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Amyotrophic Lateral SclerosisPhase 1NCT03237741

Bioavailability of GDC-0134 and the Effect of Food and Proton Pump Inhibitor on Pharmacokinetics of GDC-0134 in Healthy Female Participants

A Phase 1 study testing Reference capsule GDC-0134, Prototype capsule GDC-0134 and rabeprazole in people with Amyotrophic Lateral Sclerosis, run by Genentech, Inc. at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will evaluate the pharmacokinetics and safety of GDC-0134 in healthy female volunteers of non-childbearing potential. The first part of the study will compare the bioavailability of a prototype capsule of GDC-0134 relative to an existing GDC-0134 reference capsule (Periods 1 and 2). Read more about this study

Who is it for?
Ages 30 to 65 years, women onlyHealthy volunteers can take part
Conditions the study is for
Amyotrophic Lateral Sclerosis
What is being tested?
Reference capsule GDC-0134, Prototype capsule GDC-0134 and rabeprazole
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
18 participants
Where
1 siteUnited Kingdom
Study dates
7 Aug 2017to 14 Dec 2017
Phase
Phase 1
Are there results?
None posted in the registry

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 30 to 65 years
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Healthy female participants between 30 and 65 years of age, inclusive;
  • Within body mass index range 18.0 to 35.0 kilograms per square meter (kg/m^2), inclusive;
  • Female participants will be of non-childbearing potential;
  • In good health, determined by no clinically significant findings from medical history, 12-lead echocardiogram (ECG), and vital signs;
  • Clinical laboratory evaluations within the reference range for the test laboratory, unless deemed not clinically significant by the investigator;
  • Normal ophthalmology assessment.

Who cannot join

  • Males and females of childbearing potential;
  • Significant history or clinical manifestation of any significant metabolic, allergic, dermatological, hepatic, renal, hematological, pulmonary, cardiovascular, gastrointestinal (GI), neurological, or psychiatric disorder (as determined by the investigator;
  • History of significant hypersensitivity, intolerance, or allergy to any drug compound, food, or other substance, unless approved by the investigator;
  • History of stomach or intestinal surgery or resection that would potentially alter absorption and/or excretion of orally administered drugs;
  • History of GI bleeding or GI ulcers;
  • Any personal or family history of bleeding disorders, and any personal use of drugs known to affect blood clotting within 30 days of dosing;
  • Any acute or chronic medical condition or abnormality in clinical laboratory tests that, in the investigator's judgment, precludes the subject's safe participation in and completion of the study.

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Quotient Clinical Ltd, Clinical Research Unit

    Nottingham, NG11 6JS

Other trials in United Kingdom

About this study

Official title: A Phase I Open-Label Study to Determine the Relative Bioavailability of GDC-0134 and to Investigate the Effect of Food and Proton Pump Inhibitor on Pharmacokinetics of GDC-0134 in Healthy Female Subjects of Non-childbearing Potential

This study will evaluate the pharmacokinetics and safety of GDC-0134 in healthy female volunteers of non-childbearing potential. The first part of the study will compare the bioavailability of a prototype capsule of GDC-0134 relative to an existing GDC-0134 reference capsule (Periods 1 and 2). The second part of the study will assess the effect of GDC-0134-in-applesauce preparation under fasting conditions, the effect of low and high fat foods as well as the effect of elevated stomach pH via pre-treatment with rabeprazole, a proton pump inhibitor (PPI), under fasted and high-fat meal conditions (Periods 3 and 4).

Being tested
Reference capsule GDC-0134, Prototype capsule GDC-0134, rabeprazole
Medical subject headings
Amyotrophic Lateral Sclerosis

What participants receive

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

  • Reference capsule GDC-0134Drug

    Oral administration of a single dose of 200 milligrams (mg) GDC-0134 reference capsule administered as two 100 mg capsules.

  • Prototype capsule GDC-0134Drug

    Oral administration of a single dose of 200 mg GDC-0134 prototype capsule administered as one 200 mg capsule.

  • rabeprazoleDrug

    Oral administration of 20 mg rabeprazole once daily on Days -3, -2 and -1 as well as on Day 1 two hours prior to each administration of GDC-0134 during Period 4.

