AzTrials
AzTrials

Advanced Solid Tumor CancerPhase 1NCT04777994

Study With ABBV-CLS-484 in Participants With Locally Advanced or Metastatic Tumors

A Phase 1 study testing ABBV-CLS-484, Vascular Endothelial Growth Factor Receptor (VEGFR) Tyrosine Kinase Inhibitor (TKI) and Programmed Cell Death-1 (PD-1) Inhibitor in people with Advanced Solid Tumor Cancer, run by Calico Life Sciences LLC at 30 sites in 6 countries.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

The study will assess the safety, PK, PD, and preliminary efficacy of ABBV-CLS-484 as monotherapy and in combination with a PD-1 targeting agent or with a or a vascular endothelial growth factor receptor (VEGFR) tyrosine kinase inhibitor (TKI). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Advanced Solid Tumor Cancer
What is being tested?
ABBV-CLS-484, Vascular Endothelial Growth Factor Receptor (VEGFR) Tyrosine Kinase Inhibitor (TKI) and Programmed Cell Death-1 (PD-1) Inhibitor
Could I receive a placebo?
No, everyone receives an active treatment
How many people
248 participants
Where
30 sitesin 6 countries
Study dates
9 Mar 2021to Oct 2026
Phase
Phase 1
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Must weigh at least 35 kilograms (kg).
  • An Eastern Cooperative Oncology Group (ECOG) performance status <= 2.
  • Life expectancy of >= 12 weeks.
  • Laboratory values meeting protocol criteria.
  • QT interval corrected for heart rate < 470 msec (using Fridericia's correction), and no clinically significant electrocardiographic findings.
  • Measurable disease defined by RECIST 1.1 criteria.
Show all 25Show fewer
  • For Monotherapy and Combination Dose Escalation:
  • Participants with histologically or cytologically proven metastatic or locally advanced tumors, for which no effective standard therapy exists, or where standard therapy has failed. Participants must have received at least 1 prior systemic anticancer therapy for the indication being considered.
  • For Monotherapy Dose Expansion only:
  • Participants must have received at least 1 prior line containing PD-1/PD-L1 targeted therapy with a best response by RECIST v1.1 of CR/PR/stable (any duration) or stable disease (for greater than 6 months); AND
  • Must have been previously treated with 1 or more prior lines of therapy in the locally advanced or metastatic setting with the following tumor types:
  • Relapsed/refractory HNSCC
  • Relapsed/refractory NSCLC
  • Advanced ccRCC
  • For PD-1 Targeting Agent Combination Dose Expansion only:
  • For the following tumor types, subject must have received at least 1 prior line containing PD-1/PD-L1 targeted therapy with response by RECIST v1.1 of CR/PR (any duration) or stable disease (for greater than 6 months):
  • Relapsed HNSCC
  • Relapsed NSCLC
  • Relapsed Advanced ccRCC
  • For the following tumor types, subject must have received at least 1 prior line containing PD-1/PD-L1 targeted therapy and have had disease progression with PD-1/PD-L1 targeted therapy:
  • Locally Advanced or metastatic MSI-H tumors
  • For VEGFR TKI Combination Dose Expansion only:
  • Relapsed advance ccRCC with no more than 1 prior VEGFR TKI
  • Participants no recent history of hemorrhage, including hemoptysis, hematemesis, or melena
  • Participants with poorly controlled hypertension are excluded.

