ClinicalTrials.gg
Active, not recruitingNCT04725474GDFATHERUpdated Aug 19, 2026

First-in-Human Study of the GDF-15 Neutralizing Antibody Visugromab (CTL-002) in Patients With Advanced Cancer (GDFATHER)

A Phase 1/2 interventional study of visugromab (CTL-002) and nivolumab in Solid Tumor, Adult, sponsored by CatalYm GmbH. Active, not recruiting at 13 sites in 3 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-19.

Sponsored by CatalYm GmbH · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
199
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

The Phase 1 part (Part A) is a dose escalation study of IV visugromab (CTL-002, a monoclonal antibody neutralizing GDF-15) as monotherapy and in combination with an approved checkpoint inhibitor (CPI) in patients with advanced solid tumors.

Enrolment into the Ph 1 part is completed.

The Phase 2 parts (Part B) are cohort expansions with visugromab (CTL-002) in combination with a defined CPI at a fixed dose into seven different solid tumor indications.

Enrolment into the Ph 2 part is completed.

02

Conditions studied

  • Solid Tumor, Adult

Keywords

  • CTL-002
  • GDF-15
  • visugromab
03

In context

Lead sponsor

CatalYm GmbH is the lead sponsor of 6 studies on the registry; 4 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Main Inclusion Criteria:

  • Signed and dated , and able to comply with the study procedures and any locally required authorization.
  • Male or female aged ≥ 18 years.
  • or cytologically confirmed/documented diagnosis of advanced-stage, solid tumors in non-curable state as per current clinical knowledge (specific for Germany: who have exhausted all available approved standard treatments) or are not eligible for them anymore).
  • Part A: At least one /PD-L1 treatment (alone or in combination) and progressed on or relapsed after completion of the anti-PD-1/PD-L1 treatment (with a minimum of 12 weeks of anti-PD1/PD-L1 exposure).
  • Part B: (1) bladder cancer, hepatocellular cancer, non-small cell lung cancer or melanoma (cutaneous and mucosal forms, not uveal/ocular) that relapsed on or were primary refractory to prior anti-PD-1/PD-L1 therapy with an approved anti-PD-1/PD-L1 compound (with a minimum of 12 weeks of anti-PD-1/PD-L1 exposure; specific for Germany: and have exhausted all available approved standard treatments or are not eligible for them anymore); (2) colorectal cancer (MSS/mismatch-repair competent) and have not received any prior anti-PD-1/PD-L1 therapy (Not applicable in Germany); (3) biomarker cohort with mixed solid tumors ("basket" cohort;) that relapsed on or were primary refractory to prior anti-PD1/PD-L1 therapy with an approved anti-PD-1/PD-L1 compound and that have exhausted available approved therapies for their disease or do not qualify for them anymore (specific for Germany: and have exhausted all available approved standard treatments or are not eligible for them anymore).
  • -accessible tumor lesions and willing to undergo triple sequential tumor biopsy (Part A) and dual biopsy (Part B, only for selected cohorts).
  • At least 1 radiologically per V1.1/ (Part B).
  • (ECOG) performance status 0-1.
  • > 3 months as assessed by the Investigator.
  • Adequate organ function (bone marrow, hepatic, renal function and coagulation).

Main Exclusion Criteria:

  • Pregnant or breastfeeding.
  • Any tumor-directed therapy within 21 days before study treatment.
  • Treatment with agent within 21 days before study treatment.
  • Radiotherapy within 14 days before study treatment.
  • Pre-existing arrhythmia, uncontrolled angina pectoris, uncontrolled heart failure () Grade IV, any myocardial infarction/coronary event, CNS-ischemic event and any thromboembolic event at any time \< 6 months prior to Screening or presence of any uncontrolled heart failure NYHA Grade III or higher.
  • (LVEF) \< 50% measured by echocardiogram or MUGA.
  • > 450 ms for men or > 470 ms for women.
  • Any active disease requiring systemic treatments. .
  • Any history of non-infectious pneumonitis \< 6 months prior to Screening.
  • Any active inflammatory bowel disease such as Crohn's disease or ulcerative colitis which are generally excluded or active autoimmunthyroiditis present \< 6 months prior to Screening.
  • History of CNS disease such as stroke, seizure, encephalitis, or multiple sclerosis (\< 6 months prior to Screening).
  • Ongoing immune-related AEs (irAEs) and/or AEs ≥ Grade 2 not resolved from previous therapies except vitiligo, stable peripheral sensory neuropathy up to Grade 2, hair loss, and stable endocrinopathies with substitutive hormone therapy.
  • History of or clinical evidence of CNS primary tumors or including , unless they have been previously treated, demonstrated no progression at least for 3 months before Screening, are asymptomatic and have had no requirement for or enzyme inducing anticonvulsants in the last 14 days before Screening.
  • Evidence for active infection with (HIV), virus (HBV), virus (HCV), tuberculosis (TB), or severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
Terms in these criteria, in plain language(22)

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.

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.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

PD-1, PD-L1 and checkpoint inhibitors

PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.

PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

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.

iRECIST and mRECIST

Versions of RECIST adapted to particular cases. iRECIST is for immunotherapy, where a tumour can look bigger for a while before it shrinks, so growth has to be confirmed on a later scan. mRECIST usually means the version for liver cancer (hepatocellular carcinoma), which measures only the part of a tumour that still has a blood supply.

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.

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.

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.

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.

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.

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.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Metastases

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

Leptomeningeal disease

Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.

Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.

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.

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.

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.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
199 participants (actual)

Study arms

  • Experimental
    Phase 1 (Part A; dose escalation): CTL-002 Monotherapy + Checkpoint Inhibitor Combination

    Up to 5 dose levels with visugromab (CTL-002) administered as IV monotherapy and in combination with a CPI

    Biological: visugromab (CTL-002) · Biological: nivolumab

  • Experimental
    Phase 2 (Part B; expansion): visugromab (CTL-002) + Checkpoint Inhibitor Combination

    At defined dose level(s) with visugromab (CTL-002)

    Biological: visugromab (CTL-002) · Biological: nivolumab

Interventions

06

What researchers measure

Primary outcomes

  1. Adverse Events (Parts A & B)

    Incidence of treatment emergent adverse events in monotherapy and/or combination therapy

    Time frame: min. 2 months

  2. Determination of DLT and MTD (Part A)

    Assessment of toxicities in monotherapy and/or combination therapy per dose level

    Time frame: 28 days

  3. Evaluation of clinical efficacy according RECIST V1.1 (Part B)

    RECIST V1.1 is measured every 6-8 weeks treatment

    Time frame: min. 6 weeks

Secondary outcomes

  1. Cmax following the first dose of CTL-002 (Part A & B)

    PK parameter from serum CTL-002 levels

    Time frame: 1 day

  2. AUC following the first dose of CTL-002 (Part A & B)

    PK parameter from serum CTL-002 levels

    Time frame: 14 days

  3. Half-life of CTL-002 (Part A & B)

    PK parameter from serum CTL-002 levels

    Time frame: min. 6 weeks

  4. Evaluation of treatment-emergent cytokine/chemokine concentrations (Part A & B)

    Measurement of concentration in peripheral blood

    Time frame: min. 6 weeks

  5. Evaluation of treatment-induced anti-drug antibodies (ADA) (Part A & B)

    Time frame: min. 6 weeks

  6. Evaluation of clinical efficacy according RECIST V1.1 (Part A)

    RECIST V1.1 is measured every 6-8 weeks during treatment

    Time frame: min. 6 weeks

  7. Evaluation of appetite (Part A)

    Assessment of appetite via quality of life questionnaire

    Time frame: min. 6 weeks

  8. Assessment of Body-Mass-Index (BMI) (kg/m2) (Part A)

    Calculation of BMI in kg/m2 by combining measurement of body weight in kg and body height in cm

    Time frame: min. 6 weeks

  9. Assessment of lumbar vertebra skeletal muscle index (L3SMI) (cm2/m2) (Parts A & B)

    Combining measurement of L3 vertebra skeletal muscle mass via computed tomography (CT) in cm2 and patient height (squared) in m2

    Time frame: min. 6 weeks

07

Study locations

13 sites
08

References and documents

Publications

  • Melero I, de Miguel M, Cabanas EG, de Velasco G, Joerger M, Martin-Liberal J, Reig M, Konig D, Trojan J, Goebeler ME, Schuler M, Alonso G, Dummer R, Rodriguez-Ruiz ME, Yarza R, Pretelli G, Esteban-Villarubia J, Koster KL, Viltro PS, Sanduzzi-Zamparelli M, Laubli H, Koch C, Sayehli C, Gromke T, Racca F, Ramelyte E, Galle PR, Necchi A, Reck M, Trajanoski Z, Hackl H, Gogolla F, Billing J, Sattmann T, Wischhusen J, Schuberth-Wagner C, Akdemir J, Lichtenegger FS, Auckenthaler A, Fox M, Klar K, Fettes P, Liebig M, Amin A, Sachdeva S, Hermann F, Leo E. Long-term follow-up of a phase 1/2 trial of anti-GDF-15 antibody visugromab plus anti-PD-1 antibody nivolumab in anti-PD-1/-L1 relapsed/refractory solid tumors. J Hematol Oncol. 2026 Jul 9. doi: 10.1186/s13045-026-01818-2. Online ahead of print. PubMed 42426863 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 19, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04725474
Lead sponsor
CatalYm GmbH
Responsible party
Sponsor
First posted
Jan 26, 2021
Start date
Dec 9, 2020
Primary completion
Apr 30, 2028 (estimated)
Completion
Apr 30, 2030 (estimated)
Last update
Aug 19, 2026

Study contacts

Frank Hermann, MD
study director · CatalYm GmbH

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Visugromab

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