Recent Updates
Recently added Catalysts

Camlipixant

Phase 2

Irritable Bowel Syndrome | Small molecule | Gastrointestinal |GSK plc|Last Updated: Jun 25, 2026

Target and mechanism

Molecular targetP2RX3
Target classAntagonist
ModalitySmall molecule

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment420

FDA Designations

No designations recorded

Clinical trial landscape

Camlipixant · 4 trials · 3 indications

Phase 2 1Phase 1 3
NCT07519395A Study to Investigate Abdominal Symptoms With Camlipixant Compared With Placebo in Adults With Irritable Bowel Syndrome - Diarrhea (IBS-D) and Irritable Bowel Syndrome - Mixed (IBS-M)Irritable Bowel Syndrome
RECRUITING420 Analytics
PHASE2RECRUITING
A Study to Investigate Abdominal Symptoms With Camlipixant Compared With Placebo in Adults With Irritable Bowel Syndrome - Diarrhea (IBS-D) and Irritable Bowel Syndrome - Mixed (IBS-M)
Irritable Bowel SyndromeUnlock trial analytics

Study Endpoints

Primary Endpoints

Change from Baseline in Weekly Abdominal pain intensity (API) over Weeks 7 to 12
Baseline, Weeks 7 to 12 (time - average)

Participants rate their pain intensity daily on a numeric rating scale from 0 (no pain) to 10 (worst possible pain). Weekly API scores are derived by averaging daily API scores. Higher score indicates worst outcome. A repeated measures statistical analysis is applied to weekly scores, and the result for the Weeks 7 to 12 interval is obtained by averaging adjusted mean estimates for Weeks 7, 8, 9, 10, 11 and 12.

Part 1: Area Under the Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC[0-inf]) of Camlipixant
Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 36, 48, 72 and 96 hours post-dose

Blood samples were collected at indicated time points for pharmacokinetic (PK) analysis of camlipixant. PK analysis was conducted using standard non-compartmental methods.

Part 2: AUC(0-inf) of Camlipixant
Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 36, 48, 72 and 96 hours post-dose

Blood samples were collected at indicated time points for PK analysis of camlipixant. PK analysis was conducted using standard non-compartmental methods.

Part 1: Maximum Observed Plasma Concentration (Cmax) of Camlipixant
Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 36, 48, 72 and 96 hours post-dose

Blood samples were collected at indicated time points for PK analysis of camlipixant. PK analysis was conducted using standard non-compartmental methods.

Part 2: Cmax of Camlipixant
Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 24, 36, 48, 72 and 96 hours post-dose

Blood samples were collected at indicated time points for PK analysis of camlipixant. PK analysis was conducted using standard non-compartmental methods.

Part 1: Area Under the Concentration-time Curve From Time Zero to Infinity (AUC-inf) of Camlipixant
Pre-dose, 0.25 , 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 15, 18, 24, 48, 72 hours post-dose on Day 1 and Day 9

Blood samples were collected at indicated time points for PK analysis of Camlipixant. PK analysis was conducted using standard non-compartmental methods.

Part 1: Area Under the Concentration-time Curve From Time Zero Until the Last Observed Concentration (AUC[0-t]) of Camlipixant
Pre-dose, 0.25 , 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 15, 18, 24, 48, 72 hours post-dose on Day 1 and Day 9

Blood samples were collected at indicated time points for PK analysis of Camlipixant. PK analysis was conducted using standard non-compartmental methods.

Part 1: Maximal Observed Concentration (Cmax) of Camlipixant
Pre-dose, 0.25 , 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 15, 18, 24, 48, 72 hours post-dose on Day 1 and Day 9

Blood samples were collected at indicated time points for PK analysis of Camlipixant. PK analysis was conducted using standard non-compartmental methods.

Part 2: AUC(0-Infinity) of Free Dabigatran
Pre-dose, 0.25 , 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 10, 12, 16, 24, 36, 48, 60, 72 hours post-dose on Day 1 and Day 10

Blood samples were collected at indicated time points for PK analysis of Dabigatran. PK analysis was conducted using standard non-compartmental methods.

Part 2: AUC(0-t) of Free Dabigatran
Pre-dose, 0.25 , 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 10, 12, 16, 24, 36, 48, 60, 72 hours post-dose on Day 1 and Day 10

Blood samples were collected at indicated time points for PK analysis of Dabigatran. PK analysis was conducted using standard non-compartmental methods.

Part 2: Cmax of Free Dabigatran
Pre-dose, 0.25 , 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 10, 12, 16, 24, 36, 48, 60, 72 hours post-dose on Day 1 and Day 10

Blood samples were collected at indicated time points for PK analysis of Dabigatran. PK analysis was conducted using standard non-compartmental methods.