Who cannot join

  • Untreated brain or meningeal metastases (i.e., subjects with history of metastases are eligible provided they do not require ongoing steroid treatment and have shown clinical and radiographic stability for at least 28 days after definitive therapy)
  • Unresolved Grade 2 or higher toxicities related to previous anticancer therapy except alopecia.
  • Unresolved Grade 2 or higher peripheral neuropathy.
  • History of hepatitis B, hepatitis C, or human immunodeficiency virus (HIV) infection.
  • Recent history (within 6 months) of congestive heart failure (defined as New York Heart Association, Class 2 or higher), ischemic cardiovascular event, pericarditis, or clinically significant pericardial effusion or arrythmia.
  • Recent history (within 6 months) of Childs-Pugh B or C classification of liver disease.
Show all 19Show fewer
  • History of clinically significant medical and/or psychiatric conditions or any other reason that, in the opinion of the investigator, would interfere with the subject's participation in this study or would make the subject an unsuitable candidate to receive study drug.
  • History of uncontrolled, clinically significant endocrinopathy.
  • Known gastrointestinal disorders making absorption of oral medications problematic; subject must be able to swallow capsules.
  • If treated with a PD-1/aPD-L1 targeting or other immune-oncology agents in the past, excluded if had prior pneumonitis, prior Grade 3 or higher immune mediated toxicity, hypersensitivity to administered drug or drug related toxicity requiring discontinuation.
  • Active autoimmune disease requiring systemic treatment in past 2-years (exceptions for endocrinopathies, vitiligo or atopic conditions).
  • History of solid organ transplant or allogeneic stem cell transplant.
  • History of other malignancy, with the following exceptions:
  • No known active disease present within >= 3 years before first dose of study treatment and felt to be at low recurrence by investigator.
  • Adequately treated non-melanoma skin cancer or lentigo maligna without evidence of disease.
  • Adequately treated carcinoma in situ without evidence of disease.
  • History of interstitial lung disease or pneumonitis.
  • Major surgery <= 28 days prior to first dose of study drug
  • Known active severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection per local testing practices.

Trial locations and contacts

30 sites in 6 countries. Contact the study team or a site near you to ask about taking part.

Nicole Director Clinical Operations contact

650-754-6200

info@calicolabs.com

30 sites in 6 countries

United States15 sites, 13 recruiting
  • University of Michigan Comprehensive Cancer Center Michigan Medicine /ID# 252010

    Ann Arbor, Michigan, 48109

    Recruiting
  • Johns Hopkins Hospital /ID# 254056

    Baltimore, Maryland, 21287

    Site Coordinator, 443-287-8312

    Recruiting
  • Beth Israel Deaconess Medical Center /ID# 252009

    Boston, Massachusetts, 02215-5400

    Recruiting
  • Dana-Farber Cancer Institute /ID# 249642

    Boston, Massachusetts, 02215

    Recruiting
  • University of Texas Southwestern Medical Center /ID# 251974

    Dallas, Texas, 75390-7208

    Recruiting
  • Duke Cancer Center /ID# 251975

    Durham, North Carolina, 27710

    Site Coordinator, (919) 681-7460

    Recruiting
  • University of Texas MD Anderson Cancer Center /ID# 252004

    Houston, Texas, 77030

    Site Coordinator, 713-792-2121

    Recruiting
  • Carolina BioOncology Institute /ID# 225704

    Huntersville, North Carolina, 28078

    Completed
  • Yale University School of Medicine /ID# 225707

    New Haven, Connecticut, 06510

    Recruiting
  • NYU Laura and Isaac Perlmutter Cancer Center - 34th Street /ID# 257869

