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99mTc-HFAPI SPECT/CT in Pulmonary Fibrosis

Study Purpose

This prospective study will investigate the potential usefulness of 99mTc labeled FAPI SPECT/CT in the diagnosis, treatment response assessment, and follow-up of pulmonary fibrosis.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.

An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.

Searching Both is inclusive of interventional and observational studies.

Eligible Ages 18 Years - 90 Years
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

  • - suspected or confirmed pulmonary fibrosis patients; - signed written consent.

Exclusion Criteria:

  • - pregnancy; - breastfeeding; - known allergy against FAPI.
- any medical conditions that are considered by the investigator to be likely to seriously interfere with study compliance

Trial Details

Trial ID:

This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.


Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

Peking Union Medical College Hospital
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Principal Investigator Affiliation N/A
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Overall Status Recruiting
Countries China

The disease, disorder, syndrome, illness, or injury that is being studied.

Pulmonary Fibrosis
Additional Details

Idiopathic pulmonary fibrosis refers to a specific form of chronic fibrous interstitial pneumonia that occurs spontaneously, limited to the lung, and shows features of usual interstitial pneumonia on high resolution computed tomography and histological examination. Radionuclide labeled FAPI has been developed as a new tracer for tumor and inflammatory lesions imaging. Recent studies have shown that FAPI PET/CT imaging is a promising new imaging method for pulmonary fibrosis. HFAPI is obtained by conjugating 99mTc-chelator moiety (6-hydrazinonicotinamide, HYNIC) with FAP targeting moiety. The aim of this study is to investigate the location and extent of 99mTc labeled FAPI tracer (99mTc-HFAPI) in normal and fibrotic lung tissue of patients with pulmonary fibrosis, and to explore the clinical significance of 99mTc-HFAPI SPECT/CT in the diagnosis, treatment response evaluation and follow-up of pulmonary fibrosis.

Arms & Interventions


Experimental: Patients diagnosed with pulmonary fibrosis

Patients of Pulmonary Fibrosis SPECT/CT imaging: The patients were subcutaneously injected with 99mTc-HFAPI and underwent SPECT/CT imaging.


Drug: - 99mTc-HFAPI

Each patient receive a intravenous injection of 99mTc-HFAPI, and undergo SPECT/CT scan within specified time.

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

International Sites

Peking union medical college hospital, Beijing, Dongcheng, China




Peking union medical college hospital

Beijing, Dongcheng, 100010

Site Contact

Yu Liu, MD