterson L, Bell H,      premature discontinuation (21%), and lack of
Tapson V, Nathan SD. Inhaled Treprostinil in Pulmonary         hemodynamic or echocardiographic outcomes.
Hypertension Due to Interstitial Lung Disease. N Engl J     5. Post-hoc analysis of the INCREASE data showed a
Med. 2021 Jan 28;384(4):325-334. doi:                          decrease in disease progression (defined as at least
10.1056/NEJMoa2008470. Epub 2021 Jan 13. PMID:                 15% decline in 6MWD, cardiopulmonary
33440084.                                                      hospitalization, lung transplantation, or death

Pulmonary Vascular Disease                                                                                                  5
Clinical Year in Review

    during the study and a at least a 10% decline in FVC    outpatient treatment over hospitalization provided
    and exacerbations of underlying lung disease).          access to medications, ability to access outpatient care
                                                            and home circumstances are adequate; 7) In acute VTE,
GUIDELINES FOR VENOUS THROMBOEMBOLIC DISEASE                recommend apixaban, dabigatran, edoxaban or
Stevens SM, Woller SC, Kreuziger LB, Bounameaux H,          rivaroxaban over VKA; 8) In acute VTE with associated
Doerschug K, Geersing GJ, Huisman MV, Kearon C, King        cancer, recommend apixaban, edoxaban or rivaroxaban
CS, Knighton AJ, Lake E, Murin S, Vintch JRE, Wells PS,     over LMWH; 9) In VTE with major or minor transient risk
Moores LK. Antithrombotic Therapy for VTE Disease:          factor, recommend against extended-phase
Second Update of the CHEST Guideline and Expert Panel       anticoagulation; 10) In VTE in the absence of transient
Report. Chest. 2021 Dec;160(6):e545-e608. doi:              provocation (unprovoked VTE or provoked by persistent
10.1016/j.chest.2021.07.055. Epub 2021 Aug 2. PMID:         risk factor), recommend extended-phase
34352278.                                                   anticoagulation.

Summary                                                     HEART FAILURE WITH PRESERVED EJECTION FRACTION
This is the 2nd update to the 9th edition of the CHEST      Anker SD, Butler J, Filippatos G, Ferreira JP, Bocchi E,
Antithrombotic Therapy for VTE guidelines. It is            Böhm M, Brunner-La Rocca HP, Choi DJ, Chopra V,
endorsed by other important societies. Experts followed     Chuquiure-Valenzuela E, Giannetti N, Gomez-Mesa JE,
a PICO (Population, Intervention, Comparator, Outcome)      Janssens S, Januzzi JL, Gonzalez-Juanatey JR, Merkely B,
framework. Strong or weak recommendations were              Nicholls SJ, Perrone SV, Piña IL, Ponikowski P, Senni M,
generated based on high-, moderate-, and low-certainty      Sim D, Spinar J, Squire I, Taddei S, Tsutsui H, Verma S,
evidence, using GRADE (Grading of Recommendations,          Vinereanu D, Zhang J, Carson P, Lam CSP, Marx N, Zeller
Assessment, Development, and Evaluation)                    C, Sattar N, Jamal W, Schnaidt S, Schnee JM, Brueckmann
methodology. The expert panel generated 29 guideline        M, Pocock SJ, Zannad F, Packer M; EMPEROR-Preserved
statements, 13 of which are graded as strong                Trial Investigators. Empagliflozin in Heart Failure with a
recommendations, covering decision to treat,                Preserved Ejection Fraction. N Engl J Med. 2021 Oct
interventional treatments, initiation phase, treatment      14;385(16):1451-1461. doi: 10.1056/NEJMoa2107038. Epub
phase, extended phase, and complications of VTE. Key        2021 Aug 27. PMID: 34449189.
recommendations included: 1) In acute PE associated
with hypotension (SBP < 90 mm Hg) without a high            Summary
bleeding risk, recommend treatment with systemic            Treatment options for patients with heart failure with
thrombolysis; 2) In acute PE who deteriorate (decrease      preserved ejection fraction (HFpEF) are limited. Sodium
in SBP, increase in HR, worsening gas exchange, signs of    glucose cotransporter 2 (SGLT2) inhibitors have been
inadequate perfusion, worsening right ventricular           shown to reduce heart failure progression in patients
function, or increasing cardiac biomarkers) after           with a reduced ejection fraction, but the effect in HFpEF
starting anticoagulation but have yet to develop            are unclear. EMPEROR-Preserved, a multicenter, double-
hypotension and have acceptable bleeding risk,              blind, randomized, placebo-controlled trial examined
recommend treatment with systemic thrombolysis; 3) In       the effects of the SGLT2 inhibitor empagliflozin in 5988
acute PE associated with hypotension with a high            HFpEF patients with NYHA FC II-IV chronic heart failure
bleeding risk, failed systemic thrombolysis or shock that   and a left ventricular ejection fraction > 40%. The
is likely to cause death before systemic thrombolysis       primary outcome was a composite of cardiovascular
can take effect, if appropriate expertise and resources     death or hospitalization for heart failure. During a
are available, recommend treatment with catheter-           median follow up of 26 months, a primary composite
assisted thrombus removal; 4) In acute DVT of the leg       outcome event occurred significantly less in the
tolerating anticoagulation, recommend against the use       empagliflozin group than in the placebo (HR 0.79, 95% CI
of an IVC filter; 5) In acute proximal DVT of the leg and   0.69-0.90, P
Clinical Year in Review

