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Healthy Volunteers, Pulmonary Arterial HypertensionPhase 1/2NCT06649110

A Study to Learn About the Treatment LTP001 in Healthy Participants (Part A) and in Participants With PAH (Part B)

A Phase 1/2 study testing LTP in people with Healthy Volunteers, Pulmonary Arterial Hypertension, run by Novartis Pharmaceuticals at 87 sites in 18 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

A study to learn about the treatment LTP001 in healthy participants (Part A) and in participants with PAH (Part B) Read more about this study

Who is it for?
Ages 18 to 100 yearsHealthy volunteers can take part
What is being tested?
LTP
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
232 participants
Where
87 sitesin 18 countries
Study dates
24 Oct 2024to 31 Dec 2028
Phase
Phase 1/2
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 to 100 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Part A Inclusion Criteria:

  • Healthy males and non-child-bearing potential females

Part A Exclusion Criteria:

  • Clinically significant ECG or cardiac abnormalities, any surgical or medical condition which might significantly alter the absorption, distribution, metabolism, or excretion of drugs, or which may jeopardize the participant in the study Other protocol-defined inclusion/exclusion criteria may apply.
  • For Japanese cohorts: participants per protocol should be first generation Japanese or up to third generation Japanese as defined in inclusion criteria 7 of the protocol.

Part B Inclusion Criteria:

-Confirmed diagnosis of PAH, pre-randomization PVR ≥400 dyn.sec.cm-5, treatment with stable doses of standard-of-care PAH therapies, 6-minute walk distance ≥ 150 m and ≤450 m.

Part B Exclusion Criteria:

Any surgical or medical condition which may place the participant at higher risk from his/her participation in the study Women of child-bearing potential unless they are using highly effective methods of contraception Sexually active males unwilling to use a condom during intercourse while taking study treatment and for 24 hours after stopping study treatment.

History of hypersensitivity to any of the study treatments or excipients

Other protocol-defined inclusion / exclusion criteria may apply

Trial locations and contacts

87 sites in 18 countries. Contact the study team or a site near you to ask about taking part.

