IPFCT-IPF ANTHEMNCT07790614
Photon-counting CT Scan vs Standard HRCT Scan in the Identification of Idiopathic Pulmonary Fibrosis
An observational study of IPF and ILD, run by Istituto Clinico Humanitas at 1 site in Italy.
Trial summary
The CT-IPF ANTHEM study is designed to prospectively compare PCDCT to HRCT scan in the identification of specific ILD diagnosis discussed during the multidisciplinary discussion to increase diagnostic confidence and reduce unclassifiable ILD cases. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- IPF, ILD, Interstitial Lung Disease (ILD)
- What is being tested?
- Photon counting CT
- How many people
- 156 participants
- Where
- 1 siteItaly
- Study dates
- 25 Mar 2025to Dec 2026
- Phase
- Observational
- 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
Study population: Adults patients with a new diagnosis of ILD referred to the outpatient clinic of ILD of Humanitas Research Hospital, Rozzano - Milano) and with the need of a MDD discussion to reach a diagnosis will be enrolled. MDD will be leaded by two pulmonologists with 5 years of experience in ILDs. Each MDD session will include at least one additional pulmonologist, two thoracic radiologists, one thoracic surgeon, one thoracic pathologist, one rheumatologist, and at least two fellows in respiratory medicine. MDD meetings will be held every week and lasted approximately 60 minutes. Patients will be discussed using a standard case report form. Two diagnosis will be collected: the first diagnosis will be collected using the HRCT scan imaging. The second diagnosis will be collected using the PCDCT scan imaging.
Who may be able to join
- ≥ 18 years of age
- Any gender
- Any race
- Signed informed consent
- ILD diagnosis with the need for a multidisciplinary discussion
Who cannot join
- Patients with acute exacerbation of ILD
- Interstitial abnormalities that could be explained by causes different than ILD (e.g.: heart failure; viral)
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Italy1 site, 1 recruiting
- Recruiting
Humanitas Research Hospital
Rozzano, Italy, 20089
Francesco Amati, MD, +393282592750, francesco.amati@hunimed.eu
Lisa Usuelli, MD, +393400095239, lisa.usuelli@humanitas.it
About this study
The CT-IPF ANTHEM study is designed to prospectively compare PCDCT to HRCT scan in the identification of specific ILD diagnosis discussed during the multidisciplinary discussion to increase diagnostic confidence and reduce unclassifiable ILD cases.
Read the detailed description
The advent of a new generation of CT systems based on photon-counting detector technology is raising great interest in the medical community, anticipating a major improvement in numerous clinical applications including chest disorders. These expectations are drawn from the technological advantages inherent to these new CT systems, including a higher contrast-to-noise ratio, higher spatial resolution, and lower radiation dose together with the potential of multienergy imaging.
Non-contrast enhanced CT will be acquired in spectral ultra-high-resolution mode on a clinical dual-source photon-counting detector CT (PCDCT) (NAEOTOM Alpha, Siemens Healthineers AG, Forchheim, Germany). All scans will be acquired with automated exposure control.
Recent evidence showed that images obtained with PCDCT allowed a more precise depiction of CT features of ILDs with similar radiation dose. Subjective visualization of specific IPF features, such as reticulation and traction bronchiectasis, using PCDCT has been rated superior to conventional HRCT. Thus, a more precise delineation of fine fibrotic abnormalities could modify the categorization of ILD patterns and improve the diagnostic confidence of IPF and not-IPF diagnosis, reducing the prevalence of unclassifiable ILD.