appeared similar in patients with and without diabetes.   Hoeper MM, Al-Hiti H, Benza RL, Chang SA, Corris PA,
Uncomplicated genital and urinary tract infections and    Gibbs JSR, Grünig E, Jansa P, Klinger JR, Langleben D,
hypotension were more common in empagliflozin.            McLaughlin VV, Meyer GMB, Ota-Arakaki J, Peacock AJ,
                                                          Pulido T, Rosenkranz S, Vizza CD, Vonk-Noordegraaf A,
Comments                                                  White RJ, Chang M, Kleinjung F, Meier C, Paraschin K,
1. Although SGLT2 inhibitors were introduced as type 2    Ghofrani HA, Simonneau G; REPLACE investigators.
   diabetes medications, results of several RCT           Switching to riociguat versus maintenance therapy with
   indicate a clear benefit in heart failure              phosphodiesterase-5 inhibitors in patients with
   management, though the exact mechanism of              pulmonary arterial hypertension (REPLACE): a
   benefit is unclear.                                    multicentre, open-label, randomised controlled trial.
2. EMPEROR-Preserved demonstrated that                    Lancet Respir Med. 2021 Jun;9(6):573-584. doi:
   empagliflozin improves heart failure outcomes in       10.1016/S2213-2600(20)30532-4. Epub 2021 Mar 24. PMID:
   patients with HFpEF and EF > 40%, irrespective of      33773120.
   diabetes status.
3. Benefit is primarily driven by a reduction in heart    Grünig E, MacKenzie A, Peacock AJ, Eichstaedt CA,
   failure hospitalizations, not mortality.               Benjamin N, Nechwatal R, Ulrich S, Saxer S, Bussotti M,
4. Empagliflozin also slowed down the rate of decline     Sommaruga M, Ghio S, Gumbiene L, Palevičiūtė E,
   in the eGFR and improved quality of life, as           Jurevičienė E, Cittadini A, Stanziola AA, Marra AM, Kovacs
   assessed with KCCQ.                                    G, Olschewski H, Barberà JA, Blanco I, Spruit MA,
5. Limitations of the trial included premature            Franssen FME, Vonk Noordegraaf A, Reis A, Santos M,
   discontinuation (23%).                                 Viamonte SG, Demeyer H, Delcroix M, Bossone E,
                                                          Johnson M. Standardized exercise training is feasible,
Other Articles of Interest                                safe, and effective in pulmonary arterial and chronic
                                                          thromboembolic pulmonary hypertension: results from
Pulmonary Hypertension                                    a large European multicentre randomized controlled
Pi H, Kosanovich CM, Handen A, Tao M, Visina J,           trial. Eur Heart J. 2021 Jun 14;42(23):2284-2295. doi:
Vanspeybroeck G, Simon MA, Risbano MG, Desai A,           10.1093/eurheartj/ehaa696. PMID: 33232470.
Mathier MA, Rivera-Lebron BN, Nguyen Q, Kliner J,
Nouraie M, Chan SY. Outcomes of Pulmonary Arterial        Pulmonary Embolism
Hypertension Are Improved in a Specialty Care Center.     Jaureguízar A, Jiménez D, Bikdeli B, Ruiz-Artacho P,
Chest. 2020 Jul;158(1):330-340. doi:                      Muriel A, Tapson V, López-Reyes R, Valero B, Kenet G,
10.1016/j.chest.2020.01.046. Epub 2020 Feb 25. PMID:      Monreal M; Registro Informatizado de la Enfermedad
32109446; PMCID: PMC7339236.                              TromboEmbólica Investigators. Heart Rate and Mortality
                                                          in Patients With Acute Symptomatic Pulmonary
Guth S, D'Armini AM, Delcroix M, Nakayama K, Fadel E,     Embolism. Chest. 2022 Feb;161(2):524-534. doi:
Hoole SP, Jenkins DP, Kiely DG, Kim NH, Lang IM, Madani   10.1016/j.chest.2021.08.059. Epub 2021 Aug 31. PMID:
MM, Matsubara H, Ogawa A, Ota-Arakaki JS, Quarck R,       34478718.
Sadushi-Kolici R, Simonneau G, Wiedenroth CB, Yildizeli
B, Mayer E, Pepke-Zaba J. Current strategies for          Lim P, Delmas C, Sanchez O, Meneveau N, Rosario R,
managing chronic thromboembolic pulmonary                 Bouvaist H, Bernard A, Mansourati J, Couturaud F,
hypertension: results of the worldwide prospective        Sebbane M, Coste P, Rohel G, Tardy B, Biendel C, Lairez
CTEPH Registry. ERJ Open Res. 2021 Aug 16;7(3):00850-     O, Ivanes F, Gallet R, Dubois-Rande JL, Fard D, Chatelier
2020. doi: 10.1183/23120541.00850-2020. PMID: 34409094;   G, Simon T, Paul M, Natella PA, Layese R, Bastuji-Garin S.
PMCID: PMC8365143.                                        Diuretic vs. placebo in intermediate-risk acute
                                                          pulmonary embolism: a randomized clinical trial. Eur
                                                          Heart J Acute Cardiovasc Care. 2022 Jan 12;11(1):2-9. doi:
                                                          10.1093/ehjacc/zuab082. PMID: 34632490.

Pulmonary Vascular Disease                                                                                                7
Clinical Year in Review

D'Auria S, Sezer A, Thoma F, Sharbaugh M, McKibben J,          Angel W, Sarosi MG, Qaqi O, Veerina K, Brown MA, Pollak
Maholic R, Avgerinos ED, Rivera-Lebron BN, Toma C.             JS. Percutaneous mechanical thrombectomy in a real-
Outcomes of catheter-directed thrombolysis vs.                 world pulmonary embolism population: Interim results
standard medical therapy in patients with acute                of the FLASH registry. Catheter Cardiovasc Interv. 2022
submassive pulmonary embolism. Pulm Circ. 2020 Apr             Feb 3. doi: 10.1002/ccd.30091. Epub ahead of print. PMID:
8;10(1):2045894019898368. doi:                                 35114059.
10.1177/2045894019898368. PMID: 32292583; PMCID:
PMC7144676.                                                    Klok FA, Ageno W, Ay C, Bäck M, Barco S, Bertoletti L,
                                                               Becattini C, Carlsen J, Delcroix M, van Es N, Huisman MV,
Avgerinos ED, Jaber W, Lacomis J, Markel K, McDaniel M,        Jara-Palomares L, Konstantinides S, Lang I, Meyer G, Ní
Rivera-Lebron BN, Ross CB, Sechrist J, Toma C, Chaer R;        Áinle F, Rosenkranz S, Pruszczyk P. Optimal follow-up
SUNSET sPE Collaborators. Randomized Trial Comparing           after acute pulmonary embolism: a position paper of
Standard Versus Ultrasound-Assisted Thrombolysis for           the European Society of Cardiology Working Group on
Submassive Pulmonary Embolism: The SUNSET sPE Trial.           Pulmonary Circulation and Right Ventricular Function, in
JACC Cardiovasc Interv. 2021 Jun 28;14(12):1364-1373. doi:     collaboration with the European Society of Cardiology
10.1016/j.jcin.2021.04.049. Erratum in: JACC Cardiovasc        Working Group on Atherosclerosis and Vascular Biology,
Interv. 2021 Oct 11;14(19):2194. PMID: 34167677.               endorsed by the European Respiratory Society. Eur
                                                               Heart J. 2022 Jan 25;43(3):183-189. doi:
Barco S, Schmidtmann I, Ageno W, Bauersachs RM,                10.1093/eurheartj/ehab816. PMID: 34875048; PMCID:
Becattini C, Bernardi E, Beyer-Westendorf J, Bonacchini        PMC8790766.
L, Brachmann J, Christ M, Czihal M, Duerschmied D,
Empen K, Espinola-Klein C, Ficker JH, Fonseca C, Genth-        COVID VTE
Zotz S, Jiménez D, Harjola VP, Held M, Iogna Prat L,           ATTACC Investigators; ACTIV-4a Investigators; REMAP-
Lange TJ, Manolis A, Meyer A, Mustonen P, Rauch-               CAP Investigators. Therapeutic Anticoagulation with
Kroehnert U, Ruiz-Artacho P, Schellong S, Schwaiblmair         Heparin in Noncritically Ill Patients with Covid-19. N
M, Stahrenberg R, Westerweel PE, Wild PS,                      Engl J Med. 2021 Aug 26;385(9):790-802. doi:
Konstantinides SV, Lankeit M; HoT-PE Investigators. Early      10.1056/NEJMoa2105911. Epub 2021 Aug 4. PMID: 34351721;
discharge and home treatment of patients with low-risk         PMCID: PMC8362594.
pulmonary embolism with the oral factor Xa inhibitor
rivaroxaban: an international multicentre single-arm           REMAP-CAP Investigators; ACTIV-4a Investigators;
clinical trial. Eur Heart J. 2020 Jan 21;41(4):509-518. doi:   ATTACC Investigators. Therapeutic Anticoagulation with
10.1093/eurheartj/ehz367. PMID: 31120118.                      Heparin in Critically Ill Patients with Covid-19. N Engl J
                                                               Med. 2021 Aug 26;385(9):777-789. doi:
Rali P, Sacher D, Rivera-Lebron B, Rosovsky R, Elwing JM,      10.1056/NEJMoa2103417. Epub 2021 Aug 4. PMID: 34351722;
Berkowitz J, Mina B, Dalal B, Davis GA, Dudzinski DM,          PMCID: PMC8362592.
Duval A, Ichinose E, Kabrhel C, Kapoor A, Lio KU,
Lookstein R, McDaniel M, Melamed R, Naydenov S,                Stevens SM, Woller SC, Kreuziger LB, Bounameaux H,
Sokolow S, Rosenfield K, Tapson V, Bossone E, Keeling B,       Doerschug K, Geersing GJ, Huisman MV, Kearon C, King
Channick R, Ross CB. Interhospital Transfer of Patients        CS, Knighton AJ, Lake E, Murin S, Vintch JRE, Wells PS,
With Acute Pulmonary Embolism: Challenges and                  Moores LK. Antithrombotic Therapy for VTE Disease:
Opportunities. Chest. 2021 Nov;160(5):1844-1852. doi:          Second Update of the CHEST Guideline and Expert Panel
10.1016/j.chest.2021.07.013. Epub 2021 Jul 14. PMID:           Report. Chest. 2021 Dec;160(6):e545-e608. doi:
34273391.                                                      10.1016/j.chest.2021.07.055. Epub 2021 Aug 2. PMID:
                                                               34352278.
Toma C, Bunte MC, Cho KH, Jaber WA, Chambers J,
Stegman B, Gondi S, Leung DA, Savin M, Khandhar S,
Kado H, Koenig G, Weinberg M, Beasley RE, Roberts J,