Novartis Pharmaceuticals contact

1-888-669-6682

novartis.email@novartis.com

Novartis Pharmaceuticals contact

+41613241111

87 sites in 18 countries

United States20 sites, 20 recruiting
  • Emory University School of Medicine

    Atlanta, Georgia, 30322

    +1 404 778 3261

    Micah Fisher

    Recruiting
  • Univ Colorado Hospital

    Aurora, Colorado, 80045

    +1 720 848 6567

    David B Badesch

    Recruiting
  • PPD Development LP

    Austin, Texas, 78744

    +1 512 447 2985

    Jia Chang

    Recruiting
  • PPD Development LP

    Austin, Texas, 78744

    Shawn Searle

    Recruiting
  • Summit Health Eastside Clinic

    Bend, Oregon, 97701

    Jeremy Feldman

    Recruiting
  • Tufts Medical Center

    Boston, Massachusetts, 02111

    +1 617 636 4288

    Nicholas Hill

    Recruiting
  • Lahey Hospital and Medical Center

    Burlington, Massachusetts, 01805

    +1 781 744 3874

    Ioana Preston

    Recruiting
  • UT Southwestern Medical Center

    Dallas, Texas, 75390

    +1 214 645 6488

    Kelly Chin

    Recruiting
  • U of Kansas Medical Center

    Kansas City, Kansas, 66160

    +1 913 588 9722

    Leslie Spikes

    Recruiting
  • Statcare Pulmonary Consultants

    Knoxville, Tennessee, 37919

    +1 941 924 9800

    John Swisher

    Recruiting
  • Norton Infectious Diseases Specialists

    Louisville, Kentucky, 40202

    +1 502 587 8000

    John Wesley McConnell

    Recruiting
  • UC Irvine Medical Center

    Orange, California, 92868-3298

    +1 714 456 6037

    Bassam Yaghmour

    Recruiting
  • Central Florida Pulmonary Group

    Orlando, Florida, 32803-5734

    +1 407 841 1100

    Syed Mobin

    Recruiting
  • Allegheny General Hospital

    Pittsburgh, Pennsylvania, 15212-4756

    Hayah Kassis-George

    Recruiting
  • Pul Ass Richmond Inc P A R

    Richmond, Virginia, 23230-1709

    +1 804 288 5945

    Shilpa Johri

    Recruiting
  • Sky Integrative Medical Center SKYCRNG PPDS

    Ridgeland, Mississippi, 39157-5179

    Bob Hutchins

    Recruiting
  • The University of Utah

    Salt Lake City, Utah, 84132-0001

    +1 801 213 4086

    Katharine Clapham

    Recruiting
  • Arizona Pulmonary Specialists Ltd

    Scottsdale, Arizona, 85258

    +1 602 271 0832

    Akshay Muralidhar

    Recruiting
  • Stanford Medical Center

    Stanford, California, 94305

    +1 650 725 5495

    Roham Zamanian

    Recruiting
  • University of South Florida

    Tampa, Florida, 33606-3475

    +1 813 844 7137

    Ricardo Restrepo-Jaramillo

    Recruiting

Other trials in United States

France12 sites, 12 recruiting
  • Novartis Investigative Site

    Angers, France, 49933

    Recruiting
  • Novartis Investigative Site

    Brest, 29200

    Recruiting
  • Novartis Investigative Site

    Clamart, 92141

    Recruiting
  • Novartis Investigative Site

    Grenoble, 38043

    Recruiting
  • Novartis Investigative Site

    Montpellier, 34295

    Recruiting
  • Novartis Investigative Site

    Nice, 06001

    Recruiting
  • Novartis Investigative Site

    Pessac, 33604

    Recruiting
  • Novartis Investigative Site

    Poitiers, 86021

    Recruiting
  • Novartis Investigative Site

    Saint-Priest-en-Jarez, 42270

    Recruiting
  • Novartis Investigative Site

    Strasbourg, 67091

    Recruiting
  • Novartis Investigative Site

    Toulouse, 31059

    Recruiting
  • Novartis Investigative Site

    Vandœuvre-lès-Nancy, 54511

    Recruiting

Other trials in France

Germany8 sites, 8 recruiting
  • Novartis Investigative Site

    Berlin, 13125

    Recruiting
  • Novartis Investigative Site

    Berlin, 14050

    Recruiting
  • Novartis Investigative Site

    Dresden, Saxony, 01307

    Recruiting
  • Novartis Investigative Site

    Giessen, 35392

    Recruiting
  • Novartis Investigative Site

    Greifswald, 17475

    Recruiting
  • Novartis Investigative Site

    Heidelberg, 69120

    Recruiting
  • Novartis Investigative Site

    Homburg, 66421

    Recruiting
  • Novartis Investigative Site

    Regensburg, Bavaria, 93053

    Recruiting

Other trials in Germany

Italy8 sites, 8 recruiting
  • Novartis Investigative Site

    Foggia, FG, 71122

    Recruiting
  • Novartis Investigative Site

    Ivrea, TO, 10015

    Recruiting
  • Novartis Investigative Site

    Monza, MB, 20900

    Recruiting
  • Novartis Investigative Site

    Palermo, PA, 90127

    Recruiting
  • Novartis Investigative Site

    Pavia, PV, 27100

    Recruiting
  • Novartis Investigative Site

    Roma, RM, 00161

    Recruiting
  • Novartis Investigative Site

    Sassari, SS, 07100

    Recruiting
  • Novartis Investigative Site

    Trieste, TS, 34149

    Recruiting

Other trials in Italy

Spain7 sites, 7 recruiting
  • Novartis Investigative Site

    Barcelona, Catalonia, 08003

    Recruiting
  • Novartis Investigative Site

    Barcelona, 08035

    Recruiting
  • Novartis Investigative Site

    Las Palmas de Gran C, Las Palmas, 35016

    Recruiting
  • Novartis Investigative Site

    Marbella, Andalusia, 29600

    Recruiting
  • Novartis Investigative Site

    Santiago Compostela, A Coruna, 15706

    Recruiting
  • Novartis Investigative Site

    Seville, 41013

    Recruiting
  • Novartis Investigative Site

    Toledo, Castille-La Mancha, 45071

    Recruiting

Other trials in Spain

Argentina5 sites, 5 recruiting
