Skip to main content
Update Location

My Location

Update your location to show providers, locations, and services closest to you.

Enter a zip code
Select a campus/region


  • Status
    Accepting Candidates
  • Age
    18 Years - 80 Years
  • Sexes
  • Healthy Volunteers


A phase 1b/2 study of XTMAB-16 in patients with pulmonary sarcoidosis


Full study title A seamless, Phase 1b/2 multiple ascending dose/proof of concept study of XTMAB-16 in patients with pulmonary sarcoidosis with or without extrapulmonary manifestations.
Protocol number OCR44969 ID NCT05890729
Phase Phase 1/Phase 2


Inclusion Criteria:

  1. Participant between 18 to 80 years (inclusive) of age.

  2. Weighs between 45 kg and 160 kg (99 to 353 lbs) at Screening.

  3. Diagnosis of pulmonary sarcoidosis (at least 6 months before Screening) using the 2020 American Thoracic Society (ATS) Clinical Practice Guideline (Crouser et al, 2020), the European Respiratory Society (ERS) or the WASOG criteria including a compatible clinical and radiologic presentation with other causes of granulomatous disease ruled out (cutaneous and ocular involvement permitted).

  4. Modified Medical Research Conference (mMRC) Dyspnea Scale of ≥ 1.

  5. Receiving treatment of 7. 5 to 25 mg/day of oral prednisone, or equivalent, during the screening period and, at the determination of the investigator, is capable of undergoing the protocol specific corticosteroid taper regimen.

  6. Receiving treatment with methotrexate, azathioprine, mycophenolate, leflunomide, chloroquine, or hydroxychloroquine for at least 3 months before Screening that has been at a stable dose for 4 weeks before Screening. All efforts should be made to maintain stable background therapy at the Screening dose through the intervention period at the Investigator's discretion.

  7. PART A only: Willing to refrain from consumption of grapefruit or grapefruit juice [pomelos, exotic citrus fruits, or grapefruit hybrids] from screening visit until after the final dose.

  8. Polymerase chain reaction (PCR) test or rapid antigen test negative for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) at Screening.

  9. Able to provide written informed consent.

  10. In the opinion of the Investigator, the participant is capable of understanding and

complying with protocol requirements

Exclusion Criteria:

  1. Pregnant or breastfeeding women or women who are planning to become pregnant during the study.

  2. PART A ONLY: Participants > 65 years of age. (This exclusion criterion is only applicable for EU).

  3. PART A ONLY: Known potentially significant fibrotic disease and/or active inflammation contained solely in the hilar region as shown by high-resolution computed tomography (HRCT), confirmed by a central reader. Participants with current active inflammation in the hilar region with concurrent inflammation outside the hilar region may be included. A historical HRCT performed within 6 months of screening may be submitted for diagnostic confirmation by central review. If a subject's last HRCT was from > 6 months of screening, an HRCT should be performed during screening for diagnostic confirmation by central review.

  4. PART A ONLY: Any prior TNFα inhibitor therapy.

  5. Clinically significant extra-pulmonary sarcoidosis requiring systemic therapy as determined by the investigator.

  6. PART B ONLY: Any therapy with an anti-TNFα monoclonal antibody (e.g., infliximab, adalimumab, golimumab and their biosimilars) within 6 months.

  7. Baseline percent predicted forced vital capacity (FVC) of < 50%.

  8. Prior treatment with rituximab or repository corticotropin injection within the previous 12 months.

  9. Clinically significant Central Nervous System (CNS) sarcoidosis requiring therapy, except history of isolated seventh cranial nerve palsy or evidence of demyelinating neurologic disease.

  10. Advanced congestive heart failure (New York Heart Association [NYHA] 3 or 4).

  11. Current disease presentation consistent with Lofgren's syndrome (i.e., presence of the

triad of erythema nodosum, bilateral hilar lymphadenopathy on chest X-ray, and joint


  1. Clinically significant pulmonary hypertension requiring treatment. Note: Clinically

significant pulmonary hypertension requiring treatment would be defined as treatment

with, i.e., prostacyclins, phosphodiesterase 5 inhibitors, and endothelin receptor


  1. Known hypersensitivity to any component of the formulation of XTMAB-16.

  2. Live or messenger ribonucleic acid (mRNA) vaccination within 2 weeks before Day 1 or

inoculation with a live or mRNA vaccine is planned during study participation.