Pulmonary Vascular Disease                                                                                                     8
Clinical Year in Review

Interstitial Lung Disease
Rupal Shah, MD MS
University of California, San Francisco
Department of Medicine
San Francisco, CA

DIAGNOSIS OF UIP                                             2.   Authors demonstrated that both pulmonologists
Nandy S, Raphaely RA, Muniappan A, Shih, A, Roop BW               and interpreting pathologists can be easily trained
et al Diagnostic Accuracy of Endobronchial Optical                in this new diagnostic procedure.
Coherence Tomography for the Microscopic Diagnosis of        3.   There was excellent sensitivity and specificity for
Usual Interstitial Pneumonia. Am J Respir Crit Care Med.          UIP and the clinical correlate, IPF.
2021 Nov 15;204(10):1164-1179. doi: 10.1164/rccm.202104-     4.   Future studies should further evaluate the role of
0847OC.                                                           EB-OCT in a larger patient population, including
                                                                  non-UIP pattern ILD.
Summary
Diagnostic evaluation of patients with interstitial lung     TREATMENT OF IPF EXACERBATION
disease continues to be challenging, particularly in         Naccache JM, Jouneau S, Didier M, Borie R, Cachando M,
patients who may be high risk for surgical lung biopsy.      Bourdin A et al. Cyclophosphamide added to
Nandy et al evaluates the role of endobronchial optical      glucocorticoids in acute exacerbation of idiopathic
coherence tomography (EB-OCT), a technique that              pulmonary fibrosis (EXAFIP): a randomized double-blind
allows imaging of the lung via a bronchoscope, for           placebo-controlled, phase 3 trial. Lancet Respiratory
diagnosis of IPF. They enrolled 27 patients with             Medicine 2022; 10:26-34
unclassifiable ILD who were undergoing lung (surgical
or transbronchial) biopsy for diagnosis. Prior to biopsy,    Summary
they performed EB-OCT on at least 4 regions of interest,     The role of systemic immunosuppression in
including subpleural lung, which were chosen based on        exacerbations of IPF is unclear. This randomized
imaging findings. Images were interpreted by a trained       controlled trial of cyclophosphamide added to
ILD pathologist, who was blinded to biopsy findings.         glucocorticoids vs. glucocorticoids alone included 120
Patients had mild-moderate disease (average FVC 76%          patients with exacerbations of IPF. Patients receiving
predicted and DLCO 54% predicted). The average               mechanical ventilation, with an active infection, cancer,
bronchoscopy time for EB-OCT was 9.5 minutes (SD 4.22        or awaiting lung transplant were excluded. All
min). EB-OCT had a sensitivity and specificity of 100%       participants received methylprednisolone 10mg/kg/day
for identifying histopathologic UIP pattern, using a gold    x 3 days with a taper, and those in cyclophosphamide
standard of biopsy tissue (1 transbronchial, 26 surgical).   arm received a dose of 600mg/m2 and umitrexan (to
The kappa between EB-OCT diagnoses and surgical lung         prevent hemorrhagic cystitis) on days 0, 15, 30 and 60.
biopsy diagnosis was also high (k=0.87) in non UIP           Mortality at 3 months was 45% in the cyclophosphamide
patterns, although study was not powered to evaluate         group and 31% in the placebo arm (p=0.10) and there
sensitivity and specificity of non-UIP patterns. There       was no difference in mortality at 1 year. The risk of
were no adverse events during the EB-OCT.                    death at 3 months was higher with severe IPF and lower
                                                             with baseline antifibrotic therapy, regardless of
Comments                                                     treatment arm. There was no significant difference in
1. EB-OCT may represent a minimally invasive and             adverse events, including infections, between the
   safe way to differentiate between histopathologic         groups. In conclusion, there was no benefit to the
   patterns of ILD                                           addition of cyclophosphamide to high dose
                                                             glucocorticoids in IPF exacerbation.

