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Old malaria drug could boost lung cancer treatment

NCT ID NCT04648033

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-phase trial tested adding the anti-parasitic drug atovaquone to standard chemotherapy and radiation for people with locally advanced non-small cell lung cancer. The main goal was to find the safest dose of atovaquone in this combination. Twenty-one participants received one of four doses to check for severe side effects. The study is complete, but results are not yet available.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Atovaquone (an anti-parasitic drug) combined with standard chemotherapy (cisplatin and vinorelbine) and radiation therapy
What this could lead to
If it works, this could point toward a way to make standard lung cancer treatment more effective by targeting low-oxygen areas in tumors.
What could go wrong
This is a very early, small phase 1 trial with only 21 people, focused on safety and dosing. It is not designed to prove the combination works, and side effects may be significant.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

21 people

The number who actually took part.

Started

Dec 2020

Finished

Oct 2023

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: A patient will be eligible for inclusion in this study if all of the following criteria apply: 1. Histologically or cytologically confirmed diagnosis of locally advanced NSCLC and selected for treatment with full dose radical concurrent CRT 2. At least one measurable lesion greater than 2 cm maximal length in any direction on routine imaging (CT or PET-CT scan performed in the 60 days prior to consent) 3. Male or female, age at least 18 years 4. ECOG performance status 0 or 1 5. Adequate pulmonary function tests for thoracic radiotherapy (FEV1 and TLCO, greater than 40 percent predicted) 6. Haematological and biochemical indices within the ranges shown below: Bilirubin ≤ 1.5 x upper limit of normal (ULN); ALT and/or AST ≤ 2.5 x ULN; Creatinine clearance ≥ 60 mL/min; Absolute Neutrophil Count ≥ 1.5 x 10\*9/L; Platelets ≥ 100 x 10\*9/L; Haemoglobin ≥ 90 g/L; INR ≤ 1.5 7. The patient is willing and able to comply with the protocol scheduled follow-up visits and examinations for the duration of the study 8. Written (signed and dated) informed consent and be capable of co-operating with protocol Exclusion Criteria: 1. Pregnant or breast-feeding women, or women of childbearing potential unless effective methods of contraception are used 2. Previous systemic chemotherapy or biological therapy within 21 days of commencing atovaquone treatment 3. Treatment with any other investigational agent as part of a clinical trial within 28 days of study enrolment 4. Previous thoracic radiotherapy 5. Known previous adverse reaction to atovaquone or its excipients 6. Active hepatitis, gallbladder disease or pancreatitis 7. Impaired gastrointestinal function that may significantly alter absorption of atovaquone 8. Concurrent administration of warfarin in the 14 days prior to starting atovaquone 9. Concurrent administration of known electron transport chain inhibitors (e.g. metformin). A wash-out period prior to administration of atovaquone is required (e.g. 4 days for metformin). 10. An additional cancer diagnosis that the treating clinician feels may significantly impact planned CRT treatment tolerability or treatment outcome 11. Established diagnosis of pulmonary fibrosis 12. Established diagnosis of connective tissue disorder (e.g. scleroderma or systemic lupus erythematosus) 13. Cardiac morbidity such as angina, myocardial infarction in the previous six months, unstable angina or uncontrolled hypertension, left ventricular failure or severe valvular disease

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Churchill Hospital, Oxford University Hospitals

    Oxford, OX3 7LE, United Kingdom

  • Guy's and St Thomas'

    London, SE1 9RT, United Kingdom

  • Western General Hospital, NHS Lothian

    Edinburgh, EH4 2XU, United Kingdom

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