  • Novartis Investigative Site

    Buenos Aires, Buenos Aires F.D., 1199

    Recruiting
  • Novartis Investigative Site

    CABA, C1426ABP

    Recruiting
  • Novartis Investigative Site

    Río Cuarto, X5800AEV

    Recruiting
  • Novartis Investigative Site

    San Miguel de Tucumán, T4000AXL

    Recruiting
  • Novartis Investigative Site

    Santa Fe, S3000EOZ

    Recruiting

Other trials in Argentina

Australia4 sites, 4 recruiting
  • Novartis Investigative Site

    Adelaide, South Australia, 5000

    Recruiting
  • Novartis Investigative Site

    Camperdown, New South Wales, 2050

    Recruiting
  • Novartis Investigative Site

    Darlinghurst, New South Wales, 2010

    Recruiting
  • Novartis Investigative Site

    New Lambton Heights, New South Wales, 2305

    Recruiting

Other trials in Australia

United Kingdom4 sites, 4 recruiting
  • Novartis Investigative Site

    Cambridge, CB2 0AY

    Recruiting
  • Novartis Investigative Site

    London, EC1A 7BE

    Recruiting
  • Novartis Investigative Site

    London, SW3 6PH

    Recruiting
  • Novartis Investigative Site

    Sheffield, South Yorkshire, S10 2JF

    Recruiting

Other trials in United Kingdom

Greece3 sites, 3 recruiting
  • Novartis Investigative Site

    Athens, 106 76

    Recruiting
  • Novartis Investigative Site

    Chaïdári, 124 62

    Recruiting
  • Novartis Investigative Site

    Thessaloniki, 54636

    Recruiting

Other trials in Greece

Mexico3 sites, 3 recruiting
  • Novartis Investigative Site

    Monterrey, Nuevo León, 64460

    Recruiting
  • Novartis Investigative Site

    Monterrey, Nuevo León, 64718

    Recruiting
  • Novartis Investigative Site

    San Luis Potosí City, San Luis Potosí, 78200

    Recruiting

Other trials in Mexico

Serbia3 sites, 3 recruiting
  • Novartis Investigative Site

    Belgrade, Serbia, 11000

    Recruiting
  • Novartis Investigative Site

    Kamenitz, 21204

    Recruiting
  • Novartis Investigative Site

    Niš, 18108

    Recruiting

Other trials in Serbia

Czechia2 sites, 2 recruiting
  • Novartis Investigative Site

    Prague, 128 08

    Recruiting
  • Novartis Investigative Site

    Prague, 14021

    Recruiting

Other trials in Czechia

Portugal2 sites, 2 recruiting
  • Novartis Investigative Site

    Almada, 2805-267

    Recruiting
  • Novartis Investigative Site

    Lisbon, 1769 001

    Recruiting

Other trials in Portugal

Romania2 sites, 2 recruiting
  • Novartis Investigative Site

    Bucharest, 050159

    Recruiting
  • Novartis Investigative Site

    Timișoara, Timiș County, 300310

    Recruiting

Other trials in Romania

Belgium1 site, 1 recruiting
  • Novartis Investigative Site

    Leuven, Vlaams Brabant, 3000

    Recruiting

Other trials in Belgium

Brazil1 site, 1 recruiting
  • Novartis Investigative Site

    Porto Alegre, Rio Grande do Sul, 90035-074

    Recruiting

Other trials in Brazil

Latvia1 site, 1 recruiting
  • Novartis Investigative Site

    Riga, LV 1002

    Recruiting

Other trials in Latvia

Poland1 site, 1 recruiting
  • Novartis Investigative Site

    Poznan, 61 545

    Recruiting

Other trials in Poland

About this study

Official title: A Randomized, Double-blind, Placebo-controlled Study to Evaluate the Safety, Tolerability and Pharmacokinetics of Single and Multiple Ascending Doses of LTP001 in Healthy Adult Participants (Part A) and to Evaluate the Efficacy and Safety of LTP001 for the Treatment of Participants With Pulmonary Arterial Hypertension (Part B)

A study to learn about the treatment LTP001 in healthy participants (Part A) and in participants with PAH (Part B)

Read the detailed description

The CLTP001A12202 study will explore the safety, tolerability, and pharmacokinetics of LTP001 in healthy volunteers (Part A) and will evaluate the safety and efficacy (Part B) followed by safety extension in participants with pulmonary arterial hypertension.

Being tested
LTP, Placebo
Keywords
LTP001, pulmonary arterial hypertension, PAH, PVR
Medical subject headings
Pulmonary Arterial Hypertension

What participants receive

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

  • LTPDrug

    LTP001

  • PlaceboDrug

    Placebo

Study groups in NCT06649110
Study groupRoleWhat they receive
LTP001 Dose 1ExperimentalNot described
Receives: Drug: LTP
LTP001 Dose 2ExperimentalNot described
Receives: Drug: LTP
LTP001 Dose 3ExperimentalNot described
Receives: Drug: LTP
PlaceboPlacebo comparatormatching placebo
Receives: Drug: Placebo

What is being measured

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

  1. Part A- Number of participants with Adverse events (AEs) and Serious Adverse events (SAEs)

    Safety endpoints, including vital signs, ECG, clinical laboratory evaluations and adverse events up to and including the end-of-study visit.

    Measured: Baseline to Day 35

  2. Part B-Treatment Period 1: Change in pulmonary vascular resistance (PVR)

    PVR is a hemodynamic variable of pulmonary circulation and is measured by right heart catheterization.

    Measured: Baseline to Week 24

  3. Part B-Treatment Period 2: Number of participants with Adverse events (AEs) and Serious Adverse events (SAEs)

    Safety endpoints, including vital signs, ECG, clinical laboratory evaluations, treatment-emergent adverse events and discontinuations due to adverse events.