Interstitial Lung Disease                                                                                                    9
Clinical Year in Review

Comments                                                          matched controls without chronic lung disease
1. This study demonstrates that it is feasible to                 early in the pandemic.
   conduct randomized controlled trials in the IPF           2.   Authors found that male sex and obesity
   exacerbation population                                        significantly increased risk of death in the ILD
2. Mortality after IPF exacerbation is high, and                  population.
   addition of cyclophosphamide to high dose                 3.   Given the high mortality of COVID-19 in ILD patients,
   glucocorticoids had no benefit on outcomes                     it is extremely important that ILD patients receive
3. Antifibrotic therapy prior to exacerbation was                 vaccinations and boosters and have access to
   associated with a lower risk of death.                         antiviral medications
4. Future study should evaluate the utility of               4.   Further work is needed on outcomes of COVD-19 in
   glucocorticoids in IPF exacerbation.                           patients with ILD after vaccinations and widespread
                                                                  use of antiviral agents, as well as long-term
COVID-19 IN PATIENTS WITH ILD                                     morbidity and mortality outcomes for those who
Drake TM, Docherty AB, Harrison EM, Quint JK, Adamali             survive COVID-19 infection.
H, Agnew S, Baby S et al Outcome of Hospitalization for
COVID-19 in Patients with Interstitial Lung Disease. An      TREATMENT OF IPF
International Multicenter Study. Am J Respir Crit Care       Martinez FJ, Yow E, Flaherty KR et al Effect of
Med. 2020 Dec 15;202(12):1656-1665. doi:                     Antimicrobial Therapy on Respiratory Hospitalization or
10.1164/rccm.202007-2794OC.                                  Death in Adults With Idiopathic Pulmonary Fibrosis: The
                                                             Clean UP-IPF Randomized Clinical Trial. JAMA.
Summary                                                      2021;325(18):1841-1851. doi:10.1001/jama.2021.4956
 Using a retrospective cohort design, authors evaluated
                                                             Summary
outcomes of COVID-19 in patients with ILD early in the
                                                             This is a pragmatic, randomized, unblinded clinical trial
pandemic (March-May 2020). The authors utilized a 2:1
                                                             to evaluate whether the use of antibiotics reduces the
propensity score matching scheme to identify 322
                                                             risk of respiratory hospitalization or death in patients
patients hospitalized for COVID-19 during that time
                                                             with IPF. 513 patients were enrolled. Patients and
without respiratory comorbidities and matched them to
                                                             treating physicians were allowed to express a
161 patients with ILD hospitalized for COVID-19. ILD was
                                                             preference for antibiotic prior to enrollment. 272 chose
associated with a higher risk of death from COVID-19
                                                             trimethoprim/sulfamethoxazole plus folic acid, of which
(HR 1.6, 95% CI: 1.17-2.18, p=0.003). Of ILD sub-types,
                                                             128 received the drug and 114 received usual care. 241
patients with IPF had the highest mortality (HR 1.74, 95%
                                                             patients chose doxycycline, of which 126 received the
CI: 1.16-2.60, p=0.007). Obesity with ILD had an increased
                                                             drug and 115 were randomized to usual care. There was
hazard of death compared to obesity alone (HR 2.27,
                                                             no placebo drug. Treatment groups were well matched
95% CI 1.39-3.71, p=0.001) as did male sex (adjusted HR
                                                             on clinical characteristics. At the first planned efficacy
for age and comorbidity: HR 1.98, 95% CI 1.14-3.43,
                                                             analysis (300 patients with 12 months of follow up), the
p=0.015). Patients with lower lung function (FVC
Clinical Year in Review

Comments                                                   Comments
1. This study demonstrates the feasibility of a            1. This RCT of nebulized cromolyn sodium (RVT-1601)
   pragmatic, open label approach to clinical trials in       did not show an impact on objective measures of
   the IPF population.                                        cough.
2. There was no difference in outcomes in patients         2. Study was terminated early because of the COVID-
   treated with antimicrobials compared to those who          19 pandemic and did not meet enrollment goal
   underwent usual care                                    3. There were an increased number of adverse events
3. Further work on the role of antimicrobial therapy in       in the treatment arm, including deaths, but analysis
   IPF is needed.                                             by an external safety monitor did not conclude
                                                              there was significant harm from the study drug.
TREATMENT OF COUGH IN IPF                                  4. This study highlights the importance of studying
Martinez FJ, Wijsenbeek MS, Raghu G, Flaherty KR, Maher       chronic cough in IPF as it is one of the most
TM et al Phase 2b Study of Inhaled RVT-1601 for Chronic       debilitating symptoms of IPF.
Cough in Idiopathic Pulmonary Fibrosis: SCENIC Trial:
Multi-Center, Randomized, Placebo-Controlled Study.        TREATMENT OF IPF
Am J Respir Crit Care Med. 2022 Jan 20. doi:               Dempsey, TM, Payne S, Sangaralingham L, Yao X, Shah
10.1164/rccm.202106-1485OC. Online ahead of print          ND, Limper AH. Adoption of the Antifibrotic Medications
                                                           Pirfenidone and Nintedanib for Patients with Idiopathic
Summary                                                    Pulmonary Fibrosis. Ann Am Thorac Soc. 2021
Chronic cough is one of the most disabling symptoms in     Jul;18(7):1121-1128. doi: 10.1513/AnnalsATS.202007-901OC.
ILD with few effective treatments. This multicenter,
                                                           Summary
randomized, placebo-controlled phase 2b trial
                                                           This study evaluated the adoption, treatment duration,
evaluated the efficacy and safety of RVT-1601 (nebulized
                                                           and cost of nintedanib and pirfenidone in patients with
cromolyn sodium) for treatment of chronic cough in
                                                           IPF. The authors used a database with deidentified
patients with IPF. Patients were enrolled who had IPF
                                                           administrative claims data for patients enrolled in
with significant cough and FVC > 45% predicted. Patients
                                                           private and Medicare Advantage health plans, using ICD
were randomly assigned to receive study drug (10mg,
                                                           codes to identify IPF. Codes were validated in a local
40mg, or 80mg) or placebo, nebulized three times per
                                                           cohort by chart and imaging review. Adult patients who
day. The study duration was 12 weeks with a 12 week
                                                           filled a prescription for pirfenidone or nintedanib
open label extension. The primary outcome was least
                                                           between 10/1/14 and 7/31/19 and had IPF diagnosis
squares mean change in 24-hour average cough count.
                                                           code were included. 8,095 of 10,996 patients (74%) with
Enrollment was stopped after 108 patients due to
                                                           IPF were not on treatment. There were equal numbers
pandemic (goal 180), and 61% of patients completed the
                                                           on pirfenidone (13.2%) and nintedanib (13.2%) in the
study. Adherence was high, and demographics of
                                                           treated patients. Treated patients were younger (72 vs.
placebo and treatment arms were similar. There was no
                                                           73.9, p
Clinical Year in Review