Part 2: AUC(0-Infinity) of Total Dabigatran
Pre-dose, 0.25 , 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 10, 12, 16, 24, 36, 48, 60, 72 hours post-dose on Day 1 and Day 10

Blood samples were collected at indicated time points for PK analysis of Dabigatran. PK analysis was conducted using standard non-compartmental methods.

Part 2: AUC(0-t) of Total Dabigatran
Pre-dose, 0.25 , 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 10, 12, 16, 24, 36, 48, 60, 72 hours post-dose on Day 1 and Day 10

Blood samples were collected at indicated time points for PK analysis of Dabigatran. PK analysis was conducted using standard non-compartmental methods.

Part 2: Cmax of Total Dabigatran
Pre-dose, 0.25 , 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 6, 8, 10, 12, 16, 24, 36, 48, 60, 72 hours post-dose on Day 1 and Day 10

Blood samples were collected at indicated time points for PK analysis of Dabigatran. PK analysis was conducted using standard non-compartmental methods.

Part 1: Area Under the Plasma Concentration-time Curve From Time Zero to Infinity (AUC[0-Infinity]) of Camlipixant
Pre-dose, 0.16, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 15, 18, 24, 36, and 48 hours post-dose on Day 1 and Day 11

Blood samples were collected at indicated time points for pharmacokinetic (PK) analysis of Camlipixant. PK analysis was conducted using standard non-compartmental methods.

Part 2: AUC(0-Infinity) of Camlipixant
Pre-dose, 0.16, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 15, 18, 24, 36, and 48 hours post-dose on Day 1 and Day 10

Blood samples were collected at indicated time points for PK analysis of Camlipixant. PK analysis was conducted using standard non-compartmental methods.

Part 1: Area Under the Plasma Concentration-time Curve From Time Zero Until the Last Observed Concentration (AUC[0-t]) of Camlipixant
Pre-dose, 0.16, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 15, 18, 24, 36, and 48 hours post-dose on Day 1 and Day 11

Blood samples were collected at indicated time points for PK analysis of Camlipixant. PK analysis was conducted using standard non-compartmental methods.

Part 2: AUC(0-t) of Camlipixant
Pre-dose, 0.16, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 15, 18, 24, 36, and 48 hours post-dose on Day 1 and Day 10

Blood samples were collected at indicated time points for PK analysis of Camlipixant. PK analysis was conducted using standard non-compartmental methods.

Part 1: Maximum Observed Concentration (Cmax) of Camlipixant
Pre-dose, 0.16, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 15, 18, 24, 36, and 48 hours post-dose on Day 1 and Day 11

Blood samples were collected at indicated time points for PK analysis of Camlipixant. PK analysis was conducted using standard non-compartmental methods.

Secondary Endpoints

Change from Baseline in weekly abdominal score over Weeks 7 to 12
Baseline, Weeks 7 to 12 (time - average)
Percentage of API responders up to Week 12
Up to Week 12
Change from Baseline in Weekly API over Weeks 7 to 12 (IBS-D participants)
Baseline, Weeks 7 to 12 (time - average)
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Placebo/Placebo or CamlipixantPLACEBO_COMPARATORParticipants will receive placebo in Part A and Placebo or Camlipixant in Part B.
Camlipixant dose level 1/Placebo or CamlipixantEXPERIMENTALParticipants will receive Camlipixant dose level 1 in Part A and Placebo or Camlipixant in Part B.
Camlipixant dose level 2/Placebo or CamlipixantEXPERIMENTALParticipants will receive Camlipixant dose level 2 in Part A and Placebo or Camlipixant in Part B.
Camlipixant dose level 3/Placebo or CamlipixantEXPERIMENTALParticipants will receive Camlipixant dose level 3 in Part A and Placebo or Camlipixant in Part B
Part 1: Moderate HI ParticipantsEXPERIMENTALParticipants with moderate HI received a single dose of camlipixant 50 milligrams (mg) tablet orally on Day 1 in the fasted state.
Part 1: Matched Healthy Participants to Moderate HIEXPERIMENTALHealthy participants (matched to participants with moderate HI) received a single dose of camlipixant 50 mg tablet orally on Day 1 in the fasted state.
Part 2: Severe HI ParticipantsEXPERIMENTALParticipants with severe HI received a single dose of camlipixant 50 mg tablet orally on Day 1 in the fasted state.
Part 2: Matched Healthy Participants to Severe HIEXPERIMENTALHealthy participants (matched to participants with severe HI) received a single dose of camlipixant 50 mg tablet orally on Day 1 in the fasted state.
Part 1: Camlipixant 50 mg + Gemfibrozil 600 mgEXPERIMENTALParticipants received a single oral dose of camlipixant 50 milligram (mg) tablet on Day 1, followed by repeat oral doses of gemfibrozil 600 mg tablet twice daily (BID), every 12 hours, (total daily dose of 1200 mg) on Days 5 to 11, with co-administration of a single oral dose of camlipixant 50 mg tablet with the gemfibrozil on Day 9. There was a washout of at least 4 days between the dose of camlipixant on Day 1 and the dose of gemfibrozil on Day 5.
Part 2: Dabigatran etexilate 150 mg + camlipixant 50 mgEXPERIMENTALParticipants received single oral dose of dabigatran etexilate 150 mg capsule on Day 1, followed by repeated oral doses of camlipixant 50 mg tablet twice daily (BID) (total daily dose of 100 mg) from Days 5 to 9, with co-administration of a single oral dose of dabigatran etexilate 150 mg capsule with the morning dose of camlipixant on Day 10. There was a washout of at least 4 days between the dose of dabigatran etexilate on Day 1 and the dose of camlipixant on Day 5.
Part 1: Camlipixant 50 mg + Rifampin 600 mgEXPERIMENTALParticipants will receive a single oral dose of camlipixant 50 milligram (mg) tablet on Day 1, followed by repeat oral doses (2\*300 mg) of rifampin 600 mg capsules, once daily (QD) from Days 4 to 12, with co-administration of a single oral dose of 50 mg camlipixant tablet with rifampin capsules on Day 11. There will be a washout of at least 3 days between the dose of camlipixant on Day 1 and the dose of rifampin on Day 4.
Part 2: Camlipixant 50 mg + Rabeprazole 20 mgEXPERIMENTALParticipants will receive a single oral dose of camlipixant 50 mg tablet on Day 1, followed by repeat oral doses of 20 mg rabeprazole enteric-coated tablets, once daily (QD) from Days 4 to 11, with co-administration of a single oral dose of 50 mg camlipixant tablet with rabeprazole enteric-coated tablet on Day 10. There will be a washout of at least 3 days between the dose of camlipixant on Day 1 and the dose of rabeprazole on Day 4