    New York, New York, 10016

    Site Coordinator, (212)-731-6230

    Recruiting
  • Perelman Center for Advanced Medicine /ID# 250188

    Philadelphia, Pennsylvania, 19104

    Site Coordinator, (215) 316-5151

    Recruiting
  • UPMC Hillman Cancer Ctr /ID# 225706

    Pittsburgh, Pennsylvania, 15232

    Recruiting
  • Lifespan Cancer Institute at Rhode Island Hospital /ID# 225705

    Providence, Rhode Island, 02903-4923

    Recruiting
  • NEXT Oncology /ID# 225708

    San Antonio, Texas, 78229

    Completed
  • University of Arizona Cancer Center - Tucson /ID# 262698

    Tucson, Arizona, 85724

    Recruiting

Other trials in United States

France4 sites, 4 recruiting
  • Institut Paoli-Calmettes /ID# 260956

    Marseille, Bouches-du-Rhone, 13009

    Recruiting
  • Centre Antoine-Lacassagne /ID# 252606

    Nice, Provence-Alpes-Côte d'Azur Region, 06189

    Recruiting
  • Hopital Foch /ID# 252607

    Suresnes, 92151

    Recruiting
  • IUCT Oncopole /ID# 252673

    Toulouse, Occitanie, 31059

    Recruiting

Other trials in France

Israel3 sites, 3 recruiting
  • Hadassah Medical Center /ID# 252366

    Jerusalem, Jerusalem, 91120

    Recruiting
  • Rabin Medical Center /ID# 263631

    Petah Tikva, Central District, 4941492

    Recruiting
  • The Chaim Sheba Medical Center /ID# 226756

    Ramat Gan, Tel Aviv, 5265601

    Recruiting

Other trials in Israel

South Korea3 sites, 3 recruiting
  • Seoul National University Hospital /ID# 254635

    Seoul, Seoul Teugbyeolsi, 03080

    Recruiting
  • Samsung Medical Center /ID# 260664

    Seoul, Seoul Teugbyeolsi, 06351

    Recruiting
  • Yonsei University Health System Severance Hospital /ID# 260665

    Seoul, 03722

    Recruiting

Other trials in South Korea

Spain3 sites, 3 recruiting
  • Institut Català d'Oncologia (ICO) - L'Hospitalet /ID# 252524

    L'Hospitalet de Llobregat, Barcelona, 08907

    Recruiting
  • Hospital Universitario 12 de Octubre /ID# 257374

    Madrid, Madrid, 28041

    Recruiting
  • Hospital Universitario HM Sanchinarro /ID# 228034

    Madrid, Madrid, 28050

    Recruiting

Other trials in Spain

Japan2 sites, 2 recruiting
  • National Cancer Center Hospital /ID# 225884

    Chuo-ku, Tokyo, 104-0045

    Recruiting
  • Wakayama Medical University Hospital /ID# 252988

    Wakayama, Wakayama, 641-8510

    Recruiting

Other trials in Japan

About this study

Official title: A Phase 1 Study With ABBV-CLS-484 Alone and in Combination in Subjects With Locally Advanced or Metastatic Tumors

The study will assess the safety, PK, PD, and preliminary efficacy of ABBV-CLS-484 as monotherapy and in combination with a PD-1 targeting agent or with a or a vascular endothelial growth factor receptor (VEGFR) tyrosine kinase inhibitor (TKI).

The trial aims to establish a safe, tolerable, and efficacious dose of ABBV-CLS-484 as monotherapy and in combination. The study will be conducted in three parts. Part 1 Monotherapy Dose Escalation, Part 2 Combination Dose Escalation and Part 3 Dose Expansion (Monotherapy and Combination therapy).

Read more

Part 1, ABBV-CLS-484 will be administered alone in escalating dose levels to eligible subjects who have advanced solid tumors.

Part 2, ABBV-CLS-484 will be administered at escalating dose levels in combination with a PD-1 targeting agent or with a VEGFR TKI to eligible subjects who have advanced solid tumors.

Part 3, ABBV-CLS-484 will be administered alone as a monotherapy at the determined recommended dose in subjects with locally advanced or metastatic, relapsed or refractory head and neck squamous cell carcinoma (HNSCC), relapsed or refractory non-small cell lung cancer (NSCLC), and advanced clear cell renal cell carcinoma (ccRCC). ABBV-CLS-484 will also be administered at the determined recommended dose in combination with a PD-1 targeting or with a VEGFR TKI agent in subjects with locally advanced or metastatic, HNSCC, NSCLC, MSI-H tumors refractory to PD-1/PD-L1, and advanced ccRCC.