Comments                                                    Khanna D, Lin CJF, Furst DE, Wagner B, Zucchetto M,
1. Adoption of antifibrotics is low in a retrospective      Raghu G, Martinez FJ, Goldin J Siegel J, Denton CP et al.
   cohort study using insurance claims data with rates      Long-Term Safety and Efficacy of Tocilizumab in Early
   remaining at 21% in 2019, with no difference in          Systemic Sclerosis-Interstitial Lung Disease: Open Lab
   prescribing patterns between nintedanib and              Extension of a Phase 3 Randomized Controlled Trial Am
   pirfenidone.                                             J Respir Crit Care Med. 2022 Mar 15;205(6):674-684. doi:
2. The average duration of treatment was 302 days,          10.1164/rccm.202103-0714OC.
   which was not attributable to patient mortality as
   the average time between treatment end and death         Lok SD, Wong AW, Khor YH, Ryerson CJ, Johannson KA;
   was 505 days                                             CARE-PF Investigators. Malignancy Risk Associated With
3. The annual cost of pirfenidone and nintedanib is         Mycophenolate Mofetil or Azathioprine in Patients With
   over $100,000 with about $400/month in out of            Fibrotic Interstitial Lung Disease. Chest. 2021 Dec
   pocket costs for patients                                16:S0012-3692(21)05085-6. doi: 10.1016/j.chest.2021.12.636.
4. 52% of untreated patients in this cohort did not see     Epub ahead of print. PMID: 34921905.
   a pulmonologist.
                                                            Swaminatha A, Hellkamp AS, Neely ML, Bender S,
5. Use of insurance claims data is a limitation,
                                                            Paoletti L et al Disparities in Lung Transplant among
   however, this study provides important information
                                                            Patients with Idiopathic Pulmonary Fibrosis: An Analysis
   on real world prescribing practices of antifibrotic
                                                            of the IPF-PRO Registry Ann Am Thorac Soc. 2022 Jan 24.
   medications.
                                                            doi: 10.1513/AnnalsATS.202105-589OC. Online ahead of
                                                            print.
OTHER ARTICLES OF INTEREST
                                                            Tomassetti S, Ravagli C, Puglisi S, Ryu JH, Colby TV et al
Diagnosis of ILD
                                                            Impact of Lung Biopsy Information on Treatment
Hunninghake GM, Goldin JG, Kadoch MA, Kropski JA,           Strategy of Patients with Interstitial Lung Disease Ann
Rosas IO, et al. Detection and Early Referral of Patients   Am Thorac Soc. 2021 Nov 5. doi:
With Interstitial Lung Abnormalities: An Expert Survey      10.1513/AnnalsATS.202104-466OC. Online ahead of print
Initiative. Chest. 2022 Feb;161(2):470-482. doi:
                                                            Waxman, A, Restrepo-Jaramillo R, Thenappan T,
10.1016/j.chest.2021.06.035. Epub 2021 Jun 29.
                                                            Ravichandran A, Engel P et al Inhaled Treprostinil in
Teoh AKY, Holland AE, Morisset J, Flaherty KR et al         Pulmonary Hypertension Due to Interstitial Lung
Essential Features of an ILD Multidisciplinary Meeting:     Disease N Engl J Med 2021; 384:325-334
An International Dephi Survey Ann Am Thorac Soc. 2022       DOI: 10.1056/NEJMoa2008470 *Discussed in the
Jan;19(1):66-73. doi: 10.1513/AnnalsATS.202011-1421OC.      Pulmonary Hypertension Year in Review

Treatment of ILD                                            Outcomes of ILD

Assayag D, Garlick K, Johannson KA, Fell CD, Kolb et al     Cutting CC, Bowman WS, Dao N, Pugashetti JV, Garcia CK,
Treatment Initiation in Patients with ILD in Canada Ann     Oldham JM, Newton CA. Family History of Pulmonary
Am Thorac Soc. 2021 Oct;18(10):1661-1668. doi:              Fibrosis Predicts Worse Survival in Patients With
10.1513/AnnalsATS.202009-1122OC.                            Interstitial Lung Disease. Chest. 2021 05; 159(5):1913-1921.

Behr JB, Prasse A, Kreuter M, Johow J, Rabe KF, Bonella F   Johannson KA, Lethebe BC, Assaya D, Fisher, JH, Kolb M
et al Pirfenidone in patients with progressive fibrotic     et al Travel Distance to Subspecialty Clinic and
ILD other than IPF (RELIEF): a double-blind, randomized,    Outcomes in Patients with Fibrotic Interstitial Lung
placebo-controlled, phase 2b trial. Lancet Respir Med.      Disease Ann Am Thorac Soc. 2022 Jan;19(1):20-27. doi:
2021 May;9(5):476-486. doi: 10.1016/S2213-2600(20)30554-    10.1513/AnnalsATS.202102-216OC.
3. Epub 2021 Mar 30.

Interstitial Lung Disease                                                                                                12
Clinical Year in Review

Kaul B, Lee JS, Zhang N, Vittinghoff E, Sarmiento K et al     COVID 19 in ILD
Epidemiology of Idiopathic Pulmonary Fibrosis among
US Veterans, 2010-2019. Ann Am Thorac Soc. 2022               Lee H, Choi H, Yang B, Lee S, Park TS, Park DW, et al
Feb;19(2):196-203. doi: 10.1513/AnnalsATS.202103-295OC.       Interstitial lung disease increases susceptibility to and
                                                              severity of COVID-19 ERJ 2021; 58(6) PMID: 33888524
Nasser M, Larrieu S, Si-Mohamed S, Ahma K, Boussel L
Progressive fibrosing interstitial lung disease: a clinical   Myall KJ, Mukherjee B, Catanheira AM, Lam JL, Benedetti
cohort (the PROGRESS study) ERJ 2021 Feb 11;57 (2):           G et al Persistent Post-COVID-19 Interstitial Lung
2002718                                                       Disease. An Observational Study of Corticosteroid
                                                              Treatment. AATS 2021 May; 18(5).
Oldham JM, Lee CT, Wu Z, Bowman WS, Vu Pugashetti J,
et al. Lung function trajectory in progressive fibrosing      Wild JM, Porter JC, Molyneaux PL, George PM, Stewart I,
interstitial lung disease. Eur Respir J. 2021 Nov 04.         et al. Understanding the burden of interstitial lung
                                                              disease post-COVID-19: the UK Interstitial Lung Disease-
Simpson T, Barratt SL, Beirne P, Chaudhuri N, Crawhsaw        Long COVID Study (UKILD-Long COVID). BMJ Open Respir
A et al The Burden of Progressive Fibrotic Interstitial       Res. 2021 Sep;8(1):e001049. doi: 10.1136/bmjresp-2021-
Lung Disease Across the UK ERJ 2021 Jul 8;58                  001049. PMID: 34556492; PMCID: PMC8461362.