Interventions

NameTypeDescription
PlaceboDRUGPlacebo to be administered
CamlipixantDRUGCamlipixant to be administered
Dabigatran etexilateDRUGDabigatran etexilate will be administered
GemfibrozilDRUGGemfibrozil will be administered.
RabeprazoleDRUGRabeprazole will be administered
RifampinDRUGRifampin will be administered.
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to 80 Years
SexALL
Healthy VolunteersNo
Study Sites110

Inclusion Criteria: * Male or female aged 18 to 80 years inclusive, at the time of signing the Informed consent form (ICF). * Diagnosis of IBS-D or IBS-M according to the Rome IV criteria at screening * Moderate or severe irritable bowel syndrome (IBS) based on Irritable bowel syndrome Severity Sco...

Countries:United StatesCanada
Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

LOWJun 25, 2026NCT07519395Status: NOT_YET_RECRUITING → RECRUITING
LOWJun 25, 2026NCT07519395Status: NOT_YET_RECRUITING → RECRUITING
LOWJun 25, 2026NCT07519395Status: NOT_YET_RECRUITING → RECRUITING

Frequently asked questions about Camlipixant

What is Camlipixant used for?

Camlipixant is an investigational small molecule being studied for cough and irritable bowel syndrome (IBS). It is in clinical development for these conditions, including a Phase 2 trial in adults with IBS with diarrhea (IBS-D) and IBS with mixed bowel habits (IBS-M). It is not approved by the FDA.

Who makes Camlipixant?

Camlipixant is being developed by GSK plc, a global biopharma company listed on the New York Stock Exchange under the ticker GSK. GSK is conducting clinical trials of Camlipixant in healthy volunteers and in patients with cough and irritable bowel syndrome.

What phase is Camlipixant in?

Camlipixant is in Phase 1 and Phase 2 clinical development. Phase 1 trials have been completed in healthy participants and in participants with hepatic impairment, and a Phase 2 trial is currently recruiting participants with irritable bowel syndrome. Camlipixant is investigational and not yet approved.

What clinical trials is Camlipixant in?

Camlipixant has been studied in several clinical trials. Completed Phase 1 trials include NCT05899829, NCT05959447, and NCT06222892, which evaluated drug interactions and the effects of hepatic impairment. A Phase 2 trial, NCT07519395, is recruiting adults with irritable bowel syndrome with diarrhea or mixed bowel habits.

Is Camlipixant being studied in healthy volunteers?

Yes, Camlipixant has been studied in healthy volunteers in several Phase 1 trials. These trials, conducted in Canada and the United States, enrolled healthy participants to evaluate drug interactions and pharmacokinetics. One trial also included participants with hepatic impairment.

What is the Phase 2 trial of Camlipixant studying?

The Phase 2 trial of Camlipixant, NCT07519395, is studying abdominal symptoms in adults with irritable bowel syndrome with diarrhea (IBS-D) and irritable bowel syndrome with mixed bowel habits (IBS-M). This randomized, controlled trial is recruiting 420 participants in the United States.