- Conditions
- IPF, ILD, Interstitial Lung Disease (ILD), Interstitial Lung Diseases, Idiopathic Pulmonary Fibrosis, Idiopathic Pulmonary Fibrosis (IPF)
- Being tested
- Photon counting CT
- Keywords
- IPF, Idiopathic pulmonary fibrosis, Interstitial lung diseases, ILD, Photon counting CT, CT scan, HRCT, PCDCT
- Medical subject headings
- Lung Diseases, Interstitial, Idiopathic Pulmonary Fibrosis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Photon counting CTDiagnostic test
Non-contrast enhanced CT will be acquired in spectral ultra-high-resolution mode on a clinical dual-source photon-counting detector CT (PCDCT) (NAEOTOM Alpha, Siemens Healthineers AG, Forchheim, Germany). All scans will be acquired with automated exposure control.
| Study group | Role | What they receive |
|---|---|---|
| ILD patients undergoing radiological evaluation | Eligible partecipants will be adults (≥ 18 years of age) with a new diagnosis of ILD referred to the outpatient clinic of ILD of Humanitas Research Hospital, Rozzano - Milano) and with the need of a MDD discussion to reach a diagnosis. Receives: Diagnostic Test: Photon counting CT |
What is being measured
The primary outcome is the main question the study is designed to answer.
Reduction of unclassifiable ILD diagnosis after MDD comparing PCDCT vs standard Chest HRCT scan using McNemar test
Measured: 2 years
Secondary outcomes (2)
Increase in IPF diagnosis after MDD comparing PCDCT vs standard Chest HRCT scan using McNemar test
Measured: 2 years
Interobserver agreement among radiologists using Cohen's kappa
Measured: 2 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Aug 2026
- Study start25 Mar 2025
- Primary completionDec 2026 (estimated)
- Study completionDec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (7)Papers the sponsor has linked to this study.
- Other trials for IPFStudies of the same condition, open and under way.
- 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
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 156 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Istituto Clinico Humanitas
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Francesco Amati, MD, Principal investigator, Humanitas Research Hospital IRCCS, Rozzano-Milan
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07790614
- Sponsor's protocol ID
- 599/24
- Acronym
- CT-IPF ANTHEM
- Status last verified
- Apr 2026
- First submitted
- 5 May 2026
- Last updated
- 27 Aug 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Publications
Ryerson CJ, Urbania TH, Richeldi L, Mooney JJ, Lee JS, Jones KD, Elicker BM, Koth LL, King TE Jr, Wolters PJ, Collard HR. Prevalence and prognosis of unclassifiable interstitial lung disease. Eur Respir J. 2013 Sep;42(3):750-7. doi: 10.1183/09031936.00131912. Epub 2012 Dec 6.
PubMed 23222877Rajendran K, Koo CW. Photon-counting detector CT: improving interstitial lung disease classification using ultra-high resolution at a fraction of the radiation dose? Eur Radiol. 2023 Aug;33(8):5526-5527. doi: 10.1007/s00330-023-09617-w. Epub 2023 Apr 18. No abstract available.
PubMed 37071170Prayer F, Kienast P, Strassl A, Moser PT, Bernitzky D, Milacek C, Gyongyosi M, Kifjak D, Rohrich S, Beer L, Watzenbock ML, Milos RI, Wassipaul C, Gompelmann D, Herold CJ, Prosch H, Heidinger BH. Detection of Post-COVID-19 Lung Abnormalities: Photon-counting CT versus Same-Day Energy-integrating Detector CT. Radiology. 2023 Apr;307(1):e222087. doi: 10.1148/radiol.222087. Epub 2022 Nov 29.
PubMed 36445225Raghu G, Remy-Jardin M, Richeldi L, Thomson CC, Inoue Y, Johkoh T, Kreuter M, Lynch DA, Maher TM, Martinez FJ, Molina-Molina M, Myers JL, Nicholson AG, Ryerson CJ, Strek ME, Troy LK, Wijsenbeek M, Mammen MJ, Hossain T, Bissell BD, Herman DD, Hon SM, Kheir F, Khor YH, Macrea M, Antoniou KM, Bouros D, Buendia-Roldan I, Caro F, Crestani B, Ho L, Morisset J, Olson AL, Podolanczuk A, Poletti V, Selman M, Ewing T, Jones S, Knight SL, Ghazipura M, Wilson KC. Idiopathic Pulmonary Fibrosis (an Update) and Progressive Pulmonary Fibrosis in Adults: An Official ATS/ERS/JRS/ALAT Clinical Practice Guideline. Am J Respir Crit Care Med. 2022 May 1;205(9):e18-e47. doi: 10.1164/rccm.202202-0399ST.
