ClinicalTrials.gg
RecruitingNCT06926283Updated Sep 23, 2026

A Study of DXC008 in Patients With Prostate Cancer and Other Solid Tumors

A Phase 1 interventional study of DXC008 in Prostate Cancer, Other Solid Tumors and Ewing Sarcoma, sponsored by Hangzhou DAC Biotechnology Co., Ltd.. Recruiting at 4 sites in China. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-09-23.

Sponsored by Hangzhou DAC Biotechnology Co., Ltd. · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Started May 2025; still recruiting 1 year 5 months later.
Phase
Phase 1
Study type
Interventional
Enrollment
110
Allocation
Not applicable
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This is a phase I, open-label, first-in-human clinical study designed to evaluate the safety, tolerability, MTD, DLT, RP2D, the PK characteristics, preliminary anti-tumor activity, the immunogenicity of DXC008 in patients with prostate cancer and other solid tumors such as Ewing sarcoma.

02

Conditions studied

  • Prostate Cancer
  • Other Solid Tumors
  • Ewing Sarcoma
03

In context

Prostatic Neoplasms

7,046 studies on the registry are indexed under Prostatic Neoplasms; 1,580 are open to participants now.

This study's planned enrollment of 110 is above the median of 60 across 5,348 interventional studies indexed under Prostatic Neoplasms.

Browse Prostatic Neoplasms studies →

Lead sponsor

Hangzhou DAC Biotechnology Co., Ltd. is the lead sponsor of 6 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

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.

Inclusion criteria

  1. Those who voluntarily sign the ICF and follow the protocol requirements.
  2. Male or female.
  3. Age: ≥ 18 years and ≤ 75 years.
  4. Expected ≥ 6 months.
  5. performance status score: 0-2.
  6. Patients with various solid tumors who have failed standard treatment, including but not limited to progressive mCRPC.
  7. Prostate Cancer: Serum testosterone level during screening and prior to the first dose of product: ≤50 ng/dL (≤1.73 nmol/L).
  8. Prostate Cancer is divided into two cohorts: Cohort 1: At least one as defined by v1.1. Cohort 2: At least one lesion on CT/MRI, or bone scan imaging at baseline.Patients are assigned to the appropriate cohort as assessed by the investigator; the study procedures in Cohort 1 and Cohort 2 may be performed in parallel and simultaneously,it is not necessary to wait until all procedures in either cohort have been completed before initiating procedures in the other cohort.Other solid tumors:At least one measurable lesion as defined by RECIST v1.1.
  9. Toxicities from prior antitumor therapy must have recovered to Grade ≤ 1 as defined in the v5.0 (except alopecia), or Grade 2 as defined by NCI-CTCAE v5.0, except for toxicity not constituting a safety risk by investigator judgment (eg, Grade 2 peripheral neurotoxicity).
  10. Organ function of the subjects must meet the following requirements:

    Hematology:

    1. ≥ 1.5 × 10\^9/L (prior use of G-CSF is allowed, but G-CSF use is not allowed within 7 days prior to the screening laboratory tests).
    2. count ≥100×10\^9/L (platelet transfusion is not allowed within 7 days before the screening laboratory tests).
    3. HGB ≥ 90 g/L (RBC transfusion or recombinant human erythropoietin use is allowed; RBC transfusion is not allowed within 7 days prior to the screening laboratory tests).

    Liver function:

    1. Total (TBIL) ≤1.5×, except for subjects with congenital bilirubinemia, such as Gilbert syndrome (direct bilirubin ≤1.5×ULN).
    2. and ALT ≤ 3.0 × ULN.For patients with liver metastases, both AST and ALT ≤5×ULN.

    Renal function:

    Ccr ≥ 60 mL/min; or creatinine ≤ 1.5 × ULN; urinalysis results show protein urine ≤ 1 +. For subjects with urine protein ≥2+ in urinalysis during the screening period, a 24-hour urine protein quantification should be performed, and those with 24-hour urine protein quantification ≤1 g can be enrolled.

    Coagulation function:

    1. ≤1.5.
    2. APTT or PT ≤ 1.5 × ULN. ≥50%.
  11. Subjects and their spouses agree to use effective instrumental or pharmacologic (excluding safe period contraception) from the time of ICF signing until 6 months after the last dose of investigational product.

Exclusion criteria

Exclusion Criteria:

  1. Within 14 days prior to the first dose: Have undergone plasmapheresis, treated with prednisone at > 10 mg/day for > 3 consecutive days or equivalent dose of systemic or equivalent anti-inflammatory medication (Those who have received short-term treatment with such medications for the prevention of contrast media allergy may be enrolled).
  2. Have received systemic antineoplastic therapy or product treatment within 28 days or 5 half-lives (whichever is shorter) prior to the first dose, have received radiotherapy within 14 days prior to the first dose.
  3. Have received monoclonal antibody therapy for anti-tumor purposes within 30 days prior to the first dose.
  4. History of solid organ transplantation.
  5. Ewing sarcoma:Prior treatment with XXX-targeted therapy (in Phase Ia clinical study only) Other olid tumors:Prior treatment with XXX-targeted therapy or topoisomerase inhibitors (in Phase Ia clinical study only).
  6. Presence of meningeal or .
  7. Evidence of cardiovascular risk, including any of the following:

