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RECRUITINGPhase 1INTERVENTIONAL

Evaluate the Safety, Tolerability, PK and PD of SAD of Intravenously Adminsterted ALTB-268 in Healthy Participants

A Phase 1, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Safety Tolerability, Pharmacokinetics, and Pharmacosymics of Single Ascending Doses of Intravenously Administerted ALTB-268 in Healthy Participants

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

This study with ALTB-268 will determine the safety, tolerability, pharmacokinetics and pharmacodynamics of single ascending doses of intravenously administrated ALTB-268 in healthy participants.

Who May Be Eligible (Plain English)

Who May Qualify: 1. Male or female, non-smoker (no use of tobacco or nicotine products within 3 months prior to screening), ≥18 and ≤55 years of age, with body mass index (BMI) \>18.5 and \<32.0 kg/m2 and body weight ≥50.0 kg for males and ≥45.0 kg for females. 2. Healthy as defined by: 1. the absence of clinically significant illness and surgery within 4 weeks prior to dosing. 2. the absence of clinically significant history of neurological, endocrine, cardiovascular, respiratory, hematological, immunological, psychiatric, gastrointestinal, renal, hepatic, and metabolic diseases. 3. Female participants of non-childbearing potential must be: 1. post-menopausal (spontaneous amenorrhea for at least 12 consecutive months prior to dosing) with confirmation by documented follicle- stimulating hormone (FSH) levels ≥40 mIU/mL; or 2. surgically sterile (bilateral oophorectomy, bilateral salpingectomy, hysterectomy, or bilateral tubal ligation) at least 3 months prior to dosing. 4. Able to understand the study procedures, agree to comply with all study visits, procedures, and restrictions, agree to comply with the prescribed dosage regimens and communicate to study personnel about AEs and concomitant medication use, and provide signed willing to sign a consent form to participate in the study. Who Should NOT Join This Trial: 1. Any clinically significant abnormal finding at physical examination at screening and/or Day -1. 2. Clinically significant abnormal laboratory test results at screening and/or Day -1; or positive serology test results for hepatitis B surface antigen (HBsAg), hepatitis C virus (HCV) antibody, or human weakened immune system virus (HIV) antigen and antibody, or QuantiFERON®-TB test at screening. 3. Any history of suicidal ideation as evidenced by answering "yes" to questions 4 or 5 on the suicidal ideation portion of the C-SSRS completed at screening, or any history of suicide attempts. 4. Any history of clinical depression. ...See full criteria on ClinicalTrials.gov Always talk to your doctor about whether this trial is right for you.

Original Eligibility Criteria

View original clinical language
Inclusion Criteria: 1. Male or female, non-smoker (no use of tobacco or nicotine products within 3 months prior to screening), ≥18 and ≤55 years of age, with body mass index (BMI) \>18.5 and \<32.0 kg/m2 and body weight ≥50.0 kg for males and ≥45.0 kg for females. 2. Healthy as defined by: 1. the absence of clinically significant illness and surgery within 4 weeks prior to dosing. 2. the absence of clinically significant history of neurological, endocrine, cardiovascular, respiratory, hematological, immunological, psychiatric, gastrointestinal, renal, hepatic, and metabolic diseases. 3. Female participants of non-childbearing potential must be: 1. post-menopausal (spontaneous amenorrhea for at least 12 consecutive months prior to dosing) with confirmation by documented follicle- stimulating hormone (FSH) levels ≥40 mIU/mL; or 2. surgically sterile (bilateral oophorectomy, bilateral salpingectomy, hysterectomy, or bilateral tubal ligation) at least 3 months prior to dosing. 4. Able to understand the study procedures, agree to comply with all study visits, procedures, and restrictions, agree to comply with the prescribed dosage regimens and communicate to study personnel about AEs and concomitant medication use, and provide signed informed consent to participate in the study. Exclusion Criteria: 1. Any clinically significant abnormal finding at physical examination at screening and/or Day -1. 2. Clinically significant abnormal laboratory test results at screening and/or Day -1; or positive serology test results for hepatitis B surface antigen (HBsAg), hepatitis C virus (HCV) antibody, or human immunodeficiency virus (HIV) antigen and antibody, or QuantiFERON®-TB test at screening. 3. Any history of suicidal ideation as evidenced by answering "yes" to questions 4 or 5 on the suicidal ideation portion of the C-SSRS completed at screening, or any history of suicide attempts. 4. Any history of clinical depression. 5. C-SSRS score at Day -1 (baseline) above Type 1 ideation. 6. PHQ-8 total score ≥5 at screening and/or Day -1 (baseline).

Treatments Being Tested

BIOLOGICAL

ALTB-268

monoclonal antibody

OTHER

Placebo

Saline solution

Locations (1)

Syneos Health Clinical Research Services, LLC
Miami, Florida, United States