A Phase 1 interventional study of RAB001 400 μg/kg group and RAB001 750 μg/kg group in Osteonecrosis of the Femoral Head, sponsored by ZhongShan LaiBo RuiChen BioMedicine Co.,Ltd.. Completed at 1 site in China. Open to participants aged 18 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-04-22.
Sponsored by ZhongShan LaiBo RuiChen BioMedicine Co.,Ltd. · Phase 1, Interventional, and Health services research
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This trial is a single center, randomized, double-blind, placebo-controlled dose escalation study aimed at examining the safety, tolerability, and pharmacokinetics/pharmacodynamics of single and multiple injections of RAB001 in healthy subjects.
According to the results of Phase I clinical trials abroad, two dose groups (400 μ g/kg and 750 μ g/kg) were established, with 8 healthy subjects enrolled in each dose group (6 in the experimental group and 2 in the placebo group), for a total of 16 healthy subjects. Each dose group is divided into two stages.
Phase 1: Single dose administration phase Subjects who meet the inclusion criteria will first undergo a single dose study in the 400 μ g/kg dose group. Blood samples will be collected at predetermined time points for single dose PK, PD, and immunogenicity evaluation. After the single dose, safety and tolerance data will be collected for 14 days. If the subjects are tolerant, a single dose study in the 750 μ g/kg dose group can be conducted. After the dose increases to the maximum dose of 750 μ g/kg as designed in this experiment, the next dose will not be administered.
Phase 2: Multiple administration phase Single dose administration is combined with multiple dose administration. If the subjects can tolerate it during the single dose phase, they will enter the multiple dose study phase, which will be administered once every 2 weeks, on days 15, 29, and 43 respectively. Collect blood samples at predetermined time points for PK, PD, and immunogenicity evaluation, observe for 14 days after the last administration, and collect safety and tolerability data.
This experiment adopts a step-by-step increasing method for dose escalation, and the next dose group must complete the safety and tolerability evaluation of a single dose in the previous dose group before starting. Each subject only receives one corresponding dose.
25 studies on the registry are indexed under Legg-Calve-Perthes Disease; 7 are open to participants now.
This study's enrollment of 16 is below the median of 30 across 15 interventional studies indexed under Legg-Calve-Perthes Disease.
Browse Legg-Calve-Perthes Disease studies →ZhongShan LaiBo RuiChen BioMedicine Co.,Ltd. is the lead sponsor of 3 studies on the registry; 1 is open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECG (electrocardiogram)
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis B tests
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis C tests
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The subjects received intravenous administration of RAB001
Drug: RAB001 400 μg/kg group · Drug: RAB001 750 μg/kg group
The subjects received intravenous administration of normal saline
Drug: Normal saline
The subjects received intravenous administration of RAB001 400 μ g/kg on day 1、15、29、43
The subjects received intravenous administration of RAB001 750 μ g/kg on day 1、15、29、43
The subjects received intravenous administration of normal saline on day 1、15、29、43
Adverse events
Adverse events,evaluate the safety of single injections of RAB001 at different doses
Time frame: 14 days after single injections
Serious adverse events
serious adverse events during the study
Time frame: 14 days after single administration
Adverse events
Adverse events evaluate the safety and tolerability of multiple injections of RAB001 at different doses
Time frame: 14 days after multiple administrations
Serious adverse events
Serious adverse events during the study,evaluate the safety of multiple injections of RAB001 at different doses
Time frame: 14 days after multiple administrations
PK parameter Cmax
PK parameter Cmax :Maximum peak plasma concentration (Cmax)
Time frame: The 0-24 hours after dosing on Day 1 and the 0-24 hours after dosing on Day 15
PK parameter AUC0-t
PK parameter AUC0-t:Area under the concentration-time curve (AUC0-t) from time zero to time "t" .
Time frame: The 0-24 hours after dosing on Day 1 and the 0-24 hours after dosing on Day 15.
PK parameter AUC0-∞
PK parameter AUC0-∞:AUC from time zero to infinity (AUC0-∞) .
Time frame: The 0-24 hours after dosing on Day 1 and the 0-24 hours after dosing on Day 15.
PK parameter Tmax
PK parameter Tmax.Time of Cmax (Tmax).
Time frame: The 0-24 hours after dosing on Day 1 and the 0-24 hours after dosing on Day 15.
PK parameter T1/2z
PK parameter T1/2z:Terminal-phase elimination half-life (t1/2) .
Time frame: The 0-24 hours after dosing on Day 1 and the 0-24 hours after dosing on Day 15.
PK parameter-Vz/F
PK parameter-Vz/F:Apparent Volume of Distribution During the Terminal Phase (Vz/F) of RAB001 in Plasma
Time frame: The 0-24 hours after dosing on Day 1 and the 0-24 hours after dosing on Day 15.
PK parameter-CL
PK parameter-CL:Systemic Clearance (CL) of RAB001
Time frame: The 0-24 hours after dosing on Day 1 and the 0-24 hours after dosing on Day 15.
PK parameter λz
PK parameter λz:Apparent Terminal Elimination Rate Constant (λZ) of
Time frame: The 0-24 hours after dosing on Day 1 and the 0-24 hours after dosing on Day 15.
PK Parameter: CLss
PK Parameter: CLss , the apparent systemic clearance from plasma observed during a dosing interval at steady state following extravascular administration
Time frame: The 0-24 hours after dosing on Day 1 and the 0-24 hours after dosing on Day 15.
Bone turnover marker: BALP
Change in Serum Bone Alkaline Phosphatase (BALP) Level
Time frame: Day 1、8 、15、29、43 、 57
Bone turnover marker: PINP levels
PINP (N-terminal Propeptide of Type I Procollagen) Bone Turnover Marker Levels
Time frame: Day 1、8 、15、29、43 、57
Bone turnover marker: Osteocalcin (OC) Levels
the bone turnover marker : Osteocalcin (OC) Levels
Time frame: Day 1、8 、15、29、43 、 57
Bone turnover marker:CTX-I Levels
CTX-I (C-terminal Telopeptide of Type I Collagen )Levels the bone turnover marker
Time frame: Day 1、8 、15、29、43 、57
Bone turnover marker: VEGF
Bone turnover marker: VEGF vascular endothelial growth factor
Time frame: Day 1、8 、15、29、43、57
Plan to share: No
No publications or documents are linked to this record.
Ran from Feb 2023 to primary completion in Jul 2023, 4 months.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Apr 2026. You cannot join it, but the record below documents what was studied.
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ZhongShan LaiBo RuiChen BioMedicine Co.,Ltd.