Being tested
ABBV-CLS-484, Vascular Endothelial Growth Factor Receptor (VEGFR) Tyrosine Kinase Inhibitor (TKI), Programmed Cell Death-1 (PD-1) Inhibitor
Keywords
Cancer, Tumor, anti-PD-1, ABBV-CLS-484, clear cell renal cell carcinoma (ccRCC), head and neck squamous cell carcinoma (HNSCC), non-small cell lung cancer (NSCLC), relapsed or refractory (R/R), Microsatellite instability - high tumors (MSI-H), Vascular Endothelial Growth Factor Receptor (VEGFR) Tyrosine Kinase Inhibitor (TKI)
Medical subject headings
Neoplasms, Carcinoma, Renal Cell, Squamous Cell Carcinoma of Head and Neck, Carcinoma, Non-Small-Cell Lung, Recurrence

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ABBV-CLS-484Drug

    Oral Capsule

  • Vascular Endothelial Growth Factor Receptor (VEGFR) Tyrosine Kinase Inhibitor (TKI)Drug

    Oral Tablet

  • Programmed Cell Death-1 (PD-1) InhibitorDrug

    Intravenous (IV) infusion

Study groups in NCT04777994
Study groupRoleWhat they receive
Monotherapy Dose EscalationExperimentalABBV-CLS-484 will be administered as a monotherapy in subjects with solid tumors
Receives: Drug: ABBV-CLS-484
Combination Dose Escalation with PD-1 InhibitorExperimentalABBV-CLS-484 will be administered in combination with Programmed Cell Death-1 Inhibitor in subjects with solid tumors
Receives: Drug: ABBV-CLS-484; Drug: Programmed Cell Death-1 (PD-1) Inhibitor
Monotherapy ExpansionExperimentalABBV-CLS-484 will be administered at the determined recommended dose in subjects with locally advanced or metastatic, relapsed or refractory head and neck squamous cell carcinoma (HNSCC), relapsed or refractory non-small cell lung cancer (NSCLC), and advanced clear cell renal cell carcinoma (ccRCC)
Receives: Drug: ABBV-CLS-484
Combination Expansion with PD-1 InhibitorExperimentalABBV-CLS-484 will be administered at the determined recommended dose in combination with Programmed Cell Death-1 Inhibitor in subjects with locally advanced or metastatic, HNSCC, NSCLC, MSI-H tumors refractory to PD-1/PD-L1, and advanced ccRCC.
Receives: Drug: ABBV-CLS-484; Drug: Vascular Endothelial Growth Factor Receptor (VEGFR) Tyrosine Kinase Inhibitor (TKI)
Combination Dose Escalation with VEGFR TKIExperimentalABBV-CLS-484 will be administered in combination with a Vascular Endothelial Growth Factor Receptor (VEGFR) Tyrosine Kinase Inhibitor (TKI) in subjects with solid tumors
Receives: Drug: ABBV-CLS-484; Drug: Programmed Cell Death-1 (PD-1) Inhibitor
Combination ExpansionExperimentalABBV-CLS-484 will be administered at the determined recommended dose in combination with VEGFR TKI in subjects with locally advanced or metastatic, HNSCC, NSCLC, MSI-H tumors refractory to PD-1/PD-L1, and advanced ccRCC.
Receives: Drug: ABBV-CLS-484; Drug: Vascular Endothelial Growth Factor Receptor (VEGFR) Tyrosine Kinase Inhibitor (TKI)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Dose Escalation: Maximum Observed Plasma/Serum Concentration (Cmax) Of ABBV-CLS-484 (Monotherapy)

    Maximum plasma/serum concentration of ABBV-CLS-484

    Measured: Baseline Up to Approximately Day 42

  2. Dose Escalation: Maximum Observed Plasma/Serum Concentration (Cmax) Of Programmed Cell Death-1 (PD-1) Inhibitor (Combination therapy)

    Maximum plasma/serum concentration of PD-1 inhibitor

    Measured: Baseline Up to Approximately Day 64

  3. Dose Escalation: Maximum Observed Plasma/Serum Concentration (Cmax) Of VEGFRTKI (Combination therapy) Maximum plasma/serum concentration of PD-1 inhibitor

