A Phase 1 interventional study of SSS67 Injection and Placebo in Healthy, sponsored by Shenyang Sunshine Pharmaceutical Co., LTD.. Not yet recruiting at 2 sites in 2 countries. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-03-23.
Sponsored by Shenyang Sunshine Pharmaceutical Co., LTD. (part of 3SBio Inc.) · Phase 1, Interventional, and Treatment
This is a randomized, double-blind, placebo-controlled, single ascending dose phase I clinical study to evaluate the safety, tolerability, PK, preliminary PD and immunogenicity of SSS67 in healthy adult participants after single intravenous infusion.
The primary objective is to assess the safety and tolerability of SSS67 following single ascending doses.
The secondary objectives are to characterize the PK, PD, and anti-drug antibody (ADA) profiles of SSS67 after single administration.
The exploratory objective is to evaluate changes in body weight, waist circumference, and other related metabolic parameters following a single dose of SSS67.
Shenyang Sunshine Pharmaceutical Co., LTD. is the lead sponsor of 40 studies on the registry; 23 are 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.
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.
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.
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.
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.
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
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.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.
The study may name a correction formula and a limit in milliseconds, often around 450–480.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
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.
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.
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.
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.
Childbearing potential
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
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.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hypersensitivity
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
QT and QTc
On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.
The study may name a correction formula and a limit in milliseconds, often around 450–480.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Metastases
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
This is a single-dose group. 2 participants will be enrolled and receive a single intravenous infusion of SSS67 at 1 mg/kg on Day 1. No placebo is administered in this group.
Drug: SSS67 Injection
This is a single-dose group. 10 participants will be enrolled: 8 receive a single intravenous infusion of SSS67 at 5 mg/kg on Day 1, and 2 receive matching placebo on Day 1.
Drug: SSS67 Injection · Drug: Placebo
This is a single-dose group. 10 participants will be enrolled: 8 receive a single intravenous infusion of SSS67 at 15 mg/kg on Day 1, and 2 receive matching placebo on Day 1.
Drug: SSS67 Injection · Drug: Placebo
This is a single-dose group. 10 participants will be enrolled: 8 receive a single intravenous infusion of SSS67 at 30 mg/kg on Day 1, and 2 receive matching placebo on Day 1.
Drug: SSS67 Injection · Drug: Placebo
This is a single-dose group. 10 participants will be enrolled: 8 receive a single intravenous infusion of SSS67 at 45 mg/kg on Day 1, and 2 receive matching placebo on Day 1.
Drug: SSS67 Injection · Drug: Placebo
This is a single-dose group. 10 participants will be enrolled: 8 receive a single intravenous infusion of SSS67 at 60 mg/kg on Day 1, and 2 receive matching placebo on Day 1.
Drug: SSS67 Injection · Drug: Placebo
In this Phase 1 single ascending dose trial, SSS67 Injection will be administered via intravenous infusion.
Participants will receive a single dose of matching placebo in accordance with their randomly assigned treatment group.
Incidence and severity of AEs
Time frame: Day 57
Peak concentration
Time frame: Day 57
Incidence of antidrug antibodies (ADAs) to SSS67 over time
Time frame: Day 57
Bone formation biomarker
Time frame: Day 57
bone resorption biomarker
Time frame: Day 57
Plan to share: No — Due to the nature of the study and privacy concerns, de-identified individual participant data will not be made available to external researchers.
No publications or documents are linked to this record.
Start is estimated for Mar 2026; primary completion for Aug 2026, 4 months later.
How these figures are worked out, and which studies are left out of them.
This study is not yet recruiting, as verified in Mar 2026. You cannot join it, but the record below documents what was studied.
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