Interstitial Lung Disease                                                                                                 13
Clinical Year in Review

Lung Cancer
Neal Navani, MA (Cantab.), MBBS, MSc, PhD, FRCP
University College London Hospital
Department of Thoracic Medicine
London, United Kingdom

LUNG CANCER SCREENING                                       2.   This study is an improvement over the analyses
Meza R, Jeon J, Toumazis I, Ten Haaf K, Cao P, Bastani M,        conducted in 2013 because the new risk factor–
Han SS, Blom EF, Jonas DE, Feuer EJ, Plevritis SK, de            based strategy considers both lung cancer deaths
Koning HJ, Kong CY. Evaluation of the Benefits and               averted as well as life-years gained and applies
Harms of Lung Cancer Screening With Low-Dose                     them to a 1960 cohort which is more similar to
Computed Tomography: Modeling Study for the US                   current population.
Preventive Services Task Force. JAMA 2021 Mar               3.   Compared to the 2013 criteria, the 2021 criteria are
9;325(10):988-997.                                               estimated to increase screening eligibility with a
                                                                 greater reduction in mortality and more life-years
Summary                                                          gained.
Meza et al used 4 lung cancer simulation models that        4.   Full uptake and adherence were assumed for all
predict age- and sex-specific lung cancer incidence and          scenarios in the evaluation while in practice, uptake
mortality according to an individual’s smoking history,          is much lower e.g. 6-18%
to assess the benefits and harms of lung cancer
screening using 2 different screening strategies. The       LUNG CANCER RISK FACTORS
first screening strategy was based on risk factors and      Myers R, Brauer M, Dummer T, Atkar-Khattra S, Yee J,
used criteria similar to the 2013 recommendation            Melosky B, Ho C, McGuire AL, Sun S, Grant K, Lee A, Lee
criteria. The second, a risk model–based strategy,          M, Yuchi W, Tammemagi M, Lam S. High-Ambient Air
evaluated eligibility criteria based on 3 multivariable     Pollution Exposure Among Never Smokers Versus Ever
risk prediction models to estimate lung cancer risk. The    Smokers With Lung Cancer. J Thorac Oncol. 2021
models were simplified to incorporate only smoking          Nov;16(11):1850-1858.
history, sex, and age but excluded other risk variables
such as race, ethnicity, chronic obstructive pulmonary      Summary
disease, family history, and personal history of cancer.    The proportion of patients with lung cancer who have
Using these 2 strategies, Meza and colleagues identified    never smoked is increasing in Asian countries and lung
a set of screening criteria estimated to be associated      cancer in never smokers is now the 7th leading cause of
with a reduction in lung cancer mortality and an            cancer death worldwide in both sexes. This case series
increase in life-years gained. The risk factor–based        study compared the air pollution exposure in never
strategy identified as efficient was an approach that       smokers with lung cancer versus ever smokers with lung
included beginning screening at age 50 or 55 years and      cancer, adjusting for sex, race/ethnicity, and additional
stopping at age 80 years, with 20 pack-year smoking         factors. Patients were prospectively recruited from 2017-
intensity minimum.                                          2019 in Vancouver. Street and city address or postal
                                                            codes allow accurate linking of residential locations to
Comments                                                    satellite derived PM2.5 exposure data that were
1. This study supports the new 2021 USPSTF                  available from 1996 onward. Household exposure was
   recommendation of “annual screening for lung             obtained by questionnaire. In multivariable logistic
   cancer with LDCT [low-dose CT] in adults aged 50 to      regression analysis, there was a significant association
   80 years who have a 20 pack-year smoking history         with never-smoker lung cancer and being female (OR
   and currently smoke or have quit within the past 15      4.01), Asian (OR 6.48) and greater exposure to air
   years.”

Lung Cancer                                                                                                             14
Clinical Year in Review

pollution (OR 1.79). Exposure to ambient air pollution      rib spreading. The primary outcome was physical
should be considered when evaluating risk for               function at 5 weeks as a measure of recovery using the
developing lung cancer.                                     European Organization for Research and Treatment of
                                                            Cancer core health-related quality of life questionnaire
Comments                                                    (QLQ-C30). For this primary endpoint, participants
1. In this study, compared with ever smokers with lung      allocated to VATS had significantly better physical
   cancer, never smokers with lung cancer were more         functioning at 5 weeks (median score 73 vs 67 in open
   likely females who were significantly younger with       surgery group) and those undergoing VATS had less
   adenocarcinoma, more frequently East Asian, better       pain. Median length of stay was 1 day shorter for the
   educated, less likely to have COPD or a family           VATS group (4 days vs 5 days for the open group).
   history of lung cancer, and had higher exposure to       Oncological outcomes including number of lymph
   outdoor PM2.5 but lower exposure to second-hand          nodes harvested, R0 and upstaging rates, adjuvant
   smoke.                                                   chemotherapy rates and recurrence rates at 12 months
2. The Global Burden of Disease 2019 study revealed         were similar between the groups. In conclusion, VATS
   that the percent of the global lung cancers              lobectomy results in better physical recovery at 5 weeks
   attributable to each risk factor is 62.4% for smoking,   compared with open surgery.
   5.8% for second-hand smoking, 15.3% for air
   pollution exposure, and 4% for household air             Comments
   pollution from use of solid fuels for cooking.           1. Lobectomy via VATS rather than open lobectomy led
3. Residential radon exposure is also known to be              to a shorter length of stay with better physical
   associated with lung cancer in never smokers but            function at 5 weeks.
   varies from hour to hour and in the absence of           2. From 6 months to 1 year after surgery, the benefit of
   direct measurements was not included in this                VATS over open lobectomy were lost and the groups
   study.                                                      had similar physical function.
4. Never smokers with lung cancer in this study were        3. There was more bleeding and more patients with
   more likely to live near truck routes where diesel          air leaks in the VATS group but these did not appear
   fumes are concentrated                                      to impact patient outcomes.
5. Although this study was able to estimate PM2.5           4. Although a wound dressing sufficiently large to
   exposure in the 20 years prior to lung cancer               conceal a thoracotomy incision (regardless of
   diagnosis, the etiologically relevant period for            actual access used) was applied, the dressing was
   exposure is not known.                                      removed on discharge and so the participants were
                                                               not blinded for the primary endpoint.
MANAGEMENT OF EARLY STAGE LUNG CANCER                       5. Longer term oncological outcomes e.g. 5 year
Lim E, Batchelor TJP, Dunning J, Shackcloth M et al.           survival will be important and are awaited.
Video-assisted thoracoscopic or open lobectomy in
early-stage lung cancer. NEJM Evidence 2022; 1 (3)          MANAGEMENT OF EARLY STAGE NON-SMALL CELL LUNG
                                                            CANCER
Summary                                                     Felip E, Altorki N, Zhou C, Csőszi T, Vynnychenko I,
While surgery is established as the standard of care for    Goloborodko O, Luft A, Akopov A, Martinez-Marti A,
early-stage lung cancer, previous trials of a video-        Kenmotsu H, Chen YM, Chella A, Sugawara S, Voong D,
assisted thorascopic (VATS) vs open approach have           Wu F, Yi J, Deng Y, McCleland M, Bennett E, Gitlitz B,
been inconclusive. In this U.K. multicenter pragmatic       Wakelee H; IMpower010 Investigators. Adjuvant
trial, 503 participants were randomly assigned to VATS      atezolizumab after adjuvant chemotherapy in resected
(n=247) or open lobectomy (n=256). In the VATS group,       stage IB-IIIA non-small-cell lung cancer (IMpower010): a
there was one to four incisions without rib spreading       randomised, multicentre, open-label, phase 3 trial.
while participants in the open surgery group underwent      Lancet. 2021 Oct 9;398(10308):1344-1357.
lobectomy through a single thoracotomy incision with

