Phase 3 study

Recruiting Phase 3

Sources: ClinicalTrials.gov Checked: 15 October 2026 Not medical advice

This trial at a glance

Status Recruiting
Phase Phase 3
Sponsor Novartis Pharmaceuticals
Registry number NCT05948943
Started 24 November 2023 Today 16 October 2026 Estimated completion 31 May 2028

Where this trial is running

Trial sites and the status recorded for each
SiteCityState or countryStatus at this site
Novartis Investigative Site Sydney NSW Recruiting
Novartis Investigative Site Sydney NSW Recruiting
Novartis Investigative Site Brisbane QLD Recruiting

voxsanity.com.au · trial sites from public registries · registry record synced 15 October 2026 · not medical advice

Who can join

Age 0 Years to 100 Years
Sex Anyone, regardless of sex
Healthy volunteers Not accepted
Enrolment target 232

The official eligibility criteria

Registry text, reproduced exactly. These are the words the trial's sponsor published on ClinicalTrials.gov. They have not been edited, shortened or rewritten, and they are written for researchers rather than for patients.

Key inclusion criteria:

1. Signed informed consent and assent (when applicable) from the participant, parent, legal authorized representative or guardian.

2. Participant must be willing to remain at the clinical site as required by the protocol and be willing to adhere to study restrictions and examination schedules.

3. Participant has a physician confirmed and documented diagnosis of a symptomatic LyM at the time of informed consent (Note: the physician must confirm that the LyM cannot be included under the PROS diagnostic criteria).

4. Participant is not considered as a candidate for or is not willing to receive non-drug therapies including but not limited to sclerotherapy, embolization, and surgery until the completion of Week 24 in Stage 1 and 2.

5. Participant has evidence of a somatic mutation(s) in the PIK3CA gene prior to randomization.

6. Participant has at least one measurable LyM lesion confirmed by BIRC assessment prior to randomization.

7. Participants must be able to ingest study drug (either in tablet form or as a drinkable suspension \[Groups 1 to 4\] or granules or as an oral suspension \[Group 5\]) as assessed within 7 days before study treatment start. Drug administration via feeding tubes is allowed.

Key exclusion criteria:

1. Participant has a physician-confirmed and documented diagnosis of PROS at the time of informed consent.

2. Participant has a physician-confirmed and documented diagnosis of a Central Conducting Lymphatic Anomaly, General Lymphatic Anomaly, Gorham-Stout disease, Kaposiform lymphangiomatosis at the time of informed consent.

3. Participant has a known history of Stevens-Johnson syndrome, erythema multiforme, or toxic epidermal necrolysis at the time of informed consent.

4. Participant has an established diagnosis of type I diabetes mellitus or uncontrolled type II diabetes mellitus at the time of informed consent.

5. Participant had previous treatment with alpelisib and/or any other PI3K inhibitors with treatment duration longer than 2 weeks at the time of informed consent.

Other inclusion/exclusion criteria may apply

Dates on the record

Started 24 November 2023
Estimated completion 31 May 2028
Registry last updated 9 October 2026
Checked by Voxsanity 15 October 2026

Results, publications and the official record

Sources and dates

  • ClinicalTrials.gov – the record this page reformats
  • ClinicalTrials.gov processing date: 9 October 2026.
  • This page last checked by Voxsanity: 15 October 2026.

Voxsanity reformats data from public registries into this layout. It does not edit, interpret or add to what the registry published.

Not medical advice.

Individual trial records are refreshed on a rolling basis rather than all at once, so a record may be up to several weeks old. Each trial page and trial card shows the date its own record was last synced. Where a record has lagged, its status, sites and enrolment can differ from the current registry state in either direction, so check the registry link on the trial page before acting on them.

Letter for your doctor

A one-page summary of this trial to print or email to your GP. It carries the registry's own record of the trial and its eligibility criteria, and nothing Voxsanity has written about whether it suits you.