    Maximum plasma/serum concentration of PD-1 inhibitor

    Measured: Baseline Up to Approximately Day 64

  4. Dose Escalation: Time To Cmax (Tmax) Of ABBV-CLS-484 (Monotherapy)

    The amount of time taken to reach Cmax

    Measured: Baseline Up to Approximately Day 42

  5. Dose Escalation: Time To Cmax (Tmax) Of PD-1 Inhibitor (Combination therapy)

    The amount of time taken to reach Cmax

    Measured: Baseline Up to Approximately Day 64

  6. Dose Escalation Time to Cmax (Tmax) of VEGFR TKI (Combination therapy)

    The amount of time taken to reach Cmax

    Measured: Baseline Up to Approximately Day 64

  7. Dose Escalation: Phase Elimination Rate Half-Life (t1/2) Of ABBV-CLS-484 (Monotherapy)

    Terminal phase elimination half-life (t1/2)

    Measured: Baseline Up to Approximately Day 42

  8. Dose Escalation: Phase Elimination Rate Half-Life (t1/2) Of PD-1 Inhibitor (Combination therapy)

    Terminal phase elimination half-life (t1/2)

    Measured: Baseline Up to Approximately Day 64

  9. Dose Escalation: Phase Elimination Rate Half-Life (t1/2) Of VEGFR TKI (Combination therapy)

    Terminal phase elimination half-life (t1/2)

    Measured: Baseline Up to Approximately Day 64

  10. Dose Escalation: Area Under The Plasma Or Serum Concentration-Time Curve (AUC) Of ABBV-CLS-484 (Monotherapy)

    AUC is the area under the serum concentration versus time curve of the last measurable concentration prior to next dose

    Measured: Baseline Up to Approximately Day 42

  11. Dose Escalation: Area Under The Plasma Or Serum Concentration-Time Curve (AUC) Of PD-1 Inhibitor (Combination therapy)

    AUC is the area under the serum concentration versus time curve of the last measurable concentration prior to next dose

    Measured: Baseline Up to Approximately Day 64

  12. Dose Escalation: Area Under The Plasma Or Serum Concentration-Time Curve (AUC) Of VEGFR TKI (Combination therapy)

    AUC is the area under the serum concentration versus time curve of the last measurable concentration prior to next dose

    Measured: Baseline Up to Approximately Day 64

  13. Dose Escalation: Recommended Phase 2 Dose (RP2D) and/or Maximum Tolerated Dose of ABBV-CLS-484

    The MTD and/or RP2D of ABBV-CLS-484 will be determined during the monotherapy therapy dose escalation phase of the study

    Measured: Baseline Up to Approximately Day 42

  14. Dose Escalation: Recommended Phase 2 Dose (RP2D) and/or Maximum Tolerated Dose of ABBV-CLS-484 and a PD-1 Inhibitor (Combination therapy)

    The MTD and/or RP2D of ABBV-CLS-484 and PD-1 inhibitor will be determined during the combination therapy dose escalation phase of the study

    Measured: Baseline Up to Approximately Day 64

  15. Dose Escalation: Recommended Phase 2 Dose (RP2D) and/or Maximum Tolerated Dose of ABBV-CLS-484 and a VEGFR TKI (Combination therapy)

    The MTD and/or RP2D of ABBV-CLS-484 and VEGFR TKI will be determined during the combination therapy dose escalation phase of the study

    Measured: Baseline Up to Approximately Day 64

  16. Dose Expansion: Objective Response Rate (ORR) Of ABBV-CLS-484 Based On Response Evaluation Criteria In Solid Tumors (RECIST) v1.1 (Monotherapy)

    ORR is defined as achieving complete response (CR) or partial response (PR) based on RECIST 1.1 criteria on treatment

    Measured: Baseline Up to Approximately Day 42

  17. Dose Expansion: Objective Response Rate (ORR) Of ABBV-CLS-484 And PD-1 Targeting Agent Based On Response Evaluation Criteria In Solid Tumors (RECIST) v1.1 (Combination therapy)

    ORR is defined as achieving complete response (CR) or partial response (PR) based on RECIST 1.1 criteria on treatment

    Measured: Baseline Up to Approximately Day 64

  18. Dose Escalation: Objective Response Rate (ORR) Of ABBV-CLS-484 And VEGFR TKI Based On Response Evaluation Criteria In Solid Tumors (RECIST) v1.1 (Combination therapy)