PubMed 35486072Lynch DA, Sverzellati N, Travis WD, Brown KK, Colby TV, Galvin JR, Goldin JG, Hansell DM, Inoue Y, Johkoh T, Nicholson AG, Knight SL, Raoof S, Richeldi L, Ryerson CJ, Ryu JH, Wells AU. Diagnostic criteria for idiopathic pulmonary fibrosis: a Fleischner Society White Paper. Lancet Respir Med. 2018 Feb;6(2):138-153. doi: 10.1016/S2213-2600(17)30433-2. Epub 2017 Nov 15.
PubMed 29154106Hambly N, Farooqi MM, Dvorkin-Gheva A, Donohoe K, Garlick K, Scallan C, Chong SG, MacIsaac S, Assayag D, Johannson KA, Fell CD, Marcoux V, Manganas H, Morisset J, Comes A, Fisher JH, Shapera S, Gershon AS, To T, Wong AW, Sadatsafavi M, Wilcox PG, Halayko AJ, Khalil N, Cox G, Richeldi L, Ryerson CJ, Kolb M. Prevalence and characteristics of progressive fibrosing interstitial lung disease in a prospective registry. Eur Respir J. 2022 Oct 6;60(4):2102571. doi: 10.1183/13993003.02571-2021. Print 2022 Oct.
PubMed 35273032Guler SA, Ryerson CJ. Unclassifiable interstitial lung disease: from phenotyping to possible treatments. Curr Opin Pulm Med. 2018 Sep;24(5):461-468. doi: 10.1097/MCP.0000000000000509.
PubMed 30004990
Study at a glance
From the registry record, last updated by the sponsor on 27 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Photon-counting CT Scan vs Standard HRCT Scan in the Identification of Idiopathic Pulmonary Fibrosis
- ClinicalTrials.gov ID
- NCT07790614
- Acronym / sponsor ID
- CT-IPF ANTHEM / 599/24
- Conditions
- IPF, ILD, Interstitial Lung Disease (ILD), Interstitial Lung Diseases, Idiopathic Pulmonary Fibrosis, Idiopathic Pulmonary Fibrosis (IPF)
- Keywords
- IPF, Idiopathic pulmonary fibrosis, Interstitial lung diseases, ILD, Photon counting CT, CT scan, HRCT, PCDCT
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 156 participants (estimated)
- Lead sponsor
- Istituto Clinico HumanitasUniversity, hospital or other
- Study start
- 25 Mar 2025 (actual)
- Primary completion
- Dec 2026 (estimated)
- Study completion
- Dec 2026 (estimated)
- First posted
- 27 Aug 2026 (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.
The CT-IPF ANTHEM study is designed to prospectively compare PCDCT to HRCT scan in the identification of specific ILD diagnosis discussed during the multidisciplinary discussion to increase diagnostic confidence and reduce unclassifiable ILD cases.
Detailed description
The advent of a new generation of CT systems based on photon-counting detector technology is raising great interest in the medical community, anticipating a major improvement in numerous clinical applications including chest disorders. These expectations are drawn from the technological advantages inherent to these new CT systems, including a higher contrast-to-noise ratio, higher spatial resolution, and lower radiation dose together with the potential of multienergy imaging.
Non-contrast enhanced CT will be acquired in spectral ultra-high-resolution mode on a clinical dual-source photon-counting detector CT (PCDCT) (NAEOTOM Alpha, Siemens Healthineers AG, Forchheim, Germany). All scans will be acquired with automated exposure control.