    1. interval ≥ 470 msec (QT interval must be corrected for heart rate using the Fridericia formula [QTcF]).
    2. Evidence of current untreated arrhythmias, including clinically significant abnormalities including second-degree (Mobitz Type II) or third-degree atrioventricular (AV) block.
    3. Within 6 months before screening, history of myocardial infarct, acute coronary syndrome (including unstable angina pectoris), coronary angioplasty or stent implantation, or bypass grafting.
    4. Class III or IV heart failure - as defined by the Functional Classification.
    5. Uncontrolled severe hypertension: systolic blood pressure ≥160 mmHg and/or diastolic blood pressure ≥ 100 mmHg.
  8. Have dyspnea or any current condition that needs continuous oxygen therapy, or current active pneumonia or interstitial lung diseases (except mild cases as judged by the investigator).
  9. History of other primary , except for the following: malignancies that have been cured and have a very low risk of recurrence within 5 years, such as basal cell carcinoma and squamous cell carcinoma of the skin, carcinoma in situ of the cervix or breast.
  10. Have severe unhealed wound, ulceration or bone fracture, or have received major surgery within 28 days prior to administration or expected major surgery during the clinical study.
  11. Prior history of allergy to any component or of DXC008.
  12. Active with HBV-DNA greater than central or greater than 1000 copies/mL, active (Hepatitis C virus antibody positive with HCV RNA greater than lower limit of detection value).
  13. Known to be seropositive for the ; have active syphilis (only patients with a positive syphilis antibody are eligible for enrollment in the study), possible presence of active tuberculosis (chest imaging within 3 months prior to the first dose indicates active tuberculosis infection).
  14. Patients with active bleeding within 30 days before screening, or, judged by the investigator, to be at risk of massive digestive tract hemorrhage, hemoptysis, etc.; or with hereditary bleeding tendency or coagulation disorder, or bleeding symptoms requiring other medical intervention.
  15. Have experienced serious arterial/venous thrombosis events within 6 months prior to the first dose, such as cerebrovascular accident (including transient cerebral ischemic attack), deep venous thrombosis, pulmonary embolism.
  16. Female subjects with positive serum pregnancy test or who are breastfeeding.
  17. Those with active infection requiring drug intervention ( ≥ Grade 2) within 2 weeks prior to the first dose of study treatment, uncontrollable pleural effusion, ascites, pericardial effusion requiring repeated drainage.
  18. Have received vaccination with within 28 days prior to the first dose or planned to receive such vaccination during the study period.
  19. Patients with other conditions judged by the investigator that may have adverse effect on the patient's participation in the study.
Terms in these criteria, in plain language(27)

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.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

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.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

CTCAE grade

The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.

1
Mild.
2
Moderate.
3
Severe.
4
Life-threatening.
5
Death due to the event.

“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

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.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

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.

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.

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.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

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.

Excipients

The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.

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.

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.

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.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
110 participants (estimated)

Study arms

  • Experimental
    DXC008

    Drug: DXC008

Interventions

  • DrugDXC008

    Cohort A: Once every 2 weeks (Q2W) with a cycle length of 14 days. Cohort B: Once every 3 weeks (Q3W) with a cycle length of 21 days.

06

What researchers measure

Primary outcomes

  1. Number of participants that experienced dose limiting toxicities(DLTs) at given dose level.

    Dose Limiting Toxicities (DLTs) In Order to Determine the Maximum Tolerated.

    Time frame: 28 days

  2. Number of participants with adverse events (AEs).

    The adverse events will be evaluated in accordance with CTCAE v5.0. The investigator shall assess the relationship between the events and investigational product.

    Time frame: After first infusion of study drug, Through study completion an average of 1 year.

Secondary outcomes

  1. Maximum observed serum or plasma concentration (Cmax).

    One of the pharmacokinetics parameters for DXC008 investigator shall assess the relationship between the events and investigational product.

    Time frame: Through study completion an average of 1 year.

  2. Maximum serum drug time (Tmax).

    One of the pharmacokinetics parameters for DXC008.

    Time frame: Through study completion an average of 1 year.

  3. Apparent volume of distribution(Vd).

    One of the pharmacokinetics parameters for DXC008.

    Time frame: Through study completion an average of 1 year.

  4. Measurement of objective response rate (ORR) per RECIST 1.1.

    Percentage of subjects achieving complete response (CR) or partial response (PR).

    Time frame: From date of enrollment until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 1 year.

  5. ORR per Prostate Cancer Working Group 3 (PCWG3).

    Percentage of subjects achieving complete response (CR) or partial response (PR).

    Time frame: From date of enrollment until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 1 year.

07

Study locations

4 of 4 sites recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started May 2025 (actual). Primary completion is estimated for Apr 2030, 59 months after the start.

Of 212 industry-sponsored phase 1 interventional studies under Prostatic Neoplasms, half reached primary completion within 37 months of starting (the median), counting those still running; a quarter within 20 and three quarters within 62. This study's planned 59 months is above that.

Counting every sponsor, half of 455 studies reached it within 43 months; a quarter within 23 and three quarters within 68.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 7, 2025
First posted
Apr 13, 2025
StartActual
May 15, 2025
Primary completionEst.
Apr 2030
CompletionEst.
Apr 2030
Last update
Sep 23, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 23, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06926283
Responsible party
Sponsor
First posted
Apr 13, 2025
Start date
May 15, 2025
Primary completion
Apr 2030 (estimated)
Completion
Apr 2030 (estimated)
Last update
Sep 23, 2026

Study contacts

Pengyu Shi, Doctor
Contact
Shipengyu@dacbiotech.com
+86-0571-56050590

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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