Study groups in NCT03237741
Study groupRoleWhat they receive
Treatment Sequence 1: ABC1D1ExperimentalSingle dose of reference capsule GDC-0134 (Treatment A) during Period 1. Single dose of prototype capsule GDC-0134 (Treatment B) during Period 2. Single dose of GDC-0134 prototype capsule administered as GDC-0134-in-applesauce preparation under fasting conditions (Treatment C1) during Period 3. Single dose of GDC-0134 prototype capsule administered under fasting conditions in combination with 20 mg rabeprazole, and following prior administration of rabeprazole once daily for 3 days (Treatment D1) during Period 4. The washout period between doses will be a minimum of 21 days.
Receives: Drug: Reference capsule GDC-0134; Drug: Prototype capsule GDC-0134; Drug: rabeprazole
Treatment Sequence 2: ABC2D2ExperimentalSingle dose of reference capsule GDC-0134 (Treatment A) during Period 1. Single dose of prototype capsule GDC-0134 (Treatment B) during Period 2. Single dose of GDC-0134 prototype capsule administered after a high-fat meal (Treatment C2) during Period 3. Single dose of GDC-0134 prototype capsule administered after a high-fat meal in combination with 20 mg rabeprazole, and following prior administration of rabeprazole once daily for 3 days (Treatment D2) during Period 4. The washout period between doses will be a minimum of 21 days.
Receives: Drug: Reference capsule GDC-0134; Drug: Prototype capsule GDC-0134; Drug: rabeprazole
Treatment Sequence 3: BAC1D1ExperimentalSingle dose of prototype capsule GDC-0134 (Treatment B) during Period 1. Single dose of reference capsule GDC-0134 (Treatment A) during Period 2. Single dose of GDC-0134 prototype capsule administered as GDC-0134-in-applesauce preparation under fasting conditions (Treatment C1) during Period 3. Single dose of GDC-0134 prototype capsule administered under fasting conditions in combination with 20 mg rabeprazole, and following prior administration of rabeprazole once daily for 3 days (Treatment D1) during Period 4. The washout period between doses will be a minimum of 21 days.
Receives: Drug: Reference capsule GDC-0134; Drug: Prototype capsule GDC-0134; Drug: rabeprazole
Treatment Sequence 4: BAC2D2ExperimentalSingle dose of prototype capsule GDC-0134 (Treatment B) during Period 1. Single dose of reference capsule GDC-0134 (Treatment A) during Period 2. Single dose of GDC-0134 prototype capsule administered after a high-fat meal (Treatment C2) during Period 3. Single dose of GDC-0134 prototype capsule administered after a high-fat meal in combination with 20 mg rabeprazole, and following prior administration of rabeprazole once daily for 3 days (Treatment D2) during Period 4. The washout period between doses will be a minimum of 21 days.
Receives: Drug: Reference capsule GDC-0134; Drug: Prototype capsule GDC-0134; Drug: rabeprazole

What is being measured

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

  1. Area Under the Plasma Concentration-Time Curve Extrapolated to Infinity (AUC0-inf) of GDC-0134

    The AUC0-inf is calculated in a plot of concentration of drug in blood plasma against time and extrapolated to infinity.

    Measured: Periods 1-4: Day 1: pre-dose, post-dose at 0.5 hours (h), 1 h, 1.5 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h and 16 h, Day 2: post-dose 24 h and 36 h, Day 3, Day 4, Day 6, Day 8, Day 15 and Day 22

  2. Area Under the Plasma Concentration-Time Curve up to Time Tau (AUC0-t) of GDC-0134

    The AUC0-t is calculated in a plot of concentration of drug in blood plasma against time and calculated up to the time of the last measurable GDC-0134 concentration.

    Measured: Periods 1-4: Day 1: pre-dose, post-dose at 0.5 hours (h), 1 h, 1.5 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h and 16 h, Day 2: post-dose 24 h and 36 h, Day 3, Day 4, Day 6, Day 8, Day 15 and Day 22

  3. Maximum Observed Concentration (Cmax) of GDC-0134

    Cmax is the maximum observed concentration of drug in blood plasma.

    Measured: Periods 1-4: Day 1: pre-dose, post-dose at 0.5 hours (h), 1 h, 1.5 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h and 16 h, Day 2: post-dose 24 h and 36 h, Day 3, Day 4, Day 6, Day 8, Day 15 and Day 22

  4. Time to Maximum Concentration (Tmax) of GDC-0134

    Tmax is the time elapsed from the time of drug administration to maximum plasma concentration.

    Measured: Periods 1-4: Day 1: pre-dose, post-dose at 0.5 hours (h), 1 h, 1.5 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h and 16 h, Day 2: post-dose 24 h and 36 h, Day 3, Day 4, Day 6, Day 8, Day 15 and Day 22

  5. Apparent Half-Life (t1/2) of GDC-0134

    Half-life is defined as the time required for the drug plasma concentration to be reduced to half.

    Measured: Periods 1-4: Day 1: pre-dose, post-dose at 0.5 hours (h), 1 h, 1.5 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h and 16 h, Day 2: post-dose 24 h and 36 h, Day 3, Day 4, Day 6, Day 8, Day 15 and Day 22

Secondary outcomes (1)
  1. Percentage of Participants with Adverse Events

    An adverse event is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An adverse event can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as adverse events.

    Measured: From baseline until 21 days after the last dose of study drug up to approximately 16 weeks

Timeline

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

  1. First posted2 Aug 2017
  2. Study start7 Aug 2017
  3. Primary completion14 Dec 2017
  4. Study completion14 Dec 2017

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
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
18 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03237741
Sponsor's protocol ID
GP39778
Other IDs
2017-000299-27, 2017
Status last verified
Feb 2024
First submitted
31 Jul 2017
Last updated
1 Mar 2024
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Reference capsule GDC-0134, Prototype capsule GDC-0134 and rabeprazole in people with Amyotrophic Lateral Sclerosis, run by Genentech, Inc. at 1 site in United Kingdom.

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 6 inclusion and 7 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: finished, as of the sponsor's last update on 1 Mar 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Area Under the Plasma Concentration-Time Curve Extrapolated to Infinity (AUC0-inf) of GDC-0134 (time frame: Periods 1-4: Day 1: pre-dose, post-dose at 0.5 hours (h), 1 h, 1.5 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h and 16 h, Day 2: post-dose 24 h and 36 h, Day 3, Day 4, Day 6, Day 8, Day 15 and Day 22). The study lists 5 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 1 Mar 2024.

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