Recent Updates
Recently added Catalysts

REC-7735

Phase 1

Solid Tumors | Small molecule | Oncology |Recursion Pharmaceuticals, Inc.|Trials Updated: Sep 29, 2026

REC-7735 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Sep 2026

REC-7735 target and mechanism

Molecular targetPI3Kα H1047R
Target classProtein
ModalitySmall molecule

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedCONTROLLEDBiomarker
Total Trials1
Total Enrollment90

FDA Designations

No designations recorded

REC-7735 clinical trials

REC-7735 · 1 trial · 1 indication

Phase 1 1
NCT07819136REC-7735 in Participants With Solid TumorsSolid Tumors
RECRUITING90 Analytics
PHASE1RECRUITING
REC-7735 in Participants With Solid Tumors
Solid TumorsUnlock trial analytics

Study Endpoints

Primary Endpoints

Phase 1A: Number of Participants With Dose-limiting Toxicities (DLTs)
28 days
Number of Participants With Treatment-emergent Adverse Events (TEAEs)
Up to 2 years
Phase 1B: Objective Response Rate (ORR) According to Standard Response Evaluation Criteria in Solid Tumors (RECIST) 1.1
Up to 2 years

Secondary Endpoints

Maximum (Peak) Drug Concentration (Cmax) of REC-7735
Up to 2 years
Time to Reach Cmax following drug administration (Tmax) of REC-7735
Up to 2 years
Area Under the Concentration-time Curve During a Dosing Interval (AUCtau) of REC-7735
Up to 2 years
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Phase 1A Dose Finding: REC-7735EXPERIMENTALParticipants will receive REC-7735 twice daily (BID).
Phase 1B Dose Expansion/Optimization: REC-7735EXPERIMENTALParticipants will receive REC-7735 BID.

Interventions

NameTypeDescription
REC-7735DRUGOral
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites3

Key Inclusion Criteria: * Participants have histologically-confirmed unresectable, locally advanced, or metastatic solid tumors which exhibit the PIK3CA H1047R mutation in tumor tissue and/or blood (circulating tumor deoxyribonucleic acid \[ctDNA\]). * For Phase 1A and planned monotherapy cohorts i...

Countries:United States
Unlock Eligibility Criteria

Competitive Landscape -Other Solid Tumors 10 trials (matched to "Solid Tumors")

Recent Changes (Last 90 Days)

LOWSep 29, 2026NCT07819136lastUpdatePostDate: changed
LOWSep 29, 2026NCT07819136lastUpdatePostDate: changed
LOWSep 17, 2026NCT07819136Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 17, 2026NCT07819136Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 15, 2026NCT07819136NEW_TRIAL: changed
LOWSep 15, 2026NCT07819136NEW_TRIAL: changed
LOWSep 15, 2026NCT07819136NEW_TRIAL: changed

Frequently asked questions about REC-7735

What is REC-7735?

REC-7735 is an investigational small molecule drug being developed by Recursion Pharmaceuticals, Inc. for the treatment of solid tumors. It is currently in Phase 1 clinical development and is designed to target a specific mutation-driven form of cancer, with patient selection based on a biomarker.

What is REC-7735 used for in solid tumors?

REC-7735 is being studied for use in patients with solid tumors. It is an investigational therapy in Phase 1 testing, and its clinical program enrolls adults 18 years and older with solid tumor diagnoses. It has not been approved for any indication.

What does REC-7735 target?

REC-7735 targets PI3K alpha, specifically the H1047R mutant form of the protein. PI3K alpha is a kinase involved in cell signaling, and the H1047R mutation is a known cancer-driving alteration. Targeting this mutant form is intended to focus activity on tumors carrying that mutation.

Who makes REC-7735?

REC-7735 is being developed by Recursion Pharmaceuticals, Inc., which trades on the Nasdaq under the ticker RXRX. Recursion is the sponsor of the drug's clinical program in solid tumors.

What phase is REC-7735 in?

REC-7735 is in Phase 1 clinical development. It is an investigational drug and has not been approved by the FDA or any other regulatory agency. The Phase 1 program is currently recruiting participants with solid tumors.

What clinical trials is REC-7735 in?

REC-7735 is being evaluated in one active clinical trial, NCT07819136, titled REC-7735 in Participants With Solid Tumors. The study is a Phase 1, controlled trial recruiting approximately 90 participants in the United States. It enrolls adults 18 years and older and is biomarker selected.