Recent evidence showed that images obtained with PCDCT allowed a more precise depiction of CT features of ILDs with similar radiation dose. Subjective visualization of specific IPF features, such as reticulation and traction bronchiectasis, using PCDCT has been rated superior to conventional HRCT. Thus, a more precise delineation of fine fibrotic abnormalities could modify the categorization of ILD patterns and improve the diagnostic confidence of IPF and not-IPF diagnosis, reducing the prevalence of unclassifiable ILD.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| ILD patients undergoing radiological evaluation | – | Diagnostic Test: Photon counting CTEligible partecipants will be adults (≥ 18 years of age) with a new diagnosis of ILD referred to the outpatient clinic of ILD of Humanitas Research Hospital, Rozzano - Milano) and with the need of a MDD discussion to reach a diagnosis. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Adults patients with a new diagnosis of ILD referred to the outpatient clinic of ILD of Humanitas Research Hospital, Rozzano - Milano) and with the need of a MDD discussion to reach a diagnosis will be enrolled. MDD will be leaded by two pulmonologists with 5 years of experience in ILDs. Each MDD session will include at least one additional pulmonologist, two thoracic radiologists, one thoracic surgeon, one thoracic pathologist, one rheumatologist, and at least two fellows in respiratory medicine. MDD meetings will be held every week and lasted approximately 60 minutes. Patients will be discussed using a standard case report form. Two diagnosis will be collected: the first diagnosis will be collected using the HRCT scan imaging. The second diagnosis will be collected using the PCDCT scan imaging.
Key inclusion criteria (5 listed)
- ≥ 18 years of age
- Any gender
- Any race
- Signed informed consent
- ILD diagnosis with the need for a multidisciplinary discussion
Key exclusion criteria (2 listed)
- Patients with acute exacerbation of ILD
- Interstitial abnormalities that could be explained by causes different than ILD (e.g.: heart failure; viral)
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 |
|---|---|---|
| Photon counting CTNon-contrast enhanced CT will be acquired in spectral ultra-high-resolution mode on a clinical dual-source photon-counting detector CT (PCDCT) (NAEOTOM Alpha, Siemens Healthineers AG, Forchheim, Germany). All scans will be acquired with automated exposure control. | Diagnostic test | ILD patients undergoing radiological evaluation |
Primary outcome
Reduction of unclassifiable ILD diagnosis after MDD comparing PCDCT vs standard Chest HRCT scan using McNemar test
Time frame: 2 years
2 secondary outcomes
Increase in IPF diagnosis after MDD comparing PCDCT vs standard Chest HRCT scan using McNemar test
Time frame: 2 years
Interobserver agreement among radiologists using Cohen's kappa
Time frame: 2 years
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 27 Aug 2026.
- Background: PubMed 23222877Ryerson CJ, Urbania TH, Richeldi L, Mooney JJ, Lee JS, Jones KD, Elicker BM, Koth LL, King TE Jr, Wolters PJ, Collard HR. Prevalence and prognosis of unclassifiable interstitial lung disease. Eur Respir J. 2013 Sep;42(3):750-7. doi: 10.1183/09031936.00131912. Epub 2012 Dec 6.
- Background: PubMed 37071170Rajendran K, Koo CW. Photon-counting detector CT: improving interstitial lung disease classification using ultra-high resolution at a fraction of the radiation dose? Eur Radiol. 2023 Aug;33(8):5526-5527. doi: 10.1007/s00330-023-09617-w. Epub 2023 Apr 18. No abstract available.
- Background: PubMed 36445225Prayer F, Kienast P, Strassl A, Moser PT, Bernitzky D, Milacek C, Gyongyosi M, Kifjak D, Rohrich S, Beer L, Watzenbock ML, Milos RI, Wassipaul C, Gompelmann D, Herold CJ, Prosch H, Heidinger BH. Detection of Post-COVID-19 Lung Abnormalities: Photon-counting CT versus Same-Day Energy-integrating Detector CT. Radiology. 2023 Apr;307(1):e222087. doi: 10.1148/radiol.222087. Epub 2022 Nov 29.