Lung Cancer                                                                                                            15
Clinical Year in Review

Summary                                                      4.   In Impower010 8% of patients developed grade 3-4
No new therapies have been approved over the past                 immune-related adverse events and risk of chronic
decade for patients with completely resected NSCLC                adverse events should be considered in shared
without oncogenic drivers. Immune-checkpoint                      decision-making.
inhibitors are used routinely used in patients with          5.   Use of immunotherapy in the adjuvant setting
advanced lung cancer and this IMpower010 trial is the             raises questions about the efficacy of
first positive trial of immunotherapy in the adjuvant             immunotherapy in patients who subsequently
setting. In this trial, 1,005 patients with completely            develop disease progression.
resected stage IB–IIIA NSCLC were randomly assigned
(1:1) to receive adjuvant atezolizumab (1200 mg every 21     MANAGEMENT OF ADVANCED NSCLC
days for 16 cycles or 1 year) or best supportive care,       Skoulidis F, Li BT, Dy GK, Price TJ, Falchook GS, Wolf J,
after adjuvant platinum-based chemotherapy. The              Italiano A, Schuler M, Borghaei H, Barlesi F, Kato T,
primary end point was investigator-assessed disease-         Curioni-Fontecedro A, Sacher A, Spira A, Ramalingam SS,
free survival (DFS) and was tested in a complex              Takahashi T, Besse B, Anderson A, Ang A, Tran Q, Mather
hierarchy. In the first analysis, atezolizumab prolonged     O, Henary H, Ngarmchamnanrith G, Friberg G, Velcheti V,
DFS in the subpopulation of patients with stage II–IIIA      Govindan R. Sotorasib for Lung Cancers with KRAS
NSCLC and PD-L1 expression on ≥1% tumor cells (HR            p.G12C Mutation. N Engl J Med. 2021 Jun 24;384(25):2371-
0.66, 95% CI 0.50–0.88; P = 0.0039). In the second           2381.
analysis, a lower level of benefit from atezolizumab was
demonstrated among all patients in the stage II–IIIA         Summary
population (HR 0.79, 95% CI 0.64–0.96; P = 0.02),            KRASG12C mutations can be found in approximately 13%
including ~45% with PD-L1 expression on ≤1% of tumour        of patients with NSCLC and are associated with poor
cells. In the third analysis, in the intention-to-treat      prognosis. This phase II study, CodeBreaK 100,
population that additionally included the patients with      demonstrates the efficacy of the novel KRASG12C
stage IB disease, the HR was 0.81, 95% CI 0.67–0.99 (P =     specific inhibitor sotorasib. In this single-arm study, a
0.04). Finally, a fourth analysis revealed no benefit with   total of 126 patients with disease progression on an
adjuvant atezolizumab for the secondary endpoint of          anti-PD-1 or anti-PD-L1 antibody and/or platinum-
overall survival (HR 1.07, 95% CI 0.80–1.42). The 3rd and    based chemotherapy received a 960 mg daily dose of
4th analyses are immature and will be updated.               sotorasib until death, disease progression,
                                                             unacceptable adverse events or withdrawal. Objective
Comments                                                     response rate was the primary end point. Secondary
1. IMpower010 showed a disease-free survival benefit         end points included duration of response, disease
   with atezolizumab versus best supportive care after       control (defined as complete response, partial
   adjuvant chemotherapy in patients with resected           response, or stable disease), progression-free survival,
   stage II–IIIA NSCLC, with particular benefit in the       overall survival, and safety. An objective response was
   subgroup whose tumours expressed PD-L1≥1%                 observed in 46 patients (37.1%, 95% CI 28.6-46.2%).
2. Although DFS is an accepted endpoint for drug             Median duration of response was 11.1 months and
   approval, overall survival benefit should be the aim      responses were significant with a median 60% decrease
   for adjuvant treatment and it is difficult to             in tumor burden from baseline. Median progression-
   anticipate whether the DFS seen in this trial will        free survival was 6.8 months, with a median overall
   translate into an OS benefit.                             survival of 12.5 months. Adverse events deemed to be
3. A post hoc exploratory analysis in the stage II–IIIA      treatment-related of any grade occurred in 69.8% of
   population of IMpower010 showed a positive                patients, including grade 3–4 events in 20.6%.
   correlation between the DFS benefit from                  CodeBreak 100 demonstrates the safety and efficacy of
   atezolizumab and PD-L1 expression on tumor cells          sotorasib in patients with pretreated advanced
   (PD-L1
Clinical Year in Review