    Measured: From Day 1 until Week 106

Secondary outcomes (10)
  1. Part A- Maximum observed plasma concentrations (Cmax)

    Cmax is defined as the maximum (peak) observed concentration following a dose.

    Measured: Baseline to Day 35

  2. Part A- Time to reach maximum plasma concentration (Tmax)

    Tmax is defined as the time to reach maximum (peak) concentration following a dose.

    Measured: Baseline to Day 35

  3. Part A- Area under plasma concentration-time curve from time zero to the last measurable concentration sampling time (AUClast)

    AUClast is the area under the plasma concentration-time curve from time zero to the time of last quantifiable concentration (tlast).

    Measured: Baseline to Day 35

  4. Part A- Area under the plasma concentration-time curve from time zero extrapolated to infinity (AUC[0-inf])

    The AUC is the area under the plasma concentration from time zero to infinity (mass x time x volume-1).

    Measured: Baseline to Day 35

  5. Part A- Terminal elimination half-life (T1/2)

    T1/2 is the elimination half-life associated with the terminal slope.

    Measured: Baseline to Day 35

  6. Part B-Treatment Period 1: Change in the Six-minute Walk Test (6MWT)

    The 6MWD test is self-paced, with standardized instructions and encouragement being given as participants walk as far as possible over 6 minutes through a flat corridor.

    Measured: Baseline to Week 24

  7. Part B-Treatment Period 1: Change in N-terminal pro-brain natriuretic peptide (NT-proBNP)

    N-terminal pro brain natriuretic peptide (NTproBNP) are peptide (small proteins) that are either hormones or part of the peptide that contained the hormone at one time. They are continually produced in small quantities in the heart and released in larger quantities when the heart senses that it needs to work harder, as in heart failure.

    Measured: Baseline to Week 24

  8. Part B-Treatment Period 1: Change in World Health Organization (WHO) functional class (FC)

    The Investigator or study staff will assign a WHO functional class to a participant based on reports of symptoms and activity limitation.

    • Class I: symptom-free when physically active or resting.
    • Class II: no symptoms at rest, but normal activities such as climbing the stairs, grocery shopping, or making the bed cause some discomfort and shortness of breath.
    • Class III: resting may be symptom-free, but normal chores around the house are greatly limited due to shortness of breath and feeling tired.
    • Class IV: symptoms at rest and severe symptoms with an activity

    Measured: Baseline to Week 24

  9. Part B-Treatment Period 2: Change in the Six-minute Walk Test (6MWT)

    The 6MWD test is self-paced, with standardized instructions and encouragement being given as participants walk as far as possible over 6 minutes through a flat corridor.

    Measured: Baseline to Month 18

  10. Part B-Treatment Period 2: Change in World Health Organization (WHO) functional class (FC)

    The Investigator or study staff will assign a WHO functional class to a participant based on reports of symptoms and activity limitation.

    • Class I: symptom-free when physically active or resting.
    • Class II: no symptoms at rest, but normal activities such as climbing the stairs, grocery shopping, or making the bed cause some discomfort and shortness of breath.
    • Class III: resting may be symptom-free, but normal chores around the house are greatly limited due to shortness of breath and feeling tired.
    • Class IV: symptoms at rest and severe symptoms with an activity

    Measured: Baseline to Month 18

Timeline

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

  1. First posted18 Oct 2024
  2. Study start24 Oct 2024
  3. Primary completion29 Nov 2028 (estimated)
  4. Study completion31 Dec 2028 (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 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
232 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06649110
Sponsor's protocol ID
CLTP001A12202
Status last verified
Jul 2026
First submitted
17 Oct 2024
Last updated
21 Jul 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Yes: Novartis is committed to sharing with qualified external researchers, access to patient-level data and supporting clinical documents from eligible studies. These requests are reviewed and approved by an independent review panel on the basis of scientific merit. All data provided is anonymized to respect the privacy of patients who have participated in the trial in line with applicable laws and regulations. This trial data availability is according to the criteria and process described on www.clinicalstudydatarequest.com.

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing LTP in people with Healthy Volunteers, Pulmonary Arterial Hypertension, run by Novartis Pharmaceuticals at 87 sites in 18 countries.

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

Who may be eligible to take part?

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 21 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 87 sites in United States, France, Germany, Italy, Spain and 13 more countries. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined 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.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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 Novartis Pharmaceuticals (1-888-669-6682, novartis.email@novartis.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Part A- Number of participants with Adverse events (AEs) and Serious Adverse events (SAEs) (time frame: Baseline to Day 35). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 21 Jul 2026.

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