- Background: PubMed 35486072Raghu G, Remy-Jardin M, Richeldi L, Thomson CC, Inoue Y, Johkoh T, Kreuter M, Lynch DA, Maher TM, Martinez FJ, Molina-Molina M, Myers JL, Nicholson AG, Ryerson CJ, Strek ME, Troy LK, Wijsenbeek M, Mammen MJ, Hossain T, Bissell BD, Herman DD, Hon SM, Kheir F, Khor YH, Macrea M, Antoniou KM, Bouros D, Buendia-Roldan I, Caro F, Crestani B, Ho L, Morisset J, Olson AL, Podolanczuk A, Poletti V, Selman M, Ewing T, Jones S, Knight SL, Ghazipura M, Wilson KC. Idiopathic Pulmonary Fibrosis (an Update) and Progressive Pulmonary Fibrosis in Adults: An Official ATS/ERS/JRS/ALAT Clinical Practice Guideline. Am J Respir Crit Care Med. 2022 May 1;205(9):e18-e47. doi: 10.1164/rccm.202202-0399ST.
- Background: PubMed 29154106Lynch DA, Sverzellati N, Travis WD, Brown KK, Colby TV, Galvin JR, Goldin JG, Hansell DM, Inoue Y, Johkoh T, Nicholson AG, Knight SL, Raoof S, Richeldi L, Ryerson CJ, Ryu JH, Wells AU. Diagnostic criteria for idiopathic pulmonary fibrosis: a Fleischner Society White Paper. Lancet Respir Med. 2018 Feb;6(2):138-153. doi: 10.1016/S2213-2600(17)30433-2. Epub 2017 Nov 15.
- Background: PubMed 35273032Hambly N, Farooqi MM, Dvorkin-Gheva A, Donohoe K, Garlick K, Scallan C, Chong SG, MacIsaac S, Assayag D, Johannson KA, Fell CD, Marcoux V, Manganas H, Morisset J, Comes A, Fisher JH, Shapera S, Gershon AS, To T, Wong AW, Sadatsafavi M, Wilcox PG, Halayko AJ, Khalil N, Cox G, Richeldi L, Ryerson CJ, Kolb M. Prevalence and characteristics of progressive fibrosing interstitial lung disease in a prospective registry. Eur Respir J. 2022 Oct 6;60(4):2102571. doi: 10.1183/13993003.02571-2021. Print 2022 Oct.
- Background: PubMed 30004990Guler SA, Ryerson CJ. Unclassifiable interstitial lung disease: from phenotyping to possible treatments. Curr Opin Pulm Med. 2018 Sep;24(5):461-468. doi: 10.1097/MCP.0000000000000509.
- Individual participant dataSharing planned: Undecided
Related trials for IPF
Not yet recruitingPhase 3
Long-term Extension Study to Evaluate Safety and Tolerability of Admilparant in Participants With Pulmonary Fibrosis
Pulmonary Fibrosis
Active, not recruitingPhase 2
A Trial to Evaluate Efficacy and Safety of Buloxibutid in People With Idiopathic Pulmonary Fibrosis.
Idiopathic Pulmonary Fibrosis (IPF)
RecruitingPhase 2
A Phase IIb Study to Evaluate AZD8965 in Participants With IPF.
Idiopathic Pulmonary Fibrosis (IPF)
RecruitingPhase 2
Study to Evaluate the Efficacy, Safety, and Tolerability of PIPE 791 in Subjects With Idiopathic Pulmonary Fibrosis
Idiopathic Pulmonary Fibrosis
RecruitingPhase 3
A Study to Test Whether Nerandomilast Can Help Slow Down Changes in the Lung in People With a Family History of Pulmonary Fibrosis
Familial Pulmonary Fibrosis, Interstitial Lung Abnormalities
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.
Francesco Amati, MD principal investigator
Humanitas Research Hospital IRCCS, Rozzano-Milan
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of IPF and ILD, run by Istituto Clinico Humanitas at 1 site in Italy.
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 5 inclusion and 2 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: looking for participants now, as of the sponsor's last update on 27 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Italy. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
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?
Contact Francesco Amati, MD (+393282592750, franesco.amati@hunimed.eu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Reduction of unclassifiable ILD diagnosis after MDD comparing PCDCT vs standard Chest HRCT scan using McNemar test (time frame: 2 years). 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 NCT07790614, which also lists 7 linked publications.
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 27 Aug 2026.