Comments                                                      Coker-Schwimmer M, Middleton JC, Voisin C, Harris RP.
1. KRAS mutant lung cancers are common but have               Screening for Lung Cancer With Low-Dose Computed
   proved difficult to target and this is the first report    Tomography: Updated Evidence Report and Systematic
   of a novel agent with significant activity after           Review for the US Preventive Services Task Force. JAMA.
   disease progression on immunotherapy and/or                2021 Mar 9;325(10):971-987.
   chemotherapy.
2. Disease control occurred in 81% of patients and            Tammemägi MC, Ruparel M, Tremblay A, Myers R, Mayo J,
   tumour shrinkage of any magnitude was observed             Yee J, Atkar-Khattra S, Yuan R, Cressman S, English J,
   in 82% of participants.                                    Bedard E, MacEachern P, Burrowes P, Quaife SL,
3. Although encouraging, the response rate (37%) is           Marshall H, Yang I, Bowman R, Passmore L, McWilliams
   lower than for other personalized therapies in             A, Brims F, Lim KP, Mo L, Melsom S, Saffar B, Teh M,
   NSCLC e.g. EGFR-TKIs                                       Sheehan R, Kuok Y, Manser R, Irving L, Steinfort D,
4. A variety of resistance mechanisms are likely to           McCusker M, Pascoe D, Fogarty P, Stone E, Lam DCL, Ng
   exist that may limit efficacy including lesions that       MY, Vardhanabhuti V, Berg CD, Hung RJ, Janes SM, Fong
   activate RAS by a non-G12C mechanism and KRAS              K, Lam S. USPSTF2013 versus PLCOm2012 lung cancer
   amplification.                                             screening eligibility criteria (International Lung
5. The efficacy of combinations of sotorasib with             Screening Trial): interim analysis of a prospective
   immune-checkpoint inhibitors and/or                        cohort study. Lancet Oncol. 2022 Jan;23(1):138-148.
   chemotherapy is to be determined, while newer
                                                              Fahrmann JF, Marsh T, Irajizad E, Patel N, Murage E,
   generations of KRAS inhibitors are also in
                                                              Vykoukal J, Dennison JB, Do KA, Ostrin E, Spitz MR, Lam S,
   development
                                                              Shete S, Meza R, Tammemägi MC, Feng Z, Hanash SM.
OTHER ARTICLES OF INTEREST                                    Blood-Based Biomarker Panel for Personalized Lung
                                                              Cancer Risk Assessment. J Clin Oncol. 2022 Mar
Epidemiology                                                  10;40(8):876-883.
Ganti AK, Klein AB, Cotarla I, Seal B, Chou E. Update of
Incidence, Prevalence, Survival, and Initial Treatment in     Management of Operable Non-Small Cell Lung Cancer
Patients With Non-Small Cell Lung Cancer in the US.           Le Pechoux C, Pourel N, Barlesi F, Lerouge D, Antoni D,
JAMA Oncol. 2021 Dec 1;7(12):1824-1832.                       Lamezec B, Nestle U, Boisselier P, Dansin E, Paumier A,
                                                              Peignaux K, Thillays F, Zalcman G, Madelaine J, Pichon E,
Huang Y, Zhu M, Ji M, Fan J, Xie J, Wei X, Jiang X, Xu J,     Larrouy A, Lavole A, Argo-Leignel D, Derollez M, Faivre-
Chen L, Yin R, Wang Y, Dai J, Jin G, Xu L, Hu Z, Ma H, Shen   Finn C, Hatton MQ, Riesterer O, Bouvier-Morel E, Dunant
H. Air Pollution, Genetic Factors, and the Risk of Lung       A, Edwards JG, Thomas PA, Mercier O, Bardet A.
Cancer: A Prospective Study in the UK Biobank. Am J           Postoperative radiotherapy versus no postoperative
Respir Crit Care Med. 2021 Oct 1;204(7):817-825.              radiotherapy in patients with completely resected non-
                                                              small-cell lung cancer and proven mediastinal N2
Screening                                                     involvement (Lung ART): an open-label, randomised,
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Lung Cancer                                                                                                                17
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Lung Cancer                                                                                                                18
Clinical Year in Review

Pneumonia and Pulmonary Infections
Francesco Amati, MD
Humanitas Research Hospital
Department of Biomedical Sciences, Respiratory Unit
Milan, Italy

DURATION OF ANTIBIOTIC TREATMENT IN ADULT                  4.   The study was performed in France where microbial
PATIENTS WITH NON-SEVERE CAP                                    resistance rates and patient-level characteristics
Dinh A et al. Discontinuing β-Lactam Treatment After 3          may differ from an individual physician’s practice
Days for Patients with Community-Acquired Pneumonia             population
in Non-Critical Care Wards (PTC): A Double-Blind,          5.   European treatment guidelines used in the study
Randomised, Placebo-Controlled, Non-Inferiority Trial.          differ from the U.S.
Lancet 2021. PMID: 33773631
                                                           DURATION OF ANTIBIOTIC TREATMENT IN PEDIATRIC
Summary
                                                           PATIENTS WITH NON-HOSPITALIZED CAP
Clinical Question: Is a 3-day course of β-lactam therapy
                                                           Pernica JM, Harman S, Kam AJ, et al. Short-Course
non inferior compared to an 8-day course for admitted
                                                           Antimicrobial Therapy for Pediatric Community-
patients with non-severe CAP?
                                                           Acquired Pneumonia: The SAFER Randomized Clinical
Methods and design: Multi-center, double-blind,
                                                           Trial. JAMA Pediatr. 2021;175(5):475-482.
randomized, placebo-controlled non-inferiority trial
                                                           doi:10.1001/jamapediatrics.2020.6735
comparing 3 days of β-lactam treatment to 8 days of β-
lactam treatment in non-ICU patients admitted with
                                                           Summary
CAP. Randomized adult patients (≥ 18 years old)
                                                           Clinical question: Is 5 days of high-dose amoxicillin for
admitted to the hospital with CAP after 3 days of IV or
                                                           non-hospitalized CAP in pediatric community
oral β-lactam treatment.
                                                           associated with non-inferior rates of clinical cure
Primary outcome: Cure at 15 days after start of
                                                           compared with 10 days of high-dose amoxicillin?
antibiotic treatment.
                                                           Methods and design: The SAFER (Short-Course
Results: 706 patients assessed for eligibility; 396
                                                           Antimicrobial Therapy for Pediatric Respiratory
excluded; 310 patients randomized to a placebo group
                                                           Infections) study was a 2-center, parallel-group, non-
or β-lactam group. 117 of 152 (77%) of patients in the 3
                                                           inferiority randomized clinical trial. Patients were
day β-lactam group, followed by 5 days of placebo
                                                           randomized to 5 days of high-dose amoxicillin therapy
(placebo) were cured whereas 102 of 151 (68%) of
                                                           followed by 5 days of placebo (intervention group) vs 5
patients in the 8 day β-lactam group were cured. The
                                                           days of high-dose amoxicillin followed by a different
difference was 9.42% (95 % CI -0.38 – 20.04) indicating
                                                           formulation of 5 days of high-dose amoxicillin (control
non-inferiority. No differences in the secondary
                                                           group).
outcomes were recorded, including 30-day cure, all-
                                                           Primary outcome: Clinical cure at 14 to 21 days.
cause mortality, frequency and severity of adverse
                                                           Results: Among the 281 participants, the median age
events, length of hospital stay and recovery time.
                                                           was 2.6 (interquartile range, 1.6-4.9) years (160 boys
Comments                                                   [57.7%] of 279 with sex listed). Clinical cure was
1. This RCT attempts to tackle a relevant clinical         observed in 101 of 114 children (88.6%) in the
   question: reducing antibiotic usage for CAP.            intervention group and in 99 of 109 (90.8%) in the
2. Primary and secondary outcomes of the study are         control group in per-protocol analysis (risk difference, -
   patient-oriented.                                       0.016; 97.5% confidence limit, -0.087). Clinical cure at 14
3. Adherence to protocol and inclusion criteria reflects   to 21 days was observed in 108 of 126 (85.7%) in the
   the fact that the study might be easily replicated in   intervention group and in 106 of 126 (84.1%) in the
   clinical practice

Pneumonia and Pulmonary Infections                                                                                      19
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