  1. Evidence of active or latent TB by interferon-gamma release assay (IGRA) or invasive

fungal infections at Screening.

  1. Known positive history of malignancy other than non-melanomatous skin cancer in the

last 2 years, including in-situ carcinoma of the uterine cervix completely cured by

radical surgery.

  1. Positive test result for hepatitis B surface antigen (HBsAg), hepatitis C virus (HCV)

antibody, coronavirus disease (COVID-19), TB, or a known history of human

immunodeficiency virus (HIV) infection at Screening.

  1. Women of childbearing potential who are sexually active with a non-sterilized male

partner and are not willing to adhere to highly effective birth control measures from

the time of signing the informed consent, throughout the duration of the study, and

for 90 days after 5 half-lives have elapsed since the last dose of study drug.

  1. Male participants who are non-sterilized and sexually active with a female partner of

childbearing potential and are not willing to use highly effective contraception from

the time of signing the informed consent throughout the duration of the study, and for

90 days after 5 half-lives have elapsed since last dose of study drug.

  1. Clinically significant hepatic or renal disease, including uncontrolled diabetes at

the discretion of the investigator.

  1. Any severe prior reaction to any type of biologics or human blood product such as

albumin, IgG, etc.

  1. Concurrent emphysema.

  2. Known hypercalcemia due to non-sarcoidosis conditions such as untreated

hyperparathyroidism, at the discretion of the investigator.

  1. Abnormal ECG: ventricular arrhythmias (non-sustained ventricular tachycardia (VT),

multifocal or frequent premature ventricular contractions, bundle branch block, axis

deviation, or abnormal Q waves). In the case of a QTcF (corrected QT interval by

Fredericia) interval > 450 ms (men) or > 480 ms (women; participants with bundle

branch block) or PR interval outside the range of 120 to 220 ms, the assessment may be

repeated once for eligibility determination at Screening or Baseline.

  1. Donation or loss of 450 mL or more of his or her blood volume (including

plasmapheresis) or transfusion of any blood product within 90 days prior to dosing.

  1. Known uncontrolled hypertension. Note: Uncontrolled hypertension is noted as blood

pressure ≥ 160/100 mmHg despite antihypertensive therapy within 3 months of


  1. Clinical signs and symptoms consistent with COVID-19, e.g., fever, dry cough, dyspnea,

sore throat, fatigue, new smell or taste disorder or confirmed infection by

appropriate laboratory test within the last 4 weeks prior to Screening.

  1. In the opinion of the investigator, inability to tolerate corticosteroid taper.

  2. Concurrent systemic steroid use for non-sarcoidosis conditions.

  3. Concurrent known auto-immune disease requiring treatment.

  4. Participation in another clinical trial of an investigational agent within 3 months

(small molecule) / 6 months (biologics) or 5 half-lives (if known) of the agent,

whichever is longer.

  1. Any condition that required hospitalization within the 3 months prior to Day 1 or is

likely to require so during the study.

  1. Clinically significant abnormalities in the Screening physical exam, medical history,

vital signs, ECG, or clinical laboratory tests that are not known to be due to

concurrent sarcoidosis, and in the opinion of the Investigator and Medical Monitor

should preclude the participant's participation in the clinical study.

Participate in a study

Here are some general steps to consider when participating in a research study:

  1. Step

    Contact the research team

    Call or email the research team listed within the specific clinical trial or study to let them know that you're interested. A member of the research team, such as the researcher or study coordinator, will be available to tell you more about the study and to answer any questions or concerns you may have.

    Primary contact

  2. Step

    Get screened to confirm eligibility

    You may be asked to take part in prescreening to make sure you are eligible for a study. The prescreening process ensures it is safe for you to participate. During the prescreening process, you will be asked some questions and you may also be asked to schedule tests or procedures to confirm your eligibility.

  3. Step

    Provide your consent to participate

    If you are eligible and want to join the clinical trial or study, a member of the research team will ask for your consent to participate. To give consent, you will be asked to read and sign a consent form for the study. This consent form explains the study's purpose, procedures, risks, benefits and provides other important information, such as the study team's contact information.

  4. Step


    If you decide to participate in a clinical trial or study, the research team will keep you informed of the study requirements and what you will need to do to throughout the study. For some trials or studies, your health care provider may work with the research team to ensure there are no conflicts with other medications or treatments.