    ORR is defined as achieving complete response (CR) or partial response (PR) based on RECIST 1.1 criteria on treatment

    Measured: Baseline Up to Approximately Day 64

Secondary outcomes (3)
  1. Dose Escalation: Objective Response Rate (ORR) Of ABBV-CLS-484 Based On (RECIST) v1.1 (Monotherapy)

    ORR is defined as achieving complete response (CR) or partial response (PR) based on RECIST 1.1 criteria on treatment

    Measured: Baseline through Study Completion (approximately 3 years)

  2. Dose Escalation: Objective Response Rate (ORR) Of ABBV-CLS-484 And PD-1 Targeting Agent Based On Response Evaluation Criteria In Solid Tumors (RECIST) v1.1 (Combination therapy)

    ORR is defined as achieving complete response (CR) or partial response (PR) based on RECIST 1.1 criteria on treatment

    Measured: Baseline through Study Completion (approximately 3 years)

  3. Dose Escalation: Objective Response Rate (ORR) Of ABBV-CLS-484 And VEGFR TKI Based On Response Evaluation Criteria In Solid Tumors (RECIST) v1.1 (Combination therapy)

    ORR is defined as achieving complete response (CR) or partial response (PR) based on RECIST 1.1 criteria on treatment

    Measured: Baseline through Study Completion (approximately 3 years)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Mar 2021
  2. Study start9 Mar 2021
  3. Primary completionOct 2026 (estimated)
  4. Study completionOct 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
248 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04777994
Sponsor's protocol ID
M20-431
Other IDs
2023-507568-38-00, 2023
Status last verified
Dec 2025
First submitted
25 Feb 2021
Last updated
4 Jun 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Baumgartner CK, Ebrahimi-Nik H, Iracheta-Vellve A, Hamel KM, Olander KE, Davis TGR, McGuire KA, Halvorsen GT, Avila OI, Patel CH, Kim SY, Kammula AV, Muscato AJ, Halliwill K, Geda P, Klinge KL, Xiong Z, Duggan R, Mu L, Yeary MD, Patti JC, Balon TM, Mathew R, Backus C, Kennedy DE, Chen A, Longenecker K, Klahn JT, Hrusch CL, Krishnan N, Hutchins CW, Dunning JP, Bulic M, Tiwari P, Colvin KJ, Chuong CL, Kohnle IC, Rees MG, Boghossian A, Ronan M, Roth JA, Wu MJ, Suermondt JSMT, Knudsen NH, Cheruiyot CK, Sen DR, Griffin GK, Golub TR, El-Bardeesy N, Decker JH, Yang Y, Guffroy M, Fossey S, Trusk P, Sun IM, Liu Y, Qiu W, Sun Q, Paddock MN, Farney EP, Matulenko MA, Beauregard C, Frost JM, Yates KB, Kym PR, Manguso RT. The PTPN2/PTPN1 inhibitor ABBV-CLS-484 unleashes potent anti-tumour immunity. Nature. 2023 Oct;622(7984):850-862. doi: 10.1038/s41586-023-06575-7. Epub 2023 Oct 4.

    PubMed 37794185

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing ABBV-CLS-484, Vascular Endothelial Growth Factor Receptor (VEGFR) Tyrosine Kinase Inhibitor (TKI) and Programmed Cell Death-1 (PD-1) Inhibitor in people with Advanced Solid Tumor Cancer, run by Calico Life Sciences LLC at 30 sites in 6 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 25 inclusion and 19 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 4 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 30 sites in United States, France, Israel, South Korea, Spain and 1 more country. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Nicole Director Clinical Operations (650-754-6200, info@calicolabs.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Dose Escalation: Maximum Observed Plasma/Serum Concentration (Cmax) Of ABBV-CLS-484 (Monotherapy) (time frame: Baseline Up to Approximately Day 42). The study lists 18 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04777994, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Jun 2026.

Free account

Keep searching with a free account

You’ve used your 3 free searches for this session. Log in or